NAVAL OBSERVATORY
Washington Navy Yard, DC · 250 served
NAVAL OBSERVATORY serves 250 people in Washington Navy Yard, DC. It has 0 health-based violations in the last 5 years. TapGraded has not yet graded this system.
Violation history (last 5 years)
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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)
This system was not required to sample under UCMR5 (systems serving fewer than 3,300 people are mostly exempt).
System details
- System type
- Non-transient non-community water system
- Water source
- Surface water purchased from another system
- Ownership
- Federal government
- Service connections
- 29
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Is Washington Navy Yard, DC tap water safe to drink?
NAVAL OBSERVATORY has 0 health-based violations in the last 5 years. TapGraded has not yet graded this system.
Does NAVAL OBSERVATORY have lead in its water?
The most recent 90th-percentile lead sample is 0.5 ppb, versus the EPA action level of 15 ppb.
Has PFAS been detected in NAVAL OBSERVATORY's water?
This system was not required to sample under UCMR5 (systems serving fewer than 3,300 people are mostly exempt).
Source: EPA SDWIS/ECHO · Data as of 2026Q2