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HomeMy WebLinkAboutReso 183-2023 (File 23-994)Initial Study and Mitigated Negative Declaration for the Orange Memorial Park Aquatic Center Project, South San Francisco, California SEPTEMBER 8, 2023 (FINAL) PREPARED FOR City of South San Francisco PREPARED BY SWCA Environmental Consultants INITIAL STUDY/MITIGATED NEGATIVE DECLARATION FOR THE ORANGE MEMORIAL PARK AQUATIC CENTER PROJECT, SOUTH SAN FRANCISCO, CALIFORNIA Prepared for City of South San Francisco 400 Grand Avenue South San Francisco, California 94083 Attn: Phillip Vitale, Jr. Deputy Director of Capital Projects Prepared by SWCA Environmental Consultants 60 Stone Pine Road, Suite 100 Half Moon Bay, California 94019 (650) 440-4160 www.swca.com SWCA Project No. 78620 September 8, 2023 (FINAL) Orange Memorial Park Aquatic Center Project Initial Study/Mitigated Negative Declaration i CONTENTS 1 Introduction .......................................................................................................................................... 1 1.1 Project Location ........................................................................................................................ 1 1.2 Existing Conditions ................................................................................................................... 1 2 Project Description ............................................................................................................................... 4 2.1 Proposed Building Characteristics ............................................................................................ 4 2.2 Site Access, Parking, and Vehicle Circulation .......................................................................... 4 2.3 Recreation and Landscaping ..................................................................................................... 6 2.4 Utilities ...................................................................................................................................... 6 2.5 Construction .............................................................................................................................. 8 2.6 Required Discretionary Approvals ............................................................................................ 9 3 Environmental Checklist and Environmental Evaluation .............................................................. 10 I. Aesthetics ................................................................................................................................ 11 II. Agriculture and Forestry Resources ........................................................................................ 15 III. Air Quality ............................................................................................................................... 17 IV. Biological Resources ............................................................................................................... 23 V. Cultural Resources .................................................................................................................. 28 VI. Energy ..................................................................................................................................... 31 VII. Geology and Soils ................................................................................................................... 32 VIII. Greenhouse Gas Emissions ..................................................................................................... 36 IX. Hazards and Hazardous Materials ........................................................................................... 39 X. Hydrology and Water Quality ................................................................................................. 46 XI. Land Use and Planning ............................................................................................................ 52 XII. Mineral Resources ................................................................................................................... 53 XIII. Noise ........................................................................................................................................ 54 XIV. Public Services ........................................................................................................................ 60 XV. Recreation ................................................................................................................................ 62 XVI. Transportation ......................................................................................................................... 63 XVII. Tribal Cultural Resources ........................................................................................................ 66 XVIII. Utilities and Service Systems .................................................................................................. 69 XIX. Wildfire ................................................................................................................................... 74 XX. Mandatory Findings of Significance ....................................................................................... 76 4 References ........................................................................................................................................... 79 Appendices Appendix A. CalEEMod - SSF Orange Memorial Park Aquatic Center Detailed Report Appendix B. Cultural Resources Technical Report for the Orange Memorial Park Aquatic Center Replacement Project Appendix C. Orange Memorial Park Aquatic Center Trip Generation and VMT Assessment, Kittleson & Associates, June 21, 2023 Orange Memorial Park Aquatic Center Project Initial Study/Mitigated Negative Declaration ii Figures Figure 1. Project location. ............................................................................................................................. 2 Figure 2. Project vicinity and disturbance area. ............................................................................................ 3 Figure 3. Illustrative site plan. ...................................................................................................................... 5 Figure 4. Landscaping plan with stormwater LID ........................................................................................ 7 Figure 5a. East side of existing Aquatic Center from parking lot. .............................................................. 12 Figure 5b. East entrance to existing Aquatic Center. .................................................................................. 12 Figure 5c. West side of existing Aquatic Center with playground. ............................................................ 12 Figure 5d. South side of existing Aquatic Center with soccer fields. ......................................................... 12 Figure 6. San Francisco International Airport, Airport Influence Areas. ................................................... 45 Tables Table 1. Project Consistency with General Plan Policies ........................................................................... 14 Table 2. Estimated Construction Schedule, Equipment and Vehicle Trips ................................................ 20 Table 3. Estimated Maximum Daily Construction Criteria Air Pollutant Emissions ................................. 21 Table 3. Noise Level Standards .................................................................................................................. 54 Table 4. Typical Construction Equipment Noise Levels ............................................................................ 56 Table 5. Trip Generation ............................................................................................................................. 65 Table 6. Water Supply and Demand Estimates for Normal Water Years In Acre Feet (DWR Table 7-2) ........................................................................................................................................... 72 Table 7. CalWater Water Supply and Demand Estimates for Multiple Dry Years (DWR Table 7-4) ....... 72 Orange Memorial Park Aquatic Center Project Initial Study/Mitigated Negative Declaration 1 1 INTRODUCTION This section of the Initial Study provides a description of the Orange Memorial Park Aquatic Center Project (proposed project) and describes the location, surrounding land uses, existing conditions, and project components. 1.1 Project Location The City of South San Francisco (City) lies within San Mateo County in the San Francisco Bay Area. The City is located approximately 3 miles north of San Francisco International Airport and the City of San Bruno, just south of Daly City, Colma, and San Bruno Mountain, approximately 6 miles east of Pacifica, and west of the waters of San Francisco Bay. The 6.5-acre project site (APN 014-041-160) is located at 1 West Orange Avenue in South San Francisco, California (Figure 1). The project site is located within the larger 26.9-acre Orange Memorial Park, the largest developed park within the City and managed by the City’s Parks and Recreation Department. The project site is bounded by Tennis Drive to the north, W. Orange Avenue to the east, and Orange Memorial Park to the south and west (see Figure 1; Figure 2). 1.2 Existing Conditions The Orange Memorial Pool Aquatic Center was constructed in 1970 and is the City’s only indoor municipal swimming pool. The existing 11,840-square foot, single-story, six-lane pool building is located within the northeast portion of Orange Memorial Park. In addition to the Orange Pool, the 26.9-acre Orange Memorial Park contains the 21,600-square-foot Joseph A. Fernekes Recreation Building, a community arts building, multiple soccer fields, five tennis courts, basketball courts, ball fields, bocce ball courts, a skate park, two playgrounds, and picnic areas. The primary parking lot for the Aquatic Center is located at the corner of Tennis Drive and W. Orange Avenue. This lot contains 22 vehicle parking spaces. A larger parking lot, which serves the Aquatic Center and various uses in Orange Memorial Park, is located northwest of the Aquatic Center, between Tennis Drive and Circle Court. This lot contains 144 vehicular spaces. In addition, an overflow parking lot with 55 vehicle parking spaces is located north of the Aquatic Center, across Tennis Drive. The City recently completed construction of the Orange Memorial Park Stormwater Capture Project in the southern portion of the park. With this project, runoff will be captured by an instream diversion and pre- treatment structure (trash screen and sediment removal chamber) at the upper end of the Colma Creek flood control channel within the park. Pretreated water will then enter a diversion pipe leading to an underground stormwater storage reservoir. A portion of the storage facility will function as a cistern, holding water for eventual non-potable irrigation use in the park and for water trucks, and the remainder will function as an infiltration chamber to recharge groundwater in the Westside Groundwater Basin. These storage facilities are being constructed underneath a portion of the existing baseball and softball fields, which will be reconstructed in place as part of the stormwater capture project. The ground surface across the park is relatively level, with elevations varying from about 25 to 29 feet above mean sea level.1 1 Ninyo & Moore, Geotechnical Evaluation, Orange Memorial Park Aquatic Center, 1 West Orange Avenue, South San Francisco, California. Orange Memorial Park Aquatic Center Project Initial Study/Mitigated Negative Declaration 2 Figure 1. Project location. Orange Memorial Park Aquatic Center Project Initial Study/Mitigated Negative Declaration 3 Figure 2. Project vicinity and disturbance area. Orange Memorial Park Aquatic Center Project Initial Study/Mitigated Negative Declaration 4 2 PROJECT DESCRIPTION The proposed project includes demolition of the existing Orange Memorial Pool facility, the associated parking lot, and a portion of the existing recreational grass soccer field area and the construction of a new aquatic center. The new center would contain separate indoor and outdoor pools and amenity space, the relocated Eternal Flame sculpture into a new Veterans Memorial Plaza, a new parking lot with drop-off area, and associated walkways with new landscaping. 2.1 Proposed Building Characteristics The project would demolish the existing 22-space parking lot and a portion of existing grass soccer fields in the northeast portion of Orange Memorial Park along W. Orange Avenue and construct a new 23,070- square-foot aquatic center southeast of the existing Orange Memorial Pool. The facility would include a new building with an indoor pool and an attached outdoor pool. The single-story facility for the indoor pool would be approximately 30 feet in height and would contain an approximately 5,200-square foot, seven-lane indoor pool with a surrounding 2,920-square-foot pool deck. The pool would contain a volume of 173,264 gallons. Separate men’s, women’s, and family locker/changing rooms and restroom areas, staff changing and restroom areas, approximately 400 square feet of office space, a 800-square-foot activity room, and lobby, storage, and mechanical space would also be constructed within the new center. An approximately 6,287-square-foot, 10-lane outdoor pool with a volume of 283,956 gallons would be constructed adjacent to the center and to the south. The outdoor pool would have a surrounding 3,240- square-foot pool deck, pool storage, and bleachers and would be fenced by 15-foot-tall composite wood fencing (Figure 3). The proposed exterior materials for the aquatic center include painted cement plaster and composite wood cladding, with accent exterior glass detailing. The exterior materials palette primarily consists of a pre- finished “weathered steel” metal panel, composite wood cladding, and glazing. The proposed metal panel would be complementary to the color palette of the adjacent James A. Fernekes Building. In addition, the project would incorporate blue and aqua accent colors which are sprinkled throughout the building in the form of blue accent glazing, aqua colored cement plaster, and aqua colored signage. The exterior pool metal fencing would be painted dark bronze. 2.2 Site Access, Parking, and Vehicle Circulation The proposed project would construct the new aquatic center on the location of the existing 22-space parking lot. Once the new aquatic center is built, a new 13-space parking lot would be constructed in the location of the demolished pool, with access from Tennis Drive. Therefore, the project would shift the location of the existing Orange Pool parking lot and reduce the total vehicle parking spaces from 22 to 13 spaces for that primary lot. The 13 total spaces would include five Americans with Disabilities Act (ADA)–accessible spaces, one ADA-accessible electric-vehicle (EV) space, and two EV spaces. Vehicle ingress and egress into the parking lot would be provided from one-way driveways off Tennis Drive. Implementation of the project would also include roadway and sidewalk frontage improvements along Tennis Drive and new traffic calming measures, including pedestrian crossing signs, speed humps and new striping, would be installed on either side of the mid-block crosswalk. Eight bicycle racks would be installed for visitor use, and one interior bicycle rack would be available for staff use. Or a n g e M e m o r i a l P a r k A q u a t i c C e n t e r P r o j e c t In i t i a l S t u d y / M i t i g a t e d N e g a t i v e D e c l a r a t i o n 5 Fi g u r e 3 . I l l u s t r a t i v e s i t e p l a n . Orange Memorial Park Aquatic Center Project Initial Study/Mitigated Negative Declaration 6 2.3 Recreation and Landscaping The project would remove a portion of the existing soccer field area, reducing the total area of grass field by about 7,200 square feet. The remaining grass field would be temporarily fenced off and used for construction staging and parking during project construction but would be returned to existing conditions and improved for recreational use post-project, including soccer practices and games. The project would remove approximately 34 existing trees on-site that are concentrated within the location of the new aquatic center. Approximately 35 replacement trees of a variety of species would be replanted throughout the site (Figure 4). The project would renovate and relocate the large Eternal Flame sculpture to a newly created Veterans Memorial Plaza adjacent to the pedestrian walkway from the new parking lot to the aquatic center. The plaza would also include seating, accent lighting, relocated Veterans Memorial plaques, and a flagpole. In addition to planting 35 trees, other landscaping elements would include low-water shrubs and grasses (including coffeeberry, manzanita, lavender, fescue, and deergrass). Replacement Canary Island date palms would be planted along Tennis Drive. Three planting areas would be added on-site for stormwater retention and treatment and planted with stormwater treatment grasses (California grey rush [Juncus patens] and Canyon prince wild rye [Leymus condensatus]) (see Figure 4). These areas would encompass approximately 1,855 square feet of Low Impact Development (LID) treatment areas. Stormwater would be routed through the LID stormwater treatment areas, and excess stormwater would be directed to the stormwater system in W. Orange Avenue. 2.4 Utilities The project would replace and add new wastewater, water, and stormwater drainage throughout the project site. A new 4-inch lateral and water meter connected to the water main on W. Orange Avenue would be installed for potable and irrigation water supply. A new 6-inch water line and hydrant connected to the main on W. Orange Avenue would run from W. Orange Avenue down Tennis Drive and be installed adjacent to Tennis Drive at the northwest corner of the pool building. A new 8-inch sanitary sewer would connect to the existing sanitary sewer line located at the southern end of the soccer fields, west of W. Orange Avenue. Four- to 16-inch stormwater drainage pipelines would be routed throughout the project site and overflow lines would connect to the stormwater pipeline within W. Orange Avenue. New electrical and communications lines would connect to existing vaults for the new building. Existing electrical and communications lines would remain until demolition of the old pool building. Existing gas line infrastructure would be removed. Or a n g e M e m o r i a l P a r k A q u a t i c C e n t e r P r o j e c t In i t i a l S t u d y / M i t i g a t e d N e g a t i v e D e c l a r a t i o n 7 Fi g u r e 4 . L a n d s c a p i n g p l a n w i t h s t o r m w a t e r L I D Orange Memorial Park Aquatic Center Project Initial Study/Mitigated Negative Declaration 8 2.5 Construction Project construction is expected to begin in early 2024 and occur over a period of approximately 18 months. In addition to the area of project disturbance shown in Figure 2, the entirety of the recreational fields extending southwest from the disturbance area would be fenced off from park use and available for possible temporary construction parking and staging use. This staging area would extend to, but not include, W. Orange Avenue, Colma Creek, the basketball courts, Joseph A. Fernekes Building, and the adjacent playground. All or part of the construction staging area would be used to temporarily accommodate equipment and vehicle parking and materials storage. No ground disturbance would occur in the staging area. Before project completion, the grass and irrigation system would be repaired and replaced, and the recreational field returned to its existing condition. Construction activities would be phased as follows: 1. The site would be fenced, prepared and cleared in the vicinity of the easternmost parking lot and sports field area. The existing parking lot would be demolished and regraded. Trenching for new utilities would occur. Site grading activities would include raising the existing grade of the building footprint in areas within the designated floodplain to elevate the new structure out of the floodplain area. 2. The new aquatic center would be constructed, including utilities, sidewalks, and pathways necessary for access. The existing aquatic center would remain operational while the new facility is constructed. 3. Once the new pool building is operational, the existing pool building would be demolished and all old utility infrastructure removed. Demolition of the existing aquatic center would occur over a 3- month period. The site would be filled in and regraded for the new parking lot. 4. The new parking lot and Veterans Memorial plaza, with associated walkways, sidewalks, and lighting, would be constructed. The Eternal Flame sculpture would be relocated. Traffic calming measures on Tennis Drive would be installed, along with street and sidewalk improvements. 5. Construction activities would conclude with landscaping and final site work, including storm drainage, irrigation facilities, and rehabilitation of the staging area. Grading would include over-excavation of the pools and building foundations by approximately 2 to 3 feet, followed by laying rock and Geotech fabric for stability. Engineered fill, which could include up to 10 percent of native soils, would be added over the Geotech fabric and compacted prior to pouring concrete. Project construction would require approximately 9,700 cubic yards of soil to be removed from excavation for foundations, pools, and geotechnical improvements. The excavated soil would be analyzed, and if it is acceptable, approximately ten percent (970 CY) would be reused as fill and the remaining 8,730 CY would be hauled off. If the soil is not acceptable as engineered fill, then the entire 9,700 CY would be hauled off and approximately 970 CY would be imported for fill in addition to the importation of engineered fill. Fill would be required on-site to fill the existing pool excavation, level the surface and underly the parking lot, and to build up parts of the building footprint so the grade is above the flood zone where necessary. In addition to off hauling soils, demolition of the existing building and hardscape will generate approximately 800 cubic yards of debris which would be off-hauled for recycling or disposal. Thirty-four trees would also be removed and chipped. The estimated maximum depth of excavation is anticipated to be approximately 12 feet below ground surface for both the pools and new utilities. The project would reduce the pervious surface area from 56,925 square feet to 39,710 square feet and increase the impervious surface area by 17,215 square feet to 55,800 square feet. Orange Memorial Park Aquatic Center Project Initial Study/Mitigated Negative Declaration 9 Existing site materials would be recycled or reused following demolition, when feasible. Various recycled materials would be used in construction, and durable, long-lasting exterior finish materials would be incorporated throughout the project. Standard construction equipment, including excavators, graders, tractors, loaders, and pavers, would be used during project construction. No pile driving is proposed. Construction would take approximately 18 months to complete. Construction hours would be limited to 8:00 a.m. to 5:00 p.m., Monday through Friday. Activities may occur between 7:00 a.m. to 8:00 a.m. on weekdays and 9:00 a.m. to 4:00 p.m. on Saturdays, but such activities would be limited to quiet activities and would not involve engine-driven machinery. Although the City allows construction from 8:00 a.m. to 6:00 p.m. on Saturdays and 10:00 a.m. to 6:00 p.m. on Sundays, weekend construction is not anticipated and would require permission from the City. Access for construction would be from a temporary access gate on W. Orange Avenue. Construction staging and materials staging would occur on-site, including the adjacent soccer fields. All work would comply with the Regional Water Quality Control Board (RWQCB) Best Management Practices (BMPs) for stormwater management. Existing site materials would be recycled or reused following demolition, when feasible. Demolished asphalt and concrete would be taken to an asphalt recycling facility. 2.6 Required Discretionary Approvals This Initial Study/Mitigated Negative Declaration (IS/MND) provides environmental information and analysis in compliance with the California Environmental Quality Act (CEQA), which is necessary for City decision makers to be able to adequately consider the effects of the project. The City, as the CEQA lead agency, has approval authority and responsibility for considering the environmental effects of the project as a whole. The City is responsible for authorizing and approving the project. The project is requesting approval of the following permits: x Design Review permit x Certification of CEQA document x City Building permit and Youth, Parks and Community Enrichment approval x Grading permit x Tree removal permit Orange Memorial Park Aquatic Center Project Initial Study/Mitigated Negative Declaration 10 3 ENVIRONMENTAL CHECKLIST AND ENVIRONMENTAL EVALUATION ENVIRONMENTAL FACTORS POTENTIALLY AFFECTED The proposed project could have a "Potentially Significant Impact" for environmental factors checked below. Please refer to the attached pages for discussion on mitigation measures or project revisions to either reduce these impacts to less than significant levels or require further study. ܆ Aesthetics ܆ Greenhouse Gas Emissions ܆ Public Services ܆ Agriculture and Forestry Resources ܆ Hazards and Hazardous Materials ܆ Recreation ܆ Air Quality ܆ Hydrology and Water Quality ܆ Transportation ܆ Biological Resources ܆ Land Use and Planning ܆ Tribal Cultural Resources ܆ Cultural Resources ܆ Mineral Resources ܆ Utilities and Service Systems ܆ Energy ܆ Noise ܆ Wildfire ܆ Geology and Soils ܆ Population and Housing ܆ Mandatory Findings of Significance ENVIRONMENTAL DETERMINATION On the basis of this initial evaluation: ܆ I find that the proposed project COULD NOT have a significant effect on the environment, and a NEGATIVE DECLARATION will be prepared. ܈ I find that although the proposed project could have a significant effect on the environment, there will not be a significant effect in this case because revisions in the project have been made by or agreed to by the project proponent. A MITIGATED NEGATIVE DECLARATION will be prepared. ܆ I find that the proposed project MAY have a significant effect on the environment, and an ENVIRONMENTAL IMPACT REPORT is required. ܆ I find that the proposed project MAY have a “potentially significant impact” or “potentially significant unless mitigated” impact on the environment, but at least one effect 1) has been adequately analyzed in an earlier document pursuant to applicable legal standards, and 2) has been addressed by mitigation measure based on the earlier analysis as described on attached sheets. An ENVIRONMENTAL IMPACT REPORT is required, but it must analyze only the effects that remain to be addressed. ܆ I find that although the proposed project could have a significant effect on the environment, because all potentially significant effects (a) have been analyzed adequately in an earlier EIR or NEGATIVE DECLARATION pursuant to applicable standards, and (b) have been avoided or mitigated pursuant to that earlier EIR or NEGATIVE DECLARATION, including revisions or mitigation measures that are imposed upon the proposed project, nothing further is required. Date:September 9, 2023 Signed: Orange Memorial Park Aquatic Center Project Initial Study/Mitigated Negative Declaration 11 I. Aesthetics Environmental Issues Potentially Significant Impact Less Than Significant with Mitigation Incorporated Less Than Significant Impact No Impact Except as provided in Public Resources Code Section 21099, would the project: (a) Have a substantial adverse effect on a scenic vista? ܈܆܈܆ (b) Substantially damage scenic resources, including, but not limited to, trees, rock outcroppings, and historic buildings within a state scenic highway? ܆܆܆܈ (c) In non-urbanized areas, substantially degrade the existing visual character or quality of public views of the site and its surroundings? (public views are those that are experienced from publicly accessible vantage point). If the project is in an urbanized area, would the project conflict with applicable zoning and other regulations governing scenic quality? ܆܆܈܆ (d) Create a new source of substantial light or glare which would adversely affect day or nighttime views in the area? ܆܆܈܆ Environmental Evaluation a) Would the project have a substantial adverse effect on a scenic vista? Less than Significant. A scenic vista generally provides focal views of objects, settings, or features of visual interest, or panoramic views of large geographic areas of scenic quality, from a fixed vantage point or linear corridor, such as a roadway or trail. A significant impact would occur if a project introduced incompatible scenic elements within a field of view containing a scenic vista or substantially block views of an existing scenic vista. The project site is located in the northwest portion of the existing Orange Memorial Park on Tennis Drive and W. Orange Avenue. It is surrounded by residential areas to the north and east, and park facilities to the west and south. The project site currently contains an aquatic center with swimming pool, parking areas, and soccer fields (see Figures 5a-5d). The existing aquatic center was built in 1970. There are no designated scenic vistas visible from the project site, and the surrounding vicinity does not contain any designated historic buildings, rock outcroppings, or scenic highways. The nearest designated scenic highway is Interstate Route 280, which is located approximately 1.3 miles west of the project site (Caltrans 2023). Sign Hill, approximately 0.57 mile northeast of the site, is one of the most prominent features visible from Orange Memorial Park. Sign Hill includes 65 acres of open space and almost 2 miles of hiking trails with views of the San Francisco Bay (South San Francisco Parks Division 2023a). The project site is visible from several viewing points on Sign Hill, as well as from neighborhoods on West W. Orange Avenue and Tennis Drive and surrounding public streets. The project site is also visible from areas in Orange Memorial Park, including the soccer fields, tennis courts, and playground, and is visible in the distance from the Centennial Way bicycle and pedestrian trail, which is approximately 1,000 feet to the southwest. Or a n g e M e m o r i a l P a r k A q u a t i c C e n t e r P r o j e c t In i t i a l S t u d y / M i t i g a t e d N e g a t i v e D e c l a r a t i o n 12 Fi g u r e 5 a . E a s t s i d e o f e x i s t i ng A q u a t i c C e n t e r f r o m p a r k i n g lo t . Fi g u r e 5 b . E a s t e n t r a n c e t o e x i s t i n g A q u a t i c C e n t e r . Fi g u r e 5 c . W e s t s i d e o f e x is t i n g A q u a t i c C e n t e r w i t h pl a y g r o u n d . Fi g u r e 5 d . S o u t h s i d e o f e x i s t i n g A q u a t i c C e n t e r w i t h s o c c e r fi e l d s . Orange Memorial Park Aquatic Center Project Initial Study/Mitigated Negative Declaration 13 The proposed project would replace an existing indoor pool and a portion of the grass recreation (soccer) fields with a new complex of two pools, one indoor and one outdoor, with ancillary facilities including changing rooms and restrooms. The project would also replace the existing parking lot with a new, smaller parking lot and would plant 35 trees surrounding the pool facilities and new parking area (Figures 5a-d). The new pool building would be approximately 30 feet in height. Due to the topography of the project site and relative lack of buildings on the site compared with the surrounding urban development, view changes would typically occur at limited vantage points, as opposed to along extensive roadway segments or from entire large geographic areas. Furthermore, the new pool building would be one story and approximately 30 feet in height and integrate with the surrounding urban development along Tennis Drive and W. Orange Avenue and the park setting of Orange Memorial Park. The project would remove approximately 34 existing trees and would replant approximately 35 trees throughout the project site. Thus, while the project would alter the existing visual character of the project site, it would replace the existing pool and parking lot with similar updated facilities including trees and landscaping, therefore the project would not adversely affect a scenic vista or obstruct views of visual resources and this impact would be less than significant. While the project site could be visible within panoramic views from Sign Hill, the project site contributes to the existing urban setting of the area and would not be especially discernible among the surrounding urban development. Therefore, implementation of the project would not have a substantial adverse effect on a scenic vista and impacts would be less than significant. Construction impacts would include excavation, grading, and ground disturbance; heavy equipment operation and staging areas for equipment parking and material storage; and additional truck traffic on haul routes. Construction would last approximately 18 months; therefore, short-term visual impacts due to construction would be temporary and less than significant. No mitigation is required. b) Would the project substantially damage scenic resources, including, but not limited to, trees, rock outcroppings, and historic buildings within a state scenic highway? No Impact. The project site is not within a scenic highway corridor. The nearest designated scenic highway is Interstate Route 280, approximately 1.3 miles west of the project area. The project area does not have other scenic resources such as rock outcroppings or historic buildings (South San Francisco 2022a). Although the project would remove approximately 34 existing trees, it would replant approximately 35 trees surrounding the pool buildings and facilities. Therefore, the project would not substantially damage scenic resources, including those within a designated scenic highway. No impact would occur. c) In non-urbanized areas, would the project substantially degrade the existing visual character or quality of public views of the site and its surroundings? (public views are those that are experienced from publicly accessible vantage point). If the project is in an urbanized area, would the project conflict with applicable zoning and other regulations governing scenic quality? Less than Significant. The project is located in an existing City park that has a zoning designation of Parks and Recreation (PR) and a General Plan Land Use designation of Parks and Recreation. The project would replace an existing public pool facility and a portion of existing soccer fields with a new public pool complex. Therefore, it would not conflict with applicable zoning. The existing building’s age and heavy use have resulted in very worn condition of the shell and interior. Goal LU-10 of the 2040 General Plan identifies a goal of a high level of quality in the architecture and Orange Memorial Park Aquatic Center Project Initial Study/Mitigated Negative Declaration 14 site design of new construction. The exterior materials for the new aquatic center include pre-finished “weathered steel” metal pane, painted cement plaster and composite wood cladding, with accent exterior glass detailing. The exterior materials palette primarily consists of a pre-finished “weathered steel” metal panel, composite wood cladding, and glazing. The proposed metal panel would be complementary to the color palette of the adjacent Fernekes Building. In addition, the project would incorporate blue and aqua accent colors sprinkled throughout the building in the form of blue accent glazing, aqua colored cement plaster, and aqua colored signage. The South San Francisco 2040 General Plan does not include a visual element; however, there are visual and architectural guidelines under Chapter 5, Land Use and Community Design Element. Table 1 compares the project’s consistency with General Plan policies. Table 1. Project Consistency with General Plan Policies General Plan Policy Consistency Policy LU-8.4: Require street trees. Require new development to add street trees along streets and public spaces that provide shade, attractive landscaping, and contribute positively towards public health outcomes and climate mitigation and adaptation. Consistent. The project would plant 35 trees, including new street trees along W. Orange Avenue and Tennis Drive. Policy LU-8.8: Maintain and protect public views. Maintain