Document 99e5ozbeRq23kE3nnXBKXExJV

' DOW CHEMICAL U.S.A. September 15, 1983 LOUISIANA DIVISION P. O. BOX ISO PLAQUE MINE, LOUISIANA 70764-0150 604 389-6000 R* Usie T. Dufour J. D. Weldon Em Ledford Dr. Currier H. Sinclair MONITORED FOR POTENTIAL. EXPOSURE TO BENZENE, TOLUENE, ETHYL BENZENE, AND STYRENE WHILE DRAINING 2D-200. Respirators were worn: Master Name Number Time Exposed Minutes September 1, 1983 D. Dwyer 3401 25 September 12, 1983 H. LeBlanc 1799 195 September 13, 1983 C. Allen 4241 60 September 14, 1983 C. Allen 4341 40 Benzene 8-Hour Time Weighted Average Part Per Million Ethyl Toluene Benzene 'Styrene 1.44 0.35 <0.01 <0.01 0.71 0.19 <0.01 0.02 2.07 0.38 <0.01 <0.01 6.07 1.09 0.11 <0.01 1 in*' William M. Herrick Light Hydrocarbon III - Lab jys DO 082192 CONFIDENTIAL AN OPERATING UNIT OF THE DOW CHEMICAL COMPANY