SITE INFORMATION AND CORRESPONDENCE FILE 1

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Messers Trommer and Larson Page 2 Re: Annual Five -Year Review Various Sites 12 June 2009 Page 2 oft in a timely manner. By letter dated 31 March 2009, the EHD reduced the monitoring requirements; a few wells left on a quarterly schedule will be reduced to semiannual in our next letter. By letter dated 12 May 2009, Thrifty Oil Company advised the EHD that GWE was activated 12 January 2009 and SVE was activated 17 February 2009; both systems are still online. 2662 N. Wilson Way —Your draft letter recommends the EHD to direct the RP to begin active remediation without delay to achieve WQOs in a timely manner. The RP is under directive to implement active remediation, but as a suspended C class claimant, the RP claims financial hardship is impeding remediation. By letter dated 23 April 2009, the EHD responded to a request to delay implementation of the RAP until CUF reimbursements are reestablished; EHD approved a delay of a few months, but not indefinitely. The EHD also directed completion of an SVE pilot test by 07 August 2009. 2151 Country Club Boulevard —You recommend the EHD to direct the RP to conduct active remediation without delay and that monitoring costs be further reduced. The EHD will review the sampling/analytical requirements for the site, and the RP has been under directive to implement active remediation. At this time the property has reportedly been sold at a tax auction and the EHD has not had success contacting the RP. A Notice of Responsibility is in preparation for the new property owner. If you need more information to complete your review of these sites, contact caseworker Mike Infurna, REHS, at (209) 468-3454 or Nuel Henderson, Engineering Geologist, at (209) 468-3436 orilnfuma, (address on the I terhead). MiREHS Nuel C. Henderson, Jr., PG Senior Register Environmental Health Specialist Engineering Geologist C: Jim Barton, PG, CVRWQCB, 11020 Sun Center Dr. #200, Rancho Cordova, CA 95670 5 -Year Review Comment Letter B 0609.doc