Iowa · population 5,620
Lead pipes in DeWitt, IA
64 lead or galvanized lines to replace
Most of DeWitt (population 5,620) gets its water from De Witt Water Supply. That system reported 64 lead and 0 galvanized-requiring-replacement service lines out of 2,327, with 156 more of unknown material.
2.8% of De Witt Water Supply's service lines are lead or galvanized requiring replacement, lower than the Iowa average (5.6%) and about the same as the national average (3.1%).
- Lead 2.8%
- Galvanized (replace) 0%
- Unknown 6.7%
- Non-lead 91%
Latest lead test for De Witt Water Supply (Jan 2023–Dec 2025): 3.4 ppb at the 90th percentile, against a 15 ppb federal action level. Full test history.
Compliance record: EPA lists no Lead and Copper Rule violations since 2015 for De Witt Water Supply.
Water systems serving DeWitt
| Water system | Lead | Galv. | Unknown | % lead |
|---|---|---|---|---|
| De Witt Water SupplyMain system | 64 | 0 | 156 | 2.8% |
Matched from EPA water system service area boundaries and the cities each system reports serving. Edges of the city may be served by a neighboring system; your water bill names your utility.
Check your address in DeWitt
The counts above cover the whole water system. To see whether your line is lead, look up your address on De Witt Water Supply's official inventory. Utilities had to make these public by October 16, 2024.
No map yet? Do the 2-minute scratch and magnet test.
Protect your drinking water
If your line is lead, galvanized or unknown, use a filter certified to NSF/ANSI 53 for lead for drinking, cooking and baby formula, and use only cold water.
Choosing a lead-certified filter · Testing your water · Replacement cost
Nearby cities
- Eldridgeno lead reported
- Camanche1 lead + galv. lines
- Clinton889 lead + galv. lines
- Le Claire9,628 lead + galv. lines
- Bettendorf9,628 lead + galv. lines
- Davenport9,628 lead + galv. lines
- Durant23 lead + galv. lines
- Blue Grass9,628 lead + galv. lines
Check another water system
Questions
Does DeWitt, IA have lead pipes?
Yes. De Witt Water Supply, which serves DeWitt, reported 64 lead and 0 galvanized-requiring-replacement service lines, plus 156 of unknown material.
Who supplies water to DeWitt?
EPA's service area maps place most of DeWitt in De Witt Water Supply's service area (PWSID IA2330036).
How do I check whether my DeWitt home has a lead service line?
Search your address on De Witt Water Supply's service line inventory map. You can also scratch the pipe where water enters your home: lead is soft, dull gray, scratches to shiny silver and doesn't attract a magnet.
When will lead pipes in DeWitt be replaced?
EPA's Lead and Copper Rule Improvements require most systems to replace lead and galvanized-requiring-replacement lines by December 31, 2037. Ask De Witt Water Supply whether your street is scheduled and whether it covers the private side.