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PUBLrC HEALTH SERVICES �ut6,; <br /> SAN JOAQUIN COUNTY JOG[KHANNA M.D.,M.P.H. <br /> HealthOfficer <br /> P.O. Box 2009 • (1601 East Hazelton Avenue) • Stockton, California 95201 <br /> (209) 468-3400 <br /> VERN WILLRICH <br /> BRIDGESTONE/FIRESTONE <br /> 7857 E FLORENCE AVE STE 200 'J ©CT 1 � � . <br /> DOWNEY CA 90240 <br /> RE: 400 N. El Dorado St. SITE CODE: 2516 <br /> Stockton, CA <br /> San Joaquin County Public Health Services, Environmental Health Division (PHS/EHD) has completed <br /> the review of the file on the above referenced site and has the following comments. <br /> On November 12, 1991 overexcavation of the area previously occupied by tanks #5 and #6 was <br /> performed by Ryan-Murphy, Inc. <br /> Based upon the results from samples collected for analyses, the petroleum constituents remaining in the <br /> soil pose a potential threat to groundwater quality. It will be necessary for Bridgestone/Firestone to <br /> address the remaining soil contamination with an appropriate mitigation measure. <br /> Please be advised that it is the responsibility of this agency to ensure and maintain compliance with all <br /> applicable underground storage tank laws and regulations with our jurisdiction. Maintaining compliance <br /> with this agency is also necessary to remain eligible for reimbursement under the State Water Resources <br /> Control Board's "Underground Storage Tank Cleanup Fund Program". <br /> Pursuant to Chapter 16, Section 2652(d) of the "Underground Storage Tank Regulations" (California <br /> code of Regulations, Title 23), quarterly monitoring reports shall be submitted to PHS/EHD and the <br /> Central Valley Regional Water Quality Control Board (CVRWQCB) until the investigation and cleanup of <br /> the site is deemed adequate. <br /> Therefore, in order to maintain compliance with this agency a status report should be submitted to this <br /> office and CVRWQCB on a quarterly basis beginning immediately. <br /> At a minimum the reports should include all corrective action measures taken to date, depth to <br /> groundwater gradient direction, and the status of any possible pending work for the current quarter and <br /> for the upcoming quarters. <br /> Should you need further information or clarification, contact Harlin Knoll, Senior RENS, of my staff at <br /> (209) 468-3442. <br /> Jogi Khanna, , M.P.H. <br /> Health Off e <br /> G+,.G�j1•L f% -� � � <br /> urie A. Cotulla, RENS, Program Manager <br /> Environmental Health Division <br /> LAC/HK:lb <br /> A Division of San Joaquin County Heakh Care Services I0 <br />