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CE <br /> T ET <br /> CONDOR EARTH TECHNOLOGIES INC. pl <br /> June 17, 1999 21663 Brian Lane <br /> P.O. Box 3905 <br /> Mr. Joseph Mello Sonora, CA 95370 <br /> )532-0361 <br /> Associate Engineering Geologist FAX 532-0773 <br /> 3443 Routier Road, Suite A <br /> Sacramento CA 95827-3015 <br /> INTERIUM REPORT, ALTERNATIVE METHOD FOR TREATMENT FOR GROUNDWATER, <br /> TRIPLE E PRODUCE, SAN JOAQUIN COUNTY <br /> By letter on 30 March 1999, the Board approved Triple E's 12 March 1999 Amendment to Technical <br /> Report: Alternate Method for Treatment of Groundwater (amendment). Alternate 5, as described in the <br /> amendment, extracts groundwater at the present rate and diverts as much flow as reasonably possible to <br /> the water treatment plant before applying it to the apricot orchard spray field. The provisions of <br /> Alternative 5 are in addition to those already contained in WDR 96-118. <br /> The Monitoring and Reporting Program (MRP) of WDR 96-118 required monitoring of the treated <br /> groundwater from the discharge side of the air stripping column (treatment plant) and prior to application <br /> to the apricot orchard spray field. The MRP calls for weekly monitoring during the first month of <br /> operation and monthly thereafter. Monitoring includes Flow (gpd), pH, Specific Conductivity (EC), and <br /> Total Trihalomethanes (THMs). <br /> Treatment of groundwater began on 10 May 1999. The weekly sampling has been completed. On behalf <br /> of Triple E Produce, interim results for Total Trihalomethanes (THMs) and Chloroform are reported <br /> below. <br /> Analyte 5/12/99 5/20/99 5/28/99 6/4/99 <br /> THM (ug/L) ND ND ND ND <br /> Chloroform (ug.L) ND ND ND ND <br /> Analysis was done by GeoAnalytical Laboratoies, Modesto, California. <br /> A complete report will be included in the Second Quarter 1999 Groundwater Monitoring Report which <br /> will be prepared in July. <br /> Sincerely, <br /> ArJ *Ha� r <br /> Senior Hydrogeologist <br /> cc: Mike Campos <br /> Tom Guido <br /> Robert Dixon <br /> Mike Infurna <br /> P:\0809\COR\ALT5 Interim Report.doc <br /> ENVIRONMENTAL 0 GEOLOGICAL ENGINEERING GEOTECHNICAL <br />