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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.larcasterIabs.com <br /> Page 1 of 4 <br /> Quality Control Summary <br /> Client Name: Chevron Environmental Mgt. Co. Group Number: 1029184 <br /> Reported: 03/27/07 at 10:12 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 Procrram Units %REC %REC Limits RPD RPD Max <br /> RL <br /> Batch number: 07073022101A Sample number(s) : 5004027 <br /> Ammonia Nitrogen N.D. 200. ug/l 98 91-100 <br /> Batchnumber: 07073196101A Sample number(s) : 5004027 <br /> Chloride N.D. 200. ug/l 97 90-110 <br /> Sulfate N.D. 300. ug/l 98 89-110 <br /> Nitrate Nitrogen N.D. 50. ug/l 101 90-110 <br /> Nitrite Nitrogen N.D. 80. ug/l 99 90-110 <br /> Batch number: 070740001A Sample number(s) : 5004027-5004028 <br /> TPH-DRO (C10-C25) Water N.D. 50. ug/l 93 93 57-118 0 20 <br /> Batch number: 070745732002 Sample number(s) : 5004027 <br /> Calcium N.D. 104. ug/l 103 85-115 <br /> Iron N.D. 52.2 ug/l 106 85-115 <br /> Magnesium N.D. 32.2 ug/l 102 85-115 <br /> Potassium N.D. 50.3 ug/l 100 85-115 <br /> Sodium N.D. 433. ug/l 108 85-115 <br /> Manganese N.D. .36 ug/l 103 85-115 <br /> Boron N.D. 9.4 ug/l 103 85-115 <br /> Batch number: 07075021201A Sample number(s) : 5004027 <br /> Total Dissolved Solids N.D. 9700. ug/l 101 80-120 <br /> Batch number: 07075108101A Sample number(s) : 5004027 <br /> Kjeldahl Nitrogen N.D. 500. ug/l 94 90-110 <br /> Batch number: 07077020201A Sample number(s) : 5004027 <br /> Alkalinity to pH 4.5 100 98-103 <br /> Batch number: 07078WABO26 Sample number(s) : 5004027-5004028,5004030 <br /> Naphthalene N.D. 0.01 ug/l 82 87 70-130 7 30 <br /> Acenaphthylene N.D. 0.01 ug/l 103 112 70-130 8 30 <br /> Acenaphthene N.D. 0.01 ug/l 103 111 70-130 8 30 <br /> Fluorene N.D. 0.01 ug/l 104 114 70-130 9 30 <br /> Phenanthrene N.D. 0.01 ug/l 104 111 70-130 6 30 <br /> Anthracene N.D. 0.01 ug/l 103 108 70-130 5 30 <br /> Fluoranthene N.D. 0.01 ug/l 108 116 70-130 8 30 <br /> Pyrene N.D. 0.01 ug/l 105 115 70-130 9 30 <br /> Benzo(a)anthracene N.D. 0.01 ug/l 106 116 70-130 9 30 <br /> Chrysene N.D. 0.01 ug/l 105 115 70-130 9 30 <br /> Benzo(b)fluoranthene N.D. 0.01 ug/l 110 119 70-130 8 30 <br /> Benzo(k)fluoranthene N.D. 0.01 ug/l 106 116 70-130 9 30 <br /> Benzo(a)pyrene N.D. 0.005 ug/l 105 115 70-130 10 30 <br /> Indeno(1,2,3-cd)pyrene N.D. 0.01 ug/l 119 134* 70-130 12 30 <br /> Dibenz(a,h)anthracene N.D. 0.005 ug/l 99 112 70-130 11 30 <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 />