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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.lancasterlabs.com <br /> Page 1 of 5 <br /> Quality Control Summary <br /> Client Name: Chevron Environmental Mgmt Co Group Number: 1203973 <br /> Reported: 09/14/10 at 02:00 PM <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: C102041AA Sample number(s) : 6037216-6037222 <br /> Benzene N.D. 0.1 ug/l 104 80-120 <br /> Ethylbenzene N.D. 1.0 ug/l 104 80-120 <br /> Toluene N.D. 1.0 ug/l 102 80-120 <br /> Xylene (Total) N.D. 1.0 ug/l 103 80-120 <br /> Batch number: 10204WAE026 Sample number(s) : 6037217-6037222 <br /> Acenaphthene N.D. 0.010 ug/l 83 68-116 <br /> Acenaphthylene N.D. 0.010 ug/l 90 69-126 <br /> Anthracene N.D. 0.010 ug/1 90 68-122 <br /> Benzo(a)anthracene N.D. 0.010 ug/1 89 80-119 <br /> Benzo(a)pyrene N.D. 0.0030 ug/l 65* 70-118 <br /> Benzo(b)fluoranthene N.D. 0.010 ug/l 67* 75-123 <br /> Benzo(g,h,i)perylene N.D. 0.010 ug/l 80 72-139 <br /> Benzo(k)fluoranthene N.D. 0.010 ug/l 67* 72-122 <br /> Chrysene N.D. 0.010 ug/l 93 80-124 <br /> Dibenz(a,h)anthracene N.D. 0.0030 ug/l 87 60-138 <br /> Fluoranthene N.D. 0.010 ug/l 94 67-133 <br /> Fluorene N.D. 0.010 ug/1 87 72-133 <br /> Indeno(1,2,3-cd)pyrene N.D. 0.010 ug/l 84 82-132 <br /> 1-Methylnaphthalene N.D. 0.0040 ug/1 105* 41-103 <br /> 2-Methylnaphthalene N.D. 0.0040 ug/l 91 34-94 <br /> Naphthalene N.D. 0.050 ug/l 102* 68-100 <br /> Phenanthrene N.D. 0.010 ug/l 87 71-124 <br /> Pyrene N.D. 0.010 ug/l 89 71-114 <br /> Batch number: 102030012A Sample number(s) : 6037217-6037222 <br /> TPH-DRO water C10-C25 N.D. 5o. ug/l 76 81 54-122 6 20 <br /> Batch number: 102140002A Sample number(s) : 6037219 <br /> TPH-DRO water C10-C25 w/Si Gel N.D. 320. ug/l 78 81 45-114 5 20 <br /> Batch number: 102031848002 Sample number(s) : 6037220 <br /> Boron N.D. 13.8 ug/l 95 90-110 <br /> Calcium N.D. 70.2 ug/l 106 90-112 <br /> Iron N.D. 52.2 ug/l 106 90-112 <br /> Magnesium N.D. 17.2 ug/l 103 89-110 <br /> Manganese N.D. 0.84 ug/l 103 90-110 <br /> Potassium N.D. 239. ug/l 104 85-115 <br /> Sodium N.D. 433. ug/l 105 87-114 <br /> Batch number: 10202196601A Sample number(s) : 6037220 <br /> Chloride N.D. 200. ug/l 104 90-110 <br /> Nitrate Nitrogen N.D. 50. ug/l 106 90-110 <br /> Nitrite Nitrogen N.D. 80. ug/l 103 90-110 <br /> Sulfate N.D. 300. ug/l 106 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 />