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cbCurtis &Tompkins Ltd <br />' LABORATORY NUMBER: 112451 DATE SAMPLED: 09/23/93 <br /> CLIENT: ENVIRONMENTAL SCIENCE & ENGINEERING DATE RECEIVED: 09/24/93 <br /> PROJECT ID: 6-92-5009 DATE EXTRACTED: 09/27/93 <br /> LOCATION: AT&T LODI DATE ANALYZED: 09/29/93 <br /> DATE REPORTED: 10/04/93 <br /> Extractable Petroleum Hydrocarbons in Aqueous Solutions <br /> California DOHS Method <br /> 1 LUFT Manual October 1989 <br /> LAB ID CLIENT ID KEROSENE DIESEL REPORTING SURROGATE <br /> RANGE RANGE LIMIT* RECOVERY <br /> (ug/L) (ug/L) (ug/L) (Hexacosane) <br /> -------_---------------------------------------------_-------__--------------- <br /> 112451-1 MW-1 ND ND 50 137 % <br /> 112451-2 MW-2 ND ND 50 122 % <br /> 112451-3 MW--3 ND ND 50 111 <br /> 112451-4 MW-4 ND ND 50 119 <br /> 112451-5 DUP ND ND 50 120 <br /> 112451--METHOD N/A ND ND 50 - 101 % <br /> ND = Not detected at or above reporting limit. <br /> * Reporting limit applies to all analytes. <br /> QA/QC SUMMARY: BS/BSD <br /> RPD, $ 9 <br /> RECOVERY, % 96 <br /> 1 <br />