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Ceologicat?rechgics lac. <br /> 2741 River Road <br /> Modesto,California 95351 <br /> (209)538-6424/Fax#538-5852 <br /> 1 <br /> ' REPORT <br /> ' Groundwater Monitoring <br /> 4" Quarter 2001 <br /> Valley Wholesale Drug Co., Inc. <br /> 1401 W. Fremont Street <br /> Stockton, CA <br /> Project No. 989.2 <br /> January 21, 2002 <br /> EXECUTIVE SUMMARY <br /> ' This report summarizes the 4"' Quarter 2001 groundwater monitoring work that took place <br /> at Valley Wholesale Drug Company on December 11, 2001. <br /> ' The average groundwater elevation fell 0.29 feet from the September 2001 monitoring <br /> event. Groundwater flow was north northwesterly with a slope of 0.0049 ft/ft. <br /> Groundwater flow direction and slope have remained consistent since August of 1995. <br /> Laboratory analysis of the groundwater samples collected during the monitoring event show <br /> the presence of moderate to low levels of BTEX present in wells MW-I and MW-4. TPH- <br /> gasoline was present in MW-1, MW-3 and MW-4. Low levels of xylene and ethyl benzene <br /> were present in MW-3. MTBE was present in monitoring wells MW-4, MW-5 and MW-6. <br /> BACKGROUND <br /> The site is located at 1401 W. Fremont Street, Stockton, California. It consists of <br /> approximately 0.26 acres: Assessor's parcel No. 135-25-31. Prior work on the property <br /> includes: <br /> I <br />