Adak Utilities, AK
Above the new 10 ppb level coming in 2027
Latest 90th-percentile lead: 13 ppb (monitoring period 2024-2024). The federal action level is 15 ppb today and drops to 10 ppb in Nov 2027; EPA's health goal is 0. Under the current 15 ppb rule this is not an exceedance, but it is above the 10 ppb action level that takes over in Nov 2027. Test your own tap; filter if your result shows lead.
About Adak Utilities
Adak Utilities serves about 325 people through 60 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 Aleutians West Census Area County, Alaska. EPA system ID: AK2260595; phone on file: 907-592-4500. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Lead results over time
That is up 5.8 ppb from 7.2 ppb in the period ending 2023. The highest 90th-percentile result EPA holds for Adak Utilities is 13 ppb across 5 monitoring periods, none of them over 15 ppb (3 over 10 ppb).
| Period ending | 90th-percentile lead |
|---|---|
| 2024 | 13 ppb over 10 |
| 2023 | 7.2 ppb |
| 2022 | 10.1 ppb over 10 |
| 2022 | 11.6 ppb over 10 |
| 2021 | 8.95 ppb |
Against other Alaska systems
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. Adak Utilities's 13 ppb sits at the 99th percentile in Alaska and the 98th nationally (higher means more lead).
Other water systems in Aleutians West Census Area County
5 other systems share Aleutians West Census Area County; 0 of them have a higher latest lead result than Adak Utilities. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Unalaska Water System | 9,400 | 3.05 ppb |
| Saint Paul Water System | 380 | 0.7 ppb |
| Saint George Water System | 65 | - |
| Atka | 50 | 3.7 ppb |
| Nikolski Village | 34 | - |
Next steps for Adak, AK
Test your own tap with a certified lab first-draw sample; Adak, 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 Adak Utilities 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. Why sampled homes are the worst-case ones is in the guide to reading the number. This system is in the band the 2027 10 ppb rule changes.