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GROUND ZERO ANALYSIS, INC. <br /> 1714 Main Street <br /> Escalon, California 95320-1927 <br /> Telephone: (209)838-9888 <br /> Facsimile: (209)838-9883 <br /> March l 9,2009 <br /> Mr. Gerald Djuth` �' 77 <br /> CA Regional Water Quality Control Board, <br /> Central Valley Region <br /> 11020 Sun Center Drive,4200 <br /> Rancho Cordova,CA 95670-6114 <br /> Subject: M&L Andrade&Sons Diesel Spill Site,McKinley Ave.,Stockton,CA <br /> Results of Site Inspection and Request for Case Closure <br /> Dear Mr.Djuth: <br /> On behalf of M&L Andrade & Sons, Ground Zero is writing to respond to the Regional <br /> Water Quality Control Board (RWQCB) request for a workplan to investigate the extent <br /> of contamination resulting from a diesel spill that occurred on January 23, 2007. <br /> hi order to familiarize ourselves with the background of the case, we copied the file kept <br /> by the San Joaquin County Environmental Health Department (EHD). The records <br /> confirmed the general facts of the release as stated in RWQCB and EHD correspondence <br /> but did not provide a precise location. The spill point could not be determined from <br /> photos contained in the case file. <br /> Mr. Raymond von Flue of EHD had responded to the spill at the time of occurrence and I <br /> spoke with him about meeting at the spill site so lie could identify the exact area of <br /> release. Mr. von Flue could not be present for the inspection but provided two <br /> photographs that were not in the EHD file that I could use to identify the release location. <br /> The EHD photos (attached) show staining from the diesel spill along the ballast next to <br /> the tracks and absorbent, which according to the case file, had been applied by UPRR <br /> personnel. There is a puddle of liquid visible very near the spill but Mr. von Flue <br /> confirmed that this was rainwater, not diesel. The affected area was very small, and the <br /> lack of impact to the puddle suggests that less than 30 gallons may have actually been <br /> spilled. <br /> On Tuesday, February 24t1i, 1 traveled to the accident site and identified the spill location. <br /> The weather was sunny following several days of rain including heavy rain on the 23rd <br /> G:1G ROUNDZEkANDRA DE1LeticnoRWQCB031909.doc <br />