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CHRQMALAB, INC. <br /> Fax Transmission <br /> Environmental Services(SOB) <br /> Date : May 4, 1998 Pages : 1 <br /> To : Gary Haeck Fax# : 916-364-5633 <br /> Company : HARDiNG LAWSON (SACRAMENTO) <br /> From : Gary Cook cc Eric Tam, Lab Director <br /> Subject : Recent Gas/BTEX analysis on Project 38737 004, Submission 9803455 <br />' We recently reported to you test results for samples we received March 30, 1998, for the above project <br /> Most of the samples were reported to you from tests run in hold time, but two of the samples were <br />' reported from tests run out of the recommended 14 day hold time <br /> These two samples had been run inside the 14 day hold time, and we had repeated analysis at dilution, in <br /> an attempt to report all results within our validated calibration range, and within recommended hold <br /> time Unfortunately, we ran out of time before were able to get the samples within calibration range <br /> ' The test results you received were done on a methanol extract, which was necessary to get the correct <br /> calibration range <br /> The results of our tests run within recommended hold time are <br /> Spl# Client Sample ID Analyte Result (mg/Kg) Date analyzed <br /> 77962 HP-2SD Gasoline >104 Apnl 9, 1998 <br /> 77962 HP-2SD Benzene >1 2 April 9, 1998 <br /> 177962 HP-2SD Toluene >2 6 Apnl 9, 1998 <br /> 177962 HP-2SD Ethyl benzene >6 1 April 9, 1998 <br /> 177962 HP-2SD Xylenes >5 1 Apnl 9, 1998 <br /> 177966 HP-2SG Gasoline >87 Apnl 9, 1998 <br /> 177966 HP-2SG Benzene >2 2 April 9, 1998 <br /> 177966 HP-2SG Toluene >2 8 Apnl 9, 1998 <br /> 177966 HP-2SG Ethyl Benzene>4 8 April 9, 1998 <br /> r177966 HP-2SG Xylenes >3 9 April 9, 1998 <br /> These results are all "greater than" because they were above calibration range, and needed dilution You <br /> will note that these legally valid results support the estimates found in tests run after the recommended <br /> holding time had expired <br /> We also confirmed one of the water sample test results that you requested, and the results were similar to <br /> previous tests We also confirmed that the times and VOA vial labels were all correct Please let me <br /> 1 know if you have questions, or if I can provide more information, <br /> Sincerely, <br /> �Dr <br /> ry ok <br /> ' ior, Business Development <br /> 1220 Quarry Lane • Pleasanton, California 94566-4756 <br /> (510) 484-1919 • Facsimile (510) 484-1096 <br /> Federal ID #68-0140157 <br />