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Environmental Laboratories -__ _- _!�!v!! <br /> Working To Restore Nature <br /> QUALM ASSURANCEf QUALITY CONTROL REPORT <br /> i <br /> 10201ab frm <br /> Attention Mr Richard Alden Date Analyzed 11-16-92 <br /> RESNA G C # 1 <br /> 3164 Gold Camp Dr, Ste 200 Matrix- Water <br /> Rancho Cordova, CA 95670 <br /> Project 38012-14, Unocal 2859 <br /> Ethyl- Total <br /> Benzene Toluene benzene Xylenes TPHg <br /> Wb 4=b Wb ppb Dpb <br /> Detection Limit 05 05 0 5 05 50 <br /> Blank ND ND ND ND ND <br /> Ethyl- Total <br /> Benzene Toluene benzene Xylenes TPHg <br /> Standard 111 99 104 104 100 <br /> MS 94 89 93 90 94 <br /> MSD 86 82 84 81 90 <br />. RPD 889 819 10.2 105 435 <br /> ppb = parts per billion = ug/L = micrograms per liter <br /> \D = Not detected Compound(s) may be present at concentrations below the detection limit <br /> \R = Analvsis not requested <br /> MS = Matrix Spike <br /> %ISD = Matrix Spike Duplicate <br /> RPD = Relative Percent Difference <br /> Ac_c_eptahle Rantte <br /> Standard 85-115% <br /> Blank \D <br /> \4S/MSD 70-130% <br /> RPD <2570 <br /> Noverrtbcr 25.1992 <br /> Laboratory R resentattve Date Reported <br /> RESNA ENV[RONIIUYTAL tABORATORY IS CERTIFIED BY THE STATE OF CALIFORNIA <br /> DEPARTMENT OF HEALTH SERVICES AS A HAZARDOUS WASTE TF.SnNCi LABORATORY <br /> (Ccrtification \o 1211) <br /> »2501 A, brae Street • Fremont C4 94538 + Phone 13 10) 623 0773 * X800) 247-5223 • PAX 13101 651-8734 <br />