Iowa · population 1,030
Lead pipes in Dunlap, IA
173 lead or galvanized lines to replace
Most of Dunlap (population 1,030) gets its water from Dunlap Water Supply. That system reported 0 lead and 173 galvanized-requiring-replacement service lines out of 572, with 91 more of unknown material.
30% of Dunlap Water Supply's service lines are lead or galvanized requiring replacement, higher than the Iowa average (5.6%) and higher than the national average (3.1%).
- Lead 0%
- Galvanized (replace) 30%
- Unknown 16%
- Non-lead 54%
Latest lead test for Dunlap Water Supply (Jan 2023–Dec 2025): 3 ppb at the 90th percentile, against a 15 ppb federal action level. Full test history.
Compliance record: EPA lists 1 Lead and Copper Rule violation since 2015 for Dunlap Water Supply.
Water systems serving Dunlap
| Water system | Lead | Galv. | Unknown | % lead |
|---|---|---|---|---|
| Dunlap Water SupplyMain system | 0 | 173 | 91 | 30% |
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 Dunlap
The counts above cover the whole water system. To see whether your line is lead, look up your address on Dunlap 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
Check another water system
Questions
Does Dunlap, IA have lead pipes?
Yes. Dunlap Water Supply, which serves Dunlap, reported 0 lead and 173 galvanized-requiring-replacement service lines, plus 91 of unknown material.
Who supplies water to Dunlap?
EPA's service area maps place most of Dunlap in Dunlap Water Supply's service area (PWSID IA4316087).
How do I check whether my Dunlap home has a lead service line?
Search your address on Dunlap 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 Dunlap 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 Dunlap Water Supply whether your street is scheduled and whether it covers the private side.