Water Quality in Eau Claire, MI: 5 Violations — Grade C
Grade C · Score 68/100 · 1 water system · Updated 2026-05-03
Eau Claire'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
The compliance record maintained by the EPA for Eau Claire, MI documents 5 water violations — each tied to a specific public water system and assigned a violation category in the federal Safe Drinking Water dataset.
Water Quality by ZIP Code in Eau Claire
Water quality varies across Eau Claire's 1 ZIP codes. Check your specific ZIP for detailed contaminant data.
| ZIP Code | Grade | Score | Violations | Health | |
|---|---|---|---|---|---|
| 49111 | C | 68 | 5 | 0 | View report → |
Water Quality Overview
Eau Claire, Michigan receives a water quality grade of C with an overall score of 68 out of 100, based on EPA compliance data from the Safe Drinking Water Information System (SDWIS).
The 1 water system serving Eau Claire have accumulated 5 EPA violations (all monitoring/reporting type). These violations are tracked across 1 ZIP codes serving approximately 610 people.
What Grade C Means
A grade of C indicates moderate compliance issues. Eau Claire'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 Eau Claire water systems is 0.0710 mg/L — this exceeds the EPA action level of 0.015 mg/L. 1 ZIP code exceed the EPA lead action level.
With 73% of homes built before 1986, Eau Claire 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.
Water Systems Serving Eau Claire
Eau Claire is served by 1 community water system regulated under the Safe Drinking Water Act. These systems collectively serve approximately 610 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 Eau Claire. Enforcement actions range from informal compliance assistance to formal orders and penalties.
How to Check Your Water in Eau Claire
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 Eau Claire Water Systems
The following contaminants have been detected or caused violations across Eau Claire's water systems:
| Contaminant | Category | MCL | Violations | ZIPs Affected | Health-Based |
|---|---|---|---|---|---|
| Stage 1 DBP Rule | Treatment Technique | N/A | 3 | 1 | No |
| Surface Water Treatment 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 Eau Claire. Recent actions:
| Date | Action Type |
|---|---|
| 2024-11-13 | State Informal Action |
| 2023-12-06 | State Informal Action |
| 2023-12-06 | State Informal Enforcement |
| 2023-11-29 | State Order Extension |
| 2023-11-14 | State Order Extension |
| 2023-11-02 | State Informal Action |
| 2022-12-17 | State Order Extension |
| 2021-12-17 | State Order Extension |
| 2021-08-27 | State Informal Action |
| 2021-08-27 | State Informal Enforcement |
Enforcement actions range from informal compliance assistance to formal orders and penalties. The most recent action was on 2024-11-13.
Eau Claire vs. Nearby Michigan Cities
How Eau Claire's water quality compares to similar cities in Michigan:
| City | Grade | Violations | Systems | Population |
|---|---|---|---|---|
| Eau Claire | C | 5 | 1 | 610 |
| New Lothrop | B | 2 | 1 | 610 |
| Britton | D | 2 | 1 | 611 |
| Hamburg | D | 0 | 1 | 607 |
Common Questions About Eau Claire Water
These are the most common questions residents search for about water quality in Eau Claire, Michigan:
Is Eau Claire water hard or soft? Water hardness varies by source. Eau Claire's 1 water system uses a single source. Check your ZIP code report for specific hardness data.
Can I drink Eau Claire tap water? Eau Claire's water receives a grade of C (68/100). No health-based violations have been recorded, but home testing is always recommended.
What is the best water filter for Eau Claire? A NSF/ANSI 53-certified filter for lead removal is a good general choice. See our Water Filter Matcher for personalized recommendations.
Eau Claire vs. Michigan Average
Understanding how Eau Claire compares to the broader Michigan 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 Eau Claire.
ZIP Codes in Eau Claire
Eau Claire spans 1 ZIP code. The ZIP with the lowest water quality score is 49111. 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.