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Environmental Laboratories _---- �An <br /> Working To Restore Nature <br /> i <br /> OUALPTY ASSURANCE f QUALM CONTROL REPORT <br /> 10201ab frm <br /> Attention Mr Eric Holm Date Analyzed. 08-11-92 <br /> RESNA G.0 # 2 <br /> 3164 Gold Camp Dr, Ste 200 Matrix- Water <br /> Rancho Cordova, CA 95670 <br /> Project: AGS 38032 08, Unocal 6981 <br /> r< <br /> Ethyl- Total <br /> Benzene Toluene benzene Xylenes TPHg TPHd <br /> Ppb PpbP� 2pb _bP <br /> i <br /> Detection Limit 0.5 05 05 05 50 50 <br /> Blank ND ND ND ND ND NR <br /> Ethyl- Total <br /> Benzene Toluene benzene Xylenes TPHg TPHd <br /> • % % % % % % <br /> Standard 107 106 110 110 91 NR <br /> MS 102 102 106 105 87 NR <br /> 1 <br /> MSD 107 107 112 111 80 NR <br /> RPD 478 478 550 556 838 NR <br /> ppb - pens per billion = ug/L = micrograms per litcr <br /> ND = Not detected Compound(s)may be present at concentrations below the detection limit <br /> NR = Analvsts not requested <br /> MS = Matrix Spike <br /> 'NSD = Matrix Spike Duplicate <br /> RPD - Relatrve Percent Difference <br /> Acceptable Ran_Ze <br /> Standard 85-115% <br /> r Blank ND <br /> 'NS/MSD 70_130% <br /> RPD <259c <br /> l <br /> Auzust 11, 1992 <br /> Laboratory Representative Date Reported <br /> RESNA OWMONMENrAL LABORAFORY IS CERTIFIED BY THE STATE OF CALIFORNIA <br /> DEPARTMUgT OF HEALTH SERVICES AS A HAZARDOUS WASTE TESTING LABORATORY <br /> (Ccrufumtion Na 1211) <br /> --2501 �\Ibrae street • Fremont C-\ Q4538 • phane 115 10) 623 0773 • r800) 2-1--3723 9 r-\X 510) 63 1-R 5, <br />