Water Quality in Gays Mills, WI: 6 Violations — Grade C
Grade C · Score 59/100 · 1 water system · Updated 2026-05-03
Gays Mills's water has moderate compliance issues. Residents in affected areas should consider filtration.
Data: EPA Safe Drinking Water Information System (SDWIS) Last verified: 2026-05-03
Tracked under the EPA Safe Drinking Water program, Gays Mills, WI shows 6 water violations on file — findings that span multiple violation categories and are detailed system by system in the data grid further down the page.
Water Quality by ZIP Code in Gays Mills
Water quality varies across Gays Mills's 1 ZIP codes. Check your specific ZIP for detailed contaminant data.
| ZIP Code | Grade | Score | Violations | Health | |
|---|---|---|---|---|---|
| 54631 | C | 59 | 6 | 1 | View report → |
Water Quality Overview
Gays Mills, Wisconsin receives a water quality grade of C with an overall score of 59 out of 100, based on EPA compliance data from the Safe Drinking Water Information System (SDWIS).
The 1 water system serving Gays Mills have accumulated 6 EPA violations, including 1 health-based violation. These violations are tracked across 1 ZIP codes serving approximately 490 people.
What Grade C Means
A grade of C indicates moderate compliance issues. Gays Mills's water systems have some violations that warrant attention. While the water may still be safe for most people, residents in affected ZIP codes should consider additional testing or filtration.
Lead Levels
The average 90th percentile lead level across Gays Mills water systems is 0.0013 mg/L — within EPA limits. No ZIP codes exceed the EPA lead action level.
With 58% of homes built before 1986, Gays Mills has a higher-than-average risk of lead from older plumbing. Lead solder was banned in 1986, and homes built before this date may have lead in pipes, solder joints, or fixtures.
Radon Risk
Gays Mills is in EPA Radon Zone 1 (High risk). The EPA recommends all homes in Zone 1 areas be tested for radon. Radon is the second leading cause of lung cancer after smoking.
Water Systems Serving Gays Mills
Gays Mills is served by 1 community water system regulated under the Safe Drinking Water Act. These systems collectively serve approximately 490 people across 1 ZIP codes.
Each water system is identified by a Public Water System ID (PWSID) and is required to:
- Test for over 90 regulated contaminants on a regular schedule
- Report results to the EPA and state regulators
- Issue an annual Consumer Confidence Report (CCR) to all customers
- Take corrective action when violations occur
The EPA has taken 10 enforcement actions against water systems serving Gays Mills. Enforcement actions range from informal compliance assistance to formal orders and penalties.
How to Check Your Water in Gays Mills
Enter your ZIP code on ZipCheckup to see your specific water system data, including contaminant levels, violation history, and safety scores
Request your CCR — your water utility must provide an annual Consumer Confidence Report with detailed test results for all monitored contaminants
Get a home test — certified kits cost $20–$50 and test for lead, bacteria, and common contaminants. Professional lab tests ($150–$400) cover a broader panel
Consider filtration — NSF-certified filters can remove specific contaminants. Reverse osmosis removes the broadest range; activated carbon is effective for chlorine and many organics
Check for advisories — monitor your local utility website and local news for boil water advisories or system alerts
Contaminants Detected in Gays Mills Water Systems
The following contaminants have been detected or caused violations across Gays Mills's water systems:
| Contaminant | Category | MCL | Violations | ZIPs Affected | Health-Based |
|---|---|---|---|---|---|
| Surface Water Treatment Rule | Treatment Technique | N/A | 2 | 1 | No |
| Lead and Copper Rule | Treatment Technique | N/A | 1 | 1 | No |
| Stage 1 DBP Rule | Treatment Technique | N/A | 1 | 1 | No |
| Stage 2 DBP Rule | Treatment Technique | N/A | 1 | 1 | No |
MCL = Maximum Contaminant Level (EPA enforceable standard). Health-based violations indicate levels that may pose direct health risks.
EPA Enforcement History
The EPA and state regulators have taken 10 enforcement actions against water systems serving Gays Mills. Recent actions:
| Date | Action Type |
|---|---|
| 2024-07-26 | State Order Extension |
| 2024-07-22 | State Informal Action |
| 2024-01-30 | State Order Extension |
| 2024-01-11 | State Informal Action |
| 2023-04-14 | State Informal Action |
| 2023-04-14 | State Order Extension |
| 2023-04-10 | State Informal Action |
| 2023-02-23 | State Informal Action |
| 2023-02-06 | State Filed Judgment |
| 2023-01-31 | State Order Extension |
Enforcement actions range from informal compliance assistance to formal orders and penalties. The most recent action was on 2024-07-26.
Gays Mills vs. Nearby Wisconsin Cities
How Gays Mills's water quality compares to similar cities in Wisconsin:
| City | Grade | Violations | Systems | Population |
|---|---|---|---|---|
| Gays Mills | C | 6 | 1 | 490 |
| Wilton | B | 2 | 1 | 490 |
| Arpin | D | 0 | 1 | 491 |
| Vesper | C | 1 | 1 | 491 |
Common Questions About Gays Mills Water
These are the most common questions residents search for about water quality in Gays Mills, Wisconsin:
Is Gays Mills water hard or soft? Water hardness varies by source. Gays Mills's 1 water system uses a single source. Check your ZIP code report for specific hardness data.
Can I drink Gays Mills tap water? Gays Mills's water receives a grade of C (59/100). There are 1 health-based violations — consider filtration.
What is the best water filter for Gays Mills? A NSF/ANSI 53-certified filter for lead removal is a good general choice. See our Water Filter Matcher for personalized recommendations.
Gays Mills vs. Wisconsin Average
Understanding how Gays Mills compares to the broader Wisconsin average helps contextualize your local water quality. Factors like water source, treatment methods, and infrastructure age all contribute to differences between cities in the same state.
To see how individual neighborhoods compare, check the ZIP code reports below — water quality can vary significantly even within Gays Mills.
ZIP Codes in Gays Mills
Gays Mills spans 1 ZIP code. The ZIP with the lowest water quality score is 54631. Each ZIP code has its own water quality profile based on the specific water system serving that area. Check each ZIP code for detailed contaminant data, violation history, and system information.
Data Sources
- Water quality: EPA Safe Drinking Water Information System (SDWIS)
- Lead/copper: EPA Lead and Copper Rule sampling data
- Radon: EPA Map of Radon Zones
- Enforcement: EPA ECHO database
- Filter recommendations: NSF/ANSI certified products
Updated daily.