San Bernardo Hoa, CO
Lead detected, under the action levels
Latest 90th-percentile lead: 0.9 ppb (monitoring period 2026-2026). 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.
San Bernardo Hoa at a glance
San Bernardo Hoa serves about 132 people through 32 service connections, which makes it a very small system under EPA's size classes. It is privately owned and draws groundwater, in San Miguel County, Colorado. EPA system ID: CO0157701; phone on file: 970-729-3434. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Every lead result on file
That is down 1.3 ppb from 2.2 ppb in the period ending 2025. The highest 90th-percentile result EPA holds for San Bernardo Hoa is 2.2 ppb across 11 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2026 | 0.9 ppb |
| 2025 | 2.2 ppb |
| 2025 | 0.7 ppb |
| 2024 | 1.5 ppb |
| 2024 | 0.9 ppb |
| 2023 | 1.4 ppb |
| 2023 | 0.9 ppb |
| 2022 | 1 ppb |
| 2022 | 1 ppb |
| 2021 | 0.6 ppb |
| 2021 | 0.9 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. San Bernardo Hoa's 0.9 ppb sits at the 46th percentile in Colorado and the 49th nationally (higher means more lead).
Nearby utilities
11 other systems share San Miguel County; 8 of them have a higher latest lead result than San Bernardo Hoa. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Mountain Village Town Of | 9,700 | 1 ppb |
| Telluride Town Of | 7,900 | 1 ppb |
| Norwood Water Commission | 1,700 | 2 ppb |
| Aldasoro Ranch Hoc | 412 | 4.2 ppb |
| Ilium Valley Ws | 322 | 1 ppb |
| Wilson Mesa | 290 | 0 (not detected) |
| Ophir Town Of | 193 | 1.5 ppb |
| Elk Run Homeowners Corporation | 125 | 1 ppb |
| Last Dollar Pud | 96 | 11.9 ppb |
| Sawpit Town Of | 59 | 0 (not detected) |
Your move
Test your own tap with a certified lab first-draw sample; Telluride, 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 San Bernardo Hoa whether it covers that cost before hiring anyone - many utilities now do. Its latest copper 90th percentile is 1410 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. The action level is dropping - the 10 ppb rule from 2027.