LOCATION ALLOWAY NJ+MD
Established Series
SCK/Rev. JAK
11/2015
ALLOWAY SERIES
MLRA(s): 149A, 153C, 153D
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: RALEIGH, NORTH CAROLINA
Depth Class: Very deep
Drainage Class (Agricultural): Moderately well drained
Internal Free Water Occurrence: Moderately deep and common
Flooding Frequency and Duration: None
Ponding Frequency and Duration: None
Index Surface Runoff: Medium to very high
Permeability: Slow
Shrink-Swell Potential: Low
Landscape: Northern Atlantic Coastal Plain
Landform: Low interfluve, gentle hill, and slight depression
Geomorphic Component: Base slope
Hillslope Profile Position: Low summit, backslope, and footslope
Parent Material: Silty and clayey eolian deposits and/or fluviomarine deposits
Slope: 0 to 15 percent
Elevation (type location): 35 feet
Frost Free Period (type location): 195 days
Mean Annual Air Temperature (type location): 56 degrees F.
Mean Annual Precipitation (type location): 45 inches
TAXONOMIC CLASS: Fine, mixed, active, mesic Aquic Paleudults
TYPICAL PEDON: Alloway silt loam (in an area of Alloway silt loam, 2 to 5 percent slopes), cultivated. (Colors are for moist soil.)
Ap--0 to 11 inches; dark yellowish brown (10YR 4/4) silt loam, yellowish brown (10YR 5/4) dry; strong medium and coarse granular structure; friable; moderately sticky, moderately plastic; few medium and fine roots; slightly acid; abrupt smooth boundary. (6 to 12 inches thick)
Bt1--11 to 18 inches; yellowish brown (10YR 5/6) silty clay loam; strong coarse subangular blocky structure parting to strong medium subangular blocky; firm; very sticky, very plastic; few fine and very fine roots; common faint clay films; slightly acid; clear smooth boundary.
Bt2--18 to 24 inches; yellowish brown (10YR 5/8) silty clay loam; strong medium and fine subangular blocky structure; firm; very sticky, very plastic; few fine and very fine roots; common faint clay films; slightly acid; clear smooth boundary.
Bt3--24 to 32 inches; yellowish brown (10YR 5/6) clay loam; strong coarse and medium subangular blocky structure; friable; moderately sticky, moderately plastic; few fine and very fine roots; common faint clay films; few fine distinct light gray (10YR 7/1) irregularly shaped iron depletions with clear boundaries and few fine faint strong brown (7.5YR 5/8) irregularly shaped masses of oxidized iron with diffuse boundaries throughout; 10 percent, by volume, round quartzite gravel; moderately acid; clear smooth boundary.
Bt4--32 to 39 inches; reddish yellow (7.5YR 6/8) clay loam; strong coarse and medium subangular blocky structure; friable; moderately sticky, moderately plastic; few fine and very fine roots; common faint clay films; common fine distinct light gray (10YR 7/1) irregularly shaped iron depletions with clear boundaries throughout; 5 percent, by volume, round quartzite gravel; moderately acid; gradual smooth boundary.
Bt5--39 to 49 inches; reddish yellow (7.5YR 6/8) clay loam; strong coarse and medium subangular blocky structure; friable; very sticky, very plastic; few fine and very fine roots; common faint clay films; common fine distinct pinkish gray (7.5YR 7/2) irregularly shaped iron depletions with clear boundaries throughout; moderately acid; clear smooth boundary. (Combined thickness of the Bt is 40 to greater than 60 inches.)
C--49 to 66 inches; reddish yellow (7.5YR 6/8) clay; massive; friable; very sticky, very plastic; few fine and very fine roots; common faint clay films; common fine distinct pinkish gray (7.5YR 7/2) irregularly shaped iron depletions with clear boundaries throughout; moderately acid, clear smooth boundary.
Cg--66 to 80 inches; light gray (10YR 7/2) clay; massive; friable; very sticky, very plastic; few fine and very fine roots; common faint clay films; common fine distinct yellowish red (5YR 5/6) irregularly shaped masses of oxidized iron with diffuse boundaries throughout; moderately acid.
