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Californ" Regional Water Quality Crol Board io <br /> Centrad Valley RegionKarl E.Longley,ScD,P.E.,Chair <br /> Linda S.Adams 11020 Sun Center Drive 4200,Rancho Cordova,California 95670-6114 Arnold <br /> Secrela,y for Phone(916)464-3291 •FAX(916)464-4645 Schwarzenegger <br /> Environmental http://www.waterboards.ca.gov/centralvalley Governor <br /> Protection <br /> 8 June 2009 <br /> Ms. Lillia Andrade I �� _ ._. --- 'IVIr. Jim Levy <br /> M&L Andrade and Son r urig Unioin Pacific Railroad <br /> 5631 Ravanna Drive �y - i S e Remediation <br /> Stockton, CA 95212 9451 Atkinson Street, Suite 100 <br /> Roseville, CA 95747 <br /> SOIL SAMPLING WORKPLAN, ANDRADE AND SONS DIESEL SPILL, MCKINLEY <br /> AVENUE AND INDUSTRIAL WAY, STOCKTON, SAN JOAQUIN COUNTY <br /> Staff of the Central Valley Regional Water Quality Control Board (Central Valley Regional <br /> Board) have reviewed the 28 May 2009 Soil Sampling Workplan (Workplan) submitted on your <br /> behalf by Ground Zero Analysis, Inc. You submitted the Workplan in response to the 6 May <br /> 2009 Central Valley Regional Board letter requesting soil samples to determine if residual <br /> contamination (TPHd) remains in the soil at the site of a diesel spill that occurred on 23 <br /> January 2007 due to an accident involving a M&L Andrade and Sons (Andrade) truck and a <br /> Union Pacific Railroad (UPRR) train near McKinley Avenue and Industrial Way in Stockton. <br /> The Workplan proposes taking soil samples from two depths at four locations at the site of the <br /> spill. The samples will be taken at depths of 6 inches and about 3 feet immediately <br /> upgradient, downgradient and beneath the site of the spill. The fourth sample site is about <br /> 100 feet downgradient from the spill. The samples will be taken with hand auger equipment <br /> after clearance by Underground Service Alert and under right of entry by UPRR, and tested at <br /> a State certified laboratory for TPH by EPA Method 8015M and BTEX by EPA Method 8021 B. <br /> The Workplan is acceptable to Central Valley Regional Board staff. The investigation report is <br /> due 60 days after completion of the fieldwork. Please notify this office 72 hours prior to <br /> collecting the samples in case staff should decide to be present. Should you have any <br /> questions regarding the information in this letter, please call Gerald Djuth, the Board's project <br /> manager, at (916) 464-4677 or by email at gdjuth@waterboards.ca.gov. <br /> Gerald Djuth, P. C.E.G <br /> Site Cleanup Unit <br /> cc: Mr. Raymond von Flue, San Joaquin County. Environmental Health Dept., Stockton <br /> Mr. Jim Beecham, Nationwide Insurance, Westminster, MA <br /> Mr. Gregory P. Stahl, Ground Zero Analysis, Inc., Escalon <br /> California Environmental Protection Agency <br /> r�%Recvcled Paper <br />