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Arizona Army National Guard Camp Navajo | Hazardous Waste Site


T21N R5E, S21, 22, 23, 26, 27, 28, 29, 33, 34, (10 miles W of Flagstaff, AZ)
Bellemont, AZ  86015

Discovery Date:


Contaminants of Concern (COCs):

  • Perchlorate
  • Explosives including: hexahydro-1,3,5-trinitro-1,3,5-triazine (RDX)
  • Nitrate
  • Semi-volatile organics
  • Heavy metals

Affected Media:

  • Soil
  • Surface water
  • Groundwater 

What are My Health Risks: 

For Soil | There is little to no health risk unless there is contact with skin or ingestion of contaminated soil.

For Groundwater | If you are connected to a public water system (PWS) there is little to no risk of impact from exceedances because the water is filtered through the PWS for residential and business use. | View Drinking Water Notices > 

If you have a private well in the vicinity of the exceedance, we encourage you to test the well water.
Not sure what to test for?
Learn More > 

Site Summary:  

A post-closure permit was issued January 27, 2017, establishing a 30-year monitoring period for groundwater and surface water bodies located near the facility. The facility is secured, and certain portions may not be entered by the public. Limitations on recreational use in the surrounding property are in place.  The permit requires preparation of a surface water survey to evaluate potential for run-on and run-off, and to submit work plans to ADEQ if any controls are deemed necessary.

This hazardous waste site is also listed as a Federal Department of Defense (DOD) Site on My Community | View DOD Site Page > 

Corrective Action:

  • Removal of munitions and explosives of concern (MEC), munitions debris (MD), and contaminated soils at solid waste management units (SWMUs) in accordance with the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA), completed May 2016
  • Removal of surface and subsurface munitions and munitions debris in the buffer area surrounding the open burning/open detonation (OBOD) facility completed May 2016
  • Permittee is required to notify ADEQ of any newly-identified contaminated sites
  • Permittee is subject to 5-year evaluations of SWMUs, per CERCLA
  • Permittee is subject to annual inspections of post-closure area and controls, quarterly regional aquifer monitoring and semi-annual vadose zone well monitoring, per the permit.