2020-065 - Adopting Environmental Findings of Fact

Home Browse Search

The Warner Redhill Mixed -Use Project CEQA Findings of Fact "Zone X," which is an area determined to be outside of the 0.2 percent annual chance flood. Therefore, there is a low potential for onsite flooding to occur. The Project would maintain the existing drainage pattern; and drainage would be accommodated by onsite by Modular Wetland System units that have been sized to accommodate the DAMP required design storm. Therefore, the Project would not result in impeding or redirecting flood flows by the addition of the impervious surfaces. As detailed previously, the City's permitting process would ensure that the drainage system specifications adhere to the existing MS4 permit and DAMP regulations, and compliance with existing regulations would ensure that impacts would be less than significant. Plans, Program and Policies PPP WO-1: NPDES/SWPPP. As listed previously. PPP WO-2: WQMP. As listed previously. Impact Finding; The Project would risk release of pollutants due to project inundation in a flood hazard, tsunami, or seiche zones, (Draft EIR at p. 5.8-18). Fads in Support of Findings: The FEMA FIRM for the Project area (06059CO279J) shows that the Project site is located within "Zone X," which is an area of minimal flood hazard potential outside of the 0.2 percent annual chance flood. Thus, the Project site is not located within a flood hazard area that could be inundated with flood flows and result in release of pollutants. Impacts related to flood hazards and pollutants would not occur from the Project. The Project site is over 8.5 miles from the Pacific Ocean, and outside of the Tsunami Hazard Zone identified by the California Department of Conservation. Thus, the Project site would not be inundated by a tsunami that could result in the release of pollutants, and impacts would not occur. Additionally, because the Project site is not within the vicinity of a water body, it is not at risk for seiche flood hazards. Therefore, the release of pollutants on the Project site resulting from a seiche inundation would not occur Impact Finding: The Project would not conflict with or obstruct implementation of a water quality control plan or sustainable groundwater management plan (Draft EIR at p. 5.8-18). Facts in Support of Findings: Use of BMPs during construction implemented as part of a SWPPP as required by the NPDES Construction General Permit and PPP WQ-1 would serve to ensure that Project impacts related to construction activities resulting in a degradation of water quality would be less than significant. Thus, construction of the Project would not conflict or obstruct implementation of a water quality control plan. Also, development projects are required to implement a WQMP (per the Regional MS4 Permit) that would comply with the Orange County DAMP. The WQMP and applicable BMPs are verified as part of the City's permitting approval process, and construction plans would be required to demonstrate compliance with these regulations. Therefore, operation of the proposed Project would not conflict of obstruct with a water quality control plan. In addition, as detailed previously, the OCWD manages basin water supply through the Basin Production Percentage (BPP), such that, the anticipated production of groundwater would remain City of Santa Ana 26 May 2020