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`. .i <br /> Nuel Henderson [EH] <br /> From: Barton, Jim@Waterboards Dim.barton@waterboards.ca.gov] <br /> Sent: Friday, April 24, 2015 10:46 AM <br /> To: Nuel Henderson [EH] <br /> Subject: RE: Waste Oil Tank PCBs <br /> Hi Nuel, <br /> Cori and I discussed the data, and we think that we would not open a case based on the <br /> data, and the location of the samples. The data shows PCBs at less than two orders of <br /> magnitude below USEPA screening levels and a sample taken below the excavated soil level. <br /> Thanks for your question. <br /> Jim Barton <br /> James L. L. Barton P. G. <br /> Engineering Geologist <br /> Central Valley Regional Water Quality Control Board 11020 Sun Center Drive, #200 Rancho <br /> Cordova, CA 95670-6114 <br /> Office (916) 464-4615 <br /> Fax (916) 464-4645 <br /> -----Original Message----- <br /> From: Nuel Henderson [EH] [mailto:nhenderson@sjcehd.com] <br /> Sent: Thursday, April 23, 2015 2:42 PM <br /> To: Barton, Jim@Waterboards <br /> Subject: Waste Oil Tank PCBs <br /> Jim, <br /> I'm forwarding to you the lab reports for the site we discussed by phone. The only analyte <br /> detected was aroclor 1260 at 109 micrograms per kilogram (ppb) . I looked up the CHHSL <br /> (3.0E-01 for commercial) and ESL (2.2E-01) . The residential CHHSL (0.089E-02) is exceeded, <br /> but this is an active service station. <br /> I found out that the soil ecavated to remove the tank was put back in the hole. I'm <br /> thinking that the lack of detectable hydrocarbon analytes and background-level <br /> concentration of the metal analytes coupled with the commercial CHHSLs and the ESLs <br /> indicate that we don't need to open a case on the site, but I would like to get your <br /> thoughts before I respond to Unit III. Ill be out of the office Friday, but back on <br /> Monday. Thanks Jim. <br /> Nuel <br /> -----Original Message----- <br /> From: Fatinah Zareef [EH] <br /> Sent: Thursday, April 23, 2015 2:23 PM <br /> To: Nuel Henderson [EH] <br /> Subject: FW: B5D0302 <br /> -----Original Message----- <br /> From: GeoAnalytical Lab [mailto:info@geoanalyticallab.com] <br /> Sent: Monday, April 20, 2015 11:32 AM <br /> To: Fatinah Zaree£ [EH] <br /> Subject: B5D0302 <br /> Thank you, <br /> Christina Ruiz <br /> GeoAnalytical Laboratories Inc. <br /> 1 <br />