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California Regional Water Quality Control Board <br /> Central Valley Region <br /> Robert Schneider,Chair " <br /> Alan C.Lloyd Ph.D. Arnold Schwarzenegger <br /> Secretary for Sacramento Main Office Governor <br /> Environmental Internet Address: http://www.waterboards.ca.gov/centralvalley <br /> Protection 11020 Sun Center Drive#200 Rancho Cordova,CA 95670-6114 <br /> Phone(916)464-3291 Fax(916)464-4797 <br /> 10 June 2005 <br /> Lg <br /> 21 DD <br /> Mr. Richard Brandes <br /> ST Services J"'N 200 <br /> 2801 Waterfront Road ENVIr;U1WENT HEALTH <br /> Martinez, CA 94553 PEPPOIT/SEWCES <br /> REVIEW OF MONITORING REPORTS, SUPPORT TERMINALS OPERATING <br /> PARTNERSHIP, LP TERMINAL #29, 2941 NAVY DRIVE, STOCKTON, <br /> SAN JOAQUIN COUNTY <br /> Staff of the Central Valley Regional Water Quality Control Board (Regional Board) reviewed the <br /> following reports submitted by Ash Creek Associates, Inc. on behalf of ST Services bulk fuel <br /> terminal #29 at 2941 Navy Drive in Stockton (site): <br /> • 31 January 2005 Groundwater Monitoring Report Fourth Quarter and Annual 2004 <br /> (Annual Report); <br /> • 29 April 2005 Groundwater Monitoring Report First Quarter 2005 (QMR); <br /> • 13 May 2005 Post-Pilot Study Monitoring Report(Report). <br /> The Annual Report discusses the groundwater monitoring activities conducted in November, <br /> trends observed in 2004, and status of the bioaugmentation pilot study. The QMR discusses the <br /> groundwater monitoring activities conducted in February and the status of the bioaugmentation <br /> pilot study. The Report discusses the monitoring associated with evaluating the effectiveness of <br /> the bioaugmentation pilot study. We have the following comments on these reports: <br /> 1. The QMR shows analysis of total petroleum hydrocarbons (TPH) as gasoline by EPA <br /> Method 8260. Although Monitoring and Reporting Program No. R5-2004-0822 has a <br /> typographical error and lists analysis of TPH as diesel twice by EPA Method 8015, the <br /> second"TPH as diesel" should be "TPH as gasoline." Therefore, ST Services needs to <br /> analyze TPH as gasoline by EPA Method 8015. <br /> 2. Section 4.0 of the Report states the March 2005 potassium concentrations are "similar to" <br /> the pre-pilot study potassium concentrations. However, the Conclusion Section of the <br /> Report states the injected nutrients decreased to or are below baseline concentrations. <br /> The discussion of the nutrient concentrations must be more specific for the comparison or <br /> pre and post pilot study monitoring. <br /> California Environmental Protection Agency <br /> ra Recycled Paper <br />