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� M <br /> California Regional Vater Quality Control Board <br /> Centra Valley Region <br /> a <br /> Rober Schneider,Chair <br /> Terry Tamminen Arnold Schwarzenegger <br /> Secretary for Sacramento Main Office Governor <br /> Environmental Intemet Address: http://www.swrcb.ca.gov/rwgcb5 <br /> Protection 11020 Sun Center Drive#200 Rancho Cordova,CA 95670-6114 <br /> Phone(916)464-3291 Fax(916)464-4797 <br /> 19 March 2004 <br /> Mr. Jeffrey Baker <br /> Tesoro Petroleum Companies, Inc. <br /> 3450 South 344th Way, Suite 100 <br /> Auburn, WA 98001 <br /> REVIEW OF REPORTS, STOCKTON TERMINALS TECHNICAL COMMITTEE, <br /> PORT OF STOCKTON, SAN JOAQUIN COUNTY <br /> Staff of the Central Valley Regional Water Quality Control Board (Regional Board) has reviewed <br /> the following reports submitted by SECOR International Incorporated on behalf of the Stockton <br /> Terminals Technical Committee (STTC), which is composed of ARCO Products Company, <br /> Tesoro Petroleum Company, and Time Oil ompany. <br /> • 30 July 2003 Site Status and Groundwater Monitoring Report Second Quarter 2003 <br /> (Second QMR); <br /> • 30 October 2003 Third Quarter 2003 5ite Status and Groundwater Monitoring Report <br /> (Third QMR); <br /> • 30 January 2004 2003 Annual and Fo rth Quarter 2003 Site Status and Groundwater <br /> Monitoring Report(Annual Report); d <br /> • 9 March 2004 Request for Modificati n of STTC MRP No. 5-01-819(Letter). <br /> The Second and Third QMRs discuss the gi oundwater monitoring activities conducted in May <br /> and August 2003, respectively. The Annua Report discusses the groundwater monitoring <br /> activities conducted in November 2003, trends observed, and remedial activities conducted in <br /> 2003. Based on review of the monitoring reports,the vertical extent of petroleum pollution does <br /> not appear to be defined. STTC needs to provide information, if available, on samples collected <br /> below the D water bearing zone. <br /> The Letter recommends.monitoring for STTC and Support Terminals Operating Partnership, LP <br /> (ST Services). ST Services was formerly a part of STTC,but is now beginning to monitor and <br /> investigate pollution separately. In accordance with the Letter, Regional Board staff has prepared <br /> a draft revised monitoring and reporting program (MRP) for STTC. By 19 April 2004, please <br /> provide comments on the attached draft MRP and a figure to include with the final MRP that <br /> shows locations of all monitoring wells. The next monitoring report is due by 1 May 2004 and <br /> needs to include a discussion of vertical delineation and whether additional delineation activities <br /> California Environmental Protection Agency <br /> p�iRecycled Paper <br />