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COLUMBIA ANALYTICAL SERVICES, INC <br /> Analytical Report <br /> Client EMCON Associates Date Received 10/28/93 <br /> Project EM CON Project No OG 71 -018 01 Service Request No SJ93-1 329 <br /> ARCO Facility No 2093 Sample Matrix Water <br /> BTEX and TPH as Gasoline <br /> EPA Methods 5030/8020/California DHS LUFT Method <br /> ug/L (ppb) <br /> Sample Name ATR-1 (26) ATR-2 (29) ATR-4(271 <br /> Date Analyzed 11/06/93 11/06/93 11/08/93 <br /> Analyte MRL <br /> Benzene 0 5 NO ND 12 <br /> Toluene 0 5 NO ND 1 2 <br /> Ethylbenzene 0 5 NO ND 7 9 <br /> Total Xylenes 0 5 NO NO 16 <br /> TPH as Gasoline 50 NO NO 200 <br /> Sample Name ATR- <br /> _ 5 (26) ATR-6 (26) ATR-7 (26) <br /> Date Analyzed 11/06/93 1 1108193 11/06/93 <br /> Analyte MRL <br /> Benzene 0 5 NO ND ND <br /> Toluene 0 5 ND NO ND <br /> Ethylbenzene 0 5 ND NO NO <br /> Total Xylenes 0 5 NO NO 1 3 <br /> TPH as Gasoline 50 63 NO NO <br /> Approved by _ l�/71il- � ti, Date ZL.10 "'�3 <br /> 4 n )4 C 1 -- - - c-- f- r^-f t.. .. .. !lC - r -- - - nn n- --c r <br />