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ijCltca 04V �-uC314W we ..... - <br />1900 Bates Avenue, Suite L Concord, CA 94520 (510) 686-9600 FAX (510) 686.%89 <br />. cal 819 Striker Avenue, Suite 8 Sacramento, CA 958 (916) 921-9600 FAX (916) 921-0100 <br />Client Project ID: 15101.01, Austin Road <br />T10 Main Street Matra: Liquid <br />salon, CA 95320 <br />ration: Bill Channell OC Sample Group: 9408514-01-3 Reported: Aug 22, 1994; <br />p ........................:::.:..:::::::::::::::.:... <br />tte ::....:....... ........>,., , .::.: <br />QUALITY CONTROLREPORT <br />ANALYTE <br />1,1-Dichloro- <br />Trichloro- <br />Chloro- <br />Batch#: <br />ethane <br />ethene <br />benzene <br />Method: <br />EPA 601 <br />EPA 601 <br />EPA 601 <br />Analyst: <br />T. Costello <br />T. Costello <br />T. Costello <br />MS/MSD <br />' <br />Batch#: <br />940825801 <br />940825801 <br />940825801 <br />Date Prepared: <br />8/9/94 <br />8/9/94 <br />8/9/94 <br />Date Analyzed: <br />8/9/94 <br />8/9/94 <br />8/9/94 <br />Instrument I.D.#: <br />GCHP-9 <br />GCHP-9 <br />GCHP-9 <br />Conc. Spiked: <br />25Mg/L <br />25pg/L <br />25ug/L <br />Matrix Spike <br />% Recovery: <br />84 <br />88 <br />72 <br />Matrix Spike <br />Duplicate % <br />Recovery: <br />88 <br />92 <br />80 <br />Relative % <br />Difference: <br />4.7 <br />4.4 <br />11 <br />.....,.,,..::,.:..............:..•::::.....:::::,....N.:......,....,..........-................:...........:....................................:...:............................. <br />,., - ..,.:'.JOS'.. " <br />LCS Batch#: - - <br />Date Prepared: - - <br />Date Analyzed: - - <br />Instrument I.D.: - - <br />LCS % <br />Recovery: - - <br />Recovery <br />Control Limits: 28-167 35-146 38-150 <br />SEQUOIA ANALYTICAL <br />Vickie Tague Clark <br />Project Manager <br />Please Note: <br />The LCS is a control sample of known, interferent free matrix that is analyzed using the same reagents, <br />preparation, and analytical methods employed for the samples. The matrix spike is an aliquot of sample <br />fortified with known quantities of specific compounds and subjected to the entire analytical procedure. If <br />the recovery of analytes from the matrix spike does not fall within specified control limits due to matrix <br />interference, the LCS recovery is to be used to validate the batch. <br />9408514.WAT <3> <br />