TYPE LOCATION: Salem County, New Jersey; about 0.5 mile west of Swedes Bridge Road at a point 0.1 mile south of the intersection of Portertown Road and Swedes Bridge Road; USGS Alloway topographic quadrangle; lat. 39 degrees 24 minutes 42 seconds N. and long. 75 degrees 22 minutes 30 seconds W.
RANGE IN CHARACTERISTICS:
Depth to top of Argillic horizon: 6 to 19 inches
Depth to base of Argillic horizon: 35 to greater than 60 inches
Depth to Bedrock: Greater than 72 inches
Depth to Seasonal High Water Table: 18 to 42 inches, January to April
Rock Fragments: 0 to 15 percent, by volume throughout the profile, mostly rounded quartzite gravel
Soil Reaction: Extremely acid to strongly acid, throughout the profile, unless limed
RANGE OF INDIVIDUAL HORIZONS:
Ap horizon:
Color--hue of 7.5YR to 2.5Y, value of 2 to 6, chroma of 1 or 4
Texture--sandy loam, loam, or silt loam
A horizon:
Color--hue of 7.5YR to 2.5Y, value of 2 to 4, chroma of 1 to 4
Texture--sandy loam, loam, or silt loam
E, BE or BA horizons (if they occur):
Color--hue of 7.5YR to 2.5Y, value of 4 to 6, chroma of 3 to 6
Texture--sandy clay loam, sandy loam, loam, or silt loam
Bt horizon:
Color--hue of 5YR to 10YR, value of 4 to 7, chroma of 3 to 8
Texture--sandy clay loam, sandy clay, clay, clay loam, silt loam, silty clay loam, or silty clay
Redoximorphic Features--iron depletions in shade of white or gray and masses of oxidized iron in shades of red, brown, yellow, or olive
Btg horizon (if it occurs):
Color--hue of 5YR to 10YR, value of 4 to 7, chroma of 1 or 2, or is neutral with value of 4 to 7
Texture--sandy clay loam, sandy clay, clay, clay loam, silt loam, silty clay loam, or silty clay
Redoximorphic Features--iron depletions in shades of white or gray and masses of oxidized iron in shades of red, brown, yellow, or olive
BC horizon (if it occurs):
Color--hue of 2.5YR to 10YR, value of 4 to 8, chroma of 3 to 8
Texture--sandy clay loam, sandy clay, clay, clay loam, silt loam, silty clay loam, or silty clay
Redoximorphic Features--iron depletions in shade of white or gray and masses of oxidized iron in shades of red, brown, yellow, or olive
BCg horizon (if it occurs):
Color--hue of 2.5YR to 10YR, value of 4 to 8, chroma of 1 or 2, or is neutral with value of 4 to 7
Texture--sandy clay loam, sandy clay, clay, clay loam, silt loam, silty clay loam, or silty clay
Redoximorphic Features--iron depletions in shades of white or gray and masses of oxidized iron in shades of red, brown, yellow, or olive
C horizon (if it occurs):
Color--hue of 2.5YR to 10YR, value of 2 to 7, chroma of 3 to 8
Texture--ranges from loamy sand to clay
Redoximorphic Features--iron depletions in shades of white or gray and masses of oxidized iron in shades of red, brown, yellow, or olive
Cg horizon:
Color--hue of 2.5YR to 10YR, value of 3 to 7, chroma of 1 or 2 or is neutral with value of 2 to 7
Texture--ranges from loamy sand to clay
Redoximorphic Features--iron depletions in shades of white or gray and masses of oxidized iron in shades of red, brown, yellow, or olive
COMPETING SERIES:
Viburnum soils--formed in thin loess underlain by fine-textured material that contain fragments of chert
GEOGRAPHIC SETTING:
Landscape: Northern Atlantic Coastal Plain
Landform: Low interfluve, gentle hill, and slight depression
Hillslope Profile Position: Low summits, backslopes, and footslope
Geomorphic Component: Base slope
Parent Material: Silty and clayey eolian deposits and/or fluviomarine deposits
Slope: 0 to 15 percent
Elevation: 25 to 150 feet
Frost Free Period: 180 to 215 days
Mean Annual Air Temperature: 50 to 57 degrees F.
