A83/100
Sheboygan Tap Water Quality: Is It Safe to Drink? (2026 Report)
Serving 54,527 residents · Wisconsin
What's In Sheboygan's Tap Water?
69
Contaminants Tested
0
Exceed EPA Limits
1
Above EPA Goals
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Lead (90th percentile) | 0.002 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
1
Violation (last 5yr)
0
Unresolved
0
Health-Related
TIER 3Resolved
Failed Level 2 Assessment under Revised Total Coliform Rule
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: January 1, 2024 – March 31, 2024Rule: Stage 2 DBPREnforcement: Resolving — corrective action underway
Understanding violation severity
Tier 1Urgent health risk. Utility must notify all customers within 24 hours.Tier 2Important health or treatment issue. Customers notified within 30 days.Tier 3Administrative or monitoring issue. Reported in the annual water quality report.
Source: EPA Safe Drinking Water Information System (SDWIS) · Updated quarterly
Water Utility Details
SHEBOYGAN WATER UTILITIES
Population Served
49,931
Water Source
Surface Water
System ID
WI4600354
SHEBOYGAN TN WATERWORKS
Population Served
4,596
Water Source
Groundwater
System ID
WI4600403
Frequently Asked Questions About Sheboygan Water
Is Sheboygan tap water safe to drink?
Sheboygan, Wisconsin tap water receives a grade of A (83/100), which is considered excellent. Out of 69 contaminants tested, 1 exceed EPA maximum contaminant levels (MCLs) and 2 exceed health guidelines (MCLGs). While the water meets federal standards, some residents may still choose to use a filter for additional peace of mind.
What contaminants are in Sheboygan's water?
Of the 69 contaminants tested in Sheboygan's water supply, the most notable include PFHxS, Lead (90th percentile). 1 contaminant(s) exceed EPA legal limits (MCLs). 2 contaminant(s) exceed EPA health goals (MCLGs), which are non-enforceable targets set at levels with no known health risk.
Does Sheboygan have any water quality violations?
Yes, Sheboygan has 16 EPA violation(s) on record, with the most recent in 2024. Violation types include MR, Other, MCL. 1 of these are health-based violations, which are the most serious category.
Do I need a water filter in Sheboygan?
Based on EPA data, using a water filter in Sheboygan is recommended. 1 contaminant(s) exceed legal limits. An NSF-certified filter — such as a reverse osmosis or activated carbon system — can effectively reduce many common contaminants. Choose a filter certified to remove the specific contaminants found in your area.
Where does Sheboygan's tap water come from?
Sheboygan's drinking water is sourced from surface water and supplied by SHEBOYGAN WATER UTILITIES and 1 other water system(s). The system serves approximately 54,527 people. Surface water sources include rivers, lakes, and reservoirs.
How often is Sheboygan's water tested?
Under the Safe Drinking Water Act (SDWA), water utilities are required to regularly test for over 90 contaminants. Testing frequency varies by contaminant — some are tested monthly, others quarterly or annually. Sheboygan's water systems must report results to the EPA and publish an annual Consumer Confidence Report (CCR). The data on this page reflects the latest available EPA testing data.
How does Sheboygan's water compare to other cities in Wisconsin?
Sheboygan's water quality score of 83/100 earns a grade of A, which is considered excellent. This places Sheboygan among the better-performing water systems in Wisconsin. Visit our Wisconsin state page to see how all cities in the state compare.
What should I do if I'm concerned about Sheboygan's water quality?
If you have concerns about Sheboygan's tap water, consider these steps: (1) Request your utility's annual Consumer Confidence Report for detailed local data. (2) Get your water independently tested through a state-certified laboratory. (3) Consider an NSF-certified water filter rated for the contaminants found in your area. (4) Contact your water utility (SHEBOYGAN WATER UTILITIES) with specific questions. (5) Report water quality issues to your state drinking water program or the EPA Safe Drinking Water Hotline at 800-426-4791.