Somerset Domestic Wd, CO
Lead reported as not detected
Latest 90th-percentile lead: reported as 0 (not detected) (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. 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.
Who runs the water here
Somerset Domestic Wd serves about 100 people through 63 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 surface water, in Gunnison County, Colorado. EPA system ID: CO0126715; phone on file: 970-929-5211. They can tell you what your service line is made of and whether they pay to replace it.
Every lead result on file
Against the period ending 2025 (0 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Somerset Domestic Wd is 6.5 ppb across 17 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2026 | 0 (not detected) |
| 2025 | 0 (not detected) |
| 2025 | 2 ppb |
| 2024 | 1 ppb |
| 2024 | 6.5 ppb |
| 2023 | 1 ppb |
| 2023 | 1.4 ppb |
| 2022 | 0.9 ppb |
| 2022 | 5.3 ppb |
| 2021 | 2.8 ppb |
| 2021 | 1.5 ppb |
| 2020 | 2.5 ppb |
| 2020 | 6.2 ppb |
| 2019 | 2.3 ppb |
| 2018 | 1.1 ppb |
| 2017 | 4 ppb |
| 2016 | 2.1 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. Somerset Domestic Wd's reported as 0 (not detected) sits at the 7th percentile in Colorado and the 9th nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Other water systems in Gunnison County
19 other systems share Gunnison County; 16 of them have a higher latest lead result than Somerset Domestic Wd. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Gunnison City Of | 9,610 | 3 ppb |
| Mount Crested Butte Wsd | 3,296 | 1 ppb |
| Crested Butte Town Of | 2,440 | 6 ppb |
| Crested Butte South | 2,000 | 0 (not detected) |
| Gunnison County Wsd | 800 | 1.6 ppb |
| Evergreen Lake Company | 431 | 2 ppb |
| Riverland Lot Owners Assoc | 368 | 0.5 ppb |
| Skyland Md | 335 | 2 ppb |
| Antelope Hills Assoc | 265 | 1 ppb |
| Meridian Lake Park | 250 | 3 ppb |
Your move
Look up your address in Somerset Domestic Wd'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 Somerset Domestic Wd whether it covers that cost before hiring anyone - many utilities now do. Its latest copper 90th percentile is 2160 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. Why sampled homes are the worst-case ones is in the guide to reading the number. Small systems behave differently: why small systems go over more often.