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COLUMBIA ANALYTICAL SERVICES, INC. <br /> QA/QC Report <br /> • Client ARCO Products Companv Service Request- S9521021 <br /> Project 1775-700 001 /TO# 17075 00/ 434 Lodi Date Analyzed 8/22195 <br /> Initial Calibration Verification(ICV) Summary <br /> BTEX and TPH as Gasoline <br /> EPA Methods 5030/80201California DHS L=Method <br /> Units ppb <br /> CAS <br /> Percent <br /> Recovery <br /> True Percent Acceptance <br /> Analyte Value Result Recovery Limits <br /> Benzene 25 263 105 85-115 <br /> Toluene 25 25 1 100 85-115 <br /> Ethvlbenzene 25 25 0 100 85-115 <br /> ',.%lenes Total 75 72 6 97 35-115 <br /> Gasoline 250 233 93 90-110 <br /> • <br /> ICY25ALAW194 <br /> Page 6 <br />