Beaver Water System, AK
Exceeded the action level in the past
Latest 90th-percentile lead: 9 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.
About Beaver Water System
Beaver Water System serves about 80 people through 5 service connections, which makes it a very small system under EPA's size classes. It is owned by a Native American tribe and draws groundwater, in Yukon-Koyukuk Census Area County, Alaska. EPA system ID: AK2360230; phone on file: 907-628-6126. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
Beaver Water System's lead record
That is up 4.2 ppb from 4.8 ppb in the period ending 2024. The highest 90th-percentile result EPA holds for Beaver Water System is 38 ppb across 11 monitoring periods, 4 of them over the 15 ppb action level.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 9 ppb |
| 2024 | 4.8 ppb |
| 2024 | 1.6 ppb |
| 2022 | 38 ppb over 15 |
| 2020 | 3.08 ppb |
| 2019 | 15.6 ppb over 15 |
| 2018 | 15.5 ppb over 15 |
| 2018 | 15.5 ppb over 15 |
| 2018 | 5.65 ppb |
| 2017 | 11 ppb over 10 |
| 2016 | 6.55 ppb |
Where this result ranks
Of the 394 Alaska systems with a lead result, the median latest reading is 1.6 ppb; 3 are over 15 ppb right now and 53 have gone over at some point. Beaver Water System's 9 ppb sits at the 95th percentile in Alaska and the 96th nationally (higher means more lead).
Neighbouring systems
26 other systems share Yukon-Koyukuk Census Area County; 0 of them have a higher latest lead result than Beaver Water System. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Ft. Yukon Public Water System | 665 | 4.6 ppb |
| Galena Wtp1 - City | 490 | 3.6 ppb |
| Nenana Municipal Water | 486 | 0.7 ppb |
| Mcgrath Water System | 341 | 0.53 ppb |
| Huslia Public Water System | 323 | 2.7 ppb |
| Galena Wtp2 - Gila | 290 | 2.5 ppb |
| Too'Gha Inc - In Tanana | 271 | 1.6 ppb |
| Nulato River Well | 245 | 2.3 ppb |
| Ruby Water System | 215 | 9 ppb |
| Kaltag Public Water System | 214 | 2.1 ppb |
What to do in your house
Test your own tap with a certified lab first-draw sample; Beaver, AK 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 Beaver Water System 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.