Quality On Tap 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. Pay My Bill Customer Alerts Quality On Tap 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. Pay My Bill Customer Alerts (740) 548-7746 Announcements: Delaware Area Career Center creates video on water plant expansion. 45th Annual Del-Co Water Meeting 44th Annual Del-Co Water Meeting Del-Co Water a founding member of the Association of Regional Water Organizations O’Shaughnessy Pump Station Project in Construction