The population served by the Hornell Department is approximately 12,000. The amount of water treated and used in 1997 was 918,220,000 gallons, and the daily average was 2,515,000 gallons. This process removes tastes and odors through oxidation. Chemical coagulants are used to settle particles suspended in the water. The filter bed is made up of anthracite, sand, and gravel.
Chlorine gas is used to achieve disinfection of bacteria and other water borne organisms.
A 2.5 million gallon steel tank located at the Filtration Plant is used to store finished water. Water conservation helps the environment by preserving this natural resource. Replacing older fixtures with water saving showerheads, faucet aerators, toilet dams, or low flush toilets. Using swimming pool covers to minimize evaporation. Watering lawns less frequently and preferably in early morning or late evening.