Document 5beRpOk6Xb9vZzjE4JNo9oeo4

Vista Chemical Company 15990 North Barker's Landing Road Post Office Box 19029 Houston, Texas 77224 Phone (713) 531-3200 February 2, 1988 ;\n. r;'\Zf :'F: i Mr. Steve Wolf Nalco Chemical Company One Nalco Center Naperville, IL 60566-1024 VIS1A Dear Steve: As we discussed, following is our response to the attached letter regarding Proposition 65 listed chemicals in the Vista products Nalco currently purchases. This response deals with the following products: Vista ALFOL 20+ Alcohol Vista ALFOL 1218 DCBA Alcohol Vista ALFOL 1218 DBBC Alcohol Vista ALFOL 610 AFC Alcohol Vista ALF0NIC 610-50 Alcohol Ethoxylate Vista ALFONIC 1412-40 Alcohol Ethoxylate Methyl Chloride LPA Solvent The ALFOL Alcohols and Methyl Chloride are not on the Proposition 65 list, nor do they contain detectable amounts of the listed chemicals on the list. Vista LPA Solvent is considered a mineral oil, but it is Vista's determination that this oil is not covered by the references (specifically IARC Monograph 33) which were used as the basis for the Proposition 65 listing. A copy of our hazard determination is attached. The alcohol ethoxylates contain measurable amounts of ethylene oxide. Typical residual levels are less than 1.0 ppm, although individual shipments may vary in the amount present. The alcohol ethoxylate material safety data sheets contain a statement regarding the potential for residual ethylene oxide. Sincerely, Thomas^O. Grumbles, C.I.H. Environmental Quality Manager ajo Attachments cc Joe Nigro Andrew Smith VVV 000009996