About Us Del-Co Water is 501(c) - corporation, a non-profit company, with a mission to provide high quality and safe drinking water to our members / customers. Contact Us Delaware (740) 548-7746 Marengo (419) 253-6003 Recent News 44th Annual Del-Co Water Meeting06/21/2017 Del-Co Water a founding member of the Association of Regional Water Organizations03/23/2017 O’Shaughnessy Pump Station Project in Construction03/15/2017 Recent News: 44th Annual Del-Co Water Meeting06/21/2017 Del-Co Water a founding member of the Association of Regional Water Organizations03/23/2017 O’Shaughnessy Pump Station Project in Construction03/15/2017 HomeServe to offer service line protection plans03/14/2017 DACC Student Video07/28/2016 ** Tap Fee increase as of June 1st, 2017.** Click here for more information. (740) 548-7746