PLYMOUTH COUNTY, MASSACHUSETTS SOIL SURVEY UPDATE

Mattapoisett Soils: Very deep, nearly level, poorly and somewhat poorly drained soils formed in sandy eolian and/or fluvial deposits underlain by loamy glacial till. Mattapoisett soils are in depressions, drainageways and low lying areas on ground moraines, ice-contact deposits and uplands.

Mattapoisett SeriesClick here to see a Mattapoisett Soil Profile

Link to Official Series Description
Mattapoisett laboratory data S93-MA-023-001 | Pedon Description
Mattapoisett laboratory data S91-MA-023-003 | Pedon Description | Water Table Data (NOTE: This pedon is the Type Location for Mattapoisett Series)
Pedon Description: 2306904 | Pedon Description: 2306905

Map Unit (s): 069A, 069B
Map Phases:

  • 069A - Mattapoisett loamy sand, 0 to 3 percent slopes, extremely stony.
    069B - Mattapoisett loamy sand, 3 to 8 percent slopes, extremely stony
    •

    Taxonomic Classification: Sandy, mixed, mesic, Ortstein Typic Epiaquods.
    Drainage Class: Poorly drained.
    Parent Material: Sandy eolian and/or fluvial deposits underlain by loamy dense till.
    Permeability: Moderate or moderately rapid in the sandy horizons, slow to very slow in the dense till.
    Available Water Holding Capacity: Low.
    Soil Reaction:.
    Depth to Bedrock: Greater than 65 inches.
    Seasonal High Watertable: Depth: +0.5 to 1.5 feet below the surface. Type: Perched. Months: November to May.
    Hydrologic Group: C.
    Hydric Soil: Yes (Mattapoisett soils are problem hydric soils, having spodic horizons).
    Flooding/Ponding Potential: Frequency and Type: Commonly ponded (A slope only). Duration and Months: Moderately long, November to May.
    Potential Inclusions: Ridgebury, Norwell, Saugatuck and Pipestone soils are similar inclusions. Very poorly drained Sippican, Swansea, Scarboro, and Berryland soils are on lower elevations. Moderately well drained Birchwood and Scituate soils are on higher elevations.

    Soil Suitability:

    Agriculture: Poorly suited for most agricultural uses mainly due to wetness.

    Woodland: Poorly suited due to wetness.

    Development: Poorly suited due to seasonal high watertables at or near the surface for prolong periods of time and slow permeability of the substratum.

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