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..� FOOTHILL <br /> / ENGINEERING <br /> 12793 PADDY CREEK LANE LODI. CA 95240 <br /> f PH. (209) 368-9381 FAX (209) 367-1163 <br /> Harlin Knoll April 30, 2001 <br /> San Joaquin County Public Health Services <br /> Environmental Health Division <br /> P. O. Box 388 <br /> Stockton, CA 95201 <br /> Subject: Sun West Liquors, 2449 W. Kettleman Lane, Lodi, CA LOP Site code: 503357 <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 /> 3/13/2001 <br /> SUN WEST LIQUORS <br /> History <br /> On 7/1011998 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 8/21/1998. <br /> A listing of the results of analysis of the soil samples is attached. <br /> Geomatrix installed the monitoring well GMX-1 at a location f/-25 feet south of the 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#l, GB#2, and GB#3 were non-detect for all compounds analyzed (see <br /> attached recaps of data). <br /> The work plan of 5124/99 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 to <br /> sample ground water was to be constructed in each of the soil borings. <br /> The first groundwater monitoring event to obtain samples occurred on 7/12/99. The second event <br /> occurred on 10/08/99 and the third event was on 211712000. The fourth monitoring event was completed <br /> on 8/29/2000 and this fifth sample event was on 12/2212000.The current groundwater sample event was <br /> completed on March 13, 2 00 1, and is the subject of this report. <br /> i` <br /> 1 <br />