Water Quality in West Union, OH: 2 Violations — Grade C
Grade C · Score 64/100 · 2 water systems · Updated 2026-05-03
West Union'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
SDWIS records for West Union, OH show 2 EPA violations documented for the local water supply — these span the full range of reportable events from health-based exceedances to monitoring and reporting lapses registered with the federal program.
Water Quality by ZIP Code in West Union
Water quality varies across West Union's 1 ZIP codes. Check your specific ZIP for detailed contaminant data.
| ZIP Code | Grade | Score | Violations | Health | |
|---|---|---|---|---|---|
| 45693 | C | 64 | 2 | 1 | View report → |
Water Quality Overview
West Union, Ohio receives a water quality grade of C with an overall score of 64 out of 100, based on EPA compliance data from the Safe Drinking Water Information System (SDWIS).
The 2 water systems serving West Union have accumulated 2 EPA violations, including 1 health-based violation. These violations are tracked across 1 ZIP codes serving approximately 25,480 people.
What Grade C Means
A grade of C indicates moderate compliance issues. West Union'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 West Union water systems is 0.0018 mg/L — within EPA limits. No ZIP codes exceed the EPA lead action level.
With 55% of homes built before 1986, West Union 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
West Union 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 West Union
West Union is served by 2 community water systems regulated under the Safe Drinking Water Act. These systems collectively serve approximately 25,480 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 6 enforcement actions against water systems serving West Union. Enforcement actions range from informal compliance assistance to formal orders and penalties.
How to Check Your Water in West Union
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 West Union Water Systems
The following contaminants have been detected or caused violations across West Union's water systems:
| Contaminant | Category | MCL | Violations | ZIPs Affected | Health-Based |
|---|---|---|---|---|---|
| Stage 2 DBP Rule | Treatment Technique | N/A | 2 | 1 | Yes |
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 6 enforcement actions against water systems serving West Union. Recent actions:
| Date | Action Type |
|---|---|
| 2025-06-25 | State Informal Action |
| 2025-06-11 | State Informal Action |
| 2025-06-11 | State Informal Enforcement |
| 2025-05-27 | State Informal Action |
| 2025-05-27 | State Informal Enforcement |
| 2025-01-28 | State Order Extension |
Enforcement actions range from informal compliance assistance to formal orders and penalties. The most recent action was on 2025-06-25.
West Union vs. Nearby Ohio Cities
How West Union's water quality compares to similar cities in Ohio:
| City | Grade | Violations | Systems | Population |
|---|---|---|---|---|
| West Union | C | 2 | 2 | 25,480 |
| Broadway | D | 0 | 1 | 25,571 |
| Marysville | C | 0 | 1 | 25,571 |
| Jackson | C | 3 | 3 | 25,728 |
Common Questions About West Union Water
These are the most common questions residents search for about water quality in West Union, Ohio:
Is West Union water hard or soft? Water hardness varies by source. West Union's 2 water systems use multiple sources. Check your ZIP code report for specific hardness data.
Can I drink West Union tap water? West Union's water receives a grade of C (64/100). There are 1 health-based violations — consider filtration.
What is the best water filter for West Union? A NSF/ANSI 53-certified filter for lead removal is a good general choice. See our Water Filter Matcher for personalized recommendations.
West Union vs. Ohio Average
Understanding how West Union compares to the broader Ohio 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 West Union.
ZIP Codes in West Union
West Union spans 1 ZIP code. The ZIP with the lowest water quality score is 45693. 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.