Water Quality in Mount Union, PA: 16 Violations — Grade C
Grade C · Score 58/100 · 1 water system · Updated 2026-05-03
Mount 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
Tracked under the EPA Safe Drinking Water program, Mount Union, PA shows 16 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 Mount Union
Water quality varies across Mount Union's 1 ZIP codes. Check your specific ZIP for detailed contaminant data.
| ZIP Code | Grade | Score | Violations | Health | |
|---|---|---|---|---|---|
| 17066 | C | 58 | 16 | 2 | View report → |
Violation Trend
EPA violations recorded for water systems serving Mount Union.
Water Quality Overview
Mount Union, Pennsylvania receives a water quality grade of C with an overall score of 58 out of 100, based on EPA compliance data from the Safe Drinking Water Information System (SDWIS).
The 1 water system serving Mount Union have accumulated 16 EPA violations, including 2 health-based violations. These violations are tracked across 1 ZIP codes serving approximately 5,801 people.
What Grade C Means
A grade of C indicates moderate compliance issues. Mount 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 Mount Union water systems is 0.0010 mg/L — within EPA limits. No ZIP codes exceed the EPA lead action level.
With 76% of homes built before 1986, Mount 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
Mount 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 Mount Union
Mount Union is served by 1 community water system regulated under the Safe Drinking Water Act. These systems collectively serve approximately 5,801 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 Mount Union. Enforcement actions range from informal compliance assistance to formal orders and penalties.
How to Check Your Water in Mount 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 Mount Union Water Systems
The following contaminants have been detected or caused violations across Mount Union's water systems:
| Contaminant | Category | MCL | Violations | ZIPs Affected | Health-Based |
|---|---|---|---|---|---|
| Fecal Coliform | Microbiological | N/A | 3 | 1 | No |
| Lead and Copper Rule | Treatment Technique | N/A | 3 | 1 | No |
| E. coli | Microbiological | N/A | 2 | 1 | No |
| Haloacetic Acids (HAA5) | Disinfection Byproducts | 0.06 mg/L | 2 | 1 | Yes |
| Chlorite | Disinfection Byproducts | 1 mg/L | 1 | 1 | No |
| Copper | Inorganic | 1.3 mg/L | 1 | 1 | No |
| Total Trihalomethanes (TTHM) | Disinfection Byproducts | 0.08 mg/L | 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 Mount Union:
| Year | Total Violations | Health-Based |
|---|---|---|
| 2023 | 1 | 1 |
| 2024 | 1 | 1 |
Violation counts have remained stable over the observed period.
EPA Enforcement History
The EPA and state regulators have taken 10 enforcement actions against water systems serving Mount Union. Recent actions:
| Date | Action Type |
|---|---|
| 2025-05-27 | State Order Extension |
| 2025-05-27 | State Informal Action |
| 2024-08-20 | State Informal Action |
| 2024-08-20 | State Order Extension |
| 2024-08-01 | State Informal Action |
| 2024-08-01 | State Informal Action |
| 2024-08-01 | State Order Extension |
| 2024-08-01 | State Informal Enforcement |
| 2024-05-23 | State Informal Action |
| 2024-05-23 | State Order Extension |
Enforcement actions range from informal compliance assistance to formal orders and penalties. The most recent action was on 2025-05-27.
Mount Union vs. Nearby Pennsylvania Cities
How Mount Union's water quality compares to similar cities in Pennsylvania:
| City | Grade | Violations | Systems | Population |
|---|---|---|---|---|
| Mount Union | C | 16 | 1 | 5,801 |
| Coraopolis | C | 2 | 1 | 5,804 |
| Albion | B | 20 | 1 | 5,842 |
| Muncy | F | 28 | 5 | 5,760 |
Common Questions About Mount Union Water
These are the most common questions residents search for about water quality in Mount Union, Pennsylvania:
Is Mount Union water hard or soft? Water hardness varies by source. Mount Union's 1 water system uses a single source. Check your ZIP code report for specific hardness data.
Can I drink Mount Union tap water? Mount Union's water receives a grade of C (58/100). There are 2 health-based violations — consider filtration.
What is the best water filter for Mount Union? A NSF/ANSI 53-certified filter for lead removal is a good general choice. See our Water Filter Matcher for personalized recommendations.
Mount Union vs. Pennsylvania Average
Understanding how Mount Union compares to the broader Pennsylvania 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 Mount Union.
ZIP Codes in Mount Union
Mount Union spans 1 ZIP code. The ZIP with the lowest water quality score is 17066. 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.