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Environmental Laboratories <br /> Working To Restore Nature <br /> QUALITY ASSURANCE/QUALITY CONTROL REPORT <br /> Attention: John Lane Date Analyzed: 04-09-93 <br /> RESNA G.C.#: 3 <br /> 1710 Main Street Matrix: Water <br /> Escalon, California 95320 <br /> Project: 11020.OL, Project W0365.01 <br /> Stockton Smith Canal <br /> Ethyl Total <br /> Benzene Toluene Benzene Xylenes TPHg TPHd <br /> ppb ppb Ppb -ppb ppb ppb <br /> Detection Limit: 0.5 0.5 0.5 0.5 50 50 <br /> Blank ND ND ND ND NR ND <br /> Standard 95 95 98 98 NR 115 <br /> MS 111 110 113 113 NR 80 <br /> MSD 97 95 99 97 NR 83 <br /> RPD 13.5 14.6 13.2 15.2 NR 3.68 <br /> ppb=parts per billion=ug1L=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 85-115 <br /> Blank ND <br /> MSIMSD 70-130% <br /> RPD CZ% <br /> I <br /> INTO <br /> Y� April 15,1993 <br /> Laboratory Repr gentative Date Reported . . <br /> E <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.1211) <br /> r <br /> h <br /> 42501 Albrae Street• Fremont, CA 94538 • Phone: (510) 623-0775 0 (800) 247-5223 0 FAX: (510) 651-8754 <br />