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Environmental Laboratories_- "AWvAK <br /> J- ZffJMsAWff=% <br /> • Working To Restore Nature <br /> QUALITY_ASSURANCENUALM CONTROL REPORT <br /> 10201ab firm <br /> Attention Mr Bill Channell Date Analyzed- 08-11-92 <br /> RESNA G C # 2 <br /> 1710 Main St Matrix Water <br /> Escalon, CA 95320 <br /> Project 19505-L, Project W0190 <br /> Ethyl- Total <br /> Benzene Toluene benzene Xylenes TPHg TPHd <br /> .Ppb W Rpb Wb ppb Wb <br /> Detection Limit 0.5 05 05 05 50 50 <br /> Blank ND ND ND ND ND NR <br /> Ethyl- Total <br /> Benzene Toluene benzene Xylenes TPHg TPHd <br /> Standard 107 106 110 110 92 NR <br /> MS 102 102 116 105 89 NR <br /> MSD 107 107 112 111 82 NR <br /> RPD 478 478 3 85 5 56 819 NR <br /> ppb = parts per billion = ug/L = micrograms per liter <br /> ND = Not detected Compound(s) may be present at concentrations below the detection limit <br /> NR = Analysts not requested <br /> MS = Matrix Spike <br /> MSD = Matrix Spike Duplicate <br /> RPA = Relative Percent Difference <br /> Acceptable Range <br /> Standard 85-115% <br /> Blank ND <br /> MS/MSD 70-130% <br /> RPD <25% <br /> Augvst 14, 1992 <br /> Laboratory Reprelbritative Date Reported <br /> RESNA ENVIRONNtWrAL LABORATORY IS CERTIFIED BY THE STATE OF CALIFORNIA <br /> DEPARTMENT OF HEALTH SERVICES AS A HAZARDOUS WASTE TESTING LABORATORY <br /> (Certification No 1211) <br /> 42501 Albrae Street • Fremont, CA 94538 • Phone (510) 623-0775 9 (800) 247-5223 9 FAX (510) 551-8754 <br />