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ENVIRONMENTAL OVERVIEW Climate. Similar to the potential air quality effects, the construction and operation of the project has the potential to increase GHG emissions. An estimate of GHG emissions could be included with the construction emissions inventory. Hazardous Materials, Pollution Prevention, and Solid Waste. Construction associated with the project could generate solid waste. Waste would be handled and disposed according to federal, state, and local rules and regulations. The relocation of the deicing facility would require the Airport to update the SPCC Plan accordingly. Natural Resources and Energy Supply. The project would increase the use of energy at the Airport. However, based on the preliminary scope of each individual project, the increase in energy use would be within the service capacity of the local utility supplier. In addition, the lighting associated with each project is likely to be more energy efficient than existing lighting. Noise and Noise Compatible Land Use. The rehabilitation of the runway would require the temporary closure of the runway. Depending on the phasing of the project, aircraft operations may be shifted to the alternate runway, which could temporary affect noise. It is recommended that the Airport perform a preliminary noise analysis with AEM in order to determine if there would be an increase in the aviation noise contours. If the DNL 65 dBA contour increases by 17%, the NEPA documentation would need to include a full noise analysis using the AEDT. Visual Effects. The projects would be consistent with airport-related development and are not expected to have visual or aesthetic effects to the surrounding area. Lighting associated with the various projects is not expected to cause a noticeable increase in light emissions from the Airport. Water Resources. The project has the potential to affect water resources, specifically wetlands, surface water, and groundwater. Prior to the start of ground disturbing activities, the Airport would be responsible for having these wetlands officially delineated in order to determine the regulatory agency with jurisdiction over the wetlands, and the appropriate mitigation for potential effects. Assuming that the wetlands are regulated by the U.S. Army Corps of Engineers, the Airport would be responsible for obtaining a nationwide permit or individual permit, depending on the number of acres affected. With regards to surface water and groundwater, the project would increase impervious surface. The increase in impervious surface would increase the volume of stormwater runoff; however, the existing stormwater drainage system is anticipated to be able to accommodate the increase in stormwater runoff. Because the project would disturb over one acre of land, the Airport would be responsible for obtaining a NPDES construction permit prior to the start of ground disturbing activities, and all construction activities would be required to comply with the provisions set forth in that permit. The Airport would also be required to update the SWPPP and SPCC. The adherence to the provisions in the required permits and plans would minimize potential effects to surface water and groundwater. The project would not affect Section 4(f) resources; farmlands; historical, architectural, archaeological, and cultural resources; land use; socioeconomics, environmental justice, and cenvironmental health and safety risks; or floodplains because it would occur entirely on Airport property, would not increase the EUGENE AIRPORT MASTER PLAN 7-20