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WPD | VRP | Nammo Talley Plant No. 3 Former WBO

VRP Site

Nammo Talley Plant No. 3 Former WBO

Revised On: March 29, 2024 - 12:06 p.m.


  • 3659 N. Greenfield Road, Mesa, Arizona

Acceptance Into Voluntary Remediation Program (VRP):

  • May 16, 2019

Contaminants of Concern (COCs):

  • Perchlorate
  • Volatile Organic Compounds (VOCs)

Affected Media:

  • Soil
  • 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:

The Nammo Talley Plant No. 3 Former Water Bore Out site has been managed under the oversight of the Arizona Department of Environmental Quality (ADEQ) Voluntary Remediation Program (VRP) since 2019. Offsite groundwater impacts are present, and stakeholders with receptors have been actively involved to address any potential impacts or concerns.

  • Completed limited soil remediation
  • Ongoing soil and groundwater characterization activities
  • Ongoing groundwater remediation
  • Anticipating Draft Remedial Investigation Report in late 2024

Project Manager
P: 602-771-4847
Email >

VRP Unit Manager
P: 602-771-1612
Email >