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INFORMATION SHEET <br /> CITY OF RIPON <br /> INDUSTRIAL AND DOMESTIC <br /> WASTEWATER TREATMENT PLANT <br /> SAN JOAQUIN COUNTY <br /> The City of Ripon operates a wastewater facility south of the <br /> City and north of the Stanislaus River. The facility receives <br /> domestic wastewater from a population of 4,800 and industrial <br /> wastewater from the Nestle and Nulaid Egg plants. The City is <br /> proposing to increase the domestic flow from 0. 332 mgd to 0.499 <br /> mgd by construction of additional evaporation/percolation ponds . <br /> The City also proposes to use industrial wastewater, currently <br /> being discharged to infiltration beds , for surface irrigation of <br /> 18.6 acres of new pasture owned by the City. <br /> The City has not discharged to the Stanislaus River since June <br /> 1975 and does not have future plans to do so; consequently, the <br /> Discharger requests rescission of the NPDES permit. <br /> Soils of the area are basically derived from alluvial deposits of <br /> the Stanislaus River and are generally silty sand and sandy silt. <br /> Depth to ground water adjusts to the level of the water in the <br /> Stanislaus River varying from 5-1/2 ' to 7-1/2 ' during winter and <br /> from 14 ' -19 ' during summer. Annual precipitation is estimated to <br /> be 14-1/2 inches (37 cm) . <br /> The City has adopted a Negative Declaration and compliance with <br /> the waste discharge requirements will mitigate or avoid the <br /> significant impacts on water quality. <br /> 6/5/85:PSI:jec <br />