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0 . <br /> d <br /> WASTE DISCHARGE REQUIREMENTS -4- <br /> FORWARD INCORPORATED <br /> WASTE MANAGEMENT FACILITY <br /> CLASS II LNOFILLS <br /> CLASS III LANDFILLS <br /> CLASS II SURFACE IMPOUNDMENT . <br /> CLASS II LAND TREATMENT UNIT <br /> SAN JOAQUIN COUNTY <br /> 1,800 feet. Others are discontinuous across the site. The lenses range <br /> from ew inches to approximately 20 feet in thickness. Based on geo- <br /> logical cross-sections submitted with the Report of Waste Discharge, over <br /> 50 percent of the material within 60 feet of the ground surface is coarse <br /> grained soil (Bureau of Reclamation, Unified Soil Classification). <br /> 18. The shallow ground water beneath the site is contained in the Victor <br /> Formation and recent alluvium. Generally, these sediments have moderate <br /> permeabilities with locally high permeabilities in the sandy and gravelly <br /> lenses. Ground water in the Victor Formation is unconfined and flows in a <br /> north-northeasterly direction beneath the site. The ground water table is <br /> 30-40 feet below. the bottom of the WMUs. The quality of this water is <br /> suitable for domestic or agricultural use. <br /> 19. The beneficial uses of ground water are municipal, domestic, agricultural, <br /> and industrial supply. <br /> 20. The site receives an average of 13.3 inches of precipitation per year as <br /> measured at the Stockton Airport between the years 1949 and 1980. The mean <br /> evaporation for this site is 78.4 inches per year as measured at Oakdale <br /> Woodard Reservoir between the years 1919 and 1968. Based on these data, <br /> average annual net evaporation at the site is 65.1 inches. <br /> 21. The _1,000-year, 24-hour precipitation event for the site is 4.79 inches. <br /> 22. The IOD-year, 24-hour precipitation event for the site is 3.73 inches. <br /> 23. - The site is not within a 100-year floodplain. <br /> 24. Surface drainage is to the South Fork of South Littlejohns Creek, which is <br /> tributary-- to South Littlejohns Creek, which flows into Littlejohns Creek, <br /> tributary to French Camp Slough, hence San Joaquin River and the Delta. <br /> 25. The beneficial uses of these surface waters are recreation; esthetic <br /> enjoyment; and preservation and enhancement of fish, wildlife and other <br /> aquatic resources. <br /> 26. There are no known Holocene faults within 200 feet of the Forward facility. <br /> The closest active fault is the Greenville Fault which is approximately 28 <br /> miles west-southwest of the site. A maximum credible earthquake in the <br /> area will produce a ground acceleration of 0.2 g at the facility. <br />