Verdant Environmental personnel prepared a PSD permit application for SO2 for an Alaska petroleum refinery. The PSD permit was required because changes at the refinery that provided additional operational flexibility resulted in increased SO2 emissions of greater than 40 tons per year, the PSD significance threshold. To obtain permit approval we:
- Prepared a BACT analysis
- Performed an analysis of existing air quality and meteorology
- Performed an ambient air quality modeling analysis demonstrating that the project will not exceed national ambient air quality standards or increments.
- Prepared visibility, vegetation, and soils analyses
- Presented the information at a public hearing held prior to permit issuance