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FA - 24 <br />improvements to sewer collection and transmission systems, treatment and capacity will <br />be evaluated at the time an application is submitted for each PC permit. <br />D. Cumulative Wastewater and Storm Drain System <br />Potential Impact: The proposed Project and the Higher Occupancy <br />Scenario, in conjunction with other pending and future development, could have <br />potentially significant wastewater and storm drainage impacts. (Potentially Significant) <br />Mitigation: The following mitigation measures, as set forth in the FEIR, <br />are hereby adopted and will be implemented as provided in the Mitigation Monitoring <br />Program: <br />• Mitigation Measures UT -5.1 and UT -5.2 <br />Finding: Mitigation Measures UT -5.1 and UT -5.2 are feasible and would <br />reduce the impacts of the Project and the Higher Occupancy Scenario related to <br />increased wastewater flows and storm water runoff to less- than - significant levels. <br />The City of Redwood City possesses an option to purchase an additional <br />2.685 mgd from the Stage II expansion of the South Bayside System Authority's water <br />treatment facility to accommodate wastewater flows from Kaiser and other cumulative <br />development. Currently, approximately 2.08 mgd out of the 2.685 mgd sewer treatment <br />capacity rights are available for purchase. This additional capacity is sufficient to <br />accommodate the projected wastewater flow from the proposed Project or the Higher <br />Occupancy Scenario. However, under the proposed Project and the Higher Occupancy <br />Scenario, development would occur at the Project site over a 20+ -year horizon. <br />Depending on the schedule of construction at the Project site, the remaining reserve <br />capacity could be exhausted, and development and purchase of additional wastewater <br />treatment capacity as part of a Stage III expansion would be necessary. In addition, the <br />local sewer collection system and the South Bayside System Authority's sewer <br />transmission facilities would need to be upgraded. <br />The Storm Drain Sub - basin, in which the Project site is located, is <br />relatively small and serviced by the Maple Street Storm Drain Pump Station and the (K- <br />Mart) Pump Station at Steinberger Creek, as shown in the FEIR. Although the effects of <br />the proposed Project and the Higher Occupancy Scenario on storm water volumes is <br />expected to be less than significant, the storm drains may already be at capacity. <br />Cumulative development may therefore adversely affect the piping system and the <br />pump stations at Maple Street and at Steinberger Creek. The contribution of the <br />proposed Project and the Higher Occupancy Scenario to this cumulative effect is <br />anticipated to be less than significant; this assumption shall be confirmed as Kaiser <br />requests subsequent approvals for phases of the Project. <br />Mitigation Measures UT -5.1 and UT -5.2 would reduce the cumulative <br />impact of the proposed Project or the Higher Occupancy Scenario on wastewater <br />treatment and the storm drain system to a less- than - significant level by providing <br />16 <br />