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,Environmental Laboratories !r'!V� <br /> Working To Restore Nature <br /> QUALITY ASSURANCE/QUALITY CONTROL REPORT <br /> Attention: Greg Stahl Date Analyzed: 03-01-93 <br /> RESNA G.C. #: 2 <br /> 1710 Main Street Matrix: Water <br /> Escalon, California 95320 <br /> Project: 11020.OL, Project WO195 <br /> Ethyl Total <br /> Benzene Toluene Benzene Xylenes TPHg TPHd <br /> ppb ppb ppb ppb ppbppb <br /> Detection Limit: 0.5 0.5 0.5 0.5 T 50 50 <br /> Blank ND ND ND ND NR ND <br /> Standard 102 104 106 107 NR 95 <br /> MS 113 116 119 118 NR 84 <br /> `> MSD 118 118 122 120 NR 85 <br /> RPD 4.33 1.71 2.49 1.68 NR 1.18 <br /> ppb=parts per billion=ugIL.=micrograms per liter <br /> ND=Not detected.Compound(s)may be present at concentrations below the detection limit. <br /> NR=Analysis nottequested. <br /> MS=Matrix Spike <br /> MSD=Matrix Sprite Duplicate <br /> RPD=Relative Percent Difference <br /> Acceptable Range <br /> Standard 85-115% <br /> Black ND <br /> MS/MSD 70-13096 <br /> RPD dS% <br /> March 11,1993 <br /> Laboratory Represe tative Date Reported <br /> RESNA ENVIRONMENTAL LABORATORY IS CERTIFIED BY THE STATE OF CALIFORNIA <br /> DEPARTMENT OF HEALTH SERVICES AS A HAZARDOUS WASTE TETITNO LABORATORY <br /> (Certification No.1211) <br /> 42501 Albrae Street 0 Fremont, CA 94538 9 Phone: (510) 623-0775 • (800) 247-5223 • FAX: (510) 651-8754 <br />