Clerk’s OfficeIllinois Pollution Control Board100 W.
Randolph, Suite 11-500
Chicago, IL 60652Re: R11-18In the Matter of: Triennial Review of Water Quality Standards for Boron, Fluoride andManganese: Amendments to 35 Ill.
Marathon is concerned about the
potential delay in the rule becoming effective because of interest relating to other proposed ruleamendments included in the package, in particular amendments relating to boron.
Sincerely,
James L.
Machin, P.E.
cc: J. Gregory Smith, Senior Attorney, Marathon Petroleum Company LP
Case Files 
