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Waster <br /> Laboratories Analysis Report <br /> 2425 New Holland Pike,PO Box 12425,Lancaster,PA 17605-2425•717-656-2300 Fax:717-656-2681•www.lancasterlabs.com <br /> Page 2 of 4 <br /> ' Quality Control Summary <br /> Client Name: Chevron Environmental Mgt. Co. Group Number: 1013540 <br /> ' Reported: 11/21/06 at 12:19 PM <br /> Sample Matrix Quality Control <br /> Unspiked (UNSPK) = the sample used in conjunction with the matrix spike <br /> Background (BKG) = the sample used in conjunction with the duplicate <br /> ' MS MSD MS/MSD RPD BKG DUP DUP Dup RPD <br /> Analysis Name %REC %REC Limits RPD MAX Conc Conc RPD Max <br /> TPH-DRO (C10-C25) Water 76 79 59-128 2 20 <br /> Batch number: 06314A54A Sample number(s) : 4911455-4911461 UNSPK: 4911457 <br /> TPH-GRO - Waters 142 133 63-154 7 30 <br /> Benzene 116 116 78-131 0 20 <br /> Toluene 113 113 78-129 0 30 <br /> Ethylbenzene 115 115 75-133 1 30 <br /> Total Xylenes 115 115 84-131 0 30 <br /> ' Batch number: 06314WAJO26 Sample number(s) : 4911455-4911461 UNSPK: 4911457 <br /> Naphthalene 100 97 74-108 3 30 <br /> Acenaphthylene 98 97 83-109 1 30 <br /> Acenaphthene 97 97 86-106 1 30 <br /> ' Fluorene 96 95 77-115 2 30 <br /> Phenanthrene 100 98 56-132 2 30 <br /> Anthracene 89 87 34-130 2 30 <br /> Fluoranthene 107 107 57-129 0 30 <br /> Pyrene 102 99 63-125 3 30 <br /> Benzo(a)anthracene 103 101 70-114 2 30 <br /> ' Chrysene 104 103 67-117 1 30 <br /> Benzo(b)fluoranthene 108 105 45-140 4 30 <br /> Benzo(k)fluoranthene 119 116 52-126 3 30 <br /> Benzo(a)pyrene 84...__ 74 1-149 13 30 <br /> Zndeno(1,2,3-cd)pyrene 117* 114 _ 60-116 3 30 <br /> Dibenz(a,h)anthracene -12`4*/ 121* 52-119 2 30 <br /> Benzo(g,h,i)perylene 109 102 47-118 7 30 <br /> Batch number: 06316A54A Sample number(s) : 4911454 UNSPK: P912456 <br /> Benzene 104 78-131 <br /> Toluene 105 78-129 <br /> ' Ethylbenzene 107 75-133 <br /> Total Xylenes 106 84-131 <br /> ' Surrogate Quality Control <br /> Surrogate recoveries which are outside of the QC window are confirmed <br /> unless attributed to dilution or otherwise noted on the Analysis Report. <br /> ' Analysis Name: TPH-DRO (C10-C25) Water <br /> Batch number: 063140011A <br /> Orthoterphenyl <br /> 4911455 94 <br /> ' 4911456 110 <br /> 4911457 98 <br /> 4911458 105 <br /> 4911459 109 <br /> 4911460 97 <br /> 4911461 95 <br /> ' Blank 81 <br /> *-Outside of specification <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 />