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819 Striker Avenue,Suite 8 <br /> • Sacramento,CA 95834 <br /> e la (916)921-9600 <br /> FAX(916)921-0100 <br /> Analytical www.sequoialabs.com <br /> o <br /> EMCON/IT-Sacramento Project: Foothill Landfill,San Joaquin County Sampled: 7/14/00 <br /> 1433 N.Market Blvd.,#1 Project Number: IT#791289/16037-200.000 Received: 7/14100 <br /> Sacramento,CA 95834 Project Mana er: Steve Giacomini Reported: 8/4/00 <br /> Volatile Organic Compounds by EPA Method 826011/Quality Control <br /> Sequoia Analytical-Petaluma <br /> Date Spike Sample QC Reporting Limit Recov. RPD RPD <br /> Analyte Analyzed Level Result Result Units Recov.Limits % Limit % Notes* <br /> Blank(continued) 0070596-BLK2 <br /> o-Xylene 7/26/00 ND ug/I 0.500 U <br /> Surrogate: Dibromofluoromethane 5.00 5.11 86.0-118 102 <br /> Surrogate: 1,2-Dichloroethane-d4 5.00 4.90 80.0-120 98.0 <br /> Surrogate: Toluene-d8 5.00 5.22 88.0-110 104 <br /> Surrogate: 4-Bromofluorobenzene 5.00 5.17 86.0-115 103 <br /> LCS 0070596-BSI <br /> Benzene 7/26/00 5.00 5.45 ug/1 79.7-114 109 <br /> Chlorobenzene 1. <br /> 5.00 5.55 " 80.5-114 111 <br /> i1,1-Dichloroethene 1. 5.00 5.08 " 76.9-117 102 <br /> Toluene " 5.00 5.45 0. 79.8-113 109 <br /> Trichloroethene 1. 5.00 5.63 " 78.4-114 113 _ <br /> Surrogate: Dibromofluoromethane 115.00 5.22 86.0-118 104 <br /> Surrogate: 1,2-Dichloroethane-d4 '/ 5.00 5.14 " 80.0-120 103 <br /> Surrogate: Toluene-d8 " 5.00 .5.29 '° 88.0-110 106 <br /> Surrogate: 4-Bromofluorobenzene to 5.00 5.13 to 86.0-115 103 <br /> LCS 0070596-BS2 <br /> Benzene 7/26/00 5.00 5.33 ug/1 79.7-114 107 <br /> Chlorobenzene 5.00 5.41 1180.5-114 108 <br /> 1,1-Dichloroethene " 5.00 5.00 " 76.9-117 100 <br /> Toluene " 5.00 5.27 " 79.8-113 105 <br /> Trichloroethene " 5.00 5.48 " 78.4-114 110 <br /> Surrogate: Dibromofluoromethane 5.00 5.18 86.0-118 104 <br /> Surrogate: 1,2-Dichloroethane-d4 115.00 4.99 80.0-120 99.8 <br /> Surrogate: Toluene-d8 5.00 5.18 88.0-110 104 <br /> Surrogate: 4-Bromofluorobenzene 5.00 4.87 86.0-115 97.4 <br /> Matrix Spike 0070596-MSI P007289-05 <br /> Benzene 7/26/00 5.00 ND 5.40 ug/I 79.7-114 108 <br /> Chlorobenzene 11 5.00 ND 5.39 80.5-114 108 <br /> 1,1-Dichloroethene 1. 5.00 0.162 5.26 " 76.9-117 102 <br /> Toluene 5.00 ND 5.36 0179.8-113 107 <br /> Trichloroethene to5.00 0.733 6.10 1178.4-114 107 <br /> ' Surrogate: Dibromofluoromethane 5.00 5.14 86.0-118 103 <br /> Surrogate: 1,2-Dichloroethane-d4 115.00 5.10 11 80.0-120 102 <br /> Surrogate: Toluene-d8 of5.00 5.03 to88.0-110 101 <br /> Surrogate: 4-Bromofluorobenzene 5.00 4.73 86.0-115 94.6 <br /> Matrix Spike Dun 0070596-MSDI P007289-05 <br /> Benzene 7/26/00 5.00 ND 5.34 ug/1 79.7-114 107 20.0 0.930 <br /> Sequoia Analytical-Sacramento *Refer to end of report for text of notes and definitions. <br /> Page 19 of 21 <br />