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JAN 04 199 03 31PM SEQUOIA/SAC P 12 <br /> 680 Chesapeake Drive Redwood City, -A 94063 (650)364-9600 PAX(650)364-9233 <br /> Sequoia 404 N Wiget Lane Walnut Creek,CA 94598 (925)988-9600 FAX(925)989-9673 <br /> 819 Striker Avenue,Suite 8 5acralrnento,CA 95834 (916)921-9600 FAX(9 16)921.0100 <br /> ,5) Analytical 1445 McDowell Btvd North,Ste D Petaluma,Co 94954 (701)791-1865 fAX(107)792-0352 <br /> Pacific Environmental Group-Sac Projecl Unocal 0123,Tracy,CA Sampled 10/22/98 <br /> 11315 Sunrise Gold Circle St M ProlectNumber 910-017 lA Reported )0130198 <br /> Rancho Cardava,CA 95742 Pro ect Mara erMike Mrtchener Rcportcd 10/30/98 <br /> Volatile Crgable Compounds by ESA Method 8010BIQ02lfty C011001 <br /> Sequoia Analytical-Sacramento <br /> Dato Spike Sample QC Reporting Limit Recov RPD RPD <br /> lArtalyto Analymd Level Result Rcsult Units Reoov Limits % Lunrt % Notes* <br /> Extr OB rpm <br /> Batch. 8100315 Date prepared- 10/27196 <br /> Dl� ay 00:15_BLK1 <br /> Bromodichloromethanc 10/27/98 ND ug/l 0,500 <br /> Bromoform ND 0.500 <br /> Btomamethane <br /> ND " 100 <br /> Carbon tetrachlonde ND " 0 600 <br /> Chlorobenzene " <br /> ND " 0.500 <br /> Chlorocthane VD 100 <br /> 2-Chloroelhylvinyl ether ND 100 <br /> Chloroform ND 0.500 <br /> ND 1.00 <br /> Chlorotneihme <br /> Dibromochloromethanc ND 0,500 <br /> 1,3-Dichlorobenzene ND 0 500 <br /> ND 0 500 <br /> 1,4-Dichlorobenzene <br /> " <br /> „ ND 0.500 <br /> 1,2-Dichlorobenzene ND 0 500 <br /> „ <br /> 61 <br /> 1,1-Dichloroethane ND 0 500 <br /> ,2-Dichloroethanc +` <br /> ND 0.500 <br /> I,1-Dichloroethene <br /> cia-1,2-Dtchiorocthene " ND 0 500 <br /> " <br /> ND 0 500 <br /> trans-l,2-D rchloro a th m e <br /> , �� <br /> O.s00 <br /> 1,2-Dichloropropane0 500 <br /> ND , <br /> cls-1,3-Dlchloropropene ND 0 500 <br /> +� " <br /> trans-l,3-Dichloropropene 500 <br /> Methylone chloride ND " <br /> 0.500 <br /> 1,1,1,2-Tetrachloroethane <br /> -reftarEaroolhene " ND 0 500 <br /> 1,1,1-Trtchloroethaac ND 0 500 <br /> 0,500 <br /> 1,1,2-'in&loroethane ND „ <br /> ND 0.500 <br /> Trichloroethene <br /> ND 0.900 <br /> Trichlorofluoromethane 200 <br /> Vm l chloride ND <br /> Surrogate Bromochloromethane 10 0 8 70 " 70 0-130 87 0 <br /> Surrogate 2-Chlorotoluene 100 710 " 700-130 710 <br /> US 8140315-ESl <br /> Chiorobenzene 10!27198 200 18 2 Ug/1 70 0-130 91 0 <br /> 1,1-Dichloroethane 10D 10 7 65 0-135 107 <br /> 'trichloroethene too 100 <br /> It 70 0-130 100 <br /> 10 0 910 70 0-130 91 0 <br /> Surrogate13rornoohlorDmethane 70 0-J30 87 D <br /> Surrogale 1-Chlorotoluena 100 870 " <br /> equora Analytical-Sacramento "`Refer to end of report for text of notes and defnihons <br /> /'�Z' C—"—ftT <br /> ire <br /> Lynda C Schneider,Laboratory Dctor PagC 10 of 12 <br />