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• Sequoia680 Chesapeake Drive Redwood City CA 94063 (650) 364 9600 FAX(650)364 9233 <br /> 404 N W�get Lane Walnut Creek CA 94598 (510) 988 9600 FAX(510)988 9673 <br /> Analytical 819 Striker Avenue,Suite 8 Sacramento,CA 95834 (916) 921 9600 FAX (916)921 0100 <br /> i <br /> Upgradlent Environmental Consultants Project Conrady Sampled 4/24198 <br /> 336 Augusta Court Project Number N/A Received 4124198 <br /> Valley Sp,CA 95252 Project Manager Vic Cherven Reported 5/13198 <br /> Total Purgeable Hydrocarbons(C6-C12) and BTEX by DHS LUFT <br /> • Sequoia Analytical-Sacramento <br /> Batch: Date Date Surrogate Reporting <br /> LAnalto Number Prepared Analyzed Limits Limit Result Units Notes* <br /> Mme'-6(continued) S804222-05 Water <br /> Benzene 8040224 4/28198 4/28/98 250 ND ug/l <br /> Toluene 250 157 " <br /> Ethylbenzene 250 565 " <br /> Xylenes(total) 250 323 " <br /> Surrogate a a a-Trifluorotoluene 600-140 931 % <br /> VW-1 5894222-06 Water <br /> • Purgeable Hydrocarbons 8040213 4/27198 4127198 Soo 68 4 ug/I <br /> Benzene 0 500 0 857 " <br /> Toluene 0 500 ND " <br /> Ethylbenzene 0 500 ND " <br /> Xylenes(total) 0 500 0 536 " <br /> Surrogate a a a-Trifluorotoluene 600-140 93 7 % <br /> '- S804222-07 Water <br /> Purgeable Hydrocarbons 8040213 4127198 4/27198 500 ND ug/1 <br /> Benzene 0 500 0 824 " <br /> Toluene 0 500 ND " <br /> Ethylbenzene 0 500 ND " <br /> Xylenes(total) 0 500 ND " <br /> 4P Surrogate a,a a-Trifluorotoluene 600-140 98 6 % <br /> SW-1 S804222-08 Water <br /> Purgeable Hydrocarbons 8040224 4128198 4128198 25000 138000 ug/l l <br /> Benzene 250 379 " <br /> Toluene 250 25600 " <br /> Ethylbenzene 250 4950 " <br /> Xylenes(total) 250 26800 " <br /> Surrogate a a,a-Trifluorotoluene " " " 600-140 93 1 % <br /> S-W--2 5804222-09 WateL <br /> Purgeable Hydrocarbons 8040224 4/28/98 4/28/98 250 1950 ug/1 1 <br /> Benzene 250 386 " <br /> 40 Toluene 2 50 874 " <br /> Ethylbenzene 250 Ill " <br /> Xylenes(total) 250 129 " <br /> Surrogate a,a,a-Trtfluorololuene 600-140 966 % <br /> 0 <br /> Sequoia lytical-Sacramento *Refer to end of report for text of notes and definitions <br /> inda C Schneider,Laboratory Director Page 3 of 10 <br />