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No Impact <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 />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 that <br />convey surface water runoff into bodies of water that are <br />classified as impaired. <br />Approval of the proposed general plan element amendments would <br />not result in any adverse water quality impacts, in that the <br />approval of the proposed amendments would not result in any <br />activities that would generate pollutants that would adversely <br />impact water quality. <br />B. 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 />Q. Have a potentially significant adverse impact on <br />groundwater quality? <br />No Impact <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 />pumps underground water from 21 water wells. Fourteen of the <br />water wells pump ground water into small surface reservoirs. The <br />remaining seven water wells pump underground water into the <br />City's distribution system. <br />Approval of the proposed general plan amendments would not <br />impact underground supplies, in that the proposed amendments <br />would not involve any activities that would encroach into the <br />underground water basin, impact the quality of underground water <br />supplies or prevent the recharge of underground water supplies. <br />12 <br />75C-50 <br />