Decatur, IN · PWSID IN5201002
Decatur Water Department lead service lines
65 lead or galvanized lines to replace
Decatur Water Department reported 65 lead and 0 galvanized-requiring-replacement service lines out of 4,614 in its inventory. That's about 1 in 71 lines. Another 2,580 (56%) are still listed as unknown material.
Ranks #84 of 232 Indiana systems with confirmed lead lines, and #2,330 nationally.
1.4% of Decatur Water Department's service lines are lead or galvanized requiring replacement. That's lower than the Indiana average (9.0%) and lower than the national average (3.1%).
- Lead 1.4%
- Galvanized (replace) 0%
- Unknown 56%
- Non-lead 43%
Total service lines reported: 4,614. Reported all required service line types. Population served: 9,900; 4,600 connections.
Lead test results
Decatur Water Department's most recent 90th-percentile lead result (2024) was 12.7 ppb, below today's 15 ppb action level but above the 10 ppb level that takes effect November 1, 2027. This means 90% of homes sampled were at or below that level; individual homes, especially those with lead lines, can be higher.
Lead and Copper Rule 90th-percentile results reported to EPA, in parts per billion. Dashed lines: 15 ppb action level and the 10 ppb level from November 1, 2027.
Progress since 2025 Q1
Reported lead and galvanized-requiring-replacement lines went from 65 in 2025 Q1 to 65 in 2026 Q3: no change. Lines of unknown material went from 2,580 to 2,580, no change.
Quarterly counts reported to EPA. A drop usually means lines were replaced or confirmed non-lead; a rise usually means more lines were identified. Replacement progress rankings.
Lead rule violations
EPA's data lists no Lead and Copper Rule violations for Decatur Water Department since 2015. That covers testing, reporting, corrosion control and public notice requirements; it isn't a guarantee about any individual home.
Source: EPA SDWIS violation records for the Lead and Copper Rule.
Where the water comes from
Decatur Water Department's main water source is groundwater (wells). It sells water to 1 other water system: Monroe Water Department.
Source: EPA SDWIS water system and facility records.
Check your own address
These counts cover the whole system. To see whether your line is lead, use the utility's address-level inventory. Utilities had to prepare one by October 16, 2024 and make it publicly accessible; systems serving more than 50,000 people must post it online.
No map yet? Do the 2-minute scratch and magnet test on the pipe where water enters your home.
Protect your drinking water now
If your line is lead, galvanized or unknown, filter water for drinking, cooking and baby formula. Use a filter certified to NSF/ANSI 53 for lead. Run cold water for a few minutes after it sits for hours, and never use hot tap water for cooking.
How to pick a lead-certified filter · How to test your water for lead
Getting the line replaced
EPA's Lead and Copper Rule Improvements require most systems to replace lead and galvanized-requiring-replacement lines by December 31, 2037. Ask Decatur Water Department whether it replaces the private side for free or with a cost share before you hire anyone. If you want it done sooner, or your utility doesn't cover your side, a licensed plumber can quote it. What replacement costs.
County pages: Lead pipes in Adams County
Cities served
ZIP codes served
ZIP codes whose center falls inside Decatur Water Department's mapped service area (EPA service area boundaries). Neighboring utilities may serve parts of the same ZIP.
46733
Other water systems nearby
| System | Lead + galv. | Unknown |
|---|---|---|
| Berne Water Department | 88 | 0 |
| Geneva Water Department | 23 | 0 |
| Monroe Water Department | 0 | 116 |
| Riverbend Estates | 0 | 3 |
Check another water system
Questions
Does Decatur Water Department have lead pipes?
Yes. Decatur Water Department reported 65 lead service lines and 0 galvanized lines that must be replaced, out of 4,614 total. 2,580 more are of unknown material.
How do I check if my home's service line is lead?
Look up your address on Decatur Water Department's official service line inventory, which utilities must make publicly available. You can also scratch the pipe where it enters your home: lead is soft, dull gray, scratches to shiny silver and does not attract a magnet.
When will Decatur Water Department replace lead service lines?
Under EPA's Lead and Copper Rule Improvements, most systems must replace lead and galvanized-requiring-replacement lines by December 31, 2037, starting from November 1, 2027. The rule is being challenged in court, so dates could change. Many utilities run free or cost-share programs now.
Has Decatur Water Department had lead violations?
EPA's data shows no Lead and Copper Rule violations since 2015 for Decatur Water Department.
Which water filters remove lead?
Use a filter certified to NSF/ANSI Standard 53 for lead reduction, or NSF/ANSI 58 for reverse osmosis. Check the certification on NSF's listings, not just the box.
Embed or cite this data
Local news sites, blogs and community groups can embed this card. It updates when EPA releases new data.
Citation: Lead Pipe Map, "Decatur Water Department lead service lines," https://leadpipemap.com/in/decatur-water-department/. Source: EPA SDWIS service line inventory, 2026 Q3. Download the full dataset on the data page.