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COLUMBIA ANALYTICAL SERVICES, INC. <br /> Analytical Report <br /> ellient. EMCON Service Request. S950622 <br /> Protect ARCO Facility No 548/EMCON Project No 1775-206 001 Date Collected 5112195 <br /> Sample Matrix Water Date Received 5115/95 <br /> Date Extracted NA <br /> Date Analyzed- 5122195 <br /> BTEX and TPH as Gasoline <br /> EPA Methods 5030/8020/Caldorma DHS LUFT Method <br /> TPH as Ethyl- Xylenes, <br /> Analyte Gasoline Benzene Toluene benzene Total <br /> Units ug/L(ppb) ug/L(ppb) ug/L(ppb) ug/L(ppb) ug/L(ppb) <br /> Method Reporting Limit 50 05 05 05 05 <br /> Sample Name Lab Code <br /> MW-1 (56) 5950622-001 84 4 7 41 17 65 <br /> MW-2 (6 1) S950622-002 ND ND ND ND ND <br /> MW-3 (62) S950622-003 100* ND ND ND ND <br /> MW-4 (63) 5950622-004 ND ND ND ND ND <br /> MW-5 (6 1) 5950622-005 5,000 560 110 400 600 <br /> MW-6 (58) S950622-006 ND ND ND ND ND <br /> Method Blank 5950522-WBI ND ND ND ND ND <br /> * This sample contains discrete compounds, quart fied as gasoline The chromatogram does not match the typical <br /> gasoline fingerprint <br /> Approved BN Date ✓��p <br /> 5ARTWASl061694 <br /> 0622%LS Wgbt" 5r26y95 PWNo <br /> 1921 Ringwood Avenue * Son lose California 95131 • Telephone 4081407 2400 * fax 408/407-9356 3 <br />