Laserfiche WebLink
COLUMBIA ANALYTICAL SERVICES, INC <br /> QA/QC Report <br /> Client EMCON Associates Date Received 10/13/92 <br /> Project EMCON Project No OG71-018 01 Work Order # SJ92-1268 <br /> Arco Facility No 2093 <br /> Initial Calibration Verification <br /> BTEX and TPH as Gasoline <br /> EPA Methods 503018020/DHS LUFT Method <br /> Nanograms <br /> Date Analyzed 10/15/92 <br /> CAS <br /> Percent <br /> Recovery <br /> True Percent Acceptance <br /> Analyte Value Result Recovery Criteria <br /> Benzene 250 275 110 85-115 <br /> Toluene 250 283 113 85-115 <br /> Ethylbenzene 250 271 109 85-115 <br /> Total Xylenes 750 779 104 85-115 <br /> TPH as Gasoline 2,500 2,415 97 90-110 <br /> Date Analyzed. 10/16/92 <br /> CAS <br /> Percent <br /> Recovery <br /> True Percent Acceptance <br /> Analyte Value Result Recovery Criteria <br /> Benzene 250 266 106. 85-115 <br /> Toluene 250. 272. 109 85-115 <br /> Ethylbenzene 250 262. 105 85-115 <br /> Total Xylenes 750. 753 100 85-115 <br /> TPH as Gasoline 2,500 2,454 98 90-110 <br /> TPH Total Petroleum Hydrocarbons <br /> Approved by t Date t.0 1LIlC/ 2 <br /> r <br /> 8 <br /> 1921 Ringwood Avenue • Son Jose Coliforrno 95131 • Telephone 408/437 2400 • Fox 4081437-9356 <br />