75A - PH - AMEND GENERAL PLAN - Laserfiche WebLink

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2014 -2021 SANTA ANA HOUSING ELEMENT AND PUBLIC SAFETY ELEMENT UPDATES CITY OF SANTA ANA 3. Environmental Analysis process, future development would be evaluated for potential impacts to wastewater treatment facilities. Where needed, appropriate mitigation measures would be required to reduce potential impacts. Impacts to wastewater treatment due to adoption of the Housing Element would be less than significant. b) Require or result in the construction of new water or waste water treatment facilities or expansion of existing facilities, the constriction of which could cause significant environmental effects? Less than Significant Impact. The City of Santa Ana maintains approximately 450 miles of local sewer lines (Santa Ana 2010). Main sewer trunks within the City of Santa Ana are owned and maintained by OCSD, which provides sewage collection and treatment service. The City's sewage is diverted to Reclamation Plant Number 1 in Fountain Valley. The reclamation plant takes in approximately 92 million gallons per day (gpd) and is planned to provide capacity of up to 120 million gpd (OCSD 2013). The Housing Element designates adequate sites for potential future development that could accommodate any unmet portion of the RHNA through 2021. The MEMU and TZC EIRs indicated that implementation of each project would not generate enough wastewater to pose a significant impact on existing facilities. Future proposed developments would be requited to undertake a site - specific sewer evaluation and might be required, as part of the project design, to determine the adequacy of the existing sewer pipe capacity in the affected project area lines. The existing sewer infrastructure within the Harbor Corridor Specific Plan is deficient based on Orange County Sanitation District depth of flow versus diameter requirements. However, the IIarbor Corridor Specific Plan would not generate enough wastewater to pose a significant impact to the existing infrastructure. The IIarbor Corridor Specific Plan EIR is currently being prepared and will address any potentially significant impacts and provide mitigation measures as necessary. If improvements are needed, However, developers would be responsible for paying a pro rata share of the costs to improve or replace the infrastructure. Any future projects would also be required to consult with OCSD to estimate the level and type of demand to determine the significance of impacts to existing and planned levels of service, and to develop measures to avoid or reduce potentially significant impacts to less than significant, if possible. Additionally, OCSD requires all new developers of residential projects within their service area to pay capital facility charges that are designed to fund the construction, maintenance, and 'improvement of facilities. Therefore, the Housing Element itself would be less than significant. c) Require or result in the construction of new storm water drainage facilities or expansion of existing facilities, the construction of which could cause significant environmental effects? Less than Significant Impact. Storm drainage is provided through reinforced concrete pipes and open channels throughout the city. Stormwater flows are directed toward Orange County Flood Control open channels or the Santa Ana River. Stormwater in the City generally flows southwest toward the Pacific Ocean, The City maintains an NPDES copermit with Orange County for storm drain facilities serving Santa Ana. December 2013 The Planning Center I DCdrE • Page 67 75A -89