Who We Are
Trenton Water Works
Trenton Water Works (TWW) is among the largest publicly owned, urban water utilities in the United States. It supplies an average of 27-million gallons of Delaware River-sourced drinking water per day to 63,000 metered customers. It services approximately 225,000 people in Trenton, parts of Hamilton Township, Ewing Township, Lawrence Township and Hopewell Township in Mercer County, New Jersey.
Established more than 200 years ago, TWW has 119 employees who operate a sprawling 60-million-gallon water-filtration plant and water-distribution system that includes a 100-million-gallon reservoir. The system has 683 miles of transmission lines varying in size from 4 to 48 inches in diameter, three pump stations and five interconnections between TWW and other water purveyors.
Trenton Sewer Utility
The Trenton Sewer Utility protects the health of the public, Delaware River, and the surrounding Environment by providing the City of Trenton with dependable and efficient collection, treatment, and disposal of wastewater, storm-water, and biosolids that are generated within the city daily.
Trenton Sewer Utility houses a 20 mgd (million gallons/day) Waste Water Treatment Plant, treating both domestic and industrial sewage. It is a 24 hour/day, seven day/week operation. The plant must meet numerous State regulations.
The City has 180 miles of sanitary sewer mains, and 5 sanitary sewer lift stations. Most of the lines are in the streets or alleys. Some run through utility easements in grassy areas. Each year, the City cleans approximately one-fifth of the City's sanitary sewer lines. Lines requiring a higher level of maintenance are cleaned more frequently. This routine maintenance helps to prevent blockages and backups.
The Sewer Utility is a secondary treatment plant which generates effluent — or outflow — of a very high quality which helps to safeguard the environment. Treated sewage commonly has over 97% of its suspended solids and over 97% of its 5-Day BOD (Biochemical Oxygen Demand) removed before it is discharged into the Delaware River.
Sewer Utility personnel use specialized jetting and root cutting equipment, as well as TV monitoring, to maintain and improve system flow to assess pipe conditions and detect potential problem areas. Also part of the New Jersey One-Call System, maintenance personnel must respond to underground utility mark-out requests.