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r 'v I <br /> T. PUSALT" <br /> TY <br /> SAN JOAQUINI�COUN <br /> JOGi KHANNA M.D.,M.P.H. <br /> Health 04icer I+ c+F b R <br /> P.O. Box 2009 •.(1601 East Hazelton Avenue) StocktonCalifornia 95201 <br /> (209) 46,8-3400 <br /> July 6, 1989 <br /> Ford Construction Inc. /Jim Thorpe Oil ` <br /> P.O. Box 357 F '' <br /> Y <br /> Lodi, CA 95241 <br /> RE: Soil Excavation Workplan <br /> 1 W. Turner Road; Lodi <br /> We have attempted to review the report submitted for the above referenced <br /> facility. Our review is somewhat hindered due to the lack of; adequately <br /> presented material. <br /> It is difficult to ascertain whether our concerns expressed in the letter ' <br /> dated August 2, 1988, have been addressed; specifically, the c,ontaminatian at <br /> approximately 40 feet at borehole #4.I1� No detailed site maps were�presentedta <br /> illustrate the excavation that tools place at the site. The May �3, 19$9 <br /> report indicates composite samples from the bottom of the excavation and <br /> composite grab water samples were tak`6n. This can only be construed as a ' <br /> screening mechanism as discrete sampl!�4ng at pre-determined and pre-approved- . <br /> sampling points is recommended. s <br /> We do recommend additional samplingtake place; however, due .to the conditions- <br /> of the open excavation, additional sampling at this time may not ee feasible.:1 <br /> A sampling plan should be presented too San Joaquin County Environmental Health <br /> and to the Regional Water Quality Control Board for. review prior to any <br /> additional sampling activities at the site. <br /> In addition, quarterly sampling of tte existing monitoring wells-'and �monthly w <br /> measurements should take place immediately to accurately determine groundwater <br /> dillAugust 2, 1988, expressed concern that the <br /> gradient. Our original letter date " <br /> gradient had not been adequately demonstrated. To date, this has not been. <br /> addressed. <br /> Item 4 in the May 23, 1989 report suggests plans for in-situ. bioremediation. <br /> Considering the lack of data at thisl�time, it is premature to propose a soil. <br /> remediation plan. This proposal of bioremediation must haveiconcurrent review <br /> and comments from the -Department of Health Services, Alternative Technology`. <br /> and such comments should be submitted to San Joaquin County Envirorsmental;;;' <br /> Health upon DHS approval. . <br /> 1.3 <br /> H. <br /> I <br /> 'f <br /> A 1)ivisi0n 0 I San foagnin Cotjnry Health Care Services <br /> - III !� �� <br />