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HomeMy WebLinkAbout04.29.2025@630 SP CC MSBTuesday, April 29, 2025 6:30 PM City of South San Francisco P.O. Box 711 (City Hall, 400 Grand Avenue) South San Francisco, CA Library Parks & Recreation Building, Council Chambers 901 Civic Campus Way, South San Francisco, CA Special City Council EDDIE FLORES, Mayor (District 5) MARK ADDIEGO, Vice Mayor (District 1) JAMES COLEMAN, Councilmember (District 4) MARK NAGALES, Councilmember (District 2) BUENAFLOR NICOLAS, Councilmember (District 3) ROSA GOVEA ACOSTA, City Clerk FRANK RISSO, City Treasurer SHARON RANALS, City Manager SKY WOODRUFF, City Attorney Special Meeting Agenda 1 April 29, 2025Special City Council Special Meeting Agenda Zoom Link Below - No Registration Required Join Zoom meeting: https://ssf-net.zoom.us/j/81194559924 (Enter your email and name) Webinar ID: 811 9455 9924 Join by Telephone: + 1 669 444 9171 How to provide Public Comment during the City Council Meeting: 1. 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Page 2 City of South San Francisco Printed on 4/30/2025 2 April 29, 2025Special City Council Special Meeting Agenda CALL TO ORDER ROLL CALL AGENDA REVIEW ADMINISTRATIVE BUSINESS Report regarding a facility condition assessment, seismic study, operating cost analysis, environmental analysis, and Housing Element opportunity sites analysis for the Municipal Services Building, and options for how to proceed with reopening or redeveloping the site (Sharon Ranals, City Manager; Eunejune Kim, Public Works Director; Greg Mediati, Director of Parks and Recreation; Jake Gilchrist, Director of Capital Projects; Nell Selander, Director of Economic and Community Development) 1. PUBLIC COMMENTS: Comments are limited to items on the Special Meeting Agenda. ADJOURNMENT Page 3 City of South San Francisco Printed on 4/30/2025 3 City of South San Francisco Legislation Text P.O. Box 711 (City Hall, 400 Grand Avenue) South San Francisco, CA File #:25-481 Agenda Date:4/29/2025 Version:1 Item #:1. Report regarding a facility condition assessment,seismic study,operating cost analysis,environmental analysis, and Housing Element opportunity sites analysis for the Municipal Services Building,and options for how to proceed with reopening or redeveloping the site (Sharon Ranals,City Manager;Eunejune Kim,Public Works Director;Greg Mediati,Director of Parks and Recreation;Jake Gilchrist,Director of Capital Projects;Nell Selander, Director of Economic and Community Development) RECOMMENDATION Staff recommends that the City Council receive a report from staff regarding a facility condition assessment and seismic study conducted for the Municipal Services Building (MSB),as well as an update on environmental site assessment data collected on the property,operating cost analysis,and evaluation of alternative Housing Element opportunity sites.The report also includes options for how to proceed with reopening or redeveloping the MSB site.Staff recommends Council receive this information and provide direction on whether to proceed with reopening or redeveloping the MSB,or alternatively to take no action for a period of time while the City’s budget position is stabilized. BACKGROUND The Municipal Services Building (MSB),located at 33 Arroyo Drive,is a concrete tilt-up building constructed in 1969 as a retail store.In the late 1970s,the City purchased the property to convert it into a public facility to house the Parks and Recreation Department,Police Department,and Fire Department,which it did until the Police Department relocated in 2022 to 1 Chestnut Avenue,and the Parks and Recreation Department followed suit in 2023 with the opening of the new Library | Parks and Recreation Center at 901 Civic Campus Way. In 2018,as part of the overall Community Civic Campus planning,staff completed a design development package for Fire Station 63 and then paused the project to develop a funding strategy for construction.At the time,the site for Station 63 was imagined to be the northwest corner of the MSB property at Camaritas Avenue and Arroyo Drive.In late 2020,staff learned that the property across the street at 71 Camaritas Avenue was on the market.While Economic and Community Development staff negotiated with the property owner,the Capital Projects team worked with the Fire Station architects to confirm that the 71 Camaritas site was an appropriate location,including an Engineering Review with the San Francisco Public Utilities Commission, which holds an easement on the back side of the property.City Council approved the purchase of 71 Camaritas Avenue at the July 28, 2021 City Council meeting. Currently,planning and design for Fire Station 63 is in progress.The project is expected to cost more than $36 million due to inflation and current market volatility created by the recent implementation of new trade tariffs. Assuming that full funding can be secured,staff expects to advertise the construction project for bid in Summer 2026 and construction will take approximately 2 years,with the move into the new Station 63 at 71 Camaritas City of South San Francisco Printed on 4/25/2025Page 1 of 14 powered by Legistar™4 File #:25-481 Agenda Date:4/29/2025 Version:1 Item #:1. 2026 and construction will take approximately 2 years,with the move into the new Station 63 at 71 Camaritas Avenue to be completed by the end of 2028.For more information on the history of Fire Station 63 and the scope of the redesign, see Attachment 1). Because of the City’s intended vacation of the MSB and use of the L|PR site for community uses rather than housing,the City included the MSB site as a Housing Opportunity Site in the City’s 2015-2023 and 2023-2031 Housing Elements.While inclusion of the MSB as a Housing Opportunity Site does not require its redevelopment for housing and the City has taken no action to solicit a developer or pursue its redevelopment, the City Council has nonetheless received significant public comment regarding preserving the MSB and reopening it as a senior or community center. Considering this community interest in the MSB site and City Council direction to engage the public in a dialogue regarding its future use,staff prepared a staff report on the MSB and West Orange Library,which was presented to Council on June 26,2024.That report included a recommendation to proceed with engaging a consultant to facilitate community conversations to inform future use of these sites.On August 28,2024,staff returned to City Council with a professional services contract with a highly qualified firm to facilitate these community conversations.At that meeting,Council chose not to take action on the contract and instead directed staff to return to Council with a facility needs assessment and cost estimates for reopening the MSB,as well as potential alternative sites should Council desire to remove the MSB from the City’s list of Housing Element opportunity sites. The preparation of this information -facility condition assessment,seismic study,environmental site assessment,and Housing Element opportunity site alternatives -is in response to Council feedback and direction provided in August 2024.This Background section includes the results of these various analyses, while the Discussion session of this report provides a more concise description of the City’s options to proceed, or not, with reuse or redevelopment of the MSB site. Seismic Study To accurately assess the costs of potentially reopening or repurposing the MSB and to augment the facility condition assessment,which does not take into account seismic retrofitting or ADA accessibility,staff engaged Biggs Cardosa Associates,Inc.to provide a preliminary seismic evaluation of the lateral load-resisting system of the MSB and determine how it complies with the seismic performance requirements of California Building Code Seismic Risk Categories.The report,included as Attachment 2,concluded that the MSB does not meet current earthquake safety standards.While this may be an alarming statement,it is true of many buildings across the Bay Area,especially concrete tilt-up buildings like the MSB.The seismic stability only needs to be addressed if the city voluntarily decides to increase seismic resilience,or if significant walls are altered,there is a significant change in use, or additional weight is added to the building. Although the Municipal Services Building (MSB)met all applicable building codes at the time of its original construction and subsequent occupancy,it does not meet current seismic performance standards under the California Building Code.Importantly,there is no legal requirement to seismically retrofit the MSB unless the City initiates a substantial renovation,change of use,or structural alteration that would trigger mandatory City of South San Francisco Printed on 4/25/2025Page 2 of 14 powered by Legistar™5 File #:25-481 Agenda Date:4/29/2025 Version:1 Item #:1. City initiates a substantial renovation,change of use,or structural alteration that would trigger mandatory upgrades.However,given the MSB's concrete tilt-up construction and known deficiencies in its lateral load- resisting system,the City determined that continued long-term investment in the facility would not represent a prudent use of public funds.Rather than risk ongoing maintenance and potential life safety concerns in a facility that fails to meet modern resilience standards,the City opted to invest in new,state-of-the-art public facilities-such as the new Police Department,Library |Parks and Recreation Center,and upcoming Fire Station 63-which are designed to meet or exceed current seismic safety and accessibility requirements.This approach ensures greater long-term value, safety, and service continuity for South San Francisco residents. The report identified the following key issues regarding the MSB’s seismic resilience: ·Weak connections between the walls and floors and roof ·Gaps or breaks in walls that should help stabilize the building ·Concrete walls that are not strong enough to resist shaking ·Seismic upgrades done in the past warrant further attention The California Building Code identifies various risk categories to evaluate seismic safety.Because of the issues identified above,the MSB does not meet current safety standards for any of the Risk Categories most relevant to its current and former uses:Risk Category II for offices,Risk Category III for assembly and essential community services,and Risk Category IV for critical buildings like emergency centers or fire stations.The report then identified the cost associated with bringing the MSB into compliance with safety standards to comply with the various risk categories: ·Risk Category II, office buildings, estimated upgrade cost is $5.6 million. ·Risk Category III, assembly and essential community services, estimated upgrade cost is $6.5 million. ·Risk Category IV, critical buildings like emergency centers, estimated upgrade cost is $7.6 million. Even at the lowest level of seismic safety (“Collapse Prevention”),the building fails for Categories II and III. This means that in a strong earthquake,the building could suffer major damage or collapse,posing serious risk to occupants. Voluntary versus Mandatory Seismic Upgrades Seismic upgrades can be either voluntary or mandatory.Voluntary upgrades are chosen by owners to improve safety and protect their building.Mandatory upgrades are legally required by the California Building Code and are triggered by changes that significantly change the building's weight,lateral load resisting system,or by changes in use that result in a higher Seismic Risk Category.If building improvements do not significantly affect these factors, seismic upgrades are not required. Past Seismic Upgrades at the MSB In 2010,as part of the Federally funded remodel project for Fire Station 63,critical seismic upgrades to the Fire Station’s ceiling,exterior walls,and apparatus bay were performed.Based on the MSB’s age,it was recommended,through a seismic study,to further expand the seismic retrofit work to capture a much larger portion of the MSB,as it would provide additional protection for the station and surrounding areas.Due to the City of South San Francisco Printed on 4/25/2025Page 3 of 14 powered by Legistar™6 File #:25-481 Agenda Date:4/29/2025 Version:1 Item #:1. portion of the MSB,as it would provide additional protection for the station and surrounding areas.Due to the grant’s restrictions,this was not possible,as work outside of the station’s footprint was not allowable.The work that was performed strengthened the apparatus bay and provided a much higher level of protection with the intent of accessing the engine and ambulance post-earthquake.The work also allowed for a raised apparatus bay ceiling,providing access for any of the Fire Department’s engines and ambulances.Additionally,work was done to secure the exterior walls to both the roof and the second floor.This was done to reduce the chance of a wall failure that could prevent access and/or egress to the Station.While this work provided a significant benefit to the resiliency of Fire Station 63’s apparatus bay area and exterior walls,the 2010 seismic evaluation of the building indicated that the existing building has major lateral-force resisting deficiencies,which was also confirmed in the 2025 seismic evaluation. Facility Condition Assessment In 2015,the City conducted a Facility Condition Assessment (FCA)with a consultant team from EMG Corporation of most City-owned facilities to determine the growing deferred maintenance backlog.At that time,there was a perception that the backlog had grown,in large part due to austerity policies enacted during the Great Recession of 2008.The deferred maintenance assessment determined that there was a $7.5 million dollar deferred maintenance backlog for the MSB building for the next 10 years,and the facility had a $25 million replacement cost.At the time,staff believed both figures were low,and did not account for the cost of new construction in the area and seismic upgrades,nor costs borne by municipal projects,such as prevailing wage requirements.This FCA also did not consider building code upgrades necessary with a change in building use. (When a building substantially remodels or the use changes, building code upgrades are often triggered.) Understanding the inventory of deferred maintenance items had grown in the ten years since the 2015 report, which only looked at a term of 10 years out from the report date,and the construction market is immeasurably disparate than it was in 2015,a new Facility Condition Assessment was completed in 2025,included as Attachment 3.The City contracted with Group4 Architecture and Planning (Group4)to lead this effort.Group4 subcontracted with Bureau Veritas,a facility inspection and certification services consultant,and TBD Consultants, a professional cost estimating firm to provide a third-party assessment of the MSB. In September 2024,the consultant team visited the MSB to conduct a visual assessment of the facility.No destructive testing or opening of walls or other facility components was conducted.Preliminary cost estimates produced by Bureau Veritas were then vetted by TBD Consultants,and adjusted for local construction,labor, and material costs. While Facility Condition Assessments provide a reasonably accurate cost estimate,it is possible unforeseen conditions may be experienced during design,construction,and bidding.For this reason,they are considered estimates and may vary from actual expenses. Summary of Findings With their visual assessment complete,Bureau Veritas consultants studied architectural,mechanical,plumbing, and fire/life safety building systems.Not included in the report were costs associated with updated furnishings, City of South San Francisco Printed on 4/25/2025Page 4 of 14 powered by Legistar™7 File #:25-481 Agenda Date:4/29/2025 Version:1 Item #:1. fixtures, technology, and loose equipment (FF&E), nor study of seismic or ADA code deficiencies. Based on approximate current construction costs of $1,200 per square foot of new floor area,and a building area of approximately 120,000 square feet (including subgrade parking,mechanical,electrical,and plumbing (MEP)and storage),consultants estimated that the facility has a current replacement value of $142 million if reconstructed as a like-sized modern replacement facility. Additionally,near-to mid-term deferred maintenance and capital needs to operate the facility for the next 10 years was valued at $41.4 million.For the next 20 years,this sum grows to $44.5 million.It should be noted this estimate did not include soft costs (design,permits,testing,commissioning,or other fees),contingency,or any seismic upgrades,as the seismic evaluation was not completed in time for their report.Generally,it is recommended to include an allowance of 30%of the construction budget for soft costs and contingency.In this case,it would escalate the full project cost by an additional $12.4 -$13.3 million,resulting in a total budget of: $53.8 million for years 0 -10,or $57.8 million for the next 20 years.As noted earlier,seismic work,if warranted, would add another $5.6 - $7.6 million, totaling conservatively $65.4 million over 20 years. According to Bureau Veritas’Facility Condition Index or FCI -a generally accepted formula to assess building condition based on the cost of deferred maintenance divided by the facility’s replacement value,the facility is indexed at near end of life.This is,as mentioned above,not including seismic or certain accessibility related deficiencies not included in their analysis,which would only increase the FCI.It should also be noted that in the report,the “current”time period is 2024,as this is when inspections took place,and many items considered for replacement in the three-year period are due in the current year, 2025. City of South San Francisco Printed on 4/25/2025Page 5 of 14 powered by Legistar™8 File #:25-481 Agenda Date:4/29/2025 Version:1 Item #:1. Source: Municipal Services Building Facility Condition Assessment, Bureau Veritas, 2025. In addition to the Bureau Veritas report,in order to have another data point to reduce the possibility of an outlying cost estimate,a peer cost estimate was conducted by Group4 and TBD Consultants based on per square foot cost estimates.Coupled with information from the seismic study,escalating cost estimates from the City’s ADA Transition Plan,and including typical allowances for FF&E,soft costs,and contingencies,Group4 created two cost estimates:one for updating and opening the entire MSB for public use,and another for opening the portion of the facility formerly operated by the Parks and Recreation Department (Recreation wing) only for public use. These cost models are detailed in Attachments 4 and 5 and summarized below. As noted above,seismic upgrades would be a voluntary effort.It should be noted that as part of this analysis, the most stringent seismic risk category was selected for the full renovation cost,as the intended use following a full renovation is unknown and the seismic risk category may change.By contrast,the model focused on repurposing the Recreation Wing anticipated no seismic work, as that assumed no change of use. Per the Group4 estimates,the full renovation cost with structural updates (assuming Risk Category IV seismic upgrades)would be $73,037,000.While the partial renovation cost of the Recreation Wing only without structural upgrades would cost between $29,380,000 and $35,100,000. In summary,comparing the two estimates,one could reasonably expect an investment of $65 million to $73 million in the next 20 years for the entire facility.In comparison,the new Library |Parks and Recreation Center, which also houses the Library and a new park, and was funded by Measure W, cost $101 million. Operating Cost Analysis City staff performed a cursory cost analysis to approximate what additional costs could be expected if the MSB was to be reopened as a community center site. Some of the assumptions used for this analysis are noted below: ·The City would only operate the former Recreation wing of the facility.Additional costs would be incurred if the former Police Department portion was occupied by City programs,offices,or if leased to a tenant. ·The facility would conservatively operate Monday through Friday,9:00 a.m.-5:00 p.m.with classes, City of South San Francisco Printed on 4/25/2025Page 6 of 14 powered by Legistar™9 File #:25-481 Agenda Date:4/29/2025 Version:1 Item #:1. ·The facility would conservatively operate Monday through Friday,9:00 a.m.-5:00 p.m.with classes, for 20 hours of programming per day throughout various rooms. ·Facility rentals, such as community gatherings, birthdays, and dances would occur on weekends. ·Some fees for classes may be necessary to sustain programs. ·The following staff would be required to deliver programs at a comparable level as other recreation programs: o Recreation and Community Services Program Coordinator: 1 FTE o Administrative Assistant: 1 FTE o Recreation Instructor (hourly): 2.5 FTE o Recreation Leader III - Classes / Class Aide (hourly): 2.0 FTE o Recreation Leader III - Rentals (hourly): 0.80 FTE o Building Maintenance Custodian (day shift): 1 FTE o Building Maintenance Custodian (swing shift): 1 FTE o Senior Building Maintenance Custodian: As needed ·Materials would be needed for programs and maintenance. ·No additional landscape maintenance personnel would be required for the site’s grounds,as the building’s landscape is currently being maintained by the Parks Division as it was prior to closure. Based on these assumptions,staff anticipates,at a minimum,annual operation and maintenance costs to be approximately $1.1 million per year, based on the following: ·On-going Supplies and Services: $253,425 per year ·On-going Personnel Costs: $884,537 per year These ongoing operating costs would be in addition to one-time supplies and services startup costs of $90,000. In this scenario,staff anticipates approximately $170,000 to $300,000 in annual revenues,depending on service models and desired level of subsidy. Environmental Investigation As part of planning for the future of the MSB,in 2021,City staff commissioned a Phase I environmental site assessment (ESA),which is a standard method of assessing the environmental condition of property.The City had information at the time about a City-owned underground diesel fuel tank that had been removed from the property and a chemical plume nearby from the former My Cleaner site at 1053 El Camino Real.Additionally, the relocation of the Police Department to the new station at 1 Chestnut included the decommissioning of the firing range at the MSB.State regulatory requirements for decommissioned firing ranges include testing for lead contamination and subsequent remediation and closure,which was completed by a qualified firm and documented with the County of San Mateo Office of Environmental Health. The initial Phase I ESA recommended an additional Phase II ESA to sample soil and soil vapor below the foundation slab.Subsequently,soil vapor probes were installed under the foundation slab and have been monitored routinely over the past two years to evaluate potential seasonal and temporal variability to confirm City of South San Francisco Printed on 4/25/2025Page 7 of 14 powered by Legistar™10 File #:25-481 Agenda Date:4/29/2025 Version:1 Item #:1. monitored routinely over the past two years to evaluate potential seasonal and temporal variability to confirm consistency in the results.Results from these soil vapor probes have identified volatile organic compounds (VOCs)consistent with prior petroleum uses on the site associated with the automotive repair in the former department store at the Camaritas side of the MSB,as well as chemicals associated with the former My Cleaners abutting the MSB.Monitoring of the soil vapor probes in December 2023,May 2024,and November 2024 found levels of Tetrachloroethene (PCE)above acceptable residential thresholds,but generally below acceptable commercial thresholds with some exceptions.The most recently completed report (November 2024) is included as Attachment 6 and provides a summary of the previous investigations and monitoring. Throughout this testing and monitoring process,the City’s consultant,Ninyo &Moore,has continually assured staff that operating the MSB with its current uses is appropriate while site monitoring continues roughly every six months.While the acceptable limits of certain chemicals including Benzene and PCE exceed the residential threshold and at certain soil vapor probes the commercial thresholds,the reporting limits are extremely conservative and not the same as the levels at which a VOC presents a health threat.They are levels for reporting and screening and are used in the field to identify the presence of VOCs at concentrations that would justify further testing and reporting.Second,the chemicals at issue are in soil below the slab in the underground garage,and that is where the testing occurs.The slab itself acts as a barrier that VOCs would have to get through to interact with people.Put differently,the presence of VOCs in the MSB garage should be even lower than in the sampling areas,if they are present at all.Third,because the MSB garage is open on one end to the outside,there is airflow that would further dilute the concentrations of any VOCs present in the garage itself. Ultimately,the findings do not change whether or not the MSB can be reopened and used consistently with how it has been operated in the past.However,if the site is redeveloped,mitigation and further monitoring will need to occur. Notably,Ninyo &Moore recommends the City share its testing data with County Environmental Health in order to inform the remediation and closure plan for My Cleaners.The City expects to share this data with the County in the days that follow. Alternate Housing Element Opportunity Sites The MSB has been identified as an opportunity site for future housing in the current (and previous version)of the City’s Housing Element.While this does not require that the site is actually developed within the 2023-2031 timeline,it does require permissive zoning standards.The State requires cities to show a yield analysis for each opportunity site -particularly,the number of very-low-,low-,and moderate-income units that are possible. Under this Housing Element’s assumptions,the MSB is nearly two acres and identified as a workforce housing project.With a zoning density of 80 units per acre,this could result in up to 150 units with 56 very-low,56 low and 38 moderate income units. Numerous public comments have recently requested that the City Council consider removing this property from the opportunity sites list.Commenters have suggested this would serve as confirmation that the City is not prioritizing 33 Arroyo Drive for development,which the City Council has indeed stated over the last year of public inquiry.It is possible to remove the site if the City can show the State’s Department of Housing and Community Development (HCD)that an adequate site exists to replace it.Staff has identified a few alternatives,and indicated a potential yield analysis,positive and negative site traits,and any costs associated with amending the City’s General Plan or Zoning to allow high-density residential on the sites.This matrix of City of South San Francisco Printed on 4/25/2025Page 8 of 14 powered by Legistar™11 File #:25-481 Agenda Date:4/29/2025 Version:1 Item #:1. with amending the City’s General Plan or Zoning to allow high-density residential on the sites.This matrix of sites is provided in Attachment 7. None of the alternative sites are ideal due to zoning deficiencies,location,or ownership.The City has greater control over a site it owns,and this fact is prioritized by HCD reviewers when they consider a Housing Element plan amendment.The best option would be the shuttered West Orange Library as a development site.But it would likely require a higher density than the immediately surrounding area to match unit yields on the MSB site.That upzoning and related environmental study could be expensive and cause outcry transference -the change may satisfy Serra Highlands neighbors and upset Avalon residents. Other options include encouraging development on the San Mateo County Courthouse complex,the Bay Area Rapid Transit (BART)parking lots,the closed South San Francisco Unified School District (SSFUSD) Foxridge site,or open space parcels along Skyline Boulevard.All of these identified sites are roughly in the same high resource area of the City,which is also prioritized by HCD reviewers.Put another way,HCD would likely reject a proposal that replaces the MSB with a site in Lindenville or East of US-101,which already has identified opportunity sites and is not considered as highly resourced. DISCUSSION Via this staff report and associated presentation,staff has provided Council with the data requested to inform a decision to reopen and reoccupy the MSB,pursue its redevelopment,or neither.At this point,Council is faced with a substantial decision -should the City pause discussion of the MSB until the City’s budget situation stabilizes (perhaps two to three years)or move forward with either reuse or redevelopment.Reuse,as discussed above,will require substantial financial commitment of the City.Redevelopment will require substantial public subsidy should Council desire the predominant use to be affordable rental or affordable for-sale housing.Given these potential paths forward,staff has three scenarios for Council to consider if it wishes to move forward immediately with expending funds on the MSB site:1)rehabilitate the Recreation Wing and operate as a City facility,2)rehabilitate the Recreation Wing and lease it to a similar user,and 2)redevelop with affordable for- sale or rental housing. Staff does not recommend a full rehabilitation of the MSB including structural upgrades due to the extraordinary cost to improve and operate the facility and therefore that option is not more fully described below. Rehabilitate the Recreation Wing and Operate as a City Facility The most common request staff has heard from the community regarding the MSB,is that the City reopen the building and include programming for seniors.As described above,staff has analyzed what this may cost on an upfront and ongoing basis.To make this scenario a reality,the City would need to invest at minimum $29 million in the building over the next 10 years to operate it at the City’s current standard -clean,safe,and reliable.Ongoing annual operating expenses would total roughly $1.1 million.Staff recommends this level of investment because it would 1)extend the life of the building and 2)deliver a space and program that is consistent with other City facilities and programs.Staff does not recommend short-cutting improvements at the building that could result in hazards to the public,such as leaks from a roof that has exceeded its useful life, City of South San Francisco Printed on 4/25/2025Page 9 of 14 powered by Legistar™12 File #:25-481 Agenda Date:4/29/2025 Version:1 Item #:1. building that could result in hazards to the public,such as leaks from a roof that has exceeded its useful life, improper ventilation,an unreliable elevator,and lack of accessibility modifications for disabled community members. Since the decision was made in 2015 to proceed with the development of the new Police Station,the Library | Parks &Recreation Center,and the new Fire Station 63 to replace the functions at the MSB,the City has not invested substantially in maintaining,updating,or replacing buildings systems such as the roof,HVAC, technology,and fixtures at the MSB.Instead,the City focused resources on bringing online new state-of-the-art facilities.Because of this lack of investment in the MSB over the past decade,the deferred maintenance is substantial. This explains the substantial cost to reopen even just a portion of the building. Assessing Demand for Services Over the past year,the City has expanded senior and multi-generational program offerings at existing Parks and Recreation sites,with additional fee-based programs at various sites,and no-cost programs specifically for seniors at the Teglia Center and Bulos Center,and future increased programming at the universally accessible new pool at Orange Memorial Park opening later this year.Additionally,when the preschool classrooms at the Bulos Center are relocated to a dedicated preschool facility at Westborough Park in Fiscal Year 2027-28,senior programs can continue to expand at the Bulos Center.Given these expansions in senior and multi-generational programming,staff would recommend further investigating how much demand exists for additional senior and multi-generational services and programming prior to investing substantially to reopening the MSB for this purpose. Next Steps Should Council direct staff to proceed with further evaluating reopening the Recreation Wing of the MSB and program it with typical City programs,staff would next identify potential funding sources and begin engaging design and engineering professionals to refine scope and cost proposals for building rehabilitation and modifications.The costs needed to undertake this effort would be borne by those same funding sources that are anticipated to contribute to other new parks and recreation facilities throughout South San Francisco,as well as the new Fire Station 63.These funding sources may include impact fees,General Fund reserve,Measure W revenue,or additional bond issuances supported by Measure W revenue.It is unlikely that a project like this one would be competitive for substantial grant funding. Rehabilitate the Recreation Wing and Lease the MSB to a Similar User Similar to the scenario above,staff anticipates the City would need to invest nearly $29 million in rehabilitating the Recreation Wing sufficiently to lease.While the City could market the property for lease and provide a tenant allowance so that the lessee could complete some of the rehabilitation work,the likely lease revenue would not offset the cost of the necessary repairs and upgrades.Below is a table illustrating three potential lease rates -$2 per square foot per month,which would be near market rent for this space,$1 per square foot per month,which would be a solid below market rent,and $0.50 per square foot,which may be closer to what a likely tenant would be willing to pay for such a large space.At 30,000 square feet,even a $0.50 lease rate would cost $15,000 per month. The calculations in the table assume a 3% escalation year over year. City of South San Francisco Printed on 4/25/2025Page 10 of 14 powered by Legistar™13 File #:25-481 Agenda Date:4/29/2025 Version:1 Item #:1. At these rent rates,the maximum tenant improvement allowance the City could approve over a five-year lease is $3.8 million.That means of the $29 million budget to reoccupy the Recreation Wing,$26 million of that would still need to be borne by the City. Additionally,in order to avoid having to upgrade the seismic infrastructure of the building,the lessee would need to propose a use similar to how the Recreation Wing was previously used -as office space, classrooms/studios, and gathering spaces. This would limit the pool of potential lessees. Assessing Interest in Leasing the MSB Last year,the City released a Request for Proposals for use of the West Orange Library space.It was limited to organizations providing childcare or community services,but it did not elicit a single response.Additionally, there is a glut of office space currently available in South San Francisco given current economic conditions. The City would need to engage a broker to market the site broadly and encourage offers.A typical City solicitation process would be unlikely to yield a paying tenant that could offset some of the rehabilitation costs. Redevelop the MSB Site for Housing The final option staff would like to present to Council is redeveloping the site for housing,which could be fully affordable or market rate with inclusionary affordable housing and include ground floor community serving uses -such as a senior center,community meeting spaces,or similar.As is typical for City solicitations for developers of City-owned properties,the City can prescribe exactly what type of development it is looking for. That might include for-sale housing,rental housing,community space,childcare,open space,or other uses needed by the South San Francisco community.Other deal points that can be prescribed in the solicitation is payment of prevailing wage or using union labor,local hire requirements,or other financial,but not physical requirements of the development.For example,a Request for Qualifications for this site might include a requirement that the property be ground leased and that the selected development team construct a senior center on the ground floor,with senior affordable housing above,paying prevailing wage during the course of construction, and including a local hire provision for the general contractor and larger subcontractors. Several years ago,the City prepared financial analyses for different development scenarios at the MSB.Those were presented to Council on November 2,2021 and July 13,2022 and are included as Attachments 8 and 9. Ultimately,Council did not direct staff to move forward with soliciting a developer for the property or pursuing any of the development types discussed.These analyses,though,are useful in estimating the developmentCity of South San Francisco Printed on 4/25/2025Page 11 of 14 powered by Legistar™14 File #:25-481 Agenda Date:4/29/2025 Version:1 Item #:1. any of the development types discussed.These analyses,though,are useful in estimating the development capacity of the site as well as the land value and potential development costs.The estimated land value identified in 2021 and 2022 was between $5.5 and $10 million,and the total development cost of a 150 unit building on the site roughly $100 million. Staff anticipates that if Council directs staff to proceed with soliciting a market rate developer for the MSB site, with the City’s standard 15%inclusionary housing requirement and only modest community uses on the ground floor,the City would be able to generate a sale price or ground lease payments from the transaction.While economic conditions have changed substantially since 2021/2022,staff believe that the property could reasonably generate a roughly $5 million purchase price or equivalent ground lease terms.However,should Council direct staff to pursue a fully affordable housing development on the site,public subsidy will be required to catalyze that development.This subsidy could come in the form of a discounted or $1 sale or lease price for the land,as well as a predevelopment loan or permanent financing for the project.Staff anticipates the loan would need to be between $5 and $10 million, which can be allocated from dedicated housing funds. Ultimately,given the City’s Regional Housing Needs Allocation and the need to make substantial progress toward providing lower income housing in the eight-year planning period from 2023 through 2031,staff recommends pursuing primarily affordable housing at this site should Council direct staff to pursue its redevelopment. Next Steps Should Council direct staff to pursue housing development on the site,staff would engage an economic consultant to test out new development scenarios to best inform a Council decision as to what housing type and community serving uses the City would like to require as part of a future solicitation.Once this is complete, staff would return to Council to share the results of that analysis and provide a recommendation for how to proceed.Between conducting this additional analysis,returning to Council for additional feedback,and issuing a Request for Qualifications for the site,Council should expect it to take roughly a year to select a development team.Once selected,the development team would move forward with designing and financing the project,and engaging with an environmental consultant to plan for any remediation and ongoing monitoring associated with the detected contamination beneath the MSB. Consideration of Replacing the MSB as a Housing Element Opportunity Site Regardless of whether or not Council directs staff to move forward with the reopening or redevelopment of the MSB,or take no action for a period of time,there is still the matter of whether or not to replace the MSB site as a Housing Element opportunity site.Removing the MSB from the opportunity site list would be a largely symbolic action and is somewhat fraught -the property remains under City Council control and at any point Council could restart operation of the public building with a new community use or direct staff to seek a development partner.Excluding it from the Housing Element does not change what Council can decide to use the property for next and removing it from the Housing Element would raise attention at the State level,where the City is considered a good actor.If a new community use is preferred,the Council should prioritize reuse instead of development,or alternatively direct staff to move forward with a new development that has required ground floor community space to replace the aging MSB.This would not require removing it from the Housing City of South San Francisco Printed on 4/25/2025Page 12 of 14 powered by Legistar™15 File #:25-481 Agenda Date:4/29/2025 Version:1 Item #:1. ground floor community space to replace the aging MSB.This would not require removing it from the Housing Element opportunity sites list. Ultimately,staff does not recommend removing the MSB as a Housing Element opportunity site because of the cost,staff time,and unfavorable attention it would draw from the State.Because removing it from the opportunity sites list does not change what the site can be used for,staff does not believe the symbolic gesture is worth the cost financially or to the City’s reputation as a Prohousing jurisdiction. CONCLUSION The information presented with this report reflects the efforts of several departments and divisions,including Capital Projects,Engineering,Facilities,Fire,Planning,and Economic Development,and the engagement of highly specialized consultants.Further professional study would be required to refine cost and potential revenue values;however,staff believe that the level of analysis provided is sufficient to provide preliminary estimates of the immediate,short term,and long-range investment that would be required to keep the MSB in the City’s portfolio of active civic assets. As the City Council is aware,like many other cities in the Bay Area,South San Francisco is experiencing a structural budget deficit in which expenditures are escalating more rapidly than revenues,and the State of California will likely withhold significant property tax in-lieu of Vehicle License Fees (VLF).The Finance Department is working diligently to prepare the City’s budget for FY 2025-26,which will include the staffing and operation of the new Aquatics Center at Orange Memorial Park beginning in 2026.A draft budget will be presented to the Budget Subcommittee in May,and although not yet finalized,there will be a significant shortfall. Continuing to provide the current level of services to the community,plus the added cost of operating the new Aquatics Center,will require a combination of expenditure savings and the use of the City’s limited reserves to close the shortfall.If the decision is made to reopen the MSB,there would need to be reductions in other services to cover the anticipated costs.Such budget trade-offs would warrant public input from residents potentially impacted by proposed service reductions.At this juncture,staff seeks Council direction on whether or not to pause discussion of the MSB until the City’s budget position improves or pursue its reopening or redevelopment. Attachments: 1)Memorandum Regarding Replacement of Fire Station 63 2)Seismic Study 3)Facility Condition Assessment 4)Cost Estimate for Full Rehabilitation and Seismic Upgrade 5)Cost Estimate for Recreation Wing Rehabilitation 6)Environmental Monitoring Report 7)Alternative Housing Element Opportunity Sites 8)November 2, 2021 Staff Report Regarding Development Scenarios for the MSB City of South San Francisco Printed on 4/25/2025Page 13 of 14 powered by Legistar™16 File #:25-481 Agenda Date:4/29/2025 Version:1 Item #:1. 