Mercer Sanitary District 5054 N Us Hwy 51 Mercer, WI 54547 Phone : (715) 476-3575 Business Category Environmental Conservation & Ecological Services Mercer Town Of--water/sewer Mercer, WI 54547 Phone : (715) 476-3575 Business Category Government Offices-City Village & Twp Government Offices State & Local Government Offices & Public Schools