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i 011ti <br /> GeoSoly, LL`s <br /> Environmental and Hydrogeological Consulting ' <br /> 643 Oregon Street, Sonoma, CA 95476 <br /> Phone: (707) 996-4227 Fax: (707)991 -782; 1 : 0 7 , <br /> We Don't Just Work on Your Environmental Problems.We Solve Them! <br /> November 9, 1997 <br /> Steve Sasson <br /> Senior Environmental Health Specialist <br /> San Joaquin County, Public Health Services <br /> Environmental Health Division, Site Mitigation Unit <br /> 304 East Weber Avenue, 3rd Floor <br /> P.O. Box 388 Phone: (209) 468-3459 <br /> Stockton, CA 95201-0388 Via FAX: (209) 464-0138 <br /> Subject: SUBSURFACE ENVIRONMENTAL INVESTIGATION FOR: <br /> Ronald Nunan/Jon Jernigan for the Former UST site located at the: <br /> Town and Country Chevron. 13336 Hwy 88, Lockeford. CA-Code: 1621 <br /> Dear Mr. Sasson: <br /> The attached lab report summarizes analyses performed for composite soil samples <br /> collected from five-55 gallon drums of soil cuttings and one-55 gallon drum for <br /> rinseate water generated during the field investigation for the aforementioned site. <br /> The soil samples were collected by excavating with a long handled spade shovel to an <br /> approximate depth of 1.5 feet into each drum in order to obtain a representative <br /> composite sample of the soil in the drum. A six-inch by two-inch brass tube was driven <br /> into the soil with a wooden mallet at three separate sample points within the drum <br /> until full. Each sample tube was capped at each end with plastic caps, taped with duct <br /> tape, and inserted into plastic Zip-loc bags. for analysis for TPHg/BTEX/MTBE. The <br /> water sample was collected from drum # D-W-2 by lowering a 2-inch steel bailer to <br /> the bottom of the drum and then placing the extracted water into 40 ml VOAs with a <br /> preservative. All samples were placed on ice at 4 degrees centigrade, for transport to <br /> a state certified laboratory. <br /> TPHg concentrations were 10 ppm, ND, 33 ppm, ND, and 5.9 ppm for drums #D-1, D- <br /> 3, D-4, D-5, and D-6 respectively. Analysis of the water samples identified 250 ppb <br /> TPHg. The contents of the six drums will be transported to their appropriate le al <br /> points of disposal depending upon Cour classification of this waste, immediately. <br /> Also, we would like the site considered for closure according to the rationale <br /> presented in the subsurface investigation. <br /> GFD� <br /> z <br /> ely, ��N J. Glin J. Gold n CERTIFIED <br /> * HYDRO OLOWST {Y <br /> CEO/GeoSoly, LLC Q <br /> Registered Geologist No. 5557tt►�, NO1 466 ti <br /> Certified Hydrogeologist No. 466 q�; <br /> OFC <br />