9)July 13, 2022 Staff Report Regarding Social Housing Development Scenarios for the MSB 10)August 28, 2024 Staff Report Regarding Consulting Services for Public Input for MSB 11)Presentation City of South San Francisco Printed on 4/25/2025Page 14 of 14 powered by Legistar™17 CITY OF SOUTH SAN FRANCISCO INTEROFFICE MEMORANDUM DATE: April 29, 2025 TO: Mayor Eddie, Vice Mayor Addiego, and Councilmembers FROM: Jake Gilchrist, Director of Capital Projects and Matt Samson, Fire Chief SUBJECT: Memorandum Regarding Replacement of Fire Station 63 BACKGROUND The original Fire Station 63 opened in 1950 in response to the growth and development westwardly as the City increased its residential housing stock, creating the neighborhoods of Buri Buri, Sierra Highlands, and Brentwood. The City’s third fire station opened as a substation at 1165 El Camino Real and housed two firefighters until 1957 when daily station staffing was increased to three firefighters to meet an increasing call volume due to residential development. The building served as Fire Station 63 until the late 1970s when it moved, along with Fire Administration, into the newly purchased Municipal Services Building (MSB). It remains standing and functioning today as a preschool, retaining its flagpole and traditional red lights on either side of its garage (shown below). Prior to the MSB move, space constraints were quickly identified with the addition of the third firefighter and need to store reserve apparatus, additional tools, equipment, and disaster supplies. This same space constraint was also occurring at Central Fire Station - 201 Baden Avenue. To address the Fire Department’s need for additional space, as well as the Police Department’s need for a more suitable facility than 315 Maple Avenue, a public safety bond measure was placed on the June 1974 ballot to finance the construction of an 81,000 square foot public safety complex at Grand Avenue and Chestnut Avenue. The proposed complex would have housed Fire Station 63, Fire Administration, and the Police Department. The bond measure narrowly failed, and City Council then attempted to move forward with a bond sale to finance the project. This effort was immediately met with a lawsuit and the bond sale was rescinded. In response to the need for additional space for the City’s Public Safety Departments, Fire Station 63, Fire Administration, and the Police Department were relocated to the newly acquired Value Giant Department Store that quickly became the MSB. While the office space for Fire Administration provided an adequate 18 Memo to Council – FS 63 April 29, 2025 Page 2 of 9 working environment, the repurposed vehicle service shop where Station 63 was relocated to presented significant operational constraints, including apparatus height restrictions. This location was presented as temporary while a permanent and more adequately sized location could be identified. Initially, storage was not an issue, but this changed in 1997 with the addition of a second paramedic ambulance placed into service. This ambulance is assigned to Station 63 and is staffed with two paramedic firefighters, increasing the staffing for Station 63 from three to five. As the building was not designed as a fire station, efforts were made to provide the functionality needed for continuous occupancy. With space at a premium, areas of the building were undersized, including the office, bathrooms, and equipment storage. The apparatus bay height was much lower than other fire stations, as it was not designed for large commercial vehicles. Fire engines were modified to avoid colliding with the station’s exterior when backing into the apparatus bay. Even as the station’s space was maximized, it was not able to support future needs, such as: • Gender specific restrooms • Individual sleeping rooms • Specialized washing machines to launder firefighting coats and pants • Dedicated storage for personnel protective equipment • Adequately sized in-station exercise area • Storage for medical and firefighting equipment • Modern (and taller) fire engines • Drive-through apparatus bays • Publicly accessible bathroom The new location did provide an operational benefit by remaining in the same general location as the original fire station. Fire station locations in South San Francisco remain strategically located to provide equitable coverage city-wide. This is measured by response times and maintaining Fire Station 63 in its general location allows for appropriate coverage in the Buri Buri, Sierra Highlands, and Winston Manor neighborhoods, as well as the areas adjacent to both El Camino and Baden High Schools. Fire Station 63’s operational constraints were identified in the early 1990s and attempts to address them had fallen short due to financial constraints and the need to perform a complete remodel of the building to modernize the facility to a level that supported current and future functionality. The operational constraints fell into four general categories: 1. Seismic stability of the fire station and adjoining components of the MSB 2. Size/Space/Functionality 3. Support Systems (HVAC, Water, Emergency Generator) 4. Health of living space The fire station was susceptible to damage and possible collapse after a seismic event based on its age and building construction type. Structural engineers identified the risk of ceiling collapse and exterior wall collapse resulting from a significant seismic event. The vulnerability focused on the building’s exterior wall design, specifically at the attachment points of the walls to the roof, and the design of the ceiling throughout the fire station. Damage to these areas could have prevented personnel from moving the engine and ambulance out of the apparatus bay and potentially trapping firefighters inside the living quarters. 19 Memo to Council – FS 63 April 29, 2025 Page 3 of 9 The limited station footprint does not meet the needs and requirements of a modern fire station. The station’s garage consists of two single deep bays that can only house two vehicles (one engine and one ambulance). This limitation prohibits the storage of additional apparatus at Fire Station 63, requiring other fire stations to house all reserve and support vehicles. With finite storage at the other four fire stations, numerous (2 engines, 2 ambulances, 3 support vehicles) vehicles are stored outside a nd deteriorate at a faster rate due to weather exposure. The apparatus bay design requires both assigned units to back into the station in an area that is constrained by access and a narrow alley dock. With the addition of two paramedic firefighters daily, space at the station became more limited. This constraint was compounded by the need for a dedicated classroom style space to provide department training. Fire Station 63 had a room that could facilitate classroom training but was in use as the exercise area. The exercise area was removed to create a dedicated training space and Fire Department staff partnered with Police Department staff to share their exercise facility in the police station. The original bathroom design created an open space without the ability to maintain privacy. The two showers were directly across from each other and one common locker room was adjacent. This design did not provide for gender specific areas and could not support cohabitation of female and male firefighters. The station’s sleeping area was also common with six-foot dividers between the beds, without doors and the ability to maintain privacy while sleeping or changing clothing. Office space was also limited and only provided workspace for two of the five crew members. With the increase in reporting requirements and online training, two workspaces impacted the ability of crews to complete assignments and reports in a timely manner. Like the space limitations for storage of reserve apparatus and support vehicles, the ability to store additional medical and firefighting equipment, including specialized support equipment, was minimal at best. Medical supplies and personal protective equipment were stored in the apparatus bay, continuously exposed to vehicle exhaust and the outdoor environment. No additional equipment, such as reserve fire hose, reserve ladders, and power tools could be stored at Fire Station 63 due to lack of space. This further stressed our other four stations’ storage capacity, already taxed with supporting equipment such as specialized personal protective equipment washing machines and dryers and refilling systems for self - contained breathing apparatus bottles. As part of the MSB, Fire Station 63 was completely dependent on the building’s mechanical systems to operate. This includes Heating and Ventilation (HVAC), hot water, and emergency generator power supply. As critical infrastructure, the Fire Station must be able to maintain these services during a disaster that has resulted in interruption of utilities. Maintaining an MSB-wide mechanical system is more complicated than a system(s) specific to the fire station. When upgrades or replacements are needed, the cost and complication are further compounded. The station has remained in operation at its current location since 1979, closing twice for unhealthy living conditions and a third time for both unhealthy living conditions and to facilitate its remodel in 2010. The living quarters experienced chronic water intrusion from the exterior planter boxes along Arroyo Drive, the lexan windows lining the front of the fire station, and in 2005 from a faulty holding cell toilet located above the classroom. The water leak from the toilet caused the ceiling and ventilation system in the rear classroom to fall in. The station was uninhabitable for four months to facilitate water damage repairs, carpet replacement, repaint walls, drywall damage, and equipment damage. Mold was also identified and 20 Memo to Council – FS 63 April 29, 2025 Page 4 of 9 remediation work was completed prior to reoccupying the station. Both assigned units were relocated to fire stations 64 and 65 while the station was closed. An additional chronic health issue, that resulted in a prolonged station closure in 2007, was the intrusion of carbon monoxide from the police parking area into the fire station at numerous locations. Mold concerns were also brought up, but numerous professional tests were completed by third party consultants that did not identify hazardous levels in the living spaces. Both assigned units were again dispersed to fire stations 64 and 65 while repair work was completed to prohibit carbon monoxide infiltration into the station. When these units were relocated, response times into the core coverage areas of Fire Station were increased up to three minutes. The relocation also negatively impacted station 61 and 65’s reliability as Engine 63 was out of position to support those two districts. As an added layer of safety, multiple commercial grade air filters were installed in the station’s living areas that operated continuously to lower carbon monoxide levels and filter any potential air contaminants. In late 2009, the station was again vacated due to health concerns regarding air quality from both mold and carbon monoxide. At the same time, the department was notified of a grant award to rehabilitate the fire station and construction would begin in 2010. The decision was made to vacate the station in advance of the construction work and crews returned in November of 2012 once the remodel work was complete. GRANT FUNDED REMODEL 2010 As part of the American Recovery and Reinvestment Act (ARRA) of 2009, the Federal Emergency Management Agency (FEMA) awarded fire station remodel and construction grants to fire departments throughout the United States. Approximately 150 departments were awarded with South San Francisco receiving one of them. The grant parameters were specific for remodel projects and did not allow for work to be performed outside of the original building’s footprint. This restriction prohibited us from using funding to rehabilitate other areas of the MSB, including seismic work outside of the fire station’s footprint. The ARRA grant provided critical funding needed to rehabilitate, modernize, seismically stabilize, and remediate the building to allow for continuous use as a fire station. Without this funding, the life span of Fire Station 63 was unclear due to the frequency of recent closures for health reasons. This is in addition to a seismic event that could have caused significant damage to the building and harmed firefighters and their apparatus. The intention of submitting an application was to secure funding to ad dress these concerns, as well as provide funding to address modernization challenges prohibiting us from providing a female - friendly working environment. This was done to maintain a functional firehouse, capable of operating for the foreseeable future, while an appropriate and permanent replacement could be identified and constructed. The ARRA grant funded critical seismic upgrades to the fire station’s ceiling, exterior walls, and apparatus bay. Based on the MSB’s age, it was recommended, through a seismic study, to further expand the seismic retrofit work to capture a much larger portion of the MSB as it would provide additional protection for the station and surrounding areas. Due to the grant’s restrictions, this was not possible, as work outside of the station’s footprint was not allowable. The work performed did strengthen the apparatus bay and provided a much higher level of protection with the intent of accessing the engine and ambulance post-earthquake. The work also allowed for a raised apparatus bay ceiling, providing access for any of our department’s engines and ambulances. 21 Memo to Council – FS 63 April 29, 2025 Page 5 of 9 Working within the constrained building footprint, the remodel efforts were able to address some of the fire station’s significant operational challenges. In addition to the seismic work and apparatus bay height work, benefits from the grant included: • The carbon monoxide intrusion was addressed through the repair work performed on the station wall separating the MSB underground parking garage. • The lexan windows were replaced with glass, eliminating the water intrusion into the living space during rainstorms. • Five individual bedrooms were created. • Two full bathrooms replaced the one large, or common, bathroom. • A second office was created to allow for three additional workspaces as well as a dedicated captain’s office. • Dedicated personal protective equipment storage with adequate air circulation and protection from apparatus bay exhaust. • Dedicated medical equipment storage with adequate air circulation and protection from apparatus bay exhaust. • Dedicated, publicly accessible bathroom. • Space for specialized washing equipment to launder personal protective equipment. • Dedicated area to clean medical equipment exposed to biohazards. These additions provided an immediate benefit and allowed the department to reoccupy the station and support a modern workforce. The remodel work provided for a healthy work environment but did not address many of the underlying operational constraints needed to meet current and future demands. The ARRA funding essentially bought the department time, allowing us to continue operating Fire Station 63 in its current location, while an appropriate and permanent replacement could be identified and constructed. Critical items that were unable to be addressed with the grant funding, and continue to restrict us today, include: • Adequate apparatus storage to allow for in-station parking of two reserve apparatus. • Creation of a decontamination corridor that greatly reduces hazardous materials from entering into the fire station’s living area. • Storage to support additional firefighting equipment, disaster supplies, and surplus food and water. • Drive-through apparatus bays to eliminate backing vehicles into a tight alley dock and then into a station. • Dedicated in-station exercise area. • Support for additional firefighters as the station supports paramedic trainees, newly hired firefighter paramedics who are under evaluation, and upstaffing during periods of high call volume or large- scale disasters. • Sleeping quarters with two exit options (remodeled station, due to size constraints, does not allow for windows in the dorms). • Space for SCBA filling equipment. • Future regulatory requirements for equipment, standards, and practices. With the grant restriction for funds limited to the building’s footprint, we were also unable to address the need to separate the supporting systems from the MSB. The station remains dependent on the MSB’s HVAC and water heater systems as well as its emergency generator. The later item will need to be replaced soon due to its age, failure rate, and difficulty in sourcing parts when needed for repair. 22 Memo to Council – FS 63 April 29, 2025 Page 6 of 9 FIRE STATION COMPARISON – South San Francisco and Recent Local Fire Station Builds Fire Station 63 is one of five fire stations in South San Francisco. A map identifying all five fire stations in South San Francisco is shown below with Station 63 circled in red: While each station operates somewhat independently on emergency responses, they all provide support for the department’s overall operations. Each of the five, less Fire Station 63, is able to support various aspects of the department’s mission. An example of this is the housing of our Urban Search and Rescue Vehicle at Fire Station 65. That station is responsible for the vehicle, its equipment, and response. Due to its size and storage constraints, Fire Station 63 is unable to support in the same way as the other four stations, adding additional stress to them. For comparison, square footage per assigned personnel for each of the department’s five fire stations shows the constraints we experience with Fire Station 63: 23 Memo to Council – FS 63 April 29, 2025 Page 7 of 9 For further comparison, recently constructed fire stations throughout the Bay Area were evaluated to determine if the current size of Fire Station 63 was adequate based on other fire agencies’ specifications. These fire stations house three firefighters and the chart has not been altered to show square footage by personnel, just total overall size: OPERATIONAL IMPACT – FIRE STATION 63 Fire Station 63 provides first due response to the Northern El Camino Real Corridor from the Colma/Daly City border down to South Spruce Avenue. Its full primary response area is shown below in green: 24 Memo to Council – FS 63 April 29, 2025 Page 8 of 9 This station is regularly the busiest in South San Francisco. This trend has not changed, even with the growth occurring along the Eastern side of the City. Call volume regularly exceeds 3,000 incidents between the units assigned, Engine 63 and Rescue 63. This level of call volume places additional stress on the station, something that can be reduced with a facility that can adequately support this level of demand. The map below shows 12 months (from calendar year 2024) of call data and location in South San Francisco as displayed in a “heat-map” format. The two areas of high call concentration along the Westborough and El Camino Real corridors drive the demand for Fire Station 63: CURRENT STATUS - Fire Station 63 Replacement The need to identify a more appropriate Fire Station 63 has been studied numerous times beginning in 1991 as the current location was never intended as a long-term solution for the facility. Geographically, the station is well positioned as its current location is located on the Westside of El Camino Real. A majority of the calls occurring in Fire Station 63’s district are West of El Camino Real, significantly reducing the number of occurrences when responding apparatus cross one of the busiest streets and intersections in South San Francisco. This reduces response times into the Buri Buri, Sierra Highlands, and Winston Manor neighborhoods. From these efforts, a viable new location was identified, directly across from the current fire station’s driveway. The property at 71 Camaritas Avenue provides ample size to house an adequate fire station. While it does come with some site restrictions, due diligence was performed, including architecturally generated conceptual drawings, to confirm that the site is able to offer ample programmatic space to meet the department’s current and future needs. The property was purchased by the City and remains available when funding is allocated to start construction of the replacement fire station. Monies allocated from a developer agreement have also been set aside to offset construction costs. Currently, nine million dollars has been collected from a developer with the possibility of additional funding should additional development occur. An additional benefit of constructing Fire Station 63’s replacement at 71 Camaritas Avenue includes the ability to maintain the current fire station while the new facility is built. As call volume has increased, 25 Memo to Council – FS 63 April 29, 2025 Page 9 of 9 relocating both the engine and ambulance assigned to Fire Station 63 would have a negative impact on response times for an extended amount of time due to construction timelines. We would anticipate an increase in response times of three minutes within the core of Fire Station 63’s primary response area. To address the increase in response times, it would be prudent to provide temporary quarters for the station in close proximity to its current location. Temporary quarters would add additional costs to the project and would be required for one to two years based on the amount of work need to rehabilitate, modernize, and expand the station in its current location. Rehabilitation work would still not be able to address the apparatus storage issues. In 2018, as part of the overall Community Civic Campus planning, staff completed a design development package for Fire Station 63 and then paused the project to develop a funding strategy for construction. At the time, the site for Station 63 was imagined to be the northwest corner of the MSB property at Camaritas Avenue and Arroyo Drive. In late 2020, staff learned that the property across the street at 71 Camaritas Avenue was on the market. While Economic and Community Development staff negotiated with th e property owner, the Capital Projects team worked with the Fire Station architects to confirm that the 71 Camaritas site was an appropriate location, including an Engineering Review with the SF Public Utilities Commission, which holds an easement on the back side of the property. City Council approved the purchase of 71 Camaritas Avenue at the July 28, 2021 meeting. Currently, planning and design for Fire Station 63 is poised to restart this Spring. The project is expected to cost in excess of $36 million due to inflation and current market volatility created by the recent implementation of new trade tariffs. Staff expects to advertise the construction project for bid in Summer 2026 and construction will take approximately 2 years, with the move into the new Station 63 at 71 Camaritas Avenue to be completed by the end of 2028. Attachment 2 Seismic Study: Biggs Cardosa Associates Structural Engineers Report dated 4.29.10 26 ASCE 41 Tier 1 Seismic Evaluation Municipal Services Building South San Francisco, California FINAL REPORT Prepared For: City of South San Francisco 315 Maple Ave South San Francisco, California Prepared By: Biggs Cardosa Associates, Inc. 865 The Alameda San Jose, California April 23, 2025 BCA Job No. 2020264H 27 City of South San Francisco Final Report April 23, 2025 Tier 1 Seismic Evaluation Municipal Services Building Page ii TABLE OF CONTENTS EXECUTIVE SUMMARY.......................................................................................................1 PROJECT OVERVIEW............................................................................................................5 AVAILABLE DOCUMENTS...................................................................................................6 BUILDING DESCRIPTION.....................................................................................................6 FIELD OBSERVATION...........................................................................................................8 SEISMIC EVALUATION AND FINDINGS...........................................................................9 Evaluation Basis ....................................................................................................................9 Seismic Evaluation Results..................................................................................................12 SEISMIC RETROFIT RECOMMENDATIONS....................................................................14 COST ESTIMATE ..................................................................................................................15 RECOMMENDED FURTHER ACTIONS ............................................................................16 APPENDICES Appendix 1 Conceptual Seismic Retrofit Plans Appendix 2 ASCE 41 Tier 1 Checklists 28 City of South San Francisco Final Report April 23, 2025 Tier 1 Seismic Evaluation Risk Category II, III, and IV Municipal Services Building Page 1 EXECUTIVE SUMMARY The purpose of the preliminary seismic evaluation described in this report is to determine whether the lateral load-resisting system of the Municipal Services Building (MSB) complies with the seismic performance requirements for CBC Seismic Risk Categories II, III, and IV, and if not, determine which lateral system elements are potentially deficient, provide qualitative recommendations for the required seismic strengthening and develop a rough- order-of-magnitude (ROM) conceptual-level construction cost estimate. The method used to evaluate the building for the three Risk Categories was the Tier 1 procedure per ASCE 41-17. The MSB is a 2-story concrete tilt-up wall structure with a wood-framed roof, a cast-in- place/precast concrete-framed second floor, a slab-on-grade first floor, and a shallow spread- footing foundation system. It has concrete walls at its perimeter and numerous plywood- sheathed, wood-framed walls at the second floor. The overall plan dimensions are approximately 169’ x 363’ at its footprint and 158’ x 363’ at the second floor. The building was originally designed and constructed in 1969 as a retail store. It was subsequently purchased by the City. In 1979, the building was upgraded and remodeled to serve as the Municipal Services Building. The 1979 seismic upgrade was designed per the Uniform Building Code (UBC) using seismic loads based on Seismic Zone 4 and an Importance Factor, I = 1.5, which is applicable to buildings that are Essential Facilities. A voluntary, partial seismic retrofit was completed for the small fire station area of the building in 2011 to achieve compliance with the then-current seismic codes/standards. Horizontal elements of the building’s lateral load-resisting system comprise of the plywood roof diaphragm and second floor concrete-slab diaphragm. Vertical elements of the lateral system consist of shear walls: a combination of interior plywood-sheathed walls and the exterior concrete walls at perimeter of the building at the second story and exterior concrete walls and one interior concrete wall at the first story. The roof and second floor diaphragms deliver the lateral loads to the shear walls, which transfer then to the underlying/surrounding soil via the foundation system. Per ASCE 41, the Tier 1 procedure is intended to quickly identify potential deficiencies in a building’s lateral load-resisting system via use of a series of Checklists. Based on the results of the Tier 1 evaluation and our experience with buildings of similar size, age and construction type, it is our opinion that the existing Municipal Services Building has significant potential deficiencies in its lateral force-resisting system, and therefore, does not meet the seismic performance requirements for any of the three Risk Categories based on the ASCE 41-17 seismic design criteria. Based on the findings of this preliminary seismic evaluation, the following structural/seismic elements are potentially deficient: 29 City of South San Francisco Final Report April 23, 2025 Tier 1 Seismic Evaluation Risk Category II, III, and IV Municipal Services Building Page 2 1. Concrete wall anchorage system to the roof and second floor diaphragms (anchors, crossties, and sub-diaphragms) to resist out-of-plane wall loads. 2. In-plane shear capacity of the roof and second floor diaphragms. 3. Connections for in-plane shear transfer from roof and second floor diaphragms to the exterior concrete walls. 4. Plywood shear walls between the roof and second floor are discontinuous below the second floor. The walls are potentially deficient in their in-plane shear and uplift capacities. The threaded holdown rods do not have washers/bearing plates at the concrete beams below the second floor, a condition that potentially limits their effectiveness for resisting overturning loads. 5. The west (Arroyo, Gridline B) concrete wall below the roof and the south (Fire Station, Gridline 12) concrete wall below the roof are not continuous below the second floor (out-of-plane horizontal offset). 6. Precast concrete wall panels are attached to the foundation via welded embed plates (vs. embedded rebar dowels). 7. The exterior concrete wall panels do not have adequate out-of-plane flexural strength. 8. The exterior concrete wall panels do not have adequate in-plane shear strength. The proposed seismic retrofit work to remedy the potential deficiencies outlined above is depicted conceptually in the sketches included in Appendix 1. The ROM conceptual-level construction costs, determined using historical construction cost data for similar buildings, to strengthen the existing MSB to the current seismic code/standards based on this preliminary evaluation are as below: Risk Category II $5,575,000 Risk Category III $6,500,000 Risk Category IV $7,575,000 It should be noted that these estimated costs are preliminary and have been developed based on limited structural information and preliminary analytical work as required by the ASCE 41 Tier 1 methodology; the actual construction cost could vary substantially. Recommended Further Actions The findings of our preliminary seismic evaluation based on the ASCE 41-17 Tier 1 procedure indicate that the Municipal Services Building has significant potential seismic deficiencies and does not comply with its seismic resistance requirements. We recommend that the City select one of the following two options for the building. 30 City of South San Francisco Final Report April 23, 2025 Tier 1 Seismic Evaluation Risk Category II, III, and IV Municipal Services Building Page 3 Option 1 – Perform Voluntary Seismic Upgrade to Comply with Current Building Code If the City elects to upgrade the MSB to the current seismic code/standards in order to improve its potential performance during a major seismic event, we recommend the following further steps to implement a voluntary seismic retrofit program for the building. These steps will help define fully the scope of required seismic retrofit work and the associated construction costs: 1. Perform a more detailed ASCE 41 Tier 2 Deficiency-Based Seismic Evaluation of the building, based on the Risk Category selected by the City, to fully define the building’s seismic retrofit needs. 2. Using the seismic deficiencies identified and verified via the Tier 2 evaluation, develop at least one conceptual seismic retrofit scheme to remedy those deficiencies. 3. Prepare sketches for the proposed seismic retrofit scheme(s) to indicate the nature and extent of required seismic retrofit work. 4. Prepare a more detailed estimate of the probable construction costs. This estimate should be prepared by a third-party professional cost estimating firm. After approval of the proposed seismic retrofit work and its anticipated costs by the City, the project would then proceed to the final design phase in order to prepare the construction documents. Option 2 – Use MSB for Any Permissible Occupancy without Seismic Retrofit The as-built structural drawings for the seismic upgrade work performed in 1979 indicate that the entire Municipal Services Building was retrofitted to comply with the Essential Facility requirements of the Uniform Building Code in effect at that time. Given this, it is our opinion that the City may choose to use the MSB for any permissible occupancy type without any requirement to seismically retrofit the overall building per the current building code as long as any structural modifications or non-structural renovations that may be undertaken for the selected building use/occupancy do not exceed the various thresholds in the building code or adopted by the City of South San Francisco Building Department (SSFBD). In the event at least one of these thresholds is exceeded, a mandatory seismic evaluation and retrofit (if required) of the overall building, per the current building code, is triggered. If the City elects to use the MSB essentially “as is” with only minor structural modifications and/or limited non-structural renovation required for the selected use/occupancy that do not trigger a mandatory seismic evaluation/retrofit of the overall building, we recommend undertaking the following further steps: 31 City of South San Francisco Final Report April 23, 2025 Tier 1 Seismic Evaluation Risk Category II, III, and IV Municipal Services Building Page 4 1. Confirm with SSFBD that the 1979 seismic retrofit work was indeed permitted to upgrade the building to an Essential Facility and that the work was fully implemented during construction. 2. Consult with SSFBD to determine the thresholds for all applicable triggers (structural modifications, non-structural renovation, etc.) that, if exceeded, would require seismic evaluation and, possibly, retrofit of the overall building per the current building code. 3. Modify/renovate the building per requirements of the selected use/occupancy while ensuring that none of the applicable trigger thresholds is exceeded. 