Public water system · NN0400339
ActiveNavajo National Monument
Non-transient non-community water system in Arizona, drawing primarily on groundwater.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
25
Service connections
14
Primary source
GW
Groundwater
System type
NTNCWS
Non-transient non-community water system
System record
Violations & enforcement
| Began | Violation | Contaminant | Health-based | Status |
|---|---|---|---|---|
| 2025-08-01 | 4B | 8000 | No | Unaddressed |
| 2025-07-01 | 4B | 8000 | No | Unaddressed |
| 2025-06-01 | 4B | 8000 | No | Resolved |
| 2024-12-01 | 4B | 8000 | No | Resolved |
| 2024-11-01 | 4B | 8000 | No | Resolved |
| 2024-04-01 | 4B | 8000 | No | Resolved |
| 2023-11-01 | 4B | 8000 | No | Resolved |
| 2023-06-01 | 4B | 8000 | No | Resolved |
| 2023-05-01 | 4B | 8000 | No | Resolved |
| 2023-04-01 | 4B | 8000 | No | Resolved |
| 2023-03-01 | 4B | 8000 | No | Resolved |
| 2023-02-01 | 4B | 8000 | No | Resolved |
Navajo National Monument: frequently asked questions
Is Navajo National Monument's water safe to drink?
Navajo National Monument is an active non-transient non-community water system regulated under the Safe Drinking Water Act, overseen by the NN state drinking water program. EPA SDWA violation and enforcement records for this system are being added to AquaCensus from EPA ECHO; consult EPA ECHO or your annual Consumer Confidence Report for its current compliance status.
Who runs Navajo National Monument?
Navajo National Monument (PWSID NN0400339) is a federal government-owned non-transient non-community water system, regulated by the NN state drinking water program.
How many people does Navajo National Monument serve?
Navajo National Monument reports serving 25 people through 14 service connections in Arizona.
Where does Navajo National Monument get its water?
EPA SDWIS lists this system's primary water source as groundwater.
Other water systems in Arizona
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| New York City System | Richmond | 8,271,000 | Community | Surface water |
| Los Angeles-City, Dept. of Water & Power | Los Angeles | 7,751,132 | Community | Surface water |
| City of Houston | Harris | 2,970,543 | Community | Surface water |
| Chicago | Cook | 2,746,388 | Community | Surface water |
| MWRA | Suffolk | 2,660,000 | Community | Surface water |
| Mdwasa - Main System | Miami-Dade | 2,377,460 | Community | Groundwater |