SITE INFORMATION AND CORRESPONDENCE

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I San Joaquin County DIRECTOR o UL ! N Donna Heran, REHS Environmental Health Department ASSISTANT DIRECTOR r. 600 East Main Street Laurie Cotulla, REHS Stockton , California 95202-3029 PROGRAM COORDINATORS Carl Borgman, REHS Website: wwwsjgov, org/ehd Mike Huggins, lo, REREHSRDI Foa Phone: 209 468-3420 Margaret Clelloo, REHS ( ) Robert McClellon, RENS Fax: (209) 464-0138 Jeff Carruesco, REHS, RDI Kasey Foley, REHS March 12 , 2009 Bill Stoermer Lawrence Beasley Fremont Plaza Investments Apache Plastics 7015 Morton Court 2120 Pebble Drive Stockton , CA 95209 Alamo , CA 94507 Subject: Former Apache Plastics Site Code: 2313 2050 Fremont Street Stockton , CA 95209 On March 10, 2009 , a meeting was held at the San Joaquin County Environmental Health Department (EHD) office to discuss the status of the investigation of the above subject contaminated underground storage tank site. Present at the meeting were Bill Stoermer representing Fremont Plaza Investments, Robert Marty, William Little and Art Deicke, representing Advanced GeoEnvironmental , Inc. (AGE) and Margaret Lagorio, Nuel Henderson and Lori Duncan representing the EHD . The meeting was held to discuss the request by AGE on behalf of Mr. Stoermer to suspend site work until the economic situation with the State Water Resources Water Quality Control Board Cleanup Fund (CUF) improves, and to further reduce or even suspend routine sampling of the site's groundwater monitoring wells. The EHD explained that responsible parties are required by law to report quarterly on the status of their site to the regulatory agency overseeing the investigation and that if no work was performed they can prepare the report themselves . The report would state that no work had been performed and provide proposed actions and when they will be implemented . The EHD stated that requests to reduce sampling regimens will be considered when a sampling schedule is provided with technical justification to support the schedule. At this time, the EHD does not consider your site to be a candidate for annual monitoring and sampling due to detection of tert amyl methyl ether (TAME) and increased concentrations of 1 ,2-dichloroethane ( 1 ,2-DCA) in various monitoring wells since June 2007 , potentially indicating an unstable plume. The contaminant concentration trends in various monitoring wells on your site indicate that remediation of impacted groundwater will be necessary to move your site toward closure within a reasonable time. AGE has conducted a groundwater extraction pilot test, and a bench scale test for ozone infusion . In their Aquifer Pump and Ozone Infusion Bench Scale Test Report dated August 30, 2008, AGE concluded that neither remedial option tested would be cost effective for your site remediation , but still seem to favor insitu chemical oxidation ( ISOC).