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WASTE DISCHARGE REQUIREMENTS -5- GOLDEN GATE FRESH FOODS, INC. VICTOR FINE FOODS T REATi�icir T PLANT AND CLASS II SURFACE IMPOUNDMENT SAN JOAQUIN COUNTY above, except Cleanup and Abatement Order No. 87-733, which remains under the name of Goehring Meat Inc. Special Order No. 89-037 will be retained. Description of Site 18. Land within 1000 feet of the pretreatment facilities and injection well is used for agriculture, housing, education, and industry. 19. The facility is at an approximate elevation of between 45 and 60 feet above mean sea level (MSL) . The land surface slopes generally towards the southwest and the Mokelumne River. 20. The surface geology in the immediate vicinity belongs to the Victor Formation. The formation consist of layers of sand, silt, and clay with enclosed ancient stream channel deposits of sand and gravel . Permeabilities range from low in the clay and hard pan layers to extremely high in the ancient stream channels. Well logs from the ongoing ground water investigation and remediation indicate both continuous and discontinuous layers of sand, silt and clay underlie the site. 21. Ground water in the Victor Formation underlying the site is generally unconfined, with semi-confined conditions existing beneath the well defined clay lenses. The ground water table is at about 55 feet below the ground surface and 35 to 40 feet below the bottom of the EESB. The ground water gradient is generally north with localized variations due to pumping. 22. The beneficial uses of the groundwater include domestic, agricultural , and industrial . Background TDS levels are around 150 mg/l . 23. The upper three zones of ground water, known as the A, B, and C zones, have all been polluted by the past discharge practices at the facility. Zones A and B, 50 to 75 feet and 110 to 130 feet deep respectively, have both been severely impacted by the high TDS discharges Both zones have areas where TDS levels have exceeded 3,000 mg/l . C zone wells have been impacted less severely, with TDS levels in downgradient wells approaching 450 mg/1 . 24. DBCP has been detected in monitoring and domestic wells above state actions levels. Users have been notified by the San Joaquin County Public Health Services. This contamination is not related to past or present discharge practices at GMI or VFF. 25. The facility receives an average of 16.27 inches of precipitation per year as measured at Lodi between the years 1951 and 1980. The mean evaporation