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r� <br /> 0nvfronmental Laboratories � <br /> atAr�i� <br /> Working To Restore Nature <br /> UA= ASSURANCE UALtTY CONTROL REPORT <br /> 10WlabS= <br /> Attention_ Mr. Bill Channell Date Analyzed: 06-12-92 <br /> RESNA G.C. #. 2 <br /> 1710 Main St. Matrix: Water <br /> Escalon, CA 95320 <br /> Project: AGS 195091, Project W02102 <br /> Ethyl- Total <br /> Benzene Toluene benzene Xylenes TPHg TPHd <br /> jWb Wb Rpb -ppb Wb �Vpb <br /> Detection Limit: OS 0.5 0.5 OS 50 50 <br /> Blank ND ND ND ND ND NR <br /> Ethyl- Total <br /> Benzene Toluene benzene Xylenes TPHg TPHd <br /> % % % % % <br /> Standard 103 102 100 102 103 NR <br /> MS 101 97 93 92 108 NR <br /> MSD 101 101 98 98 100 NR <br /> RPD 0.0 4.0 5.2 6.3 7.7 NR <br /> ppb = parts per billion = ug(L= nucrograms per titer. <br /> ND - Not detected. Compound(s)may be present at concentrations below the detection ltimt. <br /> NR - Analysis not sequested. <br /> MS = Mauve Spike <br /> MSD - Matrix Spike Duplicate <br /> RPD - Relative Percent Difference <br /> Acceptable Ranee <br /> Standard 85.115% <br /> Blank ND <br /> MS/MSD 70-130% <br /> RPD <25% <br /> June 22-1992 <br /> Laboratory kepresentative Date Reported <br /> RFSKA EmntomcgNrAL LABORATORY IS CERTIFIED BY THE STATE OF CALIFORNIA <br /> DEPARTMEN17 OF HEALTH SERVICES AS A HAZARDOUS WASTE TESTING LA330RATORY <br /> (Certification No 1211) <br /> 42501 Albrae Street• Fremont, U 94538 • Phone (510) 623-0775 • (800) 247-5223 • FAX (510) 651-8754 <br /> i <br />