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JAN 04 199 03 29PM SEQUOIA/SAC P 5 <br /> Sequoia680 Chesapeake Drive Redwood City,CA 94053 (650)364-96 FM(650)364-9x33 <br /> a— ) 4011 N Wli et Lane Walnut Creek CA 94598 (915)988-9600 FAX(925)988.9673 <br /> 819 Striker Avenue,Suite 8 Sacramento,CA 95634 (916)921-9600 FAX(916)921-0100 <br /> Analytical 1455 McDowell Bivci North.See o Petalumti CA 94954 (707)792-1865 FAX(707)79I-0342 <br /> E <br /> ironmental Group-Sac Project Unocal 0123,Tracy,CA Sampled 10/22/98 <br /> ise Gold Circle St M ProjeetNumber 910-017 lA Received 10/22/98 <br /> dova,CA 95742 Pra ect Manager Mike Mttchener R orted 10/30/98 <br /> Diesel Hydrocarbons(C10-C24)by DHS LUFT <br /> Sequoia Analytical-Sacramento <br /> Batch Date Date surrogate Repomng <br /> lAnalyte Number Prepared Analyzed Lumts Limit Result tTnits Nosoa* <br /> I U- 5810250-01 Water <br /> Extractable Hydrocarbons 8100281 10126_/98 10/2.6_/9.800500 ND mg/1 <br /> Surrogate Pentacosane " 500-ISO 100 M <br /> 1L-S S810250-02 Water <br /> Extractable H drocorbons 8100181 10/26/98 10/26/98 00500 0.312 MO 2 <br /> Surrogate Panlacosane " " " 500-150 945 % <br /> equota Analytical-Sacramento 'Refer to end of report for text of notes and def n:t,ons <br /> IL — <br /> Linda C Schneider,Laboratory Director ,p Page 3 of 12 <br /> .07; <br />