Mean Annual Precipitation: 42 to 48 inches
GEOGRAPHICALLY ASSOCIATED SOILS:
Hambrook soils--have a seasonal high water table at a depth of 48 to 72 inches (well drained) and a fine-loamy particle-size control section; on higher-lying ridges and hill slopes
Muttontown soils--have a coarse-loamy particle-size control section; on lower-lying positions
Sassafras soils--are well drained with a fine-loamy particle-size control section; on higher-lying ridges and hill slopes
Russett soils--have a fine-loamy particle-size control section; on similar landforms
Trussum soils--have a seasonally high water table at a depth of less than 12 inches (poorly drained); on lower-lying positions
Woodstown soils--have a fine-loamy particle-size control section; on similar landforms
DRAINAGE AND PERMEABILITY:
Depth Class: Very deep (greater than 72 inches) to bedrock
Drainage class (Agricultural): Moderately well drained
Internal Free Water Occurrence: Moderately deep (20 to 40 inches) and common (present 3 to 6 months)
Flooding Frequency and Duration: None
Ponding Frequency and Duration: None
Index Surface Runoff: Medium to very high
Permeability: Slow
Shrink-Swell Potential: Low
USE AND VEGETATION:
Major Uses: More than one-half of the area is farmed and used for corn, soybeans, small grains, and pasture.
Vegetation: Mixed oaks, beech, hickory, yellow poplar, and sweetgum.
DISTRIBUTION AND EXTENT:
Distribution: The Northern Atlantic Coastal Plain of New Jersey and Maryland
Extent: Moderate
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Morgantown, West Virginia
SERIES ESTABLISHED: Salem County, New Jersey, 1998
REMARKS: Alloway soils were formally mapped as Keyport in Salem County, New Jersey. However, Keyport soils are Hapludults. 06/97--Revisions to the series description and classification were to update the particle-size class to fine and the cation-exchange activity class to semiactive. 02/02--Revisions to expand the color and textural RIC required for MLRA update projects in NJ, MD, and DE.
Diagnostic horizons and other soil characteristics recognized in this pedon are:
Ochric epipedon--the zone from the soil surface to a depth of 11 inches (Ap horizon)
Argillic horizon--the zone from 11 to 49 inches (Bt horizons).
Aquic conditions--the zone from about 24 inches to a depth of 80 inches is periodically saturated (endosaturation)
Other soil features identified with this pedon:
Paleudult feature--the zone from 0 to 60 inches (Ap, Bt horizons, and C horizon) does not have a decrease in clay content of 20 percent or more from the maximum clay content within this zone.
ADDITIONAL DATA: Characterization data is available from the Soil Survey Laboratory, Lincoln, NE, pedons: S92NJ-033-010; S92NJ-033-014
Database Information:
OSD Data Mapunit ID: To be developed
Typical Pedon Data Mapunit ID: 100018
OSD User Pedon ID: To be developed
TABULAR SERIES DATA:
SOI-5 Soil Name Slope Airtemp FrFr/Seas Precip Elevation
NJ0222 ALLOWAY 0- 15 50-57 180-215 42-48 25-150
SOI-5 FloodL FloodH Watertable Kind Months Bedrock Hardness
NJ0222 NONE 1.5-3.5 APPARENT JAN-APR >72 ---
SOI-5 Depth Texture 3-Inch No-10 Clay% -CEC-
NJ0222 0-11 SL 0- 0 85-100 5-20 0- 8
NJ0222 0-11 L 0- 0 85-100 10-26 0- 8
NJ0222 0-11 SIL 0- 0 85-100 15-26 0- 8
NJ0222 11-72 SICL SCL C 0- 0 85-100 25-70 0- 28
SOI-5 Depth -pH- O.M. Salin Permeab Shnk-Swll
NJ0222 0-11 3.5- 5.5 0.-1. 0- 2 2.0- 6.0 LOW
NJ0222 0-11 3.5- 5.5 0.-1. 0- 2 0.2- 2.0 LOW
NJ0222 0-11 3.5- 5.5 0.-1. 0- 2 0.06- 0.6 LOW
NJ0222 11-72 3.5- 5.5 0.-0. 0- 2 0.06- 0.2 LOW
National Cooperative Soil Survey
U.S.A.