and protect unique public views of the city, the bay, and local landmarks from major thoroughfares and hillside open spaces. Consistent. The project would not impact public views. New recreational facilities at Orange Memorial Park would integrate and harmonize with the surrounding urban development and would not be distinguishable from Sign Hill. Policy LU-9.2: Encourage architectural and visual interest in new development. Encourage distinctive architecture and elements that add visual interest to buildings to enhance people’s perceptions of South San Francisco as an interesting and inviting place. Consistent. The project would replace an aging pool facility with a new pool complex. The new pool complex would be constructed of metal panels, painted cement plaster, and composite wood cladding, in colors that complement the Fernekes Building, with exterior accents of aqua and blue in glazing, cement plaster and signage, and would be visually appealing. Policy LU-9.3: Require quality building materials. Require high- quality, long-lasting building materials on all new development projects in the city. Consistent. The project includes quality building materials, glazing, and infrastructure. Policy LU-9.4: Require walkable and inviting buildings and spaces. Require building design that creates walkable and inviting spaces, such as locating parking behind buildings, allowing for outdoor plazas and dining, and locating building frontages in close proximity to the sidewalk edge, where appropriate. Consistent. The new facilities would be integrated in the park design and easily accessible both from the park and from Tennis Drive. The project would reduce the overall number of parking spaces but would provide more ADA parking close to the building. As shown in Table 1, the project would be consistent with all General Plan policies related to visual and aesthetic impacts. Therefore, the project would not conflict with applicable zoning and other regulations governing scenic quality and this impact would be less than significant. d) Would the project create a new source of substantial light or glare which would adversely affect day or nighttime views in the area? Less than Significant. The project would include street and access lighting as required by the City, and would meet all requirements of the City Zoning Code and applicable building codes. As required by Section 20.3000.009 of the municipal code, all lighting fixtures would be fully shielded and located to avoid light spillover to adjacent properties. Further, light fixtures would not exceed 25 feet in height, and any light fixture located within 50 feet of a residence or public right-of-way would be further shielded to minimize light trespass onto adjacent properties. Orange Memorial Park Aquatic Center Project Initial Study/Mitigated Negative Declaration 15 Proposed window and selective door glazing would be tempered with a spectrally selective coasting to provide the highest visible transmittance, lowest shading coefficient, and high ultraviolet (UV) radiation blockage, therefore, the glass would not be highly reflective. Therefore, the project would not create a new source of substantial light or glare which would adversely affect day or nighttime views in the area and this impact would be less than significant. II. Agriculture and Forestry Resources Environmental Issues Potentially Significant Impact Less Than Significant with Mitigation Incorporated Less Than Significant Impact No Impact In determining whether impacts to agricultural resources are significant environmental effects, lead agencies may refer to th e California Agricultural Land Evaluation and Site Assessment Model (1997) prepared by the California Dept. of Conservation as an optional model to use in assessing impacts on agriculture and farmland. In determining whether impacts to forest resources, including timberland, are significant environmental effects, lead agencies may refer to information compiled by the Californi a Department of Forestry and Fire Protection regarding the state’s inventory of forest land, including the Forest and Range Assessment Project and the Forest Legacy Assessment project; and forest carbon measurement methodology provided in Forest Protocols adopted by the California Air Resources Board. Would the project: (a) Convert Prime Farmland, Unique Farmland, or Farmland of Statewide Importance (Farmland), as shown on the maps prepared pursuant to the Farmland Mapping and Monitoring Program of the California Resources Agency, to non-agricultural use? ܆܆܆܈ (b) Conflict with existing zoning for agricultural use, or a Williamson Act contract? ܆܆܆܈ (c) Conflict with existing zoning for, or cause rezoning of, forest land (as defined in Public Resources Code section 12220(g)), timberland (as defined by Public Resources Code section 4526), or timberland zoned Timberland Production (as defined by Government Code section 51104(g))? ܆܆܆܈ (d) Result in the loss of forest land or conversion of forest land to non-forest use? ܆܆܆܈ (e) Involve other changes in the existing environment which, due to their location or nature, could result in conversion of Farmland, to non-agricultural use or conversion of forest land to non-forest use? ܆܆܆܈ Environmental Evaluation a) Would the project convert Prime Farmland, Unique Farmland, or Farmland of Statewide Importance (Farmland), as shown on the maps prepared pursuant to the Farmland Mapping and Monitoring Program of the California Resources Agency, to non-agricultural use? No Impact. The project is located in the City of South San Francisco in Orange Memorial Park, an urban park, and surrounded by residential and commercial development. There is no agricultural or forest land in the vicinity of the project. Historically, the project vicinity supported several greenhouses used by the carnation-growing company Mazzanti Carnations, Inc., but operations ceased in 1996 when the land was purchased by the City for the expansion of park facilities (City of South San Francisco 2007; 2023a). The project site has a land use designation of Parks and Recreation in the City’s General Plan (City of South San Francisco 2022a). The areas surrounding Orange Memorial Park are designated as High, Medium, or Orange Memorial Park Aquatic Center Project Initial Study/Mitigated Negative Declaration 16 Low Density Residential; no parcels within the project vicinity are zoned for agricultural use (City of South San Francisco 2023b). No impacts to important farmland would occur. b) Would the project conflict with existing zoning for agricultural use, or a Williamson Act contract? No Impact. The proposed project is located in a City park and is not under Williamson Act contract. The surrounding area is not zoned for agricultural use or under Williamson Act contract. The project would not conflict with existing zoning for agricultural use or Williamson Act contracts and no impact would occur. c) Would the project conflict with existing zoning for, or cause rezoning of, forest land (as defined in Public Resources Code section 12220(g)), timberland (as defined by Public Resources Code section 4526), or timberland zoned Timberland Production (as defined by Government Code section 51104(g))? No Impact. The proposed project is located in a City park and is not zoned for timberland or timberland production. There project vicinity is urban, and there are no areas zoned for timber or timber production in the City (City of South San Francisco 2023b, 2023c). No impact to timberland would occur. d) Would the project result in the loss of forest land or conversion of forest land to non-forest use? No Impact. There is no forest land in the vicinity of the project (City of South San Francisco 2023b, 2023c). No impact would occur. e) Would the project involve other changes in the existing environment which, due to their location or nature, could result in conversion of Farmland, to non- agricultural use or conversion of forest land to non-forest use? No Impact. The project is located in a City park and the surrounding area includes urban uses. There is no farmland or forest land in the vicinity of the project. The project would not result in the conversion of farmland or forest land. No impact would occur. Orange Memorial Park Aquatic Center Project Initial Study/Mitigated Negative Declaration 17 III. Air Quality Environmental Issues Potentially Significant Impact Less Than Significant with Mitigation Incorporated Less Than Significant Impact No Impact Where available, the significance criteria established by the applicable air quality management district or air pollution control district may be relied upon to make the following determinations. Would the project: (a) Conflict with or obstruct implementation of the applicable air quality plan? ܆܆܆܈ (b) Result in a cumulatively considerable net increase of any criteria pollutant for which the project region is non-attainment under an applicable federal or state ambient air quality standard? ܆܆܈܆ (c) Expose sensitive receptors to substantial pollutant concentrations? ܆܆܈܆ (d) Result in other emissions (such as those leading to odors) adversely affecting a substantial number of people? ܆܆܈܆ Environmental Evaluation The proposed project is located within the San Francisco Bay Area Air Basin (Air Basin), which consists of the entirety of Alameda, Contra Costa, Marin, Napa, San Francisco, San Mateo, and Santa Clara Counties; the western portion of Solano County; and the southern portion of Sonoma County. The Air Basin is characterized by complex terrain consisting of coastal mountain ranges, inland valleys, and bays. The regional climate of the Air Basin is characterized by mildly dry summers and moderately wet winters. The region experiences moderate humidity with wind patterns consisting of mild onshore breezes during the day. The location of a strong subtropical high-pressure cell located in the Pacific Ocean induces foggy mornings and moderate temperatures during the summer, as well as occasional rainstorms during the winter. The air pollutants for which national and state standards have been promulgated and that are most relevant to air quality planning and regulation in the Bay Area include ozone, nitrogen oxides (NOX), carbon monoxide (CO), and particulate matter, including dust, 10 microns or less in diameter (PM10) and 2.5 micrometers or less in diameter (PM2.5). In addition, toxic air contaminants (TACs) are of concern in the Bay Area. Each of these pollutants is briefly described below: x Ozone is a gas that is formed when reactive organic gases (ROG) and NOX—both byproducts of internal combustion engine exhaust—undergo slow photochemical reactions in the presence of sunlight. Ozone concentrations are generally highest during the summer months when direct sunlight, light wind, and warm temperature conditions are conducive to its formation. Its effects can cause irritated respiratory system, reduced lung function, breathing pattern changes, reduced breathing capacity, inflamed and damaged cells that line the lungs, lungs to be more susceptible to infection, permanent lung damage, some immunological changes, increased mortality risk, and vegetation and property damage and aggravate asthma and other chronic lung diseases. x CO is a colorless, odorless gas produced by the incomplete combustion of fuels. CO concentrations tend to be the highest during winter mornings, with little to no wind, when surface-based inversions trap the pollutant at ground levels. Because CO is emitted directly from internal combustion engines—unlike ozone—and motor vehicles operating at slow speeds are the primary source of CO in the Bay Area, the highest ambient CO concentrations are generally found near congested transportation corridors and intersections. Potential health effects from CO range depending on exposure: slight headaches, nausea, aggravation of angina pectoris (chest Orange Memorial Park Aquatic Center Project Initial Study/Mitigated Negative Declaration 18 pain) and other aspects of coronary heart disease, decreased exercise tolerance in persons with peripheral vascular disease and lung disease, impairment of central nervous system functions, possible increased risk to fetuses, and death. x PM10 and PM2.5 consist of extremely small, suspended particles or droplets 10 microns and 2.5 microns or smaller in diameter, respectively. Some sources of particulate matter, like pollen and windstorms, are naturally occurring. However, in populated areas, most particulate matter is caused by road dust, diesel soot, combustion products, abrasion of tires and brakes, and construction activities. Health effects from short-term exposure (hours per days) can include the following: irritation of the eyes, nose, and throat; coughing; phlegm; chest tightness; shortness of breath; aggravation of existing lung disease, causing asthma attacks and acute bronchitis; and those affected with heart disease can suffer heart attacks and arrhythmias. Health effects from long-term exposure can include the following: reduced lung function, chronic bronchitis, changes in lung morphology, and death. x TACs refer to a diverse group of air pollutants that can affect human health but have not had ambient air quality standards established for them. Diesel particulate matter (DPM) is a toxic air contaminant that is emitted from construction equipment and diesel-fueled vehicles and trucks. Some short-term (acute) effects of DPM exposure include eye, nose, throat, and lung irritation; coughs; headaches; light-headedness; and nausea. Studies have linked elevated particle levels in the air to increased hospital admissions, emergency room visits, asthma attacks, and premature deaths among those suffering from respiratory problems. Human studies on the carcinogenicity of DPM demonstrate an increased risk of lung cancer, although the increased risk cannot be clearly attributed to diesel exhaust exposure. Other pollutants that are regulated but not considered an issue in the project area are sulfur dioxide, vinyl chloride, sulfates, hydrogen sulfide, and lead; the proposed project would not emit substantial quantities of those pollutants, so they are not discussed further in this section. Clean Air Plan Control Measures. The applicable air quality plan is the Bay Area Air Quality Management District (BAAQMD) 2017 Clean Air Plan (Clean Air Plan), which was adopted on April 19, 2017. The Clean Air Plan defines control strategies to reduce emissions and ambient concentrations of air pollutants; safeguard public health by reducing exposure to air pollutants that pose the greatest health risk; and reduce greenhouse gas emissions to protect the climate. The control strategies of the Clean Air Plan include measures in the following categories: Stationary Source Measures, Transportation Measures, Energy Measures, Building Measures, Agriculture Measures, Natural and Working Lands Measures, Waste Management Measures, Water Measures, and Super-Greenhouse Gas (GHG) Pollutants Measures. There are two categories of control measures that are applicable to the project – Transportation Control Measures and Waste Management Control Measures. The remainder do not apply to the project. The proposed project’s compliance with these control strategies is discussed under III (b) below. Transportation Control Measures. The BAAQMD identifies Transportation Measures as part of the Clean Air Plan to decrease emissions of criteria pollutants, TACs, and GHGs by reducing demand for motor vehicle travel, promoting efficient vehicles and transit service, decarbonizing transportation fuels, and electrifying motor vehicles and equipment. Waste Management Control Measures. The Waste Management Measures focus on reducing or capturing methane emissions from landfills and composting facilities, diverting organic materials away from landfills, and increasing waste diversion rates through efforts to reduce, reuse, and recycle. Construction and operation of the proposed project would be subject to applicable BAAQMD rules and requirements. The BAAQMD CEQA Thresholds and Guidelines were developed to assist local Orange Memorial Park Aquatic Center Project Initial Study/Mitigated Negative Declaration 19 jurisdictions and lead agencies in complying with the requirements of CEQA regarding potentially adverse impacts to air quality. The screening criteria established by the BAAQMD CEQA Thresholds and Guidelines dated April 2022 have been relied upon to make the following significance determinations. a) Would the project conflict with or obstruct implementation of the applicable air quality plan? No Impact. The 2017 Clean Air Plan is the current applicable regional Air Quality Plan (AQP) for the Air Basin (BAAQMD 2017). The primary goals of the 2017 Clean Air Plan are to protect public health and protect the climate, and the plan acknowledges that the BAAQMD’s two stated goals of protection are closely related. As such, the 2017 Clean Air Plan identifies a wide range of control measures intended to decrease both criteria pollutants and greenhouse gas (GHG) emissions. Because the proposed project does not involve population or employment growth, determining consistency with the 2017 Clean Air Plan involves assessing whether applicable control measures contained in the 2017 Clean Air Plan are implemented and whether implementation of the proposed project would disrupt or hinder implementation of AQP control measures. The control measures are organized into five categories: (1) stationary and area source control measures; (2) mobile source measures; (3) transportation control measures; (4) land use and local impact measures; and (5) energy and climate measures. The control measures are geared toward traditional land uses (e.g., residential, commercial, industrial uses) and buildings. All projects within BAAQMD’s jurisdiction are required to implement the BAAQMD BMPs during construction activities. As discussed in III (b), below, the proposed project would implement all required BMPs for construction activities and would be consistent with the assumptions in the AQP. Furthermore, the proposed project would not include any special features that would disrupt or hinder implementation of the AQP control measures. Therefore, the proposed project would not obstruct implementation of the 2017 Clean Air Plan and no impact would occur. b) Would the project result in a cumulatively considerable net increase of any criteria pollutant for which the project region is non-attainment under an applicable federal or state ambient air quality standard? Less than Significant. The BAAQMD’s thresholds of significance represent the allowable emissions a project can generate without generating a cumulatively considerable contribution to regional air quality impacts. Therefore, a project that would not exceed the BAAQMD thresholds of significance on a project level also would not be considered to result in a cumulatively considerable contribution to these regional air quality impacts. The region is non-attainment for the federal and state ozone standards, state PM10 standards, and federal and state PM2.5 standards. Impacts related to construction and operation of the proposed project are addressed separately below. CONSTRUCTION Emissions from construction-related activities are generally short term in duration but may still cause adverse air quality impacts. The proposed project would generate emissions from construction equipment exhaust, worker travel, and fugitive dust. These construction emissions include criteria air pollutants and precursors from the operation of heavy construction equipment. As discussed below, the proposed project’s construction emissions would not exceed any significance threshold adopted for this project . Therefore, the proposed project would have a less-than-significant contribution to cumulative impacts during construction. For all proposed projects, the BAAQMD recommends the implementation of BMPs, whether or not construction-related emissions exceed applicable thresholds of significance. As such, to ensure construction emission impacts are less than significant, the proposed project would apply the following BAAQMD BMPs during construction activities at the proposed project site: Orange Memorial Park Aquatic Center Project Initial Study/Mitigated Negative Declaration 20 x Exposed surfaces (e.g., parking areas, staging areas, soil piles, graded areas, unpaved access roads) shall be watered with non-potable water two times per day. x All haul trucks transporting soil, sand, or other loose material off-site shall be covered. x All visible mud or dirt track-out onto adjacent public roads shall be removed using wet power vacuum street sweepers at least once per day. The use of dry power sweeping is prohibited. x All roadways, driveways, and sidewalks shall be paved as soon as possible. x Idling times shall be minimized either by shutting equipment off when not in use or by reducing the maximum idling time to 5 minutes (as required by the California Airborne Toxics Control Measure in Title 13, Section 2485 of the California Code of Regulations [CCR]). Clear signage shall be provided for construction workers at all access points. x All construction equipment shall be maintained and properly tuned in accordance with manufacturer’s specifications. All equipment shall be checked by a certified visible emissions evaluator. x A publicly visible sign shall be posted with the telephone number and person to contact at the City regarding dust complaints. This person shall respond and take corrective action within 48 hours of a complaint or issue notification. The BAAQMD’s phone number shall also be visible to ensure compliance with applicable regulations. Construction emissions associated with the proposed project, including emissions associated with the operation of off-road equipment, haul-truck trips, on-road worker vehicle trips, vehicle travel on paved and unpaved surfaces, and fugitive dust from material handling activities, were calculated using the current California Emissions Estimator Model (CalEEMod) version 2022.1. CalEEMod is a statewide land use emissions computer model designed to provide a uniform platform for government agencies, land use planners, and environmental professionals to quantify potential criteria pollutant and GHG emissions associated with both construction and operation of a variety of land use projects. Emissions modeling included emissions generated during the following project phases: demolition (including demolition of the existing parking lot and pool building and removal of old utilities), site preparation (including grading and grubbing, and utility trenching), building construction (including construction of pool building, outdoor pool, parking lot, paths and sidewalks, street improvements), and architecture coating. Based on applicant-provided information, it is expected that construction activities associated with the proposed project would last 18 months. Table 2 shows the construction schedule, off-road construction equipment, worker and vendor trips, and on-site haul truck trips used to estimate emissions. Table 3 shows estimated air pollutant emissions. The exhaust emissions generated by construction equipment are based on the hours of operation, horsepower, and load factors of the equipment for which CalEEMod defaults were utilized. The detailed assumptions and calculations, as well as CalEEMod outputs, are provided in the Air Quality and Greenhouse Gas Technical Report (SWCA 2023) prepared for the project, which is included in Appendix A. Table 2. Estimated Construction Schedule, Equipment and Vehicle Trips Phase Construction Schedule Construction Equipment Number of Workers Haul, Vendor & Onsite truck trips/day Demolition of Parking lot January 2024 20 work days Tractors/loaders/backhoes Rubber tired dozers Concrete/Industrial saws 30 11 Orange Memorial Park Aquatic Center Project Initial Study/Mitigated Negative Declaration 21 Phase Construction Schedule Construction Equipment Number of Workers Haul, Vendor & Onsite truck trips/day Site preparation Jan-Feb 2024 23 work days Graders Rubber-tired dozers Tractors/loaders/backhoes 30 7 Grading March-April 2024 43 work days Graders Rubber-tired dozers Tractors/loaders/backhoes 30 7 Building Construction May 2024-Jan 2025 200 work days Cranes Forklifts Generators Tractors/loaders/backhoes Welders 30 9 Demolition of Center Feb-April 2025 64 work days Tractors/loaders/backhoes Rubber tired dozers Concrete/Industrial saws 30 23 Paving and Landscaping May-June 2025 40 work days Tractors/loaders/backhoes Pavers Paving equipment Rollers Cement and mortar mixers 20 3 Architectural coating June 2025 21 work days Air compressors 10 0 Source: CalEEMod version 2022.1.1.14 (see Appendix C); BAAQMD (2022) Table 3. Estimated Maximum Daily Construction Criteria Air Pollutant Emissions ROG NOx PM10 PM2.5 SO2 Fugitive Dust Pounds per Day Construction Emissions (Unmitigated) 12.5 16.6 8.74 3.64 0.04 Construction Emissions (Mitigated) 12.5 16.6 4.37 1.45 0.04 BAAQMD Threshold 54 54 82 54 N/A BMPs Threshold Exceeded? No No No No No Source: CalEEMod version 2022.1.1.14 (see Appendix C); BAAQMD (2022) OPERATION Long-term air pollutant emissions from operation of the new pool complex would primarily be those associated with mobile sources s (e.g., vehicle trips), energy sources (e.g., electricity – the project would not include natural gas), and area sources (e.g., architectural coatings and the use of landscape maintenance equipment) related to the proposed project. Vehicles traveling on paved roadways result in PM10 emissions from vehicle exhaust, tire and break wear, and dust thrown into the atmosphere. Energy source emissions from building mechanical systems such as pool filters and disinfection systems, lighting, heating and cooling, and plug-in electronics such as computers. Typically, area source emissions consist of direct sources of air emissions located at the project site, including architectural coatings and the use of landscape maintenance equipment. Area source emissions associated with the project would include emissions from the use of landscaping equipment and the use of consumer products. Orange Memorial Park Aquatic Center Project Initial Study/Mitigated Negative Declaration 22 Transportation Control Measures. The proposed project would replace an existing parking lot and pool building in Orange Memorial Park with a new pool facility and parking lot. Although the proposed project would result in a net increase in the number of vehicle trips due to increased pool programs, it would result in a net decrease in vehicle miles traveled (VMT) by expanding pool services and programs to serve South San Francisco residents so those residents would not have to travel to facilities in other cities (see Section 3.XVI, Transportation). The new pool facility would be located near residential areas and on a transit line, and would include bicycle parking facilities, which would help to reduce the demand for travel by single occupancy vehicles. Therefore, the project would promote BAAQMD initiatives to reduce vehicle trips and VMT and this impact would be consistent with the Transportation Control Measures. Waste Management Control Measures. The project would comply with local requirements for waste management (e.g., recycling and composting services). Therefore, the project would be consistent with the Waste Management Control Measures of the Clean Air Plan. The project would replace an aquatic center built in 1970. The project would remove existing natural gas infrastructure. The new facility would be all-electric, using no natural gas, which would reduce energy source emissions compared to the existing aquatic center. Although the project would increase pool capacity from one to two pools, and from six to 17 lanes, the new building and systems would be more energy efficient and would include rooftop solar panels to further defray energy source emissions. Electricity for South San Francisco is purchased from Peninsula Clean Energy, which purchases energy from renewable sources, minimizing energy source emissions (City of South San Francisco 2023d). The use of landscape maintenance equipment would not change appreciably over existing conditions. Architectural coatings would meet all applicable standards for air emissions. Therefore, the proposed project would have a less-than-significant contribution to cumulative air quality impacts during operation. c) Would the project expose sensitive receptors to substantial pollutant concentrations? Less than Significant. The BAAQMD considers a sensitive receptor to be any facility or land use that includes members of the population who are particularly sensitive to the effects of air pollutants, such as children, the elderly, and people with illnesses. The project is located in a public park surrounded by residential areas. The BAAQMD CEQA Air Quality Guidelines (BAAQMD 2022) recommends assessment of risks and hazards on sensitive receptors within 1,000 feet of the project. Existing sensitive receptors within this radius include residences on Tennis Drive, Circle Court, Amberwood Court, Idlewood Drive, Idlewood Court, Mahogany Drive, Bay Court, Railroad Avenue, Commercial Avenue, 1st Lane, 2nd Lane, 3rd Lane, Baden Avenue, Eucalyptus Avenue, W. Orange Avenue, Mayfair Avenue, Toyon Avenue, Mulberry Avenue, and Myrtle Avenue, as well as recreational users of Orange Memorial Park facilities including the Joseph A. Fernekes Building, playing fields, outdoor tennis courts, the skate park, and play structures. Short-term (18 months) construction activities could result in temporary increases in pollutant concentrations. The limited duration and limited quantities of construction emissions ensure that no individual receptor would be exposed to substantial pollutant concentrations. During construction, the BAAQMD BMPs would minimize construction impacts by reducing dust and exhaust emissions. Therefore, construction of the project would not expose sensitive receptors to substantial pollutant concentrations, and impacts would be less than significant. Operations of the pool complex as a result of the project would not change appreciably. As discussed above, the new pool complex would be more efficient in energy use, reducing operational emissions. Emissions from transportation would increase in the immediate vicinity due to an increase in the number of vehicle trips; however, it is likely that City residents are currently using pools in other jurisdictions that are further away. Expanding the Orange Pool facilities would provide additional classes and opportunities Orange Memorial Park Aquatic Center Project Initial Study/Mitigated Negative Declaration 23 for recreational swimmers closer to the city to better meet the demand from City residents. Therefore, the overall air emissions generated by traffic would decrease, as the project would cause a decrease in VMT by shortening vehicle trips for residents of South San Francisco. The project would also provide three EV charging stations in the new parking lot, promoting the use of electric vehicles. Therefore, construction and operation of the project would not expose sensitive receptors to substantial pollutant concentrations, and impacts would be less than significant. d) Would the project result in other emissions (such as those leading to odors) adversely affecting a substantial number of people? Less than Significant. The BAAQMD defines a significant impact related to odors as more than five confirmed odor complaints per year averaged over the past three years (BAAQMD 2022). The proposed project would include the use of pool chemicals; however, any localized odors associated with pool operation would be confined mainly to the project site and would readily dissipate. As such, operation of the proposed project is not expected to produce any offensive odors that would result in frequent odor complaints. During construction, a limited number of diesel engines would be operated on the project site for limited durations. Diesel exhaust and volatile organic compounds (VOCs) from these diesel engines would be emitted during construction of the proposed project, which are objectionable to some; however, the duration of construction activities is expected to last approximately 18 months, emissions would disperse rapidly from the project site, and diesel exhaust odors would be consistent with existing vehicle odors in the area. Considering this information, construction and operation of the proposed project would not create other emissions or odors adversely affecting a substantial number of people; impacts would be less than significant. IV. Biological Resources Environmental Issues Potentially Significant Impact Less Than Significant with Mitigation Incorporated Less Than Significant Impact No Impact Would the project: (a) Have a substantial adverse effect, either directly or through habitat modifications, on any species identified as a candidate, sensitive, or special status species in local or regional plans, policies, or regulations, or by the California Department of Fish and Game or U.S. Fish and Wildlife Service? ܆܆܆܈ (b) Have a substantial adverse effect on any riparian habitat or other sensitive natural community identified in local or regional plans, policies, regulations or by the California Department of Fish and Game or US Fish and Wildlife Service? ܆܆܆܈ (c) Have a substantial adverse effect on state or federally protected wetlands (including, but not limited to, marsh, vernal pool, coastal, etc.) through direct removal, filling, hydrological interruption, or other means? ܆܈܆܆ (d) Interfere substantially with the movement of any native resident or migratory fish or wildlife species or with established native resident or migratory wildlife corridors, or impede the use of native wildlife nursery sites? ܆܈܆܆ Orange Memorial Park Aquatic Center Project Initial Study/Mitigated Negative Declaration 24 Environmental Issues Potentially Significant Impact Less Than Significant with Mitigation Incorporated Less Than Significant Impact No Impact (e) Conflict with any local policies or ordinances protecting biological resources, such as a tree preservation policy or ordinance? ܆܆܈܆ (f) Conflict with the provisions of an adopted Habitat Conservation Plan, Natural Community Conservation Plan, or other approved local, regional, or state habitat conservation plan? ܆܆܆܈ Environmental Evaluation a) Would the project have a substantial adverse effect, either directly or through habitat modifications, on any species identified as a candidate, sensitive, or special status species in local or regional plans, policies, or regulations, or by the California Department of Fish and Game or U.S. Fish and Wildlife Service? No Impact. The project site includes 6.5 acres of the northeastern portion of Orange Memorial Park and encompasses the existing Orange Pool, a parking lot, and some of the existing soccer fields (see Figure 2 in Chapter 1, Project Description). In addition, the project would include the use of additional soccer fields as a staging and parking area. Located in an urbanized area, the project site is surrounded by residential areas and City park facilities. Colma Creek, approximately 400 feet southwest of the project disturbance area, and approximately 40 feet southwest of the staging and parking area, is a perennial creek that flows to San Francisco Bay and consists of a vertical and trapezoidal-shaped concrete drainage with concrete channel walls and bed. The project topography is primarily level, with elevations from 24 to 29 feet above mean sea level. The current landscape is dominated by the existing aquatic center and associated parking lot, a large soccer field to the southwest, a playground to the east, and scattered ornamental trees throughout the site. The project does not include habitat for a candidate, sensitive or special-status species in local or regional plans, or regulations, or by the California Department of Fish and Game or U.S. Fish or Wildlife Service; therefore, the project would not have a substantial effect on sensitive species either directly through habitat modification, and no impact would occur. b) Would the project have a substantial adverse effect on any riparian habitat or other sensitive natural community identified in local or regional plans, policies, regulations or by the California Department of Fish and Game or US Fish and Wildlife Service? No Impact. The project is located in a City park. Colma Creek nearest the project site is a concrete lined channel with no vegetation. According to the Environmental and Cultural Stewardship Element of the City’s 2040 General Plan, there is no riparian or other sensitive habitat identified on or in the vicinity of the project site (City of South San Francisco 2022a). Therefore, the project would not have a substantial