Sheboygan Tn Waterworks, WI
Lead detected, under the action levels
Latest 90th-percentile lead: 2.9 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
Sheboygan Tn Waterworks serves about 4,596 people through 1,717 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 Sheboygan County, Wisconsin. EPA system ID: WI4600403. Ask the utility on your bill for your address in their service line inventory.
Lead results over time
Against the period ending 2020 (3 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Sheboygan Tn Waterworks is 3 ppb across 3 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2023 | 2.9 ppb |
| 2020 | 3 ppb |
| 2017 | 2.5 ppb |
How Sheboygan Tn 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. Sheboygan Tn Waterworks's 2.9 ppb sits at the 74th percentile in Wisconsin and the 80th nationally (higher means more lead).
Other water systems in Sheboygan County
16 other systems share Sheboygan County; 5 of them have a higher latest lead result than Sheboygan Tn Waterworks. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Sheboygan Water Utilities | 49,931 | 2.2 ppb |
| Plymouth Utilities | 8,964 | 6.17 ppb |
| Sheboygan Falls Utilities | 8,687 | 5.4 ppb |
| Oostburg Waterworks | 3,110 | 10.5 ppb |
| Kohler Waterworks | 2,271 | 0.82 ppb |
| Cedar Grove Waterworks | 2,213 | 8.9 ppb |
| Random Lake Waterworks | 1,594 | 0.53 ppb |
| Elkhart Lake Waterworks | 1,567 | 0.54 ppb |
| Kettle Moraine Correctional Institution | 1,544 | 0.34 ppb |
| Lakeland University | 1,200 | 3.22 ppb |
Next steps for Sheboygan, WI
Test your own tap with a certified lab first-draw sample; Sheboygan, 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 Sheboygan Tn 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.