Guernsey County Water Department Click the link below to pay your Guernsey County Water bill online. ONLINE BILLPAY Follow the link below to see the Ohio EPA Service Line Inventory OHIO EPA SERVICE LINE INVENTORY SPREADSHEET Address:Guernsey County Water Department 11272 E Pike Rd Cambridge, OH 43725 Phone:(740) 439-1269 HoursMonday: 8AM–4PM Tuesday: 8AM–4PM Wednesday: 8AM–4PM Thursday: 8AM–4PM Friday: 8AM–4PM Saturday: Closed Sunday: Closed
