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Sequoia 819 StrOcer Avenue, Suite 8 <br /> e <br /> ® Sacramento CA 95834 <br /> (916)921-9600 <br /> Analytical FAX(916)921-0100 <br /> EMCON/Pinnacle-Cameron Park Project Don Rogers Sampled 8118199 <br /> 3939 Cambridge Road,Ste 220 Protect Number 792773/22613-100 003 Reported 8119199 <br /> Cameron Park,CA 95682 Project Manager Mark Caps Reported 912199 <br /> Total Purgeable Hydrocarbons(C6-C12),BTEX and MTBE by DHS LUFT/Quality Control <br /> Sequoia Analytical-Sacramento <br /> Date Spike Sample QC Reporting Limit Recov RPD RP?/.=Note,'Analyte Analyzed Level Result Result Units Recov Limits % Limit % Notes°' <br /> Bgtch. 90801% nate Prepared, 8/24199 Extraction Method, EPA 5030B(PLT) <br /> Blank 9080196-BLK <br /> Purgeable Hydrocarbons 8124199 ND ug/1 Soo <br /> ND 0 500 <br /> Benzene <br /> Toluene ND 0 500 <br /> Ethylbenzene ND 0 500 <br /> Xylenes(total) ND 0 500 <br /> Methyl tert-butyl ether ND 500 <br /> Surrogate a,a,a-Tr:fluorotoluene 100 898 600-140 898 <br /> LCS 9080196-B51 <br /> Benzene 8/24199 10 0 888 ug/l 700-130 88 8 <br /> Toluene 100 890 700-130 89 0 <br /> Ethylbenzene 100 8 93 700-130 893 <br /> Xylenes(total) 300 270 700-130 900 <br /> yl Cert-butyl ether 100 105 700-130 105 <br /> ogate a a,a-Trzfluorotoluene 100 949 600-140 94 9 <br /> Matrix Spike 9080195-MS1 5908228-01 <br /> Benzene 8/24/99 too 178 108 ug/1 60 0-]44 90 2 <br /> Toluene too ND 8 88 600-140 888 <br /> Ethylbenzene 100 ND 950 600-140 95 0 <br /> Xylenes(total) 300 0 961 28 2 600-140 908 <br /> Methyl tert-butyl ether 100 ND 9 75 600-140 975 <br /> Surrogate a a,a-Trzfluorotoluene 100 917 600-140 91 7 <br /> tra ix Spike Dun - x908228-01 <br /> Benzene 8/24/99 too 178 104 ug/l 600-140 862 25 0 454 <br /> Toluene 100 ND 8 79 600-140 87 9 250 102 <br /> Ethylbenzene " too ND 9 42 600-140 94 2 250 0 846 <br /> Xylenes(total) 300 0 961 281 600-140 905 250 0 331 <br /> Methyl tert-butyl ether too ND 13 0 600-140 130 25 0 28 6 2 <br /> Surrogate a a a-Trzfluorotoluene 100 896 600-140 89 6 <br /> uoia Analytical-Sacramento *Refer to end of report for text of notes and definitions <br /> Page 3 of 4 <br />