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h h <br /> i <br /> l <br /> Superior precision Analytical, Inc. <br /> 825 Arnold Drive. Suite 1 14 • Martinez. California 94553 - (5 i 0} 229-1 5I 2 / Fax (510) 229-1 526 <br /> C E R T I F I C A T E O F A N A L Y S I S ' <br /> I <br /> DATE RECEIVED: 12/31 /91 <br /> LABORATORY NO. : 84729 <br /> L <br /> CLIENT : Harding Lawson Associates , Canoord DATE REPORTED: 01 /06/92 CLIENT JOB NO. : 17060 , 025 .03 DATE SAMPLED 12/30/91 ; <br /> I � <br /> ANALYSIS FOR TOTAL PETROLEUM HYDROCARBONS { <br /> by MODIFIED EPA SW-846 METHOD 5030 and 8015 <br /> Concentration (mg/L) <br /> LAB <br /> i� # Sample Identification Gasoline-Range <br /> 1MW--1w Y ND<0 . 05 <br /> 2 MW-2 ND<0 . 05 <br /> 3 MW-3 ND<0, 05 <br /> 4 MW-4 ND<0 .05 <br /> 5 MW-5 <br /> MW-6 ND<0 .05 <br /> 6 <br /> 7 MW-,8' 3 i <br /> $ ,Mw-9 _� _ 427, <br /> - -- <br /> *g BMW-10- ND<0.05 a <br /> 10 MW-11 ND<0 .05 <br /> 11 MW-12 ND<0 .05 G <br /> 12 MW-13 ND<0 .05 <br /> 13 MW-14 <br /> ND<0.05 <br /> 14 MW-15 <br /> 15 COMPOSITE (mg/kg) ND< 1 <br /> 16 trip. blank ND ...I 05 ' <br /> 17 ` MW-10A _ - 73 r <br /> :.� mg/kg - parts per million (ppm) <br /> mg/L - parts per million (ppm) <br /> Method Detection n Limit for Gasoline in Soil : 1 mg/kg <br /> Method Detection Limit for Gasoline in Water: 0 .05 mg/L <br /> * Possible interferences with surrogate compound or a dilution error caused <br /> low results for this analysis, <br /> QAQC Summary: <br /> i <br /> C Daily Standard run at 2mg/L: RPD Gasoline = < 15 <br /> MS/MSD Average Recovery = 97%: Duplicate RPD = 7 <br /> Richard Srna, Ph. D. <br /> l <br /> D r for <br /> Laboratory i ec <br /> Certified Laboratories <br /> i <br />