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WASTE DISCHARGE NQUIREMENTS ORDER NO. -3- FORWARD INC. FOR CLOSURE OF FRENCH CAMP MUNICIPAL SOLID WASTE LANDFILL SAN JOAQUIN COUNTY WASTE AND SITE CLASSIFICATION 14. The landfill accepted Class III solid wastes,which are defined in Title 27 CCR Section 20164. Nonhazardous solid wastes includes municipal solid wastes, as referred to in the Code of Federal Regulations, Title 40,Part 258.2. 15. The site characteristics where the Unit is located(see Finding No. 11) do not meet the siting criteria for a new Class III landfill contained in Title 27 CCR Sections 20260(a) and(b)(1). As such, the site is not suitable for operating new Units or lateral expansions of existing Units for the discharge and containment of Class III wastes. SURFACE AND GROUND WATER CONDITIONS 16. The Water Quality Control Plan,Fourth Edition for the Sacramento River Basin and the San Joaquin River Basin(hereafter Basin Plan), designates beneficial uses, establishes water quality objectives, and contains implementation plans and policies for all waters of the Basin. 17. Surface drainage is toward French Camp Slough in the San Joaquin Delta Hydrologic Area (544.00) of the San Joaquin River Basin, San Joaquin Hydrologic Basin Planning Area Map, RWQCB, Central Valley Region(1986). 18. The landfill is on the floor of the San Joaquin Valley near the San Joaquin River Delta. The designated beneficial uses of San Joaquin Delta, as specified in the Basin Plan, are municipal and domestic supply, agricultural supply, industrial service,process, and power supply, water contact and non-contact water recreation, warm fresh water habitat,preservation of rare, threatened and endangered species, and groundwater recharge. 19. The first encountered groundwater is about 15 to 30 feet below the native ground surface. Groundwater elevations range from-8 feet MSL to -12 feet MSL. The groundwater is unconfined. The depth to groundwater fluctuates seasonally as much as 4 feet. 20. The bottom of the landfill is below the seasonal high groundwater level. Therefore, the groundwater rises into the bottom of the waste. 21. Monitoring data indicates background groundwater quality has an electrical conductivity (EC)ranging between 600 and 1,000 micromhos/cm,with total dissolved solids (TDS) ranging between 160 and 600 mg/l. 22. The direction of groundwater flow is toward the east. The average groundwater gradient is approximately 0.005 feet per foot. The average groundwater velocity is 180 feet per year.