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PUBtC <br /> HEALTH SEVICES <br /> SAN JOAQUIN COUNTY <br /> JOGI KHANNA M.D.,M.P.H. y, <br /> Health Officer <br /> P.O. Box 2009 (1601 East Hazelton Avenue) Stockton, California 95201 cQ�fFop`'�P <br /> APR 3 M1 (209) 468-3400 <br /> MICHAEL D. LATOURETTE � / U U <br /> ORCHARD SUPPLY HARDWARE <br /> P. O. BOX 49027 <br /> SAN JOSE CA 95161-9027 <br /> RE: OSH SITE CODE: 2287 <br /> 8715 W. GRANTLINE ROAD; TRACY <br /> The recent report submitted by Clayton Environmental, Inc. for Orchard Supply <br /> Hardware recommends additional soil borings be drilled in and around the recently <br /> replaced Monitoring Well 3B. The soil contamination documented during the <br /> drilling of the monitoring well 3B at depths of 4 feet and 9 feet indicated the <br /> presence of heavy petroleum products, oil and grease. The water sampling <br /> collected from the monitoring well 3B did not detect contaminates exceeding MCL's <br /> (maximum contaminate levels) . <br /> We agree that additional soil borings would benefit the overall site' s definition <br /> and help to determine the need for additional soil removal or whether long-term <br /> groundwater monitoring would best suit this site. <br /> In a telephone conversation between Clayton Environmental, Inc. and a member of <br /> my staff, various laboratory analyses were discussed which may provide for better <br /> determination of the oil and grease (i.e. , 418.1 or 5520, formerly known as 503) . <br /> The selection of the analysis should be one that would provide solubility <br /> results (Waste Extraction Test, Title 22) rather than analyses which vary in <br /> detection limits and also vary in quantitative results (both methods for oil and <br /> grease have interferences which may mask the presence of volatile <br /> constituents) . <br /> In addition, the check #53791 issued 12/10/90 for the septic and well destruction <br /> for the neighboring parcel, address 8885 W. Grantline Road, will be returned to <br /> Clayton Environmental, Inc. The amount of check #53791 exceeded the amount due. <br /> Clayton Environmental will arrange for a new check in the amount of $134.00 <br /> ($74.00 + $60.00) and return it to Public Health Services, Environmental Health <br /> Division (PHS/EHD) so that the permit activity may take place. <br /> Permit applications will be mailed to Clayton Environmental, Inc. , so that <br /> details of the proposed soil boring drilling can be returned to PHS-EHD for <br /> review prior to commencement of the field activity. Work plan specifics and the <br /> health and safety plan may be referred to in previously submitted work plan <br /> documents. <br /> if you have any questions, contact Diane Hinson, Supervising REHS, of my staff <br /> at (209) 468--3452. <br /> Jogi Khan , M.D. , M.P.H. <br /> Health f icer <br /> a ie A. Cot lla, Program Manager <br /> E viranmental Health Division <br /> RWQCB - J. Maughan <br /> Clayton Environmental, Inc. - L. Compton <br /> Inter land Corp. - Don Lewis <br /> A Division of San Joaquin County Health Care Services <br />