Iowa · population 4,095
Lead pipes in Monticello, IA
6 lead or galvanized lines to replace
Most of Monticello (population 4,095) gets its water from Monticello Water Supply. That system reported 6 lead and 0 galvanized-requiring-replacement service lines out of 1,735, with 440 more of unknown material.
0.3% of Monticello Water Supply's service lines are lead or galvanized requiring replacement, lower than the Iowa average (5.6%) and lower than the national average (3.1%).
- Lead 0.3%
- Galvanized (replace) 0%
- Unknown 25%
- Non-lead 74%
Latest lead test for Monticello 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 no Lead and Copper Rule violations since 2015 for Monticello Water Supply.
Water systems serving Monticello
| Water system | Lead | Galv. | Unknown | % lead |
|---|---|---|---|---|
| Monticello Water SupplyMain system | 6 | 0 | 440 | 0.3% |
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 Monticello
The counts above cover the whole water system. To see whether your line is lead, look up your address on Monticello 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
- Anamosa29 lead + galv. lines
- Cascade34 lead + galv. lines
- Farley1 unknown
- Central61 lead + galv. lines
- Springville4 lead + galv. lines
- Epworthno lead reported
- Manchester304 lead + galv. lines
- Peostano lead reported
Check another water system
Questions
Does Monticello, IA have lead pipes?
Yes. Monticello Water Supply, which serves Monticello, reported 6 lead and 0 galvanized-requiring-replacement service lines, plus 440 of unknown material.
Who supplies water to Monticello?
EPA's service area maps place most of Monticello in Monticello Water Supply's service area (PWSID IA5343098).
How do I check whether my Monticello home has a lead service line?
Search your address on Monticello 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 Monticello 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 Monticello Water Supply whether your street is scheduled and whether it covers the private side.