Wasilla West Subdivision, AK
Exceeded the action level in the past
Latest 90th-percentile lead: 1 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 Wasilla West Subdivision
Wasilla West Subdivision serves about 200 people through 66 service connections, which makes it a very small system under EPA's size classes. It is privately owned and draws groundwater, in Matanuska-Susitna Borough County, Alaska. EPA system ID: AK2221208; phone on file: 907-357-1770. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Lead results over time
That is down 8.3 ppb from 9.3 ppb in the period ending 2024. The highest 90th-percentile result EPA holds for Wasilla West Subdivision is 134 ppb across 6 monitoring periods, 1 of them over the 15 ppb action level.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 1 ppb |
| 2024 | 9.3 ppb |
| 2024 | 4.6 ppb |
| 2022 | 134 ppb over 15 |
| 2019 | 2.93 ppb |
| 2016 | 2.02 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. Wasilla West Subdivision's 1 ppb sits at the 38th percentile in Alaska and the 52nd nationally (higher means more lead).
Other water systems in Matanuska-Susitna Borough County
78 other systems share Matanuska-Susitna Borough County; 31 of them have a higher latest lead result than Wasilla West Subdivision. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Wasilla Water System | 18,492 | 3.1 ppb |
| Palmer Water System | 8,111 | 2.3 ppb |
| Unified Alaskan Utilities Settlers Bay | 2,733 | 0.72 ppb |
| Talkeetna Water System | 1,850 | 1.4 ppb |
| Valley Utilities Llc | 1,590 | 5 ppb |
| Country Field Water Co. | 1,166 | 0.54 ppb |
| Equestrian Acres | 950 | 1.6 ppb |
| Victoria Estates | 912 | 2.14 ppb |
| Trapper Creek Watering Point | 500 | 0 (not detected) |
| Unified Alaskan Utilities Midtown Est | 495 | 0.9 ppb |
Next steps for Wasilla, AK
Test your own tap with a certified lab first-draw sample; Wasilla, 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 Wasilla West Subdivision 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. The lead result guide covers how utilities pick the homes they sample. More in what a past exceedance means today.