Reso PC15-01 PC Reso (3051 ) to Adopt Initial Study-Mitigated Negative Declaration - La Palma

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Mitigated Negative Declaration components during demolition activities and could become air-borne;therefore,it shall be managed and disposed as a separate waste stream.Any debris or soil containing lead paint or coat shall be disposed at landfills that are permitted to accept the waste being disposed. Hydrology and Water Quality Mitigation Measure HYD-1:All project grading, construction, and subsequent operations shall comply with the provision of the City of Redwood City's National Pollutant Discharge Elimination System(NPDES)requirements.A Stormwater Pollution Prevention Plan(SWPPP)outlining construction phase and post-construction phase measures to reduce pollutant discharge from the site shall be submitted for review and approval by the Engineering and Transportation Services prior to the issuance of Grading and Building Permits. Mitigation Measure HYD-2:If the project is constructed during the wet season(October through May), an erosion and sediment control plan, compliant with the City's NPDES (stormwater control)requirements, shall be prepared and implemented,to the satisfaction of Engineering and Transportation Services, prior to the onset of the wet season, and shall be maintained throughout the construction period. Mitigation Measure HYD-3:A Stormwater Control Plan (SWCP) shall be prepared to detail the permanent stormwater management facilities that shall be incorporated into the project to treat stormwater runoff and to control runoff rates and volumes after the construction process. The facilities shall, at a minimum, incorporate the following features and techniques:minimizing impervious surfaces, implementing the use of permeable pavers,leading drain rooftops downspouts to bio-retention basins, and using landscape swales, area drains, and a stormwater detention system on the project site. The SWCP shall be submitted for review and approval by the Planning Services and Engineering and Transportation Services prior to the issuance of Grading and Building Permits. Mitigation Measure HYD-4:The applicant shall submit a Hydrology and Hydraulics Study for review and approval by Planning Services and Engineering and Transportation Services prior to issuance of Grading and Building Permits to confirm: 1. The permanent stormwater management facilities incorporated into the project would reduce post-development stormwater discharge to equal or less than pre- development discharge levels; and 2. The City's existing storm drainage system in Kentfield Avenue would have adequate capacity to accommodate the project. Additional features shall be incorporated into the SWCP and the runoff estimates calculated, as needed to ensure compliance with the City's Municipal Code. La Palma Subdivision Project Final Initial Study/Mitigated Negative Declaration T