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Jeff Wong [EH] <br /> From: Kasey Foley[EH] <br /> Sent: Tuesday, November 18, 2014 8:59 AM <br /> To: Jeff Wong [EH] <br /> Cc: Willy Ng [EH]; Raymond von Flue [EH]; Garrett Backus [EH] <br /> Subject: FW: Results/EDD/Invoice - LINDEN UST Removal (1403251) - State Route <br /> Jeff, <br /> I just got off the phone with Clem and he said the landfill wants a letter from the lab explaining the samples. I told him if <br /> the landfill accepts the tank and the explanation from lab then we will allow it to go to the landfill as non-hazardous. <br /> Kasey <br /> From: Goewert, Clemens@DOT [mailto:clemens.goewert@dot.ca gov] <br /> Sent: Tuesday, November 18, 2014 8:04 AM <br /> To: Kasey Foley [EH] <br /> Subject: RE: Results/EDD/Invoice - LINDEN UST Removal (1403251) - State Route <br /> Kasey: <br /> The initial analysis was made on a composite from several samples collected from the tank. <br /> Bob Kimball found during the sampling that the bottom of the tank is highly deteriorated, even though the top <br /> of the tank makes the tank appear to be intact. <br /> The initial analytical results indicated lead, copper, iron, etc. which did not make sense that the drilling mud in <br /> the tank would have the constituents. <br /> The lab was then instruct to prepare a new composite sample, an make certain that no metal pieces or rust <br /> from the tank were in that sample. This recomposited sample was then analyzed for total lead. This sample <br /> indicates that the material has non-hazardous lead concentrations. <br /> These metal concentration from the initial analysis is from the tank and not tank contents. The tank probably <br /> was made from a low quality steel from the 1930s Or 40s. I remember seeing similar results in the water <br /> samples from a couple of water supply wells that I long ago. The well casing was attacked by iron bacteria <br /> and gave similar results. <br /> We would like to dispose of the tank contents as non-hazardous, and recycle the steel from the tank. <br /> Please call me if you have questions. <br /> Clem Goewert <br /> CALTRANS <br /> Environmental Planner Paleontology and Hazardous Waste Group <br /> 855 M Street <br /> Fresno,CA 93721 <br /> 1 <br />