Water Quality in Twin Rocks, PA: 5 Violations — Grade D
Grade D · Score 49/100 · 1 water system · Updated 2026-05-03
Twin Rocks's water has significant violations. Water testing and filtration are recommended.
Data: EPA Safe Drinking Water Information System (SDWIS) Last verified: 2026-05-03
The compliance record maintained by the EPA for Twin Rocks, PA documents 5 water violations — each tied to a specific public water system and assigned a violation category in the federal Safe Drinking Water dataset.
Water Quality by ZIP Code in Twin Rocks
Water quality varies across Twin Rocks's 1 ZIP codes. Check your specific ZIP for detailed contaminant data.
| ZIP Code | Grade | Score | Violations | Health | |
|---|---|---|---|---|---|
| 15960 | D | 49 | 5 | 1 | View report → |
Water Quality Overview
Twin Rocks, Pennsylvania receives a water quality grade of D with an overall score of 49 out of 100, based on EPA compliance data from the Safe Drinking Water Information System (SDWIS).
The 1 water system serving Twin Rocks have accumulated 5 EPA violations, including 1 health-based violation. These violations are tracked across 1 ZIP codes serving approximately 1,650 people.
What Grade D Means
A grade of D indicates significant compliance issues. Twin Rocks's water systems have accumulated violations that suggest ongoing water quality challenges. Residents should check their specific ZIP code report and consider water testing or filtration.
Lead Levels
The average 90th percentile lead level across Twin Rocks water systems is 0.0170 mg/L — this exceeds the EPA action level of 0.015 mg/L. 1 ZIP code exceed the EPA lead action level.
With 93% of homes built before 1986, Twin Rocks 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
Twin Rocks is in EPA Radon Zone 2 (Moderate risk). Testing is recommended, especially for homes with basements or ground-level living spaces.
Water Systems Serving Twin Rocks
Twin Rocks is served by 1 community water system regulated under the Safe Drinking Water Act. These systems collectively serve approximately 1,650 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 Twin Rocks. Enforcement actions range from informal compliance assistance to formal orders and penalties.
How to Check Your Water in Twin Rocks
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 Twin Rocks Water Systems
The following contaminants have been detected or caused violations across Twin Rocks's water systems:
| Contaminant | Category | MCL | Violations | ZIPs Affected | Health-Based |
|---|---|---|---|---|---|
| Lead and Copper Rule | Treatment Technique | N/A | 2 | 1 | No |
| E. coli | Microbiological | N/A | 1 | 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 10 enforcement actions against water systems serving Twin Rocks. Recent actions:
| Date | Action Type |
|---|---|
| 2025-10-15 | State Informal Action |
| 2025-10-15 | State Order Extension |
| 2025-10-14 | State Informal Enforcement |
| 2025-10-14 | State Informal Action |
| 2025-10-14 | State Informal Action |
| 2025-10-14 | State Order Extension |
| 2025-10-09 | State Informal Enforcement |
| 2025-10-09 | State Filed Judgment |
| 2025-10-09 | State Informal Action |
| 2025-03-03 | State Order Extension |
Enforcement actions range from informal compliance assistance to formal orders and penalties. The most recent action was on 2025-10-15.
Twin Rocks vs. Nearby Pennsylvania Cities
How Twin Rocks's water quality compares to similar cities in Pennsylvania:
| City | Grade | Violations | Systems | Population |
|---|---|---|---|---|
| Twin Rocks | D | 5 | 1 | 1,650 |
| Belsano | D | 0 | 1 | 1,650 |
| Blossburg | C | 3 | 1 | 1,650 |
| Vintondale | C | 0 | 1 | 1,650 |
Common Questions About Twin Rocks Water
These are the most common questions residents search for about water quality in Twin Rocks, Pennsylvania:
Is Twin Rocks water hard or soft? Water hardness varies by source. Twin Rocks's 1 water system uses a single source. Check your ZIP code report for specific hardness data.
Can I drink Twin Rocks tap water? Twin Rocks's water receives a grade of D (49/100). There are 1 health-based violations — consider filtration.
What is the best water filter for Twin Rocks? A NSF/ANSI 53-certified filter for lead removal is a good general choice. See our Water Filter Matcher for personalized recommendations.
Twin Rocks vs. Pennsylvania Average
Understanding how Twin Rocks 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 Twin Rocks.
ZIP Codes in Twin Rocks
Twin Rocks spans 1 ZIP code. The ZIP with the lowest water quality score is 15960. 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.