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______ <br /> Aronmental Laboratories- <br /> {Fir <br /> Working To Restore Nature <br /> UALITY <br /> ASSURANCEI CONTROL REPORT <br /> 10201ab.frm <br /> Attention: Mr. Greg Stahl Date Analyzed: O1-29-93 <br /> RESNA G.C. #: 1 <br /> 1710 Main St. Matrix: Water <br /> Escalon, CA 95320 <br /> Project: 11020.0L, Project W0195.00 <br /> Ethyl- Total <br /> Benzene Toluene benzene Xylenes TPHg TPHd <br /> Detection Limit: 0.5 0.5 0.5 0.5 50 50 <br /> Blank ND ND ND ND ND ND <br /> Ethyl- Total <br /> Benzene Toluene benzene Xylenes TPHg TPHd <br /> Standard 97 94 102 102 NR 104 <br /> MS 97 92 95 95 NR 103 <br /> MSD 100 94 96 96 NR 122 <br /> RPD 3.05 2.15 1.05 1.05 NR 16.9 <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 95-1159o' <br /> Blank ND <br /> MS/MSD 70-130%b <br /> RPD <25% <br /> Kqp-�' <br /> Februar rL10, 1993 <br /> Laboratory Representative Date Reported <br /> RPSNA IPNVIRONMENTAL 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 9 Fremont, CA 94538 • Phone: (510) 623-0775 0 (800) 247-5223 0 FAX: (510) 651-8754 <br />