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<br />N. <br /> <br />Tributary to an already impaired water body, as <br />the Clean Water Act Section 303(d) list. If so, <br />result in an increase in any pollutant of which <br />already impaired? <br /> <br />listed on <br />can it <br />the body is <br /> <br />R. <br /> <br />Cause or contribute to an exceedance of applicable surface <br />or groundwater receiving water quality objectives or <br />degradation of beneficial uses? <br /> <br />Less Than Significant Impact <br /> <br />The City of Santa Ana is included within four watersheds; San <br />Diego Creek, Santa Ana River, Talbert and Westminster. Each of <br />these watershed areas are under the jurisdiction of the Santa <br />Ana Regional Water Quality Control Board and subject to the <br />objectives, water quality standards and Best Management Practice <br />requirements established in the Santa Ana River Basin Plan and <br />Orange County Drainage Area Management Plan. <br /> <br />The City of Santa Ana does not contain any impaired water <br />bodies, as defined by Section 303 of the Clean Water Act. <br />However, the City does contain several drainage facilities <br />convey surface water runoff into bodies of water that are <br />classified as impaired. <br /> <br />that <br /> <br />The proposed general plan amendments would establish goals, <br />objectives and policies to provide for the conservation and <br />protection of watersheds and to minimize water quality impacts <br />in the City. Additionally, approval of the proposed general plan <br />element amendments would not result in any adverse water quality <br />impacts, in that the approval of the proposed amendments would <br />not result in any activities that would generate pollutants that <br />would adversely impact water quality. <br /> <br />B. <br /> <br />Substantially deplete groundwater supplies or interfere <br />substantially with groundwater recharge such that there <br />would be a net deficit in aquifer volume or a lowering of <br />the local groundwater table level. <br /> <br />Q. <br /> <br />Have a potentially significant adverse impact on <br />groundwater quality? <br /> <br />No Impact <br /> <br />The City of Santa Ana receives 66% of its water from underground <br />water supplies. The underground water basin in the City ranges <br />from -50-feet to +40-feet above sea level. Presently, the City <br /> <br />11 <br /> <br />7 5tJ~.}11t <br />