32 City of South San Francisco Final Report April 23, 2025 Tier 1 Seismic Evaluation Risk Category II, III, and IV Municipal Services Building Page 5 PROJECT OVERVIEW Biggs Cardosa Associates has been retained by the City of South San Francisco to provide a Tier 1 seismic assessment and conceptual seismic retrofit recommendations for the Municipal Services Building (MSB) located at 33 Arroyo Drive, South San Francisco, California. The seismic assessment was performed for Risk Categories II, III and IV using the Tier 1 methodology in ASCE 41-17. The Tier 1 methodology in ASCE 41 is used to quickly identify potential lateral system deficiencies based on a series of Checklists. The procedure is intended to screen a large number of buildings quickly in order to identify potential seismic risk to each structure, prioritize the structures based on potential seismic risk, and select potentially high-risk structures for further, more-detailed evaluation and upgrade them, as required, to comply with the current seismic codes and standards, if desired. This report contains the structural/seismic findings based on our Tier 1 assessment, our limited field observation of the existing structural conditions, and our experience with buildings of similar size, age and construction type. Potential seismic deficiencies are identified and conceptual recommendations are outlined for remedial work. A rough-order- of-magnitude (ROM) conceptual-level cost estimate is provided for the seismic retrofit work anticipated for each Rick Category. The findings and recommendations outlined in this report pertain only to the existing building’s lateral load-resisting system. The assessment does not cover seismic anchorage and/or bracing of non-structural items such as electrical/mechanical equipment, ceilings, partitions, or other architectural elements. Further, an assessment of other building systems/features such as mechanical, electrical, plumbing, fire protection, accessibility, egress, drainage, waterproofing, etc. is beyond the scope of this report. The scope of our services for the structural/seismic assessment described in this report is summarized below: 1. Review available as-built structural drawings and calculations for original design and subsequent additions/modifications, previous seismic assessment reports, geotechnical reports, etc. for the building. 2. Perform a site visit to observe the general physical condition of the building and to verify general conformance of in-place construction with as-built structural drawings. Building finishes will not be disturbed during the site visit and our observation will be limited to the readily visible structural elements. 3. Prepare calculations necessary for completing the structural checklists required by the ASCE 41 Tier 1 seismic evaluation methodology. 4. Complete applicable structural checklists for ASCE 41 Tier 1 seismic evaluation. 33 City of South San Francisco Final Report April 23, 2025 Tier 1 Seismic Evaluation Risk Category II, III, and IV Municipal Services Building Page 6 5. Identify potential structural/seismic deficiencies in the building’s lateral system based on our field observations and the Tier 1 seismic assessment. 6. Prepare qualitative recommendations for the retrofit work required to alleviate the identified potential seismic deficiencies. 7. Prepare a ROM conceptual-level cost estimate for the proposed seismic retrofit work based on historical seismic retrofit cost data for similar buildings. 8. Prepare a brief report describing the findings of structural/seismic assessment and a conceptual construction cost estimate to remedy the identified seismic deficiencies. AVAILABLE DOCUMENTS The following documents were available for our review for this seismic assessment: •Original building structural drawings, “Department Store for U.S.E. South San Francisco” by David Alan Welisch, dated November 4, 1968. •Seismic upgrade and tenant improvement structural drawings of “South San Francisco Municipal Services Building” by Robinson Meier Juilly and Associates, dated January 21, 1980. •Structural drawings for City of South San Francisco Fire Station #63 voluntary partial seismic retrofit, by Biggs Cardosa Associates, dated April 8, 2011. •Soils report titled “Foundation Investigation-Proposed Department Store Building: Arroyo Drive and El Camino Real, South San Franscico, CA for U.S.E. Stores” by Dames & Moore, Consulting Engineers, dated September 4, 1968. •Letter and site notes regarding additional soils information for the same site by Dames & Moore, dated February 14, 1980. •Structural calculations (32 pages) for the U.S.E. Store, by David Alan Welisch- Structural Engineers, dated 1969. •Structural calculations for S.S.F. Muni Services Building, by Robinson.Meier.Juilly & Associates-Structural Engineers, dated 1979. BUILDING DESCRIPTION The Municipal Services Building (MSB) is located at 33 Arroyo Drive in South San Francisco, California. Until recently, the building was used as the South San Francisco City Hall. The second floor (located at Arroyo Drive street-level) housed the City government offices, including the Police Department, while the first floor served as a parking garage and housed the Fire Department in a small area (30’ x 123’) at the building’s south end. Except for the Fire Department, all building functions were recently moved to the new City 34 City of South San Francisco Final Report April 23, 2025 Tier 1 Seismic Evaluation Risk Category II, III, and IV Municipal Services Building Page 7 government complex nearby, located on northside of El Camino Real; the Fire Department is expected to be relocated in the near future. The MSB is therefore currently vacant, except for the small area used by the Fire Department. The MSB is a 2-story concrete tilt-up wall structure with a wood-framed roof, a cast-in- place/precast concrete-framed second floor, a slab-on-grade first floor, and a shallow spread- footing foundation system. The overall plan dimensions at its footprint (the lower level) are approximately 169’ x 363’ while the upper level dimensions are approximately 158’ x 363’. Until the building was vacated recently, the lower level was used as a parking garage and the upper floor housed offices, community rooms, and restrooms. An out-of-use firing range is also located in the former police department area of the garage. The building was originally designed and constructed in 1969 as a retail store. It was subsequently purchased by the City (purchase date unknown). In 1979, the building was upgraded and remodeled to serve as the Municipal Services Building. The 1979 seismic upgrade was designed for seismic loads based on Seismic Zone 4 and an Importance Factor, I = 1.5. Per the 1979 UBC, Seismic Zone 4 was a seismic zone for coastal California and I = 1.5 was the Importance Factor for an Essential Facility. A voluntary, partial seismic retrofit was completed for the small fire station area of the building in 2011 to achieve compliance with the then-current seismic codes/standards, with the understanding and City’s expectation that the overall building would also be voluntarily upgraded per the current seismic codes/standards in the near future in order to ensure improved building performance during a seismic event. It should be noted that while the building was seismically upgraded in 1979 to the then- applicable seismic standards for Essential Facilities, it is highly improbable that the building in its current configuration would meet current code requirements for a Risk Category IV structure (equivalent to Essential Facility) or for Risk Categories II and III. This is because seismic requirements in the building codes have changed significantly since 1979, with the current building codes being significantly more stringent. For reference purposes, this report uses the following conventions when discussing the building orientation: Direction Street Building Gridline North side El Camino Real Gridline 1 South side Camaritas Ave (Fire Station) Gridline 12 West side Arroyo Drive (Front/Main Entrance) Gridline A East side Rear side Gridline F See building plans in Appendix 1 for gridline numbering. 35 City of South San Francisco Final Report April 23, 2025 Tier 1 Seismic Evaluation Risk Category II, III, and IV Municipal Services Building Page 8 Vertical (Gravity) Load-Resisting System The roof level framing consists of plywood sheathing over sawn lumber joists (east-west direction) supported by glulam beams (north-south direction) and glulam girders (east-west direction). The glulam girders are supported on interior steel pipe columns and the west and east exterior concrete walls. The second floor (the upper level) consists of a concrete topping slab over precast concrete joists (east-west direction) which span between precast concrete girders (north-south direction). The girders are supported by interior concrete columns and the exterior concrete walls. The interior columns are supported by isolated spread footings while the concrete walls are supported by continuous spread footings. The ground floor slab of the parking garage is a concrete slab-on-grade. It should be noted that at the south (Fire Station) side of the building, the exterior concrete wall between the roof and second floor is offset approximately 30 feet south of the concrete wall which occurs at the second to first floor. Because of the site grading, the concrete wall (on gridline A) at the parking garage level at the front (west side) of the building is a retaining wall and is offset horizontally by 11’-6” from the concrete wall above (on gridline B). The upper level exterior concrete wall (on gridline B) on this side of the building is supported on a line of precast concrete girders and concrete columns below, a condition that creates a discontinuous shear wall system at gridline B. A cast-in-place concrete slab spans between the precast girders and the front basement (lower level) retaining wall. This exterior slab supports the landscaping located at the front (Arroyo Drive side) ground level of the building. Lateral Load-Resisting System The roof diaphragm consists of 1/2” plywood sheathing while the second floor (the upper level) diaphragm consists of the 3.5” concrete floor slab. Vertical elements of the building’s lateral load-resisting system consist of shear walls: a combination of interior wood-framed, plywood-sheathed, walls and the exterior concrete walls at perimeter of the building at the second (upper) story and exterior concrete walls and one interior concrete wall at the first (lower) story. The roof and second floor diaphragms deliver the lateral loads to the shear walls, which transfer then to the underlying/surrounding soil via the foundation system. FIELD OBSERVATION On March 10, 2025, engineers from Biggs Cardosa Associates performed a limited site visit to observe physical condition of the readily visible structural elements of the building and to verify general conformance of the in-place construction with the available structural drawings. Existing building finishes were not disturbed during this field observation. 36 City of South San Francisco Final Report April 23, 2025 Tier 1 Seismic Evaluation Risk Category II, III, and IV Municipal Services Building Page 9 In general, the building was observed to be in relatively good condition and appears to have been maintained reasonably well. No signs of water intrusion or significant structural distress (such as large cracks or spalls in concrete elements) were visible in the building areas observed. Observation of the roof framing was not possible as it was concealed by ceilings in nearly all areas of the upper level. The interior plywood shear walls at the second floor (constructed as part of the 1979 seismic upgrade) have threaded holdown rods that extend through the concrete beams added below the second floor slab. Some of the rods have missing washers and some of the nuts appear not have been properly installed at the bottom face of concrete beams. This condition may adversely impact the overturning capacity of the plywood shear walls above. A previous report for this building (prepared by Biggs Cardosa Associates in 2009) noted signs of water damage in the former police station area of the parking garage. The report also noted that some repair work appeared to have been done in that area, including installation of steel beams and columns, and epoxy injection in cracks. Based on photos from 2009, the installed structural steel framing appeared to have been covered by the building finishes. Therefore, we were unable to confirm those conditions during the site visit for this report but we assume that the framing is still in place. SEISMIC EVALUATION AND FINDINGS Evaluation Basis Seismic rehabilitation of existing buildings is typically performed either on a voluntary basis or is mandated by the building code under certain conditions. The scope for a voluntary upgrade can be for a complete or partial seismic retrofit, or no retrofit at all – all at the building owner’s discretion. The 2022 California Existing Building Code (CEBC) includes the following criteria that trigger mandatory seismic evaluation of a building and, if found deficient, a mandatory seismic upgrade: 1. Modifications to the building that increase its seismic weight by more than 10%. 2. Modifications to the building that decrease strength of any element of the lateral load- resisting system by more than 10%. 3. Any change in use of the building that results in a change to a higher Seismic Risk Category. 4. Any combination of the above triggers. In addition to the above CEBC triggers for a mandatory seismic evaluation/retrofit, each City/jurisdiction typically has other local requirements (such as extents of structural or non- 37 City of South San Francisco Final Report April 23, 2025 Tier 1 Seismic Evaluation Risk Category II, III, and IV Municipal Services Building Page 10 structural modifications or renovation and the percentage of total building area they encompass, cost of renovation as percentage of the building replacement cost, etc.) that if exceeded usually trigger a mandatory seismic evaluation and retrofit (if required). These triggers vary from City/jurisdiction to City/jurisdiction. After a seismic evaluation is complete, any elements found to be deficient require seismic upgrade to the current code level for a mandatory seismic retrofit. At the City’s request, this report includes evaluation of the Municipal Services Building’s lateral load-resisting system for three California Building Code (CBC) Risk Categories (seismic performance levels): •Risk Category II •Risk Category III •Risk Category IV In general, these three Risk Categories can be described as follows: Risk Category II Most common category that includes residential, office, and commercial buildings other than those in Risk Category III or IV. Risk Category III Buildings and other structures used for public assembly, schools and education facilities, structures with limited quantities of toxic or hazardous substances and other structures where failure poses a substantial threat to human life and/or substantial economic impact. Risk Category IV Buildings and other structures designated (per code, by the jurisdiction, or the owner) as essential facilities and/or facilities with higher quantities of toxic or hazardous substances. The seismic evaluations for this report were performed for the above CBC performance levels per the ASCE 41 Tier 1 procedure. ASCE 41 provides methods for determining equivalent CBC evaluations based on two different earthquake levels (BSE-1E and BSE-2E) and varying performance levels. Table 1 below shows the evaluations for each CBC Risk Category based on ASCE 41 Table 2-2. 38 City of South San Francisco Final Report April 23, 2025 Tier 1 Seismic Evaluation Risk Category II, III, and IV Municipal Services Building Page 11 Table 1: ASCE 41 Evaluation Matrix Response AccelerationsCBC Risk Category BSE-1E BSE-2E II N/A CP III N/A CP IV IO LS BSE - Basic safety earthquake N/A - Not applicable CP - Collapse Prevention IO - Immediate Occupancy LS - Life Safety It should be noted that for Risk Category IV, a Life Safety evaluation is performed using the Quick Check checklists for Collapse Prevention level but with an Ms load reduction factor for Life Safety level applied (ASCE 41 Table 2-2, Note d). The initial request from the City was for an evaluation of the overall MSB for Risk Category II and III, and an evaluation of only the Fire Station portion at the first floor for Risk Category IV. However, the Fire Station area is structurally connected to the second floor rigid diaphragm of the overall building and also to the exterior concrete walls on three sides. This type and configuration of structural framing does not allow for the Fire Station area to respond independently from the rest of the building during an earthquake. So, a seismic evaluation of a portion (i.e., the fire station area) of the building is deemed to be of limited value. For those reasons, we considered it more appropriate to evaluate the overall building for the Risk Category IV performance level. The seismic analysis of the MSB has been conducted in accordance with ASCE 41 for the performance levels (Risk Categories) described above. The ASCE 41 analysis consisted of a Tier 1 evaluation, which represents a preliminary seismic evaluation approach to quickly identify the potential seismic deficiencies in the building’s lateral load-resisting system. Analyses performed as part of the ASCE 41 Tier 1 evaluation process are limited to Quick Checks, which are mostly qualitative with some (limited) quantitative evaluations of the various lateral system components and their configuration. The Tier 1 analysis uses seismic forces calculated per ASCE 41 for determining whether the building complies with the evaluation criteria. Since this evaluation is preliminary, a Linear Static Procedure (LSP) utilizing hand calculations and spreadsheets was used to identify potential seismic deficiencies in the building. 39 City of South San Francisco Final Report April 23, 2025 Tier 1 Seismic Evaluation Risk Category II, III, and IV Municipal Services Building Page 12 The seismic load distribution utilizes a method similar to that prescribed in the CBC in which the base shear is distributed vertically to each level (roof and second floor in the case of MSB) based on each level’s weight and its height above the building base. The MSB can be generally categorized (per ASCE 41) as a Concrete Shear Wall Type C2 (stiff diaphragms) building as well as a Concrete Shear Wall C2a (flexible diaphragms) building. The concrete-slab diaphragm at the second floor of MSB is considered to be rigid in-plane while the wood-framed diaphragm at the roof is considered to be flexible. Rigid roof/floor diaphragms distribute lateral forces to the vertical elements (such as shear walls, braced frames, etc.) based on the latter’s relative stiffness whereas flexible roof/floor diaphragms do so based on the roof/floor area tributary to each vertical lateral load-resisting element. The Tier 1 procedure followed for this seismic evaluation utilized combined Checklists applicable to both Type C2 and C2a buildings. The interior plywood shear walls at second story of the MSB do not continue down to the first floor below. Due to these shear walls taking a significant portion of the east-west (transverse) roof seismic loads, their presence needs to be accounted for in the evaluation. For this evaluation, we therefore also utilized the Checklists for Wood Frame (Commercial) Type W2 buildings in addition to the evaluation Checklists for Type C2/C2A buildings. Seismic Evaluation Results The following is a list of potentially deficient or otherwise non-compliant items identified in our ASCE 41 evaluation of the MSB’s structural/lateral system. See Appendix 2 for Tier 1 Checklists. The deficiency titles below (all caps) are taken directly from ASCE 41 Checklists. The descriptions following the title use terminology similar to that used in the Checklists. Due to the building’s vertical lateral elements being concrete walls and its wood-framed roof, most of the potential deficiencies for this type of building are common across Risk Categories II, III, and IV. Further, the ASCE 41 Collapse Prevention checklists are applicable to the evaluations for all three Risk Categories. The Immediate Occupancy Checklists have additional checks that are not included with the Collapse Prevention checklists. However, most of these additional items are not applicable to the MSB building. For these reasons, most of the identified seismic deficiencies are generally common across all three Risk Categories. Building Types C2 and C2a: •VERTICAL IRREGULARITIES: The concrete shear walls at Gridline 11 and Gridline B are not continuous to the foundation. 40 City of South San Francisco Final Report April 23, 2025 Tier 1 Seismic Evaluation Risk Category II, III, and IV Municipal Services Building Page 13 •SHEAR STRESS CHECK: The shear stress in the concrete shear walls calculated using the Tier 1 Quick Check procedure exceeds the capacity provided in ASCE 41 for concrete shear walls. •WALL ANCHORAGE AT FLEXIBLE DIAPHRAGMS: The exterior concrete walls are not anchored adequately for out-of-plane forces at the (flexible) roof diaphragm level. •FOUNDATION DOWELS: Wall reinforcement is anchored to the foundation with welded embed plates. ASCE 41 requires concrete walls to be doweled into the foundation with vertical bars equal in size and spacing to the vertical wall reinforcing directly above the foundation. •CROSS TIES: There are not adequate continuous cross ties between diaphragm chords at the roof level. •TRANSFER TO SHEAR WALLS: Diaphragms are not adequately connected for transfer of loads to the shear walls, and the connections are unable to develop the lesser of the shear strength of the walls or diaphragms. •MASS IRREGULARITY: The weight of the second floor is more than 60% heavier than the roof level. Building Type W2: •VERTICAL IRREGULARITIES: The plywood shear walls at the second floor are not continuous to the foundation. •SHEAR STRESS CHECK: The shear stress in the plywood shear walls (between the roof and second floor) calculated using the Tier 1 Quick Check procedure exceeds the capacity provided in ASCE 41 for plywood shear walls. •MASS IRREGULARITY: The weight of the second floor is more than 60% heavier than the roof level. The following deficiencies are part of Tier 2 methodology in ASCE 41, which was not within the scope of this report. However, we believe they merit inclusion in the deficiency list due to their impact on seismic performance of the building. •DIAPHRAGMS (C2 and C2a): The wood diaphragm at the roof and the concrete diaphragm at the second floor do not have adequate in-plane shear capacity. •WALL THICKNESS AND PROPORTIONS (C2 and C2a): The exterior concrete walls do not have adequate out-of-plane bending capacity to span between floors at both levels. 41 City of South San Francisco Final Report April 23, 2025 Tier 1 Seismic Evaluation Risk Category II, III, and IV Municipal Services Building Page 14 •WALL CONNECTIONS (C2 and C2a): The out-of-plane connections of the concrete walls to the second floor concrete diaphragm do not have adequate capacity. Based on our visual review of the structure and an evaluation of the building in accordance with ASCE 41 Tier 1 procedure, it is our opinion that the MSB does not meet the requirements for Risk Category II, III, or IV. Therefore, in the event of a major earthquake, the building is anticipated to be susceptible to significant structural damage and may not remain fully operational immediately following a major seismic event. SEISMIC RETROFIT RECOMMENDATIONS In order to remedy the potential seismic deficiencies identified above, the following retrofit work would be required. 1. Increase capacity of the concrete wall anchorage system at the roof, both for shear and out-of-plane loads, by installing wall anchors, crossties, and sub-diaphragms. 2. Increase in-plane shear capacity of the roof diaphragm by additional nailing and second floor diaphragm by adding carbon fiber in overstressed areas or by installing new vertical shear resisting elements (e.g., shear walls) below the second floor to reduce shear demands on the diaphragm. 3. Increase the in-plane shear transfer capacity of the connections of the roof and second floor diaphragms to the concrete walls. 4. Increase shear capacity of the second-story plywood shear walls by adding nailing to existing plywood and/or adding plywood to the opposite side of the walls. Upgrades will also include improving fastenings of the shear walls to the roof and second floor for shear transfer and upgrades to holdowns and anchorage to the second floor. Install longer threaded rods with nuts and bearing plates below the second floor at shear walls. 5. Install new concrete shear walls or steel braced frames below the discontinuous second-story concrete walls on the west (Arroyo, Gridline B) and south (Fire Station, Gridline 12) sides of the building. Upgrade existing collectors along the wall to transfer loads to the new shear walls or braced frames. 6. Increase capacity of exterior concrete wall anchorage to the foundations and second floor, both for shear and out-of-plane loads. 7. Strengthen the exterior concrete walls at both stories for out-of-plane loads by adding steel framing attached to the walls or by adding carbon fiber to both wall faces. 8. Install shotcrete or carbon fiber over selected existing exterior concrete walls to increase their in-plane shear capacity, at both stories. 42 City of South San Francisco Final Report April 23, 2025 Tier 1 Seismic Evaluation Risk Category II, III, and IV Municipal Services Building Page 15 The proposed seismic retrofit work outlined above is depicted conceptually in the sketches included in Appendix 1. COST ESTIMATE The preliminary construction cost estimates for the retrofit work required to upgrade the building to Risk Category II, III and IV per the current building code, as outlined above, are shown in the table below. These amounts are rough-order-of magnitude (ROM) conceptual- level estimates that were developed using historical cost data for buildings of this type and our experience with similar structures. The estimates should be used for preliminary budgeting purposes only (actual retrofit costs may vary substantially from these preliminary estimates). Risk Category II $5,575,000 Risk Category III $6,500,000 Risk Category IV $7,575,000 The recommended modifications noted in this report are based on our preliminary structural evaluation, the type and condition of the existing lateral system, engineering judgment, and experience obtained from evaluating and retrofitting similar buildings, and available historical construction cost data. It should be noted that there could be concealed structural deficiencies that are typically not possible to identify in this type of limited preliminary seismic evaluation. These types of unforeseen conditions can increase the actual retrofit construction costs substantially. The estimates of probable construction cost provided above are intended to serve only as a measure of cost feasibility. The estimated costs are preliminary in nature as they are based on limited analytical work and on historical cost data and may vary significantly depending on the final design, the condition of the structure when exposed during construction, the construction cost and bidding climate, and future code requirements. Therefore, the estimates should be used only for preliminary budgeting purposes and for assessing the relative feasibility of retrofitting the building to the desired Risk Category. The preliminary estimates include the structural work necessary to seismically retrofit the building. Costs necessary to replace and upgrade architectural finishes and ADA upgrades, as well as mechanical, electrical, plumbing, and data systems are not included. The cost estimates also assume that the building is free of hazardous materials. The estimates also do not include soft costs, such as consultant design fees and permit fees. Since the above estimates of probable construction cost are preliminary and are based on limited structural information, the actual construction cost as stated above could vary substantially. In order to develop a more realistic construction cost estimate, we recommend that a more complete seismic evaluation, such as ASCE 41 Tier 2, be performed. Such an 43 City of South San Francisco Final Report April 23, 2025 Tier 1 Seismic Evaluation Risk Category II, III, and IV Municipal Services Building Page 16 evaluation would confirm some of the potential deficiencies indicated by the Tier 1 methodology while eliminate others and develop one or more conceptual seismic retrofit schemes to remedy the confirmed deficiencies in the building’s lateral system. The work will include performing a detailed evaluation of the existing structural framing, exposing and inspecting selected concealed structural elements and their connections, conducting material testing (if required), performing more detailed analysis, preparing conceptual sketches depicting the nature and extent of retrofit work for each conceptual seismic retrofit scheme, and developing a detailed cost estimate (prepared by a professional cost estimating firm). After a conceptual seismic retrofit scheme and its anticipated construction costs for strengthening the Municipal Services Building are approved by the City, the project then could move forward to the development of final construction documents. As is the case for nearly all seismic upgrade projects, the construction documents phase of the project would require a multi-disciplinary team of consultants that can address architectural, structural, mechanical, electrical, plumbing and cost estimating aspects of the project. RECOMMENDED FURTHER ACTIONS The findings of our preliminary seismic evaluation based on the ASCE 41-17 Tier 1 procedure indicate that the Municipal Services Building has significant potential seismic deficiencies and is susceptible to substantial damage during a major seismic event. We recommend that the City select one of the following two options for the building. Option 1 – Perform Voluntary Seismic Upgrade to Comply with Current Building Code If the City elects to upgrade the MSB to the current seismic code/standards in order to improve its potential performance during a major seismic event, we recommend the following further steps to implement a voluntary seismic retrofit program for the building. These steps will help define fully the scope of required seismic retrofit work and the associated construction costs: 1. Perform a more detailed ASCE 41 Tier 2 Deficiency-Based Seismic Evaluation of the building, based on the Risk Category selected by the City, to fully define the building’s seismic retrofit needs. 2. Using the seismic deficiencies identified and verified via the Tier 2 evaluation, develop at least one conceptual seismic retrofit scheme to remedy those deficiencies. 3. Prepare sketches for the proposed seismic retrofit scheme(s) to indicate the nature and extent of required seismic retrofit work. 4. Prepare a more detailed estimate of the probable construction costs. This estimate should be prepared by a third-party professional cost estimating firm. 44 City of South San Francisco Final Report April 23, 2025 Tier 1 Seismic Evaluation Risk Category II, III, and IV Municipal Services Building Page 17 The implementation of these actions will help determine the full extent of structural/seismic upgrade required in order for the building to comply with the current building code requirements and its expected construction costs. After approval by the City, the project would then proceed to the final design phase in order to prepare the construction documents. Option 2 – Use MSB for Any Permissible Occupancy without Seismic Retrofit The as-built structural drawings for the seismic upgrade work performed in 1979 indicate that the entire Municipal Services Building was retrofitted to comply with the Essential Facility requirements of the Uniform Building Code in effect at that time. Given this, it is our opinion that the City may choose to use the MSB for any permissible occupancy type without any requirement to seismically retrofit the overall building per the current building code as long as any structural modifications or non-structural renovations that may be undertaken for the selected building use/occupancy do not exceed the various thresholds in the building code or adopted by the City of South San Francisco Building Department (SSFBD). In the event at least one of these thresholds is exceeded, a mandatory seismic evaluation and retrofit (if required) of the overall building, per the current building code, is triggered. If the City elects to use the MSB essentially “as is” with only minor structural modifications and/or limited non-structural renovation required for the selected use/occupancy that do not trigger a mandatory seismic evaluation/retrofit of the overall building, we recommend undertaking the following further steps: 1. Confirm with SSFBD that the 1979 seismic retrofit work was indeed permitted to upgrade the building to an Essential Facility and that the work was fully implemented during construction. 2. Consult with SSFBD to determine the thresholds for all applicable triggers (structural modifications, non-structural renovation, etc.) that, if exceeded, would require seismic evaluation and, possibly, retrofit of the overall building per the current building code. 3. Modify/renovate the building per requirements of the selected use/occupancy while ensuring that none of the applicable trigger thresholds is exceeded. 45 City of South San Francisco Final Report April 23, 2025 Tier 1 Seismic Evaluation Risk Category II, III, and IV Municipal Services Building Page 18 LIMITATIONS AND DISCLAIMERS The evaluation, findings, conclusions and recommendations outlined in this report were based on limited information and preliminary analytical work per requirements of the ASCE 41 Tier 1 methodology. This report has been prepared using the same degree of care and skill ordinarily exercised for this type of professional service by structural engineers practicing in this area at this time. No other warranty, expressed or implied, is made as to the professional advice in this report. This report has been prepared for exclusive use of the City of South San Francisco and may not be used by any other individual or entity without the express written approval of Biggs Cardosa Associates, Inc. 46 City of South San Francisco Final Report April 23, 2025 Tier 1 Seismic Evaluation Risk Category II, III, and IV Municipal Services Building Appendix 1 Conceptual Seismic Retrofit Plans 47 INSTALL SHOTCRETE ATSELECT EXISTING CONCRETEWALLS TO INCREASE IN-PLANESHEAR CAPACITYSTRENGTHENALL PERIMETERCONC WALLSFOR OUT-OF-PLANELOADS BETWEENFOUNDATION ANDSECOND FLOOR,INCLUDINGCONNECTIONSINSTALL NEW CONCSHEAR WALLS ORBRACED FRAMES BELOWDISCONTINUOUS SHEARWALLS ABOVEINCREASE IN-PLANE SHEARCAPACITY OF CONC PANELANCHORAGE TO THEFOUNDATION, TYP ALLEXTERIOR CONC WALLSCONCEPTUAL SEISMIC RETROFITBIGGS CARDOSA ASSOCIATES, INC.04-23-202548 INSTALL SHOTCRETE ATSELECT EXISTING CONCRETEWALLS TO INCREASE IN-PLANESHEAR CAPACITYINSTALL NEWANCHORAGE ATALL PERIMETERCONC WALLS TO(E) SECOND FLOORSLABSECOND FLOOR FRAMING PLANSTRENGTHENALL PERIMETERCONC WALLSFOR OUT-OF-PLANELOADS FROM SECONDFLOOR TO ROOFINCREASE (E) PLYWOOD SHEAR WALLCAPACITY AT THE SECOND FLOOR BY INSTALLING:- ADDITIONAL FASTENING TO THE ROOF DIAPHRAGM- ADDITIONAL PLYWOOD AT WALL FACE OPPOSITE OF (E) PLYWOOD- NEW SILL ANCHORS TO SECOND FLOOR- NEW HOLDOWNS AT WALL ENDS- NEW HD ANCHOR RODS AND HARDWARETYP AT ALL (E) SHEAR WALLS (SHOWNHIGHLIGHTED YELLOW)CONCEPTUAL SEISMIC RETROFITBIGGS CARDOSA ASSOCIATES, INC.04-23-2025INSTALL CARBON FIBEROVER 2ND FLOOR SLAB INSELECT AREAS TOENHANCE DIAPHRAGMSHEAR CAPACITY49 INSTALL NEWOUT-OF PLANEWALL ANCHORAGEAT ALL PERIMETERCONC WALLSINSTALL ADDITIONAL PLYWOODDIPAHRGAM NAILING TO INCREASECAPACITY, TYP AT ROOFINSTALL ADDITIONAL CROSSTIESAND SUBDIAPHRAGM NAILING TOINCREASE CAPACITY FOR OUT-OFPLANE WALL ANCHORAGE, TYP ATROOF DIAPHRAGMCONCEPTUAL SEISMIC RETROFITBIGGS CARDOSA ASSOCIATES, INC.04-23-202550 City of South San Francisco Final Report April 23, 2025 Tier 1 Seismic Evaluation Risk Category II, III, and IV Municipal Services Building Appendix 2 ASCE 41 Tier 1 Checklists 51 52 53 54 Table 17-24. Collapse Prevention Structural Checklist for Building Types C2 and C2a Status Evaluation Statement Tier 2 Reference Commentary Reference Low and Moderate Seismicity Seismic-Force-Resisting System C NC N/A U COMPLETE FRAMES: Steel or concrete frames classified as secondary components form a complete vertical-load-carrying system. 5.5.2.5.1 A.3.1.6.1 C NC N/A U REDUNDANCY: The number of lines of shear walls in each principal direction is greater than or equal to 2. 5.5.1.1 A.3.2.1.1 C NC N/A U SHEAR STRESS CHECK: The shear stress in the concrete shear walls, calculated using the Quick Check procedure of Section 4.4.3.3, is less than the greater of 100 lb/in. 2 (0.69 MPa) or 2 ffiffiffiffiffi f 0c p . 5.5.3.1.1 A.3.2.2.1 C NC N/A U REINFORCING STEEL: The ratio of reinforcing steel area to gross concrete area is not less than 0.0012 in the vertical direction and 0.0020 in the horizontal direction. 5.5.3.1.3 A.3.2.2.2 Connections C NC N/A U WALL ANCHORAGE AT FLEXIBLE DIAPHRAGMS: Exterior concrete or masonry walls that are dependent on flexible diaphragms for lateral support are anchored for out-of-plane forces at each diaphragm level with steel anchors, reinforcing dowels, or straps that are developed into the diaphragm. Connections have strength to resist the connection force calculated in the Quick Check procedure of Section 4.4.3.7. 5.7.1.1 A.5.1.1 C NC N/A U TRANSFER TO SHEAR WALLS: Diaphragms are connected for transfer of seismic forces to the shear walls. 5.7.2 A.5.2.1 C NC N/A U FOUNDATION DOWELS: Wall reinforcement is doweled into the foundation with vertical bars equal in size and spacing to the vertical wall reinforcing directly above the foundation. 5.7.3.4 A.5.3.5 High Seismicity (Complete the Following Items in Addition to the Items for Low and Moderate Seismicity) Seismic-Force-Resisting System C NC N/A U DEFLECTION COMPATIBILITY: Secondary components have the shear capacity to develop the flexural strength of the components. 5.5.2.5.2 A.3.1.6.2 C NC N/A U FLAT SLABS: Flat slabs or plates not part of the seismic-force-resisting system have continuous bottom steel through the column joints. 5.5.2.5.3 A.3.1.6.3 C NC N/A U COUPLING BEAMS: The ends of both walls to which the coupling beam is attached are supported at each end to resist vertical loads caused by overturning. 5.5.3.2.1 A.3.2.2.3 Diaphragms (Stiff or Flexible) C NC N/A U DIAPHRAGM CONTINUITY: The diaphragms are not composed of split-level floors and do not have expansion joints. 5.6.1.1 A.4.1.1 C NC N/A U OPENINGS AT SHEAR WALLS: Diaphragm openings immediately adjacent to the shear walls are less than 25% of the wall length. 5.6.1.3 A.4.1.4 Flexible Diaphragms C NC N/A U CROSS TIES: There are continuous cross ties between diaphragm chords. 5.6.1.2 A.4.1.2 C NC N/A U STRAIGHT SHEATHING: All straight-sheathed diaphragms have aspect ratios less than 2-to-1 in the direction being considered. 5.6.2 A.4.2.1 C NC N/A U SPANS: All wood diaphragms with spans greater than 24 ft (7.3 m) consist of wood structural panels or diagonal sheathing. 5.6.2 A.4.2.2 C NC N/A U DIAGONALLY SHEATHED AND UNBLOCKED DIAPHRAGMS: All diagonally sheathed or unblocked wood structural panel diaphragms have horizontal spans less than 40 ft (12.2 m) and aspect ratios less than or equal to 4-to-1. 5.6.2 A.4.2.3 C NC N/A U OTHER DIAPHRAGMS: Diaphragms do not consist of a system other than wood, metal deck, concrete, or horizontal bracing. 