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Sequoia 680 Chesapeake Drive Redwood City CA 94063 (650) 364-9600 FAX(650)364 9233 <br /> 404 N Wiget Lane Walnut Creek CA 94598 (925)988-9600 FAX(925)988 9673 <br /> 4 IS) 819 Striker Avenue Suite 8 Sacramento CA 95834 (916)9Z1 9600 FAX(916)921 0100 <br /> 1455 McDowell Blvd North Ste D Petaluma CA 94954 (707) 792 1865 FAX(707)792 0342 <br /> Air Analytical <br /> 1551 Industrial Road San Carlos CA 94070 41 11 {650)232-9600 FAX(650)232 9612 <br /> Gettler Ryan,Inc -Rdncho Cordova Project Tosco#6981 <br /> 3164 Gold Camp Drive #240 Project Number Tosco#6981 Reported <br /> Rancho Cordova CA,95670 Project Manager Steve Carter 04-Oct-99 12 36 <br /> Total Purgeable Hydrocarbons (C6-C12) and BTEX 1n Air by DHS LUFT - Quality Control <br /> Sequoia Analytical - Walnut Creek <br /> Reporktng Spike Source %REC RPD <br /> Anal}te Result Limit Units Level Result %REC Li mts RPD Limit Notes <br /> Batch 9121012 P1 elmied 17-Sep-99 Using EPA 5030B JP/T} <br /> Blank(9121012-BLK2) <br /> Purgeable Hydros arhons ND 2 0 mg/m'Air <br /> Benzene ND 0 010 <br /> Toluene ND 0 010 " <br /> Ethyibuizene ND 0 010 <br /> \�Ienes(total) ND 0 010 " <br /> Surrogate art a Ti ifluoi otoluene 592 600 987 70 110 <br /> Blank(9121012-BLK3) <br /> Purgeable Hydrocirhons ND 20 mg/m' Air <br /> Benzene ND 0 010 <br /> Toluene IT'D 0 010 <br /> ]benzene ND 0 010 <br /> ares(total) ND 0 010 " <br /> 5urrogaie aaa-Ttifluoiotoluene 564 600 940 70-130 <br /> LCS (9121012-BS1) <br /> Benzine 182 0 010 mg/m'Air 200 91 0 70-130 <br /> Toluene 162 0 010 200 810 70-130 <br /> Eth)lhenzene 173 0 010 200 86 5 70-130 <br /> \Slenes(total) 562 0 010 600 93 7 70-130 <br /> Stu robafe aaa-Troiiorotohiene 544 600 90 i 70 130 <br /> LCS(9121012-BS2) <br /> Benzene 388 0 010 mg/m'Arr 400 97 0 70-130 <br /> Toluane 342 0 010 400 85 5 70 130 <br /> EthSlhenzene 352 0 010 400 88 0 70 130 <br /> '\\Imes(total) 1 1 9 0 010 120 992 70-130 <br /> Surrogate aaa-Trifluot otoluene .540 6 00 900 70-130 <br /> 1 <br /> equoia Analytical-Walnut Creek The results in this report apply to the samples analy.ed i n accordance with the clmn of <br /> 4 <br /> custody document Thts analytical report must be reproduced in i 1s entirety <br /> Juh r <br /> 1 eg ey, olect-Ma er Page 6 of 8 <br />