The Middletown Water and Sewer Department is a municipally-owned and operated utility serving approximately 11,000 accounts and 40,000 Middletown residents. It oversees a water system of three reservoirs (approximately 1,600 acres of reservoir and watershed land), a well field, two water-treatment plants, pumping stations and water-storage tanks. There are also approximately 200 miles of water mains and 160 miles of sewer lines in the city. Its operations are overseen by the Middletown Water Pollution Control Authority, a seven-member board consisting of two members of the Common Council and five citizens appointed by the council.
Fees for water and sewer services are based on connections to the systems and per-thousand cubic feet of usage. Bills are calculated and sent out by the department; payments go to the city tax collector's office. Customers can arrange to be billed monthly or twice a year.
Regular meetings of the authority are held on the first Thursday of each month at 7 p.m. in the department's Berlin Street offices.