Water Quality in Belleville, WI: 2 Violations — Grade C
Grade C · Score 66/100 · 1 water system · Updated 2026-05-03
Belleville'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
Belleville, WI — 2 compliance events documented in the federal drinking water record.
Water Quality by ZIP Code in Belleville
Water quality varies across Belleville's 1 ZIP codes. Check your specific ZIP for detailed contaminant data.
| ZIP Code | Grade | Score | Violations | Health | |
|---|---|---|---|---|---|
| 53508 | C | 66 | 2 | 1 | View report → |
Water Quality Overview
Belleville, Wisconsin receives a water quality grade of C with an overall score of 66 out of 100, based on EPA compliance data from the Safe Drinking Water Information System (SDWIS).
The 1 water system serving Belleville have accumulated 2 EPA violations, including 1 health-based violation. These violations are tracked across 1 ZIP codes serving approximately 2,712 people.
What Grade C Means
A grade of C indicates moderate compliance issues. Belleville'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 Belleville water systems is 0.0015 mg/L — within EPA limits. No ZIP codes exceed the EPA lead action level.
With 45% of homes built before 1986, Belleville 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
Belleville 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 Belleville
Belleville is served by 1 community water system regulated under the Safe Drinking Water Act. These systems collectively serve approximately 2,712 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
How to Check Your Water in Belleville
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 Belleville Water Systems
The following contaminants have been detected or caused violations across Belleville's water systems:
| Contaminant | Category | MCL | Violations | ZIPs Affected | Health-Based |
|---|---|---|---|---|---|
| Stage 2 DBP Rule | Treatment Technique | N/A | 1 | 1 | Yes |
| Lead and Copper 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.
Belleville vs. Nearby Wisconsin Cities
How Belleville's water quality compares to similar cities in Wisconsin:
| City | Grade | Violations | Systems | Population |
|---|---|---|---|---|
| Belleville | C | 2 | 1 | 2,712 |
| Lomira | D | 1 | 1 | 2,701 |
| Mondovi | C | 3 | 2 | 2,727 |
| Casco | D | 0 | 1 | 2,737 |
Common Questions About Belleville Water
These are the most common questions residents search for about water quality in Belleville, Wisconsin:
Is Belleville water hard or soft? Water hardness varies by source. Belleville's 1 water system uses a single source. Check your ZIP code report for specific hardness data.
Can I drink Belleville tap water? Belleville's water receives a grade of C (66/100). There are 1 health-based violations — consider filtration.
What is the best water filter for Belleville? A NSF/ANSI 53-certified filter for lead removal is a good general choice. See our Water Filter Matcher for personalized recommendations.
Belleville vs. Wisconsin Average
Understanding how Belleville 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 Belleville.
ZIP Codes in Belleville
Belleville spans 1 ZIP code. The ZIP with the lowest water quality score is 53508. 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.