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CCR


EPA Changes Closure Requirements in Coal Ash Rule
coal-ash-lined-impoundment

The U.S. Environmental Protection Agency (EPA) on July 29 finalized several changes to the regulations for disposal of coal combustion residuals (CCRs), or coal ash, from electric utilities. The changes…


EPA Overrides Subpart D in Newly Proposed Federal Coal Ash Permitting Rule

Only “high hazard” CCR units will be subject to immediate compliance deadlines under a newly proposed Environmental Protection Agency (EPA) rule that revises federal permit requirements for the management of…


Smarter Monitoring for Coal Ash Remediation
xylem-coal-ash-pond-tss-monitoring

Total suspended solids probe can help coal-fired power plants reduce compliance risks and avoid additional sampling. Water plays an essential role in coal ash remediation, but managing that process often…


EPA Proposes Revisions to Two Obama-Era Rules: Effluent Limitations Guidelines and Coal Ash

The Environmental Protection Agency (EPA) has issued long-awaited proposed revisions of two 2015 Obama-era rules that apply to effluent limitations guidelines (ELGs) for steam electric power plants and coal combustion…


A New Technology for Bottom Ash Conversion Emerges
boiler-bottom-ash-grinder-conveyor-system

New environmental regulations have forced many coal power plant operators to consider alternative options for handling their boiler bottom ash. Although mechanical drag systems can often meet regulatory requirements, space…