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BC Laboratories, Inc S <br /> TRC Alton Geoscience Project 11192 <br /> 21 Technology Drive Project Number [none] <br /> Irvine CA,92618-2302 Project Manager An}u Farfan Reported 09/12/05 14 35 <br /> Volatile Organic Analysis (EPA Method 8260) <br /> BCL Sample ID 0508601-03 Client Sample Name 11192, S-3, S-3, 8/29/2005 1120 OOAM, Ben Summersett <br /> Prep Run Instru- QC MB Lab <br /> Constituent Result Units PQL MDL Method Date Daterrime Analyst ment ID Dilution Batch ID Bias Quals <br /> Benzene 1 2 ug1L 0 50 0 12 EPA-8260 08/31/05 09/01/05 0422 Irf MS-V9 1 B010046 ND <br /> 1,2-Dibromoethane ND uglL 0 50 Oil EPA-8260 08/31/05 09/01/05 0422 Irf MS-V9 1 B010046 ND W <br /> 1,2-Dichloroethane 4 6 ug1L 0 50 025 EPA-8260 08/31/05 09/01/05 0422 Irf MS-V9 1 B010046 ND <br /> Ethylbenzene ND ug1L 050 0 13 EPA-8260 08/31/05 09/01/05 0422 Irf MS-V9 1 8010046 ND <br /> Methyl t-butyl ether 0 31 uglL 0 50 0 15 EPA-8260 08/31/05 09/01/05 0422 Irf MS-V9 1 8010046 ND 1 <br /> Toluene ND ug1L 0 50 015 EPA-8260 08/31/05 09/01/05 0422 Irf MS-V9 1 B010046 ND <br /> Total Xylenes ND uglL 1 0 040 EPA-8260 08/31/05 09/01/05 0422 Irf MS-V9 1 B010046 ND <br /> t-Amyl Methyl ether ND uglL 050 0 31 EPA-8260 08/31/05 09/01/05 0422 Irf M349 1 B010046 ND <br /> t-Butyl alcohol ND uglL 10 10 EPA-8260 08/31/05 09/01/05 0422 Irf MS-V9 1 B010046 ND <br /> Diisopropyl ether 80 uglL 5 0 2 5 EPA-8260 09/07/05 09/07/05 1543 MWB MS-V9 10 B010244 ND A01 <br /> Ethanol ND uglL 1000 110 EPA-8260 08/31/05 09/01105 0422 Irf MS-V9 1 8010046 ND <br /> Ethyl t-butyl ether ND uglL 050 027 EPA-8260 08/31/05 09/01/05 0422 Irf MS-V9 1 8010046 ND <br /> Total Purgeable Petroleum 240 uglL 50 23 EPA-8260 08/31/05 09/01/05 0422 Irf MS-V9 1 B010046 ND <br /> Hydrocarbons <br /> 1,2-Dschloroethane-d4(Surrogate) 109 % 76- 114 (LCL-UCL) EPA-8260 08/31/05 09/01/05 0422 Irf MS-V9 1 8010046 <br /> 1,2-Dichloroethane-d4(Surrogate) 102 % 76-114 (LCL-UCL) EPA-8260 09/07/05 09/07/05 1543 MWB MS-V9 10 8010244 <br /> Toluene-d8(Surrogate) 984 % 88-110 (LCL-UCL) EPA-8260 09/07/05 09/07/05 1543 MWB MS-V9 10 B010244 <br /> Toluene-d8(Surrogate) 94 5 % 88-110 (LCL-UCL) EPA-8260 08/31/05 0901105 0422 Irf MS-V9 1 B010046 <br /> 4-Bromofluorobenzene(Surrogate) 861 % 86-115 (LCL-UCL) EPA-8260 08/31/05 09/01/05 0422 Irf MS-V9 1 B010046 <br /> 4-Bromofluorobenzene(Surrogate) 87 8 % 86-115 (LCL-UCL) EPA-8260 09/07/05 09/07/05 1543 MWB MS-V9 10 8010244 <br /> BC Laboratories The results in this report apply to the samples analyzed in accordance with the chain of custody document This analytical report must be reproduced in its enttrety <br /> All results listed in this report are for the exclusive use of the submitting parry BC Laboratories Inc assumes no responsibility for report alteration separation detachment or third parry interpretation <br /> 4100 Atlas Court- Bakersfield,CA 93308 4 (661)327-4911 •FAX(661) 327-1918-www bclabs corn Page 5 of 12 <br />