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1455 McDowell Blvd North Ste D <br /> Sequoia Petaluma CA 94954 <br /> (707) 792-1865 <br /> Analytical FAX(707) 792-0342 <br /> Delta Environmental Consultants Project Exxon Sampled 8/26/99 to 8127/99 , <br /> 3164 Gold Camp Dr,Suite 200 Project plumber 7-0137/D099-865 Received 8130/99 <br /> Rancho Cordova,CA 95670 Project Manager Jim Brownell Reported 9/15/99 <br /> Total Petroleum Hydrocarbons as Gasoline and BTEX by EPA 8015M/8020M , <br /> Sequoia Analytical-Petaluma <br /> Batch Date Date Surrogate Reporting ' <br /> Anal e Number Prepared Analyzed L1mIts Limit Result Units Notes* <br /> SB4-48(continued) P908685-05 Sot] <br /> Xylenes(total) 9090013 9/1/99 9/1/99 000400 ND mg/kg ' <br /> Methyl tent-butyl ether 00100 ND It <br /> Surrogate a a a-Trifluorotoluene 650-135 118 % <br /> Surrogate 4-Bromofluorobenzene " " " 650-135 873 " <br /> SB4-53 P908685-06 Soil <br /> Gasoline 9090013 9/1/99 9/1199 0 400 ND mg/kg <br /> Benzene 000200 ND ' <br /> Toluene 000200 ND " <br /> Ethylbenzene 000200 ND " <br /> Xylenes(total) 000400 ND " <br /> Methyl tert-butyi ether 00100 ND <br /> Surrogate a,a,a-Trifluorotoluene 650-135 121 % <br /> Surrogate 4-Bromofluorobenzene 650-135 85 0 11 <br /> SB4-58 P908685-07 Soil <br /> Gasoline 9090013 9/l/99 9/1/99 0 400 ND mg/kg <br /> Benzene 000200 ND " <br /> Toluene 000200 ND ' <br /> Ethylbenzene 000200 ND " <br /> Xylenes(total) _ 000400 ND <br /> Surrogate a a a-Trifluorotoluene 650-135 107 % <br /> Surrogate 4-Bromofluorobenzene 650-135 863 IF <br /> 1 <br /> SB5-16 P908695-08 Soil <br /> Gasoline 9090013 9/1/99 9/1/99 0400 ND mg/kg ' <br /> Benzene 000200 ND " <br /> Toluene 000200 ND " <br /> Ethylbenzene 000200 ND " <br /> Xylenes(total) 000400 ND <br /> Surrogate a,a,a-Trifluorotoluene 650-135 115 % <br /> Surrogate 4-Bromofluorobenzene 650-135 867 11 <br /> SB5-31 P908685-09 Soil ' <br /> Gasoline 9090013 9/1/99 911/99 0400 ND mg/kg <br /> Benzene " 000200 ND " <br /> Toluene IF <br /> 11 " 000200 ND ' <br /> Ethylbenzene " 000200 ND " <br /> Xylenes(total) " " " 000400 ND IF <br /> Methyl tert_-butyl ether _ 00100 ND IF <br /> _ <br /> Surrogate a a a-Trifluorotoluene 650-135 1I6 % , <br /> Sequoia Analytical- Petaluma *Refer to end of report for text of notes and definitions <br /> Page 3 of20 ' <br />