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Environmental laboratories _-- mow` <br /> Working To Restore Nature <br /> I <br /> QUALI'T'Y ASSURANCEIQUALITY_CONTROL REPORT <br /> 10201ab frm <br /> Attention Mr Eric Holm Date Analvzed 08-14-92 <br /> RESNA GC # 4 <br /> 3164 Gold Camp Dr, Ste 200 Matrix Soil <br /> Rancho Cordova, CA 95670 <br /> Project 38032 08, Unocal Stockton <br /> Ethyl- Total <br /> Benzene Toluene benzene Xylenes TPHg <br /> PD—M D2M— qpm <br /> Detection Limit 0 005 0 005 0 005 0 005 10 <br /> Blank ND ND ND ND ND <br /> Ethyl- Total <br /> Benzene Toluene benzene Xylenes TPHg <br /> Standard 100 99 96 96 90 <br /> MS 79 77 74 73 90 <br /> MSD 86 83 80 78 77 <br /> RPD 848 750 779 662 156 <br /> ppm = parts per million = mg/kg= milligrams per kilograms <br /> `D = Not detected Compound(s) may be present at concentrations below the detection limit <br /> \R = Analvsis not requested <br /> %IS = Matnx Spike <br /> MSD = Matrix Spike Duplicate <br /> RPD = Relative Percent Difference <br /> Acceptable Ran.>e <br /> Standard 35-115% <br /> Blank \D <br /> \IS/AISD -0-130% <br /> RPD :25,7c <br /> rI `ii t August 26, 1992 <br /> Laboratory Representative Date Reported <br /> RESNA ENVIRONMENTAL LA130RAMRY IS CERTIT'IED BY THE STATE OF CALIFORMA <br /> DEPARTMENT OF HEALTII SERVICES AS A HA7�%RDOLS WASTE'1r4Tf\G LABORATORY <br /> (Certification \o 1211) <br /> 2501 -\Ibrae Street - Fremont C-\ 94538 - Phone 1310) 623-0775 - 1800) 2-47-3223 - FAk 3101 63� 8754 <br />