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Sequoia 819 Striker Avenue,Suite 8 <br /> Sacramento CA 95834 <br /> 1 4 (916)921-9600 <br /> Analytical FAX(9 16)921-0100 <br /> r <br /> Gettler-Ryan-Rancho Cordova Protect Tosco#6981,Stockcon,CA Sampled 8/18/99 <br /> 3164 Gold Camp Dr,Ste 240 Project Number 140124 Received 8119199 <br /> i <br /> Rancho Cordova,CA 95670 Project Manager Mike Mitchener Reported 8120199 <br /> Total Purgeable Hydrocarbons(C6-Ci2),BTEX and MTBE by DHS LUFTIQuality Control <br /> Sequoia Analytical-Sacramento <br /> Date Spike Sample QC Reporting Lrnut Recov 7�7RPD <br /> IAnalyte Analyzed Level Result Result Units Recov Limits % % Nates* <br /> Batch 9080153 Date Prepared 8119199 Extraction Method EPA 5030B McON <br /> Blank 9080153-BLK1 <br /> Purgeable Hydrocarbons 8/19/99 ND mg/kg 1 OD <br /> Benzene ND 000500 <br /> Toluene ND 000500 <br /> Ethylbenzene ND " 000500 <br /> Xylenes(total) ND 000500 <br /> Methyl tert-butyl ether �_ — ND 0 0500__- <br /> Surrogate a a a-Trcfluoratoluene 0200 0204 600-140 102 <br /> LCS 9080153-BSI <br /> Benzene 8/19199 0200 0 221 mg/kg 700-130 110 <br /> Toluene 0200 0 235 700-130 117 <br /> Ethylbenzene 0200 0 234 700-130 117 <br /> (total) 0600 0628 700-130 105 <br /> *es <br /> i1 tert-butyl ether_ __- ----- 0200 --- 0213 ---�- '70 0-130 -_106 - - ---- <br /> Surrogate a s a-Trrfluorotoluene 0 200 -0 199 600-140 995 <br /> Matrix 5 rke 9080153-MS1 S908207-04 <br /> Benzene 8/19199 0200 ND 0 197 mg/kg 600-140 985 <br /> Toluene 0200 ND 0205 600-140 102 <br /> Ethylbenzene 0 200 ND 0207 600-140 103 <br /> Xylenes(total) 0 600 ND 0 559 600-140 932 <br /> Methyl tert-butyl ether ___� 0 200 ND _0 197 600-140 -98 5 <br /> Surrogate a ax-Truorotoluene 0 200 —6210 600-140 105 <br /> Matrix Spike Dui 9080153-MSDI 5908207-04 <br /> Benzene 8119199 0200 ND 0 194 mg/kg 600-140 970 25 0 153 <br /> Toluene 0200 ND 0 197 600-140 985 25 0 349 <br /> Ethylbenzene 0200 ND 0205 600-140 102 25 0 0 976 <br /> Xylenes(total) 0 600 ND 0 553 600-140 922 25 0 1 08 <br /> Methyl tert-butyl ether - 0200 ND 0202 600-140-- 101 25 0 2 51 <br /> Surrogate a s a-Trrfluorotoluene 0200 0 212 600-140 106 <br /> Sequoia Analytical-Sacramento *Refer to end of report for text of notes and definitions <br /> Page 4 of 6 <br /> 1 <br />