OR city challenges EPA Crypto mandates
PORTLAND, OR – The Portland Water Bureau (PWB) has filed a petition with the US Court of Appeals for the District of Columbia stating that requirements in the US Environmental Protection Agency's (EPA) final Long-Term 2 Enhanced Surface Water Treatment Rule pertaining to Cryptosporidium are illegal and should be vacated, the American Water Works Association's WaterWeek reported December 28.
The EPA rule requires unfiltered systems to treat source waters for Cryptosporidium and to cover finished water reservoirs or treat their effluent for the pathogen, according to the article.
Portland officials assert in the court brief that the EPA failed to meet key legal and evidentiary requirements to support the Crypto mandates and that neither of the requirements is justified by relevant risk data, the article noted.
