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4„ <br /> (OkTc <br /> A S S O C i ,4 7 E 5 1 N C <br /> SELF-MONITORING RESULTS <br /> From the date of its startup, December 20, 2002, through August 26, 2004, the groundwater <br /> treatment system had an average flowrate of 0 52 gallons per minute (gpm) and 748 gallons per <br /> day (gpd) and a total discharge of 332,654 gallons During the reporting period for August 2004, <br /> the groundwater treatment system had an average flowrate of 0 40 gpm and 582 gpd and a <br /> discharge of 13,586 gallons The LEL did not exceed 10% during the August 2004 monitoring <br /> period <br /> The final treated groundwater sample (Effluent) collected on August 26, 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 /> August 26, 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 /> Drew Van Allen <br /> Senior Project Manager <br /> w fF :fSi{ NfiJ, <br /> IJe Hornsey, P E <br /> CA Registered Civil Engineer No 47410 <br /> i <br /> Y 4ais✓ <br /> cc Mr and Mrs Raymond Fanner { f <br /> Mr Jeff Wong SJCEHD U, -Z'-'-'s <br /> t.Gam. F3P <br /> • <br /> s%625961reportslwaterdischarge107_04 doc 2 <br />