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I <br />i� <br />1 <br />become saturated. This condition has also not been observed. Therefore, we conclude that the <br />relatively small amount of leachate generated at this landfill can be returned to the refuse without <br />negative impact to the LCRS. <br />Leachate System Testing <br />Testing the leachate system consists of monitoring the pumping rate of each sump pump. <br />Leachate pumps that are operating at the rate consistent with past performance are considered to <br />be operating normally. The in-line filters at the pump intakes are replaced every one to two <br />years when a diminished flow is observed. Diminished flow is determined by the operator by <br />observing the flow meter. Exposed leachate pipes are inspected for damage/disturbance once a <br />month. <br />PARTIAL COVER — PORTION OF MODULE 3 <br />Purpose <br />Theu ose of this work p rp was to apply the Partial Cover to that portion of Module 3 which we do <br />not anticipate receiving refuse for two years in accordance with WDR Order No. R5-2002-0219, <br />Section C-8 (Facility Specifications), and which had yet to receive Partial Cover. <br />Procedure <br />Prior to placement, the cover soil was pre -moistened to near optimal moisture condition. This <br />soil was then placed over the area to receive Partial Cover (Figure 5) and compacted with tracked <br />bulldozers over the area to receive Partial Cover. After placement, the density of the soil was <br />measured by nuclear gauge by Kleinfelder, Inc., and the depth of the cover layer measured by <br />hand -auger. <br />Acceptance criteria (per the WDRs) are: <br />Minimum density: 85% of maximum (per ASTM D1557) <br />Minimum Thickness: 24 inches total soil measured perpendicular to slope <br />26 inches measured vertical <br />Note that the slopes receiving Partial Cover were steeper than 5:1 <br />Results <br />The soil cover was found to meet the minimum density and thickness requirements identified in <br />the WDRs (Figure 6). The report of the density measurements is attached. These surfaces were <br />hydroseeded in preparation for the winter. <br />North County RCSL 13 Public Works/Solid Waste <br />2nd Semester and Annual 2005 Groundwater Monitoring County of San Joaquin — January 24, 2006 <br />