NATIONAL AIRPORT
Washington, DC · 28,055 served
NATIONAL AIRPORT serves 28,055 people in Washington, DC. It has 0 health-based violations in the last 5 years. TapGraded has not yet graded this system.
Violation history (last 5 years)
No violations on record.
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Lead (Lead and Copper Rule)
EPA's current lead action level is 15 ppb (dropping to 10 ppb in 2027 under the Lead and Copper Rule Improvements).
PFAS (UCMR5 occurrence data)
System details
- System type
- Non-transient non-community water system
- Water source
- Surface water purchased from another system
- Ownership
- Private
- Service connections
- 42
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Is Washington, DC tap water safe to drink?
NATIONAL AIRPORT has 0 health-based violations in the last 5 years. TapGraded has not yet graded this system.
Does NATIONAL AIRPORT have lead in its water?
The most recent 90th-percentile lead sample is 0 ppb, versus the EPA action level of 15 ppb.
Has PFAS been detected in NATIONAL AIRPORT's water?
This system was tested under UCMR5 and no PFAS was detected above the reporting limit in the analytes we track.
Source: EPA SDWIS/ECHO · Data as of 2026Q2