The Muskingum County Utilities Office is the customer service center for the Water and Sewer Departments. The office processes applications for water or sewer service, processes payments, responds to customer inquires, maintains both water and sewer system records, etc. 6 mai 2003 · Muskingum County, Ohio - County Website - Offices, Agencies, Commissioners, Trustees, Courts, Public Notices; Muskingum County Planning Commission - Economical Development; Muskingum County Title Office - Clerk Of Courts - Title Office; Muskingum County Utilities Office - Water Department - Sewer Department.