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Quality Assurance Results Summary <br /> lot <br /> Clayton Project No. 91020. 19 <br /> Clayton Lab Number 9102019.26A Anal yt trot Method EPAHOHO <br /> Eat,/Prep. Method: EPA3550 Date: 02/08/91 <br /> Dot a: 02/05/91 Analyst: DTT <br /> Analyst: AM Sample Matrix/Medla: SOIL <br /> Std. Source. W-556 Units. UG/NG <br /> MS MSD Average <br /> Matrix Recovery Matrix Spike Recovery Recovery LCL UCL APD UCL <br /> Analyte Sample Result Spike Level Spike Result (%) Duplicate Result (%) (% R) (% R) (% R) (%) (%RPD) <br /> 4,4'-DDT 42.0 33. 3 72.2 91 76.2 103 97 60 140 5, 4 25 <br /> ALDRIN ND 33. 3 26.9 81 34.4 103 92 60 140 24 25 <br /> DIELDRIN ND 33. 3 31.2 94 38. 5 116 105 60 IAO 21 25 <br /> If <br /> ENDRIN ND 33, 3 25.6 77 33. 7 101 89 60 140 27• 25 <br /> GAMMA-BHC (LIDANE) ND 33. 3 31.4 94 34.9 105 99 60 140 11 25 <br /> HEPTACLOR NO 33. 3 29.2 88 37.6 113 100 60 140 25 25 <br /> ( <br /> LCS - Laboratory Control Semple LCL - Lower Contras Limit UCL - Upper Control Limit <br /> NO - Not detected at or above limit of detection SOR . Spike out of range due to high sample concentration. <br />