New Kasigluk Water System, AK
Exceeded the action level in the past
Latest 90th-percentile lead: 5.6 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 New Kasigluk Water System
New Kasigluk Water System serves about 276 people through 76 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 Bethel Census Area County, Alaska. EPA system ID: AK2272016; phone on file: 907-477-6415. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Lead results over time
That is down 2.2 ppb from 7.8 ppb in the period ending 2022. The highest 90th-percentile result EPA holds for New Kasigluk Water System is 22.9 ppb across 7 monitoring periods, 2 of them over the 15 ppb action level.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 5.6 ppb |
| 2022 | 7.8 ppb |
| 2020 | 5.4 ppb |
| 2019 | 6.98 ppb |
| 2018 | 22.9 ppb over 15 |
| 2018 | 12 ppb over 10 |
| 2016 | 19 ppb over 15 |
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. New Kasigluk Water System's 5.6 ppb sits at the 89th percentile in Alaska and the 92nd nationally (higher means more lead).
Nearby utilities
34 other systems share Bethel Census Area County; 9 of them have a higher latest lead result than New Kasigluk Water System. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Bethel Heights Water System | 2,228 | 3.57 ppb |
| Bethel-City S/D Water | 1,660 | 0 (not detected) |
| Kwethluk New Piped Water System | 760 | 2 ppb |
| Quinhagak Water System | 724 | 0.75 ppb |
| Toksook Bay Water System | 661 | 5.6 ppb |
| Kipnuk Water System | 639 | 1 ppb |
| Akiachak Water System | 627 | 6.2 ppb |
| Kongiganak Water System | 547 | 4.5 ppb |
| Chefornak Water System | 513 | 1 ppb |
| Nunapitchuk Water System | 496 | 4.6 ppb |
Next steps for Kasigluk, AK
Test your own tap with a certified lab first-draw sample; Kasigluk, 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 New Kasigluk 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. Why sampled homes are the worst-case ones is in the guide to reading the number. Why an old exceedance still matters: over the limit before, under it now.