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Former Capitol Castings | VRP Site


5857 S. Kyrene Road, Tempe, AZ

It is bounded by Western Canal and Kiwanis Park to the north and east, Kyrene Road to the west, and Guadalupe Road to the south.

Acceptance Into Voluntary Remediation Program (VRP):

January 2002

Contaminants of Concern (COCs):

  • Benzene, toluene, ethylbenzene, and total xylenes (collectively referred to as BTEX)
  • 1,1,-dichlorethene (1,1-DCE)

Affected Media:

  • Groundwater

What Are My Health Risks?

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 Former Capitol Castings Facility (the Site) has been managed under the oversight of the Arizona Department of Environmental Quality (ADEQ) Voluntary Remediation Program (VRP) since 2002. As with any site that is remediated through the VRP where offsite groundwater impacts are present, the Water Quality Assurance Revolving Fund (WQARF) requirements must be followed at this site. Stakeholders with downgradient receptors have been actively involved in the WQARF process to address any potential impacts or concerns.

The Site COCs are monitored as two separate VRP areas:

  • The 1,1-DCE plume follows WQARF Rule and has a 2016 Record of Decision for monitoring
  • The BTEX plume underwent a public notice period for a risk-based closure for 45 days, beginning May 16, 2019. The notice period ended July 1, 2019. ADEQ hosted a meeting with the sole commenting party on July 29, 2019 to address outstanding concerns. With these comments addressed, ADEQ is awaiting formal written submittal of a response to comments from the Volunteer in order to satisfy remaining requirements of the request for No Further Action