West Ranch Subd, 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
West Ranch Subd serves about 28 people through 10 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 Pitkin County, Colorado. EPA system ID: CO0149613; phone on file: 970-945-5700. They can tell you what your service line is made of and whether they pay to replace it.
West Ranch Subd's lead record
Against the period ending 2025 (0 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for West Ranch Subd is 1.5 ppb across 20 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2026 | 0 (not detected) |
| 2025 | 0 (not detected) |
| 2025 | 0 (not detected) |
| 2024 | 0 (not detected) |
| 2024 | 0 (not detected) |
| 2023 | 0 (not detected) |
| 2023 | 0 (not detected) |
| 2022 | 1.5 ppb |
| 2022 | 0 (not detected) |
| 2021 | 0 (not detected) |
| 2021 | 0 (not detected) |
| 2020 | 1 ppb |
| 2020 | 0 (not detected) |
| 2019 | 0 (not detected) |
| 2019 | 0 (not detected) |
| 2018 | 0 (not detected) |
| 2018 | 0 (not detected) |
| 2017 | 1.5 ppb |
| 2017 | 1 ppb |
| 2016 | 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. West Ranch Subd's reported as 0 (not detected) sits at the 0th percentile in Colorado and the 1st nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Neighbouring systems
25 other systems share Pitkin County; 20 of them have a higher latest lead result than West Ranch Subd. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Aspen City Of | 31,100 | 1 ppb |
| Snowmass Village Wsd | 6,353 | 0 (not detected) |
| Brush Creek Wd | 516 | 1.1 ppb |
| Wj Metro District | 324 | 0 (not detected) |
| Lazy Glen Hoa | 322 | 0 (not detected) |
| Aspen Village Md | 300 | 3 ppb |
| Starwood Metropolitan District | 300 | 0.5 ppb |
| Holland Hills Md | 225 | 1 ppb |
| Woody Creek Metropolitan District | 220 | 0.5 ppb |
| Buttermilk Md | 200 | 0.3 ppb |
Next steps for Glenwood Springs, CO
Look up your address in West Ranch Subd'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 West Ranch Subd whether it covers that cost before hiring anyone - many utilities now do. Its latest copper 90th percentile is 1970 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.