Dayton Lead Service Line Replacement Program
Dayton Public Water System serves about 141,407 people and reported 8,588 lead and 937 galvanized service lines that must be replaced, out of 64,429 lines, in EPA's Q3 2026 inventory. Here's who pays to replace yours, what it costs, and how to sign up.
Owner pays; city coordinates
In Dayton the homeowner pays to replace the private side of a lead service line, but the city notifies owners when lead is found and helps coordinate the work with a plumber the owner chooses. The city has handed out free pitcher filters and test kits. Owners are asked to scratch- or magnet-test their line for the Service Line Compliance Program.
How to get it
- Scratch-test or magnet-test your line and report it to Dayton Water.
- If it's lead, ask Dayton Water to coordinate the public-side work with your plumber.
- Get several quotes; see our cost guide for typical prices.
Sources: daytonohio.gov, lslr-collaborative.org
Lead lines in Dayton
The most recent 90th-percentile lead result EPA lists for this system is 0 parts per billion (2024-01 to 2026-12). Under the new federal rule, the action level drops to 10 ppb in 2027. Galvanized lines count if they ever sat downstream of a lead pipe, because they can hold lead particles. Unknown lines must be identified by the utility, and many turn out to be lead.
How Dayton compares: it ranks #51 of 7,556 U.S. water systems and #4 of 265 in Ohio for lead and galvanized lines. 14.8% of its service lines need replacing, compared with 11.5% across Ohio. See the national ranking.
Source: EPA SDWIS Service Line Inventory, Q3 2026 · Utility phone: 937-333-6099 · PWSID OH5703512
Dayton lead service line map: check your address
Every water utility had to publish an inventory of its service lines, and most offer an address lookup map. Start with Dayton Public Water System's official lead program page, which links to its lookup or explains how to get your line checked. The status will be lead, galvanized requiring replacement, non-lead or unknown. If it's unknown, you can usually check the pipe yourself and send the utility a photo.
Communities and ZIP codes served
ZIP codes: 45315, 45402, 45403, 45404, 45405, 45406, 45410, 45417, 45423, 45428, 45469
Who pays in Ohio?
Ohio has no state law that makes utilities pay for the private side, so each city sets its own policy. The results range widely: Cincinnati and Columbus replace for free, Cleveland covers the private side when it works on the public side, and Dayton leaves the cost to owners. Ohio EPA passes federal money to cities as principal forgiveness through its Water Supply Revolving Loan Account.
The law: Federal Lead and Copper Rule Improvements, enforced by Ohio EPA. Mandatory? No state law requires owners to replace, but the federal rule requires utilities to replace all lead lines by 2037. Funding: Ohio EPA Water Supply Revolving Loan Account (federal lead line money with principal forgiveness).
Sources: epa.ohio.gov
Nationwide, EPA's Lead and Copper Rule Improvements require most utilities to replace every lead and galvanized-requiring-replacement line by December 31, 2037, starting November 1, 2027. Utilities must mail a notice every year to each home with a lead, galvanized or unknown line. See the federal timeline.
What would you pay?
Many utility loans are 0% (enter 0). Private loans run higher. Your real price depends on how far the house sits from the street, digging versus trenchless methods, permits and restoration. This is an estimate, not a quote.
Not covered, or can't wait?
Get up to 3 quotes from licensed plumbers who replace service lines in Dayton.
Common questions
Is lead service line replacement free in Dayton?
No. In Dayton the homeowner pays to replace the private side of a lead service line, but the city notifies owners when lead is found and helps coordinate the work with a plumber the owner chooses.
Is lead service line replacement mandatory in Dayton?
No state law requires owners to replace, but the federal rule requires utilities to replace all lead lines by 2037.
How much does it cost to replace a lead service line in Dayton?
Most private-side replacements cost about $4,000 to $10,000, and long or difficult lines can run higher. Price depends on the distance from the street to your house, whether the contractor digs a trench or pulls the new pipe through (trenchless), permits, and restoring your lawn, sidewalk or basement wall.
How do I know if my home has a lead service line?
Look up your address on Dayton Public Water System's service line inventory or check the letter it mailed you. You can also check the pipe where it enters your basement, usually near the meter: lead is dull gray, soft, and turns shiny silver when you scratch it with a key, and a magnet won't stick. Galvanized steel is gray too, but a magnet sticks to it. See our step-by-step guide.
What if I can't afford to replace my lead line?
Ask Dayton Public Water System about income-based help first; federal money often makes replacement free for low-income owners. Other options are utility payment plans, 0% city loans, state revolving fund programs, property tax assessments and home improvement loans. Our guide on paying for replacement lists them.
Who owns the water service line?
In most U.S. cities the utility owns the pipe from the water main to the curb stop or property line, and the property owner owns the rest, into the house. Some utilities, including Minneapolis and many in St. Louis County, treat the whole line as the owner's. Federal rules now require utilities to replace the whole lead line, not just their part.
Other Ohio programs
Cleveland ✓Cincinnati ✓Columbus ✓Toledo ✓Akron ✓Sandusky ✓MiddletownHamilton ✓Lakewood ✓Marion (Aqua Ohio) ✓
Something out of date? Report a change. We recheck program terms at least once a year.