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Quik Stop Station No 076 April 28, 2004 <br /> Stockton, California Quarterly Groundwater Monitoring Report <br /> . 1,2-dichloroethane (DCA) and 1,2-dibromoethane (EDB) by Environmental Protection <br /> Agency (EPA) Method 8260B <br /> Groundwater Monitoring Results <br /> The depth-to-groundwater was measured at 66 24 feet from the TOC Groundwater <br /> analytical results are summarized in Table 1 The groundwater analytical report is <br /> contained in Attachment C <br /> GeoTracker Electronic Data Deliverables <br /> The GeoTracker analytical electronic data deliverables (EDDs) for this project has not <br /> been uploaded because the site has not yet been approved by GeoTracker <br /> Conclusions and Recommendations <br /> The groundwater analytical results for this quarterly monitoring event appear to be <br /> anomalous relative to the sample collected on July 11, 2003 from the newly-installed <br /> monitoring well Horizon recommends continued quarterly monitoring to confirm or <br /> disprove the first quarter 2004 groundwater analytical data <br /> Report Distribution <br /> • We recommend a copy is re of this ort be for-warded to <br /> p r <br /> Ms Vicki McCartney <br /> San Joaquin County Environmental Health Department <br /> 304 East Weber Avenue, Third Floor <br /> P O Box 388 <br /> Stockton, California 95201-0388 <br /> Mr James Barton <br /> California Regional Water Quality Control Board <br /> Central Valley Region <br /> 11020 Sun Center Drive, #200 <br /> Rancho Cordova, California 95670 <br /> 7076gmrQ104 doc <br /> Projecl No 7076 41 2 HORIZON ENVIRONMENTAL INC <br />