5.6.5 A.4.7.1 Connections C NC N/A U UPLIFT AT PILE CAPS: Pile caps have top reinforcement, and piles are anchored to the pile caps. 5.7.3.5 A.5.3.8 Note:C =Compliant, NC =Noncompliant, N/A =Not Applicable, and U =Unknown. Seismic Evaluation and Retrofit of Existing Structures 299 55 Table 17-25. Immediate Occupancy Structural Checklist for Building Types C2 and C2a Status Evaluation Statement Tier 2 Reference Commentary Reference Very Low Seismicity Seismic-Force-Resisting System C NC N/A U COMPLETE FRAMES: Steel or concrete frames classified as secondary components form a complete vertical-load-carrying system. 5.5.2.5.1 A.3.1.6.1 C NC N/A U REDUNDANCY: The number of lines of shear walls in each principal direction is greater than or equal to 2. 5.5.1.1 A.3.2.1.1 C NC N/A U SHEAR STRESS CHECK: The shear stress in the concrete shear walls, calculated using the Quick Check procedure of Section 4.4.3.3, is less than the greater of 100 lb/in. 2 (0.69 MPa) or 2 ffiffiffiffiffi f 0 c p . 5.5.3.1.1 A.3.2.2.1 C NC N/A U REINFORCING STEEL: The ratio of reinforcing steel area to gross concrete area is not less than 0.0012 in the vertical direction and 0.0020 in the horizontal direction. The spacing of reinforcing steel is equal to or less than 18 in. (457 mm). 5.5.3.1.3 A.3.2.2.2 Connections C NC N/A U WALL ANCHORAGE AT FLEXIBLE DIAPHRAGMS: Exterior concrete or masonry walls that are dependent on flexible diaphragms for lateral support are anchored for out-of-plane forces at each diaphragm level with steel anchors, reinforcing dowels, or straps that are developed into the diaphragm. Connections have strength to resist the connection force calculated in the Quick Check procedure of Section 4.4.3.7. 5.7.1.1 A.5.1.1 C NC N/A U TRANSFER TO SHEAR WALLS: Diaphragms are connected for transfer of loads to the shear walls, and the connections are able to develop the lesser of the shear strength of the walls or diaphragms. 5.7.2 A.5.2.1 C NC N/A U FOUNDATION DOWELS: Wall reinforcement is doweled into the foundation, and the dowels are able to develop the lesser of the strength of the walls or the uplift capacity of the foundation. 5.7.3.4 A.5.3.5 Foundation System C NC N/A U DEEP FOUNDATIONS: Piles and piers are capable of transferring the lateral forces between the structure and the soil. A.6.2.3 C NC N/A U SLOPING SITES: The difference in foundation embedment depth from one side of the building to another does not exceed one story. A.6.2.4 Low, Moderate, and High Seismicity (Complete the Following Items in Addition to the Items for Very Low Seismicity) Seismic-Force-Resisting System C NC N/A U DEFLECTION COMPATIBILITY: Secondary components have the shear capacity to develop the flexural strength of the components and are compliant with the following items in Table 17-23: COLUMN-BAR SPLICES, BEAM-BAR SPLICES, COLUMN-TIE SPACING, STIRRUP SPACING, and STIRRUP AND TIE HOOKS. 5.5.2.5.2 A.3.1.6.2 C NC N/A U FLAT SLABS: Flat slabs or plates not part of seismic-force-resisting system have continuous bottom steel through the column joints. 5.5.2.5.3 A.3.1.6.3 C NC N/A U COUPLING BEAMS: The ends of both walls to which the coupling beam is attached are supported at each end to resist vertical loads caused by overturning. Coupling beams have the capacity in shear to develop the uplift capacity of the adjacent wall. 5.5.3.2.1 A.3.2.2.3 C NC N/A U OVERTURNING: All shear walls have aspect ratios less than 4-to-1. Wall piers need not be considered. 5.5.3.1.4 A.3.2.2.4 C NC N/A U CONFINEMENT REINFORCING: For shear walls with aspect ratios greater than 2-to-1, the boundary elements are confined with spirals or ties with spacing less than 8db. 5.5.3.2.2 A.3.2.2.5 C NC N/A U WALL REINFORCING AT OPENINGS: There is added trim reinforcement around all wall openings with a dimension greater than three times the thickness of the wall. 5.5.3.1.5 A.3.2.2.6 C NC N/A U WALL THICKNESS: Thicknesses of bearing walls are not less than 1/25 the unsupported height or length, whichever is shorter, nor less than 4 in. (101 mm). 5.5.3.1.2 A.3.2.2.7 continues 300 STANDARD ASCE/SEI 41-17 56 categorized as Noncompliant or Unknown. For evaluation state- ments classified as Noncompliant or Unknown, the design professional is permitted to choose to conduct further investiga- tion using the corresponding Tier 2 evaluation procedure listed next to each evaluation statement. 17.13 STRUCTURAL CHECKLISTS FOR BUILDING TYPES C3: CONCRETE FRAMES WITH INFILL MASONRY SHEAR WALLS AND C3A: CONCRETE FRAMES WITH INFILL MASONRY SHEAR WALLS AND FLEXIBLE DIAPHRAGMS For building systems and configurations that comply with the C3 or C3a building type description in Table 3-1, the Collapse Prevention Structural Checklist in Table 17-26 shall be com- pleted where required by Table 4-6 for Collapse Prevention Structural Performance, and the Immediate Occupancy Structural Checklist in Table 17-27 shall be completed where required by Table 4-6 for Immediate Occupancy Structural Performance. Tier 1 screening shall include on-site investigation and condition assessment as required by Section 4.2.1. Where applicable, each of the evaluation statements listed in this checklist shall be marked Compliant (C), Noncompliant (NC), Not Applicable (N/A), or Unknown (U) for a Tier 1 screening. Items that are deemed acceptable to the design professional in accordance with the evaluation statement shall be categorized as Compliant, whereas items that are determined by the design professional to require further investigation shall be categorized as Noncompliant or Unknown. For evaluation statements classi- fied as Noncompliant or Unknown, the design professional is permitted to choose to conduct further investigation using the corresponding Tier 2 evaluation procedure listed next to each evaluation statement. 17.14 STRUCTURAL CHECKLISTS FOR BUILDING TYPES PC1: PRECAST OR TILT-UP CONCRETE SHEAR WALLS WITH FLEXIBLE DIAPHRAGMS AND PC1A: PRECAST OR TILT-UP CONCRETE SHEAR WALLS WITH STIFF DIAPHRAGMS For building systems and configurations that comply with the PC1 or PC1a building type description in Table 3-1, the Collapse Prevention Structural Checklist in Table 17-28 shall be completed where required by Table 4-6 for Collapse Prevention Structural Performance, and the Immediate Occupancy Structural Checklist in Table 17-29 shall be com- pleted where required by Table 4-6 for Immediate Occupancy Structural Performance. Tier 1 screening shall include on- site investigation and condition assessment as required by Section 4.2.1. Table 17-25 (Continued). Immediate Occupancy Structural Checklist for Building Types C2 and C2a Status Evaluation Statement Tier 2 Reference Commentary Reference Diaphragms (Stiff or Flexible) C NC N/A U DIAPHRAGM CONTINUITY: The diaphragms are not composed of split-level floors and do not have expansion joints. 5.6.1.1 A.4.1.1 C NC N/A U OPENINGS AT SHEAR WALLS: Diaphragm openings immediately adjacent to the shear walls are less than 15% of the wall length. 5.6.1.3 A.4.1.4 C NC N/A U PLAN IRREGULARITIES: There is tensile capacity to develop the strength of the diaphragm at reentrant corners or other locations of plan irregularities. 5.6.1.4 A.4.1.7 C NC N/A U DIAPHRAGM REINFORCEMENT AT OPENINGS: There is reinforcing around all diaphragm openings larger than 50% of the building width in either major plan dimension. 5.6.1.5 A.4.1.8 Flexible Diaphragms C NC N/A U CROSS TIES: There are continuous cross ties between diaphragm chords. 5.6.1.2 A.4.1.2 C NC N/A U STRAIGHT SHEATHING: All straight-sheathed diaphragms have aspect ratios less than 1-to-1 in the direction being considered. 5.6.2 A.4.2.1 C NC N/A U SPANS: All wood diaphragms with spans greater than 12 ft (3.6 m) consist of wood structural panels or diagonal sheathing. 5.6.2 A.4.2.2 C NC N/A U DIAGONALLY SHEATHED AND UNBLOCKED DIAPHRAGMS: All diagonally sheathed or unblocked wood structural panel diaphragms have horizontal spans less than 30 ft (9.2 m) and aspect ratios less than or equal to 3-to-1. 5.6.2 A.4.2.3 C NC N/A U NONCONCRETE FILLED DIAPHRAGMS: Untopped metal deck diaphragms or metal deck diaphragms with fill other than concrete consist of horizontal spans of less than 40 ft (12.2 m) and have aspect ratios less than 4-to-1. 5.6.3 A.4.3.1 C NC N/A U OTHER DIAPHRAGMS: Diaphragms do not consist of a system other than wood, metal deck, concrete, or horizontal bracing. 5.6.5 A.4.7.1 Connections C NC N/A U UPLIFT AT PILE CAPS: Pile caps have top reinforcement, and piles are anchored to the pile caps; the pile cap reinforcement and pile anchorage are able to develop the tensile capacity of the piles. 5.7.3.5 A.5.3.8 Note:C =Compliant, NC =Noncompliant, N/A =Not Applicable, and U =Unknown. Seismic Evaluation and Retrofit of Existing Structures 301 57 Table 17-6. Collapse Prevention Structural Checklist for Building Type W2 Status Evaluation Statement Tier 2 Reference Commentary Reference Low and Moderate Seismicity Seismic-Force-Resisting System C NC N/A U REDUNDANCY: The number of lines of shear walls in each principal direction is greater than or equal to 2. 5.5.1.1 A.3.2.1.1 C NC N/A U SHEAR STRESS CHECK: The shear stress in the shear walls, calculated using the Quick Check procedure of Section 4.4.3.3, is less than the following values: Structural panel sheathing 1,000 lb/ft Diagonal sheathing 700 lb/ft Straight sheathing 100 lb/ft All other conditions 100 lb/ft 5.5.3.1.1 A.3.2.7.1 C NC N/A U STUCCO (EXTERIOR PLASTER) SHEAR WALLS: Multi-story buildings do not rely on exterior stucco walls as the primary seismic-force-resisting system. 5.5.3.6.1 A.3.2.7.2 C NC N/A U GYPSUM WALLBOARD OR PLASTER SHEAR WALLS: Interior plaster or gypsum wallboard is not used for shear walls on buildings more than one story high with the exception of the uppermost level of a multi-story building. 5.5.3.6.1 A.3.2.7.3 C NC N/A U NARROW WOOD SHEAR WALLS: Narrow wood shear walls with an aspect ratio greater than 2-to-1 are not used to resist seismic forces. 5.5.3.6.1 A.3.2.7.4 C NC N/A U WALLS CONNECTED THROUGH FLOORS: Shear walls have an interconnection between stories to transfer overturning and shear forces through the floor. 5.5.3.6.2 A.3.2.7.5 C NC N/A U HILLSIDE SITE: For structures that are taller on at least one side by more than one-half story because of a sloping site, all shear walls on the downhill slope have an aspect ratio less than 1-to-1. 5.5.3.6.3 A.3.2.7.6 C NC N/A U CRIPPLE WALLS: Cripple walls below first-floor-level shear walls are braced to the foundation with wood structural panels. 5.5.3.6.4 A.3.2.7.7 C NC N/A U OPENINGS: Walls with openings greater than 80% of the length are braced with wood structural panel shear walls with aspect ratios of not more than 1.5-to-1 or are supported by adjacent construction through positive ties capable of transferring the seismic forces. 5.5.3.6.5 A.3.2.7.8 Connections C NC N/A U WOOD POSTS: There is a positive connection of wood posts to the foundation. 5.7.3.3 A.5.3.3 C NC N/A U WOOD SILLS: All wood sills are bolted to the foundation. 5.7.3.3 A.5.3.4 C NC N/A U GIRDER–COLUMN CONNECTION: There is a positive connection using plates, connection hardware, or straps between the girder and the column support. 5.7.4.1 A.5.4.1 High Seismicity (Complete the Following Items in Addition to the Items for Low and Moderate Seismicity) Connections C NC N/A U WOOD SILL BOLTS: Sill bolts are spaced at 6 ft (1.8 m) or less with acceptable edge and end distance provided for wood and concrete. 5.7.3.3 A.5.3.7 Diaphragms C NC N/A U DIAPHRAGM CONTINUITY: The diaphragms are not composed of split-level floors and do not have expansion joints. 5.6.1.1 A.4.1.1 C NC N/A U ROOF CHORD CONTINUITY: All chord elements are continuous, regardless of changes in roof elevation. 5.6.1.1 A.4.1.3 C NC N/A U DIAPHRAGM REINFORCEMENT AT OPENINGS: There is reinforcing around all diaphragm openings larger than 50% of the building width in either major plan dimension. 5.6.1.5 A.4.1.8 C NC N/A U STRAIGHT SHEATHING: All straight-sheathed diaphragms have aspect ratios less than 2-to-1 in the direction being considered. 5.6.2 A.4.2.1 C NC N/A U SPANS: All wood diaphragms with spans greater than 24 ft (7.3 m) consist of wood structural panels or diagonal sheathing. 5.6.2 A.4.2.2 continues Seismic Evaluation and Retrofit of Existing Structures 273 58 Table 17-6 (Continued). Collapse Prevention Structural Checklist for Building Type W2 Status Evaluation Statement Tier 2 Reference Commentary Reference C NC N/A U DIAGONALLY SHEATHED AND UNBLOCKED DIAPHRAGMS: All diagonally sheathed or unblocked wood structural panel diaphragms have horizontal spans less than 40 ft (12.2 m) and have aspect ratios less than or equal to 4-to-1. 5.6.2 A.4.2.3 C NC N/A U OTHER DIAPHRAGMS: The diaphragms do not consist of a system other than wood, metal deck, concrete, or horizontal bracing. 5.6.5 A.4.7.1 Note:C =Compliant, NC =Noncompliant, N/A =Not Applicable, and U =Unknown. Table 17-7. Immediate Occupancy Checklist for Building Type W2 Status Evaluation Statement Tier 2 Reference Commentary Reference Very Low Seismicity Seismic-Force-Resisting System C NC N/A U REDUNDANCY: The number of lines of shear walls in each principal direction is greater than or equal to 2. 5.5.1.1 A.3.2.1.1 C NC N/A U SHEAR STRESS CHECK: The shear stress in the shear walls, calculated using the Quick Check procedure of Section 4.4.3.3, is less than the following values: Structural panel sheathing 1,000 lb/ft (14.6 kN/m) Diagonal sheathing 700 lb/ft (10.2 kN/m) Straight sheathing 100 lb/ft (1.5 kN/m) All other conditions 100 lb/ft (1.5 kN/m) 5.5.3.1.1 A.3.2.7.1 C NC N/A U STUCCO (EXTERIOR PLASTER) SHEAR WALLS: Multi-story buildings do not rely on exterior stucco walls as the primary seismic-force-resisting system. 5.5.3.6.1 A.3.2.7.2 C NC N/A U GYPSUM WALLBOARD OR PLASTER SHEAR WALLS: Interior plaster or gypsum wallboard is not used for shear walls on buildings more than one story high with the exception of the uppermost level of a multi-story building. 5.5.3.6.1 A.3.2.7.3 C NC N/A U NARROW WOOD SHEAR WALLS: Narrow wood shear walls with an aspect ratio greater than 2-to-1 are not used to resist seismic forces. 5.5.3.6.1 A.3.2.7.4 C NC N/A U WALLS CONNECTED THROUGH FLOORS: Shear walls have an interconnection between stories to transfer overturning and shear forces through the floor. 5.5.3.6.2 A.3.2.7.5 C NC N/A U HILLSIDE SITE: For structures that are taller on at least one side by more than one-half story because of a sloping site, all shear walls on the downhill slope have an aspect ratio less than 1-to-2. 5.5.3.6.3 A.3.2.7.6 C NC N/A U CRIPPLE WALLS: Cripple walls below first-floor-level shear walls are braced to the foundation with wood structural panels. 5.5.3.6.4 A.3.2.7.7 C NC N/A U OPENINGS: Walls with openings greater than 80% of the length are braced with wood structural panel shear walls with aspect ratios of not more than 1.5-to-1 or are supported by adjacent construction through positive ties capable of transferring the seismic forces. 5.5.3.6.5 A.3.2.7.8 C NC N/A U HOLD-DOWN ANCHORS: All shear walls have hold-down anchors attached to the end studs constructed in accordance with acceptable construction practices. 5.5.3.6.6 A.3.2.7.9 Connections C NC N/A U WOOD POSTS: There is a positive connection of wood posts to the foundation. 5.7.3.3 A.5.3.3 C NC N/A U WOOD SILLS: All wood sills are bolted to the foundation. 5.7.3.3 A.5.3.4 C NC N/A U GIRDER–COLUMN CONNECTION: There is a positive connection using plates, connection hardware, or straps between the girder and the column support. 5.7.4.1 A.5.4.1 continues 274 STANDARD ASCE/SEI 41-17 59 professional to require further investigation shall be categorized as Noncompliant or Unknown. For evaluation statements classified asNoncompliantorUnknown,thedesignprofessionalispermitted to choose to conduct further investigation using the corresponding Tier 2 evaluation procedure listed next to each evaluation statement. 17.4 STRUCTURAL CHECKLISTS FOR BUILDING TYPES S1: STEEL MOMENT FRAMES WITH STIFF DIAPHRAGMS AND S1A: STEEL MOMENT FRAMES WITH FLEXIBLE DIAPHRAGMS For building systems and configurations that comply with the S1 or S1a building type description in Table 3-1, the Collapse Prevention Structural Checklist in Table 17-8 shall be completed where required by Table 4-6 for Collapse Prevention Structural Performance, and the Immediate Occupancy Structural Checklist in Table 17-9 shall be completed where required by Table 4-6 for Immediate Occupancy Structural Performance. Tier 1 screening shall include on-site investigation and condition assessment as required by Section 4.2.1. Where applicable, each of the evaluation statements listed in this checklist shall be marked Compliant (C), Noncompliant (NC), Not Applicable (N/A), or Unknown (U) for a Tier 1 screening. Items that are deemed acceptable to the design professional in accordance with the evaluation statement shall be categorized as Compliant, whereas items that are determined by the design professional to require further investigation shall be categorized as Noncompliant or Unknown. For evaluation state- ments classified as Noncompliant or Unknown, the design professional is permitted to choose to conduct further investiga- tion using the corresponding Tier 2 evaluation procedure listed next to each evaluation statement. 17.5 STRUCTURAL CHECKLIST FOR BUILDING TYPES S2: STEEL BRACED FRAMES WITH STIFF DIAPHRAGMS AND S2A: STEEL BRACED FRAMES WITH FLEXIBLE DIAPHRAGMS For building systems and configurations that comply with the S2 or S2a building type description in Table 3-1, the Collapse Prevention Structural Checklist in Table 17-10 shall be comple- ted where required by Table 4-6 for Collapse Prevention Struc- tural Performance, and the Immediate Occupancy Structural Checklist in Table 17-11 shall be completed where required by Table 4-6 for Immediate Occupancy Structural Performance. Table 17-7 (Continued). Immediate Occupancy Checklist for Building Type W2 Status Evaluation Statement Tier 2 Reference Commentary Reference Foundation System C NC N/A U DEEP FOUNDATIONS: Piles and piers are capable of transferring the lateral forces between the structure and the soil. A.6.2.3 C NC N/A U SLOPING SITES: The difference in foundation embedment depth from one side of the building to another does not exceed one story high. A.6.2.4 Low, Moderate, and High Seismicity (Complete the Following Items in Addition to the Items for Very Low Seismicity) Seismic-Force-Resisting System C NC N/A U NARROW WOOD SHEAR WALLS: Narrow wood shear walls with an aspect ratio greater than 1.5-to-1 are not used to resist seismic forces. 5.5.3.6.1 A.3.2.7.4 Diaphragms C NC N/A U DIAPHRAGM CONTINUITY: The diaphragms are not composed of split-level floors and do not have expansion joints. 5.6.1.1 A.4.1.1 C NC N/A U ROOF CHORD CONTINUITY: All chord elements are continuous, regardless of changes in roof elevation. 5.6.1.1 A.4.1.3 C NC N/A U DIAPHRAGM REINFORCEMENT AT OPENINGS: There is reinforcing around all diaphragm openings larger than 50% of the building width in either major plan dimension. 5.6.1.5 A.4.1.8 C NC N/A U STRAIGHT SHEATHING: All straight-sheathed diaphragms have aspect ratios less than 1-to-1 in the direction being considered. 5.6.2 A.4.2.1 C NC N/A U SPANS: All wood diaphragms with spans greater than 12 ft (3.6 m) consist of wood structural panels or diagonal sheathing. 5.6.2 A.4.2.2 C NC N/A U DIAGONALLY SHEATHED AND UNBLOCKED DIAPHRAGMS: All diagonally sheathed or unblocked wood structural panel diaphragms have horizontal spans less than 30 ft (9.2 m) and have aspect ratios less than or equal to 3-to-1. 5.6.2 A.4.2.3 C NC N/A U OTHER DIAPHRAGMS: The diaphragms do not consist of a system other than wood, metal deck, concrete, or horizontal bracing. 5.6.5 A.4.7.1 Connections C NC N/A U WOOD SILL BOLTS: Sillbolts are spacedat 4ft or less with acceptableedge and end distance provided for wood and concrete. 5.7.3.3 A.5.3.7 Note:C =Compliant, NC =Noncompliant, N/A =Not Applicable, and U =Unknown. Seismic Evaluation and Retrofit of Existing Structures 275 60 FACILITY CONDITION ASSESSMENT Bureau Veritas 6021 University Boulevard, Suite 200 | Ellicott City, MD 21043 | www.bvna.com | p 800.733.0660 South San Francisco Municipal Building 33 Arroyo Drive South San Francisco, CA 94080 prepared for Group 4 Architecture, Research + Planning, Inc 211 Linden Avenue South San Francisco, CA 94080 Dawn Merkes PREPARED BY: Bureau Veritas 6021 University Boulevard, Suite 200 Ellicott City, MD 21043 800.733.0660 www.bvna.com BV CONTACT: Jason Mayes Program Manager 800.733.0660 x7293328 Jason.Mayes@bureauveritas.com BV PROJECT #: 162502.24R000-001.017 DATE OF REPORT: October 29, 2024 Updated April 14,2025 ON SITE DATE: September 17, 2024 61 SOUTH SAN FRANCISCO MUNICIPAL BUILDING BUREAU VERITAS PROJECT: 162502.24R000-001.017 www.bvna.com | p 800.733.0660 TABLE OF CONTENTS 1. Executive Summary ................................................................................................. 1 Property Overview and Assessment Details .............................................................. 1 Significant/Systemic Findings and Deficiencies ......................................................... 2 Facility Condition Index (FCI) ..................................................................................... 3 Immediate Needs ....................................................................................................... 4 Key Findings .............................................................................................................. 5 Plan Types ................................................................................................................. 7 2. Building Systems and Site Elements ..................................................................... 8 3. ADA Accessibility .................................................................................................. 14 4. Purpose and Scope ............................................................................................... 16 5. Opinions of Probable Costs .................................................................................. 18 Methodology ............................................................................................................ 18 Definitions ................................................................................................................ 20 6. Certification ............................................................................................................ 22 7. Appendices ............................................................................................................ 23 62 SOUTH SAN FRANCISCO MUNICIPAL BUILDING BUREAU VERITAS PROJECT: 162502.24R000-001.017 1 www.bvna.com | p 800.733.0660 1. Executive Summary Property Overview and Assessment Details General Information Property Type Community Center Number of Buildings One Main Address South San Francisco Municipal Building, 33 Arroyo Drive, South San Francisco, CA 94080 Site Developed 1969; Renovated 1979 Outside Occupants / Leased Spaces Designated spaces are being used by a general contractor that is currently building the new Municipal Building on the other side of El Camino Real. Date(s) of Visit September 17, 2024 Management Point of Contact Group 4 Architecture, Research + Ms. Dawn Merkes 650.871.0709 On-site Point of Contact (POC) John Shea - City of South San Francisco - Facilities Lead john.shea@ssf.net 650.228.9577 Assessment & Report Prepared By Kay van der Have Reviewed By Jason Mayes Program Manager 800.733.0660 x7293328 Jason.Mayes@bureauveritas.com 63 SOUTH SAN FRANCISCO MUNICIPAL BUILDING BUREAU VERITAS PROJECT: 162502.24R000-001.017 2 www.bvna.com | p 800.733.0660 Significant/Systemic Findings and Deficiencies Historical Summary This facility was built in 1969 as a retail store. In the late 1970's the City of South San Francisco bought the property and converted it into a Municipal Services Building, which at the time housed the Fire Department, Police Station, City Council Chambers and Parks Department. The Fire Department is the only current occupants in the recently renovated (2012) section of the building. City of South San Francisco’s future for the Municipal Building is unknown. There are no current plans or future tenants anticipated. Architectural This two-story building is constructed with concrete tilt-up bearing walls with wood roof deck, supported by wood purlins. The concrete walls are supported by continuous spread concrete footings with a cast in place concrete slab. The exterior envelope systems and components were observed to have issues with water penetration seeping through the concrete exterior walls into the building. Efflorescence was observed on the exterior walls and attempted remedies for re-directing the water drainage was noted in the recommended survey. The roofing system was reported to have areas of failure with noted leaking. Interior finishes are heavily worn and are anticipated for lifecycle replacement based on useful life and normal wear. reflecting installation in 2014. Supplemental mechanical equipment within the building consists of split-system units and exhaust fans. Regular maintenance was performed, and replacement of parts and systems are completed as needed. The electrical system equipment, such as transformers, switchboards, distribution panels, wiring, lighting systems, and other components are adequate for the facility demand requirements. The plumbing system throughout the facility is original and in fair working order. Elevators are original and observed to be in poor working condition. Fire alarm and fire suppression systems are present, throughout the building. The fire protection systems are inspected and maintained as needed, however it is recommended to bring these systems up to current codes and standards. All MEPF equipment is anticipated for lifecycle replacement. Site In general, the site has been moderately maintained. The asphalt parking lots are showing deterioration with alligator cracking and areas of uplift from tree roots. Asphalt mill and overlay has been recommended and budgeted in the cost tables provided. Most of the site contains moderate landscaping with low slope, which is served by in-ground irrigation system. Concrete sidewalks and paved brick areas provide pedestrian access to the building. Site lighting is provided by parking lot pole lights and exterior building lighting. Recommended Additional Studies See the Systems Summary tables in the latter sections of this report for recommended additional studies associated with accessibility, moisture intrusion and site drainage. Mechanical, Electrical, Plumbing and Fire (MEPF) The facility heating and cooling is accomplished through package rooftop units with many of the units 64 001 - SOUTH SAN FRANCISCO MUNICIPAL BUILDING BUREAU VERITAS PROJECT: 162502.24R000-001.017 4 www.bvna.com | p 800.733.0660 Facility Condition Index (FCI) One of the major goals of the FCA is to calculate the Facility Condition Index (FCI), which provides a theoretical objective indication of a facility’s overall condition. The FCI is defined as the ratio of the cost of current needs divided by the current replacement value (CRV) of the facility. The chart below presents the industry standard ranges and cut-off points. FCI Ranges and Description 0 – 5% In new or well-maintained condition, with little visual evidence of wear or deficiencies. 5 – 10% Subjected to wear but is still in a serviceable and functioning condition. 10 – 30% Subjected to hard or long-term wear. Nearing the end of its useful or serviceable life. 30% and above Has reached the end of its useful or serviceable life. Renewal is now necessary. The deficiencies and lifecycle needs identified in this assessment provide the basis for a portfolio-wide capital improvement funding strategy. In addition to the current FCI, extended FCI’s have been developed to provide owners the intelligence needed to plan and budget for the “keep-up costs” for their facilities. As such the 3- year, 5-year, and 10-year FCI’s are calculated by dividing the anticipated needs of those respective time periods by current replacement value. As a final point, the FCI’s ultimately provide more value when used to relatively compare facilities across a portfolio instead of being over-analyzed and scrutinized as stand-alone mathematical values. The table below presents the current, 3-year, 5-year, and 10-year FCI’s for this facility: FCI Analysis Replacement Value Total SF Cost/SF $142,440,000 118,700 $1,200 Est Reserve Cost FCI Current $135,700 0.1 % 3-Year $35,657,000 25.0 % 5-Year $36,762,700 25.8 % 10-Year $41,386,200 29.1 % 65 001 - SOUTH SAN FRANCISCO MUNICIPAL BUILDING BUREAU VERITAS PROJECT: 162502.24R000-001.017 5 www.bvna.com | p 800.733.0660 NEEDS OVER TIME: The vertical blue bars in the graphic below represent the year-by-year needs identified for the facility. The orange line forecasts what would happen to the FCI (left Y axis) over time, assuming zero capital expenditures over the next ten years. The dollar amounts allocated for each year are associated with the values along the right Y axis. Needs by Year with Unaddressed FCI Over Time 66 001 - SOUTH SAN FRANCISCO MUNICIPAL BUILDING BUREAU VERITAS PROJECT: 162502.24R000-001.017 6 www.bvna.com | p 800.733.0660 Immediate Needs 001 - South San Francisco Municipal Building P2032 Architectural Study, Building Envelope, Façade, Evaluate/Report NA Performance/Int egrity $12,800 001 - South San Francisco Municipal Building Y1031 ADA Entrances & Doors, Automatic Opener, Install Fair Aged But Functional $110,000 001 - South San Francisco Municipal Building P2032 Engineering Study, Civil, Site Drainage, Evaluate/Report NA Performance/Int egrity $12,800 TOTAL (3 items) $135,700 Location UF Code Description Condition Plan Type Cost 67 001 - SOUTH SAN FRANCISCO MUNICIPAL BUILDING BUREAU VERITAS PROJECT: 162502.24R000-001.017 7 www.bvna.com | p 800.733.0660 Key Findings Roofing in Poor condition. Modified Bitumen 001 - South San Francisco Municipal Building Roof Uniformat Code: B3010 Recommendation: Replace in 2025 Plan Type: Performance/Integrity Cost Estimate: $3,305,100 The roofing has active leaks, and it is showing a lot of bubbled areas - AssetCALC ID: 8180986 Elevator Controls in Poor condition. Automatic, 2 Car Cluster 001 - South San Francisco Municipal Building Elevator Shafts/Utility Uniformat Code: D1010 Recommendation: Replace in 2025 Plan Type: Performance/Integrity Cost Estimate: $36,700 Very choppy ride - AssetCALC ID: 8180832 Parking Lots in Poor condition. Pavement, Asphalt 001 - South San Francisco Municipal Building Site Uniformat Code: G2020 Recommendation: Seal & Stripe in 2025 Plan Type: Performance/Integrity Cost Estimate: $155,700 This needs to be done after the asphalt is replaced - AssetCALC ID: 8180917 Parking Lots in Poor condition. Pavement, Asphalt 001 - South San Francisco Municipal Building Site Uniformat Code: G2020 Recommendation: Mill & Overlay in 2026 Plan Type: Performance/Integrity Cost Estimate: $355,800 Lots of alligator cracking and tree root damage - AssetCALC ID: 8180922 68 001 - SOUTH SAN FRANCISCO MUNICIPAL BUILDING BUREAU VERITAS PROJECT: 162502.24R000-001.017 8 www.bvna.com | p 800.733.0660 Casework in Poor condition. Cabinetry, Standard 001 - South San Francisco Municipal Building Throughout Building Uniformat Code: E2010 Recommendation: Replace in 2026 Plan Type: Performance/Integrity Cost Estimate: $371,200 Casework here is old used and abused - AssetCALC ID: 8180915 Recommended Follow-up Study: Civil, Site Drainage 001 - South San Francisco Municipal Building Building Exterior Uniformat Code: P2030 Recommendation: Evaluate/Report in 2024 Plan Type: Performance/Integrity Cost Estimate: $12,800 At times of heavy rain, water pours from El Camino Real into the garage and the drainage in the garage is not adequate to prevent the garage from flooding. - AssetCALC ID: 8183379 Recommended Follow-up Study: Building Envelope, Façade 001 - South San Francisco Municipal Building Building Exterior Uniformat Code: P2030 Recommendation: Evaluate/Report in 2024 Plan Type: Performance/Integrity Cost Estimate: $12,800 The concrete tilt up walls, leak water into the building, the garage level and the grade level. How to stop this from happening should be researched. - AssetCALC ID: 8183380 Fences & Gates in Poor condition. Vehicle Gate, Chain Link Sliding Electric 001 - South San Francisco Municipal Building Site Uniformat Code: G2060 Recommendation: Replace in 2026 Plan Type: Performance/Integrity Cost Estimate: $18,300 Very rusty - AssetCALC ID: 8180859 69 001 - SOUTH SAN FRANCISCO MUNICIPAL BUILDING BUREAU VERITAS PROJECT: 162502.24R000-001.017 9 www.bvna.com | p 800.733.0660 Plan Types Each line item in the cost database is assigned a Plan Type, which is the primary reason or rationale for the recommended replacement, repair, or other corrective action. This is the “why” part of the equation. A cost or line item may commonly have more than one applicable Plan Type; however, only one Plan Type will be assigned based on the “best” fit, typically the one with the greatest significance and highest on the list below. Plan Type Descriptions & Distribution Safety  An observed or reported unsafe condition that if left unaddressed could result in injury; a system or component that presents potential liability risk. Performance/Integrity  Component or system has failed, is almost failing, performs unreliably, does not perform as intended, and/or poses risk to overall system stability. Accessibility  Does not meet ADA, UFAS, and/or other accessibility requirements. Environmental  Improvements to air or water quality, including removal of hazardous materials from the building or site. Retrofit/Adaptation  Components, systems, or spaces recommended for upgrades in in order to meet current standards, facility usage, or client/occupant needs. Aged But Functional Any component or system that has aged past its industry-average expected useful life (EUL) but is not currently deficient or problematic. Lifecycle/Renewal  Any component or system that is neither deficient nor aged past EUL but for which future replacement or repair is anticipated and budgeted. 70 SOUTH SAN FRANCISCO MUNICIPAL BUILDING BUREAU VERITAS PROJECT: 162502.24R000-001.017 8 www.bvna.com | p 800.733.0660 2. Building Systems and Site Elements Building Systems Summary Address 33 Arroyo Drive, South San Francisco, CA 94080 GPS Coordinates 37.655515, -122.436805 Constructed/Renovated 1969 Renovated 1979 Building Area 118,700 SF Number of Stories 2 above grade with 1 below-grade basement levels System Description Condition Structure Concrete tilt-up bearing walls with wood roof deck supported by wood purlins. The concrete walls are supported by continuous spread concrete footings with a cast in place concrete slab. Fair Facade Primary Wall Finish: Stucco skim coat over the tilt-up concrete walls. Windows: Aluminum Poor Roof Primary: Flat construction with modified bituminous finish Secondary: Gable construction with concrete tiles Poor Interiors Walls: Painted gypsum board, ceramic tile Floors: Carpet, VCT, brick, ceramic tile, wood strip, sealed concrete Ceilings: Painted gypsum board, ACT, wood paneling Fair Elevators Passenger: Two hydraulic cars serving all floors; the main floor and the subterranean parking garage area Poor 71 SOUTH SAN FRANCISCO MUNICIPAL BUILDING BUREAU VERITAS PROJECT: 162502.24R000-001.017 9 www.bvna.com | p 800.733.0660 Building Systems Summary Plumbing Distribution: Copper supply and cast iron and PVC waste and venting Hot Water: Gas and Electric water heaters with integral tanks Fixtures: Toilets, urinals, and sinks in all restrooms Fair HVAC Non-Central System: Packaged units Supplemental components: Ductless split-systems Fair Fire Suppression Wet-pipe sprinkler system, fire extinguishers, and kitchen hood system, dedicated computer/server room chemical system Fair Electrical Source & Distribution: Main switchboard with copper wiring Interior Lighting: LED, linear fluorescent, CFL, halogen, incandescent Emergency Power: Diesel/Propane/Natural gas generator with automatic transfer switch and UPS Fair Fire Alarm Alarm panel with smoke detectors, alarms, pull stations, back- up emergency lights, and exit signs Fair Equipment/Special Commercial kitchen equipment Fair Accessibility Potential moderate/major issues have been identified at the interior areas and a detailed accessibility study is recommended. See the appendix for associated photos and additional information. Additional Studies Beyond the accessibility study recommended above, no additional studies are currently recommended for the building. The tilt-up retaining walls are in poor condition. Water penetrates through the exterior walls causing leaks into the building interior. Water damage has been documented and reported. A professional engineer must be retained to analyze the existing condition, provide recommendations and, if necessary, estimate the scope and cost of any required repairs. The cost of this study is included in the cost tables. Due to the ambiguity of the required repair scope at the time of this assessment, the cost for any possible subsequent repairs is not included. 72 SOUTH SAN FRANCISCO MUNICIPAL BUILDING BUREAU VERITAS PROJECT: 162502.24R000-001.017 10 www.bvna.com | p 800.733.0660 Building Systems Summary Areas Observed Most of the interior spaces were observed to gain a clear understanding of the facility's overall condition. Other areas accessed and assessed included the exterior equipment and assets directly serving the building, the exterior walls of the facility, and the roof. Key Spaces Not Observed Areas of note that were either inaccessible or not observed for other reasons are listed here:  Server Room for 911 Communications; Secure area with no access provided. 73 SOUTH SAN FRANCISCO MUNICIPAL BUILDING BUREAU VERITAS PROJECT: 162502.24R000-001.017 11 www.bvna.com | p 800.733.0660 Site Information Site Area 0.045 acres Parking Spaces 192 total spaces; 52 spaces dedicated to Fire and Police departments, 11 in open lots 41 in the subterranean garage. 140 public spaces, 40 in open lots and 100 in the subterranean garage. One accessible space on the street and one in the open-air lot. System Description Condition Site Pavement Asphalt lots with limited areas of concrete aprons and pavement and adjacent concrete sidewalks, curbs and ramps. Poor Site Development Building-mounted signage; chain link fencing; No dumpster enclosures Limited trash receptacles Fair Landscaping & Topography Limited landscaping features including trees, bushes, and planters Irrigation present Concrete retaining walls Low site slopes throughout Fair Utilities Municipal water and sewer Local utility-provided electric and natural gas Fair Site Lighting Pole-mounted: LED, Metal halide Fair Ancillary Structures None n/a Site Accessibility Presently it does not appear an accessibility study is needed for the exterior and site areas. See the appendix for associated photos and additional information. Site Additional Studies The drainage at the building perimeter is in poor condition. At times of heavy rains water floods from El Camino Real down the slope and into the subterranean garage. the existing drainage system is not adequate, and the garage floods. A professional consultant must be retained to analyze the existing condition, provide recommendations and, if necessary estimate the scope and cost of any required repairs. The cost of this study is included in the cost tables. Due to the ambiguity of the required repair scope at the time of this assessment, the cost for any possible subsequent repairs is not included. 