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Lodi Food and Liquor <br /> Update Letter <br /> Page 2 <br /> Soil from the boring was examined in the field and visually logged based on the <br /> Unified Soil Classification System. (The boring log is enclosed) . No odors or soil <br /> discolorations were noted in the soil cuttings from the hole. At the completion of the <br /> field work, the boring was backfilled with neat cement. <br /> To prevent cross-contamination between samples, all sampling equipment was cleaned <br /> by washing with trisodium phosphate (TSP) , rinsing with water and then rinsing <br /> again with distilled water. <br /> Laboratory Results <br /> Three of the four soil samples collected were analyzed by Precision Environmental <br /> Laboratories for TPH-G, using EPA method 8015, and for BTEX, using EPA method <br /> 8020. The fourth soil sample (42.5 to 43 feet) was held by the laboratory pending <br /> results of the first three analyses. The lab results for the three samples show no <br /> detectable levels of either TPH-G or BTEX. Copies of the chemical analyses done are <br /> included with this letter. <br /> Conclusions <br /> CTE's additional field work at the Lodi Food and Liquor found no field indications of <br /> petroleum hydrocarbon contamination in B-8. Laboratory analyses indicate non- <br /> detectable levels of TPH-G and BTEX in the boring as well. Based upon the <br /> information obtained during the initial subsurface investigation, and the additional <br /> work completed in B-8, it is CTE's opinion that further investigative work is not <br /> warranted for the subject site at this time. A copy of this letter has been forwarded <br /> to San Joaquin County Public Health Services, Environmental Health Division. <br /> If you have any questions regarding this letter, or we can be of further service, <br /> please give us a call at (209) 551-2271. <br /> Sincerely, <br /> CONSTRUCTION TESTING & ENGINEERING, INC. - MODESTO <br /> -&U. 1, <br /> Kelly Hugie Thorpe <br /> Project Geologist <br /> KHT/cj <br /> ENV\94-5071 <br /> encl: Soil Boring Logs <br /> Laboratory Results <br /> Boring Location Figure <br />