adverse effect on any riparian habitat or other sensitive natural community identified in local or regional plans, policies, regulations or by the California Department of Fish and Game or US Fish and Wildlife Service. No impact would occur. Orange Memorial Park Aquatic Center Project Initial Study/Mitigated Negative Declaration 25 c) Would the project have a substantial adverse effect on state or federally protected wetlands (including, but not limited to, marsh, vernal pool, coastal, etc.) through direct removal, filling, hydrological interruption, or other means? Less than Significant with Mitigation. The project is located in a City park and there are no existing wetlands or waterbodies on the project site. The nearest water body is Colma Creek, approximately 400 feet to the southwest of the disturbance area, and 40 feet southwest of the temporary staging area. Colma Creek, in the vicinity of the project, has recently been modified for flood control management. The bottom and sides of the channel are lined with concrete. The City’s stormwater system discharges to Colma Creek and then to San Francisco Bay. Standard conditions of approval for all projects in the City include all stormwater quality BMPs required by the San Mateo Countywide Pollution Prevention Program (SMCWPPP) (see Section 3.X, Hydrology and Water Quality). All construction activities would be required to implement BMPs to comply with the SMCWPPP, which would prevent sediment-laden runoff and/or pollutants from leaving the site or impacting Colma Creek. Mitigation Measure BIO-1, which would require management of exposed soils and vehicle fueling and maintenance, would further reduce these less-than-significant impacts. Excavation for the project would occur in the northeastern corner of Orange Memorial Park. Stormwater runoff from excavation and construction activities could impact water quality in Colma Creek if it were allowed to discharge to the stormwater system. Standard conditions of approval for all construction projects in the City include all stormwater quality BMPs required by the SMCWPPP (see Section 3.X, Hydrology and Water Quality). All construction activities would be required to implement BMPs to comply with the SMCWPPP, which would prevent sediment-laden runoff and/or pollutants from entering the stormwater system or Colma Creek. Implementation of BMPs required by the SMCWPPP would prevent contaminated stormwater runoff from discharging to Colma Creek. Therefore, impacts to state or federally protected wetlands (including, but not limited to, marsh, vernal pool, coastal, etc.), including Colma Creek, through direct removal, filling, hydrological interruption, or other means, would be less than significant. Mitigation Measure BIO-1, which would require management of exposed soils and vehicle fueling and maintenance, would further reduce these less-than-significant impacts. Mitigation Measure BIO-1: The following measures shall be implemented to minimize impacts to stormwater drainages and Colma Creek in the vicinity of the project: a. All spoils, such as dirt, excavated material, debris, and construction-related materials, generated during project activities shall be placed where they cannot enter any drainage ditch or culvert inlet. Spoils shall be covered or secured to prevent sediment from escaping. Once the spoil pile is no longer active, it shall be removed from the work area and disposed of lawfully at an appropriate facility. b. All exposed soils in the work area resulting from project activities shall be stabilized immediately following the completion of work to prevent erosion. Erosion and sediment control BMPs, such as silt fences, straw hay bales, gravel or rock-lined drainages, water check bars, and broadcast straw, can be used. BMPs shall be made of certified weed-free materials. Straw wattles, if used, shall be made of biodegradable fabric (e.g., burlap) and free of monofilament netting. At no time shall silt-laden runoff be allowed to enter any drainages or other sensitive areas. c. All fueling and maintenance of vehicles and other equipment and staging areas shall occur at least 100 feet from any drainages and other water features. Prior to the onset of work, the construction contractor shall prepare a plan to be approved by the City before construction begins to allow a prompt and effective response to any accidental spills. All workers shall be informed of the importance of preventing spills, and of the appropriate measures to take should a spill occur. Orange Memorial Park Aquatic Center Project Initial Study/Mitigated Negative Declaration 26 d. Before completion of the project, all exposed or disturbed surfaces shall be permanently protected from erosion with reseeding and landscaping. e. All exposed surfaces shall be wetted periodically to prevent significant dust. f. All stockpiled soil shall be covered during periods of rain. d) Would the project interfere substantially with the movement of any native resident or migratory fish or wildlife species or with established native resident or migratory wildlife corridors, or impede the use of native wildlife nursery sites? Less than Significant with Mitigation. Due to the fragmentation, development, and high level of disturbance and human activity in the project area, it is not anticipated that the project would adversely affect a wildlife movement corridor. The public park, with scattered trees and grass soccer fields, is unlikely to provide migration habitat for wildlife. The BMPs required under the SMCWPPP would protect the stormwater system and Colma Creek from project runoff. The surrounding area includes urban development and would not include any wildlife corridors. Operation of the project would not change from existing conditions. Therefore, the project is not expected to interfere substantially with the movement of any native resident or migratory wildlife. As a result, there would be no impacts to migration and wildlife corridors. The project site may contain suitable nesting and foraging habitat for avian species protected under the Migratory Bird Treaty Act (MBTA) and California Fish and Game Code Sections 3511 and 3513. Trees and shrubs on the project site may provide nesting habitat for migratory birds, but are unlikely to provide habitat for raptors due to the high public use rates of the park. The project has the potential to impact potential eggs or young of avian species covered under the MBTA and California Fish and Game Code. Potential nesting sites for migratory birds could be removed through removal of 34 trees on the project site; however, ornamental trees in the nearby surrounding park, and trees in residential neighborhoods could provide suitable nesting and foraging habitat and would remain undisturbed by project construction. If work occurs during bird nesting season, implementation of Mitigation Measure BIO-2, which requires nesting bird surveys and construction modifications if active nests are identified, would ensure that potentially significant impacts to nesting birds would be less than significant. Mitigation Measure BIO-2: The following measures shall be implemented to minimize impacts to nesting birds, as required by the MBTA: a. If project activities, including, but not limited to, tree removal or pruning, grubbing and grading, are conducted during nesting bird season (February 15 to September 15), preconstruction nest surveys shall be conducted in and near the project (within 500 feet for large raptors and 300 feet for all other birds) by a qualified biologist within 7 days of the start of construction. If nesting birds are identified during the preconstruction survey, then the project shall be modified (i.e., a no-work exclusion buffer of appropriate size [to be determined by the qualified project biologist] shall be erected around active nests) and/or delayed as necessary to avoid impacts to the identified nests, eggs, and/or young. Disturbing active nests must be avoided until young birds have fledged. Orange Memorial Park Aquatic Center Project Initial Study/Mitigated Negative Declaration 27 e) Would the project conflict with any local policies or ordinances protecting biological resources, such as a tree preservation policy or ordinance? Less than Significant. The City’s 2040 General Plan’s Environmental and Cultural Stewardship Element includes policies to protect existing trees, expand the tree canopy cover, and enforce the Tree Preservation Ordinance (City of South San Francisco 2023e). Under the City’s Tree Preservation Ordinance, protected trees may not be removed or pruned back by more than a third without a permit. Protected trees include the following: x Any tree of the following species with a circumference of 75 inches or more when measured 54 inches above natural grade o Blue gum (Eucalyptus globulus) o Black acacia (Acacia melanoxylon) o Myoporum (Myoporum laetum) o Sweetgum (Liquidambar styraciflua) o Glossy privet (Lingustrum lucidum) o Lombardy poplar (Populus nigra) x Any heritage tree of the following species with a circumference of 30 inches or more when measured at 54 inches above natural grade o California bay (Umbellaria californica) o Oak (Quercus spp.) o Cedar (Cedrus spp.) o California buckeye (Aesculus californica) o Catalina ironwood (Lyonothamnus floribundus var. asplenifolius) o Strawberry tree (Arbutus spp.) o Mayten (Maytenus boaria) o Little Gem dwarf southern magnolia (Magnolia grandiflora 'Little Gem') x Any tree other than the species listed above with a circumference of 48 inches or more when measured 54 inches above natural grade x A tree or stand of trees so designated based upon findings that it is unique and of importance to the public due to its unusual appearance, location, or historical significance x A stand of trees whereby each tree is dependent upon the others for survival (City of South San Francisco 2023e) The project would remove 34 existing trees, none of which are heritage trees (Rizzoli 2023). Further, the project would plant 35 new trees to expand the City’s tree canopy cover in compliance with the Environmental and Cultural Stewardship Element of the City’s 2040 General Plan. New trees would include evergreen canopy trees such as Coast live oak (Quercus agrifolia), California pepper (Schinus molle), and stone pine (Pinus pinea), as well as deciduous canopy trees such as London plane tree (Platanus acerfolia ‘Columbia’), and, along Tennis Avenue, Canary Island date (Phoenix canariensis). Since the project would not remove any heritage trees and would replace the tree canopy by planting 35 trees, no impacts to heritage trees would occur. Policy CP-7.2 in the 2040 General Plan prioritizes expansion of the canopy cover to increase environmental benefits; including sequestering carbon dioxide, mitigating the urban heat island, improving air quality, providing traffic calming, and reducing energy use. The project would remove 34 Orange Memorial Park Aquatic Center Project Initial Study/Mitigated Negative Declaration 28 trees and replace them with 35 new trees. Therefore, although the project would remove trees, it would over time replace the lost canopy cover as the new trees mature. The project would not remove or prune any heritage trees and would replace removed trees, therefore, the project would not conflict with any local policies or ordinances protecting biological resources, such as general plan policies, tree preservation policy or ordinance, therefore the impact would be less than significant. f) Would the project conflict with the provisions of an adopted Habitat Conservation Plan, Natural Community Conservation Plan, or other approved local, regional, or state habitat conservation plan? No Impact. There are no Habitat Conservation Plans or Natural Community Conservation Plans, or other approved local, regional, or state habitat conservation plan, that apply to the project. Therefore, no impact would occur. V. Cultural Resources Environmental Issues Potentially Significant Impact Less Than Significant with Mitigation Incorporated Less Than Significant Impact No Impact Would the project: (a) Cause a substantial adverse change in the significance of a historical resource pursuant to § 15064.5? ܆܆܆܈ (b) Cause a substantial adverse change in the significance of an archaeological resource pursuant to § 15064.5? ܆܈܆܆ (c) Disturb any human remains, including those interred outside of dedicated cemeteries? ܆܈܆܆ Environmental Evaluation The analysis is based on a cultural resources investigation and technical report prepared by SWCA architectural historians and archaeologists that meet the Secretary of the Interior’s (SOI’s) Professional Qualification Standards (Appendix B). The cultural resources inventory included a California Historical Resources Inventory System (CHRIS) Northwest Information Center (NWIC) records search, a Sacred Lands File (SLF) search through the Native American Heritage Commission (NAHC) database, a buried site sensitivity analysis, a review of historic aerials and relevant literature, and an intensive pedestrian survey for archaeological and historical resources. a) Would the project cause a substantial adverse change in the significance of a historical resource pursuant to § 15064.5? No Impact. The investigation for the Cultural Resources Technical Memorandum identified one previously recorded historical resource on the project site. In addition, SWCA performed a field visit, walked the project area, and documented the architectural features of the existing pool building. The railroad tracks on Railroad Avenue that were a part of the Southern Pacific Junction known as CA-SMH-357 (P-41-000497) have been previously removed. The section of Railroad Avenue from Memorial Park to Spruce Avenue has been completely removed. Beyond Spruce Avenue, the rail bed continues without tracks, paralleling Railroad Avenue. This alignment has been completely redeveloped Orange Memorial Park Aquatic Center Project Initial Study/Mitigated Negative Declaration 29 in some sections, with ties, rails, and other components of the former structure removed in others. The former resource does not retain sufficient integrity to convey significance. No other cultural resources—archaeological or historical—are known to exist within the project area or its vicinity. The project area is mostly covered in turf grasses with concrete, asphalt, trees, and shrubs. Orange Pool, located at Orange Memorial Park in central South San Francisco, was constructed in 1970 and is a Mid- Century Modern natatorium (indoor swimming pool). The current pool building is surrounded by mature vegetation. Palm trees that line Tennis Avenue have a placard stating that they were planted in 1946, and a war memorial is located at the entrance to the pool building. The Orange Pool building was documented and evaluated for potential eligibility for listing in the California Register of Historical Resources (CRHR) and designation as a South San Francisco Historical Resource. Both assessments found no historic resources within the project area and that the Orange Pool building does not demonstrate historical significance such that it would qualify for listing or designation under either program. As such, Orange Pool does not appear to qualify as a historical resource. The project would refurbish and move the existing Eternal Flame sculpture to a new plaza area in the project area. Since the Eternal Flame sculpture was relocated from City Hall to the Park in the past, and would be relocated again as part of the project, the project would not affect the historical status of the sculpture. Therefore, the project, which includes the demolition of the current Orange Pool building and the construction of the new aquatic center, would have no impact on historical resources. b) Would the project cause a substantial adverse change in the significance of an archaeological resource pursuant to § 15064.5? Less than Significant with Mitigation. No archaeological resources, artifacts, or features were observed within the project area. As discussed above, the former railroad tracks on Railroad Avenue that were a part of the Southern Pacific Junction have been previously removed. The disturbed nature of the site through its grading and various periods of development and improvements as a municipal park suggests that the overall archaeological sensitivity for the project area is low. Despite this low overall sensitivity, it is possible that unknown archaeological resources are extant within the project area. Such resources have the potential to be impacted during the construction of the project, particularly during ground-disturbing activities. However, any project impacts to unknown archaeological resources can be mitigated to a less-than-significant level by following the Inadvertent Discovery procedures noted below in Mitigation Measure CUL-1. Mitigation Measure CUL-1: The following measures shall be implemented in the event that unanticipated cultural resources are exposed during project construction: a. In the event that unanticipated cultural resources are exposed during disturbance activities, work within 15 meters (50 feet) of the find must stop and an SOI-qualified archaeologist (SWCA Senior Project Manager Christina Alonso [925-399-9220]) must be notified immediately. Work may not resume until a qualified archaeologist can evaluate the significance of the find. Disturbance activities may continue in other areas. If the discovery proves significant, additional work such as archaeological testing, data recovery, or consultation with stakeholders may be warranted. Orange Memorial Park Aquatic Center Project Initial Study/Mitigated Negative Declaration 30 c) Would the project disturb any human remains, including those interred outside of dedicated cemeteries? Less than Significant with Mitigation. Although, according to the representative of the Amah Mutsun Band of Mission San Juan Bautista, railroads were historically built on Native burial grounds, there are no known cemeteries or burial sites in the project area. There is a low potential to encounter intact buried human remains within the project area. Despite this low overall sensitivity, it is possible that unanticipated human remains are extant within the project area, which have the potential to be impacted during the construction of the project, particularly during ground-disturbing activities. However, any project impacts to unknown human remains can be mitigated to a less-than-significant level by following the Discovery of Human Remains procedures noted below in Mitigation Measure CUL-2. Mitigation Measure CUL-2: The following measures shall be implemented in the event that human remains are exposed during project construction: The discovery of human remains during the course of the project is a possibility. If human remains are encountered, then the procedures outlined by the NAHC, in accordance with Section 7050.5 of the California Health and Safety Code and PRC Section 5097.98, would be followed. If the monitor determines that a discovery includes human remains: a. All ground-disturbing work within the immediate vicinity (25 feet) of the find would halt. b. The archaeologist would contact the San Mateo County Coroner: San Mateo County Coroner 50 Tower Road San Mateo, CA 94402 Phone: (650) 312-5562 Web: https://www.smcgov.org/coroner c. As a courtesy, the County Coroner would also notify the NAHC: Native American Heritage Commission 915 Capitol Mall, Room 364 Sacramento, CA 95814 Phone: (916) 373-3710 Email: nahc@nahc.ca.gov The County Coroner would have 2 working days to examine the remains after being notified in accordance with California Health and Safety Code Section 7050.5. If the San Mateo County Coroner determines that the remains are Native American and are not subject to the County Coroner’s authority, the County Coroner has 24 hours to notify the NAHC of the discovery. d. The NAHC would immediately designate and notify the Native American Most Likely Descendant (MLD), who will have 48 hours after being granted access to the location of the remains to inspect them and provide recommendations for the treatment of them. Orange Memorial Park Aquatic Center Project Initial Study/Mitigated Negative Declaration 31 VI. Energy Environmental Issues Potentially Significant Impact Less Than Significant with Mitigation Incorporated Less Than Significant Impact No Impact Would the project: (a) Result in a potentially significant environmental impact due to wasteful, inefficient, or unnecessary consumption of energy resources, during project construction or operation? ܆܆܈܆ (b) Conflict with or obstruct a state or local plan for renewable energy or energy efficiency? ܆܆܈܆ Environmental Evaluation a) Would the project result in a potentially significant environmental impact due to wasteful, inefficient, or unnecessary consumption of energy resources, during project construction or operation? The City of South San Francisco adopted their Climate Action Plan (CAP) in 2022 (City of South San Francisco 2022b). The CAP identifies strategies and actions to reduce GHG emissions and achieve carbon neutrality by 2045. Through the CAP, the City implements GHG reduction measures at both City-owned facilities and at private developments, including, but not limited to, energy-efficient new construction, all- electric construction of new buildings, the installation of solar facilities at City buildings; implementing landscape water requirements; requiring high efficiency water fixtures; increasing tree canopy; implementing a Travel Demand Management (TDM) program; and requiring electrical car charging stations at City facilities. Less than Significant. The proposed project would involve the demolition of a 50-year-old aquatic center, construction of a new aquatic center with two pools, mechanical equipment and infrastructure, and various landscaping and hardscape. During construction, energy consumption would be associated with primarily diesel and gasoline fuel consumption for the operation of construction equipment and for worker and haul trips. During operations, energy consumption would be limited to electricity needed for standard building and pool operations such as lighting, heating/cooling, and mechanical equipment, as well as outdoor exterior and landscape lighting. No natural gas is planned for consumption. The consumption of energy resources during construction would be temporary and the installation of a new and energy-efficient building and equipment is anticipated to function more effectively than the existing aquatic center. Therefore, implementation of the project would not result in potentially short- or long-term significant impacts due to wasteful, inefficient, or unnecessary consumption of energy resources. Instead, the proposed project would improve energy efficiency for the City’s aquatic center. While construction activities would involve diesel and gasoline fuel use for equipment and haul and commuter trips, overall consumption would be minimal and temporary, lasting approximately 18 months. For these reasons, the project’s energy use would be less than significant. b) Would the project conflict with or obstruct a state or local plan for renewable energy or energy efficiency? Less than Significant. The proposed Orange Pool Aquatic Center is considered a new development. The City’s CAP has goals for new development that include providing on-site solar and batteries when feasible; constructing all-electric buildings; exceeding mandatory energy efficiency requirements by 20 Orange Memorial Park Aquatic Center Project Initial Study/Mitigated Negative Declaration 32 percent or more; providing EV charging stations at municipal facilities; enhancing bicycle, transit and pedestrian connectivity; implementing mandatory organics and food waste diversion; using water efficient landscaping and high-efficiency water fixtures; expanding tree canopy cover; requiring all new municipal buildings and facilities to meet minimum LEED silver standards; and requiring municipal projects to achieve 75 percent waste diversion from landfill. The proposed project is consistent with the City’s CAP. The new pool facilities would meet or exceed energy efficiency requirements, are all-electric, include solar panels, and may include batteries if determined to be feasible. The project includes three EV charging stations in the new parking lot, 9 bicycle racks, water efficient landscaping and high-efficiency water fixtures. Proposed building materials and mechanical equipment would include energy-efficient glazing, insulation, and energy efficient models. At least 75 percent of asphalt or concrete removed during construction would be recycled. The project would also be consistent with all state plans for energy efficiency, including the 2017 California Air Resources Board Climate Change Scoping Plan, State of California Energy Plan, California Renewables Portfolio Standard Program, Clean Energy and Pollution Reduction Act of 2015, State Alternative Fuels Plan, California Green Building Standards Code—Part 11, Title 24, and California Code of Regulations (CALGreen), the first-in-the-nation mandatory green building standards code. For these reasons, the project would not conflict with a state or local plan for renewable energy or energy efficiency, and impacts on energy would be less than significant. VII. Geology and Soils Environmental Issues Potentially Significant Impact Less Than Significant with Mitigation Incorporated Less Than Significant Impact No Impact Would the project: (a) Directly or indirectly cause potential substantial adverse effects, including the risk of loss, injury, or death involving:  (i) Rupture of a known earthquake fault, as delineated on the most recent Alquist-Priolo Earthquake Fault Zoning Map issued by the State Geologist for the area or based on other substantial evidence of a known fault? Refer to Division of Mines and Geology Special Publication 42. ܆ ܆ ܈ ܆ (ii) Strong seismic ground shaking? ܆ ܆ ܈ ܆ (iii) Seismic-related ground failure, including liquefaction? ܆ ܈ ܆ ܆ (iv) Landslides? ܆ ܆ ܆ ܈ (b) Result in substantial soil erosion or the loss of topsoil? ܆ ܆ ܈ ܆ (c) Be located on a geologic unit or soil that is unstable, or that would become unstable as a result of the project, and potentially result in on- or off-site landslide, lateral spreading, subsidence, liquefaction or collapse? ☐܈☐܆ (d) Be located on expansive soil, as defined in Table 18- 1-B of the Uniform Building Code (1994), creating substantial direct or indirect risks to life or property? ☐☐☐܈ Orange Memorial Park Aquatic Center Project Initial Study/Mitigated Negative Declaration 33 Environmental Issues Potentially Significant Impact Less Than Significant with Mitigation Incorporated Less Than Significant Impact No Impact (e) Have soils incapable of adequately supporting the use of septic tanks or alternative waste water disposal systems where sewers are not available for the disposal of waste water? ☐☐☐܈ (f) Directly or indirectly destroy a unique paleontological resource or site or unique geologic feature? ☐܈☐☐ Environmental Evaluation a) Would the project directly or indirectly cause potential substantial adverse effects, including the risk of loss, injury, or death involving: The analysis in this section is based on the Geotechnical Evaluation – Revision 1 for the Orange Memorial Park Aquatic Center, December 6, 2022, by Ninyo and Moore. The geologic study includes seismic hazards (liquefaction, lateral spreading, subsidence), compressible soils, expansive soils, and corrosive soils. a-i) Rupture of a known earthquake fault, as delineated on the most recent Alquist- Priolo Earthquake Fault Zoning Map issued by the State Geologist for the area or based on other substantial evidence of a known fault? Refer to Division of Mines and Geology Special Publication 42. Less than Significant. The project site is located approximately 2 miles northeast of the San Andreas Fault Zone and is not located in a designated Alquist-Priolo Earthquake Fault Zone (California Geological Survey 2021). Therefore, while the project site is in a known seismic area and would likely be subject to earthquakes, the likelihood of surface faulting or ground rupture is considered low, and it would not be likely to be subject to surface rupture from a known earthquake fault. Therefore, potential impacts related to surface rupture from earthquake activity are less than significant. a-ii) Strong seismic ground shaking? Less than Significant. The project site is located approximately 2 miles northeast of the San Andreas Fault Zone and 16.3 miles southwest of the Hayward Fault Zone, in one of the most seismically active regions in the state. The San Andreas Fault has produced earthquakes of an estimated magnitude between 7.7 and 8.3 in 1906 (U.S. Geological Survey [USGS] 2023), and 6.9 in 1989 (USGS 2019). The 1908 quake produced shaking on the Modified Mercalli Intensity Scale of between VII and IX which was strong enough to cause significant damage to structures around the peninsula (USGS 2023). The design and construction of the project is required to comply with the building codes related to seismic risk such as the 2022 California Building Code (CBC) and South San Francisco Municipal Code, which incorporates the International Building Code. The City would be required to submit a soils report in order to obtain a building permit from the City Economic and Community Development Department, Building Division, which would ensure that project plans and specifications comply with the CBC and local amendments to the code, where applicable (City of SSF 2018). Among many seismic requirements, the CBC requires foundations and structures to be designed and constructed to withstand the ground motions (i.e., peak ground accelerations [g]) that have a 10 percent chance of being exceeded in 50 years Orange Memorial Park Aquatic Center Project Initial Study/Mitigated Negative Declaration 34 (equivalent to a 1/475 annual chance of being exceeded). Therefore, compliance with CBC requirements would result in a less-than-significant impacts due to strong seismic ground shaking. a-iii) Seismic-related ground failure, including liquefaction? Less than Significant with Mitigation. The project site is in a liquefaction hazard zone identified by the State Geologist (California Geological Survey 2021). The geotechnical study analyzed the potential for liquefaction from a magnitude 7.81 earthquake producing a peak ground acceleration (PGA) of 0.99 gravity (g). Peak ground acceleration is a measure of how hard the ground shakes at a given point. A PGA of 0.99g is correlated to an intensity of IX on the Modified Mercalli Scale, which would produce violent perceived ground shaking and heavy damage to man-made structures. The study assumed a groundwater depth of 12 to 13 feet. The results indicate that soil at depths ranging from about 10 to 23 feet, and from about 25 to 34 feet below ground surface may liquefy, potentially causing settlement, sand boils (where liquefied soils from below are ejected up through the ground surface), and ground subsidence. The study identified the potential for liquefaction of up to 5 inches in the liquefaction zone, and an additional 3 to 5 inches of settlement in the dry zone above the liquefaction zone. Since the site is located within a liquefaction-susceptible zone, and based on the results of the geotechnical evaluation, the project would have the potential for ground shaking, liquefaction-induced ground settlement, and sand-boil-induced ground subsidence. Therefore, impacts related to ground failure would be potentially significant. Implementation of the engineering recommendations provided in the geotechnical report, and proposed Mitigation Measure GEO-1, would minimize risks to life and property from seismic-related hazards. Therefore, this impact would be less than significant with mitigation incorporated. Mitigation Measure GEO-1: All earthwork and construction activities shall be monitored by a licensed engineer or professional geologist. The purpose of the monitoring is to assess soil conditions and confirm the appropriate engineered support systems are incorporated into the project design and installed correctly. Implementation of Mitigation Measure GEO-1, in addition to the requirements of the geotechnical report, would reduce impacts related to seismic hazards to less than significant. a-iv) Landslides? No Impact. The project site is relatively flat, with elevations varying from 25 to 29 feet above mean sea level. It is not located in an identified landslide hazard zone. Therefore, the project would not result in impacts related to landslide hazard and no impact would occur. b) Result in substantial soil erosion or the loss of topsoil? Less than Significant. A significant impact would occur if a project would expose large areas to the erosional effects of wind and water for a protracted period of time, resulting in substantial erosion and/or the loss of topsoil. The majority of the ground surface on the north side of the park consists of 1 to 4 feet of imported fill material on top of native soil. Much of it is paved over. The project site has a low- to-moderate erosion risk. Since the majority of the project work area is previously disturbed and essentially flat, clearing, excavation, and grading activities at the project site are unlikely to result in Orange Memorial Park Aquatic Center Project Initial Study/Mitigated Negative Declaration 35 significant short-term erosion impacts. In addition, project construction would comply with the SMCWPPP, which would include BMPs to prevent stormwater erosion from leaving the site. The project would also comply with the BAAQMD fugitive dust requirements, which would prevent dust from wind erosion from leaving the site. The project would require excavation for the new swimming pools, buildings, and parking area. The project would require a total of approximately 9,700 cubic yards (CY) of cut, approximately 970 CY of which may be used as fill. A maximum of approximately 9,700 cubic yards of soil and 800 cubic yards of debris from demolition of the existing pool and hardscape would be hauled off-site for disposal. Engineered fill would be imported to the site. As required by the San Francisco RWQCB and the SMCWPPP, the project would implement BMPs to reduce erosion during construction. Since the total area of disturbance is more than 1 acre (approximately 6.5 acres), the City would be required to implement a stormwater pollution prevention plan (SWPPP), according to the requirements of the San Francisco Bay RWQCB Municipal Regional Stormwater National Pollutant Discharge Elimination System (NPDES) Permit and the SMCWPPP. The plan would include BMPs to control erosion and sedimentation impacts and stabilize disturbed bare earth areas. Any bare earth areas would be reseeded prior to the end of construction. Section 3.X, Hydrology and Water Quality, provides additional information about the SWPPP and Municipal Regional Stormwater NPDES Permit requirements and related permits. The addition of approximately 17,215 square feet (approximately 0.4 acre) of impervious surface area for the aquatic center, parking lot, and walkways could increase the stormwater runoff volume and rate compared with existing conditions, which could in turn accelerate soil erosion and loss of topsoil if stormwater were conveyed directly into Colma Creek. However, as discussed in Section 3.X(a), the project is a C.3 regulated project and includes LID stormwater measures that meet City requirements to contain and treat stormwater flow. Stormwater from the project site would flow overland to treatment and containment areas on the project site. Overflow would discharge to a storm drain on W. Orange Avenue, which would eventually discharge to Colma Creek. Stormwater runoff would be directed into new vegetated channels, which would provide biotreatment of stormwater before it enters the storm drain and Colma Creek; this biotreatment meets the requirements of the C.3 program. All disturbed areas would be reseeded and/or landscaped prior to the end of construction. The new drainage and treatment system would be adequate to handle the additional volume of stormwater from 0.4 acre of impervious surface area. Therefore, impacts resulting from water-related erosion would be less than significant. c) Would the project be located on a geologic unit or soil that is unstable, or that would become unstable as a result of the project, and potentially result in on- or off-site landslide, lateral spreading, subsidence, liquefaction or collapse? Less than Significant with Mitigation. The project site has a high potential for liquefaction. As discussed above, the City has completed a geotechnical report and would be required to submit a soils report that complies with the CBC. As stated above, 2022 CBC and standard