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1f 455 McDowell Blvd North Ste D <br /> Sequoia Petaluma CA 94954 <br /> (707) 792 1865 <br /> Analytical FAX (707) 792-0342 <br /> 10 <br /> I3elta Environmental Consultants Project Exxon Sampled 5/26/99 to 5127/99 <br /> 164 Gold Camp Dr Suite 200 Project Number 7-3708/1]093-809 Received 5/28/99 <br /> ancho Cordo,.a CA 95670 Project Manager Jim Brownell Reported 6121/99 <br /> Volatile OrgamL Compounds by EPS,. Method 8260B,Qualitr Control <br /> Sequoia analytical - Petaluma <br /> Date Spike Sample QC Reporting Limit RCLO, RPD RPD <br /> Analyte Analyzed Level Result Result Units Recov Limits °% Limit % Notes <br /> Iatric S il.e Dup 9060176-iNISDI P906018-05 <br /> ethyl tert-butyl ether 6/6/99 50 0 744 644 ug k- 75 8-124 114 35 0 1 74 <br /> Methyl tert-butyl ether 50_0_ __7-4_4 644 75 8-[24 114 35 0 1 74 <br /> �arrogate Dibromoflaoromethunc 500 495 800-120 990 <br /> irrogate Dibromofluoromethane 500 495 800-120 990 <br /> Surrogate 1 2 Dichloruethan, c(4 50 0 55 9 800-120 112 <br /> urroga'e Toluene d8 500 51 8 81 0-117 104 <br /> arrogate 4 Br omofruoroben_e.ne 500 53 4 74 0-121 107 <br /> Batch 9060197 Date Prepared 6_/7/99 Extraction Method EPA 5035 <br /> lank 9060197-BLK1 <br /> ethyl ten-butyl ether _ 6/7199 _\D ug kg 7 00 <br /> Surrogate Dibromofluoronrethane JO 0 53 4 80 0-120 10/ <br /> n k 9060197-B L K2 <br /> krrogale <br /> hyl ten-butyl ether 6/8199 ND USI<u 5 00 <br /> Dihromofluorumethan, 500 54 4 800-120 109 <br /> Uc,tshyl <br /> 9060197-BSI <br /> cert butyl ether 6/7/99 50 0 - _ 51 9 ug tis 75 8-12-k 104 _ _ - <br /> iurrogate Dibromofluorometharre 500 53 8 80 0-1 20 108 <br /> cs 9060197-BS2 <br /> Methyl ten-butyl ether 6/8/99 _ 50 0 53 t ug/kg 75 8-124 106 <br /> tsurrogate Dibromofluoromethane 500 541 800-120 108 <br /> atrix Spike 9060197-iv[SI P906019-09 <br /> Methyl tert-butyl ether_ 6/7199 500 ND 55 2 ug�kg 75 8-124 110It <br /> rrogate Dibromofluoromethane 1500 48 1 800-120 962 <br /> _Matrix Spike Dup 9060197-iY[SD1 P9060][9-09 <br /> trogate <br /> thyl tert butyl ether 6/7/99 50 0 _ ND 60 6_ u&,Kg _75 8-I24 121 35 0— 9 52 <br /> Dibromofluororrrethane e50 0 54 5 80 0-120 109 <br /> Batch 9060198 Date Prepared 617199 Extraction Method EPA 5030 soils Iy[eOH <br /> V-aIankm 9060198-BLK1 <br /> yl methyl ether 619/99 ND ug/kg 1000 <br /> Tert-butyl alcohol ND 20000 <br /> 0i-isopropyl ether ND 1000 <br /> 2-Dibromoethane(EDB) " ND 1000 <br /> ,2-Dichloroethane ND 1000 <br /> not ND 40000 <br /> iv <br /> quoia Analytical - Petaluma `Refer to end ofreport for text ofnotes and definitions <br />' Page 44 of 49 <br /> t� _ <br />