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v " <br /> %TC <br /> . A S S O C I A T E S I N C <br /> SELF-MONITORING RESULTS <br /> From the date of its startup, December 20, 2002, through September 27, 2004, the groundwater <br /> treatment system had an average flowrate of 0 52 gallons per mmute (gpm) and 743 gallons per <br /> day (gpd) and a total discharge of 337,095 gallons During the reporting period for September <br /> 2004, the groundwater treatment system had an average flowrate of 0 34 gpm and 487 gpd and a <br /> discharge of 4,441 gallons The LEL did not exceed 10% during the September 2004 monitoring <br /> period <br /> The final treated groundwater sample (Effluent) collected on September 27, 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 /> September 27, 2004 indicated that pH was within the required range Results of the monthly <br /> self-monitoring 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 /> Drew Van Allen <br /> Senior Project Manager <br /> anne Homsey, P E <br /> CA Registered Civil Engineer No 47410 , rj I os <br /> cc Mr and Mrs Raymond Farmer " <br /> Mr Jeff Wong, SJCEHD <br /> S 162596Ireportslwaterdischarge107_04 doe 2 <br />