EPA Rolls Back Effluent Limits for Coal Power Plants


Graphic of a coal power plant
Via Flickr

Nicole Welle | September 7, 2020

EPA recently announced it was finalizing the “Steam Electric Consideration Rule,” a rule that will roll back requirements limiting toxic discharge from coal power plants

EPA adopted standards to limit this discharge in 2015, but they extended the compliance date to the completion of this new rule. Now, the new rule is set to adopt weaker standards, provide a further extension for compliance and exempt facilities that will switch fuel sources or are scheduled to retire within a set time period, according to an article published by the Iowa Environmental Council (IEC).

The rule outlines new “effluent limit guidelines” under the Clean Water Act for nitrogen and toxic metals like mercury, arsenic and selenium. These guidelines set water quality standards for industrial discharges based on “the best technology that is economically achievable” for power plants. Instead of setting a strict technology-based standard, this allows facilities to determine what treatment to install that will meet discharge limitations.

“Regulations are meant to be protective of the environment, not the industries that cause pollution,” said IEC Water Program Director Ingrid Gronstal Anderson in an IEC article. “Over the last several years, EPA has been rolling back environmental standards in favor of economic interests. This abdication of regulatory responsibility is a clear danger to public health and the environment.”

EPA claims the new rule will do a better job of reducing pollution than the 2015 rule. However, they base their calculations off of the assumption that facilities will instal better technology and achieve more reductions than the rule actually requires.