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= -- HQRIZ ENVIRO.NMEN <br /> AL- INC. <br /> Specialists in Site Assessment,Remedial Testing, Design and Operation <br /> D <br /> December 15, 2005 n r D <br /> Ms. Vicki McCartney Liz i jZOQS <br /> San Joaquin County Environmental Health Department ENVlR <br /> 304 East Weber Avenue, Third Floor pEH�AINENT HEALTH <br /> Stockton, California 95002-2708 MITISEHUICES <br /> Subject: Quarterly Groundwater Monitoring Report Transmittal <br /> Fourth Quarter 2005 <br /> Quik Station No. 76 <br /> 1030 South Olive Avenue, Stockton, California- <br /> Ms. McCartney.- <br /> Horizon <br /> cCartney:Horizon Environmental Inc. (Horizon) is forwarding the enclosed Quarterly Groundwater <br /> Monitoring Report dated December 15, 2005. The report documents fourth quarter 2005 <br /> groundwater monitoring at the subject site. <br /> Horizon has addressed the items listed in'the San Joaquin County Environmental Health <br /> Department lefter dated September 15, 2005. In the order that they appear in the letter, the <br /> items have been addressed as follows: <br /> * the monitoring well MW-I sample was additionally analyzed for the five <br /> oxygenates, DCA and EDB and shall be analyzed as such next quarter; <br /> * the m6rAtoring well interval is correctly noted as 60-80 feet in Table 1; <br /> * the total depth of monitoring well MW-1 was measured at 79.94 feet during the <br /> quarterly monitoring event making redevelopment unnecessary; and <br /> • monitoring well MW-1 was surveyed to GeoTracker specifications as noted in Table <br /> 1. <br /> Please call Horizon at 916-939-2170 if you have any questions or require additional <br /> information. <br /> Sincerely, <br /> HORIZON ENVIRONMENTAL INC. <br /> - Karen P. Liptak <br /> Staff Geologist <br /> Enclosure <br /> cc: Mr. Mike Karvelot, Quik Stop Markets Inc. <br /> Mr. James Barton, Regional Water Quality Control Board-Central Valley Region <br /> 4970 Windplay Drive,#C5 • El-Dorado Hills,CA 95762 • (916)939-2170 • FAX(916)939-2172 <br /> PO.Box 5283 • Bakersfield,CA 93388 - (661)589-8389 • FAX(661)589-1456 <br />