Document EqbXRrV4kaZRQRqQBx96ZO8ML

DOW CHEMICAL U.S.A. i September 2, 1983 1 LOUISIANA DIVISION P O. BOX 160 PLAOUEM1NE, LOUISIANA 70764-0^60 604 369-8000 R. Usle T. Dufour B. Ledford ^ J. D. Weldon H. Sinclair at LHC II for Benzene and s* f / Monitor Location / Number 6-Hour Time Weighted Average Minutes Parts Per Million In Service Benzene Toluene Northwest Northeast South Southeast Southwest Southwest ? ? ID 1160 ID 1170 ID 0842 ~ ID 1263 ID 0905 IM 0470 IM 0708 IM 0790 380 380 325 465 380 380 360 360 0.41 0.22 0.27 0.72 0^55 0.57 0.9^' 0.63 0.11 0.07 0.05 0.15 0.13 0.16 ^0.16J> 0.11 3JL.LL L* Ob/ 2p- W. M. Herrick Light Hydrocarbon III - Lab jys DO 082102 CONFIDENTIAL AN OPERATING UNIT OF THE DOW CHEMICAL COMPANY