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l Page 2 of 2 <br /> It sounds like they sampled soil in the new tank location before removing the old tank, and the PCBs <br /> results were ND. The second figure shows a new waste oil tank adjacent to the old waste oil tank. Since <br /> soil was ND for everything else for the old waste oil.tank and if PCBs were ND for the new waste oil tank, <br /> then there is an argument that the PCBs probably would have been ND if sampled at the old waste oil <br /> tank. I think it's close enough. <br /> Also, I do not see a UST-3 on the November 1989 Inspection Report. Is UST-3 the new waste oil tank? <br /> Jim Barton <br /> James L. L. Barton P. G. <br /> Central Valley Regional Water Quality Control Board <br /> 11020 Sun Center Drive,#200 <br /> Rancho Cordova,CA 95670-6114 <br /> Office (916)464-4615 <br /> Fax (916)464-4704 <br /> From: Vicki McCartney [EH] [ma i Ito:vmcca rtney@sjcehd.com] <br /> Sent: Thursday, November 21, 2013 2:54 PM <br /> To: Barton, Jim@Waterboards <br /> Subject: Waste oil data for 620 Charter Way in Stockton <br /> Hi Jim, <br /> I researched the underground storage tank(UST) removals at 620 Charter Way in Stockton. I believe that <br /> there were two waste oil tanks at the site. One 550-gallon waste oil tank(UST-3)was removed in June <br /> 1987. The first ynap shows the location of that waste oil tank, The second 550-gallon waste oil tank(UST- <br /> 5)was installed adjacent to the first waste oil tank(UST-3) and the second waste oil tank(UST-5)was <br /> removed on November 14, 1989. <br /> Soil from UST-3 was analyzed in duplicate for one PCB, 8010 compounds, 8020 compounds, gas, diesel <br /> and motor oil and all results were non-detect. The one soil sample was not analyzed for metals. <br /> Soil from UST-5 was analyzed for metals: cadmium, chromium, lead and zinc; gas, BTEX, total petroleum <br /> fuel hydrocarbons, total recoverable oil and grease, 8010 compounds, 8270 compounds, but no <br /> PCBs. Only metals were detected in the soil sample from UST-5. (I included the analytical data for the <br /> sump and hoists 1 and 2.) <br /> Please review the appended data and let me know.if your agency requires additional sampling. <br /> Thank you, Jim. <br /> Vicki McCartney, Senior REHS <br /> San Joaquin County <br /> Environmental Health Department <br /> 1868 East Hazelton Avenue <br /> Stockton, California 95205 <br /> Phone: (209)468-9852 <br /> Email: vmccartney(a sicehd.com <br /> i <br /> 11/22/2013 <br />