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Lancaster <br /> Laboratories Analysis Report <br /> 2425 New Holland Pike,PO Box 12425,Lancaster,PA 17605-2425•717-656-2300 Fax:717-656-2681•www.lancasterIabs.com <br /> Page 1 of 4 <br /> Quality Control Summary <br /> Client Name: Chevron Environmental Mgmt Co Group Number: 1171842 <br /> Reported: 12/07/09 at 08:17 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 /> Analysis Name Result Program Units %REC %REC Limits RPD RPD Max <br /> RL <br /> Batch number: G093281AA Sample number(s) : 5842644-5842645 <br /> Benzene N.D. 0.1 ug/l 99 99 80-120 0 30 <br /> Ethylbenzene N.D. 1. ug/l 100 100 80-120 0 30 <br /> Toluene N.D. 1. ug/l 101 101 80-120 0 30 <br /> Xylene (Total) N.D. 1. ug/l 102 101 80-120 1 30 <br /> Batch number: 09324WABO26 Sample number(s) : 5842644 <br /> Acenaphthene N.D. 0.01 ug/l 114 120* 68-116 5 30 <br /> Acenaphthylene N.D. 0.01 ug/l 114 121 69-126 6 30 <br /> Anthracene N.D. 0.01 ug/l 120 110 68-122 9 30 <br /> Benzo(a)anthracene N.D. 0.01 ug/l 105 106 80-119 1 30 <br /> Benzo(a)pyrene N.D. 0.003 ug/l 102 100 70-118 1 30 <br /> Benzo(b)fluoranthene N.D. 0.01 ug/l 114 113 75-123 1 30 <br /> Benzo(g,h,i)perylene N.D. 0.01 ug/l 102 100 72-139 2 30 <br /> Benzo(k)fluoranthene N.D. 0.01 ug/l 106 106 72-122 1 30 <br /> Chrysene N.D. 0.01 ug/l 106 107 80-124 1 30 <br /> Dibenz(a,h)anthracene N.D. 0.003 ug/l 107 106 60-138 1 30 <br /> Fluoranthene N.D. 0.01 ug/l 132 114 67-133 15 30 <br /> Fluorene N.D. 0.01 ug/l 118 125 49-145 5 30 <br /> Indeno(1,2,3-cd)pyrene N.D. 0.01 ug/l 108 107 66-136 1 30 <br /> 1-Methylnaphthalene N.D. 0.0040 ug/l 91 96 70-130 5 30 <br /> 2-Methylnaphthalene N.D. 0.0040 ug/l 83 88 70-130 6 30 <br /> Naphthalene N.D. 0.05 ug/l 94 95 68-100 2 30 <br /> Phenanthrene N.D. 0.01 ug/l 115 108 71-124 7 30 <br /> Pyrene N.D. 0.01 ug/l 103 104 50-149 1 30 <br /> Batch number: 093230023A Sample number(s) : 5842644 <br /> TPH-DRO water C10-C25 N.D. 50. ug/l 71 84 54-122 16 20 <br /> Batch number: 093241848007 Sample number(s) : 5842644 <br /> Boron N.D. 9.4 ug/l 105 90-110 <br /> Calcium N.D. 70.2 ug/l 107 90-112 <br /> Iron N.D. 52.2 ug/l 104 90-112 <br /> Magnesium N.D. 17.2 ug/l 105 89-110 <br /> Manganese N.D. .84 ug/l 104 90-110 <br /> Potassium N.D. 239. ug/l 105 85-115 <br /> Batch number: 093371848001 Sample number(s) : 5842644 <br /> Sodium 458 433. ug/l 103 87-114 <br /> Batch number: 09323196602B Sample number(s) : 5842644 <br /> Chloride N.D. 200. ug/l 105 90-110 <br /> Nitrate Nitrogen N.D. 50. ug/l 105 90-110 <br /> Nitrite Nitrogen N.D. 80. ug/l 108 90-110 <br /> Sulfate N.D. 300. ug/l 104 89-110 <br /> *-Outside of specification <br /> (1)The result for one or both determinations was less than five times the LOQ. <br /> (2)The unspiked result was more than four times the spike added. <br />