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SUPERIOR ANALYTICAL LABORATORY, INC. <br /> 1555 BURKE, UNIT I - SAN FRANCISCO CA 94124 - PHONE (415) 647-2081 <br /> CERTIFICATE 0 E A N A L Y S I S <br /> rLnBORATCRY NO. : 52086 DATE RECEIVED. 08/15/90 <br /> CLIENT. Leedshill - Herhenhoff, Inc. DATE REPORTED. 08/16/90 <br /> CLIENT JCB NO. : 8332. 12 <br /> ANALYSIS FOR TOTAL PETRGLEU1 i-1YCRC)CARSCHIS <br /> 1 by P4od z f i ed EPA SW-846 Method 5000 and 3015 <br /> LAB Concentration (ug/L) <br /> ' - -r SampleIdentification Gasoline Range <br /> - - <br /> 0-15-9Q j4�I-G <br /> 0^60 <br /> Iug/L - parts per billion (ppb) <br /> Minimum D24ection Limit for Gasoline in Water: 50ug/L <br /> ' Q„OC Sur�imary <br /> Daily Standard run at 2mg/L : RPD Gasoline = < 15% <br /> 14S/MSD Average Recovery = 36%. Duplicate RPD = <2 <br /> - � Richard Srna, Ph. D. <br /> L— abor-,'tory Diracto'f <br /> QUMANDING QUALITY AND SERVICE <br />