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CK <br /> Quik Stop Station No 076 July 8, 2004 <br /> Stockton, California Quarterly Groundwater MonitoringReport <br /> eport <br /> d <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 65 42 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 analytical electronic data deliverable (EDD) is prepared by Kiff and uploaded by <br /> Horizon The groundwater well measurement file EDD for this quarterly monitoring <br /> event was prepared and uploaded by Horizon The EDD upload confirmation sheets for <br /> this quarterly event are contained in Attachment D <br /> Conclusions and Recommendations <br /> The groundwater analytical results for first quarter 2004 monitoring event appear to be <br /> anomalous relative to the sample collected on July 11, 2003 from the newly-installed <br /> monitoring well Analytical results for this quarterly monitoring event appear to be <br /> proportionally lower that the previous quarter Horizon recommends continued quarterly <br /> monitoring to confirm or disprove the first quarter 2004 groundwater analytical data <br /> Report Distribution <br /> We recommend a copy of this report be forwarded to <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 /> • <br /> 7076gmrQ204 doc <br /> Project No 7076 41 2 HORIZON ENVIRONMENTAL INC. <br />