74 SOUTH SAN FRANCISCO MUNICIPAL BUILDING BUREAU VERITAS PROJECT: 162502.24R000-001.017 12 www.bvna.com | p 800.733.0660 Site Information Site Areas Observed The exterior areas within the property boundaries were observed to gain a clear understanding of the site's overall condition. Site Key Spaces Not Observed All key areas of the exterior site were accessible and observed. 75 001 - SOUTH SAN FRANCISCO MUNICIPAL BUILDING BUREAU VERITAS PROJECT: 162502.24R000-001.017 15 www.bvna.com | p 800.733.0660 The table below shows the anticipated costs by trade or building system over the next 20 years. 001 - South San Francisco Municipal Building: System Expenditure Forecast System Immediate Short Term (1-2 yr) Near Term (3-5 yr) Med Term (6-10 yr) Long Term (11-20 yr) TOTAL Facade $0 $0 $474,096 $201,382 $1,041,224 $1,716,702 Roofing $0 $3,404,227 $0 $592,515 $0 $3,996,742 Interiors $0 $0 $4,226,526 $394,121 $4,321,250 $8,941,897 Conveying $0 $37,763 $30,047 $0 $589,470 $657,280 Plumbing $0 $0 $3,571,111 $12,318 $468,169 $4,051,598 HVAC $0 $0 $4,283,377 $923,519 $593,800 $5,800,696 Fire Protection $0 $0 $1,663,132 $26,540 $31,758 $1,721,430 Electrical $0 $0 $12,484,986 $0 $659,546 $13,144,532 Fire Alarm & Electronic Systems $0 $0 $4,425,588 $735,582 $1,170,711 $6,331,881 Equipment & Furnishings $0 $393,834 $442,906 $365,837 $716,506 $1,919,083 Sitework $0 $557,233 $632,140 $1,371,678 $1,600,582 $4,161,633 Follow-up Studies $25,664 $0 $0 $0 $0 $25,664 Accessibility $109,993 $0 $0 $0 $0 $109,993 TOTALS $135,700 $4,393,100 $32,234,000 $4,623,500 $11,193,100 $52,579,400 76 SOUTH SAN FRANCISCO MUNICIPAL BUILDING BUREAU VERITAS PROJECT: 162502.24R000-001.017 14 www.bvna.com | p 800.733.0660 3. ADA Accessibility Generally, Title II of the Americans with Disabilities Act (ADA) prohibits discrimination by entities to access and use of “areas of public accommodations” and “public facilities” on the basis of disability. Regardless of their age, these areas and facilities must be maintained and operated to comply with the Americans with Disabilities Act Accessibility Guidelines (ADAAG). A public entity (i.e. city governments) shall operate each service, program, or activity so that the service, program, or activity, when viewed in its entirety, is readily accessible to and usable by individuals with disabilities. However, this does not: 1. Necessarily require a public entity to make each of its existing facilities accessible to and usable by individuals with disabilities; 2. Require a public entity to take any action that would threaten or destroy the historic significance of an historic property; or 3. Require a public entity to take any action that it can demonstrate would result in a fundamental alteration in the nature of a service, program, or activity or in undue financial and administrative burdens. In those circumstances where personnel of the public entity believe that the proposed action would fundamentally alter the service, program, or activity or would result in undue financial and administrative burdens, a public entity has the burden of proving that compliance with 35.150(a) of this part would result in such alteration or burdens. The decision that compliance would result in such alteration or burdens must be made by the head of a public entity or his or her designee after considering all resources available for use in the funding and operation of the service, program, or activity, and must be accompanied by a written statement of the reasons for reaching that conclusion. If an action would result in such an alteration or such burdens, a public entity shall take any other action that would not result in such an alteration or such burdens but would nevertheless ensure that individuals with disabilities receive the benefits or services provided by the public entity. Removal of barriers to accessibility should be addressed from a liability standpoint in order to comply with federal law, but the barriers may or may not be building code violations. The Americans with Disabilities Act Accessibility Guidelines are part of the ADA federal civil rights law pertaining to the disabled and are not a construction code. State and local jurisdictions have adopted the ADA Guidelines or have adopted other standards for accessibility as part of their construction codes. During the FCA, Bureau Veritas performed a limited high-level accessibility review of the facility non-specific to any local regulations or codes. The scope of the visual observation was limited to the same areas observed while performing the FCA and the categories set forth in the material included in the appendix. It is understood by the Client that the limited observations described herein do not comprise a full ADA Compliance Survey, and that such a survey is beyond the scope of this assessment. A full measured ADA survey would be required to identify more specific potential accessibility issues. Additional clarifications of this limited survey:  This survey was visual in nature and actual measurements were not taken to verify compliance  Only a representative sample of areas was observed  Two overview photos were taken for each subsection regardless of perceived compliance or non-compliance  Itemized costs for individual non-compliant items are not included in the dataset  For any “none” boxes checked or reference to “no issues” identified, that alone does not guarantee full compliance The facility was originally constructed in 1969. The facility was substantially renovated in 1979 and some accessibility improvements appear to have been implemented at that time. 77 SOUTH SAN FRANCISCO MUNICIPAL BUILDING BUREAU VERITAS PROJECT: 162502.24R000-001.017 15 www.bvna.com | p 800.733.0660 A prior accessibility survey was performed by the City of South San Francisco on May 2014. From BV’s perspective and limited analysis of the documents provided in conjunction with our own site visit, it appears that the recommendations from that study have been not yet been addressed. Reference the appendix for specific data, photos, and tables or checklists associated with this limited accessibility survey. A detailed follow-up accessibility study is included as a recommendation because potential moderate to major issues were observed at the subject site. Reference the appendix for specific data, photos, and tables or checklists associated with this limited accessibility survey. 78 SOUTH SAN FRANCISCO MUNICIPAL BUILDING BUREAU VERITAS PROJECT: 162502.24R000-001.017 16 www.bvna.com | p 800.733.0660 4. Purpose and Scope Purpose Bureau Veritas was retained by the client to render an opinion as to the Property’s current general physical condition on the day of the site visit. Based on the observations, interviews and document review outlined below, this report identifies significant deferred maintenance issues, existing deficiencies, and material code violations of record, which affect the Property’s use. Opinions are rendered as to its structural integrity, building system condition and the Property’s overall condition. The report also notes building systems or components that have realized or exceeded their typical expected useful lives. The physical condition of building systems and related components are typically defined as being in one of five condition ratings. For the purposes of this report, the following definitions are used: Condition Ratings Excellent New or very close to new; component or system typically has been installed within the past year, sound and performing its function. Eventual repair or replacement will be required when the component or system either reaches the end of its useful life or fails in service. Good Satisfactory as-is. Component or system is sound and performing its function, typically within the first third of its lifecycle. However, it may show minor signs of normal wear and tear. Repair or replacement will be required when the component or system either reaches the end of its useful life or fails in service. Fair Showing signs of wear and use but still satisfactory as-is, typically near the median of its estimated useful life. Component or system is performing adequately at this time but may exhibit some signs of wear, deferred maintenance, or evidence of previous repairs. Repair or replacement will be required due to the component or system’s condition and/or its estimated remaining useful life. Poor Component or system is significantly aged, flawed, functioning intermittently or unreliably; displays obvious signs of deferred maintenance; shows evidence of previous repair or workmanship not in compliance with commonly accepted standards; has become obsolete; or exhibits an inherent deficiency. The present condition could contribute to or cause the deterioration of contiguous elements or systems. Either full component replacement is needed or repairs are required to restore to good condition, prevent premature failure, and/or prolong useful life. Failed Component or system has ceased functioning or performing as intended. Replacement, repair, or other significant corrective action is recommended or required. Not Applicable Assigning a condition does not apply or make logical sense, most commonly due to the item in question not being present. 79 SOUTH SAN FRANCISCO MUNICIPAL BUILDING BUREAU VERITAS PROJECT: 162502.24R000-001.017 17 www.bvna.com | p 800.733.0660 Scope The standard scope of the Facility Condition Assessment includes the following:  Visit the Property to evaluate the general condition of the building and site improvements, review available construction documents in order to familiarize ourselves with, and be able to comment on, the in-place construction systems, life safety, mechanical, electrical, and plumbing systems, and the general built environment.  Identify those components that are exhibiting deferred maintenance issues and provide cost estimates for Immediate Costs and Replacement Reserves based on observed conditions, maintenance history and industry standard useful life estimates. This will include the review of documented capital improvements completed within the last five-year period and work currently contracted for, if applicable.  Provide a full description of the Property with descriptions of in-place systems and commentary on observed conditions.  Provide a high-level categorical general statement regarding the subject Property’s compliance to Title III of the Americans with Disabilities Act. This will not constitute a full ADA survey, but will help identify exposure to issues and the need for further review.  Obtain background and historical information about the facility from a building engineer, property manager, maintenance staff, or other knowledgeable source. The preferred methodology is to have the client representative or building occupant complete a Pre-Survey Questionnaire (PSQ) in advance of the site visit. Common alternatives include a verbal interview just prior to or during the walk-through portion of the assessment.  Review maintenance records and procedures with the in-place maintenance personnel.  Observe a representative sample of the interior spaces/units, including vacant spaces/units, to gain a clear understanding of the property’s overall condition. Other areas to be observed include the exterior of the property, the roofs, interior common areas, and the significant mechanical, electrical and elevator equipment rooms.  Provide recommendations for additional studies, if required, with related budgetary information.  Provide an Executive Summary at the beginning of this report, which highlights key findings and includes a Facility Condition Index as a basis for comparing the relative conditions of the buildings within the portfolio. 80 SOUTH SAN FRANCISCO MUNICIPAL BUILDING BUREAU VERITAS PROJECT: 162502.24R000-001.017 18 www.bvna.com | p 800.733.0660 5. Opinions of Probable Costs Cost estimates are embedded throughout this report, including the very detailed Replacement Reserves report in the appendix. The cost estimates are predominantly based on construction rehabilitation costs developed by the RSMeans data from Gordian. While the RSMeans data from Gordian is the primary reference source for the Bureau Veritas cost library, secondary and supporting sources include but are not limited to other industry experts work, such as Marshall & Swift and CBRE Whitestone. For improved accuracy, additional research integrated with Bureau Veritas’s historical experience with past costs for similar properties, city cost indexes, and assumptions regarding future economic conditions also come into play when deemed necessary. Invoice or bid documents provided either by the owner or facility construction resources may be reviewed early in the process or for specific projects as warranted. Opinions of probable costs should only be construed as preliminary, order of magnitude budgets. Actual costs most probably will vary from the consultant’s opinions of probable costs depending on such matters as type and design of suggested remedy, quality of materials and installation, manufacturer and type of equipment or system selected, field conditions, whether a physical deficiency is repaired or replaced in whole, phasing or bundling of the work (if applicable), quality of contractor, quality of project management exercised, market conditions, use of subcontractors, and whether competitive pricing is solicited, etc. Certain opinions of probable costs cannot be developed within the scope of this guide without further study. Opinions of probable cost for further study should be included in the FCA. Renovation triggers modifications to improve safety, accessibility, and energy use of a structure. There are specific requirements that need to be fulfilled to comply with their building renovation projects with state regulations. Without knowing what the intended use of the renovated building may be some or all of these requirements may be triggered. Methodology Based upon site observations, research, and judgment, along with referencing Expected Useful Life (EUL) tables from various industry sources, Bureau Veritas opines as to when a system or component will most probably necessitate replacement. Accurate historical replacement records, if provided, are typically the best source of information. Exposure to the elements, initial quality and installation, extent of use, the quality and amount of preventive maintenance exercised, etc., are all factors that impact the effective age of a system or component. As a result, a system or component may have an effective age that is greater or less than its actual chronological age. The Remaining Useful Life (RUL) of a component or system equals the EUL less its effective age, whether explicitly or implicitly stated. Projections of Remaining Useful Life (RUL) are based primarily on age and condition with the presumption of continued use and maintenance of the Property similar to the observed and reported past use and maintenance practices, in conjunction with the professional judgment of Bureau Veritas’s assessors. Significant changes in occupants and/or usage may affect the service life of some systems or components. Where quantities could not be or were not derived from an actual construction document take-off or facility walk-through, and/or where systemic costs are more applicable or provide more intrinsic value, budgetary square foot and gross square foot costs are used. Estimated costs are based on professional judgment and the probable or actual extent of the observed defect, inclusive of the cost to design, procure, construct and manage the corrections. To account for differences in prices between locations, the base costs are modified by geographical location factors to adjust for to market conditions, transportation costs, or other local contributors. When requested by the client, the costs may be further adjusted by several additional factors including; labor rates (prevailing minimum wage), general contractor fees for profit and overhead, and insurance. If desired, costs for design and permits, and a contingency factor, may also be included in the calculations. 81 SOUTH SAN FRANCISCO MUNICIPAL BUILDING BUREAU VERITAS PROJECT: 162502.24R000-001.017 19 www.bvna.com | p 800.733.0660 Building Code Structural Upgrade Triggers The CBC states that an existing building will have to “conform to the seismic requirements for a new structure” when a change of use is contemplated that intensifies the use (e.g., increase the number of occupants and/or the amount of combustible materials stored in the building). This means that the building, as renovated, will have to meet all current strength requirements, and depending on the age of the existing building, this can be costly. This is due in part to the code-required strength levels that have systematically increased over several decades as engineers have concluded that the expected demands on buildings from earthquakes in our area are greater than previously anticipated. A structural engineer will need to complete an ASCE-41 analysis. Accessibility Requirements Accessibility or ‘ability to access’ is in reference to the space or design to be usable by people with disabilities. The American Disabilities Act (ADA) of 1990 requires new commercial buildings to be accessible and businesses to make accessibility upgrades during renovation projects. For example, and at a minimum, interior improvements for accessibility may be bathroom retrofits, widening doorways, and adjusting drinking fountains, whereas exterior remodels can be disabled parking, entry ramps, signage, and others. There are provisions for existing buildings, but the idea is removing barriers if full compliance is not possible. Energy Code California energy code requires the greatest degree of compliance particularly when the property is renovated in a way that increases the energy consumption. For example, the conversion of a warehouse to a shopping mall would demand greater energy consumption, and hence, is subjected to energy code requirements. It is crucial to remember that energy code compliance is also mandatory when there is a scope for renovating a commercial building without a drastic increase in construction costs. The California Energy Commission (CEC) has adopted the 2022 Building Energy Efficiency Standards or Energy Code for the application of both newly constructed and renovated buildings. This mandate will require real estate builders to install solar panels and battery storage in all residential dwellings and commercial structures like hotels, medical offices, retail spaces, restaurants, schools, corporate offices, etc. With a mission to transform California into a 100% clean energy state, the CEC photovoltaic and battery storage standards went into effect in January 2023. Fire Code Requirements The California Fire Code (CFC), Internation Fire Code (IFC) and National Fire Protection Association (NFPA) encompasses regulations that aim to safeguard life and commercial property from the hazards of fire and explosion, dangers of working with combustible materials, and risky conditions in the use of occupancy of buildings. The listed Fire Codes also suggests provisions related to emergency response personnel. Some of the topics the listed fire code provisions cover are as follows:  Sprinkler systems  Water supplies  Emergency Planning  Maintenance of fire protection equipment  Fire department access  Preventing fires and eliminating fire hazards  Fire alarm systems  Provisions for emergency responder communication  Requirements for an energy storage system (ESS) and more *Other Codes may apply. 82 SOUTH SAN FRANCISCO MUNICIPAL BUILDING BUREAU VERITAS PROJECT: 162502.24R000-001.017 20 www.bvna.com | p 800.733.0660 Occupancy Code Requirements Changes in occupancy during renovation, whether it’s an increase in the number of tenants, number of combustible materials, or accommodation of tenants who need evacuation assistance trigger the highest level of California Building Code, International Building Code and NFPA 101 Life Safety compliance in terms of occupancy. Depending on the commercial project, occupancy-related modifications may include alterations to the following components:  Existing structural system  HVAC systems  Electrical wiring  Plumbing fixtures  Fire protection systems  Interior finishes  Upgrades to the means of egress A change in the occupancy intention is also subject to code compliance. For example, a shift of occupancy from office use (business occupancy) to factory use (industrial occupancy) means an increase in combustible materials and occupant load due to heavyweight manufacturing equipment. California Green Building Standards Code California Green Building Standards Code, also known as ‘CALGreen’ entail regulations for energy efficiency, water conservation and efficiency, material and resource conservation, and environmental quality. CALGreen provisions are directed to all newly developed and under renovation commercial properties. Designers, general contractors, and project owners should take into consideration these California Building Code provisions while undertaking a non-residential building renovation:  About 20% savings of potable water  Special standards for plumbing fixtures and fittings  Construction waste management plan (up to 50% non-hazardous construction or demolition debris should be recycled or salvaged)  Conduction waste reduction to at least 50%  Finish material pollution control  Acoustical control for exterior noise and interior sound transmission The purpose of this standard is to minimize negative impact of renovations on the environment as well as promote sustainable design and construction practices. Definitions Immediate Needs Immediate Needs are line items that require immediate action as a result of: (1) material existing or potential unsafe conditions, (2) failed or imminent failure of mission critical building systems or components, or (3) conditions that, if not addressed, have the potential to result in, or contribute to, critical element or system failure within one year or will most probably result in a significant escalation of its remedial cost. For database and reporting purposes the line items with RUL=0, and commonly associated with Safety or Performance/Integrity Plan Types, are considered Immediate Needs. 83 SOUTH SAN FRANCISCO MUNICIPAL BUILDING BUREAU VERITAS PROJECT: 162502.24R000-001.017 21 www.bvna.com | p 800.733.0660 Replacement Reserves Cost line items traditionally called Replacement Reserves (equivalently referred to as Lifecycle/Renewals) are for recurring probable renewals or expenditures, which are not classified as operation or maintenance expenses. The replacement reserves should be budgeted for in advance on an annual basis. Replacement Reserves are reasonably predictable both in terms of frequency and cost. However, Replacement Reserves may also include components or systems that have an indeterminable life but, nonetheless, have a potential for failure within an estimated time period. Replacement Reserves generally exclude systems or components that are estimated to expire after the reserve term and are not considered material to the structural and mechanical integrity of the subject property. Furthermore, systems and components that are not deemed to have a material effect on the use of the Property are also excluded. Costs that are caused by acts of God, accidents, or other occurrences that are typically covered by insurance, rather than reserved for, are also excluded. Replacement costs are solicited from ownership/property management, Bureau Veritas’s discussions with service companies, manufacturers' representatives, and previous experience in preparing such schedules for other similar facilities. Costs for work performed by the ownership’s or property management’s maintenance staff are also considered. Bureau Veritas’s reserve methodology involves identification and quantification of those systems or components requiring capital reserve funds within the assessment period. The assessment period is defined as the effective age plus the reserve term. Additional information concerning system or component replacement costs (in today's dollars), typical expected useful lives, and remaining useful lives were estimated so that a funding schedule could be prepared. The Replacement Reserves Schedule presupposes that all required remedial work has been performed or that monies for remediation have been budgeted for items defined as Immediate Needs. For the purposes of ‘bucketizing’ the System Expenditure Forecasts in this report, the Replacement Reserves have been subdivided and grouped as follows: Short Term (years 1-3), Near Term (years 4-5), Medium Term (years 6-10), and Long Term (years 11-20). Key Findings In an effort to highlight the most significant cost items and not be overwhelmed by the Replacement Reserves report in its totality, a subsection of Key Findings is included within the Executive Summary section of this report. Key Findings typically include repairs or replacements of deficient items within the first five-year window, as well as the most significant high-dollar line items that fall anywhere within the ten-year term. Note that while there is some subjectivity associated with identifying the Key Findings, the Immediate Needs are always included as a subset. 84 SOUTH SAN FRANCISCO MUNICIPAL BUILDING BUREAU VERITAS PROJECT: 162502.24R000-001.017 22 www.bvna.com | p 800.733.0660 6. Certification Group4 - South San Francisco Municipal Building, FCA (the Client) retained Bureau Veritas to perform this Facility Condition Assessment in connection with its continued operation of South San Francisco Municipal Building, 33 Arroyo Drive, South San Francisco, CA 94080, the “Property”. It is our understanding that the primary interest of the Client is to locate and evaluate materials and building system defects that might significantly affect the value of the property and to determine if the present Property has conditions that will have a significant impact on its continued operations. The conclusions and recommendations presented in this report are based on the brief review of the plans and records made available to our Project Manager during the site visit, interviews of available property management personnel and maintenance contractors familiar with the Property, appropriate inquiry of municipal authorities, our Project Manager’s walk-through observations during the site visit, and our experience with similar properties. No testing, exploratory probing, dismantling or operating of equipment or in-depth studies were performed unless specifically required under the Purpose and Scope section of this report. This assessment did not include engineering calculations to determine the adequacy of the Property’s original design or existing systems. Although walk-through observations were performed, not all areas may have been observed (see Section 1 for specific details). There may be defects in the Property, which were in areas not observed or readily accessible, may not have been visible, or were not disclosed by management personnel when questioned. The report describes property conditions at the time that the observations and research were conducted. This report has been prepared for and is exclusively for the use and benefit of the Client identified on the cover page of this report. The purpose for which this report shall be used shall be limited to the use as stated in the contract between the client and Bureau Veritas. This report, or any of the information contained therein, is not for the use or benefit of, nor may it be relied upon by any other person or entity, for any purpose without the advance written consent of Bureau Veritas. Any reuse or distribution without such consent shall be at the client's or recipient's sole risk, without liability to Bureau Veritas. Prepared by: Kay van der Have Project Assessor Reviewed by: Jason Mayes Program Manager 800.733.0660 x7293328 Jason.Mayes@bureauveritas.com 85 SOUTH SAN FRANCISCO MUNICIPAL BUILDING BUREAU VERITAS PROJECT: 162502.24R000-001.017 23 www.bvna.com | p 800.733.0660 7. Appendices Appendix A: Photographic Record Appendix B: Site Plan(s) Appendix C: Pre-Survey Questionnaire(s) Appendix D: Accessibility Review and Photos Appendix E: Component Condition Report Appendix F: Replacement Reserves 86 SOUTH SAN FRANCISCO MUNICIPAL BUILDING BUREAU VERITAS PROJECT: 162502.24R000-001.017 www.bvna.com | p 800.733.0660 Appendix A: Photographic Record 87 SOUTH SAN FRANCISCO MUNICIPAL BUILDING BUREAU VERITAS PROJECT: 162502.24R000-001.017 Photographic Overview www.bvna.com | p 800.733.0660 1 - FRONT ELEVATION 2 - FRONT ELEVATION 3 - LEFT ELEVATION 4 - PARTIAL RIGHT ELEVATION 5 - FACADE 6 - MODIFIED BITUMEN ROOFING 88 SOUTH SAN FRANCISCO MUNICIPAL BUILDING BUREAU VERITAS PROJECT: 162502.24R000-001.017 Photographic Overview www.bvna.com | p 800.733.0660 7 - TILE ROOFING 8 - POLICE/FIRE DEPARTMENT GARAGE 9 - PUBLIC GARAGE 10 - FIRE DEPARTMENT 11 - FIRE DEPARTMENT 12 - INTERIOR 89 SOUTH SAN FRANCISCO MUNICIPAL BUILDING BUREAU VERITAS PROJECT: 162502.24R000-001.017 Photographic Overview www.bvna.com | p 800.733.0660 13 - JAIL INTERVIEW ROOM 14 - PUBLIC ENTRY 15 - RESTROOM FIXTURES 16 - WATER HEATER 17 - EMERGENCY GENERATOR 18 - HVAC EQUIPMENT 90 SOUTH SAN FRANCISCO MUNICIPAL BUILDING BUREAU VERITAS PROJECT: 162502.24R000-001.017 www.bvna.com | p 800.733.0660 Appendix B: Site Plan (s ) 91 Site Plan Project Number Project Name 162502.24R000-001.017 South San Francisco Municipal Building Source On-Site Date Google September 18, 2024 92 SOUTH SAN FRANCISCO MUNICIPAL BUILDING BUREAU VERITAS PROJECT: 162502.24R000-001.017 www.bvna.com | p 800.733.0660 Appendix C: Pre -Survey Questionnaire (s ) 93 Building / Facility Name:South San Francisco Municipal Building Name of person completing form:John Shea Title / Association w/ property:Facilities lead Length of time associated w/ property:16 years Date Completed:September 18, 2024 Phone Number:650.228.9577 Year(s) constructed Building size in SF Major Renovation/Rehabilitation Water heaters have been replaced, aged fire sprinklers were being replaced at the time of the assessment visit Unknown Foundation leaks, roof leaks BV FACILITY CONDITION ASSESSMENT: PRE-SURVEY QUESTIONNAIRE Directions: Please answer all questions to the best of your knowledge and in good faith. Please provide additional details in the Comments column, or backup documentation for any Yes responses. Data Overview 1 2 3 List other significant capital improvements (focus on recent years; provide approximate date). 4 List any major capital expenditures planned/requested for the next few years. Have they been budgeted? 5 Describe any on-going extremely problematic, historically chronic, or immediate facility needs. 6 Response Accessibility 81,000 SF Additional Detail Method of Completion: Facade Roof Interiors HVAC Electrical Site Pavement Transfer switch for generator 2023 2018 1960 Constructed 1979 Renovated Year Fire department renovations were in 2017 (BV's review of the structural documentation leads to a building size of118,700 SF) 94 Mark the column corresponding to the appropriate response. Please provide additional details in the Comments column, or backup documentation for any Yes responses. (NA indicates "Not Applicable", Unk indicates "Unknown") Are there any problems with foundations or structures, like excessive settlement? Are there any wall, window, basement or roof leaks? Has any part of the facility ever contained visible suspect mold growth, or have there been any indoor air quality complaints? Are your elevators unreliable, with frequent service calls? Are there any plumbing leaks, water pressure, or clogging/backup issues? Have there been any leaks or pressure problems with natural gas, HVAC piping, or steam service? Are any areas of the facility inadequately heated, cooled or ventilated? Poorly insulated areas? Is the electrical service outdated, undersized, or problematic? Are there any problems or inadequacies with exterior lighting? Is site/parking drainage inadequate, with excessive ponding or other problems? Are there any other unresolved construction defects or significant issues/hazards at the property that have not yet been identified above? ADA: Has an accessibility study been previously performed? If so, when? ADA: Have any ADA improvements been made to the property since original construction? Describe. ADA: Has building management reported any accessibility-based complaints or litigation? Leaks through the foundation/retaining wall Roof, basement walls Old but still ok Problematic, if the water is turned off, turning on is a problem - can cause leaks through the system Outdated Lots of water on the El Camino side, 2 sump pumps needed and can not keep up if it is a heavy rain. Flooding the public side of the garage Gun range has been decommissioned, may be problematic Exterior ramps Question Response Comments 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Signature of POCSignature of Assessor Yes No Unk NA Construction offices for work across El Camino (loaned, not leased)Are any areas of the property leased to outside occupants?21 95 SOUTH SAN FRANCISCO MUNICIPAL BUILDING BUREAU VERITAS PROJECT: 162502.24R000-001.017 www.bvna.com | p 800.733.0660 Appendix D: Accessibility Review and Photos 96 Visual Survey - 2010 ADA Standards for Accessible Design Major Issues (ADA study recommended) Moderate Issues (ADA study recommended) Minor IssuesCategory Parking Parking area Exterior Accessible Route Building Entrances Interior Accessible Route Elevators Elevator control panelSize of cab Public Restrooms Toilet stall Kitchens/Kitchenettes Parks & Rec Playgrounds and Swimming Pools NA Other NA Hospitality NA None* *be cognizant that if the “None” box is checked that does not guarantee full compliance; this study is limited in nature Facility History and Interview Yes No UnkQuestion Comments Has an accessibility study been previously performed? If so, when? Have any ADA improvements been made to the property since original construction? Describe. Has building management reported any accessibility-based complaints or litigation? Exterior ramps 1 2 3 Property Name: BV Project Number: South San Francisco Municipal Building 162502.24R000-001.017 South San Francisco Municipal Building: Accessibility Issues 97 South San Francisco Municipal Building: Photographic Overview OVERVIEW OF ACCESSIBLE PARKING AREA CLOSE-UP OF STALL ACCESSIBLE RAMP CURB CUT ACCESSIBLE ENTRANCE AUTOMATIC DOOR OPENER 98 South San Francisco Municipal Building: Photographic Overview ACCESSIBLE INTERIOR RAMP SELF-SERVICE AREA LOBBY LOOKING AT CABS (WITH DOORS OPEN)IN-CAB CONTROLS TOILET STALL OVERVIEW SINK, FAUCET HANDLES AND ACCESSORIES 99 South San Francisco Municipal Building: Photographic Overview SINK CLEARANCE OVEN WITH CONTROLS 100 SOUTH SAN FRANCISCO MUNICIPAL BUILDING BUREAU VERITAS PROJECT: 162502.24R000-001.017 www.bvna.com | p 800.733.0660 Appendix E: Component Condition Report 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 SOUTH SAN FRANCISCO MUNICIPAL BUILDING BUREAU VERITAS PROJECT: 162502.24R000-001.017 www.bvna.com | p 800.733.0660 Appendix F: Replacement Reserves 116 117 118 119 4/23/2025 SSF Muncipal Service Building Reno Cost 59,000 SF Full Renovation w/Structural Upgrade (Risk Category IV) Project Budget Budget Project Budget Units Cost/Unit Extended Building Full Reno 1st Floor 59,000 SF 600/SF$ 35,400,000$ Basement Reno 59,000 SF 70/SF$ 4,130,000$ Structural Upgrade 118,000 SF 68/SF$ 7,980,804$ Contingency 15%7,126,621$ Subtotal, Building 59,000 SF 54,637,000$ Site 2.0 Acres Site demolition/prep 13,000 SF 10/SF$ 130,000$ Hardscape development 13,000 SF 25/SF$ 325,000$ Landscape development 13,000 SF 20/SF$ 260,000$ Parking Underbuilding (basement)0 SF 70/SF$ -$ Contingency 15%-$ Subtotal, Site 800,000$ FF&E, Signage, and Technology Furniture/casework 59,000 SF 35/SF$ 2,065,000$ Technology 59,000 SF 20/SF$ 1,180,000$ Signage 59,000 SF 5/SF$ 295,000$ Contingency 10%354,000$ Subtotal, FF&E 3,900,000$ Construction Budget 59,337,000$ Public Art Public Art Allowance 0% of construction -$ Soft Costs Design and engineering 10-15% of construction 10% 5,933,700$ Special studies and misc. 3-5% of construction 5% 2,966,900$ Testing and commissioning 1-3% of construction 3% 1,780,100$ Other fees, permits, etc. 1-3% of construction 3% 1,780,100$ Contingency 10% of soft costs 1,246,080$ Subtotal, Soft Costs 13,700,000$ TOTAL PROJECT BUDGET RANGE, Q2 2025 DOLLARS LOW 73,037,000$ Escalation - add for construction start date in: 2026 3-5%/year 4.0% 75,958,480$ 2027 3-5%/year 4.0% 78,996,819$ 2028 3-5%/year 4.0% 82,156,692$ NOTES:1) Conceptual budgets are for planning purposes only. They have been developed on a general cost per square foot basis without detailed site or building information. Depending on project specifics, actual project costs can vary. 2) Conceptual budgets are not necessarily comprehensive and may not include all costs, such as land purchase, demolition of existing structures, structured parking, temporary facilities, etc. G:\21565-03 SSF MSB FCA\O-Estimates\2025 04 21 Project Budget Options v2 120 4/23/2025 SSF Muncipal Service Building Reno Cost 30,000 SF 30,000 SF Partial Renovation Project Budgets LOW END HIGH END Project Budget Units Cost/Unit Extended Extended Building 30,000 SF 500/SF$ 15,000,000$ -$ 30,000 SF 600/SF$ 18,000,000$ 59,000 SF 70/SF$ 4,130,000$ $ 4,130,000 Partial Reno Low End Partial Reno High End Underbuilding parking Contingency 15%2,250,000$ 2,700,000$ Subtotal, Building 30,000 SF 21,380,000$ 24,800,000$ Site 2.0 Acres Site demolition/prep 6,500 SF 10/SF$ 65,000$ 65,000$ Hardscape development 6,500 SF 25/SF$ 162,500$ 162,500$ Landscape development 6,500 SF 20/SF$ 130,000$ 130,000$ Contingency 15%53,625$ 53,625$ Subtotal, Site 500,000$ 500,000$ FF&E, Signage, and Technology Furniture/casework 30,000 SF 35/SF$ 1,050,000$ 1,050,000$ Technology 30,000 SF 20/SF$ 600,000$ 600,000$ Signage 30,000 SF 5/SF$ 150,000$ 150,000$ Contingency 10%180,000$ 180,000$ Subtotal, FF&E 2,000,000$ 2,000,000$ Construction Budget 23,880,000$ 27,300,000$ Public Art Public Art Allowance 0% of construction -$ -$ Soft Costs Design and engineering 10-15% of construction 10% 2,388,000$ 15% 4,095,000$ Special studies and misc. 3-5% of construction 5% 1,194,000$ 5% 1,365,000$ Testing and commissioning 1-3% of construction 3%716,400$ 3% 819,000$ Other fees, permits, etc. 1-3% of construction 3%716,400$ 3% 819,000$ Contingency 10% of soft costs 501,480$ 709,800$ Subtotal, Soft Costs 5,500,000$ 7,800,000$ TOTAL PROJECT BUDGET RANGE, Q2 2025 DOLLARS LOW 29,380,000$ HIGH 35,100,000$ Escalation - add for construction start date in: 2026 3-5%/year 4.0% 30,555,200$ 36,504,000$ 2027 3-5%/year 4.0% 31,777,408$ 37,964,160$ 2028 3-5%/year 4.0% 33,048,504$ 39,482,726$ NOTES:1) Conceptual budgets are for planning purposes only. They have been developed on a general cost per square foot basis without detailed site or building information. Depending on project specifics, actual project costs can vary. 2) Conceptual budgets are not necessarily comprehensive and may not include all costs, such as land purchase, demolition of existing structures, structured parking, temporary facilities, etc. G:\21565-03 SSF MSB FCA\O-Estimates\2025 04 21 Project Budget Options v2 121 Soil Vapor Monitoring Report – Fourth Quarter 2024 City of South San Francisco Municipal Services Building and Social Hall 33 Arroyo Drive South San Francisco, California City of South San Francisco 400 Grand Avenue | South San Francisco, California 94080 April 23, 2025 | Project No. 403151011 Geotechnical | Environmental | Construction Inspection & Testing | Forensic Engineering & Expert Witness Geophysics | Engineering Geology | Laboratory Testing | Industrial Hygiene | Occupational Safety | Air Quality | GIS 122 1301 Marina Village Parkway, Suite 110 | Alameda, CA 94501| p. 510.343.3000 | www.ninyoandmoore.com Soil Vapor Monitoring Report - Fourth Quarter 2024 City of South San Francisco Municipal Services Building and Social Hall 33 Arroyo Drive South San Francisco, California Ms. Nell Selander Director Economic & Community Development Department City of South San Francisco Economic and Community Development Department 400 Grand Avenue | South San Francisco, California 94080 April 23, 2025 | Project No. 403151011 Lev Shnaider Aubrey K. Cool, PG 7659 Staff Environmental Scientist Principal Geologist Gregory B. Roberts Project Environmental Scientist LXS/GBR/AKC/gvr 123 Ninyo & Moore | 33 Arroyo Drive, South San Francisco, California | 403151011 | April 23, 2025 i CONTENTS 1 INTRODUCTION 1 2 BACKGROUND 1 2.1 Site Description 1 2.2 Site Geology 1 2.3 Previous Work 1 3 SOIL VAPOR SAMPLING ACTIVITIES 3 3.1 Sampling Procedures 3 3.2 Laboratory Analyses 4 4 SOIL VAPOR SAMPLING RESULTS 4 4.1 Volatile Organic Compounds 4 4.2 Leak Detection Agent 5 4.3 Fixed Gases 5 5 CONCLUSIONS 5 6 RECOMMENDATIONS 6 7 LIMITATIONS 6 8 REFERENCES 8 TABLES 1 – Soil Vapor Analytical Results - VOCs 2 – Soil Vapor Analytical Results - Fixed Gases FIGURES 1 – Site Location 2 – Site Plan 3 – Historical Select Soil Vapor Data 4 – Select Soil Vapor Data APPENDICES A – Soil Vapor Sampling Sheets B – Laboratory Analytical Report 124 Ninyo & Moore | 33 Arroyo Drive, South San Francisco, California | 403151011 | April 23, 2025 1 1 INTRODUCTION Ninyo & Moore has prepared this Soil Vapor Monitoring Report for the City of South San Francisco (City), relating to the property located at 33 Arroyo Drive, California (Site, Figure 1). In accordance with our recommendations from the May 17, 2024 Soil Vapor Monitoring Report – Second Quarter 2024, Ninyo & Moore conducted additional soil vapor sampling using standard soil vapor sampling procedures from the California Department of Toxic Substance Control (DTSC) guidance document Advisory Active Soil Gas Investigations (DTSC, 2015) to assess seasonal and temporal variability to confirm consistency in the results. The activities summarized in this report were performed in accordance with Ninyo & Moore's September 23, 2024 Proposal for Additional Soil Vapor Sampling and Reporting. 