1502 WALL ST IMAGINE CHILDRENS MUSEUM 2022-08-25

Element 5: Stabilize Soils (2.1.5) Describe how you will stabilize exposed and unworked soils throughout the life of the project (i.e. temporary and permanent seeding, mulching, erosion control fabrics, etc.). Describe how you will stabilize soil stockpiles. Describe how you will minimize the amount of soil exposed throughout the life of the project. Describe how you will minimize the disturbance of steep slopes. Describe how you will minimize soil compaction. Describe how you will stabilize contaminated soil and contaminated soil stockpiles if applicable. Exposed and unworked soils will be stabilized according to the time period set forth for dry and wet seasons, on the west or east sides of the crest of the Cascade Mountains. Select your region's table and delete the others. West of the Cascade Mountains Crest Season Dates Number of Days Soils Can be Left Exposed During the Dry Season May 1 — September 30 7 days During the Wet Season October 1 —April 30 2 days Soils must be stabilized at the end of the shift before a holiday or weekend if needed based on the weather forecast. Anticipated project dates: Start date: End date: Will you construct during the wet season? Yes No BMP C140: Dust Control Dust control measures will be applied as needed to fugitive dust from leaving the site in accordance with state and local permit requirements. Dust control measures should be in place prior to work which has the potential to create dust. The contractor shall note proposed work, eather and soil conditions, and other factors as needed to anticipate potential dust problems.