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ento CA 958-U <br /> Sequoia <br /> 819 Striker Avenue,Suite 8 <br /> IDSequoia (916)921-9&)0 <br /> FAX(9 16)921-0100 <br /> VV Analytical www sequotalabs,mm <br /> SECOR International-Rancho Cordova Project Arco 6020,Mantcm CA <br /> 3017 Kilgore Road.Suite I00 Proptt Number NIA Reported <br /> Rancho Cordova CA{95670 Project Ms11W Rusty Bmkosky 06/18/01 18 01 <br /> Total Purgeable Hydrocarbons (C6-C12), BTEX and MTBE by DHS LUFT - Quality Control <br /> Sequoia Analytical • Sacramento <br /> Rapamng Spike Source %REC RPI7 <br /> lamb,te Rcoulc Lama Units Lcvcl Rcsult %REC Luwts RPD Llmu Noma <br /> Batch 1060109-EPA 5030B <br /> Blank(1060109-BLKI) Prepared&Analyzed 06/14/01 <br /> Purgcable H)drocarbons ND 50 ug/l <br /> Beaaene ND 050 <br /> Toluznc ND 050 " <br /> Ethylben=z ND 050 <br /> Xylenes(loud) ND 050 - <br /> Mcthyl tort-butyl cthcr ND 25 " <br /> Swrogale 4zua-Trb luorotoluene 990 100 990 60-140 <br /> LCS(1060109-BSI) Prepared&Analyzed 06/14/01 <br /> Ba=mz a 21 050 ug/l 100 821 70-130 <br /> Toluene 919 050 P 100 919 70.130 <br /> IMMOW-M 870 050 P100 870 70-130 <br /> AM(Wml) 279 050 " 300 930 70-130 <br /> Methyl tett-butyl ether 966 25 100 966 70-130 <br /> Surrogate a,4za-Trgluoroto&ene 102 100 102 60-140 <br /> Matrix Spike(1060109-MSI) Source S106088-01 Prepared&Analyzed 06/14/01 <br /> Dam= 867 050 usll 100 ND 867 60-140 <br /> Toluane 952 050 100 ND 952 60-140 <br /> Ethyllminme 901 0 50 " 100 ND 901 60-140 <br /> X*=(total) 281 050 300 ND 957 60-140 <br /> Methyl Leri-butyl other 125 25 100 ND 125 60-140 <br /> Srvrogate a a a-TrVUorotoluene 106 100 106 60-140 <br /> Matrix Spike Dup(1060109-MSDI) Source S106088-07 Prepared&Analyzed 06/14101 <br /> Benaame 890 050 ug/l 100 ND 890 60-140 262 23 <br /> Toluene 990 050 100 ND 99 0 60-140 391 23 <br /> Ethylbwunc 951 050 100 ND 951 60.140 540 25 <br /> Xylenes(total) 305 050 300 ND 102 60-140 608 25 <br /> Methyl tart4x"l ether 123 25 " 100 ND 123 60-140 161 25 <br /> Surrogate a,a,a-Tr fluorololuene 112 100 112 60-140 <br /> to Analyttaal-Sacramento The results m thts report apply ro oke samples anabmd in accordance with the chain of <br /> custody document This analyrtcal report ghost be reproduced rn its enttrery <br /> Page 6 of 10 <br /> zt/z d 9dS/ulonO35 Wd92 90 ie. 91 Nnf <br />