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FOOTHILL <br /> A ENGINEERING <br /> 12793 PADDY CREEK LANE LODI, CA 96240 <br /> ! PH. 0209) 368-9381 FAX 0209) 367-1163 <br /> May 15, 2003 <br /> Harlin Knoll <br /> San Joaquin County Public Health Services Environmental Health Division <br /> 304 E Weber Ave. Third Floor <br /> Stockton, CA 95202 <br /> Subject: Sun West Liquors, 2449 W. KettIeman Lane,Lodi, CA LOP Site code: 503357 <br /> Global ID T0607700812 <br /> Dear Sir: <br /> Please find below a report on the groundwater sampling event of March 27, 2003 for Sunwest <br /> Liquors. <br /> GROUNDWATER MONITORING REPORT FOR THE FIRST QUARTER <br /> 03/27/03 <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 <br /> property. Soil samples from underneath the USTs and the dispenser piping indicated that some leaks had <br /> occurred during the life of the gasoline sales operation. Foothill Engineering did a site investigation to <br /> determine the vertical and horizontal extent of the gasoline contamination on 8/13/1998 and 8121/1998. <br /> Geomatrix installed the monitoring well GMX-I at a location+/-25 feet south ofthe UST excavation and <br /> sampled first groundwater. That analysis is attached. Geomatrix also made three soil borings (GB#1, <br /> GB#2, and GB#3) with both soil samples and groundwater samples extracted (see attached map for <br /> location). All samples on GB#1, GB#2, and GB#3 were non-detect for all compounds analyzed. <br /> The work plan of 5/24/99 called for the installation of three soil borings to be located on the Sun West <br /> Liquor property and the possible installation of a fourth soil boring on the south side of Kettleman Lane. <br /> Soil samples were to be extracted at predetermined depths for laboratory analysis. A monitoring well <br /> to sample ground water was to be constructed in each of the soil borings. <br /> Groundwater sampling quarterly events have occurred from 7/12/99 to 02126102.Laboratory data for all <br /> groundwater sampling analysis for each event is enclosed in a recap format(see attached recap). A copy <br /> of the complete Laboratory Certificate of Analysis is enclosed for only this sampling event. <br /> On January 28, 2002, ACT Inc. performed a pump test on a 15" extraction well with a 6"PVC casing. <br /> The report for this pump test has been supplied as part of a Final Remedial Plan. <br /> 40 <br /> Gregg Drilling installed C.PT#I to a depth of 90 feet with soil and groundwater sampling to a depth of <br /> 1 <br />