CONSENT OF INDEPENDENT PUBLIC ACCOUNTS As independent public accountants, we hereby consent to the incorporation by reference in this registration statement of our reports dated January 27, 1997, included in and incorporated by reference in WICOR, Inc.'s Form 10-K for the year ended December 31, 1996 and to all references to our firm included in this registration statement. /s/ Arthur Andersen LLP ARTHUR ANDERSEN LLP Milwaukee, Wisconsin December 17, 1997