Marguerite Lanthier/Daily News photo The project to repair and repaint the 50-year-old water tank near the school in Niagara, Wis., is complete and all testing was expected to be done by today. The project, which began in June, included re-coating the inside of the tank, sealing some small leaks and repairing or replacing the inner workings, according to Audrey Fredrick, city administrator/clerk/treasurer. The outside of the tank was repainted in purple and white, the colors of the School District of Niagara, with "Niagara" on the side facing toward the main street and "Badgers" facing toward the football field at the back of the school. The work was completed by L.C. United Painting Co. of Sterling Heights, Mich. The 200,000-gallon tank was refurbished with money from the state’s Safe Drinking Water Loan Program. The project cost $587,650, with the city receiving $352,590 in principal forgiveness but will still pay 1.32% in interest on that portion. They will also pay $235,060 in principal and the same interest rate on the 20-year loan.