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i <br /> 93-44-334-03'%--4 v <br /> Mr. Sheldon Satnick <br /> CIVICBANK OF COMMERCE <br /> January 12, 1994 <br /> Page 2 <br /> SAMPLE COLLECTION <br /> Four excavations were made in the areas from which soil samples SW-3, <br /> SW-4, and SW-5 were originally collected from a depth of 1 foot below <br /> grade. These areas were designated Area 3, Area 4, and Area 5, respectively <br /> and were excavated by Henkels and McCoy under the direction of <br /> Converse and the observation of Ms. Mary Meays of the San Joaquin <br /> County Department of Environmental Health (SJCDEH). Each of the soil <br /> samples was collected from the base of the excavation at a depth of <br /> approximately 4-1/2 feet below grade. Two soil samples were collected <br /> from Area 5 in two separate excavations. The locations of the soil samples <br /> with respect to the nearby features (i.e. curbs, fences, etc.) are shown on <br /> Drawing 2. <br /> The soil samples were collected in accordance with the work plan for this <br /> phase of work. The work plan was submitted by Converse to the SJCDEH <br /> in the form of a Request for Authorization for a Limited Phase 3 <br /> Environmental Site Assessment, dated August 31, 1993. This work plan <br /> was verbally approved by Ms. Mary Means of the SJCDEH on December 27, <br /> 1993. <br /> ANALYSES AND LABORATORY RESULTS <br /> Each of the soil samples collected Nvas analyzed for total petroleum <br /> hydrocarbons quantified against diesel and motor oil (TPH-d and TPH-mo, <br /> respectively). In addition, the two soil samples collected from Area 5 were <br /> analyzed for benzene, toluene, ethylbenzene, and total xylenes (BTEX); for <br /> volatile organic hydrocarbons (VOH); and for cadmium, chromium, lead, <br /> nickel, and zinc (Cd, Cr, Pb, Ni, and Zn, respectively). TPH-d and TPH-mo <br /> analyses were performed using EPA method 8015 - modified. BTEX <br /> analyses were performed using EPA method 8020. VOH analyses were <br /> performed using EPA method 8010. Cd, Cr, Ni, and Zn analyses were <br /> performed using EPA method 6010. Pb analyses were performed using <br /> EPA method 7421. <br /> No TPH-d or TPH-mo were reported in any of the soil samples collected <br /> above the laboratory method detection limit. No BTEX or VOH were <br /> Converse Environmental West CVC fi,\\'K OF CM RC PSA 1'I.OJ\TRACY PH 3\LTR RPT PH 3 <br />