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OilLancasterlysis Re ort Laboratories Ana y p 2425 New Holland Pike PO Sox 12425 Lancaster PA 17605-2425•717 656 2300 Fax 717-656.2661•www lancasterlabs corn Page 1 of 1 Lancaster Laboratories Sample No WW 4311244 MW-3-W-040713 Grab Water Facility# 96171 Job# 385121 GRD 6633 Pacific-Stockton 70607700035 MW-3 Collected 07/13/2004 10 35 by HK Account Number 10906 Submitted 07/15/2004 09 10 ChevronTexaco Reported 07/23/2004 at 15 52 6001 Bollinger Canyon Rd L4310 Discard 08/23/2004 San Ramon CA 94583 M3PAC As Received CAT As Received Method Dilution No Analysis Name CAS Number Result Detection Units Factor Limit 01726 TPH-GRO - Waters n a 4,600 1 000 ug/1 20 The reported concentration of TPH-GRO does not include MTBE or other gasoline constituents eluting prior to the C6 (n-hexane) TPH-GRO range start time 06054 BTEX+MTBE by 8260B 02010 Methyl Tertiary Butyl Ether 1634-04-4 N D # 3 ug/l 5 05401 Benzene 71-43-2 N D # 3 ug/l 5 05407 Toluene 108-88-3 N D # 3 ug/1 5 05415 Ethylbenzene 100-41-4 N D # 3 ug/1 5 06310 Xylene (Total) 1330-20-7 N D # 3 ug/1 5 The reporting limits for the GC/MS volatile compounds were raised due to the level of non-target compounds State of California Lab Certification No 2116 Laboratory Chronicle CAT Analysis Dilution No Analysis Name Method Trial# Date and Time Analyst Factor 01728 TPH-GRO - Waters N CA LUFT Gasoline 1 07/19/2004 01 37 Michael F Barrow 20 Method 06054 BTEX+MTBE by 8260B SW-846 8260B 1 07/19/2004 13 50 Shawn J Rice 5 01146 GC VOA Water Prep SW-846 5030B 1 07/19/2004 01 37 Michael F Barrow n a 01163 GC/MS VOA Water Prep SW-846 50302 1 07/19/2004 13 50 Shawn i Rice n a i #--Laboratory MethodDetectton Limit exceeded target detection limit N D=Not detected at or above the Reporting Limit