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San Joaquin County <br /> gU1N Environmental Health Department DIRECTOR <br /> �P.•• • ..c Donna Heran,REHS <br /> 1868 East Hazelton Avenue <br /> a: <br /> PROGRAM COORDINATORS <br /> U,: Stockton, California 95205-6232 Robert McClellon, REHS <br /> Jeff Carruesco,REHS,RDI <br /> Kasey Foley,REHS <br /> • C •. -YP Website: www.sjgov.org/ehd Linda Turkatte,REHS <br /> 9��F0•Rc1 <br /> Phone: (209) 468-3420 <br /> Fax: (209) 464-0138 <br /> May 18, 2012 <br /> Mr. Wesley Parkinson <br /> Parkinson's 1-5 ARCO Service Station <br /> 3250 West Hammer Lane <br /> Stockton, California 95209 <br /> Subject: Parkinson's 1-5 ARCO Service Station <br /> 3250 West Hammer Lane <br /> Stockton, California 95209 <br /> Dear Mr. Parkinson: <br /> The San Joaquin County Environmental Health Department (EHD) received an annual five-year <br /> review letter dated 18 April 2011 in which the State Water Resources Control Board (SWRCB) <br /> Underground Storage Tank (UST) Cleanup Fund (CUF) recommended that the EHD review this <br /> site for closure. This was a change from the five-year review letters received previously over a <br /> three-year period in which the CUF recommended implementation of groundwater remediation <br /> to achieve water quality objectives in a timely manner. <br /> The EHD responded to the CUF by letter dated 25 May 2011 and recommended that the CUF <br /> refrain from issuing the site closure recommendation to permit a ninety-day ozone/hydrogen <br /> peroxide injection pilot test to be performed beginning in June 2011. The CUF did not directly <br /> respond to the EHD but did upload the original 18 April 2011 letter on 20 June 2011 to <br /> GeoTracker, the SWRCB website. <br /> In light of this, the EHD will work to close this site since the CUF has recommended site closure <br /> and there are limited reimbursements of expenses allotted to sites that have been <br /> recommended for closure consideration by the CUF. The EHD directs that all monitoring and <br /> sampling at this site be suspended while the site is being considered for closure. <br /> The EHD directs that a closure summary report be submitted to this agency by 09 July 2012 <br /> that: <br /> • Includes the results of the ninety-day ozone/hydrogen peroxide injection pilot test; <br /> • Provides an estimate when groundwater will return to water quality goals; <br /> • Provides a declining trend analysis; <br /> • Includes Table 1 — Checklist of Required Data for No Further Action Requests at <br /> Underground Tank Sites (Appendix A — Reports, Tri-Regional Board Staff <br /> Recommendations for Preliminary Investigation and Evaluation of Underground Tank <br /> Sites), dated 16 April 2004, published by the California Environmental Protection <br />