Michael Bastach reports for The Daily Caller about the U.S. Environmental Protection Agency’s rocky relationship with the truth when it comes to promoting its new regulations.

The Environmental Protection Agency inflated the monetized benefits of a major air quality rule to justify imposing a harsher smog standard on U.S. counties, according to a new report by Energy In Depth (EID).

“EPA’s ozone rule could very well be the costliest regulation in U.S. history,” said Steve Everley, spokesman for the petroleum industry-backed EID. “If a rule of this magnitude is to be imposed, then the EPA should consider providing a far more scientifically robust ‘public health’ basis — one that doesn’t rely on inflated health benefits or a lack of appreciation for the very real economic costs.”

The EPA proposed its costly smog, or ozone, standard the day before Thanksgiving 2014. The agency mandated that ambient smog levels be lowered from 75 parts per billion (pbb) to levels between 70 ppb and 65 ppb. The EPA also solicited comments for an even lower standard at 60 pbb — one which could put almost the entire country out of compliance with the rule and cost $3.4 trillion by 2040.

The EPA said its new smog standard was based on “1,000 studies” published since 2008. The agency argued the rule would also bring $23 billion in monetized net benefits. But EID found that EPA’s monetized benefit calculation is 3,100 percent higher than what the agency calculated in 2011 for the same smog standard.

This is almost as shocking — by which I mean not shocking at all — as the EPA’s cozy relationship with environmental activists.