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L <br /> I Environmental Laboratories:---- <br /> Working To Restore Nature <br /> L <br /> QUALITY ASSURANCR QUALITY CONTROL REPORT <br /> Attention: Ms. Sharon Young Date Analyzed: 12-17-92 10201ab.hm <br /> L RESNA G.C. #: 1 <br /> 1710 Main St. Matrix: <br /> Escalon, CA 95320 <br /> L Project: 195091, Project W0661.00 <br /> Ethyl- Total <br /> Benzene Toluene benzene Xylenes TPHg TPHd <br /> Detection Limit: OS 0.5 OS OS 50 50 <br /> L Blank ND ND ND ND NR NR <br /> Ethyl- Total <br /> Benzene Toluene benzene Xylenes TPHg TPHd <br /> % % % % % % <br /> Standard 100 92 97 93 NR NR <br /> L <br /> MS 109 98 106 101 NR NR <br /> MSD 110 100 103 95 NR NR <br /> RPD 1.83 2.02 2.87 6.12 NR NR <br /> R* -parts Per beillion - u&/I.- micsopams Per liter <br /> ND - Not detected. Compounds)may be present at concentrations below the detection limit. <br /> NR-Aoaly*not requested. <br /> MS - Matrix Spike <br /> MSD - Matrix Spike Duomte <br /> RPD - Relative Percent Difference <br /> Acceptable Range <br /> Standard 0-115% <br /> Blank ND <br /> MS/MSD 7x}13096 <br /> RPD <25% <br /> fW4WA� <br /> December 28. 1992 <br /> Laboratory Represenkme Date Reported <br /> RIMA ONIROmmmaAL LABORATORY IS CERTTF m BY THE STATE OF CALIFO <br /> RNIA <br /> DEPARTMENT OF HEALTH SERVICES AS A HAZARDOUS WASTE TESTING LABORATORY <br /> 42501 Albrae Street 9 Fremont, CA 94538•Phone 0)623-0775 •(800) 247-5223 9 FAX: (510) 651-8754 <br />