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1 Sequoia 1455 McDowell Blvd North Ste D <br /> 4Petaluma CA 94954 <br /> (707) 792-1865 <br /> Analytical FAX(707) 792-0342 <br />` ATC Associates, Inc Project SUSD/Franklin High School Sampled 2/24/99 <br /> 1117 Lone Palm Ave,Suite B Project Number na Received 3/1/99 <br /> Modesto,CA 95351 Project Manager Tom Lutterman Re orted 3/15/99 <br /> Volatile Organic Compounds by EPA Method 8260B <br /> Sequoia Analytical-Petaluma <br />' Batch Date Date Surrogate Reporting <br /> Analyte Number Prepared Analyzed Limits Limit Result Units Notes* <br />' SUSD/FH-MW1-20 5 P903098-01 Soil 1 <br /> Tert-amyl methyl ether 9030174 3/8/99 3/10/99 2000 ND ug/kg <br /> Tert-butyl alcohol 40000 ND " <br /> Di-isopropyl ether 2000 ND " <br /> Ethanol 80000 ND " <br /> Ethyl tert-butyl ether 2000 ND " <br /> Methyl tert-butyl ether 2000 ND " <br /> Surrogate Drbromofluoromethane 800-120 935 % <br /> Surrogate I,2-Dichloroethane-d4 " " " 800-120 860 of <br /> Surrogate Toluene-d8 " to " 810-117 965 or <br /> Surrogate 4-Bromofluorobenzene If 740-121 985 Or <br /> SUSD/FH-MW1-25 5 P903098-02 Soil 1 <br /> Tert-amyl methyl ether 9030174 3/6/99 3/10/99 2000 ND ug/kg <br /> Wbutyl alcohol 40000 ND " <br /> sopropyl ether 2000 ND " <br /> Ethanol 80000 ND " <br /> Ethyl tert-butyl ether 2000 ND " <br /> Methyl tert-butyl ether 2000 ND " <br /> Surrogate Drbromofluoromethane 800-120 925 % <br /> Surrogate 1 2-Dichloroethane-d4 to to " 800-120 850 to <br /> Surrogate Toluene-d8 " 11 to 810-117 930 of <br /> Surrogate 4-Bromofluorobenzene 740-121 102 to <br /> SUSD/FH-MWl-35 5 P903098-03 Soil <br /> tTert-amyl methyl ether 9030221 3/9/99 3/10/99 500 ND ug/kg <br /> Tert-butyl alcohol 100 ND " <br /> Di-isopropyl ether Soo ND " <br />' Ethanol 200 ND " <br /> Ethyl tert-butyl ether 500 ND ' <br /> Methyl tert-butyl ether 500 ND <br /> Surrogate Drbromofluoromethane 11 of or 800-120 101 % <br />' Surrogate 1,2-Dichloroethane-d4 i; of80 0-120 113 01Surrogate Toluene-d8 It <br /> " 610-117 946 Of <br /> Surrogate 4-Bromofluorobenzene 740-121 100 " <br />' Sequoia Analytical-Petaluma *Refer to end of report for text of notes and def nitrons <br /> I <br /> i <br /> r <br />' Page 4 of 1 I <br />