Hayward Water Utility, WI
Lead reported as not detected
Latest 90th-percentile lead: reported as 0 (not detected) (monitoring period 2023-2023). The federal action level is 15 ppb today and drops to 10 ppb in Nov 2027; EPA's health goal is 0. The latest 90th-percentile result was reported as 0 (not detected at the lab's limit). That says the sampled homes were low, not that your home has no lead service line. Check your utility's service line inventory for your address.
Who runs the water here
Hayward Water Utility serves about 2,552 people through 945 service connections, which makes it a small system under EPA's size classes. It is owned by a local government (city, town, county or district) and draws groundwater, in Sawyer County, Wisconsin. EPA system ID: WI8580532. Ask the utility on your bill for your address in their service line inventory.
Lead results over time
Against the period ending 2020 (0.22 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Hayward Water Utility is 0.8 ppb across 3 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2023 | 0 (not detected) |
| 2020 | 0.22 ppb |
| 2017 | 0.8 ppb |
Where this result ranks
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. Hayward Water Utility's reported as 0 (not detected) sits at the 16th percentile in Wisconsin and the 32nd nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Neighbouring systems
9 other systems share Sawyer County; 6 of them have a higher latest lead result than Hayward Water Utility. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| 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 |
| Tamarack Health Hayward Medical Center | 85 | 0.13 ppb |
| Luedtkes Mobile Home Park | 50 | 0.15 ppb |
| Big Musky Resort | 25 | 4 ppb |
What to do in your house
Look up your address in Hayward Water Utility's service line inventory. If it says lead, galvanized or unknown, test your tap. If your own line is lead, replacing the private side runs about $1,200-$12,300 (EPA average about $4,700). Ask Hayward Water Utility 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. Small systems behave differently: why small systems go over more often.