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Department of Toxic Substances Control <br /> Maziar Movassaghi <br /> Linda S.Adams Acting DirectorSchwarzenegger <br /> Secretary for 8800 Cal Center Drive ����� ��3overnor <br /> Environmental Protection Sacramento, California 95826-3200 <br /> JUN 0 9 2009 <br /> June 8, 2009 ENVIRONMENT HEALTH <br /> PERMIT/SERVICES <br /> Mr. Maurice Benson <br /> Defense Logistics Agency <br /> Defense Distribution Depot San Joaquin, Sharpe Site <br /> Post Office Box 960001 <br /> Stockton, California 95296-0250 <br /> EXTENSION REQUEST ON THE DRAFT AMENDMENT TO THE RECORD OF <br /> DECISION (ROD) BASEVVIDE REMEDY FOR OPERABLE UNIT 2 (OU2) SOILS FOR <br /> DEFENSE DISTRIBUTION DEPOT SAN JOAQUIN CALIFORNIA, SHARPE SITE, <br /> LATHROP, CALIFORNIA <br /> Dear Mr. Benson: <br /> The Department of Toxic Substances Control (DTSC) is requesting a 30-day extension <br /> to the current review period for the DDJC-Sharpe OU2 ROD Amendment in accordance <br /> with Section 28.1 of the 1991 Federal Facilities Agreement. DTSC is requesting the <br /> extension to review and evaluate site soil gas data to determine whether soil vapor <br /> extraction remedial actions are warranted for existing vadose zone contamination or <br /> whether a no-further remedial action determination as recommended by the Defense <br /> Enterprise Support San Joaquin California is protective of site groundwater. The 30-day <br /> extension would postpone the deadline for DTSC comments to July 9, 2009. <br /> If you have any questions or concerns with the letter, please contact me at <br /> (916)255-3713 or e-mail pmacnich(a)dtsc.ca.gov <br /> Sincer <br /> -/� <br /> Peter MacNicholl, P.E. <br /> Remedial Project Manager <br /> Sacramento Office <br /> Brownfields and Environmental Restoration Program <br /> cc: See next page. <br /> 9 Printed on Recycled Paper <br />