Epsilon conducted Class I impact analyses for a proposed power plant in Virginia using the CALMET meteorological model and the CALPUFF dispersion/deposition model.  Three impact analyses were conducted for two Class I areas, James River Face Wilderness Area and Shenandoah National Park.  Air quality impacts of SO2, PM10 and NOx concentrations were evaluated.  Total sulfur and nitrogen deposition in the Class I areas were assessed and a visibility impact assessment was performed for each Class I area.

Epsilon performed a CALPUFF modeling and risk assessment for a 700 MW proposed coal-fired power plant.  Analyses included assessment of deposition of nitrogen and sulfur on sensitive prairie flora, including a rare clover.  The project included reconciliation of protocols with the U.S. EPA, U.S Fish and Wildlife, the Midewin National Prairie and Illinois EPA.

Epsilon performed meteorological and dispersion modeling with CALMET and CALPUFF to assess near field air quality impacts in support of a PSD permit.  The sources evaluated at the primary aluminum smelter include line sources, point sources, fugitive emissions, roadways and a landfill.  A cumulative source impact assessment was performed with CALPUFF.  Compliance with the NAAQS, PSD regulations and the Maryland Air Toxic regulations was demonstrated.

Epsilon conducted Class I impact analyses for a proposed electric generating facility in New Jersey using the CALPUFF model in screening mode.  IWAQM recommendations were followed in assessing the impacts at Brigantine National Wildlife Refuge.  A visibility impairment assessment was performed, and total nitrogen deposition in the Class I area was modeled.