PLYMOUTH COUNTY, MASSACHUSETTS SOIL SURVEY UPDATE

Tisbury Soils: Very deep, moderately well drained soil formed in silty mantled glacial outwash. Tisbury soils are on low lying areas of glacial outwash plains, deltas and terraces.

Link to Official Series Description

Tisbury Pedon Description 2326101

Map Unit (s): 261A, 261B
Map Phases:

Taxonomic Classification: Coarse-silty over sandy or sandy skeletal, mixed, mesic, Aquic Dystrochrepts.
Drainage Class: Moderately well drained.
Parent Material: Eolian silts and very fine sands underlain by glacial fluvial deposits.
Permeability: Moderate in the solum and rapid to very rapid in the substratum.
Available Water Holding Capacity: High.
Soil Reaction: Very strongly acid to moderately acid throughout.
Depth to Bedrock: Greater than 65 inches.
Seasonal High Watertable: Depth: 1.5 to 4 feet. Type: Apparent. Months: November to April.
Hydrologic Group: B.
Hydric Soil: No (may have hydric inclusions).
Flooding/Ponding Potential: Frequency and Type: None.
Potential Inclusions: Moderately well drained Sudbury and Deerfield soils are similar inclusions. Poorly drained Wareham and Walpole soils are on lower elevations. Well drained Haven, Windsor, Merrimac and Hinckley soils are on higher elevations.

Soil Suitability:

Agriculture: Tisbury soils are prime farmland soils. Tisbury soils are well suited for most agricultural uses. The seasonal high water table may delay some practices during the spring and limit root growth. Tisbury soils have high erosion potential and soil conservation measures should be used to prevent topsoil erosion upon disturbance.

Woodland: Well suited for woodland productivity.

Development: Major limitations related to the seasonal high watertable. Mounded septic systems are usually required. Tisbury soils are associated with aquifer recharge areas and measures should be taken to protect the aquifer.

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