Soil Map Unit Description from the Soil Survey of Rhode Island

Ma—Mansfield mucky silt loam.
This nearly level, very poorly drained soil is in depressions and small drainageways of drumlins in the southeastern part of the State. Areas are irregular in shape and mostly range from 2 to 20 acres. Slopes range from 0 to 3 percent but are dominantly less than 2 percent.

Typically the surface layer is black mucky silt loam about 8 inches thick. The subsoil is dark gray silt loam 7 inches thick. The substratum is dark gray and olive gray channery silt loam to a depth of 60 inches or more.

Included with this soil in mapping are small areas of poorly drained Stissing soils that make up about 5 per cent of this map unit.

The permeability of this soil is moderate in the surface layer and subsoil and slow or very slow in the substratum. Available water capacity is moderate, and runoff is slow. This soil has a seasonal high water table at or near the surface from late fall through midsummer. The soil is extremely acid through medium acid.

The high water table makes this soil poorly suited to community development. The use of onsite septic systems is not feasible without extensive filling.

Wetness makes the soil unsuitable or poorly suited to cultivated crops, to trees, or to wildlife habitat except wetland wildlife habitat. Many areas have water ponded on the surface during wet seasons, and most do not have suitable drainage outlets. The soil is mainly used for pasture or wetland wildlife habitat. Capability subclass Vw; woodland group 5w.

Soil Map Unit Description from the Soil Survey of Rhode Island

Mc - Mansfield very stony mucky silt loam.
This nearly level, very poorly drained soil is in depressions and small drainageways of drumlins in the southeastern part of the State. Areas are irregular in shape and mostly range from 2 to 20 acres. Stones and boulders cover 2 to 10 percent of the surface area. Slopes range from 0 to 3 percent but are dominantly less than 2 percent.

Typically the surface layer is black mucky silt loam about 8 inches thick. The subsoil is dark gray silt loam 7 inches thick. The substratum is dark gray and olive gray channery silt loam to a depth of 60 inches or more.

Included with this soil in mapping are small areas of poorly drained Stissing soils and small areas of soils that do not have stones or boulders on the surface. Included areas make up about 10 percent of this map unit.

The permeability of this soil is moderate in the surface layer and subsoil and slow or very slow in the substratum. Available water capacity is moderate, and runoff is slow. This soil has a seasonal high water table at or near the surface from late fall through midsummer. The soil is extremely acid through medium acid.

The high water table makes this soil poorly suited to community development. The use of onsite septic systems is not feasible without extensive filling.

Wetness and the stony surface make this soil unsuitable or poorly suited to cultivated crops, to trees, or to wildlife habitat except wetland wildlife habitat. Many areas have water ponded on the surface during wet seasons, and most do not have suitable drainage out lets. The soil is mainly used for woodland. Capability subclass VIls; woodland group 5w.

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