Wehrum Aids Industry By Raising Bar For 'Aggregation' In NSR Air Permits

EPA air chief William Wehrum is aiding industry groups in their bid to avoid strict Clean Air Act new source review (NSR) permits by raising the bar for when emissions sources must be “aggregated,” or combined, and counted as a single source -- one of several policy steps the Trump administration is taking to ease the NSR program. Wehrum announced the policy change in an April 30 memo to Patrick McDonnell, Pennsylvania's environment secretary, finding that a landfill in the...