Crowley Ranch Reserve, CO
Exceeded the action level in the past
Latest 90th-percentile lead: 0.3 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. The latest result is under the action level, but this system has gone over 15 ppb before. Lead comes from pipes, not the source water, so a home with a lead service line can still be exposed. Test your own tap.
Who runs the water here
Crowley Ranch Reserve serves about 49 people through 38 service connections, which makes it a very small system under EPA's size classes. It is privately owned and draws surface water, in Archuleta County, Colorado. EPA system ID: CO0104393; phone on file: 201-841-1776. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
Every lead result on file
Against the period ending 2024 (1.3 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Crowley Ranch Reserve is 20 ppb across 16 monitoring periods, 2 of them over the 15 ppb action level.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 0.3 ppb |
| 2024 | 1.3 ppb |
| 2023 | 0.4 ppb |
| 2023 | 0.8 ppb |
| 2022 | 0.9 ppb |
| 2022 | 0 (not detected) |
| 2021 | 0.3 ppb |
| 2021 | 0.8 ppb |
| 2020 | 0.9 ppb |
| 2020 | 16.7 ppb over 15 |
| 2019 | 4.1 ppb |
| 2019 | 2.9 ppb |
| 2018 | 4 ppb |
| 2018 | 20 ppb over 15 |
| 2017 | 13.3 ppb over 10 |
| 2017 | 4.1 ppb |
Where this result ranks
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. Crowley Ranch Reserve's 0.3 ppb sits at the 38th percentile in Colorado and the 41st nationally (higher means more lead).
Nearby utilities
6 other systems share Archuleta County; 5 of them have a higher latest lead result than Crowley Ranch Reserve. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Pagosa Area Wsd | 11,069 | 2.4 ppb |
| San Juan River Village Md | 877 | 3 ppb |
| Piedra Park Md | 850 | 3 ppb |
| Aspen Springs Md | 290 | - |
| Alpine Lakes Ranch Wc | 158 | 1.2 ppb |
| Navajo River Ranch Poa | 40 | 0.9 ppb |
What to do in your house
Test your own tap with a certified lab first-draw sample; Chromo, 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 Crowley Ranch Reserve whether it covers that cost before hiring anyone - many utilities now do. Its latest copper 90th percentile is 1670 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. More in what a past exceedance means today.