Connecticut Department of Energy and Environmental Protection (CT DEEP) – Fairfield, Middlesex, and New Haven Nonattainment Area
The Connecticut Department of Energy and Environmental Protection (CT DEEP) regulates air quality in the ozone nonattainment area, which includes Fairfield, Middlesex, and New Haven. The area is currently designated as a Severe nonattainment area for ozone under the 2008 8-hour ozone NAAQS.
Under federal nonattainment New Source Review (NSR) requirements, new or modified major stationary sources of ozone precursors—nitrogen oxides (NOx) and volatile organic compounds (VOC)—must obtain Emission Reduction Credits (ERCs) to offset any proposed emissions increases. For a Severe ozone nonattainment classification (2008 standard), the required offset ratio is 1.3 to 1. For example, if a project proposes to emit 100 tons per year (tpy) of NOx, it must obtain 130 tpy of NOx ERCs.
| Pollutant | New Major Source Emission Rates | Major Modification to existing Source |
|---|---|---|
| Nitrogen oxides (NOx) | ≥50 tons/year | ≥25 tons/year |
| Volatile Organic compounds (VOC) | ≥50 tons/year | ≥25 tons/year |
Facilities that were emitting NOx or VOC may be eligible to generate Emission Reduction Credits (ERCs) with a permanent reduction of those emissions generating from a shutdown or installation of control technology or process change.
If your company has a new project that exceeds thresholds or had a facility with permanent reduction of emissions at any level, please reach out to see how Emissions Experts can assist.