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Lancaster rt <br /> . Laboratories Analyses Repo <br />' 2425 New Holland Pike PO Box 12425 Lancaster PA 77605.2425•717 656 2300 Fax 717-65r,2601-WWW IaMas[9flabs cOM <br /> Page I of 3 <br /> Quality Control Summary <br />' Client Nasse Chevron Group Number 998443 <br /> Reported 08/01/06 at 10 57 AM <br /> Matrix QC may not be reported if site-specific QC samples were not <br /> submitted In these situations to demonstrate precision and accuracy at <br /> a batch level a LCS/LCSD was performed, unless otherwise specified in the <br /> method <br /> Laboratory Compliance Quality Control <br /> Blank Blank Report LCS LCSD LCS/LCSD <br /> Aaalysi>1_Nam® Result: MDL UnIts ARE %REC Li=!;& RPP XPI) Max <br /> I Batch number 062050022A Sample number(a) 4821621-4821633 <br /> Coal Tar Oil N D 200 mg/l <br /> Gasoline N D 200 mg/l <br /> Kerosene N D 200 mg/l <br /> Diesel/)(2 Fuel N D 200 mg/l 93 93 53-120 1 20 <br /> Mineral spirits N D 200 mg/l <br /> I 116 Fueloil N D 1,000 mg/1 <br /> Motor Oil N D 1,000 mg/1 <br /> Batch number 0620BA54A Sample number(s) 4821620 <br /> TPH-GPO - waters N D 50 ug/1 115 117 70-130 2 30 <br /> Rarch number D062063AA Sample number(s) 4821620 <br /> Methyl Tertiary Butyl Ether N D 0 5 ug/l 84 73-119 <br /> Benzene N D 0 5 ug/l 87 85-117 <br /> Toluene N D 0 5 ug/l 92 85-115 <br /> Ethylbenzene N D 0 5 ug/l 85 82-119 <br /> Xylene (Total) N D 0 5 ug/l 90 83-113 <br /> Batch number W062061AA Sample number(s) 4821621-4821633 <br /> Methyl Tertiary 8uty1 Ether N D 0 5 ug/l 97 73-119 <br /> Benzene N D 0 5 ug/1 100 95-117 <br /> Trichloroethene N D 1 ug/l 98 67-117 <br /> I Toluene N D 0 5 ug/l 100 85-115 <br /> Tetrachloroethene N D 0 8 ug/1 104 74-125 <br /> Ethylben2ene N D 0 5 ug/1 99 92-119 <br /> Xylene (Total) N D 0 5 ug/1 103 83-113 <br /> I Hatch number NG62061AB Sample number(s) 4821624,4821627 <br /> Tetrachloroethene N D 0 8 ug/l 104 74-125 <br /> Sample Matrix Quality Control <br /> Unspiked (UNSHK) = the sample used in conjunction with the matrix spike <br /> Background (BKG) - the sample used in con3unction with the duplicate <br /> MS MSD MS/MSD RFD BKG DQp DUP pup RPD <br /> Analvsis Name %REC $RFC Limi to REP MAX Conc Conc RFD D[ax <br /> Batchnumner 06208A54A Sample number(s) 4821620 UNSPK P821616 <br /> TPH-GRO - Waters 106 63-154 <br /> Batch number 0062063AA Sample number(s) 4821620 UNSPK P820122 <br /> Methyl Tertiary Butyl Ether 87 84 69-127 3 30 <br /> Benzene 95 92 83-128 3 30 <br /> Toluene 97 96 83-127 1 30 <br /> *-Outside of SpeCit7Cat[on <br /> (1) The result for one or both determinations was less than five times the LOQ <br /> (2) The background result was more than four times the spike added <br /> I <br />