1815 13TH ST SEPA 016 - 013 - PRMC NEW CLINIC BUILDING Land Use Decision Documents 2025-04-21

EVALUATION FOR AGENCY USE ONLY The PSCAA, in connection with the Washington State Department of Ecology (Ecology), conducts air quality monitoring at several sites around the Puget Sound. According to PSCAA's 2013 Air Quality Data Summary (the most recent available), air quality within the Puget Sound Basin has been in compliance with State and federal particulate (PM) air quality standards since 1988 and ozone and carbon monoxide standards since 1996. However, the region faces non -attainment, potentially in multiple areas for PM2.5 and ozone. This is due to stricter fine particulate standards and a potentially stricter ozone standard. The existing Central Utility Building would emit diesel engine exhaust from the emergency power generators. The engine -generator equipment is compliant with Environmental Protection Agency (EPA) Tier 2 requirements. The exhaust emissions occur on a regular monthly schedule based on required code testing activity, and are not expected to exceed the regulatory limits. b. Are there any off -site sources of emissions or odor that may affect your proposal? If so, generally describe. There are no off -site emissions or odors that would affect the proposal. Land uses in the vicinity are primarily residential. The predominate source of air pollution in the project area is traffic on nearby roads and the use of wood burning stoves and fireplaces. As a result, pollutants are mainly particulates (from wood stoves, fireplaces, outdoor burning, and roads) and ozone and carbon monoxide from vehicular traffic. Emissions from vehicles on nearby roads would not have an impact on the proposal. c. Proposed measures to reduce or control emissions or other impacts to air, if any: Under PSCAA's Regulation I, Section 9.15, contractor(s) working on construction projects are required to take all reasonable precautions to avoid or minimize fugitive dust emissions. These precautions and control measures may include street cleaning to prevent dirt, mud and other debris deposits on paved roadways open to the public. With such control measures in place, the potential from on -site air quality impacts is minimal. Construction related traffic would need to be coordinated with peak flow times, so as to alleviate congestion and reduce emissions. 3. WATER a. Surface Water: I) Is there any surface water body on or in the immediate vicinity of the site (including year-round and seasonal streams, saltwater, lakes, ponds, wetlands)? If yes, describe type and provide names. If appropriate, state what stream or river it flows into. There are no surface water bodies on or near the site. Environmental Checklist — Providence Regional Medical Center Everett — North Site Page 8 ® SHO(�KEy