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Beacon Station No. 3641 January 25, 2006 <br /> Stockton, California Quarterly Groundwater Monitoring/Rernediation System Report <br /> r: The average influent flow during the third quarter was approximately 104 standard cubic feet <br /> per minute. Approximately 1,3 56 pounds of TPHg and 6.4 pounds of benzene were removed by <br /> the VES during the fourth quarter. As of the end of the fourth quarter reporting period, <br /> approximately 7,799 pounds of TPHg and 69 pounds of benzene were removed by the VES <br /> through. <br /> GeoTracker Electronic Data Deliverables <br /> The analytical electronic data deliverable (EDD) was prepared and uploaded by Kif£ The <br /> groundwater level EDD (GEO_WELL) was prepared and uploaded by Horizon. The <br /> GEO_WELL upload confirmation sheet for this quarter and the Quarterly Monitoring Report <br /> EDD (GEO_REPORT) upload confirmation sheet for the previous quarter are contained in <br /> Attachment D. <br /> Recommendations <br /> As part of an additional subsurface investigation, Horizon installed off-site groundwater <br /> monitoring wells MW-9 and MW-10 and on-site monitoring wells MW-11, MW-12 and <br /> MW-13 during lburth quarter 2004. The report of the additional subsurface investigation is <br /> in preparation. Horizon recommends continued quarterly monitoring during the ongoing <br /> investigation and remediation phases of the project. <br /> Distribution <br /> A copy of this report should be fonvarded to: <br /> Mr. Michael Infurna Jr., Senior R. E. H. S. <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 /> Mr. Eric Schneider <br /> Auburndale Properties Inc. <br /> 2951 28th Street, Suite 2050 <br /> Santa Monica, California 90405 <br /> 641 gmrQ405.doc <br /> Project leo. 1641.48 3 HORIZON ENVIRONMENTAL INC. <br />