geotechnical engineering practice requires identification of seismic design parameters to inform all earthwork requirements, foundation designs, and concrete/building material specifications. Design and construction of the project in accordance with the CBC and the recommendations in the geotechnical report, along with implementation of Mitigation Measure GEO-1, would be sufficient to ensure public exposure to risks related to seismic-induced ground failure would remain minimal. Therefore, this impact would be less than significant with mitigation incorporated. Orange Memorial Park Aquatic Center Project Initial Study/Mitigated Negative Declaration 36 d) Would the project be located on expansive soil, as defined in Table 18-1-B of the Uniform Building Code (1994), creating substantial direct or indirect risks to life or property? No Impact. The geotechnical report determined that the expansion index of the soils on the project site had very low expansion potential, and the subsurface borings showed granular soils with little expansion potential. There are no substantial direct or indirect risks to life or property as the expansion index of the soils on the project site had very low expansion potential. Therefore, the risk related to expansive soils is relatively low and this impact would be less than significant. e) Would the project have soils incapable of adequately supporting the use of septic tanks or alternative wastewater disposal systems where sewers are not available for the disposal of wastewater? No Impact. The project would not include septic systems or alternative wastewater disposal systems. No impact would occur. f) Would the project directly or indirectly destroy a unique paleontological resource or site or unique geologic feature? Less than Significant with Mitigation. While the majority of the project site has been previously disturbed as a developed recreational park, ground disturbance and excavation for the pools and within the project area would occur during construction. Excavation in these areas could potentially uncover unique paleontological resources or geologic features. Based on the results of borings for the adjacent Stormwater Capture Project, located approximately 120 feet southwest of the project, the likelihood of encountering unique paleontological resources or geologic features is low; however, the potential for uncovering such resources during excavation remains. Mitigation Measure CUL-1 requires that if historic or cultural resources are encountered during site grading or excavation activities, all work shall be halted within 100 feet of the discovery area and the contractor shall notify the City. The implementation of this measure also applies to paleontological resources and geologic features, thereby minimizing potential impacts to such resources. Therefore, impacts to unique paleontological resources or unique geologic features would be less than significant with mitigation. VIII. Greenhouse Gas Emissions Environmental Issues Potentially Significant Impact Less Than Significant with Mitigation Incorporated Less Than Significant Impact No Impact Would the project: (a) Generate greenhouse gas emissions, either directly or indirectly, that may have a significant impact on the environment? ܆܆܈܆ (b) Conflict with an applicable plan, policy or regulation adopted for the purpose of reducing the emissions of greenhouse gases? ܆܆܈܆ Environmental Evaluation Global climate change can be measured by changes in wind patterns, storms, precipitation, and temperature. Scientific consensus has identified human-related emissions of greenhouse gases (GHGs) Orange Memorial Park Aquatic Center Project Initial Study/Mitigated Negative Declaration 37 above natural levels is a significant contributor to global climate change. GHGs are substances that trap heat in the atmosphere and regulate the Earth’s temperature, and include water vapor, CO2, methane (CH4), nitrous oxide (N2O), ground level ozone, and fluorinated gases, such as chlorofluorocarbons (CFCs), hydrochlorofluorocarbons (HCFCs), and halons. The potential impacts of climate change include severe weather patterns, flooding, reduced quality and availability of water, sea level rise, and beach erosion. Primary activities associated with GHG emissions include transportation, utilities (e.g., power generation and transport), industry, manufacturing, agriculture, and residential. End-use sector sources of GHG emissions in California are as follows: transportation (41 percent); industry (23 percent); electricity generation (16 percent); agriculture and forestry (8 percent); residential (7 percent); and commercial (5 percent) (CARB 2018). Assembly Bill (AB) 32 is a California State Law that establishes a comprehensive program to reduce GHG emissions from all sources throughout the state. AB 32 requires CARB to develop regulations and market mechanisms to reduce California’s GHG emissions to 1990 levels by 2020, representing a 25 percent reduction statewide, with mandatory caps beginning in 2012 for significant emissions sources. GHG emissions contributing to global climate change are attributable in large part to human activities associated with the industrial/manufacturing, utility, transportation, residential, and agricultural sectors. Therefore, an individual project’s GHG emissions are at a micro-scale level relative to global emissions and effects to global climate change; however, an individual project could result in a cumulatively considerable incremental contribution. As such, impacts related to emissions of GHG are inherently considered cumulative impacts. Estimated GHG emissions attributable to future development in the City of South San Francisco are primarily associated with increases of carbon dioxide (CO2) and, to a lesser extent, other GHG pollutants, such as methane (CH4) and nitrous oxide (N2O) associated with area sources, mobile sources or vehicles, utilities (electricity and natural gas), water usage, wastewater generation, and the generation of solid waste. GHG Emissions Threshold At the regional level, the BAAQMD has proposed the following thresholds of significance for operational-related GHG emissions as of May 2017: x For land use development projects, the threshold is compliance with a qualified GHG Reduction Strategy; or annual emissions less than 1,100 metric tons per year (MT/year) of CO2e; or 4.6 MT CO2e/SP/year (residents + employees). Land use development projects include residential, commercial, industrial, and public land uses and facilities. x For stationary-source projects, the threshold is 10,000 metric tons per year (MT/year) of CO2e. Stationary-source projects include land uses that would accommodate processes and equipment that emit GHG emissions and would require an Air District permit to operate. If annual emissions of operational-related GHGs exceed these levels, the proposed project would result in a cumulatively significant impact. The BAAQMD has not yet adopted a threshold of significance for construction-related GHG emissions. However, Section 8.2 of the BAAQMD CEQA Air Quality Guidelines recommends that the Lead Agency quantify and disclose GHG emissions that would occur during construction and make a determination of the significance of the construction-related GHG impacts in relation to meeting Assembly Bill 32 GHG reduction goals. The Lead Agency is also encouraged to incorporate BMPs to reduce GHG emissions during construction as applicable. BMPs include but are not limited to: using alternative fueled (e.g., biodiesel, electric) construction vehicles/equipment of at least 15 percent of the fleet; using local building materials of at least 10 percent; and recycling or reusing at least 50 percent of construction waste or demolition materials (BAAQMD 2017b). Orange Memorial Park Aquatic Center Project Initial Study/Mitigated Negative Declaration 38 The City of South San Francisco adopted a CAP in 2022 that identifies strategies and actions to reduce GHG emissions. The City has and continues to implement GHG reduction measures associated with both City-owned facilities and private development. These GHG reduction measures include, but are not limited to: the installation of solar facilities at City buildings; adopting and enforcing a construction and demolition waste recycling ordinance; adopting and implementing a TDM program; and providing electrical car charging stations at City facilities. a) Would the project generate greenhouse gas emissions, either directly or indirectly, that may have a significant impact on the environment? Less than Significant. The primary source of proposed Project construction GHG emissions would be from mobile sources such as worker trips and from haul trips during excavation. Neither the City of South San Francisco nor the BAAQMD has adopted a threshold of significance for construction-related GHG emissions. However, the Lead Agency should quantify and disclose GHG emissions that would occur during construction, and make a determination on the significance of these construction-generated GHG emission impacts in relation to meeting AB 32 GHG reduction goals, as required by the Public Resources Code, Section 21082.2. Project operational GHG emissions would be limited to the long-term operation of a new Aquatic Center, including heating, cooling, general lighting and operational uses. The BAAQMD operational, long-term GHG emission thresholds of significance for stationary source projects is more than 10,000 metric tons per year carbon dioxide equivalent units (MTCO2e/year). If a project generates GHG emissions above the threshold level, the project would be considered to generate significant GHG emissions and conflict with applicable GHG regulations. Given that the proposed Project operations would be limited to the electrical operation associated with the new Aquatic Center, annual operation GHG emissions are calculated to be 228 MTCO2e/year, well below the 10,000 MTCO2e/year threshold of significance. Annual short-term construction GHG emissions would be 321 MTCO2e/year and would not significantly contribute to climate change. For these reasons, the proposed project’s GHG emissions impacts would be less than significant. b) Would the project conflict with an applicable plan, policy or regulation adopted for the purpose of reducing the emissions of greenhouse gases? Less than Significant. The BAAQMD 2017 Clean Air Plan outlines the goals and objectives to reduce Bay Area GHG emissions to 40 percent below 1990 levels by 2030 and 80 percent below 1990 levels by 2050, consistent with the GHG reduction targets adopted by the state of California. The 2017 Clean Air Plan includes the following measures to reduce emissions from construction and farming equipment: x Use various strategies to reduce emissions from construction and farming equipment (e.g., incentives for equipment upgrades and/ or encourage the use of renewable electricity and fuels). x Provide incentives for the early deployment of electric, Tier 3 and 4 off-road engines used in construction, freight and farming equipment. x Support field demonstrations of advanced technology for off-road engines and hybrid drive trains. x Work with CARB, the California Energy Commission (CEC), and others to develop more fuel- efficient off-road engines and drive-trains; and x Work with local communities, contractors, farmers, and developers to encourage the use of renewable electricity and renewable fuels, such as biodiesel from local crops and waste fats and oils, in applicable equipment. CARB’s AB 32 Scoping Plan (2008) has several measures to reduce emissions from transportation fuels, which would indirectly reduce emissions from construction equipment. These include the Low Carbon Fuel Standard (LCFS), which would reduce GHG emissions by minimizing the full fuel-cycle carbon Orange Memorial Park Aquatic Center Project Initial Study/Mitigated Negative Declaration 39 intensity of transportation fuels used in California. The 2017 Scoping Plan Update, which builds upon the initial Scoping Plan, contains new strategies and recommendations to reduce GHG to reach the State’s 2030 GHG emissions reduction target (CARB 2017). California’s overall plan for climate adaptation is also summarized in Safeguarding California Plan: 2018 Update. This plan provides policy guidance associated with climate risks in nine sectors in California and provides realistic sector-specific recommendations (CNRA 2018). The various plans, policies, and regulations at the state and local level do not directly require the reduction of GHG emissions from construction equipment; however, emissions would be indirectly reduced through programs like the LCFS. Several rules adopted to reduce emissions of non-GHGs, such as CARB’s In-Use Off-Road Diesel Vehicle Regulation (13 CCR 2449), could also reduce GHG emissions. Since the construction equipment would operate in compliance with all applicable regulations for off-road equipment, the proposed project would not conflict with any plan, policy, or regulation adopted for the purpose of reducing GHG emissions. Proposed mechanical equipment needed for standard building and pool operations, as well as energy efficiency for lighting and heating/cooling, would include energy efficient models. No natural gas is planned for operations. For these reasons, the proposed project would not conflict with an applicable plan, policy or regulation adopted for the purpose of reducing GHG emissions and impacts would be less than significant. IX. Hazards and Hazardous Materials Environmental Issues Potentially Significant Impact Less Than Significant with Mitigation Incorporated Less Than Significant Impact No Impact Would the project: (a) Create a significant hazard to the public or the environment through the routine transport, use, or disposal of hazardous materials? ܆܆܈܆ (b) Create a significant hazard to the public or the environment through reasonably foreseeable upset and accident conditions involving the release of hazardous materials into the environment? ܆܆܈܆ (c) Emit hazardous emissions or handle hazardous or acutely hazardous materials, substances, or waste within one-quarter mile of an existing or proposed school? ܆܆܈܆ (d) Be located on a site which is included on a list of hazardous materials sites compiled pursuant to Government Code Section 65962.5 and, as a result, would it create a significant hazard to the public or the environment? ܆܈܆܆ (e) For a project located within an airport land use plan or, where such a plan has not been adopted, within two miles of a public airport or public use airport, would the project result in a safety hazard or excessive noise for people residing or working in the project area? ܆܆܈܆ (f) Impair implementation of or physically interfere with an adopted emergency response plan or emergency evacuation plan? ܆܆܈܆ (g) Expose people or structures, either directly or indirectly, to a significant risk of loss, injury or death involving wildland fires? ܆܆܆܈ Orange Memorial Park Aquatic Center Project Initial Study/Mitigated Negative Declaration 40 Environmental Evaluation a) Would the project create a significant hazard to the public or the environment through the routine transport, use, or disposal of hazardous materials? Less than Significant. A significant impact may occur if a project would involve the use or disposal of hazardous materials as part of its routine operations or would have the potential to generate toxic or otherwise hazardous emissions that could adversely affect sensitive receptors. Construction of the project would involve the transport, use, and disposal of potentially hazardous materials. These materials include paints, adhesives, surface coatings, cleaning agents, fuels, and oils that are typically associated with development of any construction project. As described in Chapter 1, Project Description, construction activities would be temporary, lasting approximately 18 months. These temporary construction activities involving the use, transport, storage, and disposal of hazardous materials would be conducted in compliance with all health and safety requirements, such as County and City General Plan policies, CCR Sections 337 through 340, Chapter 6.95 of California Health and Safety Code Article 1, and CCR Title 19, Public Safety, Division 2 (if required). Because the City and contractor would comply with applicable regulations and laws pertaining to the transport, storage, use, and disposal of potentially hazardous materials, the exposure of the public, construction workers, and environment to hazardous materials would be less than significant. Operation of the pool would include an automatic system using chlorine products (calcium chloride, calcium hypochlorite, muriatic acid, sodium bicarbonate, sodium hypochlorite, sodium thiosulfate pentahydrate) in liquid form for disinfection in both the indoor and outdoor pools. The indoor pool would also use UV radiation as a secondary process to control the formation of undesirable chlorine byproducts. A computerized system would monitor chlorine levels in both pools to ensure the proper levels of chlorine and increased water quality (City of South San Francisco 2023c). Chemicals would be held in closed tanks with secondary containment, and refillable by container truck. Chlorine storage and delivery systems would meet standard engineering requirements for safety and are considered low hazard. The project site and vicinity include an urban park and urban residential areas. The area historically supported flower nurseries, including the Mantegani site and Mazzanti Carnation, Inc. The Mantegani site, approximately 300 feet north of the project site, was an ornamental flower nursery from 1931 to 1987 specializing in snapdragons and carnations. The site underwent a cleanup for pesticide contaminants (primarily dieldrin and DDT) that was certified as complete as of February 20, 2007 (California Department of Toxic Substances Control [DTSC] 2023b). Mazzanti Carnations, Inc., approximately 800 feet west of the project site, operated greenhouses until the early 1990s. The site underwent a cleanup for pesticide contaminants (insecticides, fumigants, and herbicides) that was certified as complete as of August 26, 2016 (State Water Resources Control Board [SWRCB] 2023b). Soil and water testing was completed by Fugro Consultants, Inc. in 2016 for Orange Memorial Park’s Stormwater Capture Project, approximately 480 feet southwest of the project. Testing revealed relatively low levels of organochlorine pesticides at soil depths of between 2 and 3.5 feet below ground surface. Fugro Consultants, Inc. also identified that arsenic was the only material present in amounts exceeding an Environmental Screening Level (ESL).2 Arsenic was detected at levels between 1.0 milligrams per kilogram (mg/kg) and 3.0 mg/kg, which exceeds the commercial shallow soil exposure ESL of 0.31 mg/kg and the Any Land Use/Any Soil Depth Exposure for a Construction Worker ESL of 0.94 2 ESLs are developed by the San Francisco Bay Regional Water Quality Control Board. They are intended to help identify potential environmental concerns at contaminated sites but are not intended to establish policy or regulation (SWRCB 2020). Orange Memorial Park Aquatic Center Project Initial Study/Mitigated Negative Declaration 41 mg/kg. The amount of arsenic present is common as background levels in Bay Area soils and is not likely to be from greenhouse use. All construction activities would be required to comply with applicable policies, standards, and regulations to ensure there are no hazards related to the routine use, disposal, transport, or accidental release of hazardous materials (California Occupational Safety and Health Administration [OSHA] requirements, Title 8 and 22 of the Code of California Regulations). All excavated fill and native soil material would be disposed in accordance with applicable codes and regulations and the transport and disposal of these materials is not expected to create a significant hazard to construction workers or the nearby community. Therefore, the proposed project would not create a significant hazard to the public or the environment through the routine transport, use, or disposal of hazardous materials and this impact would be less than significant. Implementation of mitigation measures HAZ-1 and HAZ-2 would further reduce this less than significant impact. b) Would the project create a significant hazard to the public or the environment through reasonably foreseeable upset and accident conditions involving the release of hazardous materials into the environment? Less than Significant. A significant impact may occur if a project could create an upset or accident condition involving hazardous materials. The project is not located on a hazardous contamination site, and thus there is no reasonably foreseeable release of hazardous materials from existing hazardous contamination.27F Construction of the project would use small amounts of hazardous materials, such as diesel fuel. The BMPs implemented for the SMCWPPP (discussed further in Section 3.X, Hydrology and Water Quality) would contain minor spills during construction. Operation of the pool complex and use of pool chemicals would not change appreciably because of the project. Therefore, the project would not create a significant hazard to the public or the environment through reasonably foreseeable upset and accident conditions involving the release of hazardous materials into the environment, and the impact would be less than significant. c) Would the project emit hazardous emissions or handle hazardous or acutely hazardous materials, substances, or waste within one-quarter mile of an existing or proposed school? Less than Significant. A project-related significant adverse effect may occur if a project site is within 0.25 mile of an existing or proposed school site, and the project is projected to release hazardous emissions that would exceed regulatory thresholds and would pose a health hazard. The closest school is Los Cerritos Elementary School, located approximately 0.23 mile southwest of the project. Other schools in the vicinity include South San Francisco High School and Parkway Heights Middle School, which are 0.35 mile southwest and 0.36 mile northeast, respectively. In addition to camps, the Ferneke Building is used to host spring and summer camps. Spring Camp occurs one week out of the year. Summer Camps occur nine weeks out of the year (City of South San Francisco Parks and Recreation 2023). As discussed under Sections 3.IX(a) and 3.IX(b) above, the project would comply with applicable regulations and laws pertaining to the transport, storage, use, and disposal of potentially hazardous materials, and would not create a significant hazard to the public or the environment related to hazardous materials. Therefore, the project would not handle hazardous materials in a way that would emit hazardous emissions. Common handling of pool chemicals and small amounts of materials such as cleaning materials is unlikely to impact local schools. Therefore, this impact would be less than significant. Orange Memorial Park Aquatic Center Project Initial Study/Mitigated Negative Declaration 42 d) Would the project be located on a site which is included on a list of hazardous materials sites compiled pursuant to Government Code Section 65962.5 and, as a result, would it create a significant hazard to the public or the environment? Less than Significant with Mitigation. California Government Code Section 65962.5 requires various state agencies to compile lists of hazardous waste disposal facilities, unauthorized release from underground storage tanks, contaminated drinking water wells, and solid waste facilities from which there is known migration of hazardous waste, and to submit such information to the Secretary for Environmental Protection on at least an annual basis. In meeting the provisions in California Government Code Section 65962.5, commonly referred to as the “Cortese List,” database resources such as EnviroStor and GeoTracker provide information regarding identified facilities (DTSC 2023a; SWRCB 2023a). As discussed under Section 3.IX(a), two sites have undergone cleanup for pesticide contamination in the vicinity of the project: the Mantegani site, approximately 300 feet from the project site, at 735 Commercial Avenue; and the Mazzanti Carnation site, approximately 800 feet from the project site, at 781 Tennis Drive. Both sites have undergone cleanup and been certified. In addition, investigations for Orange Memorial Park’s Stormwater Capture Project, approximately 500 feet southwest of the project site, conducted in 2016 identified low levels of organochlorine pesticides in the soil samples collected at depths between 2 and 3.5 feet below ground surface (bgs). For these soil samples, analyses detected concentrations of DDD (at 0.0022 milligrams per kilogram [mg/kg], DDE (up to 0.47 mg/kg), DDT (up to 0.38 mg/kg), and dieldrin (up to 0.17 mg/kg). All these detected concentrations were at or below respective Environmental Screening Levels (ESL) for commercial shallow soil exposure and any soil depth exposures for construction workers (Fugro Consultant, Inc. 2016). Investigations for the Stormwater Capture Project also identified elevated levels of arsenic in the soil that are likely the result of historic chemical use, as well as its presence in local bedrock materials that have been used as import fill (City of South San Francisco 2019). Soil sampling for the Stormwater Capture Project detected the presence of arsenic in all samples at a range of 1.0 to 3.0 mg/kg (Fugro Consultant, Inc. 2016). These concentrations fall within the expected range of naturally occurring arsenic for the area. While this concentration is higher than DTSC/RWQCB ESL, the concentrations do not rise to levels that raise agency concern (e.g., 1,000 or 10,000 times above the ESL). Construction would involve excavation, and grading, and the movement of soils and dust emissions from these activities which could cause a temporary impact to the public or the environment. Short-term soil exposure would potentially affect construction workers due to the potential presence of low levels of organochlorine pesticides and arsenic as detected in the soil samples at the adjacent Water Capture Project. All construction activities would be required to comply with applicable policies, standards, and regulations to ensure there are no hazards related to the routine use, disposal, transport, or accidental release of hazardous materials (California Occupational Safety and Health Administration [OSHA] requirements, Title 8 and 22 of the Code of California Regulations). All excavated fill and native soil material would be disposed in accordance with applicable codes and regulations and the transport and disposal of these materials is not expected to create a significant hazard to construction workers or the nearby community. According to EnviroStor and GeoTracker,. no hazardous contamination sites are located on the project site. The Mantegani site and Mazzanti site both completed cleanups and were certified; therefore, they do not present a danger of contamination. While arsenic levels were above the Commercial Shallow Soil exposure ESL and Any Land Use/Any Soil Depth Exposure for a Construction Worker ESL, throughout California arsenic levels have been found higher than ESLs due to historic chemical usage and from its presence in local bedrock materials, which have been used as import fill (Fugro Consultants, Inc. 2016). Orange Memorial Park Aquatic Center Project Initial Study/Mitigated Negative Declaration 43 The original pool building was constructed and opened in 1970. All buildings built before 1978 are presumed to contain lead paint. The County or its Contractor must develop and implement a demolition debris management and disposal plan for the non-Resource Conservation and Recovery Act hazardous materials that are to be removed from the project site per compliance with County waste diversion requirements in San Mateo County Code of Ordinances, Section 4.105.030 (100 percent of inert solids and at least 50 percent of the remaining construction and demolition debris tonnage). The plan must be designed to prevent releases of hazardous materials in quantities that could pose a risk to human health and the environment, as determined using appropriate BAAQMD, RWQCB, DTSC, and/or other appropriate agency screening thresholds. Compliance with state and federal requirements and implementation of the debris management and disposal plan specified in Mitigation Measure HAZ-1 would ensure the project has a less-than-significant impact on the public or the environment related to disposal of hazardous materials. The impact is less than significant with mitigation incorporated. Mitigation Measure HAZ-1: The County or its Contractor must develop and implement a demolition debris management and disposal plan for the non-Resource Conservation and Recovery Act hazardous materials that are to be removed from the project site per compliance with County waste diversion requirements in San Mateo County Code of Ordinances, Section 4.105.030 (100 percent of inert solids and at least 50 percent of the remaining construction and demolition debris tonnage). The plan must be designed to prevent releases of hazardous materials in quantities that could pose a risk to human health and the environment, as determined using appropriate BAAQMD, RWQCB, DTSC, and/or other appropriate agency screening thresholds. Mitigation Measure HAZ-2: The construction contractor (as required by the contract specifications) shall develop a Hazardous Materials Contingency Plan (HMCP) that includes standard construction measures required by federal, state, and local policies for the handling of potential hazardous materials and removal of on-site debris. The HMCP shall include the implementation of a Waste Management Plan (WMP) for the management of all construction waste, and a Safety Management Plan (SMP) to minimize construction worker’s exposure to dust emissions and emissions that have the potential to contain hazardous concentrations of arsenic. At a minimum, this plan shall include the following: a. Soils on the project site should be tested for arsenic and organochlorine pesticides prior to grading and excavation. b. If contaminated soils or other hazardous materials are encountered during any soil moving operation during construction, the HMCP shall be implemented. c. Instruct workers on recognition and reporting of materials that may be hazardous. d. Minimize delays by continuing performance of the work in areas not affected by hazardous materials operations. e. Identify and contact subcontractors and licensed personnel qualified to undertake storage, removal, transportation, disposal, and other remedial work required by, and in accordance with, laws and regulations. f. Forward to engineer, copies of reports, permits, receipts, and other documentation related to remedial work. g. Notify such agencies as are required to be notified by laws and regulations within the time stipulated by such laws and regulations. Orange Memorial Park Aquatic Center Project Initial Study/Mitigated Negative Declaration 44 h. File requests for adjustments to contract time and contract price due to the finding of hazardous materials in the work site in accordance with conditions of contract. Implementation of a mitigation measures HAZ-1, Demolition Debris Management and Disposal Plan, and HAZ-2, Hazardous Materials Contingency Plan, would reduce potentially significant impacts from exposure to soil contaminants, and elements of building debris such as lead paint to less than significant levels. e) For a project located within an airport land use plan or, where such a plan has not been adopted, within two miles of a public airport or public use airport, would the project result in a safety hazard or excessive noise for people residing or working in the project area? Less than Significant. The project is located approximately 2.1 miles northeast of the San Francisco International Airport (SFO) and is within the jurisdiction of the SFO Airport Land Use Compatibility Plan (ALUCP). The project is located within the boundaries of two subareas of Airport Influence Area B (Figure 6). The 14 Code of Federal Regulation (CFR) Part 77 Subpart C. Conical Surface zone establishes obstruction standards for the airspace around airports including approach zones, conical zones, transitional zones, and horizontal zones known as “imaginary surfaces.” The Federal Aviation Administration (FAA) considers objects penetrating these surfaces as obstructions to navigation and requires marking and lighting them for avoidance. The project site is located in an area that would require clearance measures of structures between 100 and 150 feet above ground surface (City/County Associations of Governments of San Mateo County [C/CAG] 2012). Project structures would have a maximum height of approximately 30 feet above ground surface; therefore, it would not impact the conical surface zone and no impact would occur. The second subarea (Outer Boundary for TERPS approach One Engine Inoperative (OEI) departure surfaces) is a safety zone for airplane approach and departure areas. It also identifies imaginary airspace surfaces (FAA Order 8260.3B, U.S. Standard for Terminal Instrument Procedures [TERPS]) designed to ensure the safe separation of aircraft operating under instrument procedures from man-made and natural obstructions. The critical aeronautical surfaces where the project is located are more than 150 feet above ground level (C/CAG 2012). Project structures would have a maximum height of approximately 30 feet above ground surface; therefore the project would not impact the TERPS imaginary airspace surfaces and this impact would be less than significant. Or a n g e M e m o r i a l P a r k A q u a t i c C e n t e r P r o j e c t In i t i a l S t u d y / M i t i g a t e d N e g a t i v e D e c l a r a t i o n 45 Fi g u r e 6 . S a n F r a n c i s c o I n t e r n a t i o n a l A i r p o r t , A i r p o r t I n f l u e n c e A r e a s . Orange Memorial Park Aquatic Center Project Initial Study/Mitigated Negative Declaration 46 f) Would the project impair implementation of or physically interfere with an adopted emergency response plan or emergency evacuation plan? Less than Significant. A significant impact may occur if a project were to interfere with roadway operations used in conjunction with an emergency response plan or emergency evacuation plan or would generate sufficient traffic to create traffic congestion that would interfere with the execution of such a plan. During short-term construction activities including the associated roadway improvements, partial or complete road closures may be required along both Tennis Drive and W. Orange Avenue to accommodate utility trenching for installation of storm drains, domestic water, and fire water lines, and road improvements and striping. Closures would not impact individual access to other properties. The City’s General Plan does not identify emergency evacuation routes. W. Orange Avenue is identified as an arterial boulevard and Tennis Drive is identified as a collector street. During the construction phase, the City would require an encroachment permit for any temporary activities that would affect the public right-of-way. Encroachment permit conditions would include a traffic control plan with temporary procedures for emergency access. Additionally, in the event of complete or partial lane closures, sufficient alternative routes exist near the facility and the project would not interfere or result in inadequate emergency access. Therefore, the project would not impair the implementation of or physically interfere with an emergency response plan or emergency evacuation plan, and this impact would be less than significant. g) Would the project expose people or structures, either directly or indirectly, to a significant risk of loss, injury or death involving wildland fires? No Impact. A significant impact may occur if a project is located in proximity to wildland areas and would pose a potential fire hazard, which could affect persons or structures in the area in the event of a fire. CalFire maps Fire Hazard Severity Zones (FHSZs) in State Responsibility Areas (SRAs), as well as Very High FHSZs in Local Responsibility Areas (LRAs). The project site is in an LRA and is under the jurisdiction of the South San Francisco Fire Department. There are no Very High FHSZs mapped in South San Francisco (CalFire 2008). San Bruno Mountain, 0.8 mile north of the project site, is in a Moderate FHSZ in an SRA (CalFire 2022). The project site is regularly maintained by City Park and Recreation staff and generally lacks combustible native vegetation. The project would replace an existing public