Water Quality in Greenville, KY: 10 Violations — Grade C
Grade C · Score 67/100 · 2 water systems · Updated 2026-05-03
Greenville'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, Greenville, KY shows 10 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 Greenville
Water quality varies across Greenville's 1 ZIP codes. Check your specific ZIP for detailed contaminant data.
| ZIP Code | Grade | Score | Violations | Health | |
|---|---|---|---|---|---|
| 42345 | C | 67 | 10 | 8 | View report → |
Violation Trend
EPA violations recorded for water systems serving Greenville.
Water Quality Overview
Greenville, Kentucky receives a water quality grade of C with an overall score of 67 out of 100, based on EPA compliance data from the Safe Drinking Water Information System (SDWIS).
The 2 water systems serving Greenville have accumulated 10 EPA violations, including 8 health-based violations. These violations are tracked across 1 ZIP codes serving approximately 22,494 people.
What Grade C Means
A grade of C indicates moderate compliance issues. Greenville'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
Lead testing data for Greenville is currently being collected. The EPA requires all community water systems to test for lead under the Lead and Copper Rule.
With 67% of homes built before 1986, Greenville 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
Greenville is in EPA Radon Zone 2 (Moderate risk). Testing is recommended, especially for homes with basements or ground-level living spaces.
Water Systems Serving Greenville
Greenville is served by 2 community water systems regulated under the Safe Drinking Water Act. These systems collectively serve approximately 22,494 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 Greenville. Enforcement actions range from informal compliance assistance to formal orders and penalties.
How to Check Your Water in Greenville
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 Greenville Water Systems
The following contaminants have been detected or caused violations across Greenville's water systems:
| Contaminant | Category | MCL | Violations | ZIPs Affected | Health-Based |
|---|---|---|---|---|---|
| Total Trihalomethanes (TTHM) | Disinfection Byproducts | 0.08 mg/L | 5 | 1 | Yes |
| Fecal Coliform | Microbiological | N/A | 3 | 1 | Yes |
| Haloacetic Acids (HAA5) | Disinfection Byproducts | 0.06 mg/L | 1 | 1 | Yes |
| 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.
Violation Trend Over Time
Year-by-year EPA violations recorded for water systems serving Greenville:
| Year | Total Violations | Health-Based |
|---|---|---|
| 2021 | 3 | 3 |
| 2022 | 1 | 1 |
| 2024 | 1 | 1 |
| 2025 | 1 | 1 |
Violations have decreased from 3 in 2021 to 1 in 2025, indicating improving compliance.
EPA Enforcement History
The EPA and state regulators have taken 10 enforcement actions against water systems serving Greenville. Recent actions:
| Date | Action Type |
|---|---|
| 2025-06-30 | State Order Extension |
| 2025-05-15 | State Filed Judgment |
| 2025-05-15 | State Informal Enforcement |
| 2025-03-03 | State Informal Action |
| 2024-05-23 | State Informal Action |
| 2024-03-14 | State Filed Judgment |
| 2024-03-14 | State Informal Enforcement |
| 2024-02-29 | State Order Extension |
| 2024-01-16 | State Informal Action |
| 2022-06-30 | State Order Extension |
Enforcement actions range from informal compliance assistance to formal orders and penalties. The most recent action was on 2025-06-30.
Greenville vs. Nearby Kentucky Cities
How Greenville's water quality compares to similar cities in Kentucky:
| City | Grade | Violations | Systems | Population |
|---|---|---|---|---|
| Greenville | C | 10 | 2 | 22,494 |
| Bagdad | B | 1 | 2 | 22,552 |
| Grayson | C | 3 | 2 | 22,347 |
| Taylorsville | B | 0 | 1 | 22,286 |
Common Questions About Greenville Water
These are the most common questions residents search for about water quality in Greenville, Kentucky:
Is Greenville water hard or soft? Water hardness varies by source. Greenville's 2 water systems use multiple sources. Check your ZIP code report for specific hardness data.
Can I drink Greenville tap water? Greenville's water receives a grade of C (67/100). There are 8 health-based violations — consider filtration.
What is the best water filter for Greenville? A NSF/ANSI 53-certified filter for lead removal is a good general choice. See our Water Filter Matcher for personalized recommendations.
Greenville vs. Kentucky Average
Understanding how Greenville compares to the broader Kentucky 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 Greenville.
ZIP Codes in Greenville
Greenville spans 1 ZIP code. The ZIP with the lowest water quality score is 42345. 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.