Wasilla Water System, AK
Lead detected, under the action levels
Latest 90th-percentile lead: 3.1 ppb (monitoring period 2022-2024). 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
Wasilla Water System serves about 18,492 people through 1,833 service connections, which makes it a large system under EPA's size classes. It is owned by a local government (city, town, county or district) and draws groundwater, in Matanuska-Susitna Borough County, Alaska. EPA system ID: AK2224646; phone on file: 907-373-9044. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
Wasilla Water System's lead record
That is down 1.2 ppb from 4.3 ppb in the period ending 2021. The highest 90th-percentile result EPA holds for Wasilla Water System is 5 ppb across 6 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2024 | 3.1 ppb |
| 2021 | 4.3 ppb |
| 2020 | 3.39 ppb |
| 2019 | 2.2 ppb |
| 2018 | 5 ppb |
| 2018 | 3.1 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 Water System's 3.1 ppb sits at the 74th percentile in Alaska and the 83rd nationally (higher means more lead).
Neighbouring systems
78 other systems share Matanuska-Susitna Borough County; 13 of them have a higher latest lead result than Wasilla Water System. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| 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 |
| Meadow Brook Subdivision | 465 | 1.7 ppb |
Your move
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 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. Systems that went over once often dip back under; here is what that means.