pool and aquatic center with a new pool complex. It would not draw additional people to an area subject to wildland fires. Therefore, no impact would occur. X. Hydrology and Water Quality Environmental Issues Potentially Significant Impact Less Than Significant with Mitigation Incorporated Less Than Significant Impact No Impact Would the project: (a) Violate any water quality standards or waste discharge requirements or otherwise substantially degrade surface or ground water quality? ܆܆܈܆ (b) Substantially decrease groundwater supplies or interfere substantially with groundwater recharge such that the project may impede sustainable groundwater management of the basin? ܆܆܈܆ Orange Memorial Park Aquatic Center Project Initial Study/Mitigated Negative Declaration 47 Environmental Issues Potentially Significant Impact Less Than Significant with Mitigation Incorporated Less Than Significant Impact No Impact (c) Substantially alter the existing drainage pattern of the site or area, including through the alteration of the course of a stream or river or through the addition of impervious surfaces, in a manner which would:  (i) Result in substantial erosion or siltation on- or off-site; ܆ ܆ ܈ ܆ (ii) Substantially increase the rate or amount of surface runoff in a manner which would result in flooding on- or off-site; ܆ ܆ ܈ ܆ (iii) Create or contribute runoff water which would exceed the capacity of existing or planned stormwater drainage systems or provide substantial additional sources of polluted runoff; or ܆ ܆ ܈ ܆ (iv) Impede or redirect flood flows? ܆ ܆ ܈ ܆ (d) In flood hazard, tsunami, or seiche zones, risk release of pollutants due to project inundation? ܆ ܆ ܈ ܆ (e) Conflict with or obstruct implementation of a water quality control plan or sustainable groundwater management plan? ܆ ܆ ܈ ܆ Environmental Evaluation a) Would the project violate any water quality standards or waste discharge requirements or otherwise substantially degrade surface or ground water quality? Less than Significant. Activities associated with construction of the project could have a significant impact if they resulted in violation of waste discharge requirements under the San Francisco Bay RWCQB’s Municipal Regional Stormwater NPDES Permit from contaminated runoff entering the stormwater system. The project site is not adjacent to any water bodies. Colma Creek, approximately 40 feet southwest of the project, is the closest water body. The SMCWPPP is a partnership of C/CAG, each incorporated city and town in the County, and the County, which share a common NPDES permit. The Municipal Regional Stormwater NPDES Permit was issued by the San Francisco Bay RWQCB (San Francisco Bay RWQCB 2022) in compliance with the San Francisco Bay Basin Water Quality Control Plan and the NPDES Program. Participating agencies (including the County and City) must comply with the provisions of the countywide permit by ensuring that new development and redevelopment mitigate, to the maximum extent practicable, water quality impacts from stormwater runoff during both construction and operational periods of projects (County of San Mateo 2023). CONSTRUCTION The proposed project would disturb greater than 1 acre of land and must obtain an individual NPDES General Construction Permit for the stormwater discharges during construction and implement a SWPPP for the site. The SWPPP would include the implementation of erosion and sedimentation BMPs, monitoring, and reporting that would reduce surface and groundwater quality impacts. It must also include a drainage control plan with site-specific BMPs that are designed to prevent runoff from Orange Memorial Park Aquatic Center Project Initial Study/Mitigated Negative Declaration 48 construction areas to reduce potential impacts to surface water quality during project construction. The plan would also include design elements and BMPs for construction areas, such as fueling and equipment washing areas and trash and hazardous material storage areas. No construction would occur during major rain events, minimizing any chance of runoff from the site. Major rain events would be considered as a prediction of 0.25 inch or more in 24 hours. As described in Section 2.5, Construction, construction of the aquatic center would require demolition of the existing pool building, pool, and parking area; clearing and grading activities; filling portions of the project site to elevate them out of the floodplain; construction of the building, pools, and parking area; and trenching for utilities. The project would result in temporary disturbance of approximately 6.5 acres on-site, plus an additional approximately 2 acres for temporary staging, and would permanently develop approximately 6.5 acres. Construction activities associated with the aquatic center would require the presence of construction vehicles, heavy equipment and materials, and construction crews. Construction activity, including demolition, site grading, excavation, and the construction of the aquatic center, would result in temporary soil erosion that could temporarily affect water quality. In addition to stormwater runoff and potential resulting water quality and sedimentation impacts, there is the potential for hazardous materials, including petroleum products associated with diesel vehicle and equipment use and contaminants from paving materials, concrete mixing, pouring and washout, and sanitary facilities, to leave the site. OPERATION Following construction, the project site would be restored and landscaped surrounding the new aquatic center, including stormwater retention and treatment areas, thereby reducing any future water quality impacts. Approximately 1,855 square feet of LID treatment areas would be added on-site. Stormwater would be directed to these areas before discharging to the existing storm drain in W. Orange Avenue. The project would comply with all stormwater requirements of the SWRCB and the County, and would include bioretention basins and treatment areas adequate to treat runoff from the additional impervious surface area, Therefore, water quality impacts associated with the new aquatic center would be less than significant b) Would the project substantially decrease groundwater supplies or interfere substantially with groundwater recharge such that the project may impede sustainable groundwater management of the basin? Less than Significant. California Water Service Company (CalWater) provides water service to the City. CalWater obtains the majority of its water from the San Francisco Water Department and supplies approximately 1,534 acre-feet3 per year (AFY) to the City from local groundwater wells. The project overlays the Westside Groundwater Basin (DWR Basin 2-35). Municipal and agricultural groundwater wells in the Basin range from depths of 130 to 825 feet (Department of Water Resources [DWR] 2006). CalWater operates groundwater wells in the Basin that serve its South San Francisco District (CalWater 2021). The basin is not adjudicated and DWR has determined the Basin is not in a state of critical overdraft and is a low priority for adjudication (CalWater 2021). A potentially significant impact would occur if a project includes deep excavations resulting in the potential to interfere with groundwater movement, the withdrawal of groundwater, or paving of existing permeable surfaces important to groundwater recharge. The project would excavate to a depth of 12 feet, which would not be likely to significantly impact the groundwater table or groundwater movement. In the 3 An acre-foot is a volume of water equal to a sheet of water 1 acre in area and 1 foot thick, or 43,560 cubic feet of water. Orange Memorial Park Aquatic Center Project Initial Study/Mitigated Negative Declaration 49 adjacent Stormwater Capture Project, groundwater was determined to be at a minimum depth of approximately 12 to 13 feet below ground surface (City of South San Francisco 2019). Excavations for the pools and utilities would be limited in scope but may encounter shallow groundwater which would require dewatering during construction. However, dewatering for construction would be short term and temporary, and construction would not include excavation to depths that could affect groundwater movement or well production; therefore, construction of the project would be unlikely to significantly impact groundwater movement and this impact would be less than significant. c) Would the project substantially alter the existing drainage pattern of the site or area, including through the alteration of the course of a stream or river or through the addition of impervious surfaces, in a manner which would: c-i) Result in substantial erosion or siltation on- or off-site? Less than Significant. Planned earthwork and grading activities on the project site would involve a maximum total cut and fill of approximately 10,670 cubic yards – approximately 9,700 cubic yards of cut and 970 cubic yards of fill. The project site is essentially flat, and all project components would be required to implement erosion control measures, as discussed under Section 3.X(a). Construction of the project would include implementation of SWPPP BMPs under the State Water Board General Construction Permit and SMCWPPP. Implementation of the SWPPP would reduce potential erosion and sedimentation from project construction to less-than-significant levels. Operation of the project would result in an increase of impervious surface compared to existing conditions of approximately 17,215 square feet. Therefore, the project would qualify as a C.3 regulated project under the SMCWPPP. Under the C.3 program, the project is required to incorporate controls to reduce pollutant runoff in stormwater. Most controls are required to be LID measures, which include: biotreatment areas, flowthrough planters, rain barrels or cisterns, green roofs, pervious pavement, or other stormwater treatment measures designed to infiltrate or detain stormwater runoff, so that all of the runoff required to be treated per the stormwater permit soaks into the ground, is stored for irrigation or in- building use, evaporates, or is taken up by plants. These requirements apply to most projects that create and/or replace 5,000 square feet or more of impervious surface area (FlowstoBay 2023). The aquatic center and surrounding area would drain to new LID treatment areas on-site, including vegetated stormwater channels. The project will install a new connection to the existing storm drain main on W. Orange Avenue, which ultimately outfalls to Colma Creek; therefore, the project would not substantially alter the existing drainage pattern in a manner that would cause erosion. Compliance with the Municipal Regional Stormwater Permit and Planning Department requirements will reduce drainage and stormwater impacts to a less-than-significant level. Therefore, the project would not substantially alter the existing drainage pattern of the site resulting in substantial erosion or siltation, and the impact would be less than significant. c-ii) Substantially increase the rate or amount of surface runoff in a manner which would result in flooding on- or off-site? Less than Significant. A significant impact may occur if a project results in increased runoff volumes during construction or operation of the project that would result in flooding conditions affecting the project site or nearby properties. As described in Sections 3.X(a) and 3.10(b), the project would result in an increase in impervious surface area of approximately 17,215 square feet and would construct new vegetated stormwater channels which would capture runoff from the additional square footage resulting Orange Memorial Park Aquatic Center Project Initial Study/Mitigated Negative Declaration 50 from a 10-year, 2-hour storm event.4 Compliance with the Municipal Regional Stormwater Permit and Planning Department requirements would reduce drainage and stormwater impacts to a less-than- significant level. Therefore, the project would not substantially alter the existing drainage pattern of the site resulting in a substantial increase in the rate or amount of surface runoff in a manner which would result in flooding on- or off-site, and the impact would be less than significant. c-iii) Create or contribute runoff water which would exceed the capacity of existing or planned stormwater drainage systems or provide substantial additional sources of polluted runoff? Less than Significant. As described in Sections 3.X(a) and 3.X(b), the project would result in an increase in impervious surface area of approximately 17,215 square feet and would construct new vegetated stormwater channels that would have adequate capacity to contain runoff from the additional square footage. The LID treatment areas would discharge to the stormwater system in W. Orange Avenue, which discharges to Colma Creek. Compliance with the Municipal Regional Stormwater Permit and Planning Department requirements would reduce drainage and stormwater impacts to a less-than-significant level. Therefore, the project would not exceed the capacity of the existing and/or planned stormwater drain system or provide substantial additional sources of polluted runoff, and the impact would be less than significant. c-iv) Impede or redirect flood flows? Less than Significant. A significant impact may occur if a project were located in a flood hazard area and would impede or redirect flood flows. According to the FEMA Flood Insurance Rate Map, the project site is in 100-year flood hazard zone AE, with a base flood elevation of approximately 26 feet above mean sea level (amsl). However, one of the objectives of the recently completed Stormwater Capture Project is to alleviate localized flooding in lower reaches of Colma Creek. The water capture facility would divert approximately 5 percent of the water flows from Colma Creek through an inlet structure approximately 870 feet west and upstream of the proposed project. The underground reservoir is capable of holding 7.5 acre-feet (2.44 million gallons) and stored water would be used for irrigation and infiltration with a 0.5-inch-per-hour drawdown rate. Excess water would discharge to Colma Creek via an outfall pipe situated immediately south of the existing basketball courts and approximately 500 feet southwest of the proposed project. The storm water capture project will reduce flows in the creek and reduce overall flood risks down-stream, thereby reducing flood risk on the project site and surrounding neighborhoods The FEMA Flood Insurance Rate Map has not been updated since the Water Capture Project was completed, and the new 100-year flood elevation is calculated to be 23.8 feet amsl. The existing elevation in the vicinity of the existing parking lot is between 25.3 and 25.5 feet amsl, therefore, the project site would be unlikely to be vulnerable to flooding from Colma Creek. The project would be required to raise the floor of the pool building to one foot above flood stage or 24.8 feet amsl. In grading the site, the project would raise the floor of the pool facilities to 26.25 feet amsl, which is above the 100- year floodplain. Therefore, the project would redirect flood flows around the pool building. However, the difference in elevation would be up to approximately one foot compared to existing conditions, therefore, the effect of redirecting flood flows would be minimal and this impact would be less than significant. 4 A 10-year, 2-hour storm means a storm of 2 hours duration that is capable of producing a volume of rainfall expected to be equaled or exceeded on the average of once in 10 years. Orange Memorial Park Aquatic Center Project Initial Study/Mitigated Negative Declaration 51 d) In flood hazard, tsunami, or seiche zones, would the project risk release of pollutants due to project inundation? Less than Significant. The project site is in a FEMA flood hazard zone AE with a base flood elevation of approximately 23.8 feet (Kim-Van Truong 2023). Flood hazard zone AE is defined as an area with a 1 percent annual chance of flooding, and with a calculated base flood elevation (FEMA 2023). Chapter 15.56 of the City’s Municipal Code includes regulations to minimize damage to public facilities and utilities from flood events. Section 15.56.030(b) requires that facilities vulnerable to floods be protected against flood damage at the time of initial construction. Under the municipal code, the floodplain administrator must review all development permits to determine that the site is reasonably safe from flooding; that the proposed development does not adversely affect the carrying capacity of areas where base flood elevations have been determined but a floodway has not been designated; and that documentation of certification for the project meets requirements for construction in a flood zone. Under Section 15.56.160(c)(2), all nonresidential construction in flood zones must be either elevated or floodproofed. The pool facilities will be elevated above the flood hazard zone as part of the grading work; therefore, impacts from flooding would be less than significant. The project site is not located in either a seiche or tsunami zone (City of South San Francisco 2022a). A seiche is a standing wave that oscillates back and forth in an enclosed or partially enclosed body of water. Seiche waves may be caused by earthquakes, and the project is in an area with high seismic activity. Although the project is not in an identified seiche zone, earthquake ground shaking could cause seiche waves in the new pools that could potentially splash out and cause flooding inside the facility. The pools are relatively small and seiche waves within the pools would not be likely be large enough to cause damage. The project would follow the geotechnical recommendations during design and construction to ensure seismic stability. Therefore, impacts from seiche waves would be less than significant. The project is not located in a tsunami zone; therefore, no impact from tsunami waves would occur. e) Would the project conflict with or obstruct implementation of a water quality control plan or sustainable groundwater management plan? Less than Significant. The proposed project will abide by all requirements of the San Mateo Countywide Water Pollution Prevention Program and the Municipal Regional Permit issued by the San Francisco Bay RWQCB. The project would not conflict with the Water Quality Control Plan for the San Francisco Bay Basin because it would comply with all applicable requirements of the MRP. The project site is not located in a groundwater basin and would not directly use groundwater; therefore, it would not conflict with or obstruct the implementation of a sustainable groundwater management plan. Impacts would be less than significant. Orange Memorial Park Aquatic Center Project Initial Study/Mitigated Negative Declaration 52 XI. Land Use and Planning Environmental Issues Potentially Significant Impact Less Than Significant with Mitigation Incorporated Less Than Significant Impact No Impact Would the project: (a) Physically divide an established community? ܆܆܆܈ (b) Cause a significant environmental impact due to a conflict with any land use plan, policy, or regulation adopted for the purpose of avoiding or mitigating an environmental effect? ܆܆܆܈ Environmental Evaluation a) Would the project physically divide an established community? No Impact. The project site is located in Orange Memorial Park, which is an urban City park. The site is zoned as Parks and Recreation (PR) under the City’s General Plan and zoning code. Surrounding land uses are predominantly Parks and Recreation, Low Density Residential (RL), Medium Density Residential (RM) Downtown Residential – Low (DRL), Downtown Residential – Medium (DRM), and High Density Residential (RH) (City of South San Francisco 2023f). The project would replace an existing aquatic center and parking lot with a new aquatic center and parking lot in an existing City park. Therefore, the project would not change the nature of land uses or physically divide an established community. No impact would occur. b) Would the project cause a significant environmental impact due to a conflict with any land use plan, policy, or regulation adopted for the purpose of avoiding or mitigating an environmental effect? No Impact. The project would not conflict with any land use plan, policy, or regulation. The project fulfills the City’s 2040 General Plan Policy PR-7.6, which seeks to modernize the aquatics facilities at Orange Memorial Park and expand the pools in order to enable the expansion of aquatics programming. The project also includes EV charging stations (Policy PR-7.11) and integrates sustainable landscape strategies (Policy PR-7.8) including planting 36 trees, using low-water landscaping, and using green infrastructure for stormwater capture. The project is located in the Airport Influence Area of San Francisco International Airport, in the 14 CFR Part 77 Subpart C. Conical Surface zone and the Outer Boundary for TERPS approach OEI departure surfaces. As discussed in Section 3.IX(e), both areas define the safe height of structures in the zones. In both cases, the safe height is more than 150 feet above ground surface. The new aquatic center would be approximately 30 feet in height; therefore, the project would be well below the imaginary airspace surfaces and no impact would occur. Therefore, the project would not conflict with any plans, policies, or regulations and no impact would occur. Orange Memorial Park Aquatic Center Project Initial Study/Mitigated Negative Declaration 53 XII. Mineral Resources Environmental Issues Potentially Significant Impact Less Than Significant with Mitigation Incorporated Less Than Significant Impact No Impact Would the project: (a) Result in the loss of availability of a known mineral resource that would be of value to the region and the residents of the state? ܆܆܆܈ (b) Result in the loss of availability of a locally- important mineral resource recovery site delineated on a local general plan, specific plan or other land use plan? ܆܆܆܈ Environmental Evaluation a) Would the project result in the loss of availability of a known mineral resource that would be of value to the region and the residents of the state? No Impact. A significant impact may occur if a project site is located in an area used or available for extraction of a regionally important mineral resource, if a project would convert an existing or future regionally important mineral extraction use to another use, or if a project would affect access to a site used or potentially available for regionally important mineral resource extraction. The project is not located in a mineral resource zone identified by the state (Stinson et al. 1982). Therefore, no impacts to mineral resources of statewide or regional significance would occur. b) Would the project result in the loss of availability of a locally- important mineral resource recovery site delineated on a local general plan, specific plan or other land use plan? No Impact. A significant impact would occur if a project were located in an area used or available for extraction of a locally important mineral resource and the project converted an existing or potential future locally important mineral extraction use to another use, or if a project affected access to a site in use or potentially available for locally important mineral resource extraction. The project is located in a City park in the middle of an urban area. Neither the project site nor the surrounding area is identified as an area containing mineral deposits of local significance in the City’s 2040 General Plan. Therefore, no impacts to mineral resources of local significance would occur. Orange Memorial Park Aquatic Center Project Initial Study/Mitigated Negative Declaration 54 XIII. Noise Environmental Issues Potentially Significant Impact Less Than Significant with Mitigation Incorporated Less Than Significant Impact No Impact Would the project result in: (a) Generation of a substantial temporary or permanent increase in ambient noise levels in the vicinity of the project in excess of standards established in the local general plan or noise ordinance, or applicable standards of other agencies? ܆܈܆܆ (b) Generation of excessive groundborne vibration or groundborne noise levels? ܆܆܈܆ (c) For a project located within the vicinity of a private airstrip or an airport land use plan or, where such a plan has not been adopted, within two miles of a public airport or public use airport, would the project expose people residing or working in the project area to excessive noise levels? ܆܆܈܆ Environmental Evaluation Municipal Code Chapter 8.32 sets regulations for exterior noise levels (Section 8.32.030). Maximum permissible sound levels in Table 3 are the standards for a cumulative period of 30 minutes in any hour. The maximum allowable noise level is determined by the land use category of the nearest sensitive receptor properties. The Noise Ordinance limits noise levels in single-family or multiple-family residential areas to 60 decibels (dBA) between the hours of 7 a.m. and 10 p.m. Section 8.32.030(a) states it is unlawful for any person to operate any source of sound at any location within the City, which causes the noise level when measured on any other property to exceed: 1. The noise level standard for the specified land use for a cumulative period of more than 30 minutes in any hour; 2. The noise level standard plus 5 dB for a cumulative period of more than 15 minutes in any hour; 3. The noise level standard plus 10 dB for a cumulative period of more than 5 minutes in any hour; 4. The noise level standard plus 15 dB for a cumulative period of more than 1 minute in any hour; or 5. The noise level standard or the maximum measured ambient level, plus 20 dB for any period of time. Table 3. Noise Level Standards Land Use Category Time Period Noise Level (dB) Single-family or duplex residential 10 p.m. to 7 a.m. 50 7 a.m. to 10 p.m. 60 Multiple-family residential or mixed residential/commercial 10 p.m. to 7 a.m. 55 7 a.m. to 10 p.m. 60 Commercial districts 10 p.m. to 7 a.m. 60 7 a.m. to 10 p.m. 65 Orange Memorial Park Aquatic Center Project Initial Study/Mitigated Negative Declaration 55 Land Use Category Time Period Noise Level (dB) Parks districts 10 p.m. to 7 a.m. 70 7 a.m. to 10 p.m. 70 dB = decibels Source: South San Francisco Municipal Code Section 8.32.030 (2023) Municipal Code Section 8.32.040 regulates interior noise limits for multifamily residential property. Section 8.32.050(d) indicates that a noise level more than 10 dB above the level allowed by Section 8.32.030 measured 3 feet from any wall, floor, or ceiling inside any unit on the same property when the windows and doors of the unit are closed is unallowable. The City’s Municipal Code Section 8.32.050 allows construction activities that are authorized by a valid City permit between the hours of 8:00 a.m. and 8:00 p.m. on weekdays, between 9:00 a.m. and 8:00 p.m. on Saturdays, and between 10:00 a.m. and 6:00 p.m. on Sundays and holidays. Other hours may be authorized by the construction permit if the project meets one of the following criteria: (1) No individual piece of equipment shall produce a noise level exceeding 90 dB at a distance of 25 feet. If the device is housed within a structure or trailer on the property, the measurement shall be made outside the structure at a distance as close to twenty-five feet from the equipment as possible; or (2) The noise level at any point outside of the property plane of the project shall not exceed 90 dB (Municipal Code Section 8.32.050). According to Municipal Code Section 8.32.060, Exception Permits, if the applicant can show to the City Manager, or the Manager’s designee, that a diligent investigation of available noise abatement techniques indicates that immediate compliance with the requirements of this chapter would be impracticable or unreasonable, a permit to allow exception from the provisions contained in this chapter may be issued, with appropriate conditions to minimize the public determinant caused by such exceptions. Any such permit shall be of as short a duration as possible, but in no case for longer than 6 months. These permits are renewable upon a showing of good cause, and shall be conditioned by a schedule for compliance and details of compliance methods in appropriate cases. a) Would the project result in generation of a substantial temporary or permanent increase in ambient noise levels in the vicinity of the project in excess of standards established in the local general plan or noise ordinance, or applicable standards of other agencies? Less than Significant with Mitigation. The project would result in a significant impact if it would: 1. Allow construction to occur outside of hours specified in the permit, 2. Produce construction noise in excess of 90 dB at a distance of 25 feet or exceed 90 dB at any point outside the property plane of the project, or 3. Produce operational noise in excess of 60 dB at neighboring residential properties. Residences, schools, hotels, child care facilities, and convalescent facilities are typically considered noise sensitive land uses. The nearest potential residential receptors to the project site are single-family homes and duplexes located approximately 70 feet north on Tennis Drive, 80 feet north on Circle Court, 100 feet east on Amberwood Circle, and 140 feet northeast on Railroad Avenue. In addition, recreational users of the children’s playground facility immediately west, users of the Fernekes Building approximately 150 Orange Memorial Park Aquatic Center Project Initial Study/Mitigated Negative Declaration 56 feet southwest (including spring and summer camps), and playing fields south of the project would be subjected to construction noise. The maximum ambient sound levels within residential land use areas are assumed to be less than 65 dBA (City of South San Francisco 2010). Primary noise sources within the vicinity of the project site include vehicle traffic from El Camino Real and local street traffic from W. Orange Avenue, Tennis Drive, North Canal Street, Circle Court, Railroad Avenue, surrounding roadways, and outdoor recreational uses. Secondary noise sources include aircraft overflights from SFO, distant train noise from approximately Caltrain (0.9 mile to the east), and distant traffic noise from U.S. Highway 101 (approximately 1 mile to the east). Project construction would include use of standard construction equipment, including excavators, graders, tractors, loaders, pavers, jackhammers, hoe rams, and cement trucks (Table 4). No pile driving is proposed. Noise from project construction would come from two general sources. Vehicles carrying the construction crew commuting to the site, as well as truck transport of construction equipment and materials to the site, would incrementally increase noise levels on roads leading to the site. In addition, use of heavy construction equipment and hand tools during construction would incrementally increase noise levels on the site. Worker commute and truck trips would result in intermittent noise increases on local roads but would not affect long-term ambient noise levels. The second type of short‐term noise impact is related to noise generated during demolition, excavation, grading, and construction on the project site. Construction is performed in discrete steps, or phases, each with its own mix of equipment and, consequently, its own noise characteristics. These various sequential phases would change the character of the noise generated on-site. Therefore, the noise levels vary as construction progresses. Despite the variety in the type and size of construction equipment, similarities in the dominant noise sources and patterns of operation allow construction‐related noise ranges to be categorized by work phase. Louder types of construction equipment include graders, scrapers, and auger drill rigs as well as concrete saws, concrete grinders and hoe rams (see Table 4). The loudest phase of construction would likely be the demolition of the existing pool facility, followed by the excavation and grading phases. Table 4. Typical Construction Equipment Noise Levels Construction Equipment Noise Level (dB Lmax1 at 50 feet) Air compressor 78 Backhoe 78 Chain saw 84 Compactor 84 Concrete grinder 90 Concrete mixer truck 79 Concrete saw 90 Crane 81 Dozer 82 Dump truck 76 Flat bed truck 74 Front end loader 79 Generator 81 Grader 85 Orange Memorial Park Aquatic Center Project Initial Study/Mitigated Negative Declaration 57 Construction Equipment Noise Level (dB Lmax1 at 50 feet) Hoe ram 90 Jackhammer 89 Paver 77 Roller 80 Scraper 84 Lmax is the instantaneous maximum noise level for a specified period of time. Source: Federal Highway Administration (2006) For the proposed project, the combined loudest pieces of equipment , during demolition and grading could reach 90 dBA outside the property plane of the construction activity (U.S. Department of Transportation [USDOT]/Federal Highway Administration 2006), which is the noise limit defined in the City code . These higher noise levels could be generated during (1) the use of concrete saws and hoe ram during demolition of the old pool facility, and (2) the use of earth-moving equipment and excavation activities and grading. If a valid City permit is obtained, construction activities would comply with the South San Francisco Noise Regulations, as long as no individual piece of equipment produces noise levels that exceed the construction noise limit of 90 dB at the property line. Since the project would replace an existing pool complex, operational noise would not vary significantly from the existing conditions. With implementation of the following Mitigation Measure NOI-1, the project would result in less than significant impacts related to generation of a substantial temporary or permanent increase in ambient noise levels that are in excess of standards established in the local general plan or noise ordinance, or applicable standards of other agencies: Mitigation Measure NOI-1: The following measures shall be implemented to reduce construction noise impacts: a. Secure a valid City permit for construction noise levels that could potentially temporarily exceed 90 dB at the park’s property line in order to comply with the South San Francisco Noise Regulations. b. Construction equipment and haul trucks shall use the best available noise control techniques, including improved mufflers, use of intake silencers, ducts, engine enclosures and acoustically attenuating barriers, curtains, and shields. c. Site stationary noise sources, such as air compressors and generators, as far from adjacent sensitive receptors as possible. These sources shall be muffled and enclosed within temporary sheds or incorporate insulation barriers, shields, or other attenuating measures. d. If impact equipment and machinery are used such as jack hammers, pavement breakers, and rock drills, they shall be hydraulically or electrically powered to avoid noise associated with air compressors or pneumatically powered tools. If the use of pneumatically powered tools is necessary, an exhaust muffler shall be installed on the air compressor. Such a muffler can lower noise levels from the exhaust by up to 10 dBA. Similarly, the installation of external jackets on the tools can reduce noise levels by 5 dBA. Orange Memorial Park Aquatic Center Project Initial Study/Mitigated Negative Declaration 58 e. Material stockpiles and mobile equipment, staging, and parking areas shall be located as far as possible from noise sensitive receptors (i.e. adjacent tot lot and summer camps in the Ferneke Building. f. Identify a liaison that represents the property owners located adjacent to the project site along Tennis Drive. This liaison shall be contacted with concerns regarding construction noise. The liaison’s contact information shall be clearly displayed at the construction location on posted signs informing the public of the construction hours and the liaison to contact in the event of a noise-related problem. g. Notify all adjacent landowners and occupants of the properties adjacent to the project site of the anticipated construction schedule at least 2 weeks prior to ground-disturbing activities. h. Hold a pre-construction meeting with the Contractor Superintendent, General Contractor, and City inspectors to confirm that all noise mitigation measures (including signage on construction hours, valid City exception permit, and liaison contact information) are completed. b) Would the project result in generation of excessive groundborne vibration or groundborne noise levels? Less than Significant. Groundborne vibration is the perceptible movement of building floors, rattling windows, and doors, shaking of items on shelves or walls, and rumbling sounds. For groundborne vibration, according to the Federal