Water Quality in Mountain Top, PA: 31 Violations — Grade C
Grade C · Score 55/100 · 2 water systems · Updated 2026-05-03
Mountain Top'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 Mountain Top, PA show 31 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 Mountain Top
Water quality varies across Mountain Top's 1 ZIP codes. Check your specific ZIP for detailed contaminant data.
| ZIP Code | Grade | Score | Violations | Health | |
|---|---|---|---|---|---|
| 18707 | C | 55 | 31 | 2 | View report → |
Violation Trend
EPA violations recorded for water systems serving Mountain Top.
Water Quality Overview
Mountain Top, Pennsylvania receives a water quality grade of C with an overall score of 55 out of 100, based on EPA compliance data from the Safe Drinking Water Information System (SDWIS).
The 2 water systems serving Mountain Top have accumulated 31 EPA violations, including 2 health-based violations. These violations are tracked across 1 ZIP codes serving approximately 482 people.
What Grade C Means
A grade of C indicates moderate compliance issues. Mountain Top'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 Mountain Top is currently being collected. The EPA requires all community water systems to test for lead under the Lead and Copper Rule.
With 55% of homes built before 1986, Mountain Top 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
Mountain Top 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 Mountain Top
Mountain Top is served by 2 community water systems regulated under the Safe Drinking Water Act. These systems collectively serve approximately 482 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 Mountain Top. Enforcement actions range from informal compliance assistance to formal orders and penalties.
How to Check Your Water in Mountain Top
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 Mountain Top Water Systems
The following contaminants have been detected or caused violations across Mountain Top's water systems:
| Contaminant | Category | MCL | Violations | ZIPs Affected | Health-Based |
|---|---|---|---|---|---|
| Lead and Copper Rule | Treatment Technique | N/A | 8 | 1 | No |
| Surface Water Treatment Rule | Treatment Technique | N/A | 4 | 1 | No |
| Total Organic Carbon | Disinfection Byproducts | N/A | 2 | 1 | No |
| Copper | Inorganic | 1.3 mg/L | 2 | 1 | No |
| Radium-228 | Radionuclides | 5 pCi/L | 1 | 1 | No |
| Uranium | Radionuclides | 0.03 mg/L | 1 | 1 | No |
| Barium | Inorganic | 2 mg/L | 1 | 1 | No |
| Haloacetic Acids (HAA5) | Disinfection Byproducts | 0.06 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 Mountain Top:
| Year | Total Violations | Health-Based |
|---|---|---|
| 2023 | 1 | 1 |
| 2025 | 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 Mountain Top. Recent actions:
| Date | Action Type |
|---|---|
| 2025-10-06 | State Order Extension |
| 2025-07-14 | State Informal Enforcement |
| 2025-07-14 | State Filed Judgment |
| 2025-07-10 | State Order Extension |
| 2025-06-26 | State Order Extension |
| 2024-11-22 | State Informal Action |
| 2024-11-12 | State Filed Judgment |
| 2024-11-12 | State Informal Enforcement |
| 2024-08-27 | State Informal Action |
| 2024-08-27 | State Order Extension |
Enforcement actions range from informal compliance assistance to formal orders and penalties. The most recent action was on 2025-10-06.
Mountain Top vs. Nearby Pennsylvania Cities
How Mountain Top's water quality compares to similar cities in Pennsylvania:
| City | Grade | Violations | Systems | Population |
|---|---|---|---|---|
| Mountain Top | C | 31 | 2 | 482 |
| Allensville | C | 16 | 1 | 480 |
| Amity | C | 0 | 1 | 480 |
| Marianna | C | 19 | 1 | 480 |
Common Questions About Mountain Top Water
These are the most common questions residents search for about water quality in Mountain Top, Pennsylvania:
Is Mountain Top water hard or soft? Water hardness varies by source. Mountain Top's 2 water systems use multiple sources. Check your ZIP code report for specific hardness data.
Can I drink Mountain Top tap water? Mountain Top's water receives a grade of C (55/100). There are 2 health-based violations — consider filtration.
What is the best water filter for Mountain Top? A NSF/ANSI 53-certified filter for lead removal is a good general choice. See our Water Filter Matcher for personalized recommendations.
Mountain Top vs. Pennsylvania Average
Understanding how Mountain Top 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 Mountain Top.
ZIP Codes in Mountain Top
Mountain Top spans 1 ZIP code. The ZIP with the lowest water quality score is 18707. 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.