Hidden Lake Community, CO
Lead detected, under the action levels
Latest 90th-percentile lead: 1.8 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.
About Hidden Lake Community
Hidden Lake Community serves about 83 people through 33 service connections, which makes it a very small system under EPA's size classes. It is privately owned and draws surface water, in Montrose County, Colorado. EPA system ID: CO0143337; phone on file: 970-209-4581. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Hidden Lake Community's lead record
That is down 5.2 ppb from 7 ppb in the period ending 2025. The highest 90th-percentile result EPA holds for Hidden Lake Community is 8 ppb across 4 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2026 | 1.8 ppb |
| 2025 | 7 ppb |
| 2024 | 8 ppb |
| 2023 | 1.6 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. Hidden Lake Community's 1.8 ppb sits at the 66th percentile in Colorado and the 67th nationally (higher means more lead).
Nearby utilities
20 other systems share Montrose County; 5 of them have a higher latest lead result than Hidden Lake Community. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Tri County Wcd | 20,490 | - |
| Montrose City Of | 19,305 | - |
| Menoken Wd | 4,500 | - |
| Chipeta Wd | 3,802 | - |
| Olathe Town Of | 3,015 | - |
| Northbrook Villas Mhc | 1,052 | 0 (not detected) |
| Nucla Town Of | 875 | 1.1 ppb |
| Naturita Town Of | 585 | 1.3 ppb |
| Cimarron Creek | 560 | 0.9 ppb |
| River Meadows The | 490 | 3.7 ppb |
Your move
Test your own tap with a certified lab first-draw sample; Montrose, 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 Hidden Lake Community whether it covers that cost before hiring anyone - many utilities now do.
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. Size matters more than most people expect: small vs large water systems.