Transit Administration (FTA) guidelines, a vibration level of 65 vibration decibels (VdB) is the threshold of perceptibility for humans.5 For a significant impact to occur, vibration levels must exceed 80 VdB during infrequent events (USDOT/FTA 2018). Construction activities (e.g., ground-disturbing activities, including movement of heavy construction equipment and hauling of demolition debris and soil from the project site) may generate localized groundborne vibration and noise. Blasting or pile-driving activities would not occur during construction of the project. A hoe ram, jackhammers and concrete saws would be used during demolition of the existing parking lot and pool building. A vibratory roller would be used for parking lot construction. Generally, construction- related groundborne vibration is not expected to extend beyond 25 feet from the generating source. Construction equipment for demolition of the existing parking lot and pool building which could include jackhammers, concrete saws, and a compactor machine (vibratory pad or drum roller). The closest sensitive receptors are residences approximately 75 feet from the northern edge of the project area. The activities closest to the adjacent residences include the movement of haul trucks. Hauling of soils and debris could generate vibrations along local haul routes. Assuming the use of 12-cubic-yard dump trucks, the project is anticipated to require a total of approximately 875 round-trip trucks trips to offhaul soil and demolition debris over the 18-month construction period. The maximum haul trips per day would likely be 8 one-way trips per day during the parking lot demolition and building demolition phases. The movement of up to 8 haul trucks per day would not generate significant amounts of groundborne vibration, therefore this impact would be less than significant. c) For a project located within the vicinity of a private airstrip or an airport land use plan or, where such a plan has not been adopted, within two miles of a public airport or public use airport, would the project expose people residing or working in the project area to excessive noise levels? Less than Significant. The nearest airport to the project site is SFO, located approximately 2.1 miles to the southeast. According to the City’s General Plan EIR, aircraft noise from SFO is the primary source of 5 VdB is the vibration velocity level expressed in decibels relative to 1 micro-inch per second (1 × 10-6 inch per second). Orange Memorial Park Aquatic Center Project Initial Study/Mitigated Negative Declaration 59 transportation noise in the City. The project site is located within the SFO ALUCP Airport Influence Area B (Figure 6), which is based on a combination of the outer boundaries of the noise compatibility and airport safety zones (C/CAG 2012). However, the project site is located outside the aircraft noise exposure contour (CNEL Contour; see Figure 6). Therefore, because the project is outside the airport noise exposure contour and would not introduce residents or employees to the area, it would not expose people residing or working in the area to excessive noise levels associated with the nearby airport and noise impacts would be less than significant. d) Population and Housing Environmental Issues Potentially Significant Impact Less Than Significant with Mitigation Incorporated Less Than Significant Impact No Impact Would the project: (a) Induce substantial unplanned population growth in an area, either directly (for example, by proposing new homes and businesses) or indirectly (for example, through extension of roads or other infrastructure)? ܆܆܆܈ (b) Displace substantial numbers of existing people or housing, necessitating the construction of replacement housing elsewhere? ܆܆܆܈ Environmental Evaluation a) Would the project induce substantial unplanned population growth in an area, either directly (for example, by proposing new homes and businesses) or indirectly (for example, through extension of roads or other infrastructure)? No Impact. City and county General Plans develop growth plans and projections for the areas in their jurisdictions. A significant impact would occur if a project included a General Plan amendment that could result in an increase in population over that projected in the adopted General Plan, or if a project would induce substantial growth on the project site or surrounding area. Construction job opportunities created as a result of the project are not expected to result in any substantial population growth in the area. The work requirements of most construction projects are highly specialized so that construction workers remain at a job site only for the time frame during which their specific skills are needed. Additionally, the construction workers would likely be supplied from the region’s labor pool. Construction workers would not be likely to relocate their household as a consequence of working on the project, and as such, significant housing or population impacts would not result from construction of the project. Therefore, there would be no construction-related population growth impacts and no impact would occur. The project would replace an existing aquatics center and parking lot and reconfigure existing soccer fields; therefore, while the aquatics center will be able to offer additional programs, the project is not likely to attract more people to Orange Memorial Park and the surrounding area or cause people to move to the area. Therefore, the project would not introduce new persons to the population, and no impact would occur. Orange Memorial Park Aquatic Center Project Initial Study/Mitigated Negative Declaration 60 b) Would the project displace substantial numbers of existing people or housing, necessitating the construction of replacement housing elsewhere? No Impact. The project would replace an existing aquatics center and parking lot and reconfigure existing soccer fields. Therefore, the project would not displace people or housing, and no impact would occur. XIV. Public Services Environmental Issues Potentially Significant Impact Less Than Significant with Mitigation Incorporated Less Than Significant Impact No Impact Would the project: (a) Result in substantial adverse physical impacts associated with the provision of new or physically altered governmental facilities, need for new or physically altered governmental facilities, the construction of which could cause significant environmental impacts, in order to maintain acceptable service ratios, response times or other performance objectives for any of the public services:  Fire protection? ܆܆ ܆ ܈ Police protection? ܆܆܆܈ Schools? ܆܆܆܈ Parks? ܆܆܈܆ Other public facilities? ܆܆܆܈ Environmental Evaluation a) Would the project result in substantial adverse physical impacts associated with the provision of new or physically altered governmental facilities, need for new or physically altered governmental facilities, the construction of which could cause significant environmental impacts, in order to maintain acceptable service ratios, response times or other performance objectives for any of the public services: Fire protection? No Impact. The project would replace an existing aquatics center and parking lot and reconfigure existing soccer fields; therefore, it would not increase the population in the area or introduce a hazard. A significant impact may occur if the South San Francisco Fire Department (SSFFD) could not adequately serve a project, and a new or physically altered fire station would be necessary. The project area receives fire protection services from the SSFFD. The SSFFD has three fire stations. The project site is in the response area for Fire Station 61, which is located at 480 North Canal Street, approximately 0.5 mile southeast of the project site. In addition, Fire Station 63 is located at 33 Arroyo Drive, approximately 0.57 mile west of the project site (City of South San Francisco 2023h). The project would not increase population or cause a marked increase in recreational users, and no impact to fire protection services would occur. Orange Memorial Park Aquatic Center Project Initial Study/Mitigated Negative Declaration 61 Police protection? No Impact. A significant impact may occur if the South San Francisco Police Department (Police Department) could not adequately serve a project, and a new or physically altered police station would be necessary. The project area receives law enforcement services from the Patrol Division of the Police Department. The Patrol Division consists of 40 officers and four patrol beats covering 11 square miles of the City. The Police Station located at 1 Chestnut Avenue is located approximately 0.4 mile west of the project site (City of South San Francisco 2023i). The project would replace an existing aquatic center and parking lot and reconfigure existing soccer fields; therefore, it would not increase the population in the area or introduce a hazard. The project would not cause an appreciable increase in recreational users. Therefore, the project would not increase the demand for public services, including police protection, and no impacts to police protection would occur. Schools? No impact. The project area is served by the South San Francisco Unified School District (SSFUSD). A significant impact may occur if the SSFUSD could not adequately serve a project, and a new or physically altered school or schools would be necessary. The SSFUSD has nine elementary schools, three middle schools, three high schools, and an adult education program. Between 2011 and 2021, the enrollment declined by 1,306 students. Enrollment projections between 2021 and 2030 show an expected decrease in student population from 8,006 students to 6,759 students; a decrease of 1,247 or approximately 15.6 percent (South San Francisco Unified School District 2022). The project would replace an existing aquatic center and parking lot and reconfigure existing soccer fields; therefore, it would not increase the population in the area or cause a marked increase in recreational users. The project would not increase the demand for public services, including schools, and no impact would occur. Parks? Less than Significant. A significant impact may occur if the project would result in the need for new or improved parks. The Orange Pool is the only indoor municipal swimming pool in the City. The pool operates year-round and 7 days a week. The existing pool was constructed in 1970, and prior to the pandemic, public demand for aquatic programs has grown year over year, well beyond the pool’s capacity. The pool has exceeded the typical lifespan for such facilities and is due for replacement (City of South San Francisco 2023c). The new facility would include two pools—an outdoor, 25-yard, cool water lap pool and an indoor, warm water, teaching/recreation pool—and would enable the City to expand offerings of recreation activities in the aquatic center. The existing pool would remain in use until the new pool is completed and would then be demolished. While the project would remove a portion of the existing soccer field area, reducing the total area of grass field area, by about 7,200 square feet, the remaining grass field would be retained and continued to be designed for recreation use, including soccer practices and games. The project would also temporarily fence the entire soccer field area for use as a staging area during construction. The field would be returned to existing conditions after project completion. Therefore, the proposed project would improve access and opportunities at the aquatic center, continue to provide grass fields for recreation, and would not create a need for new or improved parks. This impact would be less than significant. Orange Memorial Park Aquatic Center Project Initial Study/Mitigated Negative Declaration 62 Other public facilities? No impact. A significant impact may occur if the project would result in the need for other new or improved public facilities. Other public facilities include the Community Civic Campus, which includes a new Police Operations and 911 Dispatch Center, South San Francisco Main Library, Community Theater/Council Chamber, and Parks and Recreation facilities. The project would replace an existing aquatics center at Orange Memorial Park and reconfigure existing soccer fields. It would not increase the population in the area or cause an increase in recreational users. Therefore, the project would not increase the demand for public services, including libraries, theater, or other uses, and no impact would occur. XV. Recreation Environmental Issues Potentially Significant Impact Less Than Significant with Mitigation Incorporated Less Than Significant Impact No Impact (a) Would the project increase the use of existing neighborhood and regional parks or other recreational facilities such that substantial physical deterioration of the facility would occur or be accelerated? ܆ ܆ ܈ ܆ (b) Does the project include recreational facilities or require the construction or expansion of recreational facilities which might have an adverse physical effect on the environment? ܆ ܆ ܈ ܆ Environmental Evaluation a) Would the project increase the use of existing neighborhood and regional parks or other recreational facilities such that substantial physical deterioration of the facility would occur or be accelerated? Less than Significant. A project would result in a significant impact to parks and recreation services if it would result in a significant increase in population from adding residential units. The project would replace an existing aquatic center and reconfigure existing soccer fields. It would not increase the population in the area or cause an increase in recreational users. It would allow an expansion of services at the aquatic center and allow the facility to serve more residents. As noted in Section X, while the project would permanently remove a portion of the existing soccer field area, reducing the total area of grass field by about 7,200 square feet, the remaining grass field would be retained and continued to be designed for recreation use, including soccer practices and games. Post- project, the area would be reduced from three to two soccer fields and the two remaining fields would be improved. During the 18-month construction period, the entire field area would be fenced off and used for construction staging, so all three soccer fields would be unavailable. The existing Orange Aquatic facility was deemed insufficient for the needs of the City’s residents. The project would more than double the available space for aquatic programs, allowing increased use for recreation, classes, and programs. Therefore, although the project would, increase the use of existing park facilities, it would not result in substantial physical deterioration and this impact would be less than significant. Orange Memorial Park Aquatic Center Project Initial Study/Mitigated Negative Declaration 63 b) Does the project include recreational facilities or require the construction or expansion of recreational facilities which might have an adverse physical effect on the environment? Less than Significant. The project would replace and improve existing aquatic center facilities; therefore, it would not increase the population in the area but would allow for an increase in recreational users. Although the project would expand an existing recreational facility, it would not have a significant, adverse physical effect on the environment. As discussed in Sections 3.IV, Biological Resources, 3.V, Cultural Resources, 3.VII, Geology and Soils, and 3.XVII, Tribal Cultural Resources, all potentially significant impacts would be reduced to a less-than-significant level by mitigation incorporated into the project. The project would allow the City to expand recreation at the new aquatic facility, but this would not change the operational impacts of the existing pool, and this impact would be less than significant. XVI. Transportation Environmental Issues Potentially Significant Impact Less Than Significant with Mitigation Incorporated Less Than Significant Impact No Impact Would the project: (a) Conflict with a program plan, ordinance or policy addressing the circulation system, including transit, roadway, bicycle and pedestrian facilities? ܆ ܆ ܈ ܆ (b) Would the project conflict or be inconsistent with CEQA Guidelines section 15064.3, subdivision (b)? ܆ ܆ ܈ ܆ (c) Substantially increase hazards due to a geometric design feature (e.g., sharp curves or dangerous intersections) or incompatible uses (e.g., farm equipment)? ܆ ܆ ܆ ܈ (d) Result in inadequate emergency access? ܆ ܆ ܈ ܆ Environmental Evaluation REGIONAL AND LOCAL ACCESS Regional access is provided by Highways 101 and 280, El Camino Real, Westborough Boulevard/Chestnut Avenue, and Grand Avenue. Local access is provided by W. Orange Avenue and Tennis Drive. PUBLIC TRANSIT The project site is served by San Mateo County Transit District (SamTrans) Bus Route 37, which has a stop at the corner of W. Orange Avenue and Tennis Drive. The bus route offers connections to Daly City, San Bruno, Alta Loma School, and Daly City Bay Area Rapid Transit (BART) via Route 130. In addition, the Free South City Shuttle stops at the corner of W. Orange Avenue and Tennis Drive. The Free South City Shuttle provides a circular route within the City connecting schools, parks, the Municipal Services Building, downtown area, Kaiser Hospital, and senior centers, and provide connecting transportation to SamTrans stops and the SSF BART station (City of South San Francisco 2023j). Caltrain and Bay Area Rapid Transit (BART) stations are both located approximately 1 mile east of the project. Orange Memorial Park Aquatic Center Project Initial Study/Mitigated Negative Declaration 64 PEDESTRIAN/BICYCLE TRANSIT Centennial Way is a 2.85-mile-long Class 1 bicycle/pedestrian trail that will eventually run from the City of Colma to the City of Millbrae. The trail crosses W. Orange Avenue approximately 0.25 mile south of the project, and connects to San Bruno BART Station, Tanforan Shopping Center, South San Francisco High School, El Camino High School, and South San Francisco BART station (City of South San Francisco 2023b). The project would include the installation of one indoor and eight outdoor bicycle racks. The project would include ADA-approved sidewalks and paved walkways accessing the aquatic complex. It would also improve the existing crosswalk on Tennis Drive by adding traffic calming measures for pedestrian safety (see Figure 3). ADA/EV PARKING There is an existing parking lot on the north side of Tennis Drive accessible by a crosswalk across Tennis Drive. The project includes a new parking and drop-off area with six ADA parking stalls, two EV charging stalls, and five regular parking stalls (see Figure 3). a) Would the project conflict with a program plan, ordinance or policy addressing the circulation system, including transit, roadway, bicycle and pedestrian facilities? Less than Significant. The City’s General Plan Mobility Element includes policies and actions designed to incorporate complete streets improvements into all roadway and development projects, incorporate bicycle and pedestrian improvements into capital projects, address ADA accessibility, expand the low- stress bike and pedestrian network, and expand bicycle parking at major activity centers. The project would include a new parking lot with ADA and EV parking. It would be adjacent to a SamTrans bus stop, providing access to public transit. It would be 0.25 mile from the Centennial Way bicycle and pedestrian path, with access via W. Orange Avenue. The project would include a total of nine bicycle racks. Project construction would result in vehicle worker trips, haul trips, and vendor trips. The cut and fill could generate a total of about 875 haul trips over the construction period – 808 haul trips during construction of the new aquatic center, and 67 trips during the demolition of the existing pool building. The increase in traffic as a result of worker and haul trips would increase traffic at nearby traffic intersections and roadway segments. The project would obtain encroachment permits which would include a Traffic Control Plan. In addition, haul and vendor trips would primarily occur during off-peak hours (9:00 a.m. to 3:00 p.m.). The project is on a transit line and would include improvements for bicycle and pedestrian facilities, ADA parking, and traffic calming measures; therefore, the project would not conflict with a program plan, ordinance, or policy addressing the circulation system, including transit, roadway, bicycle and pedestrian facilities, and this impact would be less than significant. b) Would the project conflict or be inconsistent with CEQA Guidelines section 15064.3, subdivision (b)? Less than Significant. The new 2019 State CEQA Guidelines require analysis of impacts related to Vehicle Miles Traveled (VMT) as a result of a project. VMT is the amount and distance of automobile traffic attributable to a project. The City’s General Plan includes goals to reduce VMT and GHG emissions. This analysis is based on a Vehicle Miles Traveled (VMT) and Trip Generation Assessment provided by Kittleson & Associates (July 17, 2023) (Table 5). The analysis is based on trip generation from the number of lap lanes in the existing pool (six lanes) versus the new pools (17 lanes). Orange Memorial Park Aquatic Center Project Initial Study/Mitigated Negative Declaration 65 Table 5. Trip Generation Pedestrian Group Counts1 (Existing) Pedestrian Group Counts1 to Proposed Site (Projected) Net New Project Trips Pool Size 6 Lap Lanes 17 Lap Lanes Group Counts Weekday Daily Trips 238 674 436 Saturday Daily Trips 538 1,524 986 Weekday AM Peak Hour Trips 35 100 65 Weekday PM Peak Hour Trips 67 190 123 Saturday Peak Hour Trips 99 281 182 1 Pedestrian Groups are the number of groups of people entering the pool facility. The assumption for the VMT analysis is that the demand for swimming is likely already present but residents are using other pools further away, due to limited capacity at the existing pool. An expanded Orange Pool facility will provide additional classes and opportunities for recreational swimmers closer to the City to better meet the demand from South San Francisco residents. Vehicle trip generation is anticipated to increase since both the pool size and number of lap lanes will increase by more than double with the new pool compared to the old pool. The increase in vehicle trip generation is conservatively estimated at 65 trips in the weekday AM peak hour, 123 trips in the weekday PM peak hour, and 182 on a Saturday peak hour. Overall, total daily vehicle trip generation is projected to increase by about 436 on weekdays and 986 on weekends. The development of the project will reduce the overall contribution of pool trips to regional VMT because residents of South San Francisco will be able to use their local pool which has fewer capacity constraints to meet their swimming needs rather than traveling farther away to pools in other communities like the Brisbane Community Pool or the Jean E. Brink Swimming Pool in Pacifica. This reduces the overall trip length for South San Francisco residents, which will reduce regional VMT. Regional VMT with the project is estimated to decrease because an expanded Orange Pool will provide additional capacity to better meet the needs of residents of South San Francisco who will be able to drive to a more local pool rather than one farther away, reducing trip length and VMT. Therefore, the project would not be inconsistent with CEQA Guidelines regarding VMT, and this impact would be less than significant. c) Would the project substantially increase hazards due to a geometric design feature (e.g., sharp curves or dangerous intersections) or incompatible uses (e.g., farm equipment)? No Impact. The project does not include any design features that would increase hazards. The project would replace an existing aquatic center and parking area in a public park. The new parking area would provide additional spaces for ADA parking close to the pool complex. The project would also traffic calming measures for the crosswalk that crosses Tennis Drive. Therefore, no impact would occur. d) Would the project result in inadequate emergency access? Less than Significant. A significant impact may occur if a project were to interfere with roadway operations used for emergency access or evacuation or would generate sufficient traffic to create traffic congestion that would interfere with the emergency access. Orange Memorial Park Aquatic Center Project Initial Study/Mitigated Negative Declaration 66 During short-term construction activities including the associated roadway improvements, partial or complete road closures may be required along both Tennis Drive and W. Orange Avenue to accommodate utility trenching for installation of storm drains, domestic water, and fire water lines. Closures would not impact individual access to other properties. The City’s General Plan does not identify emergency evacuation routes. W. Orange Avenue is identified as an arterial boulevard and Tennis Drive is identified as a collector street (City of South San Francisco 2022a). During the construction phase, the City would require an encroachment permit for any temporary activities that would affect the public right-of-way. Encroachment permit conditions would include a traffic control plan with temporary procedures for emergency access. Additionally, in the event of partial lane closures, sufficient alternative routes exist near the facility and the project would not interfere or result in inadequate emergency access. Therefore, the project would not result in inadequate emergency service, and this impact would be less than significant. XVII. Tribal Cultural Resources Environmental Issues Potentially Significant Impact Less Than Significant with Mitigation Incorporated Less Than Significant Impact No Impact (a) Would the project cause a substantial adverse change in the significance of a tribal cultural resource, defined in Public Resources Code section 21074 as either a site, feature, place, cultural landscape that is geographically defined in terms of the size and scope of the landscape, sacred place, or object with cultural value to a California Native American tribe, and that is:  (i) Listed or eligible for listing in the California Register of Historical Resources, or in a local register of historical resources as defined in Public Resources Code section 5020.1(k), or ܆܈܆܆ (ii) A resource determined by the lead agency, in its discretion and supported by substantial evidence, to be significant pursuant to criteria set forth in subdivision (c) of Public Resources Code Section 5024.1. In applying the criteria set forth in subdivision (c) of Public Resource Code Section 5024.1, the lead agency shall consider the significance of the resource to a California Native American tribe. ܆܈܆܆ Environmental Evaluation At the time of the initial European contact with the Native Americans of the San Francisco Bay area, Costanoans (from the Spanish costaños, or “coast people”), members of the Penutian linguistic family, inhabited the area from the Carquinez Strait and the northern tip of the San Francisco Peninsula to the region south of Monterey Bay and east to the Diablo Range. These Native Americans called themselves Ohlone, entered the Bay Area approximately 1,500 years ago. They came from the Delta region and displaced earlier Hokan speakers. An estimated 7,000 to 10,000 Native Americans lived near San Francisco Bay by the time of European contact in the 18th century. According to the City’s General Plan EIR and consistent with the City’s historic as an Ohlone settlement location, there are Native American village sites and archaeological sites scattered around the City of South San Francisco. Known resources Orange Memorial Park Aquatic Center Project Initial Study/Mitigated Negative Declaration 67 occur along the El Camino Real corridor, in the San Bruno Mountains, and adjacent to portions of Colma Creek. AB 52 establishes a formal consultation process for California tribes in the CEQA process, requiring the lead agency to initiate consultation with California Native American groups when a decision to undertake a project or determination that a project is complete (e.g., prior to the release of a negative declaration, mitigated negative declaration, or environmental impact report), lead agencies are required to notify tribes who previously requested placement on the notification list. On June 23, 2023, the City provided formal notification in writing to eight separate Native American groups. After 30 days, none of the tribes requested AB52 consultation. During the preparation of the Cultural Resources Technical Report, a search of the California Native American Heritage Commission (NAHC) Sacred Lands File (SLF) was requested on April 26, 2023, with the intent of identifying culturally sensitive areas and obtaining a list of Native American contacts who may have specific knowledge of the vicinity. The NAHC response was received on May 18, 2023, and provided a negative result (there were no identified Sacred Lands onsite) and a list of eight Native American tribes and individuals who may have knowledge of cultural resources in the project area. SWCA sent outreach letters via email to all Native American contacts on May 30, 2023, with hard copies followed by regular mail on June 2, 2023. Follow-up telephone calls were made by SWCA on June 2 and June 8, 2023. Chairperson Irene Zwierlein of the Amah Mutsun Band of Mission San Juan Bautista requested that all persons be aware that railroads were historically built on Native burial grounds. Chairperson Ann Marie Sayers of the Indian Canyon Mutsun Band of Costanoan requested the CHRIS results, final report, and the evolution and development of the project area, which was provided by SWCA in an email to Chairperson Sayers. Kanyon Sayers Roods responded via email that the project area overlaps or is near the management boundary of a potentially eligible cultural site and that she would like to consult on the project. Thereafter, Kanyon Sayers Roods was reached by phone by the City on September 6, 2023. In that conversation a request was made by Kanyon Sayers Roods for worker awareness training covering tribal cultural resources, and that a Native American monitor from a local tribe be present following the event of the inadvertent discovery of a prehistoric archaeological resource to monitor the treatment of that resource. These requests are reflected in Mitigation Measure TCR – 1, below. The remainder of the telephone calls went unanswered. It was concluded that the project area intersects a portion of an archaeological site, a historic-era segment of rail line that once connected the two northern branches of the Southern Pacific Railroad; the rail line ran from San Francisco to Los Angeles. The segment of the rail line intersecting the project area is located in the northeast portion of the project area adjacent to Tennis Drive. This segment was recorded on July 19, 2000 by Mike Avina, who documented the site as a historic-era railroad segment consisting of fifty feet of Southern Pacific’s railroad system within the city of South San Francisco and recommended the resource as not eligible for the National Register of Historic Places (NRHP) or the or the California Register of Historic Resources (CRHR) due to a lack of historic integrity resulting from modern development. During the current survey for the Orange Memorial Park Aquatic Center project, it was noted that this segment had been completely removed. Orange Memorial Park Aquatic Center Project Initial Study/Mitigated Negative Declaration 68 a) Would the project cause a substantial adverse change in the significance of a tribal cultural resource, defined in Public Resources Code section 21074 as either a site, feature, place, cultural landscape that is geographically defined in terms of the size and scope of the landscape, sacred place, or object with cultural value to a California Native American tribe, and that is: a-i) Listed or eligible for listing in the California Register of Historical Resources, or in a local register of historical resources as defined in Public Resources Code section 5020.1(k)? Less than Significant with Mitigation. The proposed project would not cause substantial adverse change in the significance of a tribal cultural resource that is listed or eligible for listing in the California Register of Historical Resources (CRHR) or in another local register. According to the NAHC’s Sacred Lands File while project site vicinity was once was documented as a historic-era railroad segment consisting of fifty feet of Southern Pacific’s railroad system within the city of South San Francisco, was determined ineligible for the National Register of Historic Places (NRHP) or the or the CRHR due to a lack of historic integrity resulting from modern development. This segment was subsequently completely removed. There are no other Native American tribal heritage sites recorded within the proposed project site or vicinity. After notification for formal consultation, the City received one request for consultation from the Indian Canyon Band Mutsun Band of Costanoan Indians. Given the negative results of the NAHC Sacred Lands File Search and the Orange Memorial Park Aquatic Center Cultural Resources report (June 2023), and the existing disturbed environment of the Project site, it was concluded that the proposed Project would have a less- than-significant impact on tribal cultural resources with implementation of Mitigation Measure TCR-1, which would be implemented in the event that unanticipated prehistoric cultural resources (or TCRs) are exposed during project construction. Mitigation Measure TCR-1: The following measures shall be implemented prior to project implementation and in the event that unanticipated prehistoric cultural resources or TCRs are exposed during project construction: a. All construction staff must receive worker environment awareness training (WEAP) that identifies the identification and proper treatment of tribal cultural resources. In the event that unanticipated prehistoric cultural resources are exposed during disturbance activities, work within 15 meters (50 feet) of the find (Find Site) must stop and the California Native American Heritage Commission must be contacted to identify a local Native American tribal member to provide monitoring inspection of any further construction work at the Find Site. Work may not resume at the Find Site until a tribal member is present to provide monitoring inspection. a-ii) A resource determined by the lead agency, in its discretion and supported by substantial evidence, to be significant pursuant to criteria set forth in subdivision (c) of Public Resources Code Section 5024.1. In applying the criteria set forth in subdivision (c) of Public Resource Code Section 5024.1, the lead agency shall consider the significance of the resource to a California Native American tribe. Less than Significant with Mitigation. The City of South San Francisco has considered the significance of potential tribal cultural resources on the project site and vicinity to Native American Tribes. Based on the reasons that results of the NAHC Sacred Lands Files Search were negative and with implementation Orange Memorial Park Aquatic Center Project Initial Study/Mitigated Negative Declaration 69 of Mitigation Measure TCR-1, as summarized above, impacts on tribal resources would be less than significant with mitigation. XVIII. Utilities and Service Systems Environmental Issues Potentially Significant Impact Less Than Significant with Mitigation Incorporated Less Than Significant Impact No Impact Would the project: (a) Require or result in the relocation or construction of new or expanded water, wastewater treatment or storm water drainage, electric power, natural gas, or telecommunications facilities, the construction or relocation of which could cause significant environmental effects? ܆܆܈܆ (b) Have sufficient water supplies available to serve the project and reasonably foreseeable future development during normal, dry and multiple dry years? ܆܆܈܆ (c) Result in a determination by the wastewater treatment provider which serves or may serve the project that it has adequate capacity to serve the project’s projected demand in addition to the provider’s existing commitments? ܆܆܈܆ (d) Generate solid waste in excess of State or local standards, or in excess of the capacity of local infrastructure, or otherwise impair the attainment of solid waste reduction goals? ܆܆܈܆ (e) Comply with federal, state, and local management and reduction statutes and regulations related to solid waste? ܆܆܈܆ Environmental Evaluation a) Would the project require or result in the relocation or construction of new or expanded water, wastewater treatment or storm water drainage, electric power, natural gas, or telecommunications facilities, the construction or relocation of which could cause significant environmental effects? WATER Less than Significant. Water for project construction and operation is supplied by the California Water Service, South San Francisco Division (CalWater), and the majority of their supply (80 percent) is purchased from San Francisco Regional Water System (SF RWS). The remaining water is drawn from local groundwater wells. CalWater serves 63,702 people in an 11.2-square-mile area, which has an average demand of 5.88 million gallons per day (mgd) (BAWSCA 2023). CalWater has an Individual Supply Guarantee of 35.68 mgd, or approximately 39,993 acre-feet per year, which is shared among its Bear Gulch, Mid-Peninsula, and South San Francisco Districts, from the San Francisco Public Utilities Commission (SFPUC). In addition to the water from the SFPUC, CalWater obtains a maximum of approximately 1.37 mgd or 1,534 acre-feet per year, from local sources in the Westside Groundwater Basin during a non-drought year. The Westside Groundwater Basin is categorized by the DWR as a very low priority basin and is actively managed to prevent significant overdraft (CalWater 2021). Between Orange Memorial Park Aquatic Center Project Initial Study/Mitigated Negative Declaration 70 2016 and 2020, CalWater supplied an average of 6,837 acre-feet per year of potable water (CalWater 2021). Construction activities would require a minimal amount of water for dust control and cement mixing. Water would be delivered to the project site by water truck. Since the project would replace one existing pool with two new pools, water use at the aquatic center would approximately double and the total volume of both pools would be approximately 450,425 gallons or 1.38 acre-feet, less than 0.02 percent of an average year water demand. Project operation would use water for backwashing the pool filters. The filters are backwashed approximately once every 2 weeks and use approximately 9,290 gallons of water with each event. Tanks are backwashed one at a time. Each tank would use approximately 241,540 gallons or 0.74 AF in a year, which is approximately 0.01 percent Therefore, the project would not result in the relocation or construction of new or expanded water treatment facilities, and this impact would be less than significant. WASTEWATER Less than Significant. Wastewater treatment is provided by South San Francisco/San Bruno Water Quality Control Plant (SSWQCP), which is located along Colma Creek near San Francisco Bay. It receives an average dry weather flow of approximately 9 mgd and has capacity to treat up to 13 mgd in average dry weather flow. Peak wet weather flows can exceed 60 mgd (City of South San Francisco 2023k). The plant last experienced flows that exceeded maximum peak wet weather capacity on December 31, 2022 (City of South San Francisco 2023l). Construction of the project would produce minimal wastewater from construction crew use of portable toilets. The project would add new restroom and shower facilities as well as two pools in the new aquatic center, and demolish pool, restroom, and shower facilities associated with the existing pool building. Since the new aquatic center includes two pools and additional restroom and shower facilities, it is likely to serve more residents and therefore create more wastewater from restroom and shower use. Filters would be backwashed approximately once every 2 weeks, creating approximately 9,290 gallons of wastewater each time, which is approximately 0.1 percent of the dry weather flow capacity. Therefore, the additional volume of wastewater produced from the pool facility would be minimal. Operation of the project would produce a minimal permanent change in wastewater production, and the project would not result in the relocation or construction of new wastewater treatment facilities, therefore this impact would be less than significant. STORMWATER Less than Significant. The project would include a total of approximately 17,215 square feet of new impervious surface area, which would drain to new LID stormwater treatment and retention facilities on- site. Overflow would drain to the existing storm drain in W. Orange Avenue and eventually to Colma Creek. The project would include drainage improvements that meet the requirements of the SMCWPPP to prevent sediment-laden runoff to Colma Creek. Therefore, project operation would not create a need for new stormwater facilities, and this impact would be less than significant. The Applicant would be required to implement a SWPPP under the Municipal Regional Stormwater NPDES Permit6 and the SMCWPPP during project construction (San Francisco Bay RWQCB 2022). The SWPPP must include site-specific BMPs that are designed to prevent runoff from construction areas to 6 San Francisco Regional Water Quality Control Board (RWQCB). 