2 BACKGROUND 2.1 Site Description The Site is located at 33 Arroyo Drive in South San Francisco, San Mateo County, California (Figure 1). It is situated on one parcel totaling approximately 1.87 acres of land designated by San Mateo County Assessor's Parcel Number 010400270. The Site is developed with the City of South San Francisco's (SSF) Municipal Services Building, which is occupied by the SSF Fire Department Station 63 (Figure 2). The exterior of the building consists of an asphalt parking area on the northeastern end of the building, parking areas on the northwestern exterior of the building, and access to the parking garage and fire department area on the southwestern end of the building. 2.2 Site Geology In general, the soils observed beneath the Site during the Phase II Environmental Site Assessment (ESA) conducted on March 17, 2022 are primarily silty sand to approximately 5.5-feet below ground surface (bgs), which is the maximum depth explored. Two of the borings were also observed to contain a 1-ft interval of clayey sand and/or sandy silt at 4 feet bgs. 2.3 Previous Work According to a Phase I ESA conducted by Ninyo & Moore, the Site has most recently been occupied by the South San Francisco Municipal Services Building and Social Hall (Ninyo & Moore, 2021). Available records indicated that a 2,500-gallon diesel underground storage tank (UST) was removed in 1998 from the exterior lot on the south end of the building, and there is an existing 2,000-gallon diesel above ground storage tank (AST) on the south end of the building 125 Ninyo & Moore | 33 Arroyo Drive, South San Francisco, California | 403151011 | April 23, 2025 2 (Ninyo & Moore, 2021). The Site is also adjacent to the former My Cleaners dry cleaning facility located at 1053 El Camino Real, South San Francisco. The former My Cleaners is considered a recognized environmental condition (REC) due to the reported release of dry-cleaning compounds into the subsurface. Based on the findings of the Phase I ESA, Ninyo & Moore recommended conducting a sub-slab soil vapor assessment inside the building as well as beneath the parking garage to assess potential vapor migration issues associated with the former southeast-adjoining My Cleaners facility. Ninyo and Moore conducted a Phase II ESA in 2022 (Ninyo & Moore, 2022), collecting soil samples from four soil borings, installing four soil vapor wells (SV-1 through SV-4) to 5-feet bgs and collecting soil vapor samples. Based on the soil analytical results and visual observations during the field sampling, shallow Site soils do not appear to be impacted with volatile organic compounds (VOCs). Results from the soil vapor wells indicated that the concentration of cis-1,2-dichloroethene (cis-1,2-DCE), trichloroethene (TCE) and vinyl chloride in soil vapor probe SV-2 were above their respective San Francisco Bay Regional Water Quality Control Board (RWQCB) Tier 1 and Residential Environmental Screening Levels (ESLs; Ninyo & Moore, 2022). SV-2 is located directly north and adjacent to the former My Cleaners dry cleaning facility. Ninyo and Moore recommended additional soil vapor sampling to validate the exceedances. On September 21, 2023, due to continued presence of water impacting vapor wells SV-2 and SV-3, Ninyo & Moore oversaw the destruction of these vapor wells, performed by VTS Drilling, LLC of Hayward, California, a C-57 licensed driller. Following the destruction of soil vapor wells SV-2 and SV-3, sub slab Vapor Pins® (SSV-2 and SSV-3) were installed approximately 1-ft away from the former soil vapor well locations, SV-2 and SV-3, respectively (Figure 2). Additional soil vapor sampling was performed on September 29 and April 3, 2024 to evaluate potential contamination to shallow soil vapor and fill data gaps from the previous soil vapor sampling results at the Site. Results of the April 2024 soil vapor sampling, were: • Benzene was reported at 9.3 micrograms per cubic meter (μg/m3) in vapor probe SV-4, which exceeds the 3.2 μg/m3 Residential ESL and is below the 14 μg/m3 Commercial ESL. The detection is also below State Water Resources Control Board (SWRCB) Low-Threat Underground Storage Tank Case Closure Policy (LTCP) criteria for residential use with no bioattenuation zone. • Tetrachloroethene (PCE) was detected at 4.9 μg/m3 in SV-1, 7.9 μg/m3 in SSV-2, and 48 μg/m3 in SSV-3. The concentration detected in SSV-3 exceeds the Residential ESL of 15 μg/m3 but not the Commercial ESL of 67 μg/m3. Select soil vapor data from previous sampling events are graphically presented on Figure 3. 126 Ninyo & Moore | 33 Arroyo Drive, South San Francisco, California | 403151011 | April 23, 2025 3 3 SOIL VAPOR SAMPLING ACTIVITIES To evaluate potential seasonal and temporal variability to confirm consistency in the results, Ninyo & Moore conducted additional soil vapor sampling. On November 20, 2024, we collected soil vapor samples from the two soil vapor wells (SV-1 and SV-4) and two sub-slab soil vapor pins (SSV-2 and SSV-3) using laboratory-supplied sampling materials. Soil vapor sampling forms are presented in Appendix A. 3.1 Sampling Procedures The soil vapor wells and pins were sampled according to standard soil vapor sampling procedures and the DTSC soil vapor investigation Advisory (DTSC, 2015), as described below. • Vapor Sampling Equipment and Manifold: A stainless-steel sample-train was constructed, with a 1-liter stainless-steel Summa® sample canister connected by a stainless-steel sample manifold. For each soil vapor sample, the sample train was connected to the soil vapor probe tubing. The manifolds, filters, gauges, flow controllers and Summa® canisters were supplied by a state-certified laboratory. A new manifold was used for each soil vapor sampling. The flow controller was pre-set by the laboratory to a 150-milliliters-per-minute (mL/min) flow-rate. • Shut-In Test: After connecting the Summa® canister and sample manifolds to the Teflon tubing, the Swagelok® ball valve was closed during shut-in test. Using a syringe to create a vacuum and then closed to start the shut-in test. At the onset of the shut-in test the initial vacuum and time was recorded on field notes. The shut-in test continued for approximately 2 to 5 minutes. If the vacuum pressure remained constant for the duration of the shut-in test, the test was considered successful (leak free). If the vacuum pressure changed, the shut-in test was discontinued, the manifold fittings were double checked and tightened, and the shut-in test was repeated until the vacuum pressure remained constant. • Leak Detection: Leaks in the sampling system could cause the dilution of analytical samples with ambient air. The leak-detection compound helium was used to evaluate whether leaks are present in the sampling equipment. With the exception of the tubing connections and sampling port, all of the manifold connections were successfully leak tested prior to sampling; therefore, only the tubing connections and sampling port could be possible sources of leakage. A shroud enclosed the sample train and helium gas was pumped into the shroud for the duration of sample collection in order to test for sample-train leaks and the well-head integrity. The helium was maintained at a concentration of at least 20 percent (%) within the shroud. The shroud helium-concentrations were documented on field datasheets allowing for calculation of the magnitude of atmospheric leakage if needed. The RWQCB and the DTSC allow for a maximum 5% leakage of ambient air into a sample container before the results are considered to be compromised. For example, with 20% helium maintained within the shroud, any helium detection over 1% in the sample indicates the sample may be compromised. • Purge Volume – Vapor Probes: Following the shut-in test, the tubing and filter-pack void space volume were purged of three volumes of vapor. • Purging: Prior to sample collection, purging of the air within the manifold and tubing was performed in order to collect samples representative of the subsurface soil vapor conditions. Purging was conducted using either a Gillian Gilair pump or a syringe at a consistent flow 127 Ninyo & Moore | 33 Arroyo Drive, South San Francisco, California | 403151011 | April 23, 2025 4 rate of 150 mL/min. Purge volume was monitored either by counting the number of syringe pulls or by reading the volume purged on the electric pump. • Sample Collection: Subsequent to purging, the purge valve was closed and the sample canister valve opened to begin sample collection. The sampling was monitored by change in pressure. The sampling start time, initial sample canister vacuum, end time, and final vacuum were recorded on soil vapor sampling data sheets. Sample canister valves were closed when the remaining vacuum was approximately -5 in. Hg and prior to reaching 0 in. Hg, which would indicate that no vacuum remained in the canister. • Sample Handling: Upon collection, each sample was labeled with the sample identification, date and time of collection, and analytical method requested. This information was also recorded on a chain of custody supplied by the laboratory. Samples were delivered to a state-certified analytical laboratory the day after sample collection. • Sample Identification: Soil vapor probe samples were identified with letters SV (to denote soil vapor probe), and SSV (to denote sub-slab soil vapor probe) followed by a unique number for each probe. 3.2 Laboratory Analyses Soil vapor samples were submitted to McCampbell Analytical, Inc. (MAI), a California-certified analytical laboratory. The laboratory analytical report is presented in Appendix B. The soil vapor samples were analyzed for VOCs using United States Environmental Protection Agency (US EPA ) Method TO-15 and for fixed gas oxygen and tracer gas helium ASTM Method D 1946. 4 SOIL VAPOR SAMPLING RESULTS Soil vapor analytical results are presented in Tables 1 and 2. Soil vapor results were compared to RWQCB Residential and Commercial ESLs for Subslab/Soil Vapor, and gasoline constituent results were also compared to the SWRCB LTCP criteria. Current select soil vapor data exceeding ESLs are graphically shown on Figure 4. The laboratory analytical report is provided in Appendix B, and a discussion of the analytical results is presented below. 4.1 Volatile Organic Compounds During the November 20, 2024 soil vapor sampling event, twelve VOCs were detected above laboratory reporting limits (RLs). A detailed list of VOC detections is below: • Bromomethane, carbon disulfide, cyclohexane, dichlorodifluoromethane, ethylbenzene, styrene, toluene, TCE, 1,2,4-trimethylbenzene, and total xylenes were detected at concentrations below their respective residential ESLs, if established. • Benzene was detected at 7.8 µg/m3 in the SV-4 sample, which exceeds the 3.2 µg/m3 Residential ESL and is below the 14 µg/m3 Commercial ESL. The detection is also below SWRCB LTCP criteria for residential or commercial use with no bioattenuation zone. Benzene was not detected in any other soil vapor samples collected in November 2024. 128 Ninyo & Moore | 33 Arroyo Drive, South San Francisco, California | 403151011 | April 23, 2025 5 • PCE was detected at 7.7, 89, 190 and 5.1 µg/m3 in SV-1, SSV-2, SSV-3 and SV-4, respectively. The concentrations detected in SSV-2 and SSV-3 exceed both the Residential ESL of 15 µg/m3 and the Commercial ESL of 67 µg/m3. 4.2 Leak Detection Agent No helium was detected at or above the laboratory report limit in any soil vapor samples collected this event. All soil vapor analytical results are considered valid. 4.3 Fixed Gases Oxygen as a fixed gas was reported at 35% for all soil vapor samples collected this event. These concentrations exceed atmospheric oxygen levels and are considered anomalous. 5 CONCLUSIONS Ninyo & Moore conducted additional soil vapor sampling on November 20, 2024 to evaluate potential contamination to shallow soil vapor and soil vapor concentration seasonal variability at the Site. Based on the results of the November 2024 soil vapor sampling, Ninyo & Moore presents the following conclusions: • Benzene was detected in only one sample (soil vapor well SV-4), at a concentration that exceeded the Residential ESL, but is below the Commercial ESL. Current concentrations are consistent with concentrations detected in April 2024. As noted in the Phase II ESA, the benzene exceedances may be related to a petroleum fuel release from the former UST located on the south side of the Site. Therefore, the benzene concentrations were also compared to the SWRCB LTCP. The detections are below the residential LTCP criteria. Based on these comparisons to the LTCP criteria, the benzene concentrations detected in Site soil vapor are unlikely to present a significant vapor intrusion risk to the current or future Site building occupants. • PCE concentrations exceeded both the Residential and Commercial ESLs in SSV-2 and SSV-3, and have increased compared to concentrations from April 2024. Concentrations in SSV-2 appear to be fluctuating, and concentrations from SSV-3, are increasing. The source of the PCE concentrations is likely the adjacent My Cleaners, which is an open case listed on the SWRCB GeoTracker database (Case No. 559210). • As noted above, the fixed gas oxygen concentrations are anomalous. It is possible that remedial activities at the adjacent My Cleaners site may be affecting sub-slab and soil vapor conditions. 129 Ninyo & Moore | 33 Arroyo Drive, South San Francisco, California | 403151011 | April 23, 2025 6 6 RECOMMENDATIONS Ninyo & Moore recommends submitting this data to the San Mateo County Groundwater Protection Program (GPP) to assist in their evaluation of the adjacent My Cleaners open case under their oversight, especially as that site is undergoing remediation. If the City decides to redevelop the Site, we recommend meeting with the GPP to discuss the redevelopment plans and environmental data to develop a strategy to complete the redevelopment while protecting human health and the environment. Ninyo & Moore also recommends conducting additional soil vapor monitoring in April or May 2025 to continue to monitor VOC and oxygen concentrations; in particular at SSV-2 and SSV-3 to further assess PCE trends. 7 LIMITATIONS The environmental services described in this report have been conducted in general accordance with current regulatory guidelines and the standard-of-care exercised by environmental consultants performing similar work in the project area. No warranty, expressed or implied, is made regarding the professional opinions presented in this report. Variations in Site conditions may exist and conditions not observed or described in this report may be encountered during subsequent activities. Please also note that this study did not include an evaluation of geotechnical conditions or potential geologic hazards. Ninyo & Moore’s opinions and recommendations regarding environmental conditions, as presented in this report, are based on limited subsurface assessment and chemical analysis. Further assessment of potential adverse environmental impacts from past on-Site and/or nearby use of hazardous materials may be accomplished by a more comprehensive assessment. The samples collected and used for testing, and the observations made, are believed to be representative of the area(s) evaluated; however, conditions can vary significantly between sampling locations. Variations in soil and/or groundwater conditions will exist beyond the points explored in this evaluation. The environmental interpretations and opinions contained in this report are based on the results of laboratory tests and analyses intended to detect the presence and concentration of specific chemical or physical constituents in samples collected from the Site. The testing and analyses have been conducted by an independent laboratory that is certified by the State of California to conduct such tests. Ninyo & Moore has no involvement in, or control over, such testing and analysis. Ninyo & Moore, therefore, disclaims responsibility for any inaccuracy in such laboratory results. 130 Ninyo & Moore | 33 Arroyo Drive, South San Francisco, California | 403151011 | April 23, 2025 7 Our conclusions, recommendations, and opinions are based on an analysis of the observed Site conditions. It should be understood that the conditions of a Site could change with time as a result of natural processes or the activities of man at the Site or nearby Sites. In addition, changes to the applicable laws, regulations, codes, and standards of practice may occur due to government action or the broadening of knowledge. The findings of this report may, therefore, be invalidated over time, in part or in whole, by changes over which Ninyo & Moore has no control. This document is intended to be used only in its entirety. No portion of the document, by itself, is designed to completely represent any aspect of the project described herein. Ninyo & Moore should be contacted if the reader requires any additional information, or has questions regarding content, interpretations presented, or completeness of this document. This report is intended exclusively for use by the client. Any use or reuse of the findings, conclusions, and/or recommendations of this report by parties other than the client is undertaken at said parties’ sole risk. 131 Ninyo & Moore | 33 Arroyo Drive, South San Francisco, California | 403151011 | April 23, 2025 8 8 REFERENCES Cal EPA / RWQCB / DTSC, 2015. Advisory, Active Soil Gas Investigations; California Environmental Protection Agency / Regional Water Quality Control Board/ California Department of Toxic Substance Control; dated July. California State Water Resources Control Board (SWRCB), 2012. Low-Threat Underground Storage Tank Case Closure Policy. Effective August 17, 2012. Ninyo & Moore, 2018. Phase II Environmental Site Assessment and Geophysical Survey Report, 1 Chestnut Avenue, 1010 El Camino Real, 33 Arroyo Drive and 81 Arroyo Drive Properties, South San Francisco, California. Dated January 15. Ninyo & Moore, 2021. Phase I Environmental Site Assessment, Municipal Services Building, South San Francisco, California. Dated April 20. Ninyo & Moore, 2022. Phase II Environmental Site Assessment, 33 Arroyo Drive, South San Francisco, California. Dated November 19. San Francisco Bay Area Regional Water Quality Control Board (RWQCB), 2019. Environmental Screening Levels, San Francisco Bay Regional Water Quality Control Board. Dated February. 132 Ninyo & Moore | 33 Arroyo Drive, South San Francisco, California | 403151011 | April 23, 2025 TABLES 133 Table 1 – Soil Vapor Analytical Results - VOCs Depth (feet bgs)AcetoneAcrylonitrileBenzeneBromomethane2-Butanone(MEK)Carbon DisulfideChloroformChloromethaneCyclohexane1,1-Dichloroethenecis-1,2-Dichloroethenetrans-1,2-DichloroetheneDichlorodifluoromethaneEthanolEthylbenzene4-EthyltolueneHeptaneHexaneMethylene Chloride4-Methyl-2-pentanone(MIBK)StyreneTetrachloroethene (PCE)TolueneTrichloroethene (TCE)1,2,4-Trimethylbenzene1,3,5-TrimethylbenzeneVinyl ChlorideXylenes, TotalOthers VOCsSV-1 3/21/2022 5.0 ND<60 ND<1.1 4.3 6.8 ND<15 6.4 3.4 3.1 ND<18 ND<2.0 ND<2.0 ND<2.0 ND<2.5 ND<95 19 4.2 ND<21 ND<18 ND<8.8 2.8 ND<2.2 5.4 44 ND<2.8 17 8.3 ND<0.26 74 ND SV-1 7/19/2022 5.0 ND<60 ND<1.1 ND<1.6 60 ND<15 ND<1.6 ND<2.5 7.5 ND<18 ND<2.0 ND<2.0 ND<2.0 ND<2.5 ND<95 ND<2.2 ND<2.5 ND<21 ND<18 ND<8.8 ND<2.1 ND<2.2 7.4 B ND<1.9 ND<2.8 ND<2.5 ND<2.5 ND<0.26 ND<2.2 ND SV-1 5/17/2023 5.0 ND<60 ND<1.1 ND<1.6 120 ND<15 ND<1.6 ND<2.5 ND<1.0 ND<18 ND<2.0 ND<2.0 ND<2.0 ND<2.5 ND<95 ND<2.2 ND<2.5 ND<21 ND<18 ND<8.8 ND<2.1 ND<2.2 ND<3.5 ND<1.9 ND<2.8 ND<2.5 ND<2.5 ND<0.26 ND<2.2 ND SV-1 9/29/2023 5.0 ND<60 ND<1.1 ND<1.6 33 ND<15 ND<1.6 ND<2.5 1.7 ND<18 ND<2.0 ND<2.0 ND<2.0 ND<2.5 ND<95 ND<2.2 ND<2.5 ND<21 ND<18 ND<8.8 ND<2.1 ND<2.2 6.5 ND<1.9 ND<2.8 ND<2.5 ND<2.5 ND<0.26 ND<2.2 ND SV-1 4/3/2024 5.0 ND<61 ND<1.1 ND<1.6 11 ND<15 ND<1.6 ND<2.5 ND<1.0 ND<18 ND<2.0 ND<2.0 ND<2.0 ND<2.5 ND<96 ND<2.2 ND<2.5 ND<21 ND<18 ND<8.9 ND<2.1 ND<2.2 4.9 ND<1.9 ND<2.8 ND<2.5 ND<2.5 ND<0.26 ND<2.2 ND SV-1 11/20/2024 5.0 ND<60 ND<1.1 ND<1.6 2.7 ND<15 ND<1.6 ND<2.5 ND<1.0 ND<18 ND<2.0 ND<2.0 ND<2.0 ND<2.5 ND<95 ND<2.2 ND<2.5 ND<21 ND<18 ND<8.8 ND<2.1 ND<2.2 7.7 ND<1.9 ND<2.8 ND<2.5 ND<2.5 ND<0.26 <4.4 ND SV-2 3/21/2022 5.0 130 ND<1.1 25 ND<1.9 35 12 ND<2.5 ND<1.0 28 6.7 510 140 ND<2.5 ND<95 16 6.1 27 28 ND<8.8 8.7 ND<2.2 ND<3.5 35 17 22 9.8 74 70 ND SV-2 7/19/2022 5.0 Not sampled due to high back pressure during purging ND SV-2 5/17/2023 5.0 Not sampled due to high back pressure during purging ND SSV-2 9/29/2023 sub-slab ND<60 ND<1.1 ND<1.6 ND<1.9 ND<15 ND<1.6 ND<2.5 ND<1.0 ND<18 ND<2.0 ND<2.0 ND<2.0 ND<2.5 180 ND<2.2 ND<2.5 ND<21 ND<18 ND<8.8 ND<2.1 ND<2.2 72 10 12 ND<2.5 ND<2.5 ND<0.26 7 ND SSV-2 4/3/2024 sub-slab ND<61 ND<1.1 ND<1.6 ND<1.9 ND<15 ND<1.6 ND<2.6 ND<1.0 ND<18 ND<2.0 ND<2.0 ND<2.0 ND<2.6 160 ND<2.2 ND<2.6 ND<21 ND<18 15 ND<2.1 ND<2.2 7.9 ND<1.9 ND<2.9 ND<2.6 ND<2.6 ND<0.27 ND<2.2 ND SSV-2 11/20/2024 sub-slab ND<60 ND<1.1 ND<1.6 ND<1.9 ND<15 ND<1.6 ND<2.5 ND<1.0 ND<18 ND<2.0 ND<2.0 ND<2.0 2.5 ND<95 ND<2.2 ND<2.5 ND<21 ND<18 ND<8.8 ND<2.1 2.4 89 ND<1.9 13 ND<2.5 ND<2.5 ND<0.26 7.3 ND SV-3 3/21/2022 5.0 Not sampled due to high back pressure during purging ND SV-3 7/19/2022 5.0 Not sampled due to high back pressure during purging ND SV-3 5/17/2023 5.0 Not sampled due to high back pressure during purging ND SSV-3 9/29/2023 sub-slab ND<60 ND<1.1 ND<1.6 ND<1.9 ND<15 ND<1.6 ND<2.5 ND<1.0 ND<18 ND<2.0 ND<2.0 ND<2.0 ND<2.5 ND<95 ND<2.2 ND<2.5 ND<21 ND<18 ND<8.8 ND<2.1 ND<2.2 34 3.7 6.7 ND<2.5 ND<2.5 ND<0.26 ND<2.2 ND SSV-3 4/3/2024 sub-slab ND<62 ND<1.1 ND<1.7 ND<2.0 ND<16 ND<1.7 ND<2.6 ND<1.0 ND<19 ND<2.1 2.4 ND<2.1 ND<2.6 150 ND<2.3 ND<2.6 ND<22 ND<19 ND<9.1 ND<2.2 ND<2.3 48 ND<2.0 9.2 ND<2.6 ND<2.6 ND<0.27 ND<2.3 ND SSV-3 11/20/2024 sub-slab ND<61 ND<1.1 ND<1.6 ND<1.9 ND<15 ND<1.6 ND<2.5 ND<1.0 ND<18 ND<2.0 ND<2.0 ND<2.0 2.6 ND<96 ND<2.2 ND<2.5 ND<21 ND<18 ND<8.9 ND<2.1 ND<2.2 190 ND<1.9 13 ND<2.5 ND<2.5 ND<0.26 ND<4.5 ND SV-4 3/21/2022 5.0 77 6.8 15 2.3 16 18 ND<2.5 ND<1.0 ND<18 ND<2.0 ND<2.0 ND<2.0 ND<2.5 ND<95 19 5 66 41 ND<8.8 ND<2.1 ND<2.2 ND<3.5 46 ND<2.8 16 8.2 ND<0.26 70 ND SV-4 7/19/2022 5.0 ND<60 ND<1.1 11 ND<1.9 ND<15 3.5 ND<2.5 ND<1.0 66 ND<2.0 ND<2.0 ND<2.0 ND<2.5 ND<96 13 ND<2.5 ND<21 29 ND<8.9 ND<2.1 ND<2.2 7.7 B 25 ND<2.8 14 7.9 ND<0.26 55 ND SV-4 5/17/2023 5.0 ND<60 ND<1.1 7.7 86 ND<15 ND<1.6 ND<2.5 ND<1.0 ND<18 ND<2.0 ND<2.0 ND<2.0 ND<2.5 ND<95 7.2 ND<2.5 ND<21 ND<18 ND<8.8 ND<2.1 ND<2.2 ND<3.5 5.5 ND<2.8 5.4 ND<2.5 ND<0.26 23 ND SV-4 9/29/2023 5.0 ND<60 ND<1.1 11 17 ND<15 ND<1.6 ND<2.5 ND<1.0 ND<18 ND<2.0 ND<2.0 ND<2.0 ND<2.5 ND<95 12 2.9 ND<21 ND<18 ND<8.8 ND<2.1 ND<2.2 ND<3.5 7.7 ND<2.8 10 ND<2.5 ND<0.26 44 ND SV-4 4/3/2024 5.0 ND<61 ND<1.1 9.3 25 ND<15 ND<1.6 ND<2.5 ND<1.0 ND<18 ND<2.0 ND<2.0 ND<2.0 ND<2.5 ND<97 6 ND<2.5 ND<21 ND<18 ND<8.9 ND<2.1 ND<2.2 ND<3.6 3.4 ND<2.8 8.4 ND<2.5 ND<0.26 24 ND SV-4 11/20/2024 5.0 ND<60 ND<1.1 7.8 4.0 ND<15 1.8 ND<2.5 ND<1.0 46 ND<2.0 ND<2.0 ND<2.0 ND<2.5 ND<95 5.6 ND<2.5 ND<21 ND<18 ND<8.8 ND<2.1 ND<2.2 5.1 3.1 ND<2.8 11 ND<2.5 ND<0.26 23 ND Screening Criteria 1,100,000 NE 3.2 170 170,000 NE 4.1 3,100 NE 2,400 280 2,800 NE NE 37 NE NE NE 34 100,000 31,000 15 10,000 16 NE NE 0.32 3,500 Various 4,500,000 NE 14 730 730,000 NE 18 13,000 NE 10,000 1,200 12,000 NE NE 160 NE NE NE 410 440,000 130,000 67 44,000 100 NE NE 5.2 15,000 Various NE NE 85/280 NE NE NE NE NE NE NE NE NE NE NE 1,100/3,600 NE NE NE NE NE NE NE NE NE NE NE NE NE NE Notes: VOCs - volatile organic compous analyzed using United States Environmental Protection Agency Method TO-15 ID - identification bgs - below ground surface µg/m3 - micrograms per cubic meter ND<X - not detected at or above the laboratory reporting limit X B - analyte detected in the associated Method Blank at a concentration greater than 1/10 the reported sample result --- not analyzed ESL - San Francisco Bay Regional Water Control Board (RWQCB) environmental screening level LTCP - State Water Resources Control Board (SWRCB) Low-Threat Underground Storage Tank Case Closure Policy NE - screening level not established 1 = RWQCB Subslab/Soil Gas ESL, Vapor Intrusion: Human Health Risk Levels (Table SG-1), Residential, Cancer risk /non-cancer hazard, 2019 (Rev.2). Most conservative value shown. 2 = RWQCB Subslab/Soil Gas ESL, Vapor Intrusion: Human Health Risk Levels (Table SG-1), Commercial, Cancer risk /non-cancer hazard, 2019 (Rev.2). Most conservative value shown. 3 = SWRCB LTCP, 2012. Petroleum Vapor Intrusion to Indoor Air, Scenario 4 with no bioattenuation zone, residential/commercial Results in Bold equal or exceed ESLs μg/m³ LTCP Residential/Commercial3 Sample Date Sample ID Residental ESL1 Commercial ESL2 Ninyo & Moore | 33 Arroyo Drive, South San Francisco, California | 403151011 | April 23, 2025 1 134 Table 2 – Soil Vapor Analytical Results - Fixed Gases SV-1 3/21/2022 5.0 ND<0.050 6.4 SV-1 7/19/2022 5.0 ND<0.050 5.0 SV-1 5/17/2023 5.0 ND<0.050 3.4 SV-1 9/29/2023 5.0 ND<0.050 6.6 SV-1 4/3/2024 5.0 ND<0.050 4.1 SV-1 11/20/2024 5.0 ND<0.050 35 SV-2 3/21/2022 5.0 ND<0.050 1.1 SV-2 7/19/2022 5.0 Not sampled due to high back pressure during purging SV-2 5/17/2023 5.0 Not sampled due to high back pressure during purging SSV-2 9/29/2023 sub-slab ND<0.050 19 SSV-2 4/3/2024 sub-slab 0.13 28 SSV-2 11/20/2024 sub-slab ND<0.050 35 SV-3 3/21/2022 5.0 Not sampled due to high back pressure during purging SV-3 7/19/2022 5.0 Not sampled due to high back pressure during purging SV-3 5/17/2023 5.0 Not sampled due to high back pressure during purging SSV-3 9/29/2023 sub-slab ND<0.050 0.58 SSV-3 4/3/2024 sub-slab ND<0.052 15 SSV-3 11/20/2024 sub-slab ND<0.051 35 SV-4 3/21/2022 5.0 ND<0.050 0.98 SV-4 7/19/2022 5.0 ND<0.050 0.77 SV-4 5/17/2023 5.0 ND<0.050 0.44 SV-4 9/29/2023 5.0 ND<0.050 19 SV-4 4/3/2024 5.0 ND<0.051 0.9 SV-4 11/20/2024 5.0 ND<0.050 35 Notes: Fixed gases analyzed using ASTM D 1946 ID - identification bgs - below grou surface % - percent ND<X - not detected at or above the laboratory reporting limit X Helium OxygenSample ID Sample Date Depth (feet bgs) % Ninyo & Moore | 33 Arroyo Drive, South San Francisco, California | 403151011 | April 23, 2025 1 135 Ninyo & Moore | 33 Arroyo Drive, South San Francisco, California | 403151011 | April 23, 2025 Appendix A Photographic Documentation FIGURES 136 SITE Geotechnical & Environmental Sciences Consultants SITE LOCATION 0 SCALE (FEET) 2,000 4,0000 N 403151011.dwg 01/15/2025 AEKFIGURE 1 NOTE: DIMENSIONS, DIRECTIONS, AND LOCATIONS ARE APPROXIMATE I REFERENCE: USGS, 2018 SOIL VAPOR SAMPLING REPORT - FOURTH QUARTER 2024 33 ARROYO DRIVE SOUTH SAN FRANCISCO, CALIFORNIA 403151011 I 04/25 137 E L C A M I N O R E A L ARROYO DRCA M A R I T A S A V E A L T A L O M A D R 2,000-GALLON DIESEL AST & DISPENSER FORMER MY CLEANERS D E L P A S O D R SB/SV-1 SB/SV-2 SB/SV-3SB/SV-4 SSV-2 SSV-3 FORMER FIRING RANGE (LOWER LEVEL) Geotechnical & Environmental Sciences Consultants SITE PLAN 0 SCALE (FEET) 80 1600 N 403151011.dwg 01/15/2025 AEKFIGURE 2 LEGEND SITE BOUNDARY SOIL BORING AND SOIL VAPOR WELL SB/SV-1 SOIL BORING AND FORMER SOIL VAPOR WELL (DESTROYED SEPTEMBER 2023) SB/SV-2 SUB-SLAB SOIL VAPOR PINSSV-2 SOIL VAPOR SAMPLING REPORT - FOURTH QUARTER 2024 33 ARROYO DRIVE SOUTH SAN FRANCISCO, CALIFORNIA 403151011 I 04/25 NOTE: SOIL VAPOR PIN SSV-1 (REPLACEMENT FOR SV-1) NOT INSTALLED; NOT CURRENTLY NEEDED NOTE: DIMENSIONS, DIRECTIONS, AND LOCATIONS ARE APPROXIMATE REFERENCES: GOODWIN B. STEINBERG ASSOCIATES, 1979; GOOGLE EARTH, 2023 138 E L C A M I N O R E A L ARROYO DRCA M A R I T A S A V E A L T A L O M A D R 2,000-GALLON DIESEL AST & DISPENSER FORMER MY CLEANERS D E L P A S O D R SB/SV-1 SB/SV-2 SB/SV-3SB/SV-4 SSV-2 SSV-3 FORMER FIRING RANGE (LOWER LEVEL) Geotechnical & Environmental Sciences Consultants HISTORICAL SELECT SOIL VAPOR DATA 0 SCALE (FEET) 80 1600 N 403151011.dwg 01/15/2025 AEKFIGURE 3 LEGEND SITE BOUNDARY SOIL BORING AND SOIL VAPOR WELL SB/SV-1 SOIL BORING AND FORMER SOIL VAPOR WELL (DESTROYED SEPTEMBER 2023) SB/SV-2 SUB-SLAB SOIL VAPOR PINSSV-2 SOIL VAPOR SAMPLING REPORT - FOURTH QUARTER 2024 33 ARROYO DRIVE SOUTH SAN FRANCISCO, CALIFORNIA 403151011 I 04/25 NOTE: DIMENSIONS, DIRECTIONS, AND LOCATIONS ARE APPROXIMATE REFERENCES: GOODWIN B. STEINBERG ASSOCIATES, 1979; GOOGLE EARTH, 2023 NOTES: SS = SUB-SLAB BENZ = BENZENE CIS = cis-1,2-DICHLOROETHENE PCE = TETRACHLOROETHENE TCE = TRICHLOROETHENE VC = VINYL CHLORIDE NS = NOT SAMPLED; HIGH BACK PRESSURE DURING PURGING <X = NOT DETECTED AT OR ABOVE LABORATORY REPORTING LIMIT B = ANALYTE DETECTED IN METHOD BLANK R = RESIDENTIAL ESL C = COMMERCIAL ESL RESULTS IN BOLD EQUAL OR EXCEED ESL SAMPLE ID, DATE, DEPTH, AND RESULTS, IN MICROGRAMS PER CUBIC METER SV-1 DATE 03/21/22 07/19/22 05/17/23 09/29/23 04/03/24 11/20/24 FT 5.0 5.0 5.0 5.0 5.0 5.0 BENZ 4.3 <1.6 <1.6 <1.6 <1.6 <1.6 cis <2.0 <2.0 <2.0 <2.0 <2.0 <2.0 PCE 5.4 7.4 B <3.5 6.5 4.9 7.7 TCE <2.8 <2.8 <2.8 <2.8 <2.8 <2.8 VC <0.26 <0.26 <0.26 <0.26 <0.26 <0.26 SSV-3 DATE 09/29/23 04/03/24 11/20/24 FT SS SS SS BENZ <1.6 <1.7 <1.6 cis <2.0 2.4 <2.0 PCE 34 48 190 TCE 6.7 9.2 13 VC <0.26 <0.27 <0.26 SV-2 DATE 03/21/22 07/19/22 05/17/23 FT 5.0 5.0 5.0 BENZ 25 NS NS cis 510 PCE <3.5 TCE 17 VC 74 SV-4 DATE 03/21/22 07/19/22 05/17/23 09/29/23 04/03/24 11/20/24 FT 5.0 5.0 5.0 5.0 5.0 5.0 BENZ 15 11 7.7 11 9.3 9.3 cis <2.0 <2.0 <2.0 <2.0 <2.0 <2.0 PCE <3.5 7.7 B <3.5 <3.5 <3.6 <3.6 TCE <2.8 <2.8 <2.8 <2.8 <2.8 <2.8 VC <0.26 <0.26 <0.26 <0.26 <0.26 <0.26 SSV-2 DATE 09/29/23 04/03/24 11/20/24 FT SS SS SS BENZ <1.6 <1.6 <1.6 cis <2.0 <2.0 <2.0 PCE 72 7.9 89 TCE 12 <2.9 13 VC <0.26 <0.27 <0.26 SV-3 DATE 03/21/22 07/19/22 05/17/23 FT 5.0 5.0 5.0 BENZ NS NS NS cis PCE TCE VC SV-1 DATE 04/03/24 FT 5.0 R C BENZ <1.6 3.2 14 cis <2.0 280 1,200 PCE 4.9 15 67 TCE <2.8 16 100 VC <0.26 0.32 5.2 139 E L C A M I N O R E A L ARROYO DRCA M A R I T A S A V E A L T A L O M A D R 2,000-GALLON DIESEL AST & DISPENSER FORMER MY CLEANERS D E L P A S O D R SB/SV-1 SB/SV-2 SB/SV-3SB/SV-4 SSV-2 SSV-3 FORMER FIRING RANGE (LOWER LEVEL) Geotechnical & Environmental Sciences Consultants SELECT SOIL VAPOR DATA 0 SCALE (FEET) 80 1600 N 403151011.dwg 01/15/2025 AEKFIGURE 4 SOIL VAPOR SAMPLING REPORT - FOURTH QUARTER 2024 33 ARROYO DRIVE SOUTH SAN FRANCISCO, CALIFORNIA 403151011 I 04/25 NOTE: DIMENSIONS, DIRECTIONS, AND LOCATIONS ARE APPROXIMATE REFERENCES: GOODWIN B. STEINBERG ASSOCIATES, 1979; GOOGLE EARTH, 2023 SV-1 DATE 11/20/24 FT 5.0 BENZ <1.6 cis <2.0 PCE 7.7 TCE <2.8 VC <0.26 SSV-3 DATE 11/20/24 FT SS BENZ <1.6 cis <2.0 PCE 190 TCE 13 VC <0.26 SSV-2 DATE 11/20/24 FT SS BENZ <1.6 cis <2.0 PCE 89 TCE 13 VC <0.26 SV-4 DATE 11/20/24 FT 5.0 BENZ 9.3 cis <2.0 PCE <3.6 TCE <2.8 VC <0.26 LEGEND SITE BOUNDARY SOIL BORING AND SOIL VAPOR WELL SB/SV-1 SOIL BORING AND FORMER SOIL VAPOR WELL (DESTROYED SEPTEMBER 2023) SB/SV-2 SUB-SLAB SOIL VAPOR PINSSV-2 NOTES: SS = SUB-SLAB BENZ = BENZENE CIS = cis-1,2-DICHLOROETHENE PCE = TETRACHLOROETHENE TCE = TRICHLOROETHENE VC = VINYL CHLORIDE <X = NOT DETECTED AT OR ABOVE LABORATORY REPORTING LIMIT R = RESIDENTIAL ESL C = COMMERCIAL ESL RESULTS IN BOLD EQUAL OR EXCEED ESL SV-1 DATE 04/03/24 FT 5.0 R C BENZ <1.6 3.2 14 cis <2.0 280 1,200 PCE 4.9 15 67 TCE <2.8 16 100 VC <0.26 0.32 5.2 SAMPLE ID, DATE, DEPTH, AND RESULTS, IN MICROGRAMS PER CUBIC METER 140 Ninyo & Moore | 33 Arroyo Drive, South San Francisco, California | 403151011 | April 23, 2025 APPENDIX A Soil Vapor Sampling Sheets 141 142 143 144 145 Ninyo & Moore | 33 Arroyo Drive, South San Francisco, California | 403151011 | April 23, 2025 APPENDIX B Laboratory Analytical Report 146 WorkOrder: Report Created for:Ninyo & Moore 1301 Marina Village Parkway, Suite 110 Alameda, CA 94501 Project Contact:Gregory Roberts Project:403151011; City of SSF-MSB Project P.O.: Project Received:11/22/2024 Analytical Report reviewed & approved for release on 12/06/2024 by: Jennifer Lagerbom 2411F09 McCampbell Analytical Inc. is not accredited for all the testing in this report. The report shall not be reproduced except in full, without the written approval of the laboratory. The analytical results relate only to the items tested. Analytical Report 1534 Willow Pass Rd. Pittsburg, CA 94565 ♦ TEL: (877) 252-9262 ♦ FAX: (925) 252-9269 ♦ www.mccampbell.com Project Manager Project Location:33 Arroyo Drive South SF McCampbell Analytical, Inc. "When Quality Counts" Page 1 of 33 147 Glossary of Terms & Qualifier Definitions Client:Ninyo & Moore Project:403151011; City of SSF-MSB WorkOrder:2411F09 McCampbell Analytical, Inc.1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: main@mccampbell.com"When Quality Counts" Glossary Abbreviation %D Serial Dilution Percent Difference 95% Interval 95% Confident Interval CCV Continuing Calibration Verification. CCV REC (%)% recovery of Continuing Calibration Verification. CPT Consumer Product Testing not NELAP Accredited DF Dilution Factor DI WET (DISTLC) Waste Extraction Test using DI water DISS Dissolved (direct analysis of 0.45 µm filtered and acidified water sample) DLT Dilution Test (Serial Dilution) DUP Duplicate EDL Estimated Detection Limit ERS External reference sample. Second source calibration verification. ITEF International Toxicity Equivalence Factor LCS Laboratory Control Sample LCS2 Second LCS for the batch. Spike level is lower than that for the first LCS; applicable to method 1633. LQL Lowest Quantitation Level MB Method Blank MB IS/SS % Rec % Recovery of Internal Standard or Surrogate in Method Blank, if applicable MB SS % Rec % Recovery of Surrogate in Method Blank, if applicable MDL Method Detection Limit ¹ ML Minimum Level of Quantitation MS Matrix Spike MSD Matrix Spike Duplicate NA Not Applicable ND Not detected at or above the indicated MDL or RL NR Data Not Reported due to matrix interference or insufficient sample amount. PDS Post Digestion Spike PF Prep Factor RD Relative Difference RL Reporting Limit ² RPD Relative Percent Difference RRT Relative Retention Time RSD Relative Standard Deviation SNR Surrogate is diluted out of the calibration range ¹ MDL is the minimum measured concentration of a substance that can be reported with 99% confidence that the measured concentration is distinguishable from method blank results. Definition and Procedure for the Determination of the Method Detection Limit, Revision 2, 40CFR, Part 136, Appendix B, EPA 821-R-16-006, December 2016. Values are based upon our default extraction volume/amount and are subject to change. ² RL is the lowest level that can be reliably determined within specified limits of precision and accuracy during routine laboratory operating conditions. (The RL cannot be lower than the lowest calibration standard used in the initial calibration of the instrument and must be greater than the MDL.) Values are based upon our default extraction volume/amount and are subject to change. Page 2 of 33 148 Glossary of Terms & Qualifier Definitions Client:Ninyo & Moore Project:403151011; City of SSF-MSB WorkOrder:2411F09 McCampbell Analytical, Inc.1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: main@mccampbell.com"When Quality Counts" SPK Val Spike Value SPKRef Val Spike Reference Value SPLP Synthetic Precipitation Leachate Procedure ST Sorbent Tube TCLP Toxicity Characteristic Leachate Procedure TEQ Toxicity Equivalents TNTC “Too Numerous to Count;” greater than 250 colonies observed on the plate. TZA TimeZone Net Adjustment for sample collected outside of MAI's Coordinated Universal Time (UTC). (Adjustment for Daylight Saving is not accounted.) WET (STLC)Waste Extraction Test (Soluble Threshold Limit Concentration) Quality Control Qualifiers F2 LCS/LCSD recovery and/or RPD/RSD is out of acceptance criteria. F7 The LCS/LCSD recovery is above the upper control limit. The target analyte(s) were Not Detected (ND); therefore, the data is reportable. Page 3 of 33 149 Client:Ninyo & Moore Project:403151011; City of SSF-MSB Case Narrative December 06, 2024 Work Order:2411F09 McCampbell Analytical, Inc.1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: main@mccampbell.com"When Quality Counts" TO-15 ANALYSIS McCampbell Analytical Inc. is currently not accredited for TO15 and ASTM D 1946m. All summa canisters are EVACUATED 5 days after the reporting of the results. Please call or email if a longer retention time is required. Page 4 of 33 150 Summary of Sample Pressure Report Lab ID Lab Prep Vacuum (psia) Field Initial Vacuum (inHg) Field Final Vacuum (inHg) Lab Received Vacuum (psia) Lab Received Vacuum (inHg) Lab Final Vacuum / Pressure (psia) Canister ID McCampbell Analytical, Inc.1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: main@mccampbell.com"When Quality Counts" 2411F09-001A 1975-2602 0.22 -29 -5 13.01 -3.44 26.11 2411F09-002A 1992-2619 0.25 -29 -5 12.61 -4.26 25.3 2411F09-003A 2036-2660 0.24 -28 -5 12.16 -5.17 24.63 2411F09-004A 