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intense storm events. When flows in the South Paddy Creek are high, water flows <br /> from the creek over a weir into the basin. The basin is equipped with an outflow <br /> pump that drains the basin to South Paddy Creek after the storm event has <br /> passed. The pump is designed to operate on a 15-minute cycle when sufficient <br /> water is in the basin and flows are low enough in the creek such that they are not <br /> flowing over the weir to the basin. <br /> 3.0 POSTCLOSURE LAND USE <br /> Postclosure land use includes undeveloped and non-irrigated open space and <br /> grazing. <br /> 4.0 RESPONSIBILITY FOR POSTCLOSURE MAINTENANCE <br /> San Joaquin County Public Works Department, Solid Waste Division (SWD) is <br /> responsible for all aspects of postclosure maintenance for the Harney Lane <br /> Sanitary Landfill. SWD will answer any questions pertaining to postclosure <br /> maintenance of HLSL. Reports of the postclosure maintenance can be obtained <br /> at: <br /> San Joaquin County Public Works Department <br /> Solid Waste Division <br /> 1810 East Hazelton Avenue <br /> Stockton, California 95205 <br /> Phone: (209) 468-3066 <br /> 5.0 MONITORING <br /> The HLSL will be monitored, inspected and maintained in compliance with <br /> applicable regulations during postclosure maintenance period in CCR Title 27, <br /> Section 21180. <br /> 5.1 MONITORING AND CONTROL SYSTEMS <br /> 5.1.A Ground Water <br /> 5.1 .A.1 Monitoring Wells <br /> The ground water at HLSL is monitored with a network of <br /> groundwater wells that consists of up-gradient well MW-1 and <br /> down-gradient wells MW-2, MW-3, and MW-4 (Figure 2). All wells <br /> Postclosure Maintenance Plan San Joaquin County <br /> Harney Lane Sanitary Landfill 3 Department of Public Works <br /> Revised July 30,2009 Solid Waste Division <br />