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ENVIRONMENTAL HEALTH DEPARTMENT <br /> oPSAN JOAQUIN COUNTY <br /> .0 <br /> �•._ f • G Unit Supervisors <br /> Donna K.Heran,R.E.H.S. Carl Borgman,R.E.H.S. <br /> 304 East Weber Avenue, Third Floor <br /> Director Mike Huggins,R.E.H.S.,R.D.I. <br /> L1yClti. Al Olsen,R.E.H.S. Stockton, California 95202-2708 Douglas W.Wilson,R.E.H.S. <br /> • c... �P• Program Manager Telephone: (209) 468-3420 Margaret Lagorio,R.E.H.S. <br /> Laurie A.Cotulla,R.E.H.S. o}�elellon,R.E.H.S. <br /> Program Manager Fax: (209) 464-0138 SEP r ellos,R.E.H.S. <br /> LODI CITY CENTER 12 LLC JOSEPH K NEWFIELD <br /> C/O ANTHONY BARKETT 1900 LOWER SACRAMENTO RD <br /> 2800 MARCH LANE SUITE 350 WOODBRIDGE CA 95258 <br /> STOCKTON CA 95219 <br /> RE: Lodi Theater Project SITE CODE: 1371 <br /> 107 School Street <br /> Lodi CA 95240 <br /> San Joaquin County Environmental Health Department (SJC/EHD) has reviewed "Soil <br /> Vapor Extraction Results and Modifications" (document) dated September 14, 2004 that <br /> was submitted on your behalf by Advanced GeoEnvironmental, Inc. (AGE) and has the <br /> following comments. <br /> In the document:AGE reports that the contaminant concentrations in the effluent air from <br /> the soil vapor extraction system operating at this site have continued to decrease over <br /> time. For the first time since operation began, reported contaminant concentrations <br /> were non-detect for all constituents analyzed at the August 2004 sampling event. AGE <br /> proposes to conduct a rebound response analysis at this time by discontinuing operation <br /> of the SVE system for a period of one month, followed by restarting the system and <br /> collecting two effluent air samples for analysis. One sample will be collected at the <br /> restart; another will be collected after 48 hours of system operation. Evaluation of the <br /> need for continued system operation will be made following receipt of analytical data <br /> from the rebound samples. AGE proposes that all required modifications to the San <br /> Joaquin Valley Air Pollution Control District Permit to Operate would be made. <br /> SJC/EHD approves this proposal to conduct a rebound analysis of the SVE system. <br /> If you have any questions please call Lori Duncan at (209) 468-0337. <br /> Donna Heran, RENS, Director - <br /> Environmental Health Department <br /> f <br /> 42C 747z <br /> Lori Duncan, Senior REHS Nuel C. Henderson, Jr., RG <br /> LOP/Site Mitigation Unit IV LOP/Site Mitigation Unit IV <br /> cc: James L.L. Barton, CVRWQC13 <br /> William Little, AGE <br />