MGM NATIONAL HARBOR
PWS ID: MD1160049 · Maryland
MGM NATIONAL HARBOR serves 24,000 people in Maryland using Surface Water water sources. It has 2 recorded EPA violations, including 1 health-based violations. PFAS "forever chemicals" were detected in UCMR5 testing (1 compound found).
Water Quality Snapshot: MGM NATIONAL HARBOR
MGM NATIONAL HARBOR is a private-owned non-transient non-community water system that delivers drinking water to 24,000 residents in Maryland (Prince George's County) through 1 service connections. Its water is drawn from surface water sources. EPA's Safe Drinking Water Information System records 2 total violations for this system , of which 1 (50%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. The most recent violation on record dates to 2024.
The most frequently cited contaminant at this system is LEAD AND COPPER RULE REVISIONS, recorded in 1 violation (RPT). Under EPA's UCMR5 PFAS monitoring program, 1 PFAS compound was detected in samples collected from this system, with a maximum reported concentration of 0.0062 ppt. PFAS are persistent synthetic chemicals linked to health effects at very low exposure levels.
Across Maryland, EPA tracks 3,215 public water systems serving 6,070,211 people, with 60,496 cumulative violations and 18,132 health-based violations on record. About 80% of systems in the state carry at least one violation, and state-wide the average per system is 18.8 violations. MGM NATIONAL HARBOR's 2 violations sit below the Maryland average. Statewide, 50 of 83 UCMR5-tested systems have reported PFAS detections (60.2%). All figures above are sourced directly from EPA SDWIS and UCMR5 public data releases and are updated as EPA publishes new reporting cycles.
1 PFAS "forever chemicals" detected in testing under EPA's UCMR5 monitoring program.
System Details
- System Type
- Non-Transient Non-Community
- Owner Type
- Private
- Connections
- 1
- County
- Prince George's
- School/Daycare
- No
- MCL Violations
- 0
- Monitoring Violations
- 0
- Treatment Tech Violations
- 1
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| LEAD AND COPPER RULE REVISIONS | RPT | 1 | 2024 |
| LEAD AND COPPER RULE REVISIONS | TT | 1 | 2024 |
PFAS Testing Results (UCMR5)
Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 1 of 30 samples detected PFAS.
| Contaminant | Date | Result | MRL | Status |
|---|---|---|---|---|
| 4:2 FTS | 3/13/2025 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| 8:2 FTS | 3/13/2025 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFMPA | 3/13/2025 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFPeA | 3/13/2025 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFMBA | 3/13/2025 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFEESA | 3/13/2025 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| NFDHA | 3/13/2025 | <0.02 µg/L | 0.02 µg/L | Not Detected |
| PFPeS | 3/13/2025 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFHpS | 3/13/2025 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFTA | 3/13/2025 | <0.008 µg/L | 0.008 µg/L | Not Detected |
| PFTrDA | 3/13/2025 | <0.007 µg/L | 0.007 µg/L | Not Detected |
| 6:2 FTS | 3/13/2025 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| NMeFOSAA | 3/13/2025 | <0.006 µg/L | 0.006 µg/L | Not Detected |
| PFDA | 3/13/2025 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| NEtFOSAA | 3/13/2025 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFOA | 3/13/2025 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| lithium | 3/13/2025 | <9 µg/L | 9 µg/L | Not Detected |
| PFBS | 3/13/2025 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFHpA | 3/13/2025 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFHxS | 3/13/2025 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFHxA | 3/13/2025 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFOS | 3/13/2025 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFBA | 3/13/2025 | 0.0062 µg/L | 0.005 µg/L | Detected |
| PFDoA | 3/13/2025 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFUnA | 3/13/2025 | <0.002 µg/L | 0.002 µg/L | Not Detected |
| 11Cl-PF3OUdS | 3/13/2025 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| 9Cl-PF3ONS | 3/13/2025 | <0.002 µg/L | 0.002 µg/L | Not Detected |
| ADONA | 3/13/2025 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| HFPO-DA | 3/13/2025 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFNA | 3/13/2025 | <0.004 µg/L | 0.004 µg/L | Not Detected |
Verify This Water System
The figures above are aggregated from EPA's public databases. To verify the underlying records — or to file a complaint, request a Consumer Confidence Report, or check current monitoring status — go directly to the federal and state regulators that enforce the Safe Drinking Water Act for MGM NATIONAL HARBOR.
EPA SDWIS — Federal Reports
EPA's Safe Drinking Water Information System (SDWIS) holds the federal compliance record for every regulated public water system. Open the system-level report by PWS ID:
View PWS ID MD1160049 on SDWISSource: EPA SDWIS Federal Reports Search
Maryland Drinking Water Authority
Maryland's primacy agency administers the Safe Drinking Water Act locally. Search EPA SDWIS for the current state contact, or use the state's public health or environment department portal.
Find MD regulator via EPA SDWISViolation Timeline
Each row links to the EPA SDWIS public record for verification. Cross-reference the contaminant code on EPA's federal report to see violation dates, return-to-compliance status, and enforcement actions.
| Year (latest) | Contaminant | Category | Count | EPA Record |
|---|---|---|---|---|
| 2024 | LEAD AND COPPER RULE REVISIONS | RPT | 1 | SDWIS / MD1160049 / 5200 |
| 2024 | LEAD AND COPPER RULE REVISIONS | TT | 1 | SDWIS / MD1160049 / 5200 |
How MGM NATIONAL HARBOR Compares
Cross-reference this system's record against state averages and the federal MCL framework for context.
| Metric | MGM NATIONAL HARBOR | Maryland avg | Federal benchmark |
|---|---|---|---|
| Total violations | 2 | 18.8 | SDWA compliance — any non-zero count is a recorded breach |
| Health-based violations | 1 | 5.6 | Indicates a contaminant exceeded a federal MCL |
| PFAS detection | 1 compound | 60.2% | EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt |
| Population served | 24,000 | 1,888 | Sizing context for compliance burden |
Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 3,215 regulated public water systems in Maryland.
Federal MCL reference — Safe Drinking Water Act thresholds ▼
| Contaminant | Federal MCL / Action Level | Note |
|---|---|---|
| Lead | 0 mg/L (Action Level: 0.015 mg/L) | Lead and Copper Rule treatment technique |
| Arsenic | 0.010 mg/L (10 ppb) | Health-based MCL since 2006 |
| Total Coliform | Treatment technique (RTCR) | Indicator organism, monitoring trigger |
| PFOA / PFOS (PFAS) | 4.0 ppt each (final 2024 rule) | Compliance deadline 2029 |
| Nitrate (as N) | 10 mg/L | Acute health risk for infants |
Frequently Asked Questions
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Related Data for Maryland
Read our methodology — how this data is sourced, computed, and verified.