Riverland Lot Owners Assoc, CO
Lead detected, under the action levels
Latest 90th-percentile lead: 0.5 ppb (monitoring period 2023-2025). 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.
Who runs the water here
Riverland Lot Owners Assoc serves about 368 people through 83 service connections, which makes it a very small system under EPA's size classes. It is privately owned and draws groundwater, in Gunnison County, Colorado. EPA system ID: CO0126677; phone on file: 970-275-1758. They can tell you what your service line is made of and whether they pay to replace it.
Riverland Lot Owners Assoc's lead record
That is down 14.5 ppb from 15 ppb in the period ending 2021. The highest 90th-percentile result EPA holds for Riverland Lot Owners Assoc is 15 ppb across 6 monitoring periods, none of them over 15 ppb (1 over 10 ppb).
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 0.5 ppb |
| 2021 | 15 ppb over 10 |
| 2020 | 5 ppb |
| 2019 | 0 (not detected) |
| 2018 | 1 ppb |
| 2017 | 0.5 ppb |
How Riverland Lot Owners Assoc compares
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. Riverland Lot Owners Assoc's 0.5 ppb sits at the 42nd percentile in Colorado and the 43rd nationally (higher means more lead).
Neighbouring systems
19 other systems share Gunnison County; 14 of them have a higher latest lead result than Riverland Lot Owners Assoc. 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 |
| Skyland Md | 335 | 2 ppb |
| Antelope Hills Assoc | 265 | 1 ppb |
| Meridian Lake Park | 250 | 3 ppb |
| Buckhorn Ranch Ws | 205 | 0.5 ppb |
What to do in your house
Test your own tap with a certified lab first-draw sample; Crested Butte, 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 Riverland Lot Owners Assoc 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. What a 90th-percentile result does and does not tell you: how to read a lead result. Systems that went over once often dip back under; here is what that means.