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4 <br /> i Z <br /> 1 f <br /> Environmental Laboratories --� onicsMA <br /> } Working to Restore Nature <br /> { 42501 Albrae Street <br /> } Fremont,CA 94538 <br /> Phone:(510)623-0775 f <br /> (800)247-5223 <br /> FAX:(510)651-8754 <br /> QUALITY ASSURANCE UALITY CONTR L REPORT <br /> 10201ab.frm <br /> a Attention: Ms. Tina LePage Date Analyzed: 04-02-92 <br /> RESNA G.C. #: 2 <br /> 1710 Main Street Matrix: Water <br /> Escalon, CA 95320 <br /> Project: AGS 195091, W0613 <br /> Ethyl- Total <br /> Benzene Toluene benzene Xylenes TPHg TPHd <br /> ppb ppb ppb p pj)b ppb <br /> Detection Limit: 0.5 0.5 0.5 0.5 50 100 <br /> Blank ND ND <br /> ND ND ND NR <br /> G <br /> Ethyl- Total <br /> Benzene Toluene benzene Xylenes TPHg TPHd <br /> % % % % % % <br />'4 <br /> Standard 97 98 96 95 108 NR <br /> f k <br /> MS 104 103 100 94 122 NR k <br /> MSD 103 103 101 95 113 NR <br /> RPD 0.9 0 1.0 1.0 7.7 NR <br /> } <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 Difference <br /> Acceptable Range <br /> Standard 85-II5% <br /> F Blank ND <br /> MS/MSD 70-13Wo <br /> RPD <25% <br /> C April 9 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. 12I1) <br />