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PUBLIC HEALTH SERVICES ! <br /> SAN JOAQUIN COUNTY ?. <br /> a: < <br /> JOGI KHANNA M.D,N.P.H. <br /> Heakh Officer P <br /> P.O. Box 2009 e (1601 East Hazelton Avenue) 0 Brockton, California 95201 <br /> C4CI FOR~` <br /> (209) 468-3400 <br /> KEN GILLIES <br /> VICE PRESIDENT <br /> P O BOX 8303 1 O'.7 2 21993 <br /> STOCKTON CA 95206 <br /> RE: 3931 NEWTON RD SITE CODE: 1703 <br /> GILLIES TRUCKING <br /> San Joaquin County Health Services, Environmental Health Division (PHS/EHD) has reviewed activities to <br /> date at the above referenced site and the site was reviewed by the Technical Review Committee on October <br /> 20, 1993. <br /> It was recommended by the committee that two (2) more monitoring wells be constructed near the former <br /> excavation. Soil samples should be collected and analysed every five (5) feet. Once there are three (3) <br /> monitoring wells at the site the site specific gradient can be determined. <br /> In addition quarterly sampling and analysis of the groundwater from these wells must be done. This <br /> information should by submitted in a quarterly report to PHS/EHD and Central Valley Regional Water <br /> Quality Control Board pursuant to Section 2652(d)of the Underground Storage Tank Regulations (California <br /> Code of Regulations, Title 23, Chapter 16). <br /> It was also recommended by the committee that soil data should be gathered and an estimated mass volume <br /> of remaining contaminated soil should be calculated and reported to PHS/EHD. This estimate of mass volume <br /> of remaining contaminated soil will be used as a factor in determining the future threat to groundwater of <br /> contaminants leaching through the soil. <br /> Please submit a workplan for installation of the additional wells by January 1, 1994. <br /> If you have any questions, please contact Michael Collins, REHS, of my staff at (209) 468-0338. <br /> Jogi Khanna, M.D., M.P.H. <br /> Health Officer <br /> Donna Heran, REHhhS Program Manager <br /> Environmental Health Division <br /> DH/MC <br /> c CVRWQCB - Elizabeth Thayer <br /> c: SWRCB, Clean Up Fund; Attn: T. Okamoto <br /> A Division of San jwgwn County Hcelth fete Se Cm 10 <br />