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Environmental Laboratories Zr9MA <br /> iWorking to Restore Nature <br /> 42501 Albrae Street <br /> Fremont,CA 94538 <br /> Phone (510)623-0775 <br /> (800)247-5223 <br /> FAX (510)6514754 <br /> QUALITY ASSURANCE/QUALITY CONTROL REPORT <br /> 10201ab frm <br /> Attention: Mr. John Lane Date Analyzed. 03-06-92 <br /> RESNA GC #. 2 <br /> 1710 Main St. Matrix: Water <br /> Escalon, CA 95320 <br /> Project. AGS 19509-L, Project W0174 <br /> Ethyl- Total <br /> Benzene Toluene benzene Xylenes TPHg TPHd <br /> ppb ppb ppb Wh Rat RRh <br /> Detection Limit: 0.5 05 05 05 50 100 <br /> Blank ND ND ND ND ND ND <br /> Ethyl- Total <br /> Benzene Toluene benzene Xylenes TPHg TPHd <br /> Standard 94 97 93 98 110 98 <br /> MS 104 105 101 106 112 117 <br /> MSD 103 103 99 104 117 126 <br /> RPD 10 19 20 19 44 7.4 <br /> ppb = parts per billion = ugf L = micrograms per liter <br /> ND = Not detected Compound(s)may be present at concentrations below the detection lima <br /> NR = Analysis not requested <br /> MS = Matrix Spike <br /> MSD = Matrix Spike Duplicate <br /> RPD = Relative Percent Difference <br /> Acceptable Range <br /> Standard 85-115% <br /> Blank ND <br /> MS/MSD 70-130% <br /> RPD 525% <br /> _March 13. 2992 <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 121I) <br />