LOCATION WIDEWATER MD
Established Series
DRV-EHE-MLS-SLD/Rev. JWB
11/2015
WIDEWATER SERIES
MLRA(s): 149A (Northern Coastal Plain)
Depth Class: Very deep
Drainage Class (Agricultural): Poorly drained
Saturated Hydraulic Conductivity Class: Moderately low
Landscape: Coastal Plain
Parent Material: Loamy alluvium
Slope: 0 to 2 percent
Mean Annual Air Temperature (type location): 13 degrees C. (55 degrees F.)
Mean Annual Precipitation (type location): 1067 mm (42 inches)
TAXONOMIC CLASS: Fine-loamy, mixed, active, acid, mesic Fluvaquentic Endoaquepts
TYPICAL PEDON: Widewater loam (in an area of Widewater and Issue soils, 0 to 2 percent slopes, frequently flooded), on a floodplain. (Colors are for moist soil unless otherwise indicated.)
Ag--0 to 10 cm (0 to 4 inches); grayish brown (10YR 5/2) loam, brown (10YR 5/3), dry; moderate coarse granular structure; very friable, moderately sticky, moderately plastic; common very fine to medium roots throughout; common medium and coarse irregular brown (7.5YR 4/4) masses of oxidized iron throughout; moderately acid; clear smooth boundary. (5 to 81 cm thick)
Bg--10 to 20 cm (4 to 8 inches); grayish brown (2.5Y 5/2) fine sandy loam; weak medium subangular blocky structure; very friable, nonsticky, nonplastic; common very fine to medium roots throughout and common coarse roots throughout; common medium and coarse irregular olive yellow (2.5Y 6/6) masses of oxidized iron throughout and common medium dark reddish brown (5YR 3/4) masses of oxidized iron throughout; strongly acid; clear smooth boundary. (0 to 25 cm thick)
BCg1--20 to 46 cm (8 to 18 inches); grayish brown (2.5Y 5/2) fine sandy loam; massive; very friable, nonsticky, nonplastic; common very fine to medium roots throughout and common coarse roots throughout; common medium and coarse irregular olive yellow (2.5Y 6/6) masses of oxidized iron throughout and common medium dark reddish brown (5YR 3/4) masses of oxidized iron throughout; strongly acid; clear smooth boundary.
BCg2--46 to 74 cm (18 to 29 inches); grayish brown (2.5Y 5/2) loam; massive; friable, moderately sticky, moderately plastic; common very fine to medium roots throughout; common coarse irregular reddish brown (5YR 4/4) masses of oxidized iron throughout and common coarse and very coarse irregular yellowish red (5YR 5/8) masses of oxidized iron throughout; strongly acid; gradual smooth boundary.
BCg3--74 to 112 cm (29 to 44 inches); gray (5Y 5/1) loam; massive; friable, moderately sticky, moderately plastic; common medium and coarse irregular yellowish red (5YR 5/8) masses of oxidized iron throughout and common medium and coarse irregular dark brown (7.5YR 3/4) masses of oxidized iron throughout; strongly acid; gradual smooth boundary. (Combined thickness of the BCg horizon is 25 to 127 cm)
Agb--112 to 152 cm (44 to 60 inches); very dark gray (2.5Y 3/1) loam; massive; friable, moderately sticky, moderately lastic; slightly acid; clear wavy boundary.
ABgb--152 to 170 cm (60 to 67 inches); very dark gray (2.5Y 3/1) fine sandy loam; massive; friable, nonsticky, slightly plastic; common medium and coarse irregular reddish brown (5YR 4/4) masses of oxidized iron throughout and common medium and coarse irregular olive (5Y 4/4) masses of oxidized iron throughout; moderately acid; clear smooth boundary. (Combined thickness of the buried Ab horizon is 0 to 64 cm)
Cg--170 to 178 cm (67 to 70 inches); dark grayish green (5G 3/2) clay; massive; firm; strongly acid.
