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l/ VVV 000004171 Vista Chemical Company 15990 North Barker's Landing Road Post Office Box 19029 Houston, Texas 77224 Phone (713) 531*3200 ; ; r- 0--ia------OW* if v. *' October 5, 1987 Meredith Scheck The Vinyl Institute Wayne Interchange Flaza II 155 Route 46 West Wayne, NJ 07470 VISTA Dear Meredith: During the recent VI Health, Safety, and Environment Committee meeting there was a discussion on the effective date of the Organic Toxicity Characteristic (0TC).

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Lawrence A.

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Uthuli Endaweni yokusebenza Incwadi yokuqeqesha abasebenzi OKUPHAKATHI 1.