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PUBLIC HEALTH SERVICES <br /> SAN JOAQUIN COUNTY Q <br /> N: < <br /> JOGI KHANNA M.D.,M.P.H. <br /> Health Officer <br /> P.O. Box 2009 0 (1601 East Hazelton Avenue) 0 Stockton, Califo[nia 95201 <br /> (209) 468-3400 , n /7 <br /> CHEM RISK <br /> 100 N FIRST ST STE 200 MAR 1 1 1993 <br /> BURBANK CA 91502 <br /> RE: Santa Fe RR Company SITE CODE: 1193 <br /> 1033 E. Scotts Ave. <br /> Stockton, CA 95205 <br /> San Joaquin County Public Health Services, Environmental Health <br /> Division (PHS/EHD) found Chem Risk' s presentation to our <br /> "Technical Review Committee" and the Atchison, Topeka, and <br /> Santa Fe representatives to be very interesting and informative. <br /> As you know, PHS/EHD has not given a site closure/certification <br /> based on "Human Health Risk Assessment" . A concern of not only <br /> PHS/EHD but the Central Valley Regional Water Control Board is <br /> the protection of groundwater quality and its actual and <br /> potential beneficial uses. <br /> ERM West, Inc. prepared a "Final Assessment Report" dated March <br /> 1991. In that report, it indicates soil containing petroleum <br /> hydrocarbon are present at 35 feet below ground surface and <br /> monitoring wells SFW-1, SFW-2 , and SFW-3 also contain petroleum <br /> hydrocarbons. The Atchison, Topeka and Santa Fe Railway Company <br /> has been instructed to do further sampling and analyses to <br /> determine current groundwater quality (see letter attached) . <br /> Until this information and a report from Chem Risk for the <br /> sampling performed December 16, 1992 is reviewed by this office <br /> no decision on closure utilizing "risk assessment" can be made. <br /> If you have any further questions regarding this matter, contact <br /> Harlin Knoll, Senior RENS, at (209) 468-3442 . <br /> Jogi Khanna, M.D. , M.P.H. <br /> Health Off <br /> //aurie A. Cotulla, REHS, Program Manager <br /> //'Environmental Health Division <br /> LAC/HK: lb <br /> C: Santa Fe RR Company <br /> c: Del Monte <br /> A Division of Sen Jmquin County Hca1N(are Servica �� <br />