TYPE LOCATION: Anne Arundel County, Maryland; about 0.7 miles south southwest of Lothian; 3,000 feet south southwest of the intersection of MD Route 2 (Solomon's Island Rd.) and MD Route 408 (Mt. Zion Marlboro Rd.) and MD Route 422 (Bayard Rd; USGS Deale, MD topographic quadrangle; 38 degrees 49 minutes 18 seconds N. and lat. 76 degrees 37 minutes 6 seconds W, NAD 83.
RANGE IN CHARACTERISTICS:
Depth to Bedrock: Greater than 183 cm (72 inches)
Depth to Seasonal High Water Table: 0 to 25 cm (0 to 10 inches), September to June
Rock Fragments: 0 to 5 percent, by volume above 102 cm (40 inches) and 0 to 30 percent below 102 cm; mostly rounded mixed gravel
Soil Reaction: Extremely acid to strongly acid, except where limed
Content of Glauconite: Weighted average of 0 to 20 percent pellets throughout
Content of Mica: 0 to 10 percent mica flakes throughout
Other Features--Some pedons have a sulphurous odor.
RANGE OF INDIVIDUAL HORIZONS:
A or Ag horizon:
Color--hue of 5YR to 5Y, value of 3 to 5, chroma of 1 to 4, or is neutral with value of 4 or 5
Texture--loam or silt loam. Some pedons have thin lenses of sandy loam, fine sandy loam, loam, or silty clay loam or have recent loamy overwash as much as 20 inches thick.
Redoximorphic features (if they occur)--masses of oxidized iron in shades of red, yellow, or brown and iron depletions in shades of brown, yellow, olive, or gray
Bg horizon (if it occurs):
Color--hue of 10YR to 5Y, value of 4 to 6, chroma of 1 to 2, or is neutral with value of 4 to 6
Texture--sandy clay loam, fine sandy loam, loam, silt loam, clay loam, or silty clay loam
Redoximorphic features (if they occur)--masses of oxidized iron in shades of red, yellow, and brown and iron depletions in shades of brown, yellow, olive, or gray
Upper BCg horizon (above 102 cm):
Color--hue of 10YR to 10GY, value of 3 to 7, chroma of 1 or 2, or is neutral with value of 4 to 7
Texture--loamy sand, loamy fine sand, fine sandy loam, sandy loam, sandy clay loam, loam, clay loam, silt loam, or silty clay loam
Redoximorphic features (if they occur)--masses of oxidized iron in shade of red, yellow, or brown and iron depletions in shades of brown, yellow, olive, or gray
Lower BCg horizon (below 102 cm):
Color--hue of 10YR to 5G, value of 3 to 5, chroma of 1 or 2, or it is neutral with value of 4 to 7
Texture (fine earth fraction)--highly variable, including loamy sand, loamy fine sand, fine sandy loam, sandy loam, loam, sandy clay loam, clay loam, silt loam, silty clay loam, silty clay, or clay
Redoximorphic features (if they occur)--masses of oxidized iron in shade of red, yellow, or brown and iron depletions in shades of brown, yellow, olive, or gray
Agb or ABgb horizon (if it occurs):
Color--hue of 7.5YR to 5Y, value of 2 to 4, chroma of 1 or 2, or is neutral with value of 2 or 3
Texture (fine-earth fraction)--loamy sand, loamy fine sand, fine sandy loam, sandy loam, loam, clay loam, or silt loam. Some pedons have mucky modifiers and range from 10 to 18 percent organic matter.