2011-2638 0.25 -30 -5 12.04 -5.42 24.14 Page 5 of 33 151 Analytical Report McCampbell Analytical, Inc.1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: main@mccampbell.com"When Quality Counts" Client:Ninyo & Moore Project:403151011; City of SSF-MSB Date Received:11/22/2024 14:16 Date Prepared:11/26/2024 WorkOrder:2411F09 Extraction Method:ASTM D 1946-90 Analytical Method:ASTM D 1946-90 Unit:% Atmospheric Gases Client ID Lab ID Matrix Date Collected Instrument Batch ID SV-1 2411F09-001A SoilGas 11/20/2024 07:53 GC51 2024-11-26 14-5 306790 Analytes Result RL DF Date Analyzed NA NA Initial Pressure (psia)Final Pressure (psia)Analyst(s) PRE Oxygen 35 0.40 1 11/26/2024 14:59 SSV-2 2411F09-002A SoilGas 11/20/2024 08:32 GC51 2024-11-26 15-4 306790 Analytes Result RL DF Date Analyzed NA NA Initial Pressure (psia)Final Pressure (psia)Analyst(s) PRE Oxygen 35 0.40 1 11/26/2024 15:43 SSV-3 2411F09-003A SoilGas 11/20/2024 09:26 GC51 2024-11-26 16-2 306790 Analytes Result RL DF Date Analyzed NA NA Initial Pressure (psia)Final Pressure (psia)Analyst(s) PRE Oxygen 35 0.40 1 11/26/2024 16:27 (Cont.) Page 6 of 33 152 Analytical Report McCampbell Analytical, Inc.1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: main@mccampbell.com"When Quality Counts" Client:Ninyo & Moore Project:403151011; City of SSF-MSB Date Received:11/22/2024 14:16 Date Prepared:11/26/2024 WorkOrder:2411F09 Extraction Method:ASTM D 1946-90 Analytical Method:ASTM D 1946-90 Unit:% Atmospheric Gases Client ID Lab ID Matrix Date Collected Instrument Batch ID SV-4 2411F09-004A SoilGas 11/20/2024 10:22 GC51 2024-11-26 17-1 306790 Analytes Result RL DF Date Analyzed NA NA Initial Pressure (psia)Final Pressure (psia)Analyst(s) PRE Oxygen 35 0.40 1 11/26/2024 17:12 Page 7 of 33 153 Analytical Report McCampbell Analytical, Inc.1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: main@mccampbell.com"When Quality Counts" Client:Ninyo & Moore Project:403151011; City of SSF-MSB Date Received:11/22/2024 14:16 Date Prepared:12/02/2024 WorkOrder:2411F09 Extraction Method:ASTM D 1946-90 Analytical Method:ASTM D 1946-90 Unit:% Helium Client ID Lab ID Matrix Date Collected Instrument Batch ID SV-1 2411F09-001A SoilGas 11/20/2024 07:53 GC26 1202240310.D 306976 Analytes Result RL DF Date Analyzed 13.01 26.11 Initial Pressure (psia)Final Pressure (psia)Analyst(s) PRE Helium ND 0.050 1 12/02/2024 17:58 SSV-2 2411F09-002A SoilGas 11/20/2024 08:32 GC26 1202240311.D 306976 Analytes Result RL DF Date Analyzed 12.61 25.30 Initial Pressure (psia)Final Pressure (psia)Analyst(s) PRE Helium ND 0.050 1 12/02/2024 18:11 SSV-3 2411F09-003A SoilGas 11/20/2024 09:26 GC26 1202240312.D 306976 Analytes Result RL DF Date Analyzed 12.16 24.63 Initial Pressure (psia)Final Pressure (psia)Analyst(s) PRE Helium ND 0.051 1 12/02/2024 18:24 (Cont.) Page 8 of 33 154 Analytical Report McCampbell Analytical, Inc.1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: main@mccampbell.com"When Quality Counts" Client:Ninyo & Moore Project:403151011; City of SSF-MSB Date Received:11/22/2024 14:16 Date Prepared:12/02/2024 WorkOrder:2411F09 Extraction Method:ASTM D 1946-90 Analytical Method:ASTM D 1946-90 Unit:% Helium Client ID Lab ID Matrix Date Collected Instrument Batch ID SV-4 2411F09-004A SoilGas 11/20/2024 10:22 GC26 1202240313.D 306976 Analytes Result RL DF Date Analyzed 12.04 24.14 Initial Pressure (psia)Final Pressure (psia)Analyst(s) PRE Helium ND 0.050 1 12/02/2024 18:36 Page 9 of 33 155 Analytical Report McCampbell Analytical, Inc.1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: main@mccampbell.com"When Quality Counts" Client:Ninyo & Moore Project:403151011; City of SSF-MSB Date Received:11/22/2024 14:16 Date Prepared:12/03/2024 WorkOrder:2411F09 Extraction Method:TO15 Analytical Method:TO15 Unit:µg/m³ Volatile Organic Compounds Client ID Lab ID Matrix Date Collected Instrument Batch ID SV-1 2411F09-001A SoilGas 11/20/2024 07:53 GC24 12022419.D 307071 Analytes Result RL DF Date Analyzed 13.01 26.11 Initial Pressure (psia)Final Pressure (psia)Analyst(s) PRE Acetone ND 60 1 12/03/2024 03:01 Acrolein ND 5.8 1 12/03/2024 03:01 Acrylonitrile ND 1.1 1 12/03/2024 03:01 tert-Amyl methyl ether (TAME)ND 2.1 1 12/03/2024 03:01 Benzene ND 1.6 1 12/03/2024 03:01 Benzyl chloride ND 2.7 1 12/03/2024 03:01 Bromodichloromethane ND 1.4 1 12/03/2024 03:01 Bromoform ND 5.3 1 12/03/2024 03:01 Bromomethane 2.7 1.9 1 12/03/2024 03:01 1,3-Butadiene ND 1.1 1 12/03/2024 03:01 2-Butanone (MEK)ND 15 1 12/03/2024 03:01 t-Butyl alcohol (TBA)ND 16 1 12/03/2024 03:01 Carbon Disulfide ND 1.6 1 12/03/2024 03:01 Carbon Tetrachloride ND 1.3 1 12/03/2024 03:01 Chlorobenzene ND 2.4 1 12/03/2024 03:01 Chloroethane ND 1.3 1 12/03/2024 03:01 Chloroform ND 2.5 1 12/03/2024 03:01 Chloromethane ND 1.0 1 12/03/2024 03:01 Cyclohexane ND 18 1 12/03/2024 03:01 Dibromochloromethane ND 4.4 1 12/03/2024 03:01 1,2-Dibromo-3-chloropropane ND 0.12 1 12/03/2024 03:01 1,2-Dibromoethane (EDB)ND 0.078 1 12/03/2024 03:01 1,2-Dichlorobenzene ND 3.0 1 12/03/2024 03:01 1,3-Dichlorobenzene ND 3.0 1 12/03/2024 03:01 1,4-Dichlorobenzene ND 3.0 1 12/03/2024 03:01 Dichlorodifluoromethane ND 2.5 1 12/03/2024 03:01 1,1-Dichloroethane ND 2.0 1 12/03/2024 03:01 1,2-Dichloroethane (1,2-DCA)ND 2.0 1 12/03/2024 03:01 1,1-Dichloroethene ND 2.0 1 12/03/2024 03:01 cis-1,2-Dichloroethene ND 2.0 1 12/03/2024 03:01 trans-1,2-Dichloroethene ND 2.0 1 12/03/2024 03:01 1,2-Dichloropropane ND 2.4 1 12/03/2024 03:01 cis-1,3-Dichloropropene ND 2.3 1 12/03/2024 03:01 trans-1,3-Dichloropropene ND 2.3 1 12/03/2024 03:01 (Cont.) Page 10 of 33 156 Analytical Report McCampbell Analytical, Inc.1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: main@mccampbell.com"When Quality Counts" Client:Ninyo & Moore Project:403151011; City of SSF-MSB Date Received:11/22/2024 14:16 Date Prepared:12/03/2024 WorkOrder:2411F09 Extraction Method:TO15 Analytical Method:TO15 Unit:µg/m³ Volatile Organic Compounds Client ID Lab ID Matrix Date Collected Instrument Batch ID SV-1 2411F09-001A SoilGas 11/20/2024 07:53 GC24 12022419.D 307071 Analytes Result RL DF Date Analyzed 13.01 26.11 Initial Pressure (psia)Final Pressure (psia)Analyst(s) PRE 1,2-Dichloro-1,1,2,2-tetrafluoroethane ND 3.6 1 12/03/2024 03:01 Diisopropyl ether (DIPE)ND 2.1 1 12/03/2024 03:01 1,4-Dioxane ND 1.9 1 12/03/2024 03:01 Ethanol ND 95 1 12/03/2024 03:01 Ethyl acetate ND 1.9 1 12/03/2024 03:01 Ethyl tert-butyl ether (ETBE)ND 2.1 1 12/03/2024 03:01 Ethylbenzene ND 2.2 1 12/03/2024 03:01 4-Ethyltoluene ND 2.5 1 12/03/2024 03:01 Freon 113 ND 3.9 1 12/03/2024 03:01 Heptane ND 21 1 12/03/2024 03:01 Hexachlorobutadiene ND 2.2 1 12/03/2024 03:01 Hexachloroethane ND 4.9 1 12/03/2024 03:01 Hexane ND 18 1 12/03/2024 03:01 2-Hexanone ND 2.1 1 12/03/2024 03:01 4-Methyl-2-pentanone (MIBK)ND 2.1 1 12/03/2024 03:01 Methyl-t-butyl ether (MTBE)ND 1.9 1 12/03/2024 03:01 Methylene chloride ND 8.8 1 12/03/2024 03:01 Methyl methacrylate ND 2.1 1 12/03/2024 03:01 Naphthalene ND 2.7 1 12/03/2024 03:01 Styrene ND 2.2 1 12/03/2024 03:01 1,1,1,2-Tetrachloroethane ND 3.5 1 12/03/2024 03:01 1,1,2,2-Tetrachloroethane ND 0.70 1 12/03/2024 03:01 Tetrachloroethene 7.7 3.5 1 12/03/2024 03:01 Tetrahydrofuran ND 3.0 1 12/03/2024 03:01 Toluene ND 1.9 1 12/03/2024 03:01 1,2,4-Trichlorobenzene ND 3.8 1 12/03/2024 03:01 1,1,1-Trichloroethane ND 2.8 1 12/03/2024 03:01 1,1,2-Trichloroethane ND 2.8 1 12/03/2024 03:01 Trichloroethene ND 2.8 1 12/03/2024 03:01 1,2,3-Trichloropropane ND 3.1 1 12/03/2024 03:01 Trichlorofluoromethane ND 2.9 1 12/03/2024 03:01 1,2,4-Trimethylbenzene ND 2.5 1 12/03/2024 03:01 1,3,5-Trimethylbenzene ND 2.5 1 12/03/2024 03:01 Vinyl Acetate ND 18 1 12/03/2024 03:01 (Cont.) Page 11 of 33 157 Analytical Report McCampbell Analytical, Inc.1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: main@mccampbell.com"When Quality Counts" Client:Ninyo & Moore Project:403151011; City of SSF-MSB Date Received:11/22/2024 14:16 Date Prepared:12/03/2024 WorkOrder:2411F09 Extraction Method:TO15 Analytical Method:TO15 Unit:µg/m³ Volatile Organic Compounds Client ID Lab ID Matrix Date Collected Instrument Batch ID SV-1 2411F09-001A SoilGas 11/20/2024 07:53 GC24 12022419.D 307071 Analytes Result RL DF Date Analyzed 13.01 26.11 Initial Pressure (psia)Final Pressure (psia)Analyst(s) PRE Vinyl Chloride ND 0.26 1 12/03/2024 03:01 m,p-Xylene ND 4.4 1 12/03/2024 03:01 o-Xylene ND 2.2 1 12/03/2024 03:01 Xylenes, Total ND 4.4 1 12/03/2024 03:01 Surrogates REC (%)Limits 1,2-DCA-d4 103 70-130 12/03/2024 03:01 Toluene-d8 96 70-130 12/03/2024 03:01 4-BFB 91 70-130 12/03/2024 03:01 (Cont.) Page 12 of 33 158 Analytical Report McCampbell Analytical, Inc.1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: main@mccampbell.com"When Quality Counts" Client:Ninyo & Moore Project:403151011; City of SSF-MSB Date Received:11/22/2024 14:16 Date Prepared:12/03/2024 WorkOrder:2411F09 Extraction Method:TO15 Analytical Method:TO15 Unit:µg/m³ Volatile Organic Compounds Client ID Lab ID Matrix Date Collected Instrument Batch ID SSV-2 2411F09-002A SoilGas 11/20/2024 08:32 GC24 12022420.D 307071 Analytes Result RL DF Date Analyzed 12.61 25.30 Initial Pressure (psia)Final Pressure (psia)Analyst(s) PRE Acetone ND 60 1 12/03/2024 03:40 Acrolein ND 5.8 1 12/03/2024 03:40 Acrylonitrile ND 1.1 1 12/03/2024 03:40 tert-Amyl methyl ether (TAME)ND 2.1 1 12/03/2024 03:40 Benzene ND 1.6 1 12/03/2024 03:40 Benzyl chloride ND 2.7 1 12/03/2024 03:40 Bromodichloromethane ND 1.4 1 12/03/2024 03:40 Bromoform ND 5.3 1 12/03/2024 03:40 Bromomethane ND 1.9 1 12/03/2024 03:40 1,3-Butadiene ND 1.1 1 12/03/2024 03:40 2-Butanone (MEK)ND 15 1 12/03/2024 03:40 t-Butyl alcohol (TBA)ND 16 1 12/03/2024 03:40 Carbon Disulfide ND 1.6 1 12/03/2024 03:40 Carbon Tetrachloride ND 1.3 1 12/03/2024 03:40 Chlorobenzene ND 2.4 1 12/03/2024 03:40 Chloroethane ND 1.3 1 12/03/2024 03:40 Chloroform ND 2.5 1 12/03/2024 03:40 Chloromethane ND 1.0 1 12/03/2024 03:40 Cyclohexane ND 18 1 12/03/2024 03:40 Dibromochloromethane ND 4.4 1 12/03/2024 03:40 1,2-Dibromo-3-chloropropane ND 0.12 1 12/03/2024 03:40 1,2-Dibromoethane (EDB)ND 0.078 1 12/03/2024 03:40 1,2-Dichlorobenzene ND 3.0 1 12/03/2024 03:40 1,3-Dichlorobenzene ND 3.0 1 12/03/2024 03:40 1,4-Dichlorobenzene ND 3.0 1 12/03/2024 03:40 Dichlorodifluoromethane 2.5 2.5 1 12/03/2024 03:40 1,1-Dichloroethane ND 2.0 1 12/03/2024 03:40 1,2-Dichloroethane (1,2-DCA)ND 2.0 1 12/03/2024 03:40 1,1-Dichloroethene ND 2.0 1 12/03/2024 03:40 cis-1,2-Dichloroethene ND 2.0 1 12/03/2024 03:40 trans-1,2-Dichloroethene ND 2.0 1 12/03/2024 03:40 1,2-Dichloropropane ND 2.4 1 12/03/2024 03:40 cis-1,3-Dichloropropene ND 2.3 1 12/03/2024 03:40 trans-1,3-Dichloropropene ND 2.3 1 12/03/2024 03:40 (Cont.) Page 13 of 33 159 Analytical Report McCampbell Analytical, Inc.1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: main@mccampbell.com"When Quality Counts" Client:Ninyo & Moore Project:403151011; City of SSF-MSB Date Received:11/22/2024 14:16 Date Prepared:12/03/2024 WorkOrder:2411F09 Extraction Method:TO15 Analytical Method:TO15 Unit:µg/m³ Volatile Organic Compounds Client ID Lab ID Matrix Date Collected Instrument Batch ID SSV-2 2411F09-002A SoilGas 11/20/2024 08:32 GC24 12022420.D 307071 Analytes Result RL DF Date Analyzed 12.61 25.30 Initial Pressure (psia)Final Pressure (psia)Analyst(s) PRE 1,2-Dichloro-1,1,2,2-tetrafluoroethane ND 3.6 1 12/03/2024 03:40 Diisopropyl ether (DIPE)ND 2.1 1 12/03/2024 03:40 1,4-Dioxane ND 1.9 1 12/03/2024 03:40 Ethanol ND 95 1 12/03/2024 03:40 Ethyl acetate ND 1.9 1 12/03/2024 03:40 Ethyl tert-butyl ether (ETBE)ND 2.1 1 12/03/2024 03:40 Ethylbenzene ND 2.2 1 12/03/2024 03:40 4-Ethyltoluene ND 2.5 1 12/03/2024 03:40 Freon 113 ND 3.9 1 12/03/2024 03:40 Heptane ND 21 1 12/03/2024 03:40 Hexachlorobutadiene ND 2.2 1 12/03/2024 03:40 Hexachloroethane ND 4.9 1 12/03/2024 03:40 Hexane ND 18 1 12/03/2024 03:40 2-Hexanone ND 2.1 1 12/03/2024 03:40 4-Methyl-2-pentanone (MIBK)ND 2.1 1 12/03/2024 03:40 Methyl-t-butyl ether (MTBE)ND 1.9 1 12/03/2024 03:40 Methylene chloride ND 8.8 1 12/03/2024 03:40 Methyl methacrylate ND 2.1 1 12/03/2024 03:40 Naphthalene ND 2.7 1 12/03/2024 03:40 Styrene 2.4 2.2 1 12/03/2024 03:40 1,1,1,2-Tetrachloroethane ND 3.5 1 12/03/2024 03:40 1,1,2,2-Tetrachloroethane ND 0.70 1 12/03/2024 03:40 Tetrachloroethene 89 3.5 1 12/03/2024 03:40 Tetrahydrofuran ND 3.0 1 12/03/2024 03:40 Toluene ND 1.9 1 12/03/2024 03:40 1,2,4-Trichlorobenzene ND 3.8 1 12/03/2024 03:40 1,1,1-Trichloroethane ND 2.8 1 12/03/2024 03:40 1,1,2-Trichloroethane ND 2.8 1 12/03/2024 03:40 Trichloroethene 13 2.8 1 12/03/2024 03:40 1,2,3-Trichloropropane ND 3.1 1 12/03/2024 03:40 Trichlorofluoromethane ND 2.9 1 12/03/2024 03:40 1,2,4-Trimethylbenzene ND 2.5 1 12/03/2024 03:40 1,3,5-Trimethylbenzene ND 2.5 1 12/03/2024 03:40 Vinyl Acetate ND 18 1 12/03/2024 03:40 (Cont.) Page 14 of 33 160 Analytical Report McCampbell Analytical, Inc.1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: main@mccampbell.com"When Quality Counts" Client:Ninyo & Moore Project:403151011; City of SSF-MSB Date Received:11/22/2024 14:16 Date Prepared:12/03/2024 WorkOrder:2411F09 Extraction Method:TO15 Analytical Method:TO15 Unit:µg/m³ Volatile Organic Compounds Client ID Lab ID Matrix Date Collected Instrument Batch ID SSV-2 2411F09-002A SoilGas 11/20/2024 08:32 GC24 12022420.D 307071 Analytes Result RL DF Date Analyzed 12.61 25.30 Initial Pressure (psia)Final Pressure (psia)Analyst(s) PRE Vinyl Chloride ND 0.26 1 12/03/2024 03:40 m,p-Xylene 4.4 4.4 1 12/03/2024 03:40 o-Xylene 2.9 2.2 1 12/03/2024 03:40 Xylenes, Total 7.3 2.2 1 12/03/2024 03:40 Surrogates REC (%)Limits 1,2-DCA-d4 104 70-130 12/03/2024 03:40 Toluene-d8 95 70-130 12/03/2024 03:40 4-BFB 101 70-130 12/03/2024 03:40 (Cont.) Page 15 of 33 161 Analytical Report McCampbell Analytical, Inc.1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: main@mccampbell.com"When Quality Counts" Client:Ninyo & Moore Project:403151011; City of SSF-MSB Date Received:11/22/2024 14:16 Date Prepared:12/03/2024 WorkOrder:2411F09 Extraction Method:TO15 Analytical Method:TO15 Unit:µg/m³ Volatile Organic Compounds Client ID Lab ID Matrix Date Collected Instrument Batch ID SSV-3 2411F09-003A SoilGas 11/20/2024 09:26 GC24 12022421.D 307071 Analytes Result RL DF Date Analyzed 12.16 24.63 Initial Pressure (psia)Final Pressure (psia)Analyst(s) PRE Acetone ND 61 1 12/03/2024 04:20 Acrolein ND 5.9 1 12/03/2024 04:20 Acrylonitrile ND 1.1 1 12/03/2024 04:20 tert-Amyl methyl ether (TAME)ND 2.1 1 12/03/2024 04:20 Benzene ND 1.6 1 12/03/2024 04:20 Benzyl chloride ND 2.7 1 12/03/2024 04:20 Bromodichloromethane ND 1.4 1 12/03/2024 04:20 Bromoform ND 5.4 1 12/03/2024 04:20 Bromomethane ND 1.9 1 12/03/2024 04:20 1,3-Butadiene ND 1.1 1 12/03/2024 04:20 2-Butanone (MEK)ND 15 1 12/03/2024 04:20 t-Butyl alcohol (TBA)ND 16 1 12/03/2024 04:20 Carbon Disulfide ND 1.6 1 12/03/2024 04:20 Carbon Tetrachloride ND 1.3 1 12/03/2024 04:20 Chlorobenzene ND 2.4 1 12/03/2024 04:20 Chloroethane ND 1.3 1 12/03/2024 04:20 Chloroform ND 2.5 1 12/03/2024 04:20 Chloromethane ND 1.0 1 12/03/2024 04:20 Cyclohexane ND 18 1 12/03/2024 04:20 Dibromochloromethane ND 4.5 1 12/03/2024 04:20 1,2-Dibromo-3-chloropropane ND 0.12 1 12/03/2024 04:20 1,2-Dibromoethane (EDB)ND 0.079 1 12/03/2024 04:20 1,2-Dichlorobenzene ND 3.0 1 12/03/2024 04:20 1,3-Dichlorobenzene ND 3.0 1 12/03/2024 04:20 1,4-Dichlorobenzene ND 3.0 1 12/03/2024 04:20 Dichlorodifluoromethane 2.6 2.5 1 12/03/2024 04:20 1,1-Dichloroethane ND 2.0 1 12/03/2024 04:20 1,2-Dichloroethane (1,2-DCA)ND 2.0 1 12/03/2024 04:20 1,1-Dichloroethene ND 2.0 1 12/03/2024 04:20 cis-1,2-Dichloroethene ND 2.0 1 12/03/2024 04:20 trans-1,2-Dichloroethene ND 2.0 1 12/03/2024 04:20 1,2-Dichloropropane ND 2.4 1 12/03/2024 04:20 cis-1,3-Dichloropropene ND 2.3 1 12/03/2024 04:20 trans-1,3-Dichloropropene ND 2.3 1 12/03/2024 04:20 (Cont.) Page 16 of 33 162 Analytical Report McCampbell Analytical, Inc.1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: main@mccampbell.com"When Quality Counts" Client:Ninyo & Moore Project:403151011; City of SSF-MSB Date Received:11/22/2024 14:16 Date Prepared:12/03/2024 WorkOrder:2411F09 Extraction Method:TO15 Analytical Method:TO15 Unit:µg/m³ Volatile Organic Compounds Client ID Lab ID Matrix Date Collected Instrument Batch ID SSV-3 2411F09-003A SoilGas 11/20/2024 09:26 GC24 12022421.D 307071 Analytes Result RL DF Date Analyzed 12.16 24.63 Initial Pressure (psia)Final Pressure (psia)Analyst(s) PRE 1,2-Dichloro-1,1,2,2-tetrafluoroethane ND 3.6 1 12/03/2024 04:20 Diisopropyl ether (DIPE)ND 2.1 1 12/03/2024 04:20 1,4-Dioxane ND 1.9 1 12/03/2024 04:20 Ethanol ND 96 1 12/03/2024 04:20 Ethyl acetate ND 1.9 1 12/03/2024 04:20 Ethyl tert-butyl ether (ETBE)ND 2.1 1 12/03/2024 04:20 Ethylbenzene ND 2.2 1 12/03/2024 04:20 4-Ethyltoluene ND 2.5 1 12/03/2024 04:20 Freon 113 ND 3.9 1 12/03/2024 04:20 Heptane ND 21 1 12/03/2024 04:20 Hexachlorobutadiene ND 2.2 1 12/03/2024 04:20 Hexachloroethane ND 5.0 1 12/03/2024 04:20 Hexane ND 18 1 12/03/2024 04:20 2-Hexanone ND 2.1 1 12/03/2024 04:20 4-Methyl-2-pentanone (MIBK)ND 2.1 1 12/03/2024 04:20 Methyl-t-butyl ether (MTBE)ND 1.9 1 12/03/2024 04:20 Methylene chloride ND 8.9 1 12/03/2024 04:20 Methyl methacrylate ND 2.1 1 12/03/2024 04:20 Naphthalene ND 2.7 1 12/03/2024 04:20 Styrene ND 2.2 1 12/03/2024 04:20 1,1,1,2-Tetrachloroethane ND 3.5 1 12/03/2024 04:20 1,1,2,2-Tetrachloroethane ND 0.71 1 12/03/2024 04:20 Tetrachloroethene 190 3.5 1 12/03/2024 04:20 Tetrahydrofuran ND 3.0 1 12/03/2024 04:20 Toluene ND 1.9 1 12/03/2024 04:20 1,2,4-Trichlorobenzene ND 3.8 1 12/03/2024 04:20 1,1,1-Trichloroethane ND 2.8 1 12/03/2024 04:20 1,1,2-Trichloroethane ND 2.8 1 12/03/2024 04:20 Trichloroethene 13 2.8 1 12/03/2024 04:20 1,2,3-Trichloropropane ND 3.1 1 12/03/2024 04:20 Trichlorofluoromethane ND 2.9 1 12/03/2024 04:20 1,2,4-Trimethylbenzene ND 2.5 1 12/03/2024 04:20 1,3,5-Trimethylbenzene ND 2.5 1 12/03/2024 04:20 Vinyl Acetate ND 18 1 12/03/2024 04:20 (Cont.) Page 17 of 33 163 Analytical Report McCampbell Analytical, Inc.1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: main@mccampbell.com"When Quality Counts" Client:Ninyo & Moore Project:403151011; City of SSF-MSB Date Received:11/22/2024 14:16 Date Prepared:12/03/2024 WorkOrder:2411F09 Extraction Method:TO15 Analytical Method:TO15 Unit:µg/m³ Volatile Organic Compounds Client ID Lab ID Matrix Date Collected Instrument Batch ID SSV-3 2411F09-003A SoilGas 11/20/2024 09:26 GC24 12022421.D 307071 Analytes Result RL DF Date Analyzed 12.16 24.63 Initial Pressure (psia)Final Pressure (psia)Analyst(s) PRE Vinyl Chloride ND 0.26 1 12/03/2024 04:20 m,p-Xylene ND 4.5 1 12/03/2024 04:20 o-Xylene ND 2.2 1 12/03/2024 04:20 Xylenes, Total ND 4.5 1 12/03/2024 04:20 Surrogates REC (%)Limits 1,2-DCA-d4 104 70-130 12/03/2024 04:20 Toluene-d8 95 70-130 12/03/2024 04:20 4-BFB 94 70-130 12/03/2024 04:20 (Cont.) Page 18 of 33 164 Analytical Report McCampbell Analytical, Inc.1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: main@mccampbell.com"When Quality Counts" Client:Ninyo & Moore Project:403151011; City of SSF-MSB Date Received:11/22/2024 14:16 Date Prepared:12/03/2024 WorkOrder:2411F09 Extraction Method:TO15 Analytical Method:TO15 Unit:µg/m³ Volatile Organic Compounds Client ID Lab ID Matrix Date Collected Instrument Batch ID SV-4 2411F09-004A SoilGas 11/20/2024 10:22 GC24 12022422.D 307071 Analytes Result RL DF Date Analyzed 12.04 24.14 Initial Pressure (psia)Final Pressure (psia)Analyst(s) PRE Acetone ND 60 1 12/03/2024 05:00 Acrolein ND 5.8 1 12/03/2024 05:00 Acrylonitrile ND 1.1 1 12/03/2024 05:00 tert-Amyl methyl ether (TAME)ND 2.1 1 12/03/2024 05:00 Benzene 7.8 1.6 1 12/03/2024 05:00 Benzyl chloride ND 2.7 1 12/03/2024 05:00 Bromodichloromethane ND 1.4 1 12/03/2024 05:00 Bromoform ND 5.3 1 12/03/2024 05:00 Bromomethane 4.0 1.9 1 12/03/2024 05:00 1,3-Butadiene ND 1.1 1 12/03/2024 05:00 2-Butanone (MEK)ND 15 1 12/03/2024 05:00 t-Butyl alcohol (TBA)ND 16 1 12/03/2024 05:00 Carbon Disulfide 1.8 1.6 1 12/03/2024 05:00 Carbon Tetrachloride ND 1.3 1 12/03/2024 05:00 Chlorobenzene ND 2.4 1 12/03/2024 05:00 Chloroethane ND 1.3 1 12/03/2024 05:00 Chloroform ND 2.5 1 12/03/2024 05:00 Chloromethane ND 1.0 1 12/03/2024 05:00 Cyclohexane 46 18 1 12/03/2024 05:00 Dibromochloromethane ND 4.4 1 12/03/2024 05:00 1,2-Dibromo-3-chloropropane ND 0.12 1 12/03/2024 05:00 1,2-Dibromoethane (EDB)ND 0.078 1 12/03/2024 05:00 1,2-Dichlorobenzene ND 3.0 1 12/03/2024 05:00 1,3-Dichlorobenzene ND 3.0 1 12/03/2024 05:00 1,4-Dichlorobenzene ND 3.0 1 12/03/2024 05:00 Dichlorodifluoromethane ND 2.5 1 12/03/2024 05:00 1,1-Dichloroethane ND 2.0 1 12/03/2024 05:00 1,2-Dichloroethane (1,2-DCA)ND 2.0 1 12/03/2024 05:00 1,1-Dichloroethene ND 2.0 1 12/03/2024 05:00 cis-1,2-Dichloroethene ND 2.0 1 12/03/2024 05:00 trans-1,2-Dichloroethene ND 2.0 1 12/03/2024 05:00 1,2-Dichloropropane ND 2.4 1 12/03/2024 05:00 cis-1,3-Dichloropropene ND 2.3 1 12/03/2024 05:00 trans-1,3-Dichloropropene ND 2.3 1 12/03/2024 05:00 (Cont.) Page 19 of 33 165 Analytical Report McCampbell Analytical, Inc.1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: main@mccampbell.com"When Quality Counts" Client:Ninyo & Moore Project:403151011; City of SSF-MSB Date Received:11/22/2024 14:16 Date Prepared:12/03/2024 WorkOrder:2411F09 Extraction Method:TO15 Analytical Method:TO15 Unit:µg/m³ Volatile Organic Compounds Client ID Lab ID Matrix Date Collected Instrument Batch ID SV-4 2411F09-004A SoilGas 11/20/2024 10:22 GC24 12022422.D 307071 Analytes Result RL DF Date Analyzed 12.04 24.14 Initial Pressure (psia)Final Pressure (psia)Analyst(s) PRE 1,2-Dichloro-1,1,2,2-tetrafluoroethane ND 3.6 1 12/03/2024 05:00 Diisopropyl ether (DIPE)ND 2.1 1 12/03/2024 05:00 1,4-Dioxane ND 1.9 1 12/03/2024 05:00 Ethanol ND 95 1 12/03/2024 05:00 Ethyl acetate ND 1.9 1 12/03/2024 05:00 Ethyl tert-butyl ether (ETBE)ND 2.1 1 12/03/2024 05:00 Ethylbenzene 5.6 2.2 1 12/03/2024 05:00 4-Ethyltoluene ND 2.5 1 12/03/2024 05:00 Freon 113 ND 3.9 1 12/03/2024 05:00 Heptane ND 21 1 12/03/2024 05:00 Hexachlorobutadiene ND 2.2 1 12/03/2024 05:00 Hexachloroethane ND 4.9 1 12/03/2024 05:00 Hexane ND 18 1 12/03/2024 05:00 2-Hexanone ND 2.1 1 12/03/2024 05:00 4-Methyl-2-pentanone (MIBK)ND 2.1 1 12/03/2024 05:00 Methyl-t-butyl ether (MTBE)ND 1.9 1 12/03/2024 05:00 Methylene chloride ND 8.8 1 12/03/2024 05:00 Methyl methacrylate ND 2.1 1 12/03/2024 05:00 Naphthalene ND 2.7 1 12/03/2024 05:00 Styrene ND 2.2 1 12/03/2024 05:00 1,1,1,2-Tetrachloroethane ND 3.5 1 12/03/2024 05:00 1,1,2,2-Tetrachloroethane ND 0.70 1 12/03/2024 05:00 Tetrachloroethene 5.1 3.5 1 12/03/2024 05:00 Tetrahydrofuran ND 3.0 1 12/03/2024 05:00 Toluene 3.1 1.9 1 12/03/2024 05:00 1,2,4-Trichlorobenzene ND 3.8 1 12/03/2024 05:00 1,1,1-Trichloroethane ND 2.8 1 12/03/2024 05:00 1,1,2-Trichloroethane ND 2.8 1 12/03/2024 05:00 Trichloroethene ND 2.8 1 12/03/2024 05:00 1,2,3-Trichloropropane ND 3.1 1 12/03/2024 05:00 Trichlorofluoromethane ND 2.9 1 12/03/2024 05:00 1,2,4-Trimethylbenzene 11 2.5 1 12/03/2024 05:00 1,3,5-Trimethylbenzene ND 2.5 1 12/03/2024 05:00 Vinyl Acetate ND 18 1 12/03/2024 05:00 (Cont.) Page 20 of 33 166 Analytical Report McCampbell Analytical, Inc.1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: main@mccampbell.com"When Quality Counts" Client:Ninyo & Moore Project:403151011; City of SSF-MSB Date Received:11/22/2024 14:16 Date Prepared:12/03/2024 WorkOrder:2411F09 Extraction Method:TO15 Analytical Method:TO15 Unit:µg/m³ Volatile Organic Compounds Client ID Lab ID Matrix Date Collected Instrument Batch ID SV-4 2411F09-004A SoilGas 11/20/2024 10:22 GC24 12022422.D 307071 Analytes Result RL DF Date Analyzed 12.04 24.14 Initial Pressure (psia)Final Pressure (psia)Analyst(s) PRE Vinyl Chloride ND 0.26 1 12/03/2024 05:00 m,p-Xylene 16 4.4 1 12/03/2024 05:00 o-Xylene 6.7 2.2 1 12/03/2024 05:00 Xylenes, Total 23 2.2 1 12/03/2024 05:00 Surrogates REC (%)Limits 1,2-DCA-d4 104 70-130 12/03/2024 05:00 Toluene-d8 89 70-130 12/03/2024 05:00 4-BFB 125 70-130 12/03/2024 05:00 Page 21 of 33 167 Quality Control Report McCampbell Analytical, Inc.1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: main@mccampbell.com"When Quality Counts" Client:Ninyo & Moore Project:403151011; City of SSF-MSB Date Analyzed:11/26/2024 Date Prepared:11/26/2024 WorkOrder:2411F09 BatchID:306790 Analytical Method:ASTM D 1946-90 Unit:% Sample ID:MB/LCS/LCSD-306790 Instrument:GC51 Matrix:SoilGas Extraction Method:ASTM D 1946-90 QC Summary Report for ASTM D1946-90 Analyte MB Result MDL RL Oxygen ND 0.027 0.40 --- Analyte LCS Result LCSD Result SPK Val LCS %REC LCSD %REC LCS/LCSD Limits RPD RPD Limit Oxygen 3.5 3.5 4.2 83 83 70-130 0.276 20 Page 22 of 33 168 Quality Control Report McCampbell Analytical, Inc.1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: main@mccampbell.com"When Quality Counts" Client:Ninyo & Moore Project:403151011; City of SSF-MSB Date Analyzed:12/02/2024 Date Prepared:12/02/2024 WorkOrder:2411F09 BatchID:306976 Analytical Method:ASTM D 1946-90 Unit:% Sample ID:MB/LCS/LCSD-306976 Instrument:GC26 Matrix:Soilgas Extraction Method:ASTM D 1946-90 QC Summary Report for ASTM D1946-90 Analyte MB Result MDL RL Helium ND 0.050 0.050 --- Analyte LCS Result LCSD Result SPK Val LCS %REC LCSD %REC LCS/LCSD Limits RPD RPD Limit Helium 0.18 0.18 0.20 90 90 60-140 0.00955 20 Page 23 of 33 169 Quality Control Report McCampbell Analytical, Inc.1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: main@mccampbell.com"When Quality Counts" Client:Ninyo & Moore Project:403151011; City of SSF-MSB Date Analyzed:12/02/2024 - 12/03/2024 Date Prepared:12/02/2024 - 12/03/2024 WorkOrder:2411F09 BatchID:307071 Analytical Method:TO15 Unit:µg/m³ Sample ID:MB/LCS/LCSD-307071 Instrument:GC24 Matrix:SoilGas Extraction Method:TO15 QC Summary Report for TO15 Analyte MB Result MDL RL SPK Val MB IS/SS %REC MB IS/SS Limits Acetone ND 4.3 60 --- Acrolein ND 1.1 5.8 --- Acrylonitrile ND 0.66 1.1 --- tert-Amyl methyl ether (TAME)ND 1.3 2.1 --- Benzene ND 0.79 1.6 --- Benzyl chloride ND 1.7 2.7 --- Bromodichloromethane ND 0.13 1.4 --- Bromoform ND 1.1 5.3 --- Bromomethane ND 0.41 1.9 --- 1,3-Butadiene ND 0.98 1.1 --- 2-Butanone (MEK)ND 2.0 15 --- t-Butyl alcohol (TBA)ND 1.9 16 --- Carbon Disulfide ND 1.1 1.6 --- Carbon Tetrachloride ND 0.19 1.3 --- Chlorobenzene ND 0.59 2.4 --- Chloroethane ND 0.35 1.3 --- Chloroform ND 0.58 2.5 --- Chloromethane ND 0.52 1.0 --- Cyclohexane ND 1.6 18 --- Dibromochloromethane ND 1.1 4.4 --- 1,2-Dibromo-3-chloropropane ND 0.074 0.12 --- 1,2-Dibromoethane (EDB)ND 0.025 0.078 --- 1,2-Dichlorobenzene ND 0.95 3.0 --- 1,3-Dichlorobenzene ND 0.94 3.0 --- 1,4-Dichlorobenzene ND 0.97 3.0 --- Dichlorodifluoromethane ND 0.56 2.5 --- 1,1-Dichloroethane ND 0.50 2.0 --- 1,2-Dichloroethane (1,2-DCA)ND 0.58 2.0 --- 1,1-Dichloroethene ND 0.40 2.0 --- cis-1,2-Dichloroethene ND 0.43 2.0 --- trans-1,2-Dichloroethene ND 0.45 2.0 --- 1,2-Dichloropropane ND 0.59 2.4 --- cis-1,3-Dichloropropene ND 0.71 2.3 --- trans-1,3-Dichloropropene ND 0.86 2.3 --- 1,2-Dichloro-1,1,2,2-tetrafluoroethane ND 1.8 3.6 --- Diisopropyl ether (DIPE)ND 0.55 2.1 --- 1,4-Dioxane ND 0.71 1.9 --- Ethanol ND 3.8 95 --- (Cont.) Page 24 of 33 170 Quality Control Report McCampbell Analytical, Inc.1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: main@mccampbell.com"When Quality Counts" Client:Ninyo & Moore Project:403151011; City of SSF-MSB Date Analyzed:12/02/2024 - 12/03/2024 Date Prepared:12/02/2024 - 12/03/2024 WorkOrder:2411F09 BatchID:307071 Analytical Method:TO15 Unit:µg/m³ Sample ID:MB/LCS/LCSD-307071 Instrument:GC24 Matrix:SoilGas Extraction Method:TO15 QC Summary Report for TO15 Analyte MB Result MDL RL SPK Val MB IS/SS %REC MB IS/SS Limits Ethyl acetate ND 0.63 1.9 --- Ethyl tert-butyl ether (ETBE)ND 0.68 2.1 --- Ethylbenzene ND 0.51 2.2 --- 4-Ethyltoluene ND 0.61 2.5 --- Freon 113 ND 1.0 3.9 --- Heptane ND 2.4 21 --- Hexachlorobutadiene ND 0.38 2.2 --- Hexachloroethane ND 2.7 4.9 --- Hexane ND 2.2 18 --- 2-Hexanone ND 1.6 2.1 --- 4-Methyl-2-pentanone (MIBK)ND 0.94 2.1 --- Methyl-t-butyl ether (MTBE)ND 0.43 1.9 --- Methylene chloride ND 0.82 8.8 --- Methyl methacrylate ND 0.65 2.1 --- Naphthalene ND 1.9 2.7 --- Styrene ND 0.62 2.2 --- 1,1,1,2-Tetrachloroethane ND 1.2 3.5 --- 1,1,2,2-Tetrachloroethane ND 0.10 0.70 --- Tetrachloroethene ND 1.1 3.5 --- Tetrahydrofuran ND 0.82 3.0 --- Toluene ND 0.89 1.9 --- 1,2,4-Trichlorobenzene ND 2.7 3.8 --- 1,1,1-Trichloroethane ND 0.71 2.8 --- 1,1,2-Trichloroethane ND 0.85 2.8 --- Trichloroethene ND 0.69 2.8 --- 1,2,3-Trichloropropane ND 0.89 3.1 --- Trichlorofluoromethane ND 0.78 2.9 --- 1,2,4-Trimethylbenzene ND 1.2 2.5 --- 1,3,5-Trimethylbenzene ND 0.73 2.5 --- Vinyl Acetate ND 1.1 18 --- Vinyl Chloride ND 0.14 0.26 --- m,p-Xylene ND 1.1 4.4 --- o-Xylene ND 0.39 2.2 --- (Cont.) Page 25 of 33 171 Quality Control Report McCampbell Analytical, Inc.1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: main@mccampbell.com"When Quality Counts" Client:Ninyo & Moore Project:403151011; City of SSF-MSB Date Analyzed:12/02/2024 - 12/03/2024 Date Prepared:12/02/2024 - 12/03/2024 WorkOrder:2411F09 BatchID:307071 Analytical Method:TO15 Unit:µg/m³ Sample ID:MB/LCS/LCSD-307071 Instrument:GC24 Matrix:SoilGas Extraction Method:TO15 QC Summary Report for TO15 Analyte MB Result MDL RL SPK Val MB IS/SS %REC MB IS/SS Limits Surrogate Recovery 1,2-DCA-d4 1100 1000 106 70-130 Toluene-d8 980 1000 98 70-130 4-BFB 880 1000 88 70-130 (Cont.) Page 26 of 33 172 Quality Control Report McCampbell Analytical, Inc.1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: main@mccampbell.com"When Quality Counts" Client:Ninyo & Moore Project:403151011; City of SSF-MSB Date Analyzed:12/02/2024 - 12/03/2024 Date Prepared:12/02/2024 - 12/03/2024 WorkOrder:2411F09 BatchID:307071 Analytical Method:TO15 Unit:µg/m³ Sample ID:MB/LCS/LCSD-307071 Instrument:GC24 Matrix:SoilGas Extraction Method:TO15 QC Summary Report for TO15 Analyte LCS Result LCSD Result SPK Val LCS %REC LCSD %REC LCS/LCSD Limits RPD RPD Limit Acetone 19 16 12 157,F7 136 60-140 14.2 25 Acrolein 8.2 8.5 11.6 71 73 60-140 3.18 25 Acrylonitrile 14 13 11 125 120 60-140 4.42 25 tert-Amyl methyl ether (TAME)19 20 21 90 95 60-140 4.66 25 Benzene 13 14 16 82 89 60-140 8.03 25 Benzyl chloride 29 25 26.6 110 95 60-140 14.9 25 Bromodichloromethane 38 41 35 108 117 60-140 7.81 25 Bromoform 57 59 52.6 108 112 60-140 3.49 25 Bromomethane 17 19 19.6 87 96 60-140 10.7 25 1,3-Butadiene 5.3 5.9 11 48,F2 54,F2 60-140 11.0 25 2-Butanone (MEK)16 15 15 108 101 60-140 6.44 25 t-Butyl alcohol (TBA)16 15 15.6 101 96 60-140 5.11 25 Carbon Disulfide 12 14 16 72 88 60-140 20.3 25 Carbon Tetrachloride 35 38 32 109 118 60-140 8.14 25 Chlorobenzene 26 27 23.6 108 113 60-140 3.84 25 Chloroethane 8.6 9.4 13.6 63 69 60-140 9.40 25 Chloroform 27 29 24.6 108 118 60-140 8.32 25 Chloromethane 9.2 9.8 10.6 87 92 60-140 5.87 25 Cyclohexane 16 17 17.6 89 95 60-140 6.18 25 Dibromochloromethane 44 46 43.6 100 105 60-140 4.73 25 1,2-Dibromo-3-chloropropane 86 76 49 175,F7 156,F7 60-140 11.7 25 1,2-Dibromoethane (EDB)45 47 39 116 121 60-140 4.42 25 1,2-Dichlorobenzene 45 45 30.6 146,F7 147,F7 60-140 0.297 25 1,3-Dichlorobenzene 40 40 30.6 132 130 60-140 1.43 25 1,4-Dichlorobenzene 36 36 30.6 118 117 60-140 1.03 25 Dichlorodifluoromethane 25 27 25 100 109 60-140 7.89 25 1,1-Dichloroethane 19 21 20.6 93 103 60-140 9.89 25 1,2-Dichloroethane (1,2-DCA)22 23 20.6 105 113 60-140 7.77 25 1,1-Dichloroethene 19 20 20 94 99 60-140 4.96 25 cis-1,2-Dichloroethene 19 21 20 95 104 60-140 8.73 25 trans-1,2-Dichloroethene 18 19 20 92 97 60-140 5.90 25 1,2-Dichloropropane 21 23 23.6 90 98 60-140 8.27 25 cis-1,3-Dichloropropene 24 25 23 102 108 60-140 5.29 25 trans-1,3-Dichloropropene 24 25 23 105 107 60-140 2.54 25 1,2-Dichloro-1,1,2,2-tetrafluoroethane 32 35 35.6 91 99 60-140 8.61 25 Diisopropyl ether (DIPE)20 21 21 94 100 60-140 6.21 25 1,4-Dioxane 21 21 18.6 111 114 60-140 2.89 25 Ethanol 10 7.2 9.6 107 75 60-140 35.8,F2 25 (Cont.) Page 27 of 33 173 Quality Control Report McCampbell Analytical, Inc.1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: main@mccampbell.com"When Quality Counts" Client:Ninyo & Moore Project:403151011; City of SSF-MSB Date Analyzed:12/02/2024 - 12/03/2024 Date Prepared:12/02/2024 - 12/03/2024 WorkOrder:2411F09 BatchID:307071 Analytical Method:TO15 Unit:µg/m³ Sample ID:MB/LCS/LCSD-307071 Instrument:GC24 Matrix:SoilGas Extraction Method:TO15 QC Summary Report for TO15 Analyte LCS Result LCSD Result SPK Val LCS %REC LCSD %REC LCS/LCSD Limits RPD RPD Limit Ethyl acetate 20 21 18.6 108 112 60-140 3.49 25 Ethyl tert-butyl ether (ETBE)19 21 21 93 98 60-140 5.40 25 Ethylbenzene 22 23 22 98 104 60-140 5.22 25 4-Ethyltoluene 26 27 25 103 107 60-140 3.62 25 Freon 113 37 40 39 94 103 60-140 8.93 25 Heptane 20 21 21 94 100 60-140 6.80 25 Hexachlorobutadiene 77 77 54 143,F7 143,F7 60-140 0.507 25 Hexachloroethane 52 50 49.2 105 102 60-140 3.51 25 Hexane 15 16 18 85 91 60-140 6.55 25 2-Hexanone 22 25 21 106 121 60-140 13.4 25 4-Methyl-2-pentanone (MIBK)22 22 21 103 106 60-140 3.17 25 Methyl-t-butyl ether (MTBE)16 17 18.6 87 94 60-140 7.47 25 Methylene chloride 18 19 17.6 101 107 60-140 6.10 25 Methyl methacrylate 20 21 20.8 96 99 60-140 2.76 25 Naphthalene 45 42 26.5 169,F7 160,F7 60-140 5.69 25 Styrene 24 24 21.6 110 111 60-140 0.613 25 1,1,1,2-Tetrachloroethane 41 43 35 117 123 60-140 5.03 25 1,1,2,2-Tetrachloroethane 36 38 35 104 108 60-140 4.18 25 Tetrachloroethene 35 38 34.4 102 110 60-140 7.63 25 Tetrahydrofuran 15 16 15 103 104 60-140 1.41 25 Toluene 18 19 19 96 101 60-140 4.84 25 1,2,4-Trichlorobenzene 72 67 37.6 193,F7 178,F7 60-140 7.79 25 1,1,1-Trichloroethane 27 30 27.6 98 108 60-140 9.09 25 1,1,2-Trichloroethane 29 30 27.6 103 110 60-140 6.43 25 Trichloroethene 26 28 27.6 94 103 60-140 8.86 25 1,2,3-Trichloropropane 36 36 30.64 118 118 60-140 0.676 25 Trichlorofluoromethane 35 38 28.6 121 133 60-140 9.67 25 1,2,4-Trimethylbenzene 28 29 25 112 115 60-140 2.25 25 1,3,5-Trimethylbenzene 25 26 25 101 104 60-140 2.74 25 Vinyl Acetate 19 19 18 103 108 60-140 4.11 25 Vinyl Chloride 7.2 7.8 13 56,F2 60 60-140 7.64 25 m,p-Xylene 42 43 44 95 99 60-140 3.73 25 o-Xylene 23 23 22 103 105 60-140 1.59 25 (Cont.) Page 28 of 33 174 Quality Control Report McCampbell Analytical, Inc.1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: main@mccampbell.com"When Quality Counts" Client:Ninyo & Moore Project:403151011; City of SSF-MSB Date Analyzed:12/02/2024 - 12/03/2024 Date Prepared:12/02/2024 - 12/03/2024 WorkOrder:2411F09 BatchID:307071 Analytical Method:TO15 Unit:µg/m³ Sample ID:MB/LCS/LCSD-307071 Instrument:GC24 Matrix:SoilGas Extraction Method:TO15 QC Summary Report for TO15 Analyte LCS Result LCSD Result SPK Val LCS %REC LCSD %REC LCS/LCSD Limits RPD RPD Limit Surrogate Recovery 1,2-DCA-d4 1100 1100 1000 105 107 70-130 1.74 25 Toluene-d8 940 930 1000 94 93 70-130 1.08 25 4-BFB 1100 1100 1000 111 107 70-130 3.28 25 Page 29 of 33 175 McCampbell Analytical, Inc. 1534 Willow Pass Rd Pittsburg, CA 94565-1701 (925) 252-9262 CHAIN-OF-CUSTODY RECORD Page Lab ID Matrix Collection Date Hold Requested Tests (See legend below) Report to: Gregory Roberts 1301 Marina Village Parkway, Suite 110 Alameda, CA 94501 (408) 435-9000 FAX:(510) 633-5646 PO: 11/22/2024 ClientSampID Project:403151011; City of SSF-MSB WorkOrder:2411F09 1 of 1 Date Logged: Date Received:11/22/2024 1 2 3 4 5 6 7 8 9 10 11 12 Ninyo & Moore Bill to: Accounts Payable Ninyo & Moore 1301 Marina Village Parkway, Suite 110 Alameda, CA 94501 Requested TAT:5 days; ClientCode:NMO Email:groberts@ninyoandmoore.com EDF EQuIS Email HardCopy ThirdParty nmaccountspayable@ninyoandmoore.c Excel J-flagCLIP cc/3rd Party: WaterTrax Detection Summary Dry-Weight [A1_Standard _QC] A2411F09-001 SoilGas 11/20/2024 07:53SV-1 A A A2411F09-002 SoilGas 11/20/2024 08:32SSV-2 A A A2411F09-003 SoilGas 11/20/2024 09:26SSV-3 A A A2411F09-004 SoilGas 11/20/2024 10:22SV-4 A A 2411F09-005 SoilGas <Not Provided>Unused Summa A Prepared by: Valerie Alfaro NOTE: Soil samples are discarded 60 days after receipt unless other arrangements are made (Water samples are 30 days). Hazardous samples will be returned to client or disposed of at client expense. Comments: ATMOSPHERICGAS_SG(%)HELIUM_LC_SOILGAS(%)PRUNUSEDSUMMA TO15_Scan-SIM_SOIL(UG/M3)1 2 3 4 5 6 7 8 9 10 Test Legend: 11 12 The following SampIDs: 001A, 002A, 003A, 004A contain testgroup TO15He__O2_SG(UG/M3). Project Manager:Jennifer Lagerbom Page 30 of 33 176 LabID ClientSampID Collection Date & Time Date Logged: TATMatrixTest Name Cont./ Comp. WORK ORDER SUMMARY Work Order:2411F09 Comments: Client Name:NINYO & MOORE Project:403151011; City of SSF-MSB QC Level:LEVEL 2 HoldDry- Weight Sub Out Bottle & Preservative 11/22/2024 Sediment Content EDF EQuIS Email HardCopy ThirdPartyExcel J-flagCLIP Gregory RobertsClient Contact: groberts@ninyoandmoore.comContact's Email: WaterTrax Test Due DateHead Space U** McCampbell Analytical, Inc.1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: main@mccampbell.com"When Quality Counts" 001A SV-1 11/20/2024 7:53 5 daysSoilGasTO15 w/ Helium plus O2 1 1L Summa 12/3/2024 002A SSV-2 11/20/2024 8:32 5 daysSoilGasTO15 w/ Helium plus O2 1 1L Summa 12/3/2024 003A SSV-3 11/20/2024 9:26 5 daysSoilGasTO15 w/ Helium plus O2 1 1L Summa 12/3/2024 004A SV-4 11/20/2024 10:22 5 daysSoilGasTO15 w/ Helium plus O2 1 1L Summa 12/3/2024 1 of 1Page * STLC and TCLP extractions require 2 days to complete; therefore, all TATs begin after the extraction is completed (i.e., One-day TAT yields results in 3 days from sample submission). NOTES: - MAI assumes that all material present in the provided sampling container is considered part of the sample - MAI does not exclude any material from the sample prior to sample preparation unless requested in writing by the client. U** = An unpreserved container was received for a method that suggests a preservation in order to extend hold time for analysis. - Organic extracts are held for 40 days before disposal; Inorganic extract are held for 30 days. - ISM prep requires 5 to 10 days to complete; therefore, all TATs begin after the extraction is completed (i.e., One-day TAT yields results in 6 to 11 days from sample submission). Due date listed on WO summary will not accurately reflect the time needed for sample preparation. Cont./Comp. = Containers /Composites Page 31 of 33 177 Page 32 of 33178 Sample Receipt Checklist McCampbell Analytical, Inc.1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: main@mccampbell.com"When Quality Counts" Client Name:Ninyo & Moore WorkOrder №:2411F09 Date Logged:11/22/2024 Logged by:Valerie AlfaroMatrix:SoilGas Carrier:Antonio Mason (MAI Courier) Shipping container/cooler in good condition?Yes No Custody seals intact on shipping container/cooler?Yes No NA Samples Received on Ice?Yes No Chain of custody present?Yes No Chain of custody signed when relinquished and received?Yes No Chain of custody agrees with sample labels?Yes No Samples in proper containers/bottles?Yes No Sample containers intact?Yes No Sufficient sample volume for indicated test?Yes No NAAll samples received within holding time?Yes No NASample/Temp Blank temperature Yes No NAZHS conditional analyses: VOA meets zero headspace requirement (VOCs, TPHg/BTEX, RSK)? pH acceptable upon receipt (Metal: <2)?Yes No NA Temp: Chain of Custody (COC) Information Yes NoSample IDs noted by Client on COC? Yes NoDate and Time of collection noted by Client on COC? Yes NoSampler's name noted on COC? Sample Receipt Information Sample Preservation and Hold Time (HT) Information Sample labels checked for correct preservation?Yes No Project:403151011; City of SSF-MSB Comments: pH tested and acceptable upon receipt (200.7: ≤2; 533: 6 - 8; 537.1: 6 - 8)? Yes No NA UCMR Samples: Free Chlorine tested and acceptable upon receipt (<0.1mg/L) [not applicable to 200.7]? Yes No NA Date and Time Received:11/22/2024 14:16 Received by:Valerie Alfaro COC agrees with Quote?Yes No NA Custody seals intact on sample bottles?Yes No NA Page 33 of 33 179 Ninyo & Moore | 33 Arroyo Drive, South San Francisco, California | 403151011 | April 23, 2025 1301 Marina Village Parkway, Suite 110 | Alameda, California 94501 | p. 510.343.3000 ARIZONA | CALIFORNIA | COLORADO | NEVADA | TEXAS | UTAH ninyoandmoore.com 180 MSB Alternative Site Concepts Site Name Corridor Address APN(s)Est. Acreage Zoning Potential Rezoning, if needed Min DU/Acre Est. # of Units Very Low Low Moderate Above Moderate Affordability Program Pros Cons CEQA Action Estimated Costs Municipal Services Building N ECR 33 Arroyo Dr 010 400 270 1.87 T4C n/a 80 150 56 56 37 0 Public Private Partnership - 100% Affordable City owned and controlled In HE as a potential mixed income project that is 100% affordable so other sites may need to be contemplated in similar concept if small site; substantial change in use from current use Consistent with General Plan EIR W. Orange Library (Closed)N ECR 840 W Orange Avenue 013 250 050 1.54 Public RH-37.5 to match adjacent zoning; could consider higher density zoning 38 58 22 22 14 0 Public Private Partnership - 100% Affordable City owned and controlled; high resource area Will require a rezoning and subsequent CEQA analysis and costs; substantial change in use from current use Requires CEQA Analysis; No clear Streamlining Exemptions ~ $100K Consultant Contract San Mateo Co. Courthouse N ECR APN 011302280 011 302 280 1.20 RM-22 22 26 10 10 7 0 Public Private Partnership - 100% Affordable County has shown willingness to construct housing on other SMCo sites; adjacent to BART; high resource area County controlled and portion of site dedicated to new healthy facility; Will require a rezoning and subsequent CEQA analysis and costs; substantial change in use from current use Consistent with General Plan EIR - 999 Grand Ave 011 311 150 1.60 RM-22 22 35 13 13 9 0 1024 Mission Road 011 311 170 2.54 Public RM-22 to match adjacent zoning; could consider higher density zoning 22 56 21 21 14 0 Totals 117 44 44 29 0 SSF BART - Parking Areas N ECR 1600 El Camino Real (Parking Structure) 010 292 110; 010 212 080 6.00 T5 Corridor 80 480 48 24 0 408 15% rental inclusionary applied Has high density zoning in place; adjacent to BART; substantial development capacity; BART has proven record of supporting on- site housing BART requires parking replacement plan; substantial change in use from current use Consistent with General Plan EIR ~ $50k Parking Needs Assessment 1500 El Camino Real (fronts Mission)010 213 080 2.60 T5 Corridor 80 208 21 10 0 177 Totals 688 69 34 0 585 Foxridge School (Closed)N ECR Adjacent 257 Longford Drive 091 231 070 23.00 RM-22 22 506 190 190 127 0 Public Private Partnership - 100% Affordable Has zoning in place; substantial development capacity; state law permits workforce (teacher) housing on former school sites; high resource area Not transit friendly; substantial change in use from current use Consistent with General Plan EIR - Skyline Blvd Open Space N ECR Adjacent No Address - Open Space 091 090 999 13.50 OS Adjacent zoning is RM- 22 22 297 111 111 74 0 Public Private Partnership - 100% Affordable Adjacent to existing Skyline Village Condominium and associated roadway infrastructure Not transit friendly; substantial change in use from current use as open space; hillside ordinance may apply limiting development; has second adjacent parcel but shared jurisdiction with Pacifica Requires CEQA Analysis; No clear Streamlining Exemptions ~ $100K Consultant Contract 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 City of South San Francisco Legislation Text P.O. Box 711 (City Hall, 400 Grand Avenue) South San Francisco, CA File #:24-737 Agenda Date:8/28/2024 Version:1 Item #:9. Report regarding a resolution authorizing the City Manager to execute a Consulting Services Agreement between the City of South San Francisco and Plan to Place,LLC for Facilitation Services for Community Discussions of Decommissioned City Facilities,and consideration of potential alternatives.