USDA - Soil Conservation Service
Pedon Narrative Description
DATE Sampled: 04/23/1991

Soil Series: SWANSEA COS

Site Identification #: 91MA023040

Map Unit Symbol: 59

Lab Pedon #: 2305901

Soil Survey Area #: 023 MLRA: 149B

County Name: Plymouth

Soil Survey Area Name: PLYMOUTH COUNTY, MASSACHUSETTS

Location Description: Pinnacle cranberry bog, 700 feet west of South Road, 1200 feet south of Kings Pond Plain Road, (near grassy pond) in Plymouth, MA.

Quadrangle Name:

Latitude: 41 degrees 54 minutes 48.0 seconds N

Longitude: 70 degrees 40 minutes 57.0 seconds W

UTM Zone: UTM Easting: UTM Northing:

Description Category: Description for research study

Pedon Category: Modal pedon for series

Slope Characteristics Information
Slope: 0 percent

Elevation: 100.0 feet

Physiography:
Local: Bog
Major: Glaciofluvial Landform *

Geographically Associated Soils: CARVER, FREETOWN COS

Water Table Information
Water Table Depth: 14.0 inches
Water Table Kind: Apparent

Flooding Information
Frequency: Frequent
Beginning in Jan. Ending in Dec.
Duration: very long

Moisture Regime: Udic moisture regime

Landuse: Cropland
Stoniness: 0.00 percent

Natural Drainage Class: Very poorly drained

Parent Material: Slightly weathered organic from organic

Described by: P. C. FLETCHER, JOANN PROVOST, JIM TURENNE

Notes: Watertable depth and days regulated by agricultural practice. 72 feet east of transect 3L, 10 feet north of 4L. Vegetation species include cranberry-early blacks howe.

Ap-- 0 to 5.5 inches; 4.6 Bromcresol green; abrupt smooth boundary. alternating layers of organic & mineral; organics - 1/2" thick layers (5 horizons) 5YR 2.5/1, sapric; mineral - 1/2" thick layers, (5 horizons) 10YR 5/2 COS, massive, sg, loose; roots - upper 3" C1; lower 3" MV1, F1; (last A horizon, no roots -- 0 inches; 4.8 Bromcresol green. alternating layers of mineral and organic; mineral - 2 horizons; upper 3/4", lower 1"; 7.5 YR 3/2; COS; mottles-2.5YR 2.5/2 common, med. prom.; 2.5Y 5/2 few med. prom.; organic - 3 horizons 1/4" thick, 5YR 2.5/2, sapric

Ap4-- 9 to 12 inches; 4.8 Bromcresol green; abrupt smooth boundary. 3" sand (start of bog deposit);_2.5Y 5/3 matrix, 2% gravel, single grain, loose; mottles - 10YR 4/4 common, medium, distinct; 5YR 3/4 few, medium, prominent

Oa--13 to 20 inches; black (5YR 2/1) and black (10YR 2/1), after exposure to air, and light yellowish brown (10YR 6/4), pyrophosphate extract, sapric material; 30.0 percent fiber unrubbed; 5.0 percent fiber rubbed; 4.8 Bromcresol green; clear smooth boundary.

Oa2--20 to 30 inches; black (5YR 2/1) and pale brown (10YR 6/3), pyrophosphate extract, sapric material; 60.0 percent fiber unrubbed; 5.0 percent fiber rubbed; 4.8 Bromcresol green; clear smooth boundary.

Oa3--30 to 38 inches; black (5YR 2/1) and brown (10YR 5/3), pyrophosphate extract, sapric material; 25.0 percent fiber unrubbed; 5.0 percent fiber rubbed; 4.8 Bromcresol green; abrupt smooth boundary.

Cg1--38 to 40 inches; very dark gray (10YR 3/1) coarse sand; massive; loose; 4.8 Bromcresol green; abrupt smooth boundary.

Oa4--40 to 45 inches; black (10YR 2/1) sapric material; 15.0 percent fiber unrubbed; 5.0 percent fiber rubbed; 4.8 Bromcresol green; abrupt smooth boundary.

Cg2--45 to 48 inches; dark gray (10YR 4/1) coarse sand; 5.1 Bromcresol green; abrupt smooth boundary.

Oa5--48 to 51 inches; black (10YR 2/1) sapric material; massive; very friable; 5.2 Bromcresol green; abrupt smooth boundary.

Cg3--51 to 72 inches; dark grayish brown (10YR 4/2) coarse sand; single grain; loose; 5.0 Bromcresol green.