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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: 1171329 <br /> Reported: 12/03/09 at 11:06 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: C093271AA Sample number(s) : 5839239-5839241 <br /> Benzene N.D. 0.1 ug/l 99 96 80-120 3 30 <br /> Ethylbenzene N.D. 1. ug/l 100 96 80-120 4 30 <br /> Toluene N.D. 1. ug/l 101 98 80-120 3 30 <br /> Xylene (Total) N.D. 1. ug/l 101 97 80-120 3 30 <br /> Batch number: 09322WAF026 Sample number(s) : 5839239,5839241 <br /> Acenaphthene N.D. 0.01 ug/l 114 68-116 <br /> Acenaphthylene N.D. 0.01 ug/l 121 69-126 <br /> Anthracene N.D. 0.01 ug/l 119 68-122 <br /> Benzo(a)anthracene N.D. 0.01 ug/l 113 80-119 <br /> Benzo(a)pyrene 0.0035 0.003 ug/l 127* 70-118 <br /> Benzo(b)fluoranthene N.D. 0.01 ug/l 144* 75-123 <br /> Benzo(g,h,i)perylene N.D. 0.01 ug/l 112 72-139 <br /> Benzo(k)fluoranthene N.D. 0.01 ug/l 116 72-122 <br /> Chrysene N.D. 0.01 ug/l 110 80-124 <br /> Dibenz(a,h)anthracene N.D. 0.003 ug/l 122 60-138 <br /> Fluoranthene N.D. 0.01 ug/l 133 67-133 <br /> Fluorene N.D. 0.01 ug/l 114 49-145 <br /> Indeno(1,2,3-cd)pyrene N.D. 0.01 ug/l 124 66-136 <br /> 1-Methylnaphthalene N.D. 0.0040 ug/l 120 70-130 <br /> 2-Methylnaphthalene N.D. 0.0040 ug/l 108 70-130 <br /> Naphthalene N.D. 0.05 ug/l 92 68-100 <br /> Phenanthrene N.D. 0.01 ug/l 115 71-124 <br /> Pyrene N.D. 0.01 ug/l 104 50-149 <br /> Batch number: 093220002A Sample number(s) : 5839239,5839241 <br /> TPH-DRO water C10-C25 N.D. 50. ug/l 93 54-122 <br /> Batch number: 093340003A Sample number(s) : 5839241 <br /> TPH-DRO water C10-C25 w/Si Gel N.D. 32. ug/l 70 45-114 <br /> Batch number: 093221848002 Sample number(s) : 5839241 <br /> Boron N.D. 9.4 ug/l 102 90-110 <br /> Calcium 75.0 70.2 ug/l 106 90-112 <br /> Iron N.D. 52.2 ug/l 104 90-112 <br /> Magnesium N.D. 17.2 ug/l 101 89-110 <br /> Manganese N.D. .84 ug/l 103 90-110 <br /> Potassium N.D. 239. ug/l 102 85-115 <br /> Sodium N.D. 433. ug/l 104 87-114 <br /> Batch number: 09321196601A Sample number(s) : 5839241 <br /> Chloride N.D. 200. ug/l 100 90-110 <br /> Nitrate Nitrogen N.D. 50. ug/l 101 90-110 <br /> Nitrite Nitrogen N.D. 80. ug/l 101 90-110 <br /> Sulfate N.D. 300. ug/l 101 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 />