Longs Peak Wd, CO
Exceeded the action level in the past
Latest 90th-percentile lead: 2 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.
Longs Peak Wd at a glance
Longs Peak Wd serves about 3,200 people through 1,216 service connections, which makes it a small system under EPA's size classes. It is owned by a local government (city, town, county or district) and draws surface water, in Boulder County, Colorado. EPA system ID: CO0107486; phone on file: 303-776-3847. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
Lead results over time
Against the period ending 2025 (2 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Longs Peak Wd is 18 ppb across 19 monitoring periods, 1 of them over the 15 ppb action level.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 2 ppb |
| 2025 | 2 ppb |
| 2024 | 2 ppb |
| 2024 | 2 ppb |
| 2023 | 2 ppb |
| 2022 | 1 ppb |
| 2022 | 3 ppb |
| 2021 | 1 ppb |
| 2021 | 1 ppb |
| 2020 | 2 ppb |
| 2020 | 0 (not detected) |
| 2019 | 0 (not detected) |
| 2018 | 0 (not detected) |
| 2018 | 1 ppb |
| 2017 | 1 ppb |
| 2017 | 0 (not detected) |
| 2016 | 1 ppb |
| 2016 | 18 ppb over 15 |
| 2016 | 4 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. Longs Peak Wd's 2 ppb sits at the 74th percentile in Colorado and the 72nd nationally (higher means more lead).
Neighbouring systems
39 other systems share Boulder County; 5 of them have a higher latest lead result than Longs Peak Wd. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Boulder City Of | 166,080 | 2 ppb |
| Longmont City Of | 104,178 | 1.6 ppb |
| Erie Town Of | 47,444 | 2.6 ppb |
| Lafayette City Of | 28,700 | 2 ppb |
| Louisville City Of | 20,975 | 0 (not detected) |
| Left Hand Wd | 20,280 | 1 ppb |
| Superior Md No 1 | 17,900 | 0 (not detected) |
| Lyons Town Of | 2,990 | 0 (not detected) |
| Nederland Town Of | 2,406 | 1 ppb |
| Boulder Meadows Mhp | 1,657 | 0 (not detected) |
What to do in your house
Test your own tap with a certified lab first-draw sample; Longmont, 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 Longs Peak Wd 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. More in what a past exceedance means today.