Wyoming · population 2,748
Lead pipes in Thermopolis, WY
9 lead or galvanized lines to replace
Most of Thermopolis (population 2,748) gets its water from Town of Thermopolis. That system reported 9 lead and 0 galvanized-requiring-replacement service lines out of 1,531, with 1,085 more of unknown material.
0.6% of Town of Thermopolis's service lines are lead or galvanized requiring replacement, lower than the Wyoming average (1.6%) and lower than the national average (3.1%).
- Lead 0.6%
- Galvanized (replace) 0%
- Unknown 71%
- Non-lead 29%
Latest lead test for Town of Thermopolis (Jan 2023–Dec 2025): 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 Town of Thermopolis.
Water systems serving Thermopolis
| Water system | Lead | Galv. | Unknown | % lead |
|---|---|---|---|---|
| Town of ThermopolisMain system | 9 | 0 | 1,085 | 0.6% |
| Red Lane Domestic Water, INC.Also serves parts of the city | 0 | 0 | 28 | 0% |
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 Thermopolis
The counts above cover the whole water system. To see whether your line is lead, look up your address on Town of Thermopolis'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 Thermopolis, WY have lead pipes?
Yes. Town of Thermopolis, which serves Thermopolis, reported 9 lead and 0 galvanized-requiring-replacement service lines, plus 1,085 of unknown material.
Who supplies water to Thermopolis?
EPA's service area maps place most of Thermopolis in Town of Thermopolis's service area (PWSID WY5600056). Red Lane Domestic Water, INC. also serves parts of the city or nearby areas.
How do I check whether my Thermopolis home has a lead service line?
Search your address on Town of Thermopolis'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 Thermopolis 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 Town of Thermopolis whether your street is scheduled and whether it covers the private side.