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San Joaquin County DIRECTOR <br /> Donna Horan,REHS <br /> PQU,N Environmental Health Department <br /> ASSISTANT DIRECTOR <br /> 600 East Main Street Laurie Cotulla, REHS <br /> Stockton, California 95202-3029 PROGRAM COORDINATORS <br /> Carl Borgman, REHS <br /> •.,� �� <br /> cQtfkour'�P Website: www.sjgov.org/ehd Mike Huggins, <br /> l <br /> Margaret Lagoro, REHS <br /> Phone: (209)468-3420 Robert McClellon, REHS <br /> Fax: (209) 464-0138 Jeff Carruesco,REHS,RDI <br /> Kasey Foley, REHS <br /> APR 2 5 2008 <br /> Ray Baglietto & Frank Rauzi <br /> Tuleburg Warehouse Ab Nawar <br /> 301 South Aurora Street 8200 North Highway 99 <br /> Stockton, CA 95203 Stockton, CA 95212 <br /> Subject: Speedy Food Mart SITE CODE: 1612 <br /> 8200 North Highway 99 <br /> Stockton, CA 95212 <br /> The San Joaquin County Environmental Health Department (EHD) has reviewed <br /> Quarterly Groundwater Monitoring, Groundwater Treatment System Operation and <br /> Effectiveness, Soil Vapor Extraction Rebound Test and Additional Site Work Report - <br /> January through March 2008 (Report), dated April 7, 2008, submitted on your behalf by <br /> Ground Zero Analysis, Inc., (Ground Zero) and has the following comments. <br /> In order to help save on site investigative costs, Ground Zero recommends placing all <br /> domestic wells currently being sampled as part of the investigation on an annual <br /> monitoring and sampling schedule. All domestic wells have been non-detect`,for all <br /> analyzed constituents for over four years. The EHD agrees with this recommendation. <br /> Ground Zero further recommends continued operation of the soil vapor extraction system <br /> (VES). The rebound test indicated up to 2.25 pounds of hydrocarbons per day could still <br /> be removed by the system. While in operation system performance will be monitored, <br /> monthly; if the extracted mass goes below 0.8 pounds per day system operation will be <br /> discontinued. The EHD agrees with the recommendation to continue the VES operation. <br /> If you have any questions please call Lori Duncan at (209) 468-0337. <br /> Sincerely, <br /> Lori Duncan, REHS Margaret Lagorio, REHS <br /> Senior Registered Environmental Health Specialist Program Coordinator <br /> c: James Barton, CVRWQCB, 11020 Sun Center Drive#200, Rancho Cordova, CA 95670 <br /> Eric Price, Ground Zero Analysis, 1714 Main Street, Escalon CA 95320 <br />