C48/100
Dousman Tap Water Quality: Is It Safe to Drink? (2026 Report)
Serving 2,350 residents · Wisconsin
What's In Dousman's Tap Water?
1
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
2
Violations (last 5yr)
1
Unresolved
1
Health-Related
TIER 2Resolved
Treatment technique violation
When: October 17, 2024 – June 5, 2025Rule: Ground Water RuleEnforcement: Resolving — corrective action underway
TIER 3Unresolved
Disinfection byproduct treatment technique failure
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
DOUSMAN WATER UTILITY
Population Served
2,350
Water Source
Groundwater
System ID
WI2680197
Frequently Asked Questions About Dousman Water
Is Dousman tap water safe to drink?
Dousman, Wisconsin tap water receives a grade of C (48/100), which is considered fair. 0 contaminant(s) exceed EPA maximum contaminant levels and 37 violation(s) are on record. Residents should consider using an NSF-certified water filter to reduce contaminant exposure.
What contaminants are in Dousman's water?
Of the 1 contaminants tested in Dousman's water supply, the most notable include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 contaminant(s) exceed EPA health goals (MCLGs), which are non-enforceable targets set at levels with no known health risk.
Does Dousman have any water quality violations?
Yes, Dousman has 37 EPA violation(s) on record, with the most recent in 2024. Violation types include TT, Other, MR. 3 of these are health-based violations, which are the most serious category.
Do I need a water filter in Dousman?
Dousman water meets EPA standards, so a filter is not strictly necessary. However, some residents prefer the added security of a water filter. EPA health goals (MCLGs) are stricter than legal limits and are set at levels with zero expected health risk. 1 contaminant(s) exceed these stricter goals.
Where does Dousman's tap water come from?
Dousman's drinking water is sourced from groundwater and supplied by DOUSMAN WATER UTILITY. The system serves approximately 2,350 people. Groundwater is pumped from underground aquifers, which often provides natural filtration.
How often is Dousman'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. Dousman'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 Dousman's water compare to other cities in Wisconsin?
Dousman's water quality score of 48/100 earns a grade of C, which is considered fair. This is a below-average score that indicates room for improvement. Visit our Wisconsin state page to see how all cities in the state compare.
What should I do if I'm concerned about Dousman's water quality?
If you have concerns about Dousman'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 (DOUSMAN WATER UTILITY) 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.