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i <br /> Environmental Laboratories _— �w� <br /> rr� �MALMAW <br /> Working To Restore Nature <br /> F <br /> QUALITY ASSURANCE 1QUALITY CONTROL REPORT <br /> I0201ab frm <br /> Attention Mr Eric Halm Date Analyzed 08-24-92 <br /> RESNA GC # 4 <br /> 3164 Gold Camp Dr , Ste 200 Matrix Soil <br /> Rancho Cordova, CA 95670 <br /> 1 Project 38032 08, Unocal Stockton <br /> Ethyl- Total <br /> Benzene Toluene benzene Xylenes TPHg <br /> TLM P-P—M DIM P-2—M ppm <br /> 1 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 /> 1 % % % % % <br /> Standard 99 98 99 97 98 <br /> MS 102 102 104 100 95 <br /> 1 <br /> MSD 107 106 107 103 79 <br /> RPD 478 385 284 296 184 <br /> 1 ppm = pans per million = mg/kg= milligrams per kilograms <br /> \D = Not detected Compound(s) may be present at concentrations below the detection itmit <br /> \R = Analysts not requested <br /> MS = Matrix Spike <br /> NiSD = Matrix Spike Duplicate <br /> RPD = Relative Percent Difference <br /> %ccentahle Ranee <br />' Standard 55-115% <br /> Blank `D <br /> %IS/MSD 70-130% <br /> IUD <br /> �f Y l I �����✓1'L� August 26 1992 <br /> Laboratory Representative Date Reported <br /> RFSNA E NVIRONNEWrAL LABORATORY IS CERTMED BY TTIF STATE OF CAL1TORhIA <br /> DEPARTMENT OF HEALTH SERVICES -kS A HAZARDOUS WASTE TESTING LABORATORY <br /> (Certification \o 1211) <br /> 42501 -\}brae Street • Fremont C-\ 94538 + Phone +510) 623-0773 • 1800) 247-3223 0 F-,X i 5 i M 651 8-5- <br />