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4 " r <br /> 'S North State Environmental Laboratory CA FLAP# 1753 <br /> 90 South Spruce Avenue, Suite V • South San Pranciaco CA 94080 • (650) 266-4563 • f AX (65p) 2b6-4560 <br /> C E R T I F I C A T E Q F A N A L Y S I S <br /> Quality Control /Quality Assurance <br /> Lab Number 00-1373 <br /> Client Compliance and Closn re <br /> ProDect 412118 / QUIK STOP #121 <br /> Date Reported 10/02/2000 <br /> Gasoline, BTEX and MTBE by Methods 8015M and 8020 <br /> Reporting Avg MS/MSD <br /> Analvte Method Limit Unit Blank Recovery RPD <br /> Gasoline 8015M 50 ug/L ND 109 1 <br /> Benzene 8020 0 5 ug/L ND 95 3 <br /> Toluene 8020 0 5 ug/L ND 104 2 <br /> Ethylbenzene 8020 0 5 ug/L ND 107 2 <br /> Xylenes 8020 1 0 ug/L ND 1l3 3 <br /> MTBE 8020 0 5 ug/L ND 103 3 <br /> ELAP Certificate NO 1753 <br /> rReviewel a dlAppr ved <br /> rI t <br /> . _ Page 2 of 2 <br /> John A Murphy, aboratory Director <br /> g 'd eTI :Lo 00 90 130 <br />