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! <br /> 2 <br /> ,! 2.0 QUARTERLY WELL PUMPING <br /> 1 As agreed upon with the San Joaquin County Public Health Services (SJCPHS), <br /> groundwater was pumped out of Monitoring Well MW-5 for approximately 3 hours on <br /> ! a quarterly basis as an interim remedial measure (RESNA, November 1991 ). However, <br /> laboratory results have indicated that since November 1993, BTEX constituents have <br /> ' not been detected and TPH-G has only been detected twice at concentrations below <br /> 60 parts per billion (ppb) (August 1994, 53 ppb; December 1994, 56 ppb). Because <br /> 1 of these results, the SJCPHS agreed to a discontinuation of quarterly pumping of <br /> Monitoring Well MW-5 (Smith Environmental, August 22, 1995). <br /> ! <br /> i <br /> 1 <br /> 1 <br /> l <br /> 1 <br /> 1 <br /> MV1w;1114-27313-qtr,,p1'Nov 7,1161 S H <br />