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Environmental Laboratories ����� <br /> Working to Restore Nature <br /> ' 42501 Albrae Street <br /> Fremont,CA 94538 <br /> 1 Phone (510)623-0775 <br /> (800)247-5223 <br /> FAX (5I0)651-8754 <br /> QUALM ASSURANCE f QUALITY CONTROL REPORT <br /> 10241ab frm <br /> Attention: Mr John Lane Date Analyzed. 02-28-92 <br /> RESNA G.C. # 2 <br /> ' 1710 Main St. Matrix: Water <br /> Escalon, CA 95320 <br /> Project: AGS 19509-1-, W0596 <br /> iKOK Realty <br /> Ethyl- Total <br /> Benzene Toluene benzene Xylenes TPHg TPHd <br /> ppb Wb ppb ppb ppb pph <br /> Detection Linut 0.5 0.5 05 05 50 100 <br /> Blank ND ND ND ND ND NR <br /> Ethyl- Total <br /> Benzene Toluene benzene Xylenes TPHg TPHd <br /> % % % % % % <br /> Standard 95 97 95 98 111 NR <br /> MS 90 91 89 91 117 NR <br /> ' MSD 87 89 85 89 122 NR <br /> RPD 34 22 4 6 2.2 4.2 NR <br /> ppb = parts per billion = ug/L = micrograms per Mer <br /> ' ND = Not detected Compound(s)may be present at concentrations below the detection lima <br /> NR = Analysts not requested <br /> MS - Matrix Spike <br /> MSD = Matrix Spike Duplicate <br /> RPD = Relator Percent Difference <br /> _Acceptable Ranee <br /> Standard s5-115% <br /> Blank ND <br /> MS/MSD 70-130% <br /> / RPD <25% <br /> March 6, ,1,892 <br /> Laboratory Representative Date Reported <br /> RESNA ENVIRONMENTAL LABORA'T'ORY IS CERTIFIED BY THE STATE OF CALIFORNIA <br /> ' DEPARTMENT OF HEALTH SERVICES AS A HAZARDOUS WASTE TESTING LABORATORY <br /> (Certification No 1211) <br />