LOCATION RUNCLINT MD+DE
Established Series
JEB/Rev. JEB-DHK
12/2021
RUNCLINT SERIES
MLRA(s): 153C, 153D
Depth Class: Very deep
Drainage Class (Agricultural): Excessively drained
Internal Free Water Occurrence: Deep (1.0 to 1.8 meters) and common (present 3 to 6 months)
Index Surface Runoff: Negligible
Saturated Hydraulic Conductivity: High in the subsoil and moderately high to very high in the substratum Permeability (obsolete): Rapid in the subsoil and moderately rapid to very rapid in the substratum
Physiographic Region: Coastal Plain
Landscape: Upland
Landform (type location): Flat, knoll, fluviomarine terrace, ancient dune
Parent Material: Sandy eolian deposits and/or fluviomarine sediments
Slope: 0 to 5 percent
Elevation (type location): 6 meters (20 feet)
Frost Free Period (type location): 205 days
Mean Annual Air Temperature (type location): 13 degrees C (55 degrees F.)
Mean Annual Precipitation (type location): 1143 mm (45 inches)
TAXONOMIC CLASS: Mesic, coated Lamellic Quartzipsamments
TYPICAL PEDON: Runclint sand, on a smooth 2 percent slope, in a forested area. (Colors are for moist soil unless otherwise noted.)
Oi--0 to 5 cm (0 to 2 inches); slightly decomposed loblolly pine needles and twigs; abrupt smooth boundary. (0 to 5 cm)
Ap--5 to 28 cm (2 to 11 inches); dark brown (10YR 3/3) sand; massive; very friable; common fine and medium roots; many very fine, and few fine irregular pores; very strongly acid; abrupt wavy boundary. (15 to 28 cm thick)
E--28 to 61 cm (11 to 24 inches); yellowish brown (10YR 5/6) sand; massive; very friable; few medium and coarse roots; many very fine irregular pores; strongly acid; clear wavy boundary. (28 to 43 cm thick)
B/E--61 to 107 cm (24 to 42 inches); yellowish red (5YR 5/8) (B) and light yellowish brown (10YR 6/4) (E) sand; common medium distinct brownish yellow (10YR 6/6) mottles; massive; very friable; few fine, medium and coarse roots; few fine and medium irregular pores; common medium rounded dark yellowish brown (10YR 3/4) soft accumulations of iron and manganese; very strongly acid; clear wavy boundary. (28 to 58 cm thick)
E--107 to 124 cm (42 to 49 inches); variegated colors of light yellowish brown (10YR 6/4) and light gray (10YR 7/2) sand; massive; very friable; common medium rounded reddish brown (5YR 4/4) soft accumulations of iron and manganese; very strongly acid; clear irregular boundary. (13 to 23 cm thick)
E & Bt--124 to 155 cm (49 to 61 inches); light yellowish brown (10YR 6/4) sand (E); single grain; loose; few yellowish brown (10YR 5/6) loamy sand lamellae 1 to 3 mm thick (Bt); weak thin platy structure; very friable; common faint continuous clay bridging between sand grains in lamellae; individual lamellae are discontinuous in length within the pedon; common medium rounded dark reddish brown (2.5YR 3/4) soft accumulations of iron and manganese; 5 percent pebbles; very strongly acid; clear irregular boundary. (15 to 30 cm thick)
C--155 to 188 cm (61 to 74 inches); pale brown (10YR 6/3) loamy coarse sand; massive; friable; common medium distinct light gray (10YR 7/1) irregular iron depletions throughout; 5 percent pebbles; very strongly acid.
TYPE LOCATION: Dorchester County, Maryland; 2.25 miles east-southeast of Hurlock, 0.50 miles east of the Marshy Hope Creek; approximately 60 feet south of Wesley road into woods; Latitude 38 degrees 37 minutes 1.04 seconds north, Longitude 75 degrees 48 minutes 46.18 seconds west, NAD 83.
RANGE IN CHARACTERISTICS:
Depth to Bedrock: Greater than 183 cm (72 inches)
Depth to Seasonal High Water Table: 102 to 183 cm (40 to 72 inches)
Rock Fragments: 0 to 20 percent in the subsoil and 0 to 30 percent in the substratum, mostly rounded quartzose gravel.
Soil Reaction: Extremely acid to strongly acid, throughout the profile, unless limed.
Soil Moisture: Soil moisture control section is not dry for more than 25 consecutive days in the 120 days following the summer solstice
RANGE OF INDIVIDUAL HORIZONS:
O horizon:
Color--hue of 5YR to 10YR, value of 2 to 4, chroma of 1 to 3
Type of organic soil material--highly decomposed to slightly decomposed plant material
A or Ap horizon:
Color--hue of 7.5YR or 10YR, value of 3 to 6, chroma of 1 to 4
Texture (fine-earth fraction)--sand or loamy sand
E horizon:
Color--hue of 10YR or 2.5Y, value of 5 to 7, chroma of 2 to 6
Texture (fine-earth fraction)--sand or loamy sand
Bw or BE horizon (if it occurs):
Color--hue of 5YR to 10YR, value of 4 to 6, chroma of 4 to 8
Texture (fine-earth fraction)--sand or loamy sand
E and Bt horizon, E part:
Color--hue of 7.5YR to 2.5Y, value of 4 to 7, chroma of 2 to 6
Texture (fine-earth fraction)--sand or loamy sand
E and Bt horizon, Bt part:
Color--hue of 7.5YR to 10YR, value of 4 to 6, chroma of 4 to 6
Texture (fine-earth fraction)--loamy sand or sandy loam
C horizon:
Color--hue of 7.5YR to 2.5Y, value of 4 to 7, chroma of 1 to 8
Texture (fine-earth fraction)--sand, fine sand, loamy coarse sand or loamy sand Redoximorphic Features--iron accumulations in shade of red, yellow, or brown and iron depletions in shades of brown, yellow, olive, or gray
2C horizon (if it occurs):
Color--hue of 7.5YR to 5Y, value of 4