Kronenwetter Water & Sewer Utility, WI
Lead detected, under the action levels
Latest 90th-percentile lead: 0.76 ppb (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. 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
Kronenwetter Water & Sewer Utility serves about 6,931 people through 1,792 service connections, which makes it a medium-sized system under EPA's size classes. It is owned by a local government (city, town, county or district) and draws groundwater, in Marathon County, Wisconsin. EPA system ID: WI7371700. Ask the utility on your bill for your address in their service line inventory.
Kronenwetter Water & Sewer Utility's lead record
That is down 1.94 ppb from 2.7 ppb in the period ending 2021. The highest 90th-percentile result EPA holds for Kronenwetter Water & Sewer Utility is 2.7 ppb across 3 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2023 | 0.76 ppb |
| 2021 | 2.7 ppb |
| 2017 | 2.6 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. Kronenwetter Water & Sewer Utility's 0.76 ppb sits at the 33rd percentile in Wisconsin and the 47th nationally (higher means more lead).
Other water systems in Marathon County
22 other systems share Marathon County; 16 of them have a higher latest lead result than Kronenwetter Water & Sewer Utility. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Wausau Waterworks | 39,994 | 5.8 ppb |
| Weston Municipal Utilities | 16,000 | 0.75 ppb |
| Rib Mountain Water Utility | 6,398 | 2.4 ppb |
| Mosinee Waterworks | 3,406 | 2.2 ppb |
| Rothschild Waterworks | 3,190 | 7.3 ppb |
| Abbotsford Waterworks | 2,502 | 3.5 ppb |
| Schofield Waterworks | 2,205 | 0 (not detected) |
| Spencer Waterworks | 1,848 | 0.8 ppb |
| Colby Waterworks | 1,829 | 0.95 ppb |
| Marathon City Waterworks | 1,695 | 0.36 ppb |
Your move
Test your own tap with a certified lab first-draw sample; Kronenwetter, 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 Kronenwetter Water & Sewer 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. The lead result guide covers how utilities pick the homes they sample. The action level is dropping - the 10 ppb rule from 2027.