Tamarack Health Hayward Medical Center, WI
Lead detected, under the action levels
Latest 90th-percentile lead: 0.13 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. 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.
Tamarack Health Hayward Medical Center at a glance
Tamarack Health Hayward Medical Center serves about 85 people through 6 service connections, which makes it a very small system under EPA's size classes. It is privately owned and draws groundwater, in Sawyer County, Wisconsin. EPA system ID: WI8581004. Ask the utility on your bill for your address in their service line inventory.
Every lead result on file
Against the period ending 2022 (0 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Tamarack Health Hayward Medical Center is 2.29 ppb across 4 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 0.13 ppb |
| 2022 | 0 (not detected) |
| 2019 | 1 ppb |
| 2016 | 2.29 ppb |
Against other Wisconsin systems
Of the 947 Wisconsin systems with a lead result, the median latest reading is 1.33 ppb; 6 are over 15 ppb right now and 71 have gone over at some point. Tamarack Health Hayward Medical Center's 0.13 ppb sits at the 17th percentile in Wisconsin and the 41st nationally (higher means more lead).
Nearby utilities
9 other systems share Sawyer County; 5 of them have a higher latest lead result than Tamarack Health Hayward Medical Center. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Hayward Water Utility | 2,552 | 0 (not detected) |
| Winter Waterworks | 344 | 5.2 ppb |
| Radisson Waterworks | 241 | 0 (not detected) |
| Exeland Waterworks | 196 | 4.5 ppb |
| Stone Lake Sanitary District | 175 | 0 (not detected) |
| Flambeau Correctional Center | 120 | 0 (not detected) |
| S And J Wild River Mhp | 90 | 1.75 ppb |
| Luedtkes Mobile Home Park | 50 | 0.15 ppb |
| Big Musky Resort | 25 | 4 ppb |
Your move
Test your own tap with a certified lab first-draw sample; Hayward, WI 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 Tamarack Health Hayward Medical Center 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.