Category: Permitting

Severe Ozone Nonattainment Status Finalization

The Denver Metro North Front Range area has recently been reclassified to a severe ozone nonattainment area.   This reclassification is an effort to reduce the brown smog that often covers our city and impacts the health of residents.  This will mean more stringent requirements for new sources and modifications in the area.  Depending on your […]

Smaller Sources and Potential to Emit

With major source limits in the Denver metro area non-attainment area lowering to 25 tons per year of NOx or VOC in early 2022, many sources that have previously considered themselves to be small may be bumping into major source limits and the permitting requirements applicable to major sources.  The 25 tons per year emission […]

Planning for Ozone Non-attainment Downgrade – Again

On December 15, 2020 Governor Polis released a statement about his intentions to push for a downgrade for the Denver Metropolitan/North Front Range Area from serious to severe non-attainment for the area’s ozone levels.  The area has been unable to achieve a ground-level ozone standard of 75 ppb.  The statement said that state agencies and […]

Project Emissions Accounting Update

On October 22, 2020 the EPA finalized the latest guidance on Project Emissions Accounting for Prevention of Significant Deterioration (PSD) and Nonattainment New Source Review (NNSR). In short, the new guidance says that sources can consider emissions reductions in the first step of emissions accounting, which allows them to couple emissions reductions with increases that […]