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IDSequoia 1455 McDowell Blvd North Ste D <br /> Petaluma CA 94954 <br /> Analytical (707) 792-1845 <br /> FAX (707) 792-0342 <br /> ATC Associates,Inc Project SUSD/Franklin High School Sampled 2/24199 <br /> 1117 Lone Palm Ave,Suite B Project Number na Received 3/1/99 <br /> Modesto,CA 95351 Project Manager Tom Lutterman Reported 3/15/99 <br /> Volatile Organic Compounds by EPA Method 8260B/Quality Control <br /> Sequoia Analytical-Petaluma <br /> ' Date Spike Sample QC Reporting Limit Recov RPD RPD <br /> Analyte Analyzed Level Result Result Units Recov Lirents % Lin-at % Notes* <br /> Matrix Spike 9030174-MS1 P902644-01 <br /> Methyl ter-butyl ether 3/9/99 2000 ND 1830 ug/kg 700-130 915 <br /> Surrogate Dibromofluoromethane 1000 1830 800-120 915 <br /> Surrogate 12-Dechloroethane-d4 2000 1730 800-120 865 <br /> Surrogate Toluene-d8 2000 2030 810-117 102 <br /> Surrogate 4-Bromofluorobenzene 2000 1890 740-121 945 <br /> Matrix Spike Duo 9030174-MSD1 P902644-01 <br /> Methyl tert-butyl ether 319/99 2000 ND 1870 ug/kg 700-130 935 200 2 16 <br /> Surrogate Dibromofluoromethane 2000 1800 if 800-120 900 <br />' Surrogate 1,2-Dechloroethane-d4 2000 1650 800-120 825 <br /> Surrogate Toluene-d8 of 2000 2000 810-117 100 <br /> Surrogate 4-Bromofluorobenzene OF <br /> 2000 1920 740-121 960 <br /> ffifth 9030221 Date Prepared 319199 Extraction Method EPA 5035 <br /> k 9030221-BLK1 <br /> Tert-amyl methyl ether 3/9/99 ND ug/kg 500 <br />' Tert-butyl alcohol ND 100 <br /> Di-isopropyl ether " ND " 500 <br /> 1,2-Dibromoethane(EDB) ND Soo <br /> 1,2-Dichloroethane ND 500 <br /> Ethanol " ND " 200 <br /> Ethyl tert-butyl ether ND 500 <br /> Methyl tert-butyl ether ND 500 <br /> Surrogate Debromofluoromethane 500 477 800-120 954 <br />' Surrogate 1,2-Dechloroethane-d4 500 446 800-120 892 <br /> Surrogate Toluene-d8 Soo 500 to 810-117 100 <br /> Surrogate 4-Bromofluorobenzene OF 500 501 PI 740-121 100 <br /> Blank 9030221-BLK2 <br /> Tert-amyl methyl ether 3/10/99 ND ug/kg Soo <br /> Tert-butyl alcohol of ND 100 <br /> Di-isopropyl ether ND 500 <br /> 1,2-Dibromoethane(EDB) ND 500 <br /> 1,2-Dichloroethane ND 500 <br />' Ethanol ND 200 <br /> Ethyl tert-butyl ether ND 500 <br /> Methyl tert-butyl ether ND 500 <br /> Surrogate Debromofluoromethane 500 483 800-120 966 <br />' Surrogate 1 2-Dechloroethane-d4 500 444 800-120 888 <br /> Surrogate Toluene-d8 500 520 810-117 104 <br /> ogate 4-Bromofluorobenzene 500 520 " 740-121 104 <br /> Sequoia Analytical-Petaluma '"Refer to end of report for text of notes and definitions <br />' Page 8 of 11 <br />