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4 <br /> Sequoia U 885 Jarvis Drive <br /> Morgan Hill,CA 95037 <br /> (408) 776-96 <br /> f �„# Analytical FAX(408) 782-6308 <br /> ATC Associates,Inc. Project: SUSD/Corporation Yard Sampled: 2/23/99 to 2/24/99 <br /> I` 1 117 Lone Palm Ave.,Suite B Project Number: na Received: 3/1/99 <br /> Modesto,CA 95351 Project Manager: Tom Lutterman Reported: 9/3/99 <br /> ��" �r �-Volatiledrganic Ci►mpoundS by EPA Method BZdOB/Quality Cantrol �"' "�`_ �'��``�=� <br /> Date Spike Sample QC Reporting Limit Recov. RPD RPD j <br /> Analyte -__ Analyzed Level Result Result Units Recov.Limits % Limit % Nates* <br /> r Blank 9030221-BLK3 <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 - ND " 5.00 <br /> Ethanol ND 200 <br /> Ethyl tert-butyl ether ... ND 5.00 <br /> Methyl tert-butyl ether __ 5.00 <br /> Surrogate: Dibromofluoromethane:' 50.0 50.0 80.0-120 <br /> Surrogate: 1,2-Dichloroethane-d4- 50.0 51.6 80.07120 103 <br /> Surrogate: Toluene-d8 50.0 49.5 81.0-117 99.0 <br /> Surrogate: 4-Bromofluorobenzene 50.0 51.6 H 74.0-121 103 <br /> 9030221-BS1 <br /> iyl tert-bury!ether _ 319199 _ 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 46.7 81.0-117 93.4 <br /> Surrogate: 4-Bromofluorobenzene 50.0 51.5 74.0-121 103 <br /> LCS 9030221-BS2 <br /> Methyl tert-butyl ether 3/10/99 50.0 47.4 ug/kg 70.0-130 94.8 <br /> Surrogate: Dibromofluoromethane 50.0 53.6 80.0-120 107 <br /> Surrogate: 1,2-Dichlaroethane-d4 50.0 56.4 80.0-120 113 <br /> Surrogate: Toluene-d8 50.0 48.4 81.0-117 96.8 <br /> Surrogate 4-Bromofluorobenzene 50.0 53.1 74.0-121 106 <br /> LCS 9030221-BS3 <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 80.0-120 104 <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 /> Matrix Spike 9030221-MS] P903097-23 <br /> _Methyl tert-butyl ether 3/9/99 50.0 ND 52.0 ug/kg 70.0-130 _104 <br /> Surrogate: Dibromofluoromethane 50.0 49.2 1 80.0-120 98.4 <br /> Surrogate: 1,2-Dichloroethane-d4 50.0 55.5 80.0-120 111 <br /> Surrogate: Toluene-d8 50.0 45.7 81.0-117 91.4 <br /> Surrogate: 4-Bromofluorobenzene 50.0 47.2 74.0-121 94.4 <br /> Sequoia Analytical-Petaluma *Refer to end of report for text of notes and definitions. ! <br /> Page 26 of 28 j <br />