Manawa Waterworks, WI
Lead detected, under the action levels
Latest 90th-percentile lead: 3.6 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.
About Manawa Waterworks
Manawa Waterworks serves about 1,300 people through 481 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 Waupaca County, Wisconsin. EPA system ID: WI4690345. Ask the utility on your bill for your address in their service line inventory.
Manawa Waterworks's lead record
That is down 4 ppb from 7.6 ppb in the period ending 2020. The highest 90th-percentile result EPA holds for Manawa Waterworks is 14 ppb across 3 monitoring periods, none of them over 15 ppb (1 over 10 ppb).
| Period ending | 90th-percentile lead |
|---|---|
| 2023 | 3.6 ppb |
| 2020 | 7.6 ppb |
| 2017 | 14 ppb over 10 |
How Manawa Waterworks compares
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. Manawa Waterworks's 3.6 ppb sits at the 81st percentile in Wisconsin and the 86th nationally (higher means more lead).
Neighbouring systems
10 other systems share Waupaca County; 4 of them have a higher latest lead result than Manawa Waterworks. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| New London Waterworks | 7,187 | 7.9 ppb |
| Waupaca Waterworks | 6,062 | 3.6 ppb |
| Clintonville Utilities | 4,635 | 3.5 ppb |
| Weyauwega Waterworks | 1,820 | 6 ppb |
| Marion Waterworks | 1,293 | 2.8 ppb |
| Iola Waterworks | 1,249 | 12 ppb |
| Wisconsin Veterans Home | 950 | 2 ppb |
| Embarrass Waterworks | 346 | 6.4 ppb |
| Oakwood Estates Mhp | 110 | 1.75 ppb |
| Rawhide Youth Homes | 92 | 0 (not detected) |
Next steps for Manawa, WI
Test your own tap with a certified lab first-draw sample; Manawa, 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 Manawa Waterworks 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.