Ten Sleep, Town Of, WY
Lead reported as not detected
Latest 90th-percentile lead: reported as 0 (not detected) (monitoring period 2025-2025). The federal action level is 15 ppb today and drops to 10 ppb in Nov 2027; EPA's health goal is 0. The latest 90th-percentile result was reported as 0 (not detected at the lab's limit). That says the sampled homes were low, not that your home has no lead service line. Check your utility's service line inventory for your address.
Ten Sleep, Town Of at a glance
Ten Sleep, Town Of serves about 400 people through 320 service connections, which makes it a very small system under EPA's size classes. It is owned by a local government (city, town, county or district) and draws groundwater, in Washakie County, Wyoming. EPA system ID: WY5600203; phone on file: 307-366-2265. They can tell you what your service line is made of and whether they pay to replace it.
Ten Sleep, Town Of's lead record
Against the period ending 2024 (0 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Ten Sleep, Town Of is 2 ppb across 5 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 0 (not detected) |
| 2024 | 0 (not detected) |
| 2023 | 0 (not detected) |
| 2019 | 0 (not detected) |
| 2016 | 2 ppb |
Where this result ranks
Of the 311 Wyoming systems with a lead result, the median latest reading is 1 ppb; 0 are over 15 ppb right now and 16 have gone over at some point. Ten Sleep, Town Of's reported as 0 (not detected) sits at the 22nd percentile in Wyoming and the 21st nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Nearby utilities
3 other systems share Washakie County; 3 of them have a higher latest lead result than Ten Sleep, Town Of. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Worland Utilities Commission | 4,787 | 3 ppb |
| Washakie Rural Water System | 990 | 1 ppb |
| Big Horn Regional Jpb | 25 | 1 ppb |
What to do in your house
Look up your address in Ten Sleep, Town Of's service line inventory. If it says lead, galvanized or unknown, test your tap. If your own line is lead, replacing the private side runs about $1,200-$12,300 (EPA average about $4,700). Ask Ten Sleep, Town Of whether it covers that cost before hiring anyone - many utilities now do.
These figures describe homes the utility sampled, not your tap. Only your service line record or a test of your own water answers the question for your house. The lead result guide covers how utilities pick the homes they sample. A zero today does not rule out a jump later - the rules are tightening in 2027.