PLYMOUTH COUNTY, MASSACHUSETTS SOIL SURVEY UPDATE

Poquonock Soils: Very deep, well-drained soil formed in sandy eolian and/or fluvial deposits, underlain by loamy dense glacial till. Poquonock soils are on drumlins, ground moraines, and uplands.

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Link to Official Series Description
Click here for Poquonock laboratory data S94-MA-023-001 | Pedon Description
Click here for Poquonock laboratory data S94-MA-023-002 | Pedon Description
Poquonock Pedon Description s942302 | Poquonock Pedon Description 2332202 | Poquonock Pedon Description 2332203 | Poquonock Pedon Description 2332204 | Poquonock Pedon Description 2332306 | Poquonock Pedon Description 2332307

Map Unit (s): 322A, 322B, 322C, 323B, 323C
Map Phases:
322A Poquonock loamy sand, 0 to 3 percent slopes.
322B Poquonock loamy sand, 3 to 8 percent slopes
322C Poquonock loamy sand, 8 to 15 percent slopes.
323B Poquonock loamy sand, 3 to 8 percent slopes, very stony.
323C Poquonock loamy sand, 8 to 15 percent slopes, very stony.

Taxonomic Classification: Sandy over loamy, mixed, nonacid, mesic, Typic Udorthents.
Drainage Class: Well drained.
Parent Material: Sandy eolian and/or fluvial material underlain by dense glacial till.
Permeability: Moderately rapid to rapid in the solum, slow to very slow in the dense ubstratum.
Available Water Holding Capacity: Low.
Soil Reaction: Very strongly acid to medium acid throughout. .
Depth to Bedrock: Greater than 65 inches.
Seasonal High Watertable: Depth: 2.5 to 4 feet.
Type: Perched
Months: December to April.
Hydrologic Group: C.
Hydric Soil: No.
Flooding/Ponding Potential: Frequency and Type: None.
Potential Inclusions: Montauk and Paxton soils are similar inclusions. Poorly drained Mattapoisett, Sippican, and Ridgebury soils are along drainageways. Moderately well drained Scituate, Birchwood, and Woodbridge soils are on concave and level slopes.

Soil Suitability:

Agriculture: Map units 322A and 322B are prime farmland soils. Map units 322C and 322B are important farmland soils. Irrigation is needed for optimal production.

Woodland: Well suited for woodland.

Development: Major limitations related to slow permeability in the dense till substratum. Large surface and subsurface stones and boulders may hinder excavation.

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