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INTRODUCTION <br /> General <br /> This First semester 2012 monitoring report for the North County Recycling Center and Sanitary Landfill <br /> (NCRC&SL) is submitted in compliance with Waste Discharge Requirements (WDR) Order No. R5- <br /> 2010-0016. This Order was issued by the California Regional Water Quality Control Board, Central <br /> Valley Region, on January 29, 2010. <br /> The NCRC&SL is located at 17720 East Harney Lane, approximately nine miles east of Lodi (Figure 1). <br /> Land uses within 1,000 feet of the facility are primarily agricultural and livestock grazing. The average <br /> precipitation near the landfill is 17.5 inches per year. <br /> The NCRC&SL is a single solid waste management unit, designated Class III, accepting non-hazardous <br /> municipal solid waste and inert waste, as defined in §20164 of Title 27. The site is 185 acres in area, <br /> comprised of lined modules, each constructed on an as-needed basis. The total capacity of the landfill is <br /> 16.2 million cubic yards. The landfill is expected to close no sooner than 2032, based on current <br /> disposal rates and current capacity. The current active fill area is Module 4 (Figure 2), with monthly of <br /> waste discharge as follows: <br /> TABLE 1 <br /> First Semester 2012 Monthly Refuse Disposal <br /> 40 North County Recycling Center And SanitaryLandfill <br /> MONTH REFUSE DISPOSAL <br /> (TONS) <br /> January 10,325.80 <br /> February 9,930.40 <br /> March 11,181.40 <br /> April 11,881.40 <br /> May 12,154.60 <br /> June 11,596.60 <br /> Geology <br /> The sediments underlying the Unit consist of inter-bedded sands, silts and clays with occasional gravelly <br /> layers. The measured hydraulic conductivity of the unsaturated zone soils underlying the Unit is <br /> between 1 x 10"4 and 2 x 10"7 centimeters/second. <br /> The first encountered groundwater is 145 to 157 feet below ground surface. Groundwater elevations <br /> range from-30 feet-42 National Geodetic Vertical Datum(NGVD), fluctuating seasonally <br /> approximately 6 feet. The groundwater is unconfined. <br /> North County RC&SL Public Works/Solid Waste <br /> 15`Semester 2012 Groundwater Monitoring 1 County of San Joaquin—July 26,2012 <br />