TagNEPA(463)

Presentation slide titled 'Hazardous Materials' classified as 'Less than significant impacts with mitigation,' describing Port requirements for a construction pollution prevention plan including inventory/inspection of known hazardous materials and a cleanup/disposal plan for the Sea-Tac Airport project area. A map shows the limits of disturbance and contaminated site locations (marked as approximate) within and around the airport footprint.

A presentation slide titled 'Resource Category Impact Overview' displaying a tiered matrix of environmental and transportation resource categories organized by impact level, ranging from 'Significant impacts requiring mitigation' (Surface Transportation) down through 'Less than significant,' 'No impacts,' and 'Not present' (Farmlands, Wild and Scenic Rivers). The slide appears to be from an environmental impact assessment or NEPA-related planning document, numbered page 31.

Slide 29 from what appears to be a Sea-Tac Airport Environmental Impact Statement presentation, summarizing water resource impacts including permanent impacts to 0.79 acres of jurisdictional wetlands, temporary construction impacts of 0.21 acres of wetlands and 3.43 acres of wetland buffers, an increase of approximately 75 acres of impervious surfaces, and permanent impacts to approximately 52 acres within wellhead protection areas. The overall finding is 'Less than significant impacts with mitigation.'

A presentation slide titled 'Biological Resources' states impacts are 'Less than significant with mitigation' and lists mitigation measures including NPDES compliance and a Stormwater Pollution Prevention Plan (SWPPP) for construction of NTPs. A table on the right lists species and habitats such as Chinook salmon, Steelhead, Bull trout, Killer whale, and Monarch butterfly with effects determinations of 'Not likely to adversely affect' or 'No effect.'

A presentation slide titled 'Resource Category Impact Overview' displaying a tiered impact classification chart. Categories range from 'Significant impacts requiring mitigation' (Surface Transportation) down through 'Less than significant impacts with mitigation measures' (Biological Resources, Water Resources, Hazardous Materials/Solid Waste/Pollution Prevention), 'Less than significant impacts,' 'No impacts,' and 'Not present' (Farmlands, Wild and Scenic Rivers).

A presentation slide titled 'Resource Category Impact Overview' displaying a matrix of environmental resource categories organized by impact level, ranging from 'Significant impacts requiring mitigation' (Surface Transportation) down through 'Less than significant,' 'No impacts,' and 'Not present' categories including Biological Resources, Water Resources, Air Quality, Climate, Natural Resources and Energy Supply, and others. The slide is numbered 26 and uses a color-coded layout typical of an environmental impact assessment document.

A presentation slide titled 'Resource Category Impact Overview' organizing environmental resource categories into impact tiers ranging from 'Significant impacts requiring mitigation' (Surface Transportation) down through 'Less than significant impacts,' 'No impacts,' and 'Not present.' Climate is highlighted with a green border under 'Less than significant impacts,' and Farmlands and Wild and Scenic Rivers are marked as 'Not present.'

A presentation slide titled 'Resource Category Impact Overview' displaying a tiered impact matrix categorizing environmental resource areas by level of significance, ranging from 'Significant impacts requiring mitigation' (Surface Transportation) down to 'Not present' (Farmlands; Wild and Scenic Rivers). Categories include Biological Resources, Water Resources, Air Quality, Climate, Land Use, Visual Effects, and Socioeconomic/Environmental Justice among others, with the latter highlighted in a green border under 'Less than significant impacts.'

A presentation slide titled 'Resource Category Impact Overview' displaying a tiered impact matrix categorizing environmental resource areas from 'Significant impacts requiring mitigation' (Surface Transportation) down through 'Less than significant,' 'No impacts,' and 'Not present' (Farmlands, Wild and Scenic Rivers). Categories include Biological Resources, Water Resources, Noise and Noise-Compatible Land Use, Climate, Visual Effects, and Coastal Resources, among others.

A presentation slide titled 'Resource Category Impact Overview' showing a tiered matrix of environmental resource categories ranked by impact level, from 'Significant impacts requiring mitigation' (Surface Transportation) down through 'Less than significant impacts with mitigation measures,' 'Less than significant impacts,' 'No impacts,' and 'Not present' (Farmlands, Wild and Scenic Rivers). The slide appears to be from an environmental impact or NEPA-related assessment document, page 21.