2015. Municipal Regional Stormwater NPDES Permit. Order No. R2-2015-0049. NPDES Permit No. CAS612008. Available at: https://www.cleanwaterprogram.org/images/uploads/R2- 2015-0049.pdf. Accessed October 21, 2021. Orange Memorial Park Aquatic Center Project Initial Study/Mitigated Negative Declaration 71 reduce potential impacts to surface water quality during project construction. The plan would also include design elements and BMPs for construction areas, such as fueling and equipment washing areas, and trash and hazardous material storage areas. Therefore, impacts related to stormwater runoff during construction would be less than significant. GAS AND ELECTRICITY Less than Significant. Electric power services are provided by Peninsula Clean Energy (PCE) and Pacific Gas and Electric (PG&E). The City automatically enrolled all residents and businesses in PCE in 2016 in an effort to reduce GHG emissions and combat global warming, and offers the option to remain using PG&E as an energy provider. PCE purchases electricity directly from renewable energy sources, and PG&E delivers the electricity to homes and businesses using its existing transmission and distribution lines (City of South San Francisco 2023f). PG&E additionally provides the City’s natural gas. The project would have new electrical demands associated with the new and enlarged aquatic center. The project would be all-electric and would include rooftop solar panels to help supply electricity. The project would result in either a small increase or a net decrease in existing electricity use because of the solar panels; therefore, this impact would be less than significant. The project would be all electric and would remove existing gas infrastructure; therefore, no impact related to natural gas use would occur. TELECOMMUNICATIONS Less than Significant. The project would replace the existing aquatic center and extend new telecommunications infrastructure to the facility; however, it would not appreciably change existing telecommunications use. Therefore, no impact related to telecommunications infrastructure would occur. The existing park facilities are served by all public utilities. The new aquatic center would replace the existing pool and would tie into the same water, sewer, and storm drain lines through new laterals. The project would be all electric and would not include the use of natural gas. The project would also include solar panels to supply electricity. The project would tie into existing electrical and telecommunications facilities. The project would not require the construction or relocation of new or expanded water, wastewater, storm drain, electric power, or telecommunications facilities. This impact would be less than significant. b) Would the project have sufficient water supplies available to serve the project and reasonably foreseeable future development during normal, dry and multiple dry years? Less than Significant. The aquatic center is served by CalWater, South San Francisco District. As discussed above, 80 percent of CalWater’s supply for their South San Francisco District is purchased from the San Francisco Regional Water System and originates in the Hetch Hetchy Reservoir, and the remaining 20 percent is drawn from local groundwater wells. In 2019, the SWRCB adopted amendments to the Bay Delta Water Quality Control Plan that increased flows in the Tuolumne River in order to protect Bay-Delta water quality (SWRCB 2019). As a result, the SFPUC, which oversees the San Francisco Regional Water System, needs to find additional water to meet projected demand, particularly in drought years. The SFPUC is currently working on a Voluntary Settlement Agreement with the state, as well as pursuing an Alternative Supply Program with a number of alternative sources of supply, both within San Francisco and in partnership with other agencies, that could provide additional water to meet current and future obligations. In the meantime, supply and demand projections are based on the currently adopted amendment (SFPUC 2023). Orange Memorial Park Aquatic Center Project Initial Study/Mitigated Negative Declaration 72 As required by the DWR, CalWater has analyzed the long-term reliability and vulnerability of its water supplies and developed a combination of supply alternatives and conservation planning efforts to meet the water supply needs of its customers in the South San Francisco District. CalWater has developed water supply estimates for normal year, single dry year, and multiple dry year scenarios based on the existing Bay Delta Water Quality Control Plan. Table 6 shows the projected water balance for a normal dry year through 2045. Table 7 shows the water balance for the first 5 years of a multiple dry year sequence under the 2020 Urban Water Management Plan (CalWater 2021). As shown in Table 6, CalWater has adequate water supplies to meet a normal year demand. Table 6. Water Supply and Demand Estimates for Normal Water Years In Acre Feet (DWR Table 7- 2) Drought Year Supply/Demand Totals* 2025 2030 2035 2040 2045 First Year Supply Totals 7,543 7,483 7,635 8,000 8,423 Demand Totals2 7,543 7,483 7,635 8,000 8,423 Difference 0 0 0 0 0 * All numbers are in million gallons per year. Source: CalWater (2021), Table 7-3. Normal Year Supply and Demand Comparison (DWR Table 7-2). As shown in Table 7, CalWater’s multiple dry year supplies are not adequate to meet projected multiple dry year demands. Significant supply shortfalls, ranging from 29 to 38 percent in the first year of the 5- year dry period to 36 to 45 percent in the fifth year of the 5-year dry period, are projected. The water supply projections presented above likely represent a worst-case scenario in which the Bay-Delta Plan Amendment is implemented without the SFPUC and the SWRCB reaching a Voluntary Agreement and does not account for implementation of SFPUC’s Alternative Water Supply Program. Table 7. CalWater Water Supply and Demand Estimates for Multiple Dry Years (DWR Table 7-4) Drought Year Supply/Demand Totals* 2025 2030 2035 2040 2045 First Year Supply Totals 5,678 5,636 5,739 5,917 5,534 Demand Totals 8,009 7,943 8,104 8,429 8,940 Difference -2,331 -2,307 -2,365 -2,574 -3,406 Second Year Supply Totals 5,095 5,059 5,082 5,291 5,534 Demand Totals 8,009 7,943 8,104 8,429 8,940 Difference -2,914 -2,884 -3,022 -3,138 -3,406 Third Year Supply Totals 5,095 5,059 5,082 5,291 5,534 Demand Totals 8,009 7,943 8,104 8,429 8,940 Difference -2,914 -2,884 -3,022 -3,138 -3,406 Fourth Year Supply Totals 5,095 5,059 5,082 4,874 4,941 Demand Totals 8,009 7,943 8,104 8,429 8,940 Difference -2,914 -2,884 -3,022 -3,555 -3,999 Fifth Year Supply Totals 5,095 5,059 5,082 4,874 4,941 Demand Totals 8,009 7,943 8,104 8,429 8,940 Difference -2,914 -2,884 -3,022 -3,555 -3,999 * All numbers are in acre-feet per year. Source: CalWater (2021), Table 7-5. Multiple Dry Year Supply and Demand Comparison (DWR Table 7-4). Orange Memorial Park Aquatic Center Project Initial Study/Mitigated Negative Declaration 73 The new pool complex with two pools will approximately double the existing water use. The outdoor pool would have a capacity of approximately 277,161 gallons and the indoor pool capacity would be approximately 173,264 gallons (see Design Plans, pp. 161 and 167, Appendix A). The total capacity would be 450,425 gallons or 1.38 acre-feet. This is less than 0.02 percent of total water demand in an average year. Project operation would use water for backwashing the pool filters. The filters are backwashed approximately once every 2 weeks and use approximately 9,290 gallons of water with each event. Tanks are backwashed one at a time. Each tank would use approximately 241,540 gallons or 0.74 AF in a year, which is less than 0.001 percent of the average demand and supply of a normal water year (Table 6). Therefore, the new pool complex would represent a minor increase in water demand and this impact would be less than significant. c) Would the project result in a determination by the wastewater treatment provider which serves or may serve the project that it has adequate capacity to serve the project’s projected demand in addition to the provider’s existing commitments? Less than Significant. As discussed under Section 3.XVIII(a), SSWQCP receives average dry weather flow of approximately 9 mgd and has a wastewater treatment plant capacity of up to 13 mgd in average dry weather flow (City of South San Francisco 2023l). The project would result in an increase in existing pool, restroom, and shower uses at the Orange Pool Aquatic Center that would result in a relatively minor increase in wastewater production. However, the project would not result in an increase in residences or employment that would bring more people to the area, and wastewater production increases related to pool use would be small; therefore, impacts related to increased wastewater production would be less than significant. d) Would the project generate solid waste in excess of State or local standards, or in excess of the capacity of local infrastructure, or otherwise impair the attainment of solid waste reduction goals? Less than Significant. Solid waste pickup is provided to the project area and City by South San Francisco Scavenger Company, which provides pickup of residential and commercial garbage, recyclable material, organic waste, and food waste, and diverts construction and demolition debris, wood waste, plastics, commercial food waste and other materials for recycling (South San Francisco Scavenger Company 2023a). Scavenger also operates a state-of-the-art transfer station and materials recovery facility (South San Francisco Scavenger Company 2023b) as well as an anaerobic digestor facility that processes organic waste to compressed renewable natural gas for use in the company’s collection trucks (South San Francisco Scavenger Company 2018). Solid waste is transported to the Corinda Los Trancos Ox Mountain Sanitary Landfill for recycling, composting, and disposal (Everything South City 2021). The landfill is permitted to receive 3,598 tons of waste per day and has an anticipated closure date of 2034 (CalRecycle 2017).7 In the second quarter of 2019, the landfill received an average of 160,253 tons of solid waste (approximately 1,780 tons per day, or 49 percent of its permitted throughput). The project would be required to adhere to the City’s Municipal Code Section 15.60.030, Diversion Requirements, which requires contractors to divert construction and demolition debris in a manner that complies with the California Green Building Standards Code. In particular, the project must submit and follow a Waste Management Plan that includes the following: 7 Asphalt or concrete construction debris is approximately 2,400 pounds per cubic yard. Dry earth construction debris is approximately 2,100 pounds per cubic yard. Reference: California Department of Resources Recycling and Recovery (CalRecycle). 2018. Solid Waste Cleanup Program Weights and Volumes for Project Estimates. Available at: https://www.calrecycle.ca.gov/swfacilities/cdi/tools/calculations. Accessed October 21, 2021. Orange Memorial Park Aquatic Center Project Initial Study/Mitigated Negative Declaration 74 x Deconstruct and salvage all or part of the structure, as practicable; x Direct 100 percent of inert solids to reuse and recycling facilities; and x Either: o Take all mixed construction and demolition debris to mixed construction and demolition debris recycling facilities approved by the City and take all sorted or crushed construction and demolition debris to approved facilities, or o Source separate noninert materials such as cardboard and paper, wood, metals, green waste, new gypsum wallboard, tile, porcelain fixtures, and other easily recycled materials, and direct them to recycling facilities approved by the City and take the remainder to a facility for disposal. In this option, calculations must be provided to show that the minimum amount of debris as specified by Section 4.408 of Chapter 4 of CALGreen has been diverted. (Ord. 1532 § 1, 2017) The landfill has a remaining capacity of approximately 45 million cubic yards and is expected to operate until 2034 (CalRecycle 2023). The project would divert construction and demolition debris as required, and the landfill would have adequate capacity to receive the remainder during the construction phase of the project because the construction phase of the project would be temporary and would generate a limited amount of solid waste. Development of the required Waste Management Plan would ensure this impact is less than significant. Operation of the project would not change appreciably from operation of the existing aquatic center; therefore, the project would not generate waste in excess of state or local standards or in excess of the capacity of local infrastructure, or otherwise impair the attainment of solid waste reduction goals. Therefore, this impact would be less than significant. e) Would the project comply with federal, state, and local management and reduction statutes and regulations related to solid waste? Less than Significant. The project would adhere to all federal, state, and local management and reduction statutes and regulations related to solid waste. The Applicant would require the contractor to adhere to the City’s Waste Management Plan for disposal of construction debris, including recycling at least 75 percent of clean asphalt and concrete. During operation, the new aquatic center would install recycling and composting waste containers to promote waste diversion from landfills, and water bottle refill stations to promote reusable water bottles. Therefore, the project would meet all City requirements for recycling during operation, and this impact would be less than significant. XIX. Wildfire Environmental Issues Potentially Significant Impact Less Than Significant with Mitigation Incorporated Less Than Significant Impact No Impact If located in or near state responsibility areas or lands classified as very high fire hazard severity zones, would the proje ct: (a) Substantially impair an adopted emergency response plan or emergency evacuation plan? ܆܆܆܈ (b) Due to slope, prevailing winds, and other factors, exacerbate wildfire risks, and thereby expose project occupants to, pollutant concentrations from a wildfire or the uncontrolled spread of a wildfire? ܆܆܆܈ Orange Memorial Park Aquatic Center Project Initial Study/Mitigated Negative Declaration 75 Environmental Issues Potentially Significant Impact Less Than Significant with Mitigation Incorporated Less Than Significant Impact No Impact (c) Require the installation or maintenance of associated infrastructure (such as roads, fuel breaks, emergency water sources, power lines or other utilities) that may exacerbate fire risk or that may result in temporary or ongoing impacts to the environment? ܆܆܆܈ (d) Expose people or structures to significant risks, including downslope or downstream flooding or landslides, as a result of runoff, post-fire slope instability, or drainage changes? ܆܆܆܈ Environmental Evaluation a) If located in or near state responsibility areas or lands classified as very high fire hazard severity zones, would the project substantially impair an adopted emergency response plan or emergency evacuation plan? No Impact. A significant impact may occur if a project is located in proximity to wildland areas and would pose a potential fire hazard, or affect an adopted emergency response plan or emergency evacuation plan in the event of a fire. CalFire maps Fire Hazard Severity Zones (FHSZs) in State Responsibility Areas (SRAs), as well as Very High FHSZs in Local Responsibility Areas (LRAs). The project site is in an LRA and is under the jurisdiction of the South San Francisco Fire Department. There are no Very High FHSZs mapped in South San Francisco (CalFire 2008). San Bruno Mountain, 0.8 mile north of the project site, is in a Moderate FHSZ in an SRA (CalFire 2022). The project would replace an existing public pool and aquatic center with a new pool complex. It would not draw additional people to an area subject to wildland fires. Therefore, no impact would occur and the project would not result in any impact an emergency response or evacuation plan. Project construction would include street and/or lane closures on W. Orange Avenue and Tennis Drive. However, the project would obtain an encroachment permit for road or lane closures and would abide by all City policies including development of a Traffic Control Plan. Therefore, the project would not interfere with an adopted emergency response or evacuation response plan and no impact would occur. b) Due to slope, prevailing winds, and other factors, if located in or near state responsibility areas or lands classified as very high fire hazard severity zones, would the project exacerbate wildfire risks, and thereby expose project occupants to, pollutant concentrations from a wildfire or the uncontrolled spread of a wildfire? No Impact. The project is not located in or near SRAs or lands classified as Very High FHSZs. The project would replace an existing aquatic center in a public park and would not include elements that would exacerbate wildfire risks. No impact would occur. Orange Memorial Park Aquatic Center Project Initial Study/Mitigated Negative Declaration 76 c) If located in or near state responsibility areas or lands classified as very high fire hazard severity zones, would the project require the installation or maintenance of associated infrastructure (such as roads, fuel breaks, emergency water sources, power lines or other utilities) that may exacerbate fire risk or that may result in temporary or ongoing impacts to the environment? No Impact. The project is not located in or near SRAs or lands classified as Very High FHSZs. The project would replace an existing aquatic center in a public park and would not extend facilities that would exacerbate wildfire risks. No impact would occur. d) If located in or near state responsibility areas or lands classified as very high fire hazard severity zones, would the project expose people or structures to significant risks, including downslope or downstream flooding or landslides, as a result of runoff, post-fire slope instability, or drainage changes? No Impact. The project is not located in or near SRAs or lands classified as Very High FHSZs. The project would replace an existing aquatic center in a public park and would not expose people or structures to significant post-fire risks. No impact would occur. XX. Mandatory Findings of Significance Environmental Issues Potentially Significant Impact Less Than Significant with Mitigation Incorporated Less Than Significant Impact No Impact (a) Does the project have the potential to substantially degrade the quality of the environment, substantially reduce the habitat of a fish or wildlife species, cause a fish or wildlife population to drop below self-sustaining levels, threaten to eliminate a plant or animal community, substantially reduce the number or restrict the range of a rare or endangered plant or animal or eliminate important examples of the major periods of California history or prehistory? ܆܈܆܆ (b) Does the project have impacts that are individually limited, but cumulatively considerable? (“Cumulatively considerable” means that the incremental effects of a project are considerable when viewed in connection with the effects of past projects, the effects of other current projects, and the effects of probable future projects)? ܆܈܆܆ (c) Does the project have environmental effects which will cause substantial adverse effects on human beings, either directly or indirectly? ܆܈܆܆ Orange Memorial Park Aquatic Center Project Initial Study/Mitigated Negative Declaration 77 Environmental Evaluation a) Does the project have the potential to substantially degrade the quality of the environment, substantially reduce the habitat of a fish or wildlife species, cause a fish or wildlife population to drop below self-sustaining levels, threaten to eliminate a plant or animal community, substantially reduce the number or restrict the range of a rare or endangered plant or animal or eliminate important examples of the major periods of California history or prehistory? Less than Significant with Mitigation. The project would replace an existing aquatic center and parking lot and reconfigure existing soccer fields within Orange Memorial Park. The City of South San Francisco is located within the South Bay of San Mateo County and is highly urbanized. Accordingly, the potential for candidate, sensitive, or special status species or habitats is low within the City limits. As described in Section IV, Biological Resources, Section V, Cultural Resources, and the preceding analyses, no significant unmitigable impacts to the environment would result. The implementation of MM BIO-1, MM-BIO-2, MM CUL-1, MM-CUL-2, MM-GEO-1, MM-NO-1, MM-HAZ-1, MM-HAZ-2 and MM TCR-1 would minimize impacts to nesting birds, and undiscovered cultural, archeological and paleontological resources, geology and soils impacts related to ground failure , construction noise, hazards and hazardous materials related to soil contaminants (arsenic) and building materials (lead paint), and tribal cultural resources to less-than-significant levels. The project does not include significant fish or wildlife habitat or known cultural resources. Based on these findings, the City of South San Francisco hereby finds that impacts related to degradation of the environment, biological resources, and cultural resources would be less than significant with the incorporation of mitigation measures. b) Does the project have impacts that are individually limited, but cumulatively considerable? (“Cumulatively considerable” means that the incremental effects of a project are considerable when viewed in connection with the effects of past projects, the effects of other current projects, and the effects of probable future projects)? Less than Significant with Mitigation. Cumulative environmental impacts are multiple individual impacts that, when considered together would be considerable, or compound other environmental impacts. Individual impacts would potentially result from a single project or multiple separate projects that would potentially occur at the same place and point in time or at different locations and over extended periods of time. The proposed project would not result in individually limited or contribute to cumulatively considerable significant impacts. As discussed in Sections I through XX, all short-term environmental issues would result in either no impacts, less than significant impacts, or less than significant impacts with the incorporation of mitigation with the implementation of the project. Construction of the proposed project could result in some short-term temporary impacts such air quality impacts from dust and engine exhaust, , impacts to nesting birds and, previously undiscovered cultural and paleontological resources, impacts related to seismic-related ground failure, construction noise, hazards related to soil contaminants (arsenic) and building materials (lead paint) and tribal cultural resources, but those would be temporary and/or less than significant with the implementation of mitigation measures. In summary, the Project’s contribution to potential cumulative impacts related to these other issues would be less than cumulatively considerable. c) Does the project have environmental effects which will cause substantial adverse effects on human beings, either directly or indirectly? Less than Significant with Mitigation. Based on the nature and scope of the project and the analysis of the project’s impacts, as summarized in Sections I through XX, no environmental effects have been Orange Memorial Park Aquatic Center Project Initial Study/Mitigated Negative Declaration 78 identified in this IS/MND that would cause substantial adverse effects, either directly or indirectly, on human beings. There would be a variety of other potential effects during construction including: x Impacts to nesting birds and federally protected waters associated with construction activities and minor tree removal (discussed in Section IV, Biological Resources) x Adverse impacts to prehistoric cultural resources and potential unknown human remains (discussed in Section V, Cultural Resources); x Earthwork and construction-related impacts due to the potential for liquefaction (discussed in Section VII, Geology and Soils x Construction noise-related impacts (discussed in Section XIII, Noise) x Impacts related to disposal of hazardous materials (discussed in Section IX, Hazards and Hazardous Materials); and x Adverse impacts from construction activities to Tribal Cultural Resources (discussed in Section XVII, Tribal Cultural Resources). In addition, the project could result in exposure of nearby single-family and multi-family residences to increases in ambient noise levels and nuisances associated with temporary construction-related noise (discussed in Section XIII, Noise), which would be considered less than significant with implementation of and compliance with local noise ordinances. Most of these impacts would be temporary and intermittent, and all of these impacts would be less than significant based on compliance with applicable federal, state, and local regulatory requirements and established impact thresholds, as well as the implementation of mitigation measures. And while the proposed project could involve the handling of hazardous materials in a manner that poses, unusual risks, and any hazardous impacts associated with exposure of construction workers to potential harmful contaminants demolition debris, impacts would be mitigated through the implementation of mitigation measures. The proposed would not result in long-term air quality or traffic hazards. Based on the analysis in this IS/MND, the City of South San Francisco finds that direct and indirect impacts to human beings would be less than significant with mitigation incorporated. Orange Memorial Park Aquatic Center Project Initial Study/Mitigated Negative Declaration 79 4 REFERENCES Association of Bay Area Governments (ABAG). 2023. Making Sense of the Modified Mercalli Intensity Scale (MMI) – A Measure of Shaking. Available at: https://abag.ca.gov/sites/default/files/making_sense_of_the_modified_mercalli_intensity_scale.p df. Accessed June 5, 2023. Bay Area Air Quality Management District. 2017. Final 2017 Clean Air Plan. Spare the Air-Cool the Climate. Available at: https://www.baaqmd.gov/~/media/files/planning-and- research/plans/2017-clean-air-plan/attachment-a_-proposed-final-cap-vol-1-pdf.pdf. Accessed July 19, 2023. ———. 2022. California Environmental Quality Act Air Quality Guidelines. Chapter 3. 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Available at: https://www.waterboards.ca.gov/sanfranciscobay/water_issues/programs/esl.html. Accessed June 7, 2023. ———. 2023a. GeoTracker. Available at: https://geotracker.waterboards.ca.gov/map/. Accessed June 7, 2023. ———. 2023b. GeoTracker. Parcels northwest of Orange Park (T10000002366). Available at: https://geotracker.waterboards.ca.gov/profile_report.asp?global_id=T10000002366. Accessed June 7, 2023. Stinson, M.C, M.W. Manson, and J.L. Plappert. 1982. Aggregate Resource Sectors. South San Francisco Bay P-C Region. Map 2-65. Available at: https://maps.conservation.ca.gov/cgs/informationwarehouse/index.html?map=mlc> Accessed June 13, 2023. Troung, Kim-Van, Principal, els Architecture+urban design. 2023. Email communication with Linda Rizzoli Swinerton Management & Consulting. August 25, 2023. U.S. Department of Transportation, Federal Highway Administration. 2006. FHWA Highway Construction Noise Handbook. Final Report. August 2006. ———. 2018. Transit Noise and Vibration Impact Assessment Manual. Available at: https://www.transit.dot.gov/sites/fta.dot.gov/files/docs/research-innovation/118131/transit-noise- and-vibration-impact-assessment-manual-fta-report-no-0123_0.pdf. Accessed July 24, 2023. U.S. Geological Survey (USGS). 2019. M6.9 October 17, 1989 Loma Prieta Earthquake. Available at: https://www.usgs.gov/programs/earthquake-hazards/science/m69-october-17-1989-loma-prieta- earthquake. Accessed June 5, 2023. ———. 