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C H ROMALAB, INC. Submission #- 1999-10-0143 <br /> Environmental Services(SDB) <br /> To Wright Environmental Services Inc Test Method _8010 <br /> Attn Maria Reid Prep Method 5030 <br /> Batch QC Report <br /> Halogenated Volatile Organic Compounds <br /> Matrix Spike ( MS 1 MSD ) Water QC Batch # 1999/10108-0126 <br /> Sample ID MW-1 Lab Sample ID 1999-10-0143-001 <br /> MS 1999/10/08_01 26-004 Extracted 10/08/1999 21 49 Analyzed 10/08/1999 21 49 Dilution 1 0 <br /> MSD 1999110108-01 26-005Extracted 10/08/1999 22 40 Analyzed 10/08/1999 22 40 Dilution 10 <br /> Compound Conc [ug/L] Exp Conc [ug/L] lRecovery[% RPD I Ctrt Limits [%] Flags <br /> �Ms MSD (Sample MS I MSD I MS MSD I [%] JlRecoveryj RPD I MS MSD <br /> 1,1-Dichloroethene 204 230 ND 200 200 1020 115 0 120 50-140 20 <br /> Trichloroethene 181 21 1 ND 200 200 905 1055 153 50-150 20 <br /> Chlorobenzene 21 7 249 ND 200 200 1085 1245 137 50-150 20 <br /> Surrogate(s) <br /> 1-Chloro-2-fluorobenzen 21 1 251 20 20 1055 1255 50-150 <br /> I <br /> I <br /> I <br /> 1220 Quarry Lane*Pleasanton, CA 94566-4756 <br /> Telephone (925)484-1919*Facsimile (925)484-1096 <br /> Printed on 10/15/1999 17 52 Page 12 of 12 <br />