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Sequoia 6$0 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 /> 819 Striker Avenue Suite 8 Sacramento CA 95834 (916)921 9600 FAX(916)921 0100 <br /> (i) ���������� 1455 McDowell Blvd North Ste D Petaluma CA 94954 (707)792 1$65 FAX(707)792-0342 <br /> 1551 Industrial Road San Carlos CA 94070 41 1 1 (650)232 9600 FAX(650)232 9612 <br /> ettler Ryan,hi(, -Ranclio Cordova Prosect Iosco#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 Hydi ocarbons (C6-C12), BTEX and MTBE by DHS LUFT - Quality Control <br /> Sequoia Analytical - Walnut Creek <br /> Reporting Spike Source %REC RPD <br /> Andlvte Result Limit Units Level Result %REC Limits RPD Limit Notes <br /> B,1t(,h 9I21012 Pi epat ed 16-Sep-99 Using EPA 5030B [PIT] <br /> Blank(9121012-BLKI) <br /> Pur3LibleH�drocarbons ND 10 mg/in'Air <br /> 13LIVene ND 0 10 <br /> 1 oluene ND 0 10 <br /> 6lhNlbenzene ND 010 <br /> a"]en es(total) ND 0 10 <br /> Methyl tert-buINI ether ND 0 50 <br /> Sio r ogaie o a a Tr ifluoi otoluene 540 600 900 70-130 <br /> Blank(9I21012-BLK2) <br /> Purt,eable HNdrOLarhOZK ND 10 mrg/m'Air <br /> Benzene ND 010 <br /> �ne ND 010 ' <br /> Ibrnzene ND 010 <br /> \�lenes(total) ND 0 10 <br /> Myth%]Cert-butyl ether ND 0 50 " <br /> 5urrogafe a a a T;rfluorolohrene 592 600 987 70-130 <br /> Blank(9I21012-BLK3) <br /> Purgeable Hydrmarbon,; ND 10 mg/m'Air <br /> Benzene ND 010 <br /> Toluene ND 010 " <br /> Eth}]benzene ND 010 <br /> \llenes(total) ND 0 10 <br /> Methyl tert bugs ether ND 0 50 <br /> Srn7vgate a a a-Tr iflum ofoluene 564 600 940 70-130 <br /> LCS(912I012-BSI) <br /> Benzene ] 82 0 10 mg/ml Air 200 910 70 130 <br /> Toluene 1 62 0 10 200 810 70 130 <br /> Ethvlbenzene 1 73 010 200 865 70-130 <br /> \vlenes(total) 562 010 600 937 70-130 <br /> Suriagate aaa-Triflumolohreue 544 600 907 70-130 <br /> Sequoia Analytical-Walnut Creek The results in tins reporr apply to the scuirples analyzed in accordmtce with the clawn of <br /> 0 oust ody document This analv neat report nim si he reproduced in r is erilr rety <br /> Ju e eg ey, rOject malygef <br /> Page 4 of 8 <br />