CCR Rule Compliance Data & Information

The U.S. Environmental Protection Agency (EPA) issued a final rule on April 17, 2015, to regulate Coal Combustion Residuals (CCR) under Subtitle D of the Resource Conservation and Recovery Act. CCRs include fly ash, bottom ash, boiler slag and flue gas desulfurization materials.

The CCR rule has an effective date of Oct. 19, 2015, and regulates CCRs at electric utilities. SRP operates two coal-fired electric generating facilities that are regulated under this rule — The Coronado Generating Station (CGS) located near St. Johns, Arizona, and the Navajo Generating Station (NGS) located near Page, Arizona on the Navajo Nation.

The CCR units regulated at these facilities under the rule are:

  • CGS Evaporation Pond
  • CGS Ash Landfill
  • CGS Inactive Ash Slurry Settling Ponds
  • NGS Ash Landfill

The final rule contains key milestones for implementation and to demonstrate compliance with the requirements, including posting documents to a publicly accessible internet site. The documents provided here demonstrate SRP’s compliance with the EPA CCR rule for CGS and NGS.

To view the documents please log in with your CCR account and password. If you don't have one, you can register here:

Your CCR account provides access to available documents and is separate from an SRP customer account