Water Quality in Port Republic, MD: 1 Violation — Grade B
Grade B · Score 70/100 · 1 water system · Updated 2026-05-03
Port Republic's water is mostly safe. Minor violations exist but are primarily monitoring-related.
Data: EPA Safe Drinking Water Information System (SDWIS) Last verified: 2026-05-03
Port Republic in MD has 1 EPA water violation documented — the compliance history below covers what was flagged and which local systems are associated with each finding.
Water Quality by ZIP Code in Port Republic
Water quality varies across Port Republic's 1 ZIP codes. Check your specific ZIP for detailed contaminant data.
| ZIP Code | Grade | Score | Violations | Health | |
|---|---|---|---|---|---|
| 20676 | B | 70 | 1 | 0 | View report → |
Water Quality Overview
Port Republic, Maryland receives a water quality grade of B with an overall score of 70 out of 100, based on EPA compliance data from the Safe Drinking Water Information System (SDWIS).
The 1 water system serving Port Republic have accumulated 1 EPA violations (all monitoring/reporting type). These violations are tracked across 1 ZIP codes serving approximately 1,425 people.
What Grade B Means
A grade of B indicates good compliance with EPA drinking water standards. While not perfect, Port Republic's water systems meet the vast majority of federal requirements. Minor violations may exist but typically relate to monitoring or reporting rather than health-based standards.
Lead Levels
The average 90th percentile lead level across Port Republic water systems is 0.0030 mg/L — within EPA limits. No ZIP codes exceed the EPA lead action level.
With 55% of homes built before 1986, Port Republic 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
Port Republic 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 Port Republic
Port Republic is served by 1 community water system regulated under the Safe Drinking Water Act. These systems collectively serve approximately 1,425 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 1 enforcement action against water systems serving Port Republic. Enforcement actions range from informal compliance assistance to formal orders and penalties.
How to Check Your Water in Port Republic
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 Port Republic Water Systems
The following contaminants have been detected or caused violations across Port Republic's water systems:
| Contaminant | Category | MCL | Violations | ZIPs Affected | Health-Based |
|---|---|---|---|---|---|
| Stage 1 DBP 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.
EPA Enforcement History
The EPA and state regulators have taken 1 enforcement action against water systems serving Port Republic. Recent actions:
| Date | Action Type |
|---|---|
| 2025-06-27 | State Order Extension |
Enforcement actions range from informal compliance assistance to formal orders and penalties. The most recent action was on 2025-06-27.
Port Republic vs. Nearby Maryland Cities
How Port Republic's water quality compares to similar cities in Maryland:
| City | Grade | Violations | Systems | Population |
|---|---|---|---|---|
| Port Republic | B | 1 | 1 | 1,425 |
| Saint Leonard | D | 0 | 1 | 1,425 |
| Rockville | D | 0 | 3 | 1,494 |
| Pittsville | A | 3 | 1 | 1,500 |
Common Questions About Port Republic Water
These are the most common questions residents search for about water quality in Port Republic, Maryland:
Is Port Republic water hard or soft? Water hardness varies by source. Port Republic's 1 water system uses a single source. Check your ZIP code report for specific hardness data.
Can I drink Port Republic tap water? Port Republic's water receives a grade of B (70/100). No health-based violations have been recorded, but home testing is always recommended.
What is the best water filter for Port Republic? A NSF/ANSI 53-certified filter for lead removal is a good general choice. See our Water Filter Matcher for personalized recommendations.
Port Republic vs. Maryland Average
Understanding how Port Republic compares to the broader Maryland 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 Port Republic.
ZIP Codes in Port Republic
Port Republic spans 1 ZIP code. The ZIP with the lowest water quality score is 20676. 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.
Frequently Asked Questions
Your Water is Safe — Here's How to Keep It That Way
Grade B is excellent news. Here's what proactive homeowners do to maintain water quality:
Annual Water Testing
EPA recommends annual testing even with clean water. Home test kits: $20-$50. Catches changes before they become problems.
Maintenance Filtration
A basic carbon filter removes chlorine taste and catches emerging contaminants like PFAS that aren't yet fully regulated.
Plumbing Check
Even safe city water picks up lead from home pipes. If your home was built before 1986, a one-time pipe inspection is recommended.