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Al <br /> ti 1 <br /> PUBLIC HEALTH SERVfCES <br /> SAN JOAQUIN COUNTY <br /> JOGI KHANNA IKD.,XP.H. y. < <br /> Health Officer <br /> P.O. Box 2009 • (1601 East Hazelton Avrnuc) 0 Stockton,California 95201 c4�!Foat'�P <br /> (209)468-3400 <br /> - •f <br /> EDWARD GOTELLI <br /> GOTELLI TRUCKING ~ <br /> P O BOX 55103 - MAY 2 5 1993 <br /> STOCKTON CA 95205 <br /> RE: Gotelli Trucking SITE CODE: 1045 <br /> 1649 East Channel Street <br /> Stockton CA <br /> San Joaquin County Public Health Services,Environmental Health Division(PHS/EHD)has completed review <br /> of the"Preliminary Investigation and Evaluation Report"received on May 11, 1993 and prepared by Geological <br /> Audit. PHS/EHD has the following comments for your consideration. <br /> Three monitoring wells, MW1 - MW3,were installed in March 1993 to further investigate the extent of soil <br /> and/or groundwater contamination. Petroleum hydrocarbon contaminants were detected in both soil and <br /> groundwater samples collected from MW2. The report included the recommendation to continue quarterly <br /> groundwater monitoring of the existing wells. PHS/EHD concurs with this recommendation, please initiate <br /> quarterly sampling of the monitoring wells. The next quarterly monitoring event should be scheduled by June <br /> 17, 1993. <br /> The results of the previous investigation (October 1992) indicate that soil contamination extends to 50 feet <br /> below ground surface. Furthermore, the results of the most recent investigation (March 1993) indicate that <br /> groundwater contamination has occurred. The report included recommendations to begin interim soil <br /> remediation and to continue the groundwater investigation. PHS/EHD concurs with the recommendations <br /> to excavate contaminated soil to 35 feet and to install an additional monitoring well downgradient of MW2. <br /> Since the work plan will include over-excavation, please submit three work plans and executive summaries <br /> along with the next quarterly report due July 15, 1993. PHS/EHD will then initiate public participation. <br /> Negotiations should be initiated with the City of Stockton to obtain a grading permit for the over-excavation <br /> and an encroachment permit for the proposed monitoring well to be located in the City of Stockton's right-of- <br /> way. Once the City of Stockton has issued these permits, they should be submitted along with a PHS/EHD <br /> permit application and 589.00 fee. Field work may commence following issuance of a PHS/EHD permit. <br /> If you have questions, please contact Mary Meays, REHS, of my staff at (209) 468-0337. <br /> Jogi Khanna, ., M.P.H. <br /> Health OM r <br /> .zx <br /> � O <br /> de A. Cotulla, HS, Program Manager <br /> Environmental Health Division <br /> LAC/MM:lb <br /> c: Elizabeth Thayer, CVRWQCB c: Bob Marty, Geological Audit <br /> c: C and A Gotelli Estate Etal <br /> A Division of San Joaquin County Health Care Svrces <br />