Moraine Park Ws, CO
Exceeded the action level in the past
Latest 90th-percentile lead: 1 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. 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.
About Moraine Park Ws
Moraine Park Ws serves about 100 people through 44 service connections, which makes it a very small system under EPA's size classes. It is privately owned and draws groundwater, in Grand County, Colorado. EPA system ID: CO0125518. Ask the utility on your bill for your address in their service line inventory.
Lead results over time
Against the period ending 2025 (1 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Moraine Park Ws is 258.5 ppb across 20 monitoring periods, 3 of them over the 15 ppb action level.
| Period ending | 90th-percentile lead |
|---|---|
| 2026 | 1 ppb |
| 2025 | 1 ppb |
| 2025 | 0 (not detected) |
| 2024 | 0.5 ppb |
| 2024 | 0.5 ppb |
| 2023 | 1 ppb |
| 2023 | 0.5 ppb |
| 2022 | 2 ppb |
| 2022 | 13 ppb over 10 |
| 2021 | 2 ppb |
| 2021 | 2 ppb |
| 2020 | 2 ppb |
| 2020 | 2.5 ppb |
| 2019 | 3 ppb |
| 2019 | 4.5 ppb |
| 2018 | 6 ppb |
| 2018 | 8 ppb |
| 2017 | 16.5 ppb over 15 |
| 2017 | 18 ppb over 15 |
| 2016 | 258.5 ppb over 15 |
How Moraine Park Ws 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. Moraine Park Ws's 1 ppb sits at the 49th percentile in Colorado and the 51st nationally (higher means more lead).
Other water systems in Grand County
23 other systems share Grand County; 13 of them have a higher latest lead result than Moraine Park Ws. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Winter Park Wsd | 6,635 | 3 ppb |
| Grand County Water No 1 | 5,400 | 1 ppb |
| Winter Park Ranch Wsd | 3,250 | 2 ppb |
| Granby Town Of South Service Area | 2,300 | 2 ppb |
| Fraser Town Of | 2,150 | 6.8 ppb |
| Grand Lake Town Of | 2,035 | 1.8 ppb |
| Granby Town Of North Service Area | 2,025 | 8 ppb |
| Kremmling Town Of | 1,859 | 0 (not detected) |
| Hot Sulphur Springs Town Of | 687 | 2 ppb |
| Ymca Snow Mtn Ranch | 578 | 0 (not detected) |
Next steps for Granby, CO
Test your own tap with a certified lab first-draw sample; Granby, 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 Moraine Park Ws whether it covers that cost before hiring anyone - many utilities now do. Its latest copper 90th percentile is 1350 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. More in what a past exceedance means today.