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Environmental Laboratories =--— AMA C W, <br /> Working to Restore Nature <br /> 42501 Albrae Street <br /> Fremont,CA 94538 <br /> Phone (510)623-0775 <br /> (800)247-5223 <br /> FAX (Sip)651-8754 <br /> QUALITY ASSURANCE/QUALITY CONTROL REP RT <br /> 10201ab fret <br /> Attention- Mr. Bill Channell Date Analyzed: 03-03-92 <br /> RESNA G.0 #- 2 <br /> 1710 Main St. Matrix Water <br /> Escalon, CA 95320 <br /> Project: AGS 19509-L, W0155 <br /> Chase Chevrolet/Stockton <br /> Ethyl- Total <br /> Benzene Toluene benzene Xylenes TPHg TPHd <br /> P Dph ppb ppb ppbpp <br /> Detection Limit 0.5 05 05 0.5 50 100 <br /> Blank ND ND ND ND ND NR <br /> Ethyl- Total <br /> Benzene Toluene benzene Xylenes TPHg TPHd <br /> Standard 98 103 101 104 114 NR <br /> MS 109 109 106 108 101 NR <br /> MSD 104 109 104 107 107 NR <br /> RPD 4.7 0 1.9 0 9 5.8 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 = Analysis not requested <br /> MS = Matrix Spike <br /> MSD = Matrix Spike Duplicate <br /> RPD = Relative Percent Diffcrence <br /> Acceptable Range <br /> Standard 85-115% <br /> Blank ND <br /> MS/MSD 70-130% <br /> RPD <25% <br /> March 6. 1992 <br /> Laboratory Representative Date Reported <br /> RESNA ENVIRONMENTAL LABORATORY IS CERTIFIED BY THE STATE OF CALIFORNIA <br /> DEPARTMENT OF HEALTH SERVICES AS A HAZARDOUS WASTE TESTING LABORATORY <br /> (Certification No 1211) <br />