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I <br /> • Environmental Laboratories - - "wAM <br /> 1 Working To Restore Nature <br /> QUALM ASSURANCEIQUALM CONTROL REPORT <br /> 1 10201ab frm <br /> Attention Mr Eric Halm Date Analvzed 08-28-92 <br /> RESNA GC # 1 <br /> 3164 Gold Camp Dr , Ste 200 Matrix Water <br /> Rancho Cordova. CA 95670 <br /> Project 38032 08, Unocal Stockton <br /> Ethyl- Total <br /> Benzene Toluene benzene Xylenes TPHg <br /> 1 P-P—b ppb p <br /> Detection Limit 05 05 05 05 50 <br /> Blank ND ND ND ND ND <br /> Ethyl- Total <br /> F Benzene Toluene benzene Xylenes TPHg <br /> Standard 100 106 102 108 105 <br /> 1 MS 96 103 104 104 83 <br /> MSD 97 103 103 101 83 <br /> RPD 104 000 097 293 000 <br /> 1 <br /> ppb = parts per billion = ug/L = nucro,ratns per Irtar <br /> \D = Not detected Compound(s) may be present at concentrations below the detection limit <br /> \R = Analysts not requested <br /> MS = Matrix Spike <br /> MSD = Matrix Spike Duplicate <br /> RPD = Relative Percent Difference <br /> \cccptahle Ran�� <br /> 1 manaard S5 1151-C <br /> Flank \D <br /> MS/%ISD -() i3O c <br /> ItpD ¢25-"c <br /> August 31 1992 <br /> Laboratory Representative Date Reported <br /> RESNA ENVIRONMENTAL LABQRAI'ORY IS CERTIFIED BY THE STATE OF CALIFORNIA <br /> DEPARTMEN-r or HEALIIT SERV1CtCS AS A FIAZIRDOLS WASTE TESTING L>,BORATORY <br /> (CLrtiucaoon No 1211) <br /> 2301 Alhrae Street • Fremont CA 9,1538 0 Phnne t510� 523-0775 9 1800) 2-17-5223 0 �- <br />