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APS Cholla Power Plant | VRP Site


4801 Cholla Lake Road, Joseph City, AZ 

Acceptance Into Voluntary Remediation Program (VRP):

January 28,1998

Contaminants of Concern (COCs):

  • Tetrachloroethylene (PCE)
  • Trichloroethylene (TCE)

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 the site, 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 site, we encourage you to test the well water
Not sure what to test for? | Learn More > 

Site Summary:

  • Groundwater contamination is characterized and does not extend off-site
  • Groundwater is monitored and sampled semi-annually in February and August
  • Groundwater monitoring reports submitted after semi-annual events
  • August 2020 groundwater monitoring report reviewed January 2021
  • March 2021 groundwater monitoring report reviewed June 2021
  • Fall 2021 groundwater monitoring report reviewed April 2022