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INTRODUCTION <br /> General <br /> This First Semester 2009 Monitoring Report for the Foothill Sanitary Landfill (FSL) is submitted <br /> in compliance with Waste Discharge Requirements (WDR) Order No. R5-2003-0020. <br /> 1 The FSL is located in eastern San Joaquin County at 6484 N. Waverly Road, four miles east of <br /> Linden, CA (Figure 1). Land uses within 1,000 feet of the facility are agricultural, primarily <br /> grazing. The vicinity receives an average of approximately 18 inches of precipitation per year. <br /> The FSL is a single Class III Waste Management Unit on an 800-acre parcel. This Unit is <br /> comprised of Module "I", Module 1, and future modules. Future modules will overlap onto other <br /> completed modules, including Module "I" until final closure of the Unit. The size of future <br /> modules will be selected in accordance with the refuse disposal rate. <br /> Waste discharged to the landfill includes commercial and household waste, construction/ <br /> demolition waste, and agricultural waste. Disposal in this semester occurred primarily over <br /> Module 1 (Figure 2). <br /> The total capacity of the landfill is approximately 102 million cubic yards. The active life of the <br /> facility is estimated to allow disposal at least until the year 2058, based on current disposal rates <br /> and capacities. The estimated service life will change if disposal rates differ significantly than <br /> those predicted. The quantity of waste placed during the reporting period is shown in Table 1. <br /> TABLE 1 <br /> First Semester 2009 Monthly Refuse Disposal <br /> Foothill Sanitary Landfill <br /> Month Refuse Disposal <br /> (Tons) <br /> January 18,034 <br /> February 16,481 <br /> March 19,834 <br /> Aril 18,513 <br /> May 18,933 <br /> June 18,891 <br /> Geology <br /> The first water bearing zone encountered is in sandy gravel at a depth of more than 200 feet. <br /> Groundwater elevations vary between approximately 46 and 61 feet MSL. Groundwater <br /> elevations fluctuate less than one foot seasonally. The groundwater is unconfined or partially <br /> confined. <br /> Foothill Sanitary Landfill 1 Department of Public Works/Solid Waste <br /> Vt Semester 2009 Groundwater Monitoring County of San Joaquin—July 31,2009 <br />