Water Quality in Danville, VA: 88 Violations — Grade C
Grade C · Score 60/100 · 2 water systems · Updated 2026-05-03
Danville'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
According to EPA filings, Danville, VA has 88 water compliance violations on record — sourced from SDWIS, the federal database that tracks reportable events for every registered public water system in the state.
Water Quality by ZIP Code in Danville
Water quality varies across Danville's 4 ZIP codes. Check your specific ZIP for detailed contaminant data.
| ZIP Code | Grade | Score | Violations | Health | |
|---|---|---|---|---|---|
| 24540 | C | 57 | 22 | 3 | View report → |
| 24541 | C | 57 | 22 | 3 | View report → |
| 24543 | C | 62 | 22 | 3 | View report → |
| 24544 | C | 62 | 22 | 3 | View report → |
Violation Trend
EPA violations recorded for water systems serving Danville.
Water Quality Overview
Danville, Virginia receives a water quality grade of C with an overall score of 60 out of 100, based on EPA compliance data from the Safe Drinking Water Information System (SDWIS).
The 2 water systems serving Danville have accumulated 88 EPA violations, including 12 health-based violations. These violations are tracked across 4 ZIP codes serving approximately 43,095 people.
What Grade C Means
A grade of C indicates moderate compliance issues. Danville'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 Danville water systems is 0.0017 mg/L — within EPA limits. No ZIP codes exceed the EPA lead action level.
With 78% of homes built before 1986, Danville 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
Danville 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 Danville
Danville is served by 2 community water systems regulated under the Safe Drinking Water Act. These systems collectively serve approximately 43,095 people across 4 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 40 enforcement actions against water systems serving Danville. Enforcement actions range from informal compliance assistance to formal orders and penalties.
How to Check Your Water in Danville
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 Danville Water Systems
The following contaminants have been detected or caused violations across Danville's water systems:
| Contaminant | Category | MCL | Violations | ZIPs Affected | Health-Based |
|---|---|---|---|---|---|
| Haloacetic Acids (HAA5) | Disinfection Byproducts | 0.06 mg/L | 12 | 4 | Yes |
| Surface Water Treatment Rule | Treatment Technique | N/A | 8 | 4 | No |
| Lead and Copper Rule | Treatment Technique | N/A | 8 | 4 | No |
| Arsenic | Inorganic | 0.01 mg/L | 4 | 4 | No |
| Stage 1 DBP Rule | Treatment Technique | N/A | 4 | 4 | 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 Danville:
| Year | Total Violations | Health-Based |
|---|---|---|
| 2022 | 4 | 4 |
| 2023 | 8 | 8 |
Violations have increased from 4 in 2022 to 8 in 2023. This trend warrants monitoring.
EPA Enforcement History
The EPA and state regulators have taken 10 enforcement actions against water systems serving Danville. Recent actions:
| Date | Action Type |
|---|---|
| 2024-07-29 | State Filed Judgment |
| 2024-07-08 | State Order Extension |
| 2023-08-07 | State Order Extension |
| 2023-07-05 | State Informal Action |
| 2023-06-05 | State Filed Judgment |
| 2023-06-05 | State Informal Enforcement |
| 2023-05-22 | State Informal Action |
| 2023-04-21 | State Filed Judgment |
| 2023-04-21 | State Informal Enforcement |
| 2023-02-16 | State Informal Action |
Enforcement actions range from informal compliance assistance to formal orders and penalties. The most recent action was on 2024-07-29.
Danville vs. Nearby Virginia Cities
How Danville's water quality compares to similar cities in Virginia:
| City | Grade | Violations | Systems | Population |
|---|---|---|---|---|
| Danville | C | 88 | 2 | 43,095 |
| Blairs | D | 0 | 1 | 43,055 |
| Cascade | D | 0 | 1 | 43,055 |
| Keeling | D | 0 | 1 | 43,055 |
Water Quality by ZIP Code in Danville
Water quality varies across Danville's ZIP codes. The table below shows the worst-scoring and best-scoring areas:
| ZIP Code | Score | Grade | Violations | Health-Based |
|---|---|---|---|---|
| 24540 | 57 | C | 22 | 3 |
| 24541 | 57 | C | 22 | 3 |
| 24543 | 62 | C | 22 | 3 |
| 24544 | 62 | C | 22 | 3 |
Common Questions About Danville Water
These are the most common questions residents search for about water quality in Danville, Virginia:
Is Danville water hard or soft? Water hardness varies by source. Danville's 2 water systems use multiple sources. Check your ZIP code report for specific hardness data.
Can I drink Danville tap water? Danville's water receives a grade of C (60/100). There are 12 health-based violations — consider filtration.
What is the best water filter for Danville? A NSF/ANSI 53-certified filter for lead removal is a good general choice. See our Water Filter Matcher for personalized recommendations.
Danville vs. Virginia Average
Understanding how Danville compares to the broader Virginia 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 Danville.
ZIP Codes in Danville
Danville spans 4 ZIP codes. The ZIP with the lowest water quality score is 24540. 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.