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LancasterAnalysis Report <br /> Laboratories Y <br />' 2425 New HOBSY)d Pike PQ Box 42425 Lancaster RA 176052425 717 6562300 Fax 711 6512681 www1ancastetlab$X0171 <br /> Page l of 4 <br /> Quality control Summary <br /> I Client Name Chevron Group Number 976790 <br /> Reported 02/15/06 at 10 47 AM <br /> Matrix QC may not be reported if site-specific 4C samples were not <br /> submitted In these situations to demonstrate precision and accuracy at <br /> a batcr 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 M� <br /> Analysis Name sul ML Us <br /> Units &Ric I= Limit <br /> Batch number 060350006A Sample number(s) 4702346-4702354 <br /> Coal Tax Oil N D 0 20 tag/1 <br /> Gasoline N D 0 20 mg/1 <br /> Kerosene N D 0 20 mg/1 <br /> Diesel/#2 Fuel N D 0 20 mg/1 95 96 57-115 1 20 <br /> Mineral Spirits N D 0 20 mg/1 <br /> #6 Fuel Oil N D 1 0 mg/1 <br /> Motor 0.1 N I7 1 0 mg/1 <br /> I <br /> Batch number 06037A16A Sample numh50rls) 4102145103 105 7D-130 1 30 <br /> Tph-GRO - Waters N D <br /> Hatch <br /> Methyl Tertiary Butyl Ether N D 0 5 ug/1 99 97 7 <br /> number W060401AA Sample number{s) 4702346 4702352 3-119 2 30 <br /> Benzene N D 0 5 ug/1 107 104 85-117 3 30 <br /> Trichloroethene N D 1 ug/l 102 99 87-117 3 30 <br /> Toluene N D 0 5 ug/1 107 106 85-115 1 30 <br /> TetYachloroethene N D 0 8 ug/l 105 102 74-125 3 30 <br /> Ethylbenzene N D 0 5 ua/1 105 103 82-119 2 30 <br /> Xylene (Total) N D 0 5 ug/1 108 105 63-113 3 30 <br /> Batch number W060402AA Sample numbers) 4702353-4702354 7:1-119 <br /> Methyl Tertiary Butyl Ether N D 0 5 ug/1 97 SS-117 <br />' Benzene N D 0 5 ug/l 101 <br /> N D 1 ug/1 102 67_117 <br /> Trichloroethene 85-115 <br /> Toluene N D 0 5 ug/1 101 74-125 <br /> Tetrachlorcethene N D 0 5 ug/1 105 <br /> 82-119 <br /> Ethylbenzene N D a 5 ua%1 102 83-113 <br /> ylene (Total} <br /> Batch number Z060412AA Sample number(s) 4702345 73-119 2 30 <br /> ethyl Tertiary Butyl Ether N D 0 5 ug/1 89 91 <br /> Benzene N D 0 5 ug/l 93 93 85-117 0 30 <br /> u <br /> N D 0 5 g/l 98 101 85-115 3 30 <br /> Toluene <br /> Toluenenzene N D 0 5 ug/1 92 95 82-119 3 30 <br /> Ethylb <br /> ,Xylene (Total) N D 0 5 ug/1 5 97 83-113 2 30 <br /> Sample Matrix Quality Control <br /> Unspiked (UNSPKI the sample used in conjxsnction with the matrix spike <br /> Background iBKG) the sarrple used in conjunction with the duplicate <br /> MS MSD XS/MSD RPD BKG DUP DUP Dup RPD <br /> Analysis Name �REC %RBC Limite 10 RM onc Conc J MaxP_ <br /> Batch number 06037A16A sample numberts) 4702345 UNSPK P703573 <br /> '-Outside of specification <br /> (l) The result for one or both determinations was less than five times the LOQ <br /> I (2) The background result was more than four times the spike added <br /> I <br /> I <br />