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Mar-02-99 11 : 11A P i nnaic le/EMCON P. 1L <br /> 1 z U U <br /> 680 Chesapeake Drive Redwood City,CA 94D63 (650)364-96DD FAX(650)364-9233 <br /> IDSequoia 494 N.Wiget Lane Walnut Creek,CA 94598 (92 5)998-9600 FAX(925)988-9673 <br /> + 8t9 Striker Avenue.Suite 8 Sacramento,CA 95634 (916)921-9600 FAX(916)921 0100 <br /> IQFAnalytical 1455 McDowell Blvd,North.Ste.D Petaluma,CA 94954} (707)792-1865 FAX(707)792-0342 <br /> Pinnacle-C.P. Project: Arco 548,Stockton,CA Sampled: 14126/98 to 10127!98 <br /> 3939 Cambridge Road, Ste.224 Project Number: NIA Received: 10128/98 <br /> } Cameton Park,CA 95682 Project Manager: Mark Capps Reported: I Ill 1198 <br /> i4 <br /> Total Purgeable Hydrocarbons(C&-C12),BT1EX and MTBE by DHS LUFT <br /> Sequoia Analytical-Sacramento t <br /> Batch Date Date Surrogate i Reporting <br /> lAnatyte Number Prepared Analyzed Limits Limit Result Units Notes4 <br /> AS-1 131-51 S$1S1 111 Stili <br /> Purgeable Hydrocarbons 8110023 11/2/98 1112/98 100 1014 mg/kg l,D <br /> Benzene „ „ 0.500 ND D <br /> Toluene 0.500 ND D <br /> Ethylbenzene 0.500 0.500 7.42 D <br /> D <br /> Xylenes(tatai} - „ <br /> Methyl tent-butyl ether 5.00 ND D <br /> Surrogate: a,a,a-Trifluorotoluene 60,0.140 f03 % <br /> t <br /> S-) 06.51 S810323-02-02 $411 <br /> Purgeable Hydrocarbons 8110023 1 t/2/98 11/2198 1.00 ND mg/kg <br /> Benzene 0.00500 ND " <br /> i Toluene 0,00500 ND " <br /> Ethylbenzene ° " ? 0.00500 ND <br /> Xylenes(total) <br /> 0A0500 0,0097$ " <br /> Methyl Cert-butyl ether " 0.0500 ND <br /> Surrogate: a,a.a-Trtfluorotoluene 60.0-140 !OS % <br /> AS-1(56,5) SA10323-03 $411 <br /> Purgeable Hydrocarbons 8110023 1112/98 .11/2198 1.00 ND mg/kg <br /> Benzene 0.00500 ND " <br /> Toluene 0.00500 ND " <br /> Ethylbenzent: 0.00500 ND " <br /> Xylenes(total) " 0.00500 0.0160 " <br /> Methyl cert-butyl ether 0.0500 ND " <br /> Surrogate: a,a,a-TriJ7uorotoluene 60.0-140 It 105 % <br /> AS-2(16.51 5810323-04 54/1 <br /> l Purgeable Hydrocarbons 8110037 1113198 1113/98 500 7830 mg/kg l,D <br /> Benzene 2.50 7.28 D <br /> Toluene 2.50 53.7 D <br /> Ethylbenzene 2-50 75.5 D <br /> Xylenes(total) I' 2.50 694 D <br /> Methyl tert-butyl ether 25.0 110 D <br /> Surrogate: a,a,a-Trifluorotoluene 60.0440 97.5 <br /> l <br /> .5 5810323-05 c�4il <br /> Purgeable Hydrocarbons 8110023 1112/98 1112/98 EDD 1730 mg/kg I,D <br /> Benzene 0.500 ND D <br /> Toluene 0.500 23.0 D <br /> Ethylbenzene „ 0.500 29.2 D <br /> Xylenes(total) 4.504 151 <br /> Sequoia Analytical-Sacramento !Refer to end of report for text of notes and defrrritians. <br /> Ronald W Bobel,Client Services Represe tative Page 2 of 12 <br /> i <br /> { <br />