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Environmental Laboratories ��"AWv` <br /> IiM"nSrwa <br /> Working To Restore Nature <br /> 17062 Murphy Avenue <br /> Irvine, CA 92714-5914 <br /> Phone (714) 851-1544 <br /> Fax (714)851-2217 <br /> UALITY ASSURANCE UALITY CONTROL REPORT <br /> Attention:Nora Katoaka Date Analyzed: 01-13-92 <br /> RESNA Industries Matrix: Water <br /> 1710 Main Street Site: <br /> Escalon, CA 95320 <br /> Project: W0322 <br /> Ethyl- Total <br /> Benzene Toluene bemene Xylenes TPNg TPHd <br /> ppb ppb ppb ppb ppb ppb <br /> Detection limit 0.5 0.5 0 5 0.5 50 900 <br /> Blank ND ND ND ND ND ND <br /> Ethyl- Total <br /> Benzene Toluene benzene Xylenes TPTPHd <br /> x Hs�x x x x x <br /> Standard 97 94 94 94 99 NR <br /> MS 100 95 93 94 98 NR <br /> MSD 94 90 89 86 86 NR <br /> RPD 6. 2 5. 9 4 . 9 9. 1 13 . 5 NR <br /> ppb = parts per billion = ug/L = micorgrams per liter <br /> ND = Not detected. compounds) may be present at concentrations below the detection limit. <br /> NR = Analysis not requested <br /> MS = Matrix Spike <br /> MSD = Matrix Spike Duplicate <br /> RPD = Relative Percent Difference <br /> Acceptable Range <br /> Standard T—" 85-115% <br /> Blank ND <br /> MS/MSD 70-930% <br /> RPD <25x <br />