Washington Navy Yard, DC: High Radon Risk — 50/100 (2026)
5 ZIP codes · 1 water system · Updated 2026-06-03
Unlike better-scoring cities in DC, Washington Navy Yard records health-based violations across a meaningful portion of its service areas — the overall safety grade is well below average.
How Washington Navy Yard Compares
Data: EPA SDWIS Last verified: 2026-06-03
Water Quality Map: Washington Navy Yard, DC
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Score Distribution
How ZIP codes in Washington Navy Yard score across all safety grades.
What You Should Know About Washington Navy Yard Water
- Estimated remediation: $500 per household.
- CDC health risk index: 9.32.
Who Supplies Your Water in Washington Navy Yard
While 1 water system appear in federal records for Washington Navy Yard, DC, one provider supplies the majority of residential connections — making it the central point of infrastructure and compliance accountability for most households.
Overview
We track water quality and home safety data for 5 ZIP codes in Washington Navy Yard, District of Columbia, covering 1 community water system serving approximately 632,323 people.
No EPA violations recorded across any ZIP codes in Washington Navy Yard — an excellent indicator of water quality.
Home Safety Score
Average Home Safety Score for Washington Navy Yard: D (50/100)
The score combines three factors:
| Factor | What It Measures |
|---|---|
| Water Quality | EPA violations and compliance history |
| Lead Levels | 90th percentile lead concentration vs EPA action level |
| Radon Risk | EPA radon zone classification |
Water Sources
Washington Navy Yard water systems draw from: Surface water.
Lead & Copper
- Lead data: not yet available for Washington Navy Yard
- 0 ZIP codes exceed the EPA lead action level
Radon Risk
Dominant radon zone: Zone 1 (High Risk)
- Zone 1 (High): 0 ZIP codes
- Zone 2 (Moderate): 0 ZIP codes
- Zone 3 (Low): 0 ZIP codes
The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.
Areas with No Violations
| ZIP Code | Safety Score | System | Population |
|---|---|---|---|
| 20374 | D | D.C. WATER AND SEWER AUTHORITY | 632,323 |
| 20376 | D | D.C. WATER AND SEWER AUTHORITY | 632,323 |
| 20388 | D | D.C. WATER AND SEWER AUTHORITY | 632,323 |
| 20391 | D | D.C. WATER AND SEWER AUTHORITY | 632,323 |
| 20398 | D | D.C. WATER AND SEWER AUTHORITY | 632,323 |
All ZIP Codes in Washington Navy Yard
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
Updated daily.
Health Outcomes in Washington Navy Yard
Source: CDC PLACES (County-level estimates). Water contamination can correlate with respiratory and chronic health conditions.
Compared to National Average
Vertical line = national average. ■ Above national · ■ Below national
What You Can Do in Washington Navy Yard
- Test your water at home. City-level data shows averages — your tap may differ. NSF-certified test kits cost $20-40 and give results in days.
- Install a certified water filter. An NSF-certified pitcher or under-sink filter removes most common contaminants.
- Check your home's plumbing. Homes built before 1986 may have lead solder in pipes. A licensed plumber can assess your risk.
- Review your water system's CCR. Your utility publishes an annual Consumer Confidence Report with detailed test results. Request it or find it online.
Deep Dive Reports
Detailed analysis for Washington Navy Yard, DC