SITE INFORMATION AND CORRESPONDENCE_3

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San Joaquin County DIRECTOR u IN Donna Heran, REHS O PA .IN... c Environmental Health Department ASSISTANT DIRECTOR �.. _ 600 East Main Street Laurie Cotulla, REHS < Stockton, California 95202-3029 PROGRAM COORDINATORS Mike Huggins, REHS, RDI .; Margaret Lagorio, REHS Website: www.sjgov.org/ehd Robert McClellon, REHS CiFO Phone: (209)468-3420 .teff Carruesco, RENS,RDI Fax: (209)464-0138 Kasey Foley, REHS 14 April 2009 Messrs. Robert Trommer, CHG, and Kirk Larson, PG State Water Resources Control Board Division of Financial Assistance 1001 1 Street Sacramento CA 95814 Subject: Annual Five-Year Review Update Letters San Joaquin County Environmental Health Department (EHD) has received and reviewed the following six Second review five-year review letters, each with your request to convey the agreement or disagreement of the EHD with the site-specific recommendations. The EHD comments for those sites are provided herein. The following comments pertain only to the recommendations; other information in the five-year letters that is incorrect or incomplete is noted only insofar as that information directly affects the recommendations. 2360 East Road, Tracy, CA. The State Water Resources Control Board Cleanup Fund Five Year Review Committee (CUF) recommendation in the Revised 5-Year Review Summary Report, dated 03 March 2009 was to consider the site for closure. The EHD does have the site under such consideration; however recent soil gas samples indicate a potential vapor intrusion issue; this may be related to a release from a pipeline run beneath the road fronting the site. A report providing further evaluation of the issue has been recently received by the EHD, review is pending. 11530 Eight Mile Road, West, Stockton, CA. In the Revised 5-Year Review Summary Report, dated 03 March 2009, the CUF concurred with the EHD approval of an ozone injection bench test; there has been a problem with obtaining access to the impacted area as it is on a levee, but access agreements have finally been obtained; drilling is scheduled for 29 April 2009. 15615 Seventh Street, S., Lathrop, CA. The CUF noted in Revised 5-Year Review Summary Report, dated 05 March 2009, that the EHD had directed the Responsible Party (RP) to implement dual phase extraction; the CUF concurred with that directive and recommended that active remediation begin without delay. Citing the recent issues with reimbursements from the CUF, the RP has not implemented remediation. The EHD has prepared a letter to set up a meeting with the RP to establish a schedule for addressing the remaining site problems. Annual 5-Year Review Comment Letter 041409.doc