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Abdelwahed Facility October 14, 2004 <br /> t Stockton California Quarterly Groundwater Monitoring Repo <br /> Results of Groundwater Monitoring <br /> Depth-to-groundwater measurements were subtracted from the surveyed TOC elevations to <br /> calculate groundwater elevations Groundwater elevation data, summarized to Table 1, were <br /> used to construct a groundwater contour map as shown on Figure 2 Groundwater elevation <br /> data indicate flow was generally eastward under a gradient of approximately 0 002 <br /> Analytical data are summarized in Table I Concentration data for TPHg, benzene and DCA <br /> are plotted on a site map as shown on Figure 3 The analytical report is contained to <br /> Attachment C <br /> GeoTracker Electronic Data Deliverables <br /> The analytical electronic data deliverable (EDD) is uploaded by Kiff The groundwater well <br /> measurement EDD (GEO_WELL) for this quarterly monitoring event was uploaded by <br /> Horizon The GEO_WELL upload confirmation sheet is contained in Attachment D <br /> Conclusion <br /> In a letter dated August 9, 2004, the San Joaquin County Environmental Health Department <br /> requested a work plan to evaluate the vertical and lateral extent of petroleum hydrocarbons In <br /> soil and groundwater The work plan is being developed by Horizon and shall be submitted <br /> by October 15, 2004 <br /> Distribution <br /> A copy of this report should be forwarded to <br /> Mr Jeff Wong <br /> San Joaquin County Environmental Health Department <br /> 304 East Weber Avenue, Third Floor <br /> Stockton, California 95202-2708 <br /> Mr James L L Barton <br /> Regional Water Quality Control Board <br /> Central Valley Region <br /> 11020 Sun Center Drive, #200 <br /> Rancho Cordova, California 95670 <br /> Sayed and Zakia Abdelwahed <br /> P O Box 182 <br /> Stockton, California 95201 <br /> t�• <br /> 792gmr Q304 doc <br /> Project No 1792 41 2 HORIZON ENVIRONMENTAL INC. <br />