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DoAUG 2 ,1 209 <br /> Department of Toxic SubstaihCGQntro ;y <br /> JIvrJ <br /> Maziar Movassaghi <br /> Linda S.Adams Acting Director Arnold Schwamenegger <br /> Secretary for 8800 Cal Center Drive Governor <br /> Environmental Protection Sacramento, California 95826-3200 <br /> August 20, 2009 <br /> Mr. Maurice Benson <br /> Defense Logistics Agency <br /> Defense Distribution Depot San Joaquin, Sharpe Site <br /> P. O. Box 960001 <br /> Stockton, California 95296-0250 <br /> COMMENTS ON THE DRAFT OPERABLE UNIT 2 (OU2) RECORD OF DECISION <br /> (ROD) AMENDMENT FOR DEFENSE DISTRIBUTION DEPOT SAN JOAQUIN <br /> CALIFORNIA (DDJC), SHARPE SITE, LATHROP, CALIFORNIA <br /> Dear Mr. Benson: <br /> The Department of Toxic Substances Control (DTSC) received e-mail notification that <br /> the above-mentioned evaluation report was available for electronic review on <br /> April 10, 2009. DTSC requested a 30-day extension for its review of soil, soil gas, and <br /> groundwater contaminant data referenced in the ROD Amendment to evaluate whether <br /> additional actions, including, but not limited to soil vapor extraction (SVE), is required for <br /> vadose zone soils in the South Balloon Source Area (SBSA). The 30-day extension <br /> required that DTSC comments are received by Defense Enterprise San Joaquin <br /> California (DESJC) by July 9, 2009. On July 6, 2009, the United Stated Environmental <br /> Protection Agency requested an additional 30-day extension for review of the draft ROD <br /> Amendment, moving the regulatory comment deadline to August 6, 2009. <br /> DTSC has reviewed the report and has the following comments: <br /> Comments <br /> 1. Declaration page 5, DTSC Signature Block; The position title for Mr. Anthony J. <br /> Landis should be modified to read Anthony J. Landis, P.E., Chief, Sacramento <br /> Cleanup Branch. <br /> 2. Page 1-1, section 1.0.2; Site P-5A is mentioned as a site needing further SVE, <br /> and should mention that Integrated Carbon and Zero Valent Iron (EHC) <br /> innovative technology is currently being implemented in the saturated zone soils <br /> ® Printed on Recycled Paper <br />