2023. The Great San Francisco Earthquake. Available at: https://earthquake.usgs.gov/earthquakes/events/1906calif/18april/. Accessed June 5, 2023. Orange Memorial Park Aquatic Center Project Initial Study/Mitigated Negative Declaration 84 This page intentionally left blank. ORANGE MEMORIAL PARK AQUATIC CENTER PROJECT (November 2023) MITIGATION MONITORING AND REPORTING PROGRAM This Mitigation Monitoring and Reporting Program (MMRP) has been prepared for the Orange Memorial Park Aquatic Center Project pursuant to CEQA Guidelines (California Code of Regulations, Title 14), which state: Section 15097. Mitigation Monitoring and Reporting (a)… In order to ensure that the mitigation measures and project revisions identified in the EIR or negative declaration are implemented, the public agency shall adopt a program for monitoring or reporting on the revisions which it has required in the project and the measures it has imposed to mitigate or avoid significant environmental effects. A public agency may delegate reporting or monitoring responsibilities to another public agency or to a private entity which accepts the delegation; however, until mitigation measures have been completed the lead agency remains responsible for ensuring that implementation of the mitigation measures occurs in accordance with the program. (c) The public agency may choose whether its program will monitor mitigation, report on mitigation, or both. “Reporting” generally consists of a written compliance review that is presented to the decision-making body or authorized staff person. A report may be required at various stages during project implementation or upon completion of the mitigation measures. "Monitoring" is generally an ongoing or periodic process of project oversight. There is often no clear distinction between monitoring and reporting and the program best suited to ensuring compliance in any given instance will usually involve elements of both. The choice of program may be guided by the following: (1) Reporting is suited to projects which have readily measurable or quantitative mitigation measures or which already involve regular review. For example, a report may be required upon issuance of final occupancy to a project whose mitigation measures were confirmed by building inspection. (2) Monitoring is suited to projects with complex mitigation measures, such as wetlands restoration or archeological protection, which may exceed the expertise of the local agency to oversee, are expected to be implemented over a period of time, or require careful implementation to assure compliance. (3) Reporting and monitoring are suited to all but the most simple projects. Monitoring ensures that project compliance is checked on a regular basis during and, if necessary after, implementation. Reporting ensures that the approving agency is informed of compliance with mitigation requirements. The MMRP table below lists the proposed mitigation measures identified in the Orange Memorial Park Aquatic Center Project Initial Study/Mitigated Negative Declaration (IS/MND). The table also describes the timing for mitigation measure implementation (e.g.., when the measure shall be implemented) and the parties—such as the Construction Contractor and/or City of South San Francisco and/or City Representative—that are responsible for ensuring implementation of all aspects of each measure. Additionally, the MMRP table below provides comments that highlight measure contents and responsibilities. Or a n g e M e m o r i a l P a r k A q u a t i c C e n t e r P r o j e c t I n i t i a l S t u d y / M i t i g a t e d N e g a t i v e D e c l a r a t i o n ( I S / M N D ) Mi t i g a t i o n M o n i t o r i n g a n d R e p o r t i n g P r o g r a m ( F i n a l N o v e m b e r _ 2 0 2 3 ) Co l o r C o d e s Me a s u r e I m p l e m e n t e d P r i o r t o C o n s tr u c t i o n o r P e n d i n g A p p r o v a l Me a s u r e I m p l e m e n t e d D u r i n g C o n s t r u c t i o n Me a s u r e I m p l e m e n t e d F o l l o w i n g C o n s t r u c t i o n C o m p l e t i o n Im p a c t Ap p l i c a n t P r o p o s e d M e a s u r e ( A PM ) o r M i t i g a t i o n M e a s u r e Co m m e n t s Re s p o n s i b l e P a r t y Ti m i n g / M i l e s t o n e C o m p l e t i o n D a t e Bi o l o g i c a l R e s o u r c e s BI O - 1 Mi n i m i z e i m p a c t s t o s t o r m w a t e r d r a i n a g e s a n d C o l m a C r e e k : a. A l l s p o i l s , s u c h a s d i r t , e x c a v a t e d m a t e r i a l , d e b r i s , a n d co n s t r u c t i o n - r e l a t e d m a t e r i a l s , g e n e r a t e d d u r i n g p r o j e c t ac t i v i t i e s s h a l l b e p l a c e d w h e r e t h e y c a n n o t e n t e r a n y d r a i n a g e di t c h o r c u l v e r t i n l e t . S p o i l s sh a l l b e c o v e r e d o r s e c u r e d t o pr e v e n t s e d i m e n t f r o m e s c a p i n g . O n ce t h e s p o i l p i l e i s n o l o n g e r ac t i v e , i t s h a l l b e r e mo v e d f r o m t h e w o r k a r e a a n d d i s p o s e d o f la w f u l l y a t a n a p p r o p r i a t e f a c i l i t y . b. Al l e x p o s e d s o i l s i n t h e w o r k a r e a r e s u l t i n g f r o m p r o j e c t a c t i v i t i e s sh a l l b e s t a b i l i z e d i m m e d i a t e l y f o ll o w i n g t h e c o m p l e t i o n o f w o r k to p r e v e n t e r o s i o n . E r o s i o n a n d se d i m e n t c o n t r o l B M P s , s u c h a s si l t f e n c e s , s t r a w h a y b a l e s , g r a v e l o r r o c k - l i n e d d r a i n a g e s , w a t e r ch e c k b a r s , a n d b r o a d c a s t s t r a w , c a n b e u s e d . B M P s s h a l l b e ma d e o f c e r t i f i e d w e e d - f r e e m a t e r i a l s . S t r a w w a t t l e s , i f u s e d , sh a l l b e m a d e o f b i o d e g r a d a b l e f a b r i c ( e . g . , b u r l a p ) a n d f r e e o f mo n o f i l a m e n t n e t t i n g . A t n o t i m e s h a l l s i l t - l a d e n r u n o f f b e al l o w e d t o e n t e r a n y d r a i n a g e s o r o t h e r s e n s i t i v e a r e a s . c. Al l f u e l i n g a n d m a i n t e n a n c e o f v e hi c l e s a n d o t h e r e q u i p m e n t a n d st a g i n g a r e a s s h a l l o c c u r a t l e a s t 1 0 0 f e e t f r o m a n y d r a i n a g e s a n d ot h e r w a t e r f e a t u r e s . P r i o r to t h e o n s e t o f w o r k , t h e co n s t r u c t i o n c o n t r a c t o r s h a l l p r e p a r e a p l a n t o b e a p p r o v e d b y th e C i t y b e f o r e c o n s t r u c t i o n b e g i n s t o a l l o w a p r o m p t a n d ef f e c t i v e r e s p o n s e t o a n y a c c i d e n t a l s p i l l s . A l l w o r k e r s s h a l l b e in f o r m e d o f t h e i m p o r t a n c e o f pr e v e n t i n g s p i l l s , a n d o f t h e ap p r o p r i a t e m e a s u r e s t o t a k e s h o u l d a s p i l l o c c u r . d. B e f o r e c o m p l e t i o n o f t h e p r o j e c t , a l l e x p o s e d o r d i s t u r b e d su r f a c e s s h a l l b e p e r m a n e n t l y p r o t e c t e d f r o m e r o s i o n w i t h re s e e d i n g a n d l a n d s c a p i n g . e. A l l e x p o s e d s u r f a c e s s h a l l b e w e t t e d p e r i o d i c a l l y t o p r e v e n t si g n i f i c a n t d u s t . f. A l l s t o c k p i l e d s o i l s h a l l b e c o v e r e d d u r i n g p e r i o d s o f r a i n . Co l m a C r e e k s h a l l b e p r o t e c t e d f r o m p r o j e c t - ge n e r a t e d s p o i l s . En s u r e t h a t a l l e x p o s e d s o i l s a s s o c i a t e d w i t h th e p r o j e c t a r e s t a b i l i z e d i m m e d i a t e l y f o l l o w i n g co n s t r u c t i o n c o m p l e t i o n. A p p r o p r i a t e B M P s sh a l l b e d e p l o y e d p r i o r t o a n d d u r i n g co n s t r u c t i o n t o p r e v e n t e r o s i o n a n d / o r r u n o f f in t o p o t e n t i a l l y j u r i s d i c t i o n a l d r a i n a g e s . En s u r e f u e l i n g a n d m a i n t e n a n c e o f v e h i c l e s a n d ot h e r e q u i p m e n t a n d s t a g i n g a r e a s d o n o t oc c u r w i t h i n 1 0 0 f e e t o f d r a i n a g e s , a n d t h a t su c h d r a i n a g e s a r e n o t c o n t a m i n a t e d d u r i n g re f u e l i n g , m a i n t e n a n c e , or s t a g i n g o f m a t e r i a l s . Pr i o r t o b e g i n n i n g p r o j e c t w o r k , t h e Co n t r a c t o r sh a l l d e v e l o p a S p i l l R e s p o n s e P l a n t o e n s u r e pr o m p t a n d e f f e c t i v e r e s p o n s e t o a c c i d e n t a l sp i l l s . T h e p l a n m u s t b e s u b m i t t e d t o t h e C i t y o f So u t h S a n F r a n c i s c o b e f o r e c o n s t r u c t i o n co m m e n c e s , a n d m u s t b e k e p t o n s i t e a t a l l ti m e s d u r i n g c o n s t r u c t i o n . A d e q u a t e s p i l l c l e a n - up s u p p l i e s m u s t b e k e p t o n s i t e a n d a t - t h e - re a d y d u r i n g c o n s t r u c t i o n . T h e p l a n w i l l b e in c l u d e d i n t h e e n v i r o n m e n t a l a w a r e n e s s tr a i n i n g . Re d u c e p o t e n t i a l f o r d u s t b y w e t t i n g e x p o s e d su r f a c e s p e r i o d i c a l l y . Re d u c e p o t e n t i a l f o r s e d i m e n t l o s s b y c o v e r i n g st o c k p i l e d s o i l s d u r i n g p e r i o d s o f r a i n . On c e t h e p r o j e c t i s c o m p le t e , e n s u r e t h a t a l l ex p o s e d a n d / o r d i s t u r b e d s u r f a c e s a r e pr o t e c t e d f r o m s o i l e r o s i o n w i t h r e s e e d i n g a n d la n d s c a p i n g . Ge n e r a l C o n t r a c t o r / C i t y o f So u t h S a n F r a n c i s c o an d / o r C i t y Re p r e s en t a t i v e Pr i o r t o / d u r i n g co n s t r u c t i o n Or a n g e M e m o r i a l P a r k A q u a t i c C e n t e r M M R P , N o v e m b e r 2 0 2 3 1 o f 7 Or a n g e M e m o r i a l P a r k A q u a t i c C e n t e r P r o j e c t I n i t i a l S t u d y / M i t i g a t e d N e g a t i v e D e c l a r a t i o n ( I S / M N D ) Mi t i g a t i o n M o n i t o r i n g a n d R e p o r t i n g P r o g r a m ( F i n a l N o v e m b e r _ 2 0 2 3 ) Co l o r C o d e s Me a s u r e I m p l e m e n t e d P r i o r t o C o n s tr u c t i o n o r P e n d i n g A p p r o v a l Me a s u r e I m p l e m e n t e d D u r i n g C o n s t r u c t i o n Me a s u r e I m p l e m e n t e d F o l l o w i n g C o n s t r u c t i o n C o m p l e t i o n Im p a c t Ap p l i c a n t P r o p o s e d M e a s u r e ( A PM ) o r M i t i g a t i o n M e a s u r e Co m m e n t s Re s p o n s i b l e P a r t y Ti m i n g / M i l e s t o n e C o m p l e t i o n D a t e BI O - 2 Mi n i m i z e i m p a c t s t o n e s t i n g b i r d s, a s r e q u i r e d b y t h e F e d e r a l Mi g r a t o r y B i r d T r e a t y A c t : a. I f p r o j e c t a c t i v i t i e s , i n c l u d i n g , b u t n o t l i m i t e d t o , t r e e r e m o v a l o r pr u n i n g , g r u b b i n g a n d g r a d i n g , a r e c o n d u c t e d d u r i n g n e s t i n g b i r d se a s o n ( F e b r u a r y 1 5 t o S e p t e m be r 1 5 ) , p r e c o n s t r u c t i o n n e s t su r v e y s s h a l l b e c o n d u c t e d i n a n d n e a r t h e p r o j e c t ( w i t h i n 5 0 0 fe e t f o r l a r g e r a p t o r s a n d 3 0 0 f e e t f o r a l l o t h e r b i r d s ) b y a qu a l i f i e d b i o l o g i s t w i t h i n 7 d a y s of t h e s t a r t o f c o n s t r u c t i o n . I f ne s t i n g b i r d s a r e i d e n t i f i e d d u r i n g t h e p r e c o n s t r u c t i o n s u r v e y , th e n t h e p r o j e c t s h a l l b e m o d i f i e d ( i . e . , a n o - w o r k e x c l u s i o n bu f f e r o f a p p r o p r i a t e s i z e [ t o b e d e t e r m i n e d b y t h e q u a l i f i e d pr o j e c t b i o l o g i s t ] s h a l l b e e r e c t ed a r o u n d a c t i v e n e s t s ) a n d / o r de l a y e d a s n e c e s s a r y t o a v o i d i m p a c t s t o t h e i d e n t i f i e d n e s t s , eg g s , a n d / o r y o u n g . D i s t u r b i n g ac t i v e n e s t s m u s t b e a v o i d e d un t i l y o u n g b i r d s h a v e f l e d g e d . Pr o j e c t a c t i v i t i e s , i n c l u d i n g g r u b b i n g a n d gr a d i n g , s h o u l d b e c o n d u c t e d o u t s i d e o f ne s t i n g b i r d s e a s o n ( F e b r u a r y 1 5 t h r o u g h Se p t e m b e r 1 5 ) . If w o r k o u t s i d e o f n e s t i n g b i r d se a s o n i s n o t f e a s i b l e , t h e n e ns u r e a q u a l i f i e d bi o l o g i s t c o n d u c t s p r e c o n st r u c t i o n n e s t i n g b i r d su r v e y s p r i o r t o c o m m e n c i n g w o r k . If n e s t i n g b i r d s o r r a p t o r s a r e o b s e r v e d o n si t e , en s u r e a n a p p r o p r i a t e l y -s i z e d n o - wo r k b u f f e r i s es t a b l i s h e d a r o u n d t h e n e s t a n d / o r t h e p r o j e c t is m o d i f i ed a n d / o r d e l a y e d a s n e c e s s a r y i n co o r d i n a t i o n w i t h t h e p r o j e c t b i o l o g i s t . Co n s t r u c t i o n C o n t r a c t o r / C i t y of So u t h S a n F r a n c i s c o an d / o r Ci t y Re p r e s e n t a t i v e Pr i o r t o / d u r i n g co n s t r u c t i o n Cu l t u r a l R e s o u r c e s CU L - 1 Av o i d i m p a c t s t o u n k n o w n c u l t u r a l r e s o u r c e s : a. I n t h e e v e n t t h a t u n a n t i c i p a t e d c u l t u r a l r e s o u r c e s a r e e x p o s e d du r i n g d i s t u r b a n c e a c t i v i t i e s , w o r k w i t h i n 1 5 m e t e r s ( 5 0 f e e t ) o f th e f i n d m u s t s t o p a n d a n S O I- q u a l i f i e d a r c h a e o l o g i s t ( S W C A Se n i o r P r o j e c t M a n a g e r C h r i s t i n a A l o n s o [ 9 2 5 - 3 9 9 - 9 2 2 0 ] ) m u s t be n o t i f i e d i m m e d i a t e l y . W o r k ma y n o t r e s u m e u n t i l a q u a l i f i e d ar c h a e o l o g i s t c a n e v a l u a t e t h e s i g n i f i c a n c e o f t h e f i n d . Di s t u r b a n c e a c t i v i t i e s m a y c o n t i n u e i n o t h e r a r e a s . I f t h e di s c o v e r y p r o v e s s i g n i f i c a n t , a d d i t i o n a l w o r k s u c h a s ar c h a e o l o g i c a l t e s t i n g , d a t a re c o v e r y , o r c o n s u l t a t i o n w i t h st a k e h o l d e r s m a y b e w a r r a n t e d . Pr i o r t o c o m m e n c i n g wo r k , e n s u r e t h a t co n s t r u c t i o n p e r s o n n e l a r e t r a i n e d a n d in f o r m e d o f h o w t o i d e n t i f y a n d a v o i d h i s t o r i c a l an d a r c h a e o l o g i c a l r e s o u r ce s i n t h e e v e n t t h a t th e y a r e e x p o s e d d u r i n g c o n s t r u c t i o n . S u c h tr a i n i n g m a y b e i n c l u d e d i n t h e e n v i r o n m e n t a l aw a r e n e s s t r a i n i n g p r e p a r e d f o r t h e p r o j e c t p e r TC R -1 . If a r c h a e o l o g i c a l o r h i s t o r i c a l r e s o u r c e s a r e di s c o v e r e d d u r i n g c o n s t r u c t i o n , t h e C o n t r a c t o r sh a l l e n s u r e t h a t w o r k i s i m m e d i a t e l y s t o p p e d in t h e v i c i n i t y o f t h e f i n d , a n d t h e C i t y o f So u t h Sa n F r a n c i s c o i s i m m e d i a t e l y n o t i f i e d . Di s co v e r e d r e s o u r c e s m u s t be l e f t i n p l a c e a s th e y w e r e f o u n d : d o n o t t o u c h , c o l l e c t , o r ot h e r w i s e d i s t u r b f o u n d r e s o u r c e s . Wo r k sh a l l n o t r e s u m e i n t h e v i c i n i t y o f a n y di s c o v e r e d r e s o u r c e s u n t i l t h e r e s o u r c e s a r e fu l l y e v a l u a t e d b y t h e a r c h a e o l o g i s t , a n d t h e Ci t y o f So u t h S a n F r a n c i s c o a p p r o v e s t h e co n t i n u a t i o n o f w o r k i n t h e v i c i n i t y o f t h e f i n d . Co n s t r u c t i o n C o n t r a c t o r / C i t y of So u t h S a n F r a n c i s c o an d / o r Ci t y Re p r e s e n t a t i v e Pr i o r t o / D u r i n g co n s t r u c t i o n Or a n g e M e m o r i a l P a r k A q u a t i c C e n t e r M M R P , N o v e m b e r 2 0 2 3 2 o f 7 Or a n g e M e m o r i a l P a r k A q u a t i c C e n t e r P r o j e c t I n i t i a l S t u d y / M i t i g a t e d N e g a t i v e D e c l a r a t i o n ( I S / M N D ) Mi t i g a t i o n M o n i t o r i n g a n d R e p o r t i n g P r o g r a m ( F i n a l N o v e m b e r _ 2 0 2 3 ) Co l o r C o d e s Me a s u r e I m p l e m e n t e d P r i o r t o C o n s tr u c t i o n o r P e n d i n g A p p r o v a l Me a s u r e I m p l e m e n t e d D u r i n g C o n s t r u c t i o n Me a s u r e I m p l e m e n t e d F o l l o w i n g C o n s t r u c t i o n C o m p l e t i o n Im p a c t Ap p l i c a n t P r o p o s e d M e a s u r e ( A PM ) o r M i t i g a t i o n M e a s u r e Co m m e n t s Re s p o n s i b l e P a r t y Ti m i n g / M i l e s t o n e C o m p l e t i o n D a t e En s u r e a n y a d d i t i o n a l c u l t u r a l w o r k s u c h a s te s t i n g o r d a t a r e c o v e r y is i m p l e m e n t e d a s re q u i r e d . CU L - 2 Av o i d i m p a c t s t o u n k n o w n h u m a n r e m a i n s : Th e d i s c o v e r y o f h u m a n r e m a i n s d u r i n g t h e c o u r s e o f th e p r o j e c t i s a po s s i b i l i t y . I f h u m a n r e m a i n s a r e e n co u n t e r e d , t h e n t h e p r o c e d u r e s ou t l i n e d b y t h e N A H C , i n a c c o r d an c e w i t h S e c t i o n 7 0 5 0 . 5 o f t h e Ca l i f o r n i a H e a l t h a n d S a f e t y C o d e a n d P R C S e c t i o n 5 0 9 7 . 9 8 , w o u l d b e fo l l o w e d . I f t h e m o n i t o r d e t e r m i n e s t h a t a d i s c o v e r y i n c l u d e s h u m a n re m a i n s : a. A l l g r o u n d - d i s t u r b i n g w o r k w i t h in t h e i m m e d i a t e v i c i n i t y ( 2 5 fe e t ) o f t h e f i n d w o u l d h a l t . b. Th e a r c h a e o l o g i s t w o u l d c o n t a c t t h e S a n M a t e o C o u n t y C o r o n e r : Sa n M a t e o C o u n t y C o r o n e r 50 T o w e r R o a d Sa n M a t e o , C A 9 4 4 0 2 Ph o n e : ( 6 5 0 ) 3 1 2 - 5 5 6 2 We b : h t t p s : / / w w w . s m c g o v . o r g / c o r o n e r c. A s a c o u r t e s y , t h e C o u n t y C o r o n e r w o u l d a l s o n o t i f y t h e N A H C : Na t i v e A m e r i c a n H e r i t a g e C o m m i s s i o n 91 5 C a p i t o l M a l l , R o o m 3 6 4 Sa c r a m e n t o , C A 9 5 8 1 4 Ph o n e : ( 9 1 6 ) 3 7 3 - 3 7 1 0 Em a i l : na h c @ n a h c . c a . g o v Th e C o u n t y C o r o n e r w o u l d h a v e 2 w o r k i n g d a y s t o e x a m i n e t h e re m a i n s a f t e r b e i n g n o t i f i e d i n ac c o r d a n c e w i t h C a l i f o r n i a H e a l t h an d S a f e t y C o d e S e c t i o n 7 0 5 0 . 5 . I f t h e S a n M a t e o C o u n t y C o r o n e r de t e r m i n e s t h a t t h e r e m a i n s a r e N a t i ve A m e r i c a n a n d a r e n o t su b j e c t t o t h e C o u n t y C o r o n e r ’ s a u th o r i t y , t h e C o u n t y C o r o n e r h a s 24 h o u r s t o n o t i f y t h e N A H C o f t h e d i s c o v e r y . d. T h e N A H C w o u l d i m m e d i a t e l y d e s i g n a t e a n d n o t i f y t h e N a t i v e Am e r i c a n M o s t L i k e l y D e s c e n d a n t ( M L D ) , w h o w i l l h a v e 4 8 h o u r s af t e r b e i n g g r a n t e d a c c e s s t o t h e l o c a t i o n o f t h e r e m a i n s t o in s p e c t t h e m a n d p r o v i d e r e c o m m e n d a t i o n s f o r t h e t r e a t m e n t o f th e m . If hu m a n r e m a i n s a r e d i s c o v e r e d d u r i n g co n s t r u c t i o n , t h e M o n i t o r a n d / o r C o n t r a c t o r sh a l l e n s u r e t h a t w o r k i s i m m e d i a t e l y s t o p p e d in wi t h i n 2 5 f e e t o f t h e f i n d , a n d t h e Sa n M a t e o Co u n t y C o r o n e r a n d Ci t y o f S o u t h S a n F r a n c i s c o is i m m e d i a t e l y n o t i f i e d . D i s c o v e r e d hu m a n re m a i n s mu s t b e l e f t i n p l a c e a s t h e y w e r e fo u n d : d o n o t t o u c h , c o l l e c t , o r o t h e r w i s e di s t u r b f o u n d r e s o u r c e s . Wo r k s h a l l n o t r e s u m e i n t h e v i c i n i t y o f a n y di s c o v e r e d r e ma i n s u n t i l t h e r e m a i n s a r e f u l l y ev a l u a t e d b y t h e Co r o n e r , a n d t h e C i t y o f So u t h Sa n F r a n c i s co a p p r o v e s t h e c o n t i n u a t i o n o f wo r k i n t h e v i c i n i t y o f t h e f i n d . Th e C o r o n e r s h a l l n o t i f y t h e N a t i v e A m e r i c a n He r i t a g e C o m m i s s i o n i f t h e r e m a i n s a r e de t e r m i n e d t o b e N a t i v e A m e r i c a n . En s u r e a n y a d d i t i o n a l tr e a t m e n t , a s re c o m m e n d e d b y t h e Na t i v e A m e r i c a n M o s t Li k e l y D e s c e n d a n t ( M L D ) , is i m p l e m e n t e d a s re q u i r e d . Co n s t r u c t i o n C o n t r a c t o r / C i t y of So u t h S a n F r a n c i s c o an d / o r Ci t y Re p r e s e n t a t i v e Du r i n g c o n s t r u c t i o n Or a n g e M e m o r i a l P a r k A q u a t i c C e n t e r M M R P , N o v e m b e r 2 0 2 3 3 o f 7 Or a n g e M e m o r i a l P a r k A q u a t i c C e n t e r P r o j e c t I n i t i a l S t u d y / M i t i g a t e d N e g a t i v e D e c l a r a t i o n ( I S / M N D ) Mi t i g a t i o n M o n i t o r i n g a n d R e p o r t i n g P r o g r a m ( F i n a l N o v e m b e r _ 2 0 2 3 ) Co l o r C o d e s Me a s u r e I m p l e m e n t e d P r i o r t o C o n s tr u c t i o n o r P e n d i n g A p p r o v a l Me a s u r e I m p l e m e n t e d D u r i n g C o n s t r u c t i o n Me a s u r e I m p l e m e n t e d F o l l o w i n g C o n s t r u c t i o n C o m p l e t i o n Im p a c t Ap p l i c a n t P r o p o s e d M e a s u r e ( A PM ) o r M i t i g a t i o n M e a s u r e Co m m e n t s Re s p o n s i b l e P a r t y Ti m i n g / M i l e s t o n e C o m p l e t i o n D a t e Ge o l o g y a n d S o i l s GE O - 1 Av o i d a n d / o r r e d u c e i m p a c t s f r o m u n s t a b l e s o i l s : a. A l l e a r t h w o r k a n d co n s t r u c t i o n a c t i v i t i e s s h a l l b e m o n i t o r e d b y a li c e n s e d e n g i n e e r o r p r o f e s s i o n a l g e o l o g i s t . T h e p u r p o s e o f t h e mo n i t o r i n g i s t o a s s e s s s o i l c o n d i t i o n s a n d c o n f i r m t h e ap p r o p r i a t e e n g i n e e r e d s u p p o r t sy s t e m s a r e i n c o r p o r a t e d i n t o th e p r o j e c t d e s i g n a n d i n s t a l l e d c o r r e c t l y . Im p l e m e n t a t i o n o f M i t i g a t i o n M e a s ur e G E O - 1 , i n a d d i t i o n t o t h e re q u i r e m e n t s o f t h e g e o t e c h n i c a l r e p o r t , w o u l d r e d u c e i m p a c t s re l a t e d t o s e i s m i c h a z a r d s t o l e s s t h a n s i g n i f i c a n t . Re v i e w a n d c o n f i r m t h e a p p r o p r i a t e en g i n e e r e d s u p p o r t s y s t e ms a r e i n c o r p o r a t e d in t o t h e p r o j e c t d e s i g n . En s u r e a li c e n s e d e n g i n e e r o r p r o f e s s i o n a l ge o l o g i s t i s o n s i t e d u r i n g a l l e a r t h w o r k a n d co n s t r u c t i o n a c t i v i t i e s . Th e l i c e n s e d e n g i n e e r o r p r o f e s s i o n a l g e o l o g i s t sh a l l c o n f i r m t h a t ap p r o p r i a t e e n g i n e e r e d su p p o rt s y s t e m s a r e i n s t a l l e d c o r r e c t l y . Co n s t r u c t i o n C o n t r a c t o r / C i t y of So u t h S a n F r a n c i s c o an d / o r Ci t y Re p r e s e n t a t i v e Pr i o r t o / D u r i n g co n s t r u c t i o n Ha z a r d s a n d H a z a r d o u s M a t e r i a l s HA Z - 1 De v e l o p a n d I m p l e m e n t a D e m o li t i o n D e b r i s M a n a g e m e n t a n d Di s p o s a l P l a n : Th e C o u n t y o r i t s C o n t r a c t o r mu s t d e v e l o p a n d i m p l e m e n t a de m o l i t i o n d e b r i s m a n a g e m e n t a n d d i s p o s a l p l a n f o r t h e n o n - Re s o u r c e C o n s e r v a t i o n a n d R e c o v e ry A c t h a z a r d o u s m a t e r i a l s t h a t ar e t o b e r e m o v e d f r o m t h e p r o j e c t s i t e p e r c o m p l i a n c e w i t h C o u n t y wa s t e d i v e r s i o n r e q u i r e m e n t s i n S a n M a t e o C o u n t y C o d e o f Or d i n a n c e s , S e c t i o n 4 . 1 0 5 . 0 3 0 ( 1 0 0 pe r c e n t o f i n e r t s o l i d s a n d a t le a s t 5 0 p e r c e n t o f t h e r e m a i n i n g c o ns t r u c t i o n a n d d e m o l i t i o n d e b r i s to n n a g e ) . T h e p l a n m u s t b e d e s i gn e d t o p r e v e n t r e l e a s e s o f ha z a r d o u s m a t e r i a l s i n q u a n t i t i e s th a t c o u l d p o s e a r i s k t o h u m a n he a l t h a n d t h e e n v i r o n m e n t , a s d e t e r m i n e d u s i n g a p p r o p r i a t e BA A Q M D , R W Q C B , D T S C , a n d / o r o t h e r a p p r o p r i a t e a g e n c y s c r e e n i n g th r e s h o l d s . De v e l o p a D e m o l i t i o n D e br i s M a n a g e m e n t a n d Di s p o s a l P l a n p r i o r t o co n s t r u c t i o n . Im p l e m e n t p l a n d u r i n g c o n s t r u c t i o n . E n s u r e 10 0 p e r c e n t o f i n e r t s o li d s a n d a t l e a s t 5 0 pe r c e n t o f t h e r e m a i n in g c o n s t r u c t i o n a n d de m o l i t i o n d e b r i s t o n n a g e a r e d i v e r t e d f r o m la n d f i l l s . Co n s t r u c t i o n C o n t r a c t o r / C i t y of So u t h S a n F r a n c i s c o an d / o r Ci t y Re p r e s e n t a t i v e P r i o r t o / D u r i n g co n s t r u c t i o n Or a n g e M e m o r i a l P a r k A q u a t i c C e n t e r M M R P , N o v e m b e r 2 0 2 3 4 o f 7 Or a n g e M e m o r i a l P a r k A q u a t i c C e n t e r P r o j e c t I n i t i a l S t u d y / M i t i g a t e d N e g a t i v e D e c l a r a t i o n ( I S / M N D ) Mi t i g a t i o n M o n i t o r i n g a n d R e p o r t i n g P r o g r a m ( F i n a l N o v e m b e r _ 2 0 2 3 ) Co l o r C o d e s Me a s u r e I m p l e m e n t e d P r i o r t o C o n s tr u c t i o n o r P e n d i n g A p p r o v a l Me a s u r e I m p l e m e n t e d D u r i n g C o n s t r u c t i o n Me a s u r e I m p l e m e n t e d F o l l o w i n g C o n s t r u c t i o n C o m p l e t i o n Im p a c t Ap p l i c a n t P r o p o s e d M e a s u r e ( A PM ) o r M i t i g a t i o n M e a s u r e Co m m e n t s Re s p o n s i b l e P a r t y Ti m i n g / M i l e s t o n e C o m p l e t i o n D a t e HA Z - 2 Th e c o n s t r u c t i o n c o n t r a c t o r (a s r e q u i r e d b y t h e c o n t r a c t sp e c i f i c a t i o n s ) s h a l l d e v e l o p a H a z a rd o u s M a t e r i a l s C o n t i n g e n c y P l a n (H M C P ) t h a t i n c l u d e s s t a n d a r d c o n s t r u c t i o n m e a s u r e s r e q u i r e d b y fe d e r a l , s t a t e , a n d l o c a l p o l i c i e s f o r t h e h a n d l i n g o f p o t e n t i a l ha z a r d o u s m a t e r i a l s a n d r e m o v a l o f o n - s i t e d e b r i s . T h e H M C P s h a l l in c l u d e t h e i m p l e m e n t a t i o n o f a Wa s t e M a n a g e m e n t P l a n ( W M P ) f o r th e m a n a g e m e n t o f a l l c o n s t r u c t i o n w a s t e , a n d a S a f e t y Ma n a g e m e n t P l a n ( S M P ) t o m in i m i z e c o n s t r u c t i o n w o r k e r ’ s e x p o s u r e to d u s t e m i s s i o n s a n d e m i s s i o n s t h a t h a v e t h e p o t e n t i a l t o c o n t a i n ha z a r d o u s c o n c e n t r a t i o n s o f a r s e n i c . A t a m i n i m u m , t h i s p l a n s h a l l in c l u d e t h e f o l l o w i n g : a. S o i l s o n t h e p r o j e c t s i t e s h o u l d b e t e s t e d f o r a r s e n i c a n d or g a n o c h l o r i n e p e s t i c i d e s p r i o r t o g r a d i n g a n d e x c a v a t i o n . b. I f c o n t a m i n a t e d s o i l s o r ot h e r h a z a r d o u s m a t e r i a l s a r e en c o u n t e r e d d u r i n g a n y s o i l m o v i n g o p e r a t i o n d u r i n g co n s t r u c t i o n , t h e H M C P s h a l l b e i m p l e m e n t e d . c. I n s t r u c t w o r k e r s o n r e c o g n i t io n a n d r e p o r t i n g o f m a t e r i a l s th a t m a y b e h a z a r d o u s . d. M i n i m i z e d e l a y s b y c o n t i n u i n g p e r f o r m a n c e o f t h e w o r k i n ar e a s n o t a f f e c t e d b y h a z a r d o u s m a t e r i a l s o p e r a t i o n s . e. I d e n t i f y a n d c o n t a c t s u b c o n t r ac t o r s a n d l i c e n s e d p e r s o n n e l qu a l i f i e d t o u n d e r t a k e s t o r a g e , r e m o v a l , t r a n s p o r t a t i o n , di s p o s a l , a n d o t h e r r e m e d i a l w o r k r e q u i r e d b y , a n d i n ac c o r d a n c e w i t h , l a w s a n d r e g u l a t i o n s . f. F o r w a r d t o e n g i n e e r , c o p i e s o f r e p o r t s , p e r m i t s , r e c e i p t s , an d o t h e r d o c u m e n t a t i o n r e l a t e d t o r e m e d i a l w o r k . g. N o t i f y s u c h a g e n c i e s a s a r e r e q u i r e d t o b e n o t i f i e d b y l a w s an d r e g u l a t i o n s w i t h i n t h e t i m e st i p u l a t e d b y s u c h l a w s a n d re g u l a t i o n s . h. F i l e r e q u e s t s f o r a d j u s t m e n t s t o c o n t r a c t t i m e a n d c o n t r a c t pr i c e d u e t o t h e f i n d i n g o f h a za r d o u s m a t e r i a l s i n t h e w o r k si t e i n a c c o r d a n c e w i t h c o n d i t i o n s o f c o n t r a c t . Pr i o r t o c o n s t r u c t i o n , d ev e l o p a H a z a r d o u s Ma t e r i a l s C o n t i n g e n c y P l a n ( H M C P ) , W a s t e Ma n a g e m e n t P l a n , a n d S a f e t y M a n a g e m e n t Pl a n . Te s t s o i l s fo r a r s e n i c a n d o r g a n o c h l o r i n e pe s t i c i d e s p r i o r t o g r a d i n g a n d e x c a v a t i o n . In s t r u c t w o r k e r s o n h o w to r e c o g n i z e a n d re p o r t m a t e r i a l s t h a t m a y b e h a z a r d o u s Im p l e m e n t H a z a r d o u s M a te r i a l s C o n t i n g e n c y Pl a n i f co n t a m i n a t e d s o i l s o r o t h e r h a z a r d o u s ma t e r i a l s a r e e n c o u n t e r e d . Co n f i r m s u b c o n t r a c t o r s a r e l i c e n s e d t o p e r f o r m st o r a g e , r e m o v a l , t r a n s p o r t a t i o n , d i s p o s a l , a n d ot h e r r e m e d i a l w o r k . Co n f i r m p r o p e r do c u m e n t a t i o n a n d a g e n c y no t i f i c a t i o n o f a n y h a z a r d o u s m a t e r i a l s . Co n s t r u c t i o n C o n t r a c t o r / C i t y of So u t h S a n F r a n c i s c o an d / o r Ci t y Re p r e s e n t a t i v e Pr i o r t o / D u r i n g Co n s t r u c t i o n No i s e Or a n g e M e m o r i a l P a r k A q u a t i c C e n t e r M M R P , N o v e m b e r 2 0 2 3 5 o f 7 NO I - 1 Re d u c e C o n s t r u c t i o n N o i s e I m p a c t s : a. S e c u r e a v a l i d C i t y p e r m i t f o r c o n s t r u c t i o n n o i s e l e v e l s t h a t co u l d p o t e n t i a l l y t e m p o r a r i l y e x c e e d 9 0 d B a t t h e p a r k ’ s pr o p e r t y l i n e i n o r d e r t o co m p l y w i t h t h e S o u t h S a n Fr a n c i s c o N o i s e R e g u l a t i o n s . b. C o n s t r u c t i o n e q u i p m e n t a n d h a ul t r u c k s s h a l l u s e t h e b e s t av a i l a b l e n o i s e c o n t r o l t e c h ni q u e s , i n c l u d i n g i m p r o v e d mu f f l e r s , u s e o f i n t a k e s i l e n c e r s , d u c t s , e n g i n e e n c l o s u r e s an d a c o u s t i c a l l y a t t e n u a t i n g b a r r i e r s , c u r t a i n s , a n d s h i e l d s . c. S i t e s t a t i o n a r y n o i s e s o u r c e s , s u c h a s a i r c o m p r e s s o r s a n d ge n e r a t o r s , a s f a r f r o m a d j a ce n t s e n s i t i v e r e c e p t o r s a s po s s i b l e . T h e s e s o u r c e s s h a l l b e m u f f l e d a n d e n c l o s e d w i t h i n te m p o r a r y s h e d s o r i n c o r p o r a t e i n s u l a t i o n b a r r i e r s , s h i e l d s , or o t h e r a t t e n u a t i n g m e a s u r e s . d. I f i m p a c t e q u i p m e n t a n d m a c h in e r y a r e u s e d s u c h a s j a c k ha m m e r s , p a v e m e n t b r e a k e r s , a n d r o c k d r i l l s , t h e y s h a l l b e hy d r a u l i c a l l y o r e l e c t r i c a ll y p o w e r e d t o a v o i d n o i s e as s o c i a t e d w i t h a i r c o m p r e s s o r s o r p n e u m a t i c a l l y p o w e r e d to o l s . I f t h e u s e o f p n e u m a t i c a l l y p o w e r e d t o o l s i s n e c e s s a r y , an e x h a u s t m u f f l e r s h a l l b e i n st a l l e d o n t h e a i r c o m p r e s s o r . Su c h a m u f f l e r c a n l o w e r n o i s e le v e l s f r o m t h e e x h a u s t b y u p to 1 0 d B A . S i m i l a r l y , t h e i n s t a l l a t i o n o f e x t e r n a l j a c k e t s o n th e t o o l s c a n r e d u c e n o i s e l e v e l s b y 5 d B A . e. M a t e r i a l s t o c k p i l e s a n d m o b i l e e q u i p m e n t , s t a g i n g , a n d pa r k i n g a r e a s s h a l l b e l o c a t e d a s f a r a s p o s s i b l e f r o m n o i s e se n s i t i v e r e c e p t o r s ( i . e . a d j a ce n t t o t l o t a n d s u m m e r c a m p s in t h e F e r n e k e B u i l d i n g . f. I d e n t i f y a l i a i s o n t h a t r e p r e s e n t s t h e p r o p e r t y o w n e r s lo c a t e d a d j a c e n t t o t h e p r o j e c t s i t e a l o n g T e n n i s D r i v e . T h i s li a i s o n s h a l l b e c o n t a c t e d w i t h c o n c e r n s r e g a r d i n g co n s t r u c t i o n n o i s e . T h e l i a i s o n ’s c o n t a c t i n f o r m a t i o n s h a l l b e cl e a r l y d i s p l a y e d a t t h e c o n s tr u c t i o n l o c a t i o n o n p o s t e d si g n s i n f o r m i n g t h e p u b l i c o f t h e c o n s t r u c t i o n h o u r s a n d t h e li a i s o n t o c o n t a c t i n t h e e v e n t o f a n o i s e - r e l a t e d p r o b l e m . g. N o t i f y a l l a d j a c e n t l a n d o w ne r s a n d o c c u p a n t s o f t h e pr o p e r t i e s a d j a c e n t t o t h e p r oj e c t s i t e o f t h e a n t i c i p a t e d co n s t r u c t i o n s c h e d u l e a t l e as t 2 w e e k s p r i o r t o g r o u n d - di s t u r b i n g a c t i v i t i e s . h. H o l d a p r e - c o n s t r u c t i o n m e e t i n g w i t h t h e C o n t r a c t o r Su p e r i n t e n d e n t , G e n e r a l C o n t r a c t o r , a n d C i t y i n s p e c t o r s t o co n f i r m t h a t a l l n o i s e m i t i g a t i o n m e a s u r e s ( i n c l u d i n g s i g n a g e on c o n s t r u c t i o n h o u r s , v a l i d C i t y e x c e p t i o n p e r m i t , a n d li a i s o n c o n t a c t i n f o r m a t i o n ) a r e c o m p l e t e d . Co n t r a c t o r S u p e r i n t e n d e n t , G e n e r a l Co n t r a c t o r , a n d C i t y i n s p e c t o r s mu s t a t t e n d a pr e c o n s t r u c t i o n m e e t i n g to c o n f i r m t h a t a l l no i s e m i t i g a t i o n m e a s u r e s ( i n c l u d i n g s i g n a g e o n co n s t r u c t i o n h o u r s , v a l i d C i t y e x c e p t i o n p e r m i t , an d l i a i s o n c o n t a c t i n f o r m at i o n ) a r e c o m p l e t e d Co n f i r m v a l i d C i t y p e r m i t f o r c o n s t r u c t i o n n o i s e le v e l s . Ke e p C i t y p e r m i t o n s i t e a t a l l t i m e s . Co n f i r m t h a t a l l e q u i p m e n t u s e s b e s t a v a i l a b l e no i s e c o n t r o l t e c h n i q u e s . Co n f i r m s t a t i o n a r y n o i s e s o u r c e s a r e a s f a r a s po s s i b l e f r o m s e n s i t i v e r e c e p t o r s . Us e o n l y hy d r a u l i c a l l y o r e l e c t r i c a l l y p o w e r e d im p a c t e q u i p m e n t a n d m a c h i n e r y . Lo c a t e m a t e r i a l s t o c k p i l e s , m o b i l e e q u i p m e n t , st a g i n g a n d p a r k i n g a r e a s a s f a r a s p o s s i b l e fr o m n o i s e -s e n s i t i v e r e c e p t o r s . Id e n t i f y l i a i s o n t o c o n t ac t i n c a s e o f n o i s e - re l a t e d i s s u e s , a n d c l e a r l y p o s t c o n t a c t in f o r m a t i o n a n d c o n s t r u c t i o n h o u r s a t co n s t r u c t i o n s i t e . No t i f y a d j a c e n t l a n d o w n e r s 2 w e e k s p r i o r t o gr o u n d d i s t u r b i n g a c t i v i t i e s . Co n s t r u c t i o n C o n t r a c t o r / C i t y of So u t h S a n F r a n c i s c o an d / o r Ci t y Re p r e s e n t a t i v e Pr i o r t o / D u r i n g co n s t r u c t i o n No i s e Or a n g e M e m o r i a l P a r k A q u a t i c C e n t e r M M R P , N o v e m b e r 2 0 2 3 6 o f 7 Or a n g e M e m o r i a l P a r k A q u a t i c C e n t e r P r o j e c t I n i t i a l S t u d y / M i t i g a t e d N e g a t i v e D e c l a r a t i o n ( I S / M N D ) Mi t i g a t i o n M o n i t o r i n g a n d R e p o r t i n g P r o g r a m ( F i n a l N o v e m b e r _ 2 0 2 3 ) Co l o r C o d e s Me a s u r e I m p l e m e n t e d P r i o r t o C o n s tr u c t i o n o r P e n d i n g A p p r o v a l Me a s u r e I m p l e m e n t e d D u r i n g C o n s t r u c t i o n Me a s u r e I m p l e m e n t e d F o l l o w i n g C o n s t r u c t i o n C o m p l e t i o n Im p a c t Ap p l i c a n t P r o p o s e d M e a s u r e ( A PM ) o r M i t i g a t i o n M e a s u r e Co m m e n t s Re s p o n s i b l e P a r t y Ti m i n g / M i l e s t o n e C o m p l e t i o n D a t e TC R - 1 Av o i d i m p a c t s t o u n k n o w n T r ib a l C u l t u r a l R e s o u r c e s : Th e f o l l o w i n g m e a s u r e s s h a l l b e i m p l e m e n t e d p r i o r t o p r o j e c t im p l e m e n t a t i o n a n d i n t h e e v e n t t h a t u n a n t i c i p a t e d p r e h i s t o r i c c u l t u r a l re s o u r c e s o r T C R s a r e e x p o s e d d u r i n g p r o j e c t c o n s t r u c t i o n : a. Al l c o n s t r u c t i o n s t a f f m u s t re c e i v e w o r k e r e n v i r o n m e n t aw a r e n e s s t r a i n i n g ( W E A P ) t h a t i d en t i f i e s t h e i d e n t i f i c a t i o n a n d pr o p e r t r e a t m e n t o f t r i b a l c u l t u r al r e s o u r c e s . I n t h e e v e n t t h a t un a n t i c i p a t e d p r e h i s t o r i c c u l t u r al r e s o u r c e s a r e e x p o s e d d u r i n g di s t u r b a n c e a c t i v i t i e s , w o r k w i t h i n 1 5 m e t e r s ( 5 0 f e e t ) o f t h e f i n d (Fi n d S i t e ) m u s t s t o p a n d t h e C a l i f or n i a N a t i v e A m e r i c a n H e r i t a g e Co m m i s s i o n m u s t b e c o n t a c t e d t o i d e n t i f y a l o c a l N a t i v e Am e r i c a n t r i b a l m e m b e r t o p r o v i d e m o n i t o r i n g i n s p e c t i o n o f a n y fu r t h e r c o n s t r u c t i o n w o r k a t t h e F i n d S i t e . W o r k m a y n o t r e s u m e at t h e F i n d S i t e u n t i l a t r i b a l m e m b e r i s p r e s e n t t o p r o v i d e mo n i t o r i n g i n s p e c t i o n Pr i o r t o t h e s t a r t o f t h e pr o j e c t , a l l c o n s t r u c t i o n cr e w m e m b e r s s h a l l a t t e nd a n e n v i r o n m e n t a l aw a r e n e s s t r a i n i n g p r e s e n t e d b y a q u a l i f i e d ar c h e o l o g i s t . A t r a i n i n g b r o c h u r e d e s c r i b i n g th e id e n t i f i c a t i o n a n d p r o p e r t r e a t m e n t o f t r i b a l cu l t u r a l r e s o u r c e s , k e y c o n t a c t s , a n d p o t e n t i a l co n s e q u e n c e s o f i m p a c t s t o cu l t u r a l r e s o u r c e s sh a l l b e d i s t r i b u t e d t o t h e c r e w m e m b e r s du r i n g t h e t r a i n i n g . T r a i n e e s s h a l l s i g n a n en v i r o n m e n t a l t r a i n i n g a t t e n d a n c e s h e e t . A f a c t sh e e t c o n v e y i n g t h i s in f o r m a t i o n s h a l l b e pr e p a r e d f o r d i s t r i b u t i o n t o t h e c o n s t r u c t i o n cr e w a n d a n y o n e e l s e w h o e n t e r s t h e p r o j e c t si t e . If u n a n t i c i p a t e d p r e h i s t o ri c c u l t u r a l r e s o u r c e s ar e e x p o s e d d u r i n g co n s t r u c t i o n , S T O P W O R K wi th i n 1 5 m e t e r s ( 5 0 f e e t ) o f t h e f i n d a n d c a l l th e C a l i f o r n i a N a t i v e A m e r i c a n H e r i t a g e Co m m i s s i o n . W o r k i n o t h e r a r e a s m a y co n t i n u e . A N a t i v e A m e r i c a n m o n i t o r w i l l b e i d e n t i f i e d . Do n o t r e s u m e w o r k un t i l a l o c a l N a t i v e Am e r i c a n t r i b a l m o n i t o r i s pr e s e n t o n s i t e . Co n s t r u c t i o n C o n t r a c t o r / C i t y of So u t h S a n F r a n c i s c o an d / o r Ci t y Re p r e s e n t a t i v e Pr i o r t o / D u r i n g co n s t r u c t i o n Or a n g e M e m o r i a l P a r k A q u a t i c C e n t e r M M R P , N o v e m b e r 2 0 2 3 7 o f 7