On March 03, 2020 (85 FR 12456), the Environmental Protection Agency (EPA) published a proposed rule in the federal register proposing procedures to allow facilities to request approval to operate with an alternate liner for existing Coal Combustion Residuals (CCR) surface impoundments, two co-proposed options to allow the use of CCR during unit closure, an additional closure option for CCR units being closed by removal of CCR, and requirements for annual closure progress reports. Regarding the options to allow the use of CCR during unit closure, this action serves as a supplemental proposal to a proposed rule (83 FR 11605) issued on March 15, 2018. In that March 15, 2018 proposal, the EPA proposed to allow the continued placement of CCR in units triggered for closure to construct final cover systems provided certain conditions were met. Comments must be received on or before April 17, 2020.

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EPA 03-03-2020 proposed rule coal ash disposal revision