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Sequoia 1455 McDowell Blvd North Ste D <br /> f etaluma CA 94954 <br /> �„� Analytical 7fl" '92 1865 <br /> FAX f707) 79Z 0342 <br /> 1elta Environmental Consultants Project Exxon Sampled 614/99 <br /> 3164 Gold Camp Dr Suite 200 Project Dumber D093-309/7-3708 Received 6/8199 <br /> Rancho Cordova CA 95670 Project Manager Jim Brownelt Reposed 6,28l"i � <br /> ' Volatile Organic Compounds by EPA Method 8260E/Quality Control <br /> Sequoia Analytical- Petaluma <br /> Date Spike Sample QC Reporting Ltmrt Recov RPD RPD <br /> Analyte Analyzed Level Result Result Units Recov Limits % Limit <br /> Batch 9060419 Date Prepared 6114199 Ertractian Method EPA 5030 craters <br /> Blank 9060419-BLKI <br /> 3ert-amyl methyl ether 6/14/99 ND UgIl 1 00 <br /> Tert-butvl alcohol ND 20 0 <br /> Di-isopropyl ether ND 1 00 <br /> 1,2-Dibromoethane(CDB) ND 0 500 <br /> 1 2-Dichloroethane ND 0 500 <br /> thanol ND 100 <br /> thyl tett-butyl ether ND 1 00 <br /> Methyl tart butyl ether ND 0 500 <br /> Surrogate Drbromofl,4oro,7ze!hane -) 00 489 860-118 913 <br /> urrogate 1 2 Dirhlaroelhane-d4 500 509 800-120 102 <br /> arrogate Toluene-d8 5 00 4 70 880-110 940 <br /> Surrogate -J Brornofuoroben_ene 500 4 65 869-115 9.3 0 <br /> k,tnk_,m <br /> 9060419-BLK2 <br /> vI methvi ether 6,17199 ND ig I 1 00 <br /> Tert-butyl alcohol ND 20 0 <br /> Uisopropyl ether ND 1 00 <br /> [--Dibrorrioethane tFDB) ND 0 500 <br /> 1,2-Dtchloroethane ND 0 500 <br /> (tethyl <br /> hanol ND 100 <br /> hyl tort-butyl ether ND __ E 00 <br /> tert-butyl ether ND 0 500 <br /> Surrogate DibromofTuoromethane 500 524 860-118 105 <br /> arrogate 12 Dtchloroethane-d4 500 4 84 800-120 968 <br /> arrogate Toluene-d8 500 512 880-110 102 <br /> Surrogate 4-8romofluorobenrene 500 507 860-115 101 <br /> lank 90604I9-BLK3 <br /> ert-amyl methyl ether 6/17/99 ND ug/l 1 00 <br /> Tert-butyl alcohol ND 200 <br /> �t-isopropyl ether ND 1 00 <br /> 2-Dsbromoethane(EDS) ND 0 500 <br /> 1,2-Dschloroethane ND 0 500 <br /> (tethyl <br /> hanol ND 100 <br /> hyl tert-butyl ether ND 1 00 <br /> tent-butyl ether ND 0 500 <br /> Surrogate Dt6romofluoromethane <br /> 500 513 860-118 105 <br /> Iurrogate 12-Dtchloroethane-d4 500 5 00 800-120 100 <br /> urrogate Toluene-d8 " 500 507 i' 880-110 101 <br /> Surrogate 4-Bromofluorobenzene 500 480 860-115 960 <br /> uoia Analytical - Petaluma "Refer to end of report for text of notes and definitions <br /> Page 5 of 7 <br />