Reso PC22-08 0085 PC Reso Recommending CEQA

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Findings and Statements Required by the California Environmental Quality Act Harbor View Project PAGE 12 OF 48 ESA / 170951 Final Environmental Impact Report October 2022 ATTY/RESO.0085/PC RESO RECOMMENDING CEQA – EXHIBIT A REV: 11-02-2022 VR Impact HYD-2: The Project would not substantially deplete groundwater supplies or interfere substantially with groundwater recharge such that there would be a net deficit in aquifer volume or a lowering of the local groundwater table. Findings Regarding Impact HYD-2: The Revised Project does not require the extraction or importation of any groundwater supplies to meet water supply demand for the Project. Also, on- site drainage plans would require the use of low impact development (LID) features and stormwater detention, thereby minimizing the amount of stormwater discharge offsite. The impact would be less than significant. (DEIR, p. 4.8-15; FEIR, p. 2-15.) Impact HYD-3: The Project would not potentially alter the drainage pattern of the site such that it would result in substantial erosion or siltation on or off the site. Findings Regarding Impact HYD-3: As discussed under Impacts HYD-1 below and HYD-2, the Revised Project would increase the pervious surface area on the project site, which could decrease the amount of stormwater flows generated onsite. The development would adhere to local, regional and state drainage control requirements that prevent concentrated runoff and have proven effective in controlling erosion potential and the transport of siltation on or off site. The impact would be less than significant. (DEIR, pp. 4.8-15 to 4.8-16; FEIR, p. 2-15.) Impact HYD-4: The Project would not increase runoff and result in flooding on- or off-site. Findings Regarding Impact HYD-4: Same as discussed under Impacts HYD-1, HYD-2 and HYD-3, above. Largely, the Revised Project would increase the amount of impervious surfaces, and develop and adhere to a drainage plan that complies with City and countywide requirements regarding flow control. The Revised Project would also involve improvements to ensure the existing full flow storm drain flow capacity is maintained, as is applicable to the Revised Project’s portion of flow. The impact would be less than significant. (DEIR, p. 4.8-16; FEIR, p. 2-15.) Impact HYD-6: The Project would not place housing within the 100-year flood plain and structures would be elevated within the 100-year flood plain and structures within the 100-year flood plain would be elevated. Findings Regarding Impact HYD-6: Construction of the Revised Project could be exposed to flooding hazards if not designed appropriately. Therefore, the Revised Project would adhere with the City of Redwood City’s Municipal Code, Chapter 41 Floodplain Management that would ensure that the lowest floor of the buildings be at or above the 100-year base flood elevation and subsequently certified and verified as such. Revised Project grading would raise the level of finished floor elevations at least one foot above the current FEMA base flood elevation plus an additional three feet to accommodate anticipated future sea level rise. Therefore, the proposed grading and finished floor elevations would increase elevations above flood hazard levels in accordance with the minimum standards of City code requirements and accommodating future sea level rise increases. The impact would be less than significant. (DEIR, pp. 4.8-17 to 4.8-18; FEIR, p. 2-15.)