Document NNpwq4b2jwbVYoN2yVk76w418

Visto Chemical Company 15990 N. Barker's Landing Rd. Post Office Box 19029 Houstonjexas 77224 Phone (713) 531-3200 July 24, 1986 Ms. Sandy Dennis Keller & Heckman 1150 17th Street, NW Suite 1000 Washington, DC 20036 Dear Sandy: As we discussed, enclosed is the draft of our application package for your review prior to agency submittal. Attached to this letter are two documents that could be submitted as additional toxicity data to support the data exemption request or give the agency more general data on human toxicity potential. Since this product is a blend of alkyl-benzene homologs the table 1-D attached might be helpful. Please ask Chuck to review these documents and advise as to their potential usefulness in the application. Sincerely, Thomas G. Grumbles, C.I.H. Environmental Quality Manager ajo/9 Attachment VVV 000015366 TO: Harry Garrison ok Interoffice Communication FROM: DATE: SUBJ: T. G. Grumbles July 24, 1986 PLANT HAZARD COMMUNICATION PROGRAM VISTA I just reviewed the plant program as contained in the "big blue book". Randy should be congratulated on a job well done. In particular the section on how to read and understand MSDS's is an excellent and original presentation idea. I don't believe any other plant has done it in such detail. Thomas G. Grumbles ajo/9 cc RTF vvv 000015367