Water filter service in Trenton, NJ

What is in the water in Trenton

Trenton is served by Trenton Water Works .

Source water: The Delaware River, treated at the city filtration plant. Trenton Water Works is one of the oldest public water systems in the country, and it supplies well beyond the city limits: Trenton itself, Ewing, Lawrence Township and parts of Hamilton all draw on it. If you are in one of those townships, this is the system whose report and lead programme apply to you, rather than anything published by your own municipality. Reported by City of Trenton for 2024.

Surface water from a large river means treatment has to cope with seasonal change in temperature, turbidity and organic content, which is why taste can shift through the year on a supply like this one. The more consequential issue at Trenton has been the distribution system rather than the treatment plant, and the city is rebuilding it under a legal deadline rather than a voluntary schedule.

These figures describe the distribution system. Your own tap can differ, and for lead it very likely does.

We do not yet hold a sourced figure for every field on this page. Where something is missing it is left blank rather than estimated, because an unsourced number here would look like information.

Buildings and plumbing in Trenton

Trenton made lead service line replacement both free and mandatory. Ordinances 24-020 and 24-022, adopted on 4 April 2024, bar the utility and its contractors from charging a property owner any direct fee for the work, including permit fees. An owner may instead replace the line themselves at their own expense within 90 days. Since 2019 roughly 30 percent of the system's lead lines have been replaced, with about 23,000 still to go across Trenton, Ewing, Lawrence and parts of Hamilton, and a legal deadline of 2031 for all lead and galvanised lines. Around 70 million dollars has removed more than 11,000 lines so far, against a typical unsubsidised cost of 5,000 to 10,000 dollars per property, and a 175 million dollar programme is planned.

PFAS in Trenton

New Jersey's PFAS standards are stricter than the federal ones: 14 parts per trillion for PFOA and 13 each for PFOS and PFNA, judged on a running annual average. Because Trenton Water Works draws from the Delaware River rather than from groundwater, its PFAS exposure route differs from the well-based systems elsewhere in the state, where a single contaminated wellfield can drive an exceedance on its own. Surface water systems tend to show lower and steadier concentrations, but that is a generalisation and not a substitute for the current report, which is the only thing that tells you where this system actually stands.

Source: New Jersey Department of Environmental Protection, 2024. More on confirming and treating this on our PFAS page.

What this means in practice

• Chlorine and chloramine taste. Confirm with free and total chlorine test strip, plus the utility report for the disinfectant type.
• Lead in drinking water. Confirm with certified laboratory analysis of a first-draw tap sample.
• PFAS. Confirm with certified laboratory analysis using an epa-approved pfas method.

What these figures mean for filter choice

Lead is a plumbing question rather than a supply question in Trenton, as it is everywhere. What that means practically is that a filter certified under NSF/ANSI 53 for lead at the tap you drink from sits downstream of the entire problem, whereas a whole-house filter at the point of entry sits upstream of nearly all of it and costs several times more.

Filters that apply here

• Lead reduction filters. Point-of-use filters certified for lead under NSF/ANSI 53.
• PFAS reduction systems. Reverse osmosis or a certified activated carbon system aimed at per- and polyfluoroalkyl substances.
• Under-sink carbon filters. A carbon block cartridge on the cold line under the sink.
• Reverse osmosis, tank. A membrane system under the sink that produces treated water to a dedicated tap and stores it in a small pressure tank.
• Whole-house filtration. A filter plumbed into the main line where water enters the building, so every tap, shower, and appliance downstream is fed treated water.

Installation in Trenton

• Free water testing. Typically 45 to 60 minutes.
• Whole-house filter installation. Typically 3 to 5 hours.
• Under-sink reverse osmosis installation. Typically 2 to 4 hours.
• Repair, any brand. Typically 1 to 3 hours.

Renters, co-ops, and businesses

• Options for renters
• Co-ops and condos
• Offices and commercial sites

Local programmes

• TWW Lead Service Line Replacement Program. Free and mandatory replacement under the 2024 ordinances, with a published progress tracker and an address check.

Nearby areas

• Franklin, NJ , Somerset County
• Monroe, NJ , Middlesex County
• Cherry Hill, NJ , Camden County
• East Brunswick, NJ , Middlesex County

Sources

• City of Trenton, 2024.
• New Jersey Department of Environmental Protection, 2024.
• Trenton Water Works, 2024.
• Population: US Census Bureau sub-county population estimates, Vintage 2024 (POPESTIMATE2024).