Document MJN4n5N8ZRaBjYXD7E4eYNa1L

(conoco) Interoffice Communication To From Date Subject T. G. Waltrip W. G. Geubelle March 21, 1988 Benzene/Total Hydrocarbon Results from Personal Monitoring Technical Services Laboratory On February 22, 1988, personal monitoring was done over an eight-hour period to determine exposure levels of benzene and total hydrocarbons in the Technical Services Laboratory. The attached results show no exceedances of the OSHA 1 ppm benzene and 300 ppm total hydrocarbon limits for an eight-hour period. By copy of this memo, all TSL personnel are being notified of the results. Please let me know if there are any questions concerning this testing. W. G. Geubelle bl cc: Michael L. Alden Mario B. Ascarrunz Robert A. Blckle Laura E. Bishop Kim H. Burns Janet A. Davis Charles G. Eagan Oliver F. Engle^ Charles K. Hanby Yvonne Y. Ho Jeffrey C. Kellison Betty L. Lemaster Melvin M, McFeeters Clifford 0. Mills Gregory Mltacek Derrell D. Orrell Nancy R. Plggee Gayle Y. Porch James H Rosenow William E. Walker SAL 000000934- T. G. Waltrip March 21, 1988 Page 2 PERSONAL MONITORING RESULTS Employee Monitored TSL Job/Location Sampling Date Benzene Total Hydrocarbons L. E. Bishop K. H. Burns Y. Y. Ho C. 0. Mills G. Mitacek N. R. Plggee G. Y. Porch V. E. Walker GC Analysis/Gas Lab Dally Analytical/North Lab Lube Analysis/X-Ray Lab Special Analytical/All Locations Fuels/All Locations Nitrogen Analysis/Nitrogen Lab Water Analysis/North Lab Dally Analytical/Middle Lab 2/22/88 2/22/88 2/22/88 2/22/88 2/22/88 2/22/88 2/22/88 2/22/88 <0.058 0.0707 0.452 <0.060 <0.058 <0.056 <0.057 <0.057 1.03 6.57 60.9 0.405 0.468 0.148 0.636 1.75 (1) 8-hour time weighted average. The OSHA permissafale 8-hour time weighted average exposure limit levels for benzene is 1 ppm and 300 ppm for total hydrocarbons. NOTE: The Ponca City Refinery Safety Dept, assisted with the monitoring. Each employee monitored wore a passive dosimeter for an 8-hour period. The samples taken were analyzed by CTEK Inc., Plscataway, NJ. J SAL 000000935