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SEQUOIA ANALYTICAL <br /> 819 Striker Avenue, Suite 8 • Sacramento, CA 95834 <br /> (916) 921-9600 * FAX (916) 921-0100 <br /> - <br /> 4 <br /> fmf+I X.,'Yfiw1-/+w. .�Gillflfs+rrArir�rlrmrfiN+.nu[+iv.trl+�+e.w.v+fiiwJCWfNfXNY•4Y1l mrlfrcfF�e�+/+vwr 3+._r.+rvN.rr++.r+r+++e+r:.+ r.vl4.vfN lffiifiRY�L+ R/N n+Y.W`JlJdlv4Cva'bio+ <br /> Groundwater Technology Client Project ID: LammersAle School District Sampled: Oct 7, 1992 t <br /> 4057 Port Chicago Hwy. Sample Matmc: Water Received: Oct 7, 1992 <br />'Concord, CA 94520 Analysis Method: EPA 5030/8015/8020 Reported. Oct 19, 1992.o� <br />�AttenUon: Dave IQeesattel Frst Sample#- 210-0287 <br />+W+4+v/iw.v vhwFix�wrY.✓ JCfla4}ifxiwW-wYi�'ii��+++v.�.0 rw` xifw..M�k v ?ir Jl +• ��••••w.(awG..vwm�YiL:w�J <br /> TOTAL PURGEABLE PETROLEUM HYDROCARBONS with BTEX DISTINCTION <br /> Reporting Sample Sample Sample Sample Sample <br /> Analyte Umii I.D. I.D. I.D. I.D. I.D. <br /> pg/L 210-0187 210-0188 210-0189 210-0190 210-0191 <br /> MW5 MW2 MW6 Field Blank Rnsate MW5 <br /> Purgeable <br /> Hydrocarbons 50 N D 1700 2700 N D N D <br /> Benzene 050 N D 3 3 630 N D N D <br /> Toluene 050 N D 3 5 74 N D N D <br /> Ethyl Benzene 050 N D 51 130 N D N D <br /> Total Xylenes 0 50 N D 3 0 210 N D N D <br /> Chromatogram Pattern -- Gas Gas -- -- <br /> Quality Control Data <br /> Report Limit Multiplication Factor 10 10 40 1 0 1 0 <br /> Date Analyzed 10/15/92 10/15/92 10/15/92 10/15/92 10/15/92 <br /> Instrument Identification HP-1 HP-1 HP-1 HP-1 HP-1 <br /> Surrogate Recovery, % 101 - - 102 103 <br /> (QC Limits = 70-130%) <br /> Purgeable Hydrocarbons are quantitated against a fresh gasoline standard <br /> Analytes reported as N 0 were not detected above the staled reporting limit <br /> r <br /> IA ANALYTI AL <br />"Michael R Giles <br /> Laboratory Director <br /> 2100187 GF IC <17 <br />