(Nell Selander, Economic and Community Development Director, and Megan Wooley-Ousdahl, Principal Planner) RECOMMENDATION Staff recommends City Council consider adopting a resolution approving a Consulting Services Agreement with Plan to Place,LLC for Facilitation Services for Community Discussions of Decommissioned City Facilities in an amount not to exceed $79,920 and authorizing the City Manager to execute the agreement.Should Council decline to approve the resolution as drafted,staff is seeking feedback on the alternatives discussed in the Conclusion section of this staff report. BACKGROUND Over the past year,the City has received significant public comment regarding the future use of the City-owned Municipal Services Building.Both the Municipal Services Building and West Orange Library are two aging pieces of the City’s infrastructure that beginning in 2014 were planned for decommissioning when their continued repair and maintenance begged the question -should they be substantially repaired or replaced?Over several years,the City planned for these buildings to be replaced and new community-serving spaces to be built,including a new Police Department,the new Library |Parks &Recreation Center,and eventually a new Fire Station 63.The planning effort for the delivery of these new facilities included substantial community outreach engagement,passage of a local sales tax measure (Measure W),selection of design and construction firms to complete the projects, property acquisition, and rezonings to accommodate these new uses. Staff detailed the current conditions of the Municipal Services Building and West Orange Library facilities,past planning efforts for these properties,reuse and redevelopment options for them,and information regarding a community engagement effort planned for Fall 2024 in a staff report and presentation to the City Council on June 26,2024 (see Link 1).During that meeting,Council directed staff to move forward with an inclusive community engagement process to hear from the community regarding the future of these sites.The input gathered during this engagement process would be used to help inform next steps for these City-owned properties. At its June 26th meeting,City Council also requested additional outreach meetings be held,in addition to the two Open Houses staff had proposed.Regarding the timeline for this effort,Council expressed an interest in allowing more time for community input,yet not excessively elongating the process.City Council also expressed appreciation for the engagement process for the new park at Linden Avenue and Pine Avenue which included multiple meetings and engagement opportunities,and refreshments.At the time staff received this City of South San Francisco Printed on 8/23/2024Page 1 of 8 powered by Legistar™220 File #:24-737 Agenda Date:8/28/2024 Version:1 Item #:9. included multiple meetings and engagement opportunities,and refreshments.At the time staff received this feedback from Council,the Request for Proposals to solicit a facilitator had already been released with responses due just two days later,on June 28th.Staff asked short-listed firms invited to interview to incorporate this expanded scope in their interview presentation.This expanded scope was then negotiated as part of the contract with the staff recommended firm, as detailed below. DISCUSSION Facilitation Professional Services Procurement Staff issued a Request for Proposals (RFP)on the City’s preferred procurement platform,OpenGov Procurement,on May 28,2024,with proposals due a month later,on June 28,2024.While this RFP was open to the general public,to generate interest in the project,staff notified a total of 11 firms and non-profits, including firms on the City’s on-call list and others that staff has worked with in the past on similar efforts. Twenty-five firms downloaded the proposal packet.Eight firms submitted proposals.Review and recommendation of a preferred firm consisted of a two-step process outlined below.In all,seven staff from three different City departments reviewed the proposals and participated in evaluating the responsive firms. Step 1. Paper Review of All Eight Proposals A panel of four staff members (the Director of Capital Projects,Deputy Director of Economic and Community Development,Chief Planner,and Principal Planner)reviewed the eight proposals.The panel rated the proposals in the following areas: 1.Knowledge and Understanding:Demonstrated understanding of the RFP objectives and work requirements.Identification of key issues.Methods of approach,work plan,and experience with similar projects related to type of services. 2.Management Approach and Staffing Plan:Qualifications of project staff (particularly key personnel such as the project manager),key personnel’s level of involvement in performing related work,and the team’s experience in maintaining schedule. 3.Qualifications of the Proposer Firm:Experience with similar projects.Technical experience in performing work related to type of services;record of completing work on schedule;strength and stability of the firm;technical experience and strength and stability of proposed subconsultants; demonstrated communications quality and success, and assessments by client references as available. 4.Presentation of a Concise and Responsive Proposal The total possible score a firm could receive was 100 points. The panel’s scores are included in Attachment 1. The top four scores, all above 80 points, were Lighthouse Public Affairs, Winter Consulting, Plan to Place, LLC, and SERA Design & Architecture. While Lighthouse Public Affairs received the top score during the paper review,staff made the decision to City of South San Francisco Printed on 8/23/2024Page 2 of 8 powered by Legistar™221 File #:24-737 Agenda Date:8/28/2024 Version:1 Item #:9. While Lighthouse Public Affairs received the top score during the paper review,staff made the decision to exclude them from the interview process because the City’s former Assistant City Manager is a principal at this firm.Staff was concerned about a conflict of interest specifically on this project,as the former Assistant City Manager was a key member of the project team managing Measure W and the planning process and development of the new L|PR Center.Staff reached out to Lighthouse Public Affairs to inform them of this decision. Step 2. Interviews of Top Three Firms Of the remaining applicants,staff invited the firms with the three highest-rated proposals to an interview.The firms included Plan to Place,LLC,Winter Consulting,and SERA Design &Architecture.City staff invited the firms to give a presentation and asked the firms to address the following prompt during their interview: For the interview,please watch the City Council meeting on June 26,2024.Staff presented a report to Council regarding this item,and City Council provided direction.During the interview, please discuss how you would adjust the proposed scope and timeline to address Council’s comments. Prior to the interviews,staff called references for all three firms.All three firms received strong references from former clients. These reference checks helped inform the interview questions. Interviews were conducted on July 29,2024,by a panel of three staff members (the Assistant City Manager, Director of Economic and Community Development,and Director of Parks and Recreation).After a presentation by the firm,including a response to the prompt above,the interview panelists asked each firm the following questions: 1.Can you speak to your experience facilitating sensitive community conversations? 2.How do you build credibility with community members? 3.What effective tools or processes do you use to ensure all voices are heard? 4.How do you create a transparent and open process that generates community buy-in? 5.How would you approach getting constructive feedback from community members who lack faith in the process? Members of the panel rated the interviews in the following areas: 1.Presentation Quality: Was the presentation professional, engaging, and concise? 2.Response to City Prompt:Response to the City’s prompt for the interview which was “Discuss how you would adjust the proposed scope and timeline to address Council’s comments from the 06/26/2024 City City of South San Francisco Printed on 8/23/2024Page 3 of 8 powered by Legistar™222 File #:24-737 Agenda Date:8/28/2024 Version:1 Item #:9. would adjust the proposed scope and timeline to address Council’s comments from the 06/26/2024 City Council meeting.” 3.Overall Q&A Responses 4.Demonstrated Qualifications of the Project Manager and Team 5.Demonstrated Experience with Similar Projects The total possible score a firm could receive was 100 points.The interview panel’s scores are included in Attachment 2. Staff Recommended Firm Based on the scoring of the interviews and the consensus of the panel,staff identified Plan to Place,LLC as the recommended firm.The firm’s description and biographical information on the staff for the proposed project is included as Attachment 3.In addition to submitting a thoughtful,comprehensive,and responsive scope of work in response to the RFP,Plan to Place delivered a concise and responsive interview presentation.They answered questions thoroughly, drawing parallels between past work and the proposed project. Plan to Place has extensive experience working with communities throughout the Bay Area on complex projects ranging from City-wide General Plans,Specific Plans,and Housing Elements,to the adaptive reuse of discrete sites and Vision Plans.They regularly facilitate conversations related to adaptive reuse,vital infrastructure improvements and essential services,housing and displacement,and more.Their sole focus is on the public facing side of projects. While the firm’s senior staff have urban design and planning backgrounds,the firm’s work is limited to just community engagement -they would not have a contractual interest in the outcome of the engagement effort as they would not be the planning or architecture firm engaged on future phases of a project to reuse or redevelop. Plan to Place also committed their most senior staff to completing the majority of the hours projected for this project -this is notable as the City would have the most experienced staff committed to this important and sensitive project. Proposed Scope of Work After the conclusion of the interview process,City staff contacted the Principal at Plan to Place and worked with them to revise the scope of work that was outlined in the Request for Proposals to better align with Council’s direction during the June 26,2024 meeting.Plan to Place’s updated proposed scope for this effort includes: ·Two Hosted Tours of the Municipal Services Building and West Orange Library sites,held prior to the Open Houses and on two different days to increase participation ·Two Community Open Houses City of South San Francisco Printed on 8/23/2024Page 4 of 8 powered by Legistar™223 File #:24-737 Agenda Date:8/28/2024 Version:1 Item #:9. ·Eight focus group meetings and pop-up activities ·Online feedback form to include prompts similar to those asked in the in-person community open houses to provide an equitable opportunity for input ·Outreach materials Attachment 4 is Plan to Place’s original proposal,submitted on June 28,2024.Attachment 5 is Plan to Place’s updated scope of work revised per Council’s guidance during the June 26, 2024 City Council meeting. Proposed Schedule City staff has revised the initial project schedule to allow for additional time and engagement opportunities,per guidance from Council during the June 26,2024 meeting.Staff now proposes that the Hosted Tours,Open Houses,and focus group meetings /pop-up activities be held over the fall (September through November 2024) and conclude with a presentation of the Community Engagement Summary Report to City Council in early 2025. Proposed Budget Plan to Place’s budget of $79,920 is commensurate with the level of effort for this initiative. This effort will be led by Plan to Place’s Principal and Senior Engagement Specialist who have led numerous community outreach and engagement efforts similar to this one and have experience facilitating community conversations on sensitive topics.Plan to Place staff have backgrounds in community engagement,urban design,landscape architecture,and the creative arts which will assist them in facilitating an engaging and dynamic community engagement process for the future of the MSB and West Orange Library sites.While this is a significant investment,it is important to note that disposition of the Municipal Services Building could have very substantial start-up and ongoing impacts on the City budget,and should be carefully considered.If approved by Council, the City Manager will execute the Contract Services Agreement with Plan to Place. FISCAL IMPACT The fee for this project ($79,920)will be absorbed by the operating budgets of the City Manager’s Office, Parks and Recreation Department,and the Economic and Community Development Department.There is no new impact to the General Fund associated with adopting the recommendation. CONCLUSION While staff recommends the consultant,Plan to Place,selected through a rigorous and competitive public procurement process and the proposed scope of work as presented with this staff report,there are various alternatives Council may wish to consider.Staff is presenting these options without recommendation and simply to provide Council with information to consider in evaluating whether or not to approve the associated resolution authorizing the City Manager to enter into a consulting services agreement with Plan to Place as presented in Exhibit A to the associated resolution. Alternative 1 - Reduced Scope or Phased Scope of Work While staff believes the negotiated price for the proposed scope is reasonable and reflective of the effort involved in a broad community engagement effort,Council could direct staff reduce the scope of work or phase City of South San Francisco Printed on 8/23/2024Page 5 of 8 powered by Legistar™224 File #:24-737 Agenda Date:8/28/2024 Version:1 Item #:9. involved in a broad community engagement effort,Council could direct staff reduce the scope of work or phase the scope of work.In a reduced scope of work scenario,staff would recommend returning to the scope of work identified in the RFP including just two community open houses,two tours,and a report to Council.In a phased approach,staff would recommend Council approve the associated resolution and direct staff to return to Council approximately halfway through the project with initial results of the outreach before proceeding with additional engagement and exhausting the full budget.The goal of a reduced or phased approach would be to spend no more than $50,000 and then return to Council before proceeding. Alternative 2 -Eliminate Outreach Effort and Remove the Municipal Services Building as a Housing Opportunity Site Over the past year,the City has received numerous comments from a group of residents requesting the Municipal Services Building site be removed from the City’s certified 2023-2031 Housing Element.As presented to Council on June 26,2024 and detailed in the staff report linked below,the State of California requires all jurisdictions in California to adopt a Housing Element and have it certified by the State Department of Housing and Community Development (HCD)every eight years.The Housing Element is a planning document prepared by local jurisdictions to identify how the jurisdiction will meet its Regional Housing Needs Allocation (RHNA).Cities do not have to build the housing,but they do have to rezone the site to permit housing and remove any constraints, to demonstrate capacity for housing development. The Municipal Services Building site was included in the City’s 2015-2023 Housing Element beginning in 2017 when the City was required by HCD to select a replacement Opportunity Site for the parcels now occupied by the L|PR Center (which was a previous Housing Element site).Opportunity Sites not developed during a Housing Element cycle are typically included in the following Housing Element,and so the Municipal Services Building site was carried forward from the 2015-2023 Housing Element to the City’s 2023-2031 Housing Element.Identifying a site as an Opportunity Site in the City’s Housing Element does not require it to be built for housing;however,if the site is used for something other than housing,an alternative site would be required to be identified as an Opportunity Site in its stead. If Council desires to remove the Municipal Services Building site from the City’s adopted and State-certified Housing Element,Council would need to consider and adopt an amendment to the Housing Element,which would then be submitted to HCD for review and approval.Removal of the Municipal Services Building site would require identification of other similar and suitable sites that can accommodate the same amount of affordable housing,and very low-income housing in particular.The Municipal Services Building is located in a high-opportunity area,providing lower income residents access to schools,jobs,and community amenities in a higher-income neighborhood.This furthers the State’s goals of providing lower income community members with access to opportunity.Any replacement sites would need to be similarly situated in high-opportunity areas of the City and,preferably,be City-controlled in order to maximize the amount of affordable housing possible within any housing development on the site. While Council could elect to replace the Municipal Services Building site with the West Orange Library site in the 2023-2031 Housing Element,the West Orange Library site may not be big enough to accommodate the amount of affordable housing that the Municipal Services Building can accommodate and therefore other sites City of South San Francisco Printed on 8/23/2024Page 6 of 8 powered by Legistar™225 File #:24-737 Agenda Date:8/28/2024 Version:1 Item #:9. amount of affordable housing that the Municipal Services Building can accommodate and therefore other sites may need to be identified in addition to the West Orange Library site.The City’s property holdings are primarily in the Downtown and so would not meet the high-opportunity threshold required of any other substitute Housing Element sites that would need to be identified.In this case,privately owned sites would need to be identified.Together,the West Orange Library site and any other identified replacement sites that would generate sufficient capacity for lower income housing would need to then be evaluated for feasibility - are there barriers (including economic barriers) to their development or redevelopment. Any identified replacement sites if not already zoned for housing (such as the West Orange Library site)would need to be rezoned to allow for housing development.This may also necessitate a General Plan Amendment depending on the identified sites.The process to replace the Municipal Services Building site with other suitable sites and complete any necessary rezonings would take nine months to a year to complete given the number of Planning Commission and City Council hearings necessary to complete the process,as well as capacity analysis and feasibility analysis on the selected sites. As previously discussed at the June 26th Council meeting,removal of the Municipal Services Building site as a housing opportunity site in the Housing Element leaves the future of the property uncertain and has no direct effect on immediate use of the property.With the opening of the L|PR Center,staff and functions previously housed at the Municipal Services Building were moved to the L|PR Center.Substantial building improvements would have to be identified through a feasibility study and identified improvements completed at the Municipal Services Building before services and programs could resume there.At this time,the City’s operating and capital budgets do not include funding capacity for the capital improvement costs or operating expenses necessary to reopen the Municipal Services Building.Therefore,reinitiation of services at the Municipal Services Building would not occur prior to identification of programming to be provided at the site,budgeting to provide funding,completion of required improvements,and hiring of necessary staff.In the interim,the Municipal Services Building would continue to remain unused. Finally,it should be noted that removing the Municipal Services Building site as a housing opportunity site in the City’s 2025-2031 Housing Element may not necessarily prevent it from ever being redeveloped for housing or affordable housing.Should the City determine that it wishes to lease the property for more than 15 years or sell the property,it would need to be surplused under the State’s Surplus Land Act.Through this State- mandated process,the property would need to be first offered to affordable housing developers and if offers are received,the City would be required by State law to engage in good faith negotiations for a period of time before declining or accepting an offer.If an offer is not accepted,the City could proceed to lease or sell the property for a use other than affordable housing once the State certifies that the surplus process has been adhered to and State law requirements met. Alternative 3 -Proceed with Community Engagement and Remove the Municipal Services Building as a Housing Opportunity Site Should Council wish to replace the Municipal Services Building site in the City’s 2025-2031 Housing Element with other similar and suitable opportunity sites,staff would strongly recommend also proceeding with a facilitated community engagement process as described in Plan to Place’s scope and proposed in the associated City of South San Francisco Printed on 8/23/2024Page 7 of 8 powered by Legistar™226 File #:24-737 Agenda Date:8/28/2024 Version:1 Item #:9. facilitated community engagement process as described in Plan to Place’s scope and proposed in the associated resolution.While the Municipal Services Building would be removed from the Housing Element,it would remain a City asset that has been largely decommissioned and plans should be made for its reuse or redevelopment.As illustrated by the discussion of capital and operating expenses and State Surplus Land Act requirements discussed above,significant City funding and effort will have to go into any reuse or redevelopment.As such,any future plans for the Municipal Services Building and West Orange Library should be informed by a broad community engagement effort, as is contemplated by the proposed scope of work. Links: 1.June 26, 2024 City Council Meeting, Agenda Item #20: <https://ci-ssf-ca.legistar.com/LegislationDetail.aspx?ID=6734493&GUID=D8B102CE-D536-48CA- Attachments: 1.Paper Review Scoring 2.Interview Scoring 3.Plan to Place Firm Description and Staff Bios 4.Plan to Place’s Proposal, as submitted on June 28, 2024 5.Plan to Place’s Revised Scope of Work and Budget, as submitted on August 13, 2024 Associated File: Resolution 24-783 City of South San Francisco Printed on 8/23/2024Page 8 of 8 powered by Legistar™227 Municipal Services Building Facility Assessment & Options to Proceed April 29, 2025 Government Code Section 54957.5 SB 343 Item 1 Agenda: 04/29/2025 SPECIAL CC 228 BACKGROUND 2 1970s •Central Fire Station located at 201 Baden •Aging facility (built 1948) •Insufficient space for fire admin staff, apparatus, and tools/supplies •Fire Dept adds 3rd firefighter to each engine co •Additional reserve apparatus, tools, and disaster supplies •Police Dept headquartered at 315 Maple •Cramped and inadequate for modern law enforcement operations 1974 •Measure G - $4.5 million Public Safety Building general obligation bond measure •Proposed financing for construction of a new 81,000 SF public safety complex at Grand & Chestnut •Required 2/3 majority approval from voters •Narrowly failed 229 BACKGROUND 3 1978 •Purchased 33 Arroyo •Building retrofitted to include City offices and temporarily house Fire Station 63 1979 •MSB substantially remodeled for Parks & Recreation and Police 1981 •Police Dept headquarters relocated to the MSB 230 BACKGROUND 4 2005 •Fire Administration moved from the MSB to 480 N. Canal, freeing up additional office space for the police department 2010 •Fire Department received FEMA grant to rehabilitate, modernize, seismically stabilize, and remediate Station 63 •Grant funded work was restricted to the station's original footprint 2015 •City Council decision to vacate MSB and West Orange Library •Relocate Library, Parks & Recreation, Police Department, and Fire Station 63 to new facilities 231 BACKGROUND 5 2021 •Council discussed MSB redevelopment options •Market rate residential •Fully affordable residential •Joint development with Buri Buri Shopping Center •Council approved purchase of 71 Camaritas for relocation of Station 63 •Council allocates funding for station design 2022 •Police Department headquarters relocated to 1 Chestnut 2023 •Library | Parks and Recreation Center opens 232 •The MSB site was included in the 2015-2023 and 2023-2031 Housing Elements Opportunity Sites list as a potential location for mixed-income housing •Inclusion in this list does not require the City to develop the site for housing and no direction has been given by Council to do so •Over the past several years, the City has received public comment asking to preserve the building and reopen it MSB LISTED AS A HOUSING ELEMENT OPPORTUNITY SITE 6 233 •In August 2024, Council directed staff to prepare: •A facility condition assessment to inform a cost estimate for reopening the MSB •A list of alternative Housing Element Opportunity Sites to inform whether to amend the Housing Element to remove the MSB •The following presentation includes: •Results of a facility condition assessment, seismic study, construction cost estimates, operating expense analysis, environmental monitoring results, and identified alternative Housing Element Opportunity Sites •Three options to proceed that staff recommend Council consider and provide direction on PURPOSE OF TODAY'S MEETING 7 234 Seismic Study 235 MSB Seismic Study 9 Purpose •Determine if MSB meets current seismic standards for public and essential facilities Key Findings •MSB does not meet current seismic standards •Significant seismic deficiencies •Major damage or collapse possible in strong earthquake 236 MSB Seismic Study 10 Potential Seismic Deficiencies •Weak wall-to-floor/roof connections •Insufficient wall and diaphragm strength •Discontinuous shear walls between floors •Vulnerable exterior concrete panels Estimated Costs for Seismic Upgrade •Risk Category II (Offices): $5.6M •Risk Category III (Assembly Uses): $6.5M •Risk Category IV (Emergency Services): $7.6M 237 MSB Seismic Study 11 Options •Voluntary seismic upgrade •Use the building “as is”, but; •No guarantee of performance in a major earthquake 238 Facility Condition Assessment Overview 239 Expert Consultant Team •City contracted with Group4 for independent project management. •Group4 subcontracted with Bureau Veritas to conduct inspection services. •TBD Consultants retained for cost estimate review. MSB Facility Condition Assessment 13 240 Overview •Bureau Veritas began inspection for assessment in 2024. •Based on visual assessment. •Review of architectural, MEP, and fire/life safety systems. •Assessment resulted in report, with cost estimating performed by TBD Consultants. MSB Facility Condition Assessment 14 241 Summary of Findings •Based on current costs, facility has a current replacement value of $142M to replace in- kind with new facility. •Years 0 -10 capital improvement costs valued at $41.4M. •In years 0 – 20: grows $44.5M (2025 dollars) or $52.6M (escalated per year). MSB Facility Condition Assessment 15 242 Cost Estimate Assumptions •Public / gathering space on the former Recreation portion of the building. •Office or other tenant use at PD half of facility. Potentially phased into unknown date in future. •Fire to remain until a new station is constructed. •Included full category IV seismic upgrade cost. MSB Facility Condition Assessment 16 243 Example Findings of Deficiencies •New roof: $3.3M •Plumbing: $3.6M •Fire suppression: $1.4M •Fire alarm system: $1M •HVAC + ducting: $3.7M •Electrical systems: $5M •Low voltage: $2.5M MSB Facility Condition Assessment 17 244 Bureau Veritas Full Renovation Cost Estimate 245 Full Renovation with Structural Upgrade 19 •Construction cost: $44.5M •Plus contingency: $13.3M •Total: $57.8M •Seismic (voluntary): $7.6M •Plus seismic: $65.4M 246 Group4 | Full Renovation with Structural Upgrade Cost Estimate 247 Full Renovation with Structural Upgrade 21 voluntary 248 22 Full Renovation with Structural Upgrade Minus seismic / structural: $65 million 249 Group4 | Partial Renovation Recreation Wing Only Cost Estimate 250 Partial Renovation – Recreation Wing 24 251 25 Partial Renovation – Recreation Wing 252 Operations and Maintenance Recreation Wing Only 253 Operations and Maintenance 27 Assumptions •The City would only operate the former Recreation Wing of the facility. •Additional costs if the former Police Department was occupied by City programs, offices, or tenant. •P&R classes operate M-F, 9:00 a.m. – 5:00 p.m. •Facility rentals on weekends. •Some fees for classes may be necessary to sustain programs. 254 Operations and Maintenance 28 Minimum Additional / New Staffing •Recreation Coordinator: 1 FTE •Administrative Assistant: 1 FTE •Instructor (hourly): 2.5 FTE •Rec Leader – Classes (hourly): 2.0 FTE •Rec Leader – Rentals (hourly): 0.80 FTE • Custodian (Day Shift): 1 FTE • Custodian (Swing Shift): 1 FTE •Senior Custodian: As needed 255 Operations and Maintenance 29 Expenditures + Revenues •On-going Supplies and Services: $253,425 per year (includes $180,000 utilities) •On-going Personnel Costs: $884,537 per year •One-time Supplies and Services Startup Costs: $90,000 •Revenue: ~$170,000 - $300,000 per year 256 Environmental Investigation 257 History •2021 Environmental Site Assessment Phase 1 --> indicated need for Phase 2 •2022 ESA Phase 2 --> indicated need for further testing •2023 & 2024 ongoing monitoring of sub foundation slab soil vapor monitoring Environmental Investigation 31 258 Findings •Benzene, likely from underground storage tank from former automotive use •PCE, likely from former My Cleaners next door •Benzene & PCE above residential thresholds •PCE, at some points in time, above commercial thresholds Environmental Investigation 32 259 Implications for the MSB •No hazards to current or past occupants •Ongoing monitoring recommended whether the building is occupied, or not •Remediation and ongoing monitoring plan will be needed if the site is redeveloped Environmental Investigation 33 260 Alternate Housing Element Opportunity Sites 261 •Removing the MSB site from the Housing Element will require a State- approved amendment •Removing the site will not alter what can be done --> Council can choose to redevelop or not •Alternate sites are available, but have some hurdles Alternate Housing Element Opportunity Sites 35 262 What are we looking for in a site? •Publicly owned with agency approval or indication they intend to develop the site for housing •Located in a high resource area (not clustered Downtown or along 101) •Able to accommodate at least 150 units Alternate Housing Element Opportunity Sites 36 263 Alternate Housing Element Opportunity Sites 37 Site Name Address Est. Acreage Est. # of Units CEQA Action Estimated Costs Municipal Services Building 33 Arroyo Dr 1.87 150 Consistent with General Plan EIR W. Orange Library (Closed)840 W Orange Avenue 1.54 58 Requires CEQA Analysis ~ $100,000 San Mateo Co. Courthouse APN 011302280 1.20 26 Consistent with General Plan EIR - 999 Grand Ave 1.60 35 1024 Mission Road 2.54 56 117 SSF BART - Parking Areas 1600 El Camino Real (Parking Structure)6.00 480 Consistent with General Plan EIR ~ $50,000 1500 El Camino Real (fronts Mission)2.60 208 688 Foxridge School (Closed)257 Longford Drive 23.00 506 Consistent with General Plan EIR - Skyline Blvd Open Space No Address - Open Space 13.50 297 Requires CEQA Analysis ~ $100,000 264 Options to Proceed 265 •Pause all discussion of the MSB for a period of 2 to 3 years while the City's budget position stabilizes •Reopen •Two options to proceed •Redevelopment •Housing Element Alternate Sites Options to Proceed 39 266 Option 1: Reopen Recreation Wing & Operate 267 Program •City-operated community center •Open Mon – Fri,9 am – 5 pm •20 hours of programming/day •Facility rentals, as available Next Steps •Assess demand for services and programming •Identify funding sources / balance other funding needs •Impact fees •Measure W revenue •General Fund reserve Option 1: Reopen Rec Wing & Operate 41 Cost •$29 million over 10 years (capital) •$1.1 million annually (operations) 268 Option 2: Reopen Recreation Wing and Lease 269 Cost •$29 million over 10 years (capital), or as can be reduced in the form of a tenant improvement credit Potential Lease Revenue Option 2: Reopen Rec Wing & Lease 43 270 Next Steps •Assess demand for tenants (unsuccessful RFP for West Orange Library) •Engage qualified broker to market the site broadly •Identify funding sources /balance other funding needs •Impact fees •Measure W revenue •General Fund reserve Option 2: Reopen Rec Wing & Lease 44 271 Option 3: Explore Site Redevelopment 272 Program •Flexible, to be determined by City Council Next Steps •Engage economic consultant to test various development scenarios •Return to Council for feedback to inform a Request for Qualifications •Issue RFQ Option 3: Explore Site Redevelopment 46 Cost (if Affordable) •Free/discounted land •$5 - $10 million housing funds loan Price (if Market Rate) •Approximately $5 million 273 Housing Element Amendment 274 •Staff does not recommend amending the Housing Element to replace the MSB as a Housing Opportunity site •Not one site that has it all – no easy swap •Process is costly, time consuming, and largely symbolic •The action could jeopardize the City's standing with the State Housing Element Amendment 48 275 Conclusion 276 •Like many other Bay Area communities, the City is experiencing a structural deficit •Operating new assets – like the Aquatic Center – will necessitate expenditure reductions and potentially drawing upon reserves •City would need to consider reduction in City services to accommodate budget impact of reopening the MSB Conclusion 50 277 •Staff is seeking direction on whether to: •Pause discussion of the MSB for a period of time (2-3 years) •Reopen the MSB and operate it as a City facility •Reopen the MSB and lease the facility •Redevelop the site Conclusion 51 278 Municipal Services Building Facility Assessment & Options to Proceed City of South San Francisco QUESTIONS? 279 Id Start time Name / Nombre 1 4/29/2025 16:51 Denni Harp 2 4/29/2025 18:07 Manny Mairena 3 4/29/2025 18:08 Kevin folan 4 4/29/2025 18:10 Anna 5 4/29/2025 18:20 Ava Marie romero 6 4/29/2025 18:22 Jeremy Levine 7 4/29/2025 18:28 Katherine Acosta 8 4/29/2025 18:28 Cynthia Marcopulos 9 4/29/2025 18:28 Mina Richardson 10 4/29/2025 18:30 Asha Grandbois 11 4/29/2025 18:31 Melanie Olson 12 4/29/2025 18:24 Roderick 13 4/29/2025 18:35 Jennifer Garstang 14 4/29/2025 18:49 Bryan Palomino 15 4/29/2025 18:50 Erin chazer