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Environmental Laboratories <br /> Working To Restore Nature <br /> UAU TY ASSURANCE UALI'I'Y CONTROL REPORT <br /> 10201ab frm <br /> Attention: Ms. Lois Frantz Date Analyzed: 01-29-93 <br /> RESNA GC- # 1 <br /> 1710 Main St. Matrix- Water <br /> Escalon, CA 95320 <br /> Project: 11020.01, Project W0290.00 <br /> Ethyl- Total <br /> Benzene Toluene benzene Xylenes TPHg TPHd <br /> Wb <br /> Detection Lirmt• OS 0.5 0.5 05 50 50 <br /> Blank ND ND ND ND ND NR <br /> Ethyl- Total <br /> Benzene Toluene benzene Xylenes TPHg TPHd <br /> % % % % % % <br /> Standard 97 94 102 102 108 NR <br /> MS 97 92 95 95 108 NR <br /> MSD 100 94 96 96 99 NR <br /> RPD 3.05 2.15 105 1.05 870 NR <br /> ppb = parts per billion = ug/L. = micrograms per titer <br /> ND = Not detected Compound(s)may be present at concentrations below the detection limit <br /> NR= Analysts 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 <25% <br /> . <br /> low February 11, 1993 <br /> Laboratory Reirescritative Date Reported <br /> RESNA ENVLRONMEWAL LABORATORY IS CERTIFIED BY THE STATE OF CALIFORNIA <br /> DEPARTMENT OF HEALTH SERVICES AS A HAZARDOUS WASTE TESTING:LABORATORY <br /> (Certification No 1211) <br /> 42501 Albrae Street • Fremont, CA 94538 + Phone (510) 623-0775 • (800) 247-5223 • FAX (510) 651-8754 <br />