Document n0qDDq6ydxkZaqbvpQDQzMOz

DOW CHEMICAL U.S.A. _______________ September 20, 1983 LOUISIANA DIVISION p. O. BOX ISO plaquemine, Louisiana 70764-oibo 504 389-8000 To: R. Usiei/ T. Dufour J. D. Weldon Bill Ledford H. Sinclair Dr. Currier Monitored for potential exposure to Benzene and Toluene while draining 2D-200. Respirators were worn: NAME MASTER NUMBER TIME EXPOSED MINUTES TIME WEIGHTED AVERAGE PARTS PER MILLION BENZENE TOLUENE September 17, 1983 P. Rivet 3663 September 18, 1983 A. Martin 277606 L. Auter 434297 September 19, 1983 A. Martin 277606 September 20, 1983 A. Martin 277606 50 60 90 45 30 1.05 0.23 0.27 0.59 <0.01 0.24 3.08 1.99 0.53 0.30 William Herrick LHC III LA. Division DO 082193 CONFIDENTIAL AN OPERATING UNIT OF THE DOW CHEMICAL COMPANY