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ubCurtis &Tompkins Ltd <br /> LABORATORY NUMBER: 115457 DATE SAMPLED: 04/28/94 <br /> CLIENT: ENVIRONMENTAL SCIENCE & ENGINEERING DATE RECEIVED: 05/02/94 <br /> PROJECT ID: 6925400 DATE EXTRACTED: 05/04/94 <br /> LOCATION: CECCHINI DATE ANALYZED: 05/05/94 <br /> DATE REPORTED: 05/06/94 <br /> Extractable Petroleum Hydrocarbons in Aqueous Solutions <br /> California DOHS Method <br /> LUFT Manual October 1989 <br /> LAB ID SAMPLE ID KEROSENE DIESEL REPORTING SURROGATE <br /> RANGE RANGE LIMIT RECOVERY <br /> (ug/L) (ug/L) (ug/L) (Hexacosane) <br /> -------------------------------- ----------------------------------------- <br /> 115457-1 UST--1 ** 201000 500 * % <br /> METHOD BLANK N/A ND ND 50 137 <br /> C <br /> Surrogate recovery limits: 60% - 150% <br /> ND = Not detected at or above the reporting limit. <br /> * Diluted out <br /> ** Kerosene range not reported due to overlap of hydrocarbon ranges. <br /> QA/QC SUMMARY: BS/BSD <br /> RPD, % 11 (Limit: <25 ) <br /> RECOVERY, % 80 (Limits: 75 - 125) <br />