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!11 id it Mai 23_ 1989__Page 4 of-5— Re: 1 W. Tu,-ner Road, Lodi, CA r The monitoring and sample wells installed by G.T.I. all showed no sign of ground- water contamination. Water samples can also be taken from the 3 idle industrial wells before they are permanently abandoned. The owners wish to cooperate in every manner necessary to bring this clean up to an expedient end. 4. Remediation Steps: Pians for bioremediation by use of controlled bacteria are now in the process of being finalized in dealing with the contamination on site. Since the only contaminates are diesel fuel and heavy bunker oil, this methodology will work for total soil cleanup. The soil will be placed approximately 10 to 12 inches thick on the existing concrete slab and fertilized with ammonium nitrate. The soil will be kept moist by using soaker hoses placed at regular intervals to insure max- imum bacteria growth. Bacteria will then be introduced, through this watering system. The soil will be mixed by using a disc plow and turned over at regular intervals. _. Samples will be taken for analysis by Canonie Environmental on a monthly basis and copies wi,l be made available to SJLHD. After the contaminated soil has been rendered "non-detectable" for all constituents of petroleum hydrocarbons, the soil will be used on site. 5. Laboratory that will collect samples: Canonie Environmental , Stockton, CA 983.1340. A signed "Release of Information Authorization" is attached. ENCLOSURES Reference A: Original tank removal, includes: Tank Removal Application dated December 23, 1986 Removal Application Approval dated January 16, 1987 Fire Permit dated January 22, 1987 Inspection Report dated January 23, 1987 Soil Sample Reports dated February 11 , 1987 — Reference• B: Preliminary Report Subsurface Hydrocarbon Investigation dated T-_ - -- March 16, 1988 Reference CcApplication for.Permit for Monitoring Wells dated March 17,1988