Takotna Water System, AK
Exceeded the action level in the past
Latest 90th-percentile lead: 4.1 ppb (monitoring period 2021-2021). 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.
Who runs the water here
Takotna Water System serves about 70 people through 8 service connections, which makes it a very small system under EPA's size classes. It is owned by a Native American tribe and draws surface water, in Yukon-Koyukuk Census Area County, Alaska. EPA system ID: AK2280163; phone on file: 907-298-2212. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
Every lead result on file
That is down 1.66 ppb from 5.76 ppb in the period ending 2020. The highest 90th-percentile result EPA holds for Takotna Water System is 17.3 ppb across 7 monitoring periods, 1 of them over the 15 ppb action level.
| Period ending | 90th-percentile lead |
|---|---|
| 2021 | 4.1 ppb |
| 2020 | 5.76 ppb |
| 2019 | 17.3 ppb over 15 |
| 2018 | 3.4 ppb |
| 2017 | 7 ppb |
| 2016 | 4.05 ppb |
| 2016 | 0 (not detected) |
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. Takotna Water System's 4.1 ppb sits at the 80th percentile in Alaska and the 88th nationally (higher means more lead).
Nearby utilities
26 other systems share Yukon-Koyukuk Census Area County; 5 of them have a higher latest lead result than Takotna 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 |
Next steps for Takotna, AK
Test your own tap with a certified lab first-draw sample; Takotna, 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 Takotna Water System whether it covers that cost before hiring anyone - many utilities now do. Its latest copper 90th percentile is 1500 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. What a 90th-percentile result does and does not tell you: how to read a lead result. Why an old exceedance still matters: over the limit before, under it now.