SITE INFORMATION AND CORRESPONDENCE_FILE 1

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San Joaquin County DIRECTOR Donna Heran,REHS Environmental Health Department ). _ .OG 1" ASSISTANT DIRECTOR Q _ =.jf ' 600 East Main Street Laurie Cotulla,REHS ` ' Stockton, California 95202-3029 PROGRAM COORDINATORS •' '• Carl Borgman,REHS �.• p Mike Huggins,REHS,RDI q��FocRri� Website: www.sjgov.org/ehd Margaret Lagorio,REHS Phone: (209) 468-3420 Robert McClellon,REHS Fax: (209)464-0138 ,teff Carruesco,REHS,RDI Kasey Foley,REHS March 9, 2009 Barbara J. Hyduke Barbara J Hyduke Trust 3627 Adobe Creek Court Stockton, CA 95219 Subject: Valley Motors RO#: 594 800 E. Main St. CUF#: 12540 Stockton, CA 95202 Global ID#: T607700430 The San Joaquin County Environmental Health Department (EHD) has reviewed Upgradient Environmental Consultant's February 24, 2009 letter and offers the following comments. A meeting was held on February 6, 2009 to discuss the status of the site's approved remedial pilot test for ground water extraction that has not been enacted. It was agreed at the meeting that a revision to the Pilot Test plan would be submitted to the EHD which would consist of testing the existing wells onsite for effective ground water extraction instead of installing the larger extraction wells as originally proposed in the plan. No date was specified for its submittal to the EHD. The letter advised the EHD that no investigative or corrective action activities were conducted at the site for the fourth quarter 2008 and that you were working on the work plan revision. No schedule for future investigative or remedial actions was provided in the letter. Please be aware that the California Code of Regulations, Title 23, Section 2652 requires owners of contaminated underground storage tank sites to report quarterly on the status of their site to the lead regulatory agency overseeing the investigation. The report must include an update on specific information and results of all corrective actions (investigations) which occurred during the period. One of the items that must be discussed in each quarterly report is future investigative actions and a time schedule for implementing the actions. You may prepare this report yourself unless geologic or engineering interpretation is included which would require that it be prepared by an appropriately registered professional. All reports submitted to the EHD must include a time schedule with the dates reports will be submitted and investigative and corrective actions will be conducted. The most recent ground water analytical data is from September 25, 2008 (Third Quarter — 2008). Ground water samples from monitoring well VM-2 contained 39,900 ug/I of Total Petroleum Hydrocarbons as Gasoline (TPHg) as well as elevated levels of benzene, toluene, ethylbenzene, and xylene (BTEX). All concentrations of petroleum for this well during this last sampling event were up significantly from the previous event in July 2008. Monitoring well VM-4 is down-gradient of VM-2 and ground water samples during the same period and also indicated a rise in concentrations of dissolved petroleum in the ground waters samples.