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<br />it result in an increase in any pollutant of which the <br />body is already impaired? <br /> <br />o. Tributary to other environmentally sensitive areas? If <br />so, can it exacerbate already existing sensitive <br />conditions? <br /> <br />P. Have a potentially significant environmental impact or <br />surface water quality to either marine, fresh or <br />wetland waters? <br /> <br />R. Cause or contribute to an exceedance of applicable <br />surface or groundwater receiving water quality <br />objectives or degradation of beneficial uses? <br /> <br />S. Impact aquatic, wetland or riparian habitat? <br /> <br />Potentially Significant Unless Mitigation Incorporated <br /> <br />The City of Santa Ana is included within four watersheds, <br />San Diego Creek, Santa Ana River, Talbert and Westminster. <br />Each of these watershed areas are under the jurisdiction of <br />the Santa Ana Regional Water Quality Control Board and <br />subject to the objectives, water quality standards and Best <br />Management Practice requirements established in the Santa <br />Ana River Basin Plan and Orange County Drainage Area <br />Management Plan. The City of Santa Ana implements the <br />goals, objectives and requirements of the Basin Plan and <br />Drainage Area Management Plan through the City's Local <br />Implementation Plan. <br /> <br />Storm water flows from the proj ect site would be conveyed <br />to Lane channel and the Santa Ana-Delhi Channel before <br />ultimately discharging into Reach 1 of San Diego Creek. The <br />Santa Ana Regional Water Quality Control Board has <br />identified San Diego Creek as impaired by nutrients, <br />sediments, metals and pesticides. <br /> <br />The primary concern for water quality pollutants associated <br />with the operation of the proposed proj ect would be from <br />the car wash operation. Degraded water resulting from the <br />washing of vehicles could result in adverse water quality <br />impacts to downstream receiving waters. To minimize water <br />quality impacts the proposed project would be required to <br />install sand/grease interceptor. <br /> <br />15 <br /> <br />31A8~6 <br />