Kingsport City Officials have cut the ribbon on a completely renovated wastewater treatment plant in the model city. Public works director, Ryan McReynolds said the improvements and upgrades will be close to $24 million. He added that the new facilities should keep the model city in compliance with environmental regulations for at least the next 20 years. The upgrades will allow for an additional 20,000 households and several large industrial customers to come online with the Kingsport Wastewater Treatment System.(CS)