Minto Community Water System, AK
Lead detected, under the action levels
Latest 90th-percentile lead: 0.34 ppb (monitoring period 2021-2023). The federal action level is 15 ppb today and drops to 10 ppb in Nov 2027; EPA's health goal is 0. Lead was measured in sampled homes but the 90th percentile is under both action levels. EPA's health goal for lead is zero, so test your own tap if your home was built before 1986 or anyone in it is pregnant or a young child.
Who runs the water here
Minto Community Water System serves about 205 people through 80 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: AK2300159; phone on file: 907-798-7112. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
Minto Community Water System's lead record
Against the period ending 2020 (1.02 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Minto Community Water System is 1.48 ppb across 3 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2023 | 0.34 ppb |
| 2020 | 1.02 ppb |
| 2017 | 1.48 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. Minto Community Water System's 0.34 ppb sits at the 23rd percentile in Alaska and the 42nd nationally (higher means more lead).
Nearby utilities
26 other systems share Yukon-Koyukuk Census Area County; 24 of them have a higher latest lead result than Minto Community 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; Minto, 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 Minto Community 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. Size matters more than most people expect: small vs large water systems.