Antonito Town Of, CO
Lead detected, under the action levels
Latest 90th-percentile lead: 5 ppb (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. 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.
Antonito Town Of at a glance
Antonito Town Of serves about 981 people through 435 service connections, which makes it a small system under EPA's size classes. It is owned by a local government (city, town, county or district) and draws surface water, in Conejos County, Colorado. EPA system ID: CO0111100; phone on file: 719-298-6114. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
Lead results over time
That is up 2 ppb from 3 ppb in the period ending 2024. The highest 90th-percentile result EPA holds for Antonito Town Of is 6 ppb across 13 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 5 ppb |
| 2024 | 3 ppb |
| 2023 | 0 (not detected) |
| 2022 | 0 (not detected) |
| 2021 | 1 ppb |
| 2021 | 1 ppb |
| 2020 | 0 (not detected) |
| 2020 | 1 ppb |
| 2019 | 0 (not detected) |
| 2019 | 0 (not detected) |
| 2018 | 6 ppb |
| 2018 | 5 ppb |
| 2017 | 0 (not detected) |
How Antonito Town Of compares
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. Antonito Town Of's 5 ppb sits at the 93rd percentile in Colorado and the 91st nationally (higher means more lead).
Neighbouring systems
7 other systems share Conejos County; 0 of them have a higher latest lead result than Antonito Town Of. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Manassa Town Of | 976 | 0 (not detected) |
| Sanford Town Of | 850 | 0 (not detected) |
| La Jara Town Of | 825 | 0 (not detected) |
| Romeo Town Of | 365 | 0 (not detected) |
| Capulin Wd | 250 | 0 (not detected) |
| Bear Creek Loa | 190 | 2.4 ppb |
| Guadalupe Wa | 42 | 1 ppb |
Next steps for Antonito, CO
Test your own tap with a certified lab first-draw sample; Antonito, 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 Antonito Town Of whether it covers that cost before hiring anyone - many utilities now do. Its latest copper 90th percentile is 4830 ppb (copper action level 1,300 ppb).
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. What a 90th-percentile result does and does not tell you: how to read a lead result. Size matters more than most people expect: small vs large water systems.