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CREEK ENVIRONMENTAL LABORATORIES, WC. Qual tt-el—Reselts Page—9 -- 141 SUBURBAN ROAD,SUITE C-5 • SAN LUIS OBISPO,CA 93401 (805)545 9838 FAX(805)545-0107 Order �o— J3857 ' Laboratory Reagent Blank Test Method Results Units TPH as Gasoline (AQ) EPA 8015< 50 ug/L^ TPH as Gasoline (AQ) EPA 8015¢ 50 ug/L TPH as Diesel in water EPA 8015M< 0 05 mg/L ' Benzene EPA 8020 < 0 5 ug/L Benzene EPA 8020 < 0 5 ug/L Toluene EPA 8020 < 0 5 ug/L Toluene EPA 8020 < 0 5 ug/L Ethyl Benzene EPA 8020 < 0 5 ug/L Ethyl Benzene EPA 8020 < 0 5 ug/L Total Xylenes EPA 8020 < 0 5 ug/L Total Xylenes EPA 8020 < 0 5 ug/L t-Butanol EPA 8260< 20 ug/L ETBE EPA 8260 < 5 ug/L Diisopropyl Ether (DIPE) EPA 8260 < 5 ug/L MTBE EPA 8260 < 5 ug/L TAME EPA 8260 < 5 ug/L Laboratory Known Analysis (LCS) i Test Method Results Expected Recovery TPH as Gasoline (AQ) EPA 8015M409 0 500 0 81 80$ TPH as Gasoline (AQ) EPA 8015M409 4 500 0 81 88% TAH as Diesel in water EPA 8015M 0 84 1 00 84 00% TPH as Diesel in water EPA 8015M 0 80 1 00 80 00%, Benzene EPA 8020 3 7 3 5 105 71% ' Benzene EPA 8020 3 3 3 5 94 299. Toluene EPA 8020 16 0 14 0 114 29%� Toluene EPA 8020 14 4 14 0 102 66W ' Ethyl Benzene EPA 8020 4 6 4 0 115 00% Ethyl Benzene EPA 8020 4 4 4 0 110 00% Total Xylenes EPA 8020 25 4 22 5 112 89% ' Total Xylenes EPA 8020 24 3 22 5 108 00% t-Butanol EPA 8260 272 250 108 80% ETBE EPA 8260 50 50 100 00% Diisopropyl Ether (DIPE) EPA 8260 58 50 116 00% ' MTBE EPA 8260 55 50 110 00% TAME EPA 6260 49 50 98 00% ' Matrix Spike/Matrix Spike Duplicates MS MSD (%;) Test Method Recovery Recovery RPD TPH as Gasoline (AQ) EPA 8015M 85 80 86 72 1 07 TPH as Gasoline (AQ) EPA 8015M 87 94 82 10 5 46 Benzene EPA 8020 100 00 94 29 2 66 ' PRINTED ON RECYCLED PAPER