Redoximorphic features (if they occur)--masses of oxidized iron in shade of red, yellow, or brown and iron depletions in shades of brown, yellow, olive, or gray
Cg horizon:
Color--hue of 10YR to 10GY, value of 3 to 7, chroma of 1 or 2, or is neutral with value of 4 to 7
Texture--loamy sand, loamy fine sand, fine sandy loam, sandy loam, sandy clay loam, loam, clay loam, clay, silt loam, or silty clay loam
Redoximorphic features (if they occur)--masses of oxidized iron in shade of red, yellow, or brown and iron depletions in shades of brown, yellow, olive, or gray
COMPETING SERIES:
Atkins soils--formed in acid alluvium washed from upland soils that formed from sedimentary bedrock and contain fragments of sandstone and shale
GEOGRAPHIC SETTING:
Landscape: Coastal Plain
Landform: Flood plain
Geomorphic Component: None
Hillslope Profile Position: None
Parent Material: Loamy alluvium
Slope: 0 to 2 percent
Elevation: 0 to 33 meters (0 to 180 feet)
Frost Free Period: 185 to 200 days
Mean Annual Air Temperature: 11 to 13 degrees C. (52 to 56 degrees F.)
Mean Annual Precipitation: 1016 to 1143 mm (40 to 45 inches)
GEOGRAPHICALLY ASSOCIATED SOILS:
Shrewsbury soils--have a seasonal high water table at a depth of 0 to 30 cm (0 to 12 inches) (poorly drained) and greater soil profile development; at heads of drainageways and on toeslopes
Dodon soils--have a seasonal high water table at a depth of 51 to 102 cm (20 to 40 inches) (moderately well drained) and greater soil profile development; on toeslopes and footslopes
Colemantown soils--have a seasonal high water table at a depth of 0 to 30 cm (0 to 12 inches) (poorly drained) and greater soil profile development; at heads of drainageways and on toeslopes
Issue soils--have a seasonal high water table at a depth of 25 to 51 cm (10 to 20 inches) (somewhat poorly drained); on natural levees and slightly higher floodplain positions
DRAINAGE AND SATURATED HYDRAULIC CONDUCTIVITY:
Depth Class: Very deep
Drainage Class (Agricultural): Poorly drained
Internal Free Water Occurrence: Very shallow (0 to 25 cm) and persistent (present 6 to 12 months)
Flooding Frequency and Duration: Frequent for brief periods
Ponding Frequency and Duration: None
Index Surface Runoff: Low to negligible
Saturated Hydraulic Conductivity Class: Moderately low
Permeability Class (obsolete): Slow
Shrink-swell potential: Moderate
USE AND VEGETATION:
Major Uses: Wooded wildlife habitat.
Dominant Vegetation: Where cultivated--hay. Where wooded--red maple, green ash, river birch, American holly, Vaccinium spp., and Carex spp.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: RALEIGH, NORTH CAROLINA
Distribution: Floodplains of the inner Northern Coastal Plain of Maryland
Extent: Small
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Morgantown, West Virginia
SERIES ESTABLISHED: Anne Arundel, Maryland, 2003
REMARKS: Widewater soils were previously mapped as Bibb soils and Mixed Alluvial land.
Diagnostic horizons and soil characteristics recognized in this pedon are:
Ochric epipedon--the zone from 0 to 10 cm (A horizon)
Cambic horizon-the zone from 10 to 112 cm (A, Bg, BCg1, BCg2, and BCg3 horizons)
Aquic conditions--periodic saturation and reduction in a zone from 0 to 178 cm at some time during the year (endosaturation)
Other soil features identified with this pedon:
Irregular decrease in organic carbon--the zone from 25 to 125 cm has an irregular decrease in content of organic carbon or has 0.2 percent or more organic carbon of Holocene age
Series control section--the zone from 0 to 170 cm
The 2007 revision adds saturated hydraulic conductivity class, changes the class from moderately high to moderately low, updates the format, and introduces metric units.
Previous revisions: 8/2005 JAK-DAS
ADDITIONAL DATA:
Laboratory Data: None
Database Information: OSD Data Mapunit ID--To be developed;
Typical Pedon Data Mapunit ID--104522;
OSD User Pedon ID--Widewater-OSD
National Cooperative Soil Survey
U.S.A.