Cleveland Waterworks, WI
Exceeded the action level in the past
Latest 90th-percentile lead: 6.3 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. The latest result is under the action level, but this system has gone over 15 ppb before. Lead comes from pipes, not the source water, so a home with a lead service line can still be exposed. Test your own tap.
Cleveland Waterworks at a glance
Cleveland Waterworks serves about 1,524 people through 621 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 Manitowoc County, Wisconsin. EPA system ID: WI4360426. Ask the utility on your bill for your address in their service line inventory.
Every lead result on file
That is up 4.9 ppb from 1.4 ppb in the period ending 2023. The highest 90th-percentile result EPA holds for Cleveland Waterworks is 16 ppb across 6 monitoring periods, 1 of them over the 15 ppb action level.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 6.3 ppb |
| 2023 | 1.4 ppb |
| 2021 | 4.7 ppb |
| 2021 | 5.3 ppb |
| 2020 | 16 ppb over 15 |
| 2017 | 12 ppb over 10 |
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. Cleveland Waterworks's 6.3 ppb sits at the 92nd percentile in Wisconsin and the 94th nationally (higher means more lead).
Neighbouring systems
13 other systems share Manitowoc County; 3 of them have a higher latest lead result than Cleveland Waterworks. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Manitowoc Waterworks | 34,500 | 7.7 ppb |
| Two Rivers Waterworks | 11,270 | 13 ppb |
| Kiel Waterworks | 3,932 | 0.77 ppb |
| Mishicot Waterworks | 1,432 | 1.9 ppb |
| Reedsville Waterworks | 1,200 | 2.6 ppb |
| Valders Waterworks | 954 | 6.8 ppb |
| Whitelaw Waterworks | 757 | 3.1 ppb |
| St Nazianz Waterworks | 705 | 1.4 ppb |
| Maribel Waterworks | 355 | 0.99 ppb |
| Kellnersville Waterworks | 301 | 3.5 ppb |
What to do in your house
Test your own tap with a certified lab first-draw sample; Cleveland, 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 Cleveland 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. Why an old exceedance still matters: over the limit before, under it now.