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CVVATC <br /> A S S O C I A T E S I N C <br /> t <br /> SELF-MONITORING RESULTS <br /> From the date of its startup, December 20, 2002, through June 28, 2004, the groundwater <br /> treatment system had an average flowrate of 0 53 gallons per minute (gpm) and 760 gallons per <br /> day (gpd) and a total discharge of 298,756 gallons During the reporting period for June 2004, <br /> the groundwater treatment system had an average flowrate of 0 60 gpm and 860 gpd and a <br /> discharge of 15,665 gallons The LEL did not exceed 10% during the June 2004 monitoring <br /> period <br /> The final treated groundwater sample (Effluent) collected on June 28, 2004, contained no <br /> detectable concentrations of total petroleum hydrocarbons, TPHg, BTEX, MTBE, ETBE, TBA, <br /> TAME, DIPE, 1,2-DCA, or EDB The final treated groundwater sample (Effluent) collected on <br /> June 28, 2004 indicated that pH was within the required range Results of the monthly self- <br /> monitoring <br /> elfmonitoring program are summarized in Table 1 and analytical data is attached <br /> If you require any additional information, please contact our office at (209) 579-2221 <br /> Respectfully submitted, <br /> ATC Associates Inc <br /> 4 <br /> Drew Van Allen <br /> Senior Project Manager <br /> Jeanne Homsey, P E <br /> CA Registered Civil Engineer No 47410 <br /> cc Mr and Mrs Raymond Farmer <br /> Mr Jeff Wong, SJCEHD <br /> s 1625961reportslwaterdischarge106_44 doc 2 <br />