Laserfiche WebLink
1 <br />• Project Number SFS-175-0204 72 <br /> Consultant Project Number 16000-250-044 <br /> Contract Number N46CWCO244-9-X <br /> Facility Number 9.6155 <br /> Work Order Number 00098387 <br /> Report Issue Date September 20 1990 <br /> Table 5 <br /> MATRIX SPIKE (MS) AND MATRIX SPIKE DUPLICATE (MSD) RECOVERY <br /> AND RELATIVE PERCENT DIFFERENCE (RPD) REPORT <br /> Purgeable Aromatics and Total Petroleum Hydrocarbons <br /> as Gasoline In Sod <br /> EPA Method 8020/8015 <br /> i <br /> I <br /> Date of Analysis 09/17/90 <br /> Sample Used C009371-01 Units mg/Kg <br /> Sample Concentration MS, % MSD MSD, % <br /> Analyte Result Added MS Result Recovery Result Recovery <br /> Benzene ND 286 227 79 234 82 <br /> Toluene ND 2 86 207 72 213 74 <br /> Ethylbenzene ND 2 86 211 74 217 76 <br /> Xylene (total) ND 858 638 74 654 75 <br /> Acceptability Limits'! <br /> Analyte RPD, % Maximum RPD, % %Recovery <br /> Benzene 4 30 50 - 112 <br /> Toluene 3 30 50 - 108 <br /> Ethylbenzene 3 30 50- 113 <br /> Xylene (total) 1 30 50 - 114 <br /> <# = Not Detected at the Indicated detection limit <br /> 1 = Acceptability limits are derived from the 99%confidence Interval of all samples during the <br /> previous quarter ' <br /> _ <br /> { <br /> GTEL Concord CA Page 7 of 7 <br /> 0009387 DOC GTE <br /> L I <br /> ENV I R ON M E N SA L <br /> ® tA6OQATO1WS INC <br />