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4., <br /> Sequoia 885 Jarvis Drive <br /> J Morgan Hill, CA 95037 <br /> Analytical <br /> (408) 776-9600 <br /> 1--� y FAX(40$) 782-6308 <br />(I <br />�h <br /> r I <br /> ATC Associates,Inc. Project: SUSD/Corporation Yard Sampled: 2/23/99 to 2/24/99 <br /> 1117 Lone Palm Ave., Suite B Project Number: na <br /> Received: 3/1/99 <br /> Modesto,CA 95351 Project Manager: Tom Lutterman Re orted: 913199 <br /> " " volatile Organic Compotinds by SPA McEliod$260B% uala Cbn rol" <br /> RR�° Segovia.Anal tical Petalutita <br /> Date Spike Sample QC Reporting Limit Recov. RPD RPD <br /> Analyte Analyzed Level Result Result Units Recov.Limits % Limit % Notes* <br /> pi Blank 9030118-BLK4 <br /> Tert-amyl methyl ether 3/11/99 ND ug/kg 5.00 <br /> Tert-butyl alcohol " ND " 100 <br /> Di-isopropyl ether ND .5.00 <br /> 1,2-Dibromoethane{EDB} ND 5.00 <br /> 1,2-Dichloroethane <br /> Ethanol ND 5.00 <br /> ND 200 <br /> Ethyl Pert-but-yl ether ND 5.00 <br /> Methyl tert-butylleether _ _ ND_ " _5.00_ <br /> Surrogate: Dibromofluoromethane. 50.0 500. 80.0-120 100 <br /> Surrogate: 1,2-Dichloroethane-d4 50.0 51.6 80.0-120 103 <br /> Surrogate., Toluene-d8 50.0 49.5 81.0-117 99.0 <br /> Surrogate: 4-Bromofluorobenzene 50.0 51.6 to74.0-121 103 <br /> ( * 9030118-BSl <br /> aw_hyl tert-butyl ether___ _ 3/4/99 50.0 48.1 ug/kg _ 70.0-130 96.2 <br /> Surrogate: Dibromofluoromethane _ 50.0 50.9 80.0-I20 102 <br /> Surrogate 1,2-Dichloroethane-d4 50.0 52.9 80.0-120 106 <br /> Surrogate: Toluene-d8 50.0 48.6 81.0-117 97.2 <br />! Surrogate: 4-8romo,>7uorobenzene 50.0 48.8 74.0-121 97.6 <br /> LCS 9030118-BS2 <br /> Methyl tert-butyl ether 3/8/99 50.0 51.0 ug/kg 70.0-130 102 <br /> Surrogate: Dibromofluoromethane 50.0 52.0 80.0-120 104 <br /> Surrogate: 1,2-Dichloroethane-d4 50.0 57.5 80.0-120 115 <br /> Surrogate: Toluene-d8 50.0 48.9 81.0-117 97.8 <br /> Surrogate: 4-Bromofluorobenzene 50.0 50.6 74.0-121 101 <br />' LCS 9030118-BS3 <br /> Methyl tert-butyl ether 3/9/99 50.0 45.5 ug/kg _70.0-130 91.0 <br /> Surrogate: Dibromofluoromethane " 50.0 50.7 80.0-120 101 <br /> Surrogate: 1,2-Dichloroethane-d4 50.0 49.4 80.0-120 .98.8 <br /> Surrogate: Toluene-d8 50.0 52.6 81.0-117 105 <br /> Surrogate: 4-Bromofluorobenzene 50.0 51.5 74.0-121 103 <br /> LCS 9030118-BS4 <br /> Methyl tert-butyl ether _ 3/11199 50.0 _ 44.6 ug/kg 70.0-130_ 89.2 _ <br /> Surrogate: Dibromofluoromethane 50.0 52.0 1180.0-120 104 <br /> Surrogate: 1,2-Dichloroethane-d4 50.0 56.3 80.0-120 113 <br /> Surrogate: Toluene-d8 50.0 43.6 81.0-117 87.2 <br />! Surrogate: 4-Bromofluorobenzene 50.0 50.3 74.0-121 101 <br /> Sequoia Analytical-Petaluma *Refer to end of report for text of notes and definitions. <br /> i <br /> i <br /> Page 24 of 28 <br />