Identification of regulated Emission Sources to be included in the Modeling Analysis.
Determination of facility-wide emission rates based on individual Emission Sources.
Evaluation of whether air dispersion modeling is required using Level I & II de minimis analysis.
Preparation of relevant site and vicinity physical characteristics to be used in the air dispersion modeling analysis, such as property boundaries, fence lines, building footprints and heights, topographical features, and meteorological data.
Determination of Emission Point release characteristics such as location, release height, release type (point, area, or volume), hour/day/month/season adjustments, temperature, flowrate, etc.
Completion of initial screening air dispersion modeling analysis using EPA-approved model AERSCREEN.
Completion of refined air dispersion modeling analysis using EPA-approved model AERMOD.
Preparation of summary report containing details of Modeling Analysis input parameters and results, and comparison to applicable ambient air quality and/or toxic air pollutant standards.