NEVCO ENERGY DESCRIBES COMPARABLE ITEMS

FOR SEVIER POWER COMPANY PROJECT

Bountiful, UT. – The following are a list of comparable items for the Sevier Power Company Project:

Example 1: A typical 3000-acre wildfire in the inter-mountain region, similar to the wildfire that burned near Alpine, Utah, will release 204 tons of particulate matter emissions and 1680 tons of carbon monoxide emissions. This is 30% more carbon monoxide emissions and 15% more PM emissions than the proposed Sevier Power Company plant would release in an entire year!

Example 2: According to the National Climatic Data Center, in 2002, the number of acres burned in Utah was 230,149. This equates to 15,650 tons of particulate matter 128,880 tons of carbon monoxide. By comparison, the amount of particulate matter released last year from these wildfires would equal the amount of particulate matter released from 88 power plants identical to the proposed power plant in Sevier County.

Statement 1: Exhaustive dispersion modeling, a numerical technique using computer models to simulate transport and dispersion of the emissions from the plant, was performed for this facility using the latest AEPA/UDAQ@ approved modeling methods. It is important to note that worst-case emission rate scenarios were modeled. These scenarios are likely never to occur in the actual operation of the plant and are approximately twice the normal expected emission rates!

None of the modeling showed any health problems of any kind! Modeled concentrations were compared to the following standards:

1. National Ambient Air Quality Standards for PM, CO, SO2, NOX, HCL, and BE.  All of these are health based standards in the United States.

2. Class II Increments

3. Class I Increments

4. De Minimis Monitoring Levels

5. Regional Haze

6. Plume Blight

7. Sulfur and Nitrogen Deposition

Statement 2: A full impact modeling analysis was conducted to take into account the combined emissions from the proposed plant with other existing emission sources in the area.  Other major sources of pollution extended out to 100 kilometers (62 miles) were modeled. The cumulative impact from all of the sources did not exceed any health standard.

Statement 3: A regional cumulative impact analysis, the first of it’s kind in Utah, was performed to access the cumulative impact of emissions from the proposed and existing major sources on National Parks in Utah. This analysis showed that no Class I Concentration Increments were exceeded.  Additionally, an analysis of the proposed source indicated that predicted concentrations, at locations within Utah’s National Parks, did not exceed EPA significance levels. And finally, a thorough analysis of deposition and regional haze also indicated that deposition levels and regional haze issues were well below EPA action values. Modeling of the plume also indicated the plume will not be visible at Utah’s National Parks. In 1990, the U.S. Government adopted the Clean Air Act Amendments.  These amendments of the Clean Air Act imposed stringent guidelines that must be followed by all major sources, including proposed power plants like the Sevier Company (SPC) Project.