Will O Wisp Metro District, CO
Lead detected, under the action levels
Latest 90th-percentile lead: 5.5 ppb (monitoring period 2023-2025). The federal action level is 15 ppb today and drops to 10 ppb in Nov 2027; EPA's health goal is 0. Lead was measured in sampled homes but the 90th percentile is under both action levels. EPA's health goal for lead is zero, so test your own tap if your home was built before 1986 or anyone in it is pregnant or a young child.
About Will O Wisp Metro District
Will O Wisp Metro District serves about 300 people through 119 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 Park County, Colorado. EPA system ID: CO0147200; phone on file: 720-580-3608. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
Will O Wisp Metro District's lead record
That is up 5.5 ppb from 0 ppb in the period ending 2021. The highest 90th-percentile result EPA holds for Will O Wisp Metro District is 11 ppb across 7 monitoring periods, none of them over 15 ppb (1 over 10 ppb).
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 5.5 ppb |
| 2021 | 0 (not detected) |
| 2020 | 11 ppb over 10 |
| 2019 | 5 ppb |
| 2018 | 10 ppb |
| 2017 | 4.5 ppb |
| 2016 | 5.5 ppb |
Against other Colorado systems
Of the 1,025 Colorado systems with a lead result, the median latest reading is 1 ppb; 2 are over 15 ppb right now and 71 have gone over at some point. Will O Wisp Metro District's 5.5 ppb sits at the 94th percentile in Colorado and the 92nd nationally (higher means more lead).
Neighbouring systems
9 other systems share Park County; 1 of them has a higher latest lead result than Will O Wisp Metro District. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Fairplay Town Of | 909 | 1 ppb |
| Bailey Wsd | 483 | 0 (not detected) |
| Alma Town Of | 460 | 2 ppb |
| Redhill Forest Pomwaca | 388 | 0 (not detected) |
| Spruce Hill Development | 277 | 2 ppb |
| Warm Springs Owners Mutual Wa | 250 | 9.5 ppb |
| River-Dale Ranch | 83 | 0 (not detected) |
| Eleven Mile Ranch Association | 72 | 2.5 ppb |
| Shawnee Wca | 50 | 0 (not detected) |
Your move
Test your own tap with a certified lab first-draw sample; Bailey, CO may offer free or low-cost kits through the utility. If your own line is lead, replacing the private side runs about $1,200-$12,300 (EPA average about $4,700). Ask Will O Wisp Metro District 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. Why sampled homes are the worst-case ones is in the guide to reading the number. The action level is dropping - the 10 ppb rule from 2027.