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z� <br /> RPM 11f, <br /> INC. --------- <br /> SUPERIOR ANALY3lCAL LABORATORIES, <br /> 229 1512 DOHS H319 <br /> 825 ARNOLD.STE, 114 MARTINEZ, <br /> CALIFORNIA 94553 - ( 1 DOHS #220 <br /> E R T I K A T E O F A N A L Y S I S <br /> DATE RECEIVED: 11/06/90 <br /> LABORATORY NO. : 81844 DATE REPORTED: 11/13/90 <br /> CLIENT: Alton Geoscience <br /> CLIENT .TOB NO. : 30-140 <br /> ANALYSIS FOR BEt4ZENE, TOLUENE, ETHYL BENZENE & XYLENES <br /> by EPA Sw-846 Methods 5030 and 8020 <br /> Concentration(ug/L) <br /> Ethyl <br /> LAS Benzene Toluene Benzene Xylenes <br /> tion <br /> 0 Sample Identification _ ------- <br /> ---- --------------------- <br /> ND<0.3 <br /> _ __ _- - _- ND<0.3 ND<0.3 ND<0.3 ND<0.3 <br /> 1 �1'r11 ND<0.3 ND<0.3 760ND(0.3 600'3 <br /> 2 MW2 430 55 5600 <br /> 52 <br /> 3 t4W5 850 560 29 <br /> MW3 330 1& 52 <br /> 4 17 1200 fi 50 <br /> 5 MW4 393 <br /> 5 M 6 �?.3 <br /> ND<0.3 ND(0.3 NDC0.3 <br /> 'A <br /> g AMW4 ND<0.3 ND<0.3 ND<Q.3 ND<0.3 <br /> g AMW2 ND<0 .3 14D<0.3 11300.3 3400=3 <br /> 1 10 A.MWS 23 <br /> ND<0.3 ND<0.3 ND<0.3 <br /> 11 MW8 ND<0.3 <br /> 12 AMW3 ND<0.3 ND(0.3 ND<0.3 Np<0,3 <br /> 13 MW7 ND<0.3 ND(0.3 ND<0.3 ND<0.3 <br /> 14 TB <br /> ug/L - parts per billion (Ppb) <br /> Method Detection Limit in Water: 0.3 ug/L <br /> QAQC Summary: <br /> Daily Standard run at 20ug/L: RPD = %;< : Duplicate RPD <br /> MS/MSD Average Recovery = 103 / <br /> Rich d Srna, Ph.D. <br /> ---- / -- NOV g 5 190 <br /> Laboratory Manager <br /> SERVICE <br /> Of1TSTANDING QUALITY AND <br />