LOCATION HENLOPEN DE
Established Series
PSK/Rev. JWB
11/2015
HENLOPEN SERIES
MLRA(s): 153C (Mid-Atlantic Coastal Plain), 153D (Northern Tidewater Area)
Depth Class: Very deep
Drainage Class (Agricultural): Somewhat excessively drained
Saturated Hydraulic Conductivity: High or very high
Landscape: Coastal Plain; peninsula
Parent Material: Sandy eolian and loamy (fluviomarine) marine deposits
Slope: 0 to 5 percent
Mean Annual Temperature (type location): 13 degrees C. (56 degrees F.)
Mean Annual Precipitation (type location): 1143 mm (45 inches)
TAXONOMIC CLASS: Sandy, siliceous, mesic Lamellic Paleudults
TYPICAL PEDON: Henlopen loamy sand (in an area of Henlopen loamy sand, 0 to 2 percent slopes), in a cultivated field. (Colors are for moist soil unless otherwise indicated.)
Ap--0 to 25 cm (0 to 10 inches); brown (10YR 4/3) loamy sand, yellowish brown (10YR 5/4) dry; weak medium subangular blocky structure; very friable; nonsticky; nonplastic; many fine roots; few fine and medium tubular pores; very strongly acid; abrupt smooth boundary. (13 to 30 cm thick)
E--25 to 56 cm (10 to 22 inches); light yellowish brown (10YR 6/4) loamy sand; weak medium subangular blocky structure; very friable; nonsticky; nonplastic; common very fine and fine roots; few fine and medium tubular pores; slightly acid; gradual wavy boundary. (13 to 50 cm thick)
E and Bt--56 to 117 cm (22 to 46 inches); light yellowish brown (10YR 6/4) loamy sand; weak medium subangular blocky structure; very friable; nonsticky; nonplastic; few very fine and fine roots; few very fine and fine tubular pores (E part); few thin (less than 13 mm thick) yellowish brown (10YR 5/6) loamy sand lamellae (Bt part); 5 percent, by volume pebbles; moderately acid; gradual wavy boundary. (38 to 89 cm thick)
Bt--117 to 157 cm (46 to 62 inches); strong brown (7.5YR 5/6) sandy loam; weak medium and coarse subangular blocky structure; friable, slightly sticky; slightly plastic; common very fine and fine roots; very few distinct yellowish brown (10YR 5/6) clay bridging between sand grains; very few distinct yellowish brown (10YR 5/6) clay films in root channels and pores; 2 percent, by volume pebbles; strongly acid; gradual wavy boundary. (25 to 76 cm thick)
E and B't--157 to 203 cm (62 to 80 inches); pale yellow (2.5Y 7/4) and very pale brown (10YR 7/3) sand; single grain; loose; nonsticky; nonplastic; very few thin (less than 13 mm thick) brown (7.5YR 5/4) loamy sand lamellae; 6 percent, by volume pebbles; strongly acid. (25 to 76 cm thick)
TYPE LOCATION: Sussex County, Delaware; about 1.0 mile southwest of Millsboro; 50 feet west of Route 328A, about 0.25 mile northwest of the junction with Route 24, in a crop field. USGS Millsboro (DE) topographic quadrangle; lat. 38 degrees 34 minutes 58 seconds N. and long. 75 degrees 18 minutes 12 seconds W.; NAD 83.
RANGE IN CHARACTERISTICS:
Depth to base of Argillic horizon: Greater than 152 cm (60 inches)
Depth to Bedrock: Greater than 200 cm (79 inches)
Depth to Seasonal High Water Table: Greater than 203 cm (80 inches)
Thickness of Sandy Surface Layer: Greater than 100 cm (39 inches)
Rock Fragments: 2 to 10 percent, by volume in the subsoil and substratum; mostly pebbles
Soil Reaction: Extremely acid to strongly acid throughout the profile, unless limed
RANGE OF INDIVIDUAL HORIZONS:
Ap or A horizon:
Color--hue of 10YR or 2.5Y, value of 3 to 5, chroma of 3 or 4
Texture--sand or loamy sand
E horizon or EB horizon (if it occurs):
Color--hue of 7.5YR to 2.5Y, value of 5 or 6, chroma of 4 to 6
Texture--snad or loamy sand
E and Bt horizon:
Color--hue of 7.5YR to 2.5Y, value of 5 or 6, chroma of 4 to 6
Texture (E part)--sand or loamy sand
Texture (Bt part)--sand, loamy sand, or sandy loam
Bt horizon:
Color--hue of 7.5YR to 2.5Y, value of 5 or 6, chroma of 4 to 6
Texture--sandy loam, loam, or sandy clay loam
C horizon (if it occurs):
Color--hue of 10YR or 2.5Y, value of 6 or 7, chroma of 3 to 8
Texture--sand or loamy sand and may contain very thin lenses of finer textured materials
COMPETING SERIES:
Patapsco soils--have a seasonal high water table at a depth of 102 to 183 cm (40 to 72 inches) from the soil surface
GEOGRAPHIC SETTING:
Landscape: Coastal plain; peninsula
Landform: Ancient dunes and marine terraces
Hillslope Profile Position: Summits, shoulders, and backslopes
Geomorphic Component: Interfluves and treads
Elevation: 3 to 23 meters (10 to 75 feet) above mean sea level
Parent Material: Sandy eolian and loamy (fluviomarine) marine deposits
Slope: 0 to 5 percent
Mean Annual Air Temperature: 11 to 14 degrees C. (52 to 58 degrees F.)
Mean Annual Precipitation: 1067 to 1270 mm (42 to 50 inches)
Frost Free Period: 190 to 210 days
GEOGRAPHICALLY ASSOCIATED SOILS:
Evesboro soils--are sandy throughout and excessively drained; on similar landforms
Klej soils--have a seasonal high water table at a depth of 25 to 50 cm (10 to 20 inches) from the soil surface (moderately well drained); in lower-lying positions
Pepperbox soils--have a seasonal high water table at a depth of 50 to 102 cm (20 to 40 inches) from the soil surface (moderately well drained); in lower-lying positions
Runclint soils--have a seasonal high water table at a depth of 102 to 183 cm (40 to 72 inches) from the soil surface (excessively drained); on similar landforms
Fort Mott soils--have a seasonal high water table at a depth of greater than 183 cm (72 inches) from the soil surface and have sandy surface layers less than 100 cm (39 inches) thick
DRAINAGE AND SATURATED HYDRAULIC CONDUCTIVITY:
Drainage Class (Agricultural): Somewhat excessively drained
Internal Free Water Occurance: Very deep (greater than 1.5 m) and absent (not observed)
Flooding Frequency and Duration: None
Ponding Frequency and Duration: None
Index Surface Runoff: Negligible
Saturated Hydraulic Conductivity: High or very high
Permeability: Rapid
Shrink-swell Potential: Low
USE AND VEGETATION:
Major Uses: Commonly in woodland and cropland
Dominant Vegetation: Where cultivated--row crops including soybeans, corn, small grain, and vegetables
Where wooded--white oak (Quercus alba), sweet gum (Liquidambar stryaciflua), loblolly pine (Pinus taeda) and American holly (Ilex opaca)
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: RALEIGH, NORTH CAROLINA
Distribution: Coastal Plain of Maryland and Delaware
Extent: Small
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Morgantown, West Virginia
SERIES ESTABLISHED: Sussex County, Delaware, 2006.
REMARKS: This soil was formerly included in the Evesboro series.
Diagnostic horizons and soil characteristics recognized in this pedon:
Ochric epipedon--the zone from 0 to 25 cm (Ap horizon)
Argillic horizon--the zone from 117 to 157 cm (Bt horizon)
Other soil features identified with this pedon:
Paleudult feature--the clay content does not decrease more than 20 percent from the maximum within 150 cm of the surface
Series control section--the zone from 0 to 200 cm
Previous revisions: 11/2002-JAK
ADDITIONAL DATA:
Data Mapunit ID (type location): 483455
National Cooperative Soil Survey
U.S.A.