Seattle Muck

Mapping Symbol: Sk

The Seattle series consists of very poorly drained organic soils that formed primarily in sedges. Slopes are less than 1%. The
annual precipitation is 35 to 50 inches. The frost-free season is about 150 to 250 days.

Typical Profile:
Depth from Surface:
0 to 11 Inches: Black muck 
11 to 60 Inches: Dark brown muck and mucky peat

Permeability: Moderate

Rooting Depth: 60 inches + if drained 

Depth to Seasonal High Water Table: 0 to 1 foot

Available Water Holding Capacity: High

Runoff Potential: Ponded

Erosion and Slippage Hazard: None

Use and Management: If drained, Seattle soils are used for seeded grass pasture, hay, blueberries, and truck crops. They have
severe limitations for agricultural and forestry use, forestry, engineering, and recreational purposes because of the organic content
and high water table.

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