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1 � l KAYO OIL C OMPAN Y 1221 EAST MAIN STREET CHATTAN OGA, TENNESSEE 37408 TELEPHONE 615-756-5770 July 15, 1985 Ila Boggs s Mr. Gordon Lee gg Central Valley Regional W.Q.C.B. `J JUL01 "S" Street *.3 171 1985 Sacramento, CA 95816-7090 ENVI R r LE.NTAL HEALTH RE: Investigation and Mitigation Plans for FERMIT/SERVICES Douglas - Lodi, CA Econo - Stockton, CA Fast Gas - Jackson, CA Dear Mr. Boggs: As promised, enclosed are the geotechnical reports regarding the environmental assessment for the stations referenced above. A discussion regarding the inves- tigation and clean-up actions for the Fast Gas station on Highway 12 in Lodi will be included later in this letter. The reports from I. T. Corporation reflec the results of an investigation to determine if hydrocarbon existed beneath he stations prior to the sale of the properties. Evidence of hydrocarbon was detected at each station in varying amounts. Therefore, the recommended remedial actions will be site specific. Furthermore, any remedial action will con ider the beneficial use of the resource of concern and the likelihood of degrading that use. Again, Douglas takes the position that any clean-up levels which are established will be based on econom- ically and technically sound reasons. The remaining discussion will focus on the conclusions and recommended remedial actions for each station. Also, Douglas ias acquired data independently of I. T. Corporation's reports from Fox Environmental Services Inc. which will be reflected throughout this report. DOUGLAS - LODI, CA A summary of the findings of I. T. Corporation and the supplemental data supplied by Fox Environmental Services Inc. , indicates that only MW-8 has detected free product on the groundwater. In addition, the groundwater gradient is generally from the north by northwest to the south by southeast according to the May and June calculations, i. e. towards the Douglas property. E Additional monitoring wells have been installed by Fox Environmental Services Inc. to the north, the east and the south of MW-8. These monitoring wells i (MW-10, MW-11, and MW-12) have not detected any visible signs of hydrocarbon on the groundwater as of July 14, 1985. Mr. James Miller and Ms. Laurie Cotulla of the San Joaquin County Environmental Health Division have been kept informed of these additional proceedings. Also, similar procedures as described in I. T. jCorporation's report were used to install these additional monitoring wells.