(1) shall, with the Collector, have the same power in assessing, levying, and collecting the tax as town officers have in assessing and collecting town taxes, including collection of interest and overdue taxes;

(2) may expend sums for acquiring, constructing, and maintaining sewers and sewage treatment works, waterworks, water companies, and all equipment and real estate used in connection with the District as the District shall vote;

(3) may use and occupy portions of the town highway within the District as may be necessary for the construction, installation, and maintenance of the facilities as long as those portions of town highways used are returned to existing or better condition and construction will not leave roads impassable for municipal services or emergency vehicles.