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FOOTHILL <br /> ENGINEERING <br /> 02 APR -8 pH 1: 12 12793 PADDY CREEK LANE LODl, CA 95240 <br /> PH. (209) 368-9381 FAX (209) 367-1163 <br /> Harlin Knoll March 29, 2002 <br /> San Joaquin County Public Health Services <br /> Environmental Health Division <br /> 304 E Weber Av. Third Floor <br /> Stockton, CA 95202 <br /> Subject: Sun west Liquors, 2449 W. Kettleman Lane, Lodi, CA LOP Site code: 503357 <br /> Global ID T0607700812 <br /> Dear Sir: <br /> Please find below a report on the groundwater sampling of monitoring wells for,Sunwest Liquors. <br /> GROUNDWATER MONITORING REPORT FOR THE FOURTH QUARTER <br /> 02/26/02 <br /> SUN WEST LIQUORS <br /> History <br /> On 7/10/1998 Thorpe Oil of Lodi,California removed the three gasoline USTs from the Sun West property. <br /> Soil samples from underneath the USTs and the dispenser piping indicated that some leaks had occurred <br /> during the life of the gasoline sales operation.Foothill Engineering did a site investigation to determine the <br /> vertical and hun'Lontal extent of the gasoline contamination on 8/13/1998 and 8121/1998. <br /> Geomatrix installed the monitoring well GMX-1 at a location+1-25 feet south of the UST excavation and <br /> sampled first groundwater. That analysis is attached. Geomatrix also made three soil borings(GB#1,GB#2, <br /> and GB#3)with both soil samples and groundwater samples extracted(see attached map for location).All <br /> samples on GB#1, GB#2, and GB#3 were non-detect for all compounds analyzed. <br /> The work plan of 5124199 called for the installation of three soil borings to be located on the Sun West <br /> Liquorproperty and the possible installation of fourth soil boring on the south side of Kettleman Lane.Soil <br /> samples were to be extracted at predetermined depths for laboratory analysis. A monitoring well to sample <br /> ground water was to be constructed in each of the soil borings. <br /> Groundwater sampling quarterly events have occurred from 7112199 to 02126102. Laboratory data for all <br /> groundwater sampling analysis for each event is enclosed in a recap format(see attached recap).A copy of <br /> the complete Laboratory Certificate of Analysis is enclosed for only this sampling event. - <br /> On January 28,2002,ACT Inc. preformed a pump test on a 15"extraction well with a 6" PVC casing. At <br /> the writing of this report,ACT Inc.had not completed the report on the well pump test.That report will be <br /> ' part of a future quarterly sample event reports. <br /> { <br /> 1 � <br />