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Environmental laboratories <br /> Working 7o Restore Nature <br /> QUALM ASSURANCE.IQUALM CONTROL REPORT <br /> 12201ab I'm <br /> Attention Mr Eric Holm Date Analvzed 09-08-92 <br /> RESNA GC # 1 <br /> 3164 Gold Camp Dr, Ste 200 Matrix Water <br /> Rancho Cordova, CA 95670 <br /> Project 38032 09, Unocal 6981 <br /> Ethyl- Total <br /> Benzene Toluene benzene Xylenes TPHg <br /> ppb 20b ppb -ppb P-P b <br /> Detection Limit 05 0 5 0 5 05 50 <br /> Blank ND ND ND ND ND <br /> • Ethyl- Total <br /> Benzene Toluene benzene Xylenes TPHg <br /> Standard 86 94 90 93 91 <br /> MS 90 96 94 95 113 <br /> MSD 87 94 92 94 116 <br /> RPD 39 211 2 15 106 262 <br /> ppb = parts per billion = ug/L = micrograms per liter <br /> \D = Not detected Compound(s) may be present at concentrations below the detection limit <br /> \R = Analvsts not requested <br /> \IS = Matrix Spike <br /> MSD = Matrix Spike Duplicate <br /> RPD = Relative Percent Difference <br /> \cceptahle Rang_e <br /> Standard SS-1157c <br /> Blank \D <br /> \t5/MSD -0-13o`-C <br /> RPD <25'c <br /> )e tember 9 1992 <br /> Ldboratory Representative Date Reported <br /> RESMA F?,MRONMENTAL IABOF2A1'ORY IS CER17I1­717D BY TIIE STATE OF CALIFOWN-1 . <br /> DEP\RIME\T or IIFAuni SERVICLS \S \ IIA7-\RDOLS WA=--TESTING LABORATORY <br /> �Ccr nication \o 121 D <br /> �)ji�] ��I�rIP � rPPr • G amnnt � .. - • ��.,.,o cin c. � �'-_ ,inns � - c-�� �z - - -- <br />