What EPA's Updated Lead Pipe Data Means for Older Homes in Gloucester Township

For years, the EPA's working estimate was that somewhere around 9 million lead service lines were still delivering water to homes across the country. In late 2025, after a mandatory nationwide inventory process required under the 2021 Lead and Copper Rule Revisions, the agency revised that number down significantly, to an estimated 4 million lead service lines nationally (EPA, 2025 DWINSA Update). The drop reflects better data collection, not fewer pipes suddenly appearing. Utilities that previously reported pipe material as "unknown" were required to actually investigate, and many of those lines turned out to be copper or galvanized steel rather than lead.

Even at the revised, lower figure, 4 million lead service lines is a significant number, and lead pipes remain concentrated in exactly the kind of older housing stock found throughout parts of Gloucester Township and the broader South Jersey region.

Lead pipes were banned nationwide under the Safe Drinking Water Act in 1986, but that ban only stopped new installations. It didn't require removal of existing lead lines already in the ground. Homes built before that date, particularly those that haven't had their water service line replaced since original construction, carry meaningfully higher odds of having lead somewhere between the water main and the house.

It's worth being specific about where lead risk actually concentrates. The service line, the pipe connecting a home to the municipal water main, is one of the most common sources. Older brass or bronze faucets and fixtures are another, since these can contain lead components even in homes with fully non-lead supply lines. A home can have a modern copper or PVC service line and still have lead exposure risk through an old fixture, which is why pipe material alone doesn't tell the whole story.

What the EPA's New Regulations Actually Require

In October 2024, the EPA finalized the Lead and Copper Rule Improvements, which set a firm 10-year deadline for water systems to identify and replace every lead service line in their system, and lowered the regulatory action level for lead in drinking water from 15 parts per billion to 10 parts per billion. Water utilities nationwide are now in the process of building out replacement timelines to meet that mandate, but utility-side replacement only covers the public portion of the line, from the water main to the property boundary. In many jurisdictions, the section running from the property line to the house itself remains the homeowner's responsibility.

That distinction matters practically. Even after a utility completes its portion of a lead service line replacement, a home could still have lead piping on the private side of the line unless that section gets addressed separately.

How to Find Out What's Actually Running to Your Home

Many municipal water utilities have published, or are in the process of publishing, service line inventories identifying which properties have known or suspected lead lines, part of the same 2024 reporting requirement that drove the EPA's updated national estimate. Checking with your local utility is the fastest way to get a straight answer for your specific address. If your utility lists your line's material as unknown, that itself is worth following up on, since a meaningful share of the EPA's revised estimate came from previously unknown lines that turned out to be lead once actually inspected.

For homes where the service line material can't be confirmed through records, a plumbing professional can often help identify pipe material through a visual inspection where the line enters the home, since lead pipes have a distinct dull gray appearance and a soft consistency compared to the harder look of copper or the ridged texture of galvanized steel.

What Homeowners Can Do in the Meantime

If your home has a confirmed or suspected lead service line and full replacement isn't imminent, a few practical steps reduce exposure risk in the meantime. Running the cold tap for a minute or two before use, particularly first thing in the morning or after water has sat in the pipes for several hours, flushes out water that's had the most contact time with any lead in the line. Using cold water for drinking and cooking is also worth noting, since hot water dissolves lead more readily than cold.

For households wanting a more comprehensive solution, whole-home or point-of-use filtration certified specifically for lead reduction addresses the exposure question directly rather than relying on flushing habits alone. We've covered the broader case for filtration in our guide on why more homeowners are installing water filtration systems, which includes a comparison of system types suited to different household needs.

When Replacement Makes Sense

For a confirmed lead service line, replacement is the only solution that removes the risk permanently rather than managing it. This isn't a simple pipe swap in most cases, since it typically involves coordination with the local water utility for the public-side portion of the line, along with excavation work for the private-side section running to the house. Our overview of what homeowners should know about water line permits covers the regulatory side of this process, which varies depending on your specific municipality within Gloucester Township and Camden County more broadly.

Given the scale of the EPA's replacement mandate and the funding now flowing through the Drinking Water State Revolving Fund to support it, many homeowners may find utility-side replacement happening on a set timeline whether they request it or not. Getting ahead of the private-side portion, and confirming your home's actual pipe material rather than assuming based on the age of the house alone, is the more proactive path. A plumber Gloucester Township residents trust can inspect your service line entry point and outline what replacement would involve if lead is confirmed.