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C <br />Groundwater, Vadose, and Surface Water Sampling and Analyses Quantities <br />for Estimating Postclosure Maintenance Costs <br />Type and Number of Monitoring Facilities <br />Groundwater Wells, 10 Wells at Closure <br />Vadose Stations, 20 Stations at Closure <br />Leachate Sumps, 7 Sumps at Closure <br />Surface Water, 6 Samples Per Year at Present <br />and at Closure <br />Sampling Events Per/Year <br />Analyses/Year <br />Quarterly, 40 <br />40 <br />Semi -Annually, 20 (') <br />8 (1) <br />Annual, 7 <br />7 <br />6 Samples Per Year <br />6 <br />Total 61 <br />t1I To date, no samples have been detected/recovered from the 8 existing stations. Assume Postclosure sampling 10 <br />select stations semi-annually, with sample recovery at 4 stations. Therefore there will be 8 analyses/Year <br />PCMP for NCRCSL E-5 Department of Public WorksiSolid Waste <br />OASan Joaquin CountylNCRCSL11180401PCPMPIFinal ReporAPCPMP-Rev-Jan-2010. Doc County of San Joaquin - January 7, 2010 <br />