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110 2nd Avenue South, 9D7, Pacheco. CA 94553-5560 <br />Inc.cCampbell Analytical' Telephone : 925-798-1620 Fax : 925-798-1622 <br />Website: www.mccampbell.com E-mail: main «mccampbell.coin <br />_4 <br />Matrix: S WorkOrder: 0406261 <br />EPA Method: SW8015C <br />Extraction: <br />SW3550C <br />BatchlD: 11969 <br />Spiked Sample ID: 0406283-011 B <br />Sample <br />Spiked <br />MS* <br />MSD" <br />MS -MSD <br />LCS <br />LCSD LCS-LCSD <br />Acceptance <br />Criteria (%) <br />mg/Kg <br />mg/Kg <br />% Rec. <br />% Rec. <br />% RPD <br />% Rec. <br />% Rec. % RPD <br />Low <br />High <br />TPH(d) <br />ND <br />1.50 <br />91.6 ! <br />i <br />92.3 <br />0.793 <br />97.3 <br />97.9 0.653 <br />70 <br />130 <br />%SS: <br />112 <br />50 <br />96.7 <br />97.4 <br />0.724 <br />100 <br />101 0.314 <br />70 <br />130 <br />All target compounds in the Method Blank of this extraction batch were ND less <br />than the method RL <br />with the following exceptions: <br />NONE <br />= Matrix Spike; MSD = Matrix Spike Duplicate; LCS = Laboratory Control Sample; LCSD = Laboratory <br />Recovery = 100 * (MS -Sample) I (Amount Spiked); RPD = 100 * (MS - MSD) I ((MS + MSD) / 2). <br />MS and / or MSD spike recoveries may not be near 100% or the RPDs near 0% if: a) the sample is inhomogenous AND contains significant concentrations of <br />nalyte relative to the amount spiked, or b) if that specific sample matrix interferes with spike recovery. <br />= not enough sample to perform matrix spike and matrix spike duplicate. <br />= analyte concentration in sample exceeds spike amount for soil matrix or exceeds 2x spike amount for water matrix or sample diluted due to high matrix or <br />Ivte content. <br />DHS Certification No. 1644 ** - A/QC Officer <br />