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COLUMBIA ANALYTICAL SERVICES, INC <br /> Analytical Report M <br /> Client EMC0\ Associates Service Request 5950210 <br /> Project aRCO Faciliti No 2168/EMCON project No 1775-234 01 Date Collected 2/16/95 <br /> Sample Matrix Nater Date Received- 2/21/95 <br /> Date Extracted NA <br /> Date Analyzed- 2/27,28/95 <br /> BTEX and TPH as Gasoline <br /> EFA Methods 5030/8020/California DHS LUFr Method <br /> TPR as Ethyl- Xylenes, <br /> Analvtc Gasoline Benzene Toluene benzene Total <br /> Units ug/L(ppb) ug/t,(ppb) ttg/L(ppb) ug/l,(ppb) ug/L(ppb) <br /> Method Reporting Limit 50 05 0 5 05 05 <br /> Sample Dame Lab Code <br /> MW-1 (54') S950210-001 36 000 11000 460 990 3,200 <br /> MW-2 (53') 5950210-002 36,000 6,300 4 600 610 2,700 <br /> MW-3 (53') 5950210-003 37,000 14000 340 2,100 470 <br /> MW-4 (58') 5950210-004 77,000 9200 13 000 1,700 8,000 <br /> MW-5 (59') S950210-005 180,000 8 500 15 000 2,200 12,000 <br /> MW-6 (47') 5950210-006 39,000 6 400 5,200 850 4,400 <br /> Method Blank 5950227-WB 1 NO NO NO ND NO <br /> Method Blank S950228-WB1 NO NO NO ND ND <br /> Approved Br `� Date 3 , 1 S <br /> 5ABTXGAS/061694 <br /> Page 3 <br /> 1971 41inr-14-1- oro ZA r i Ar%Q IAn'? -$Af%r% r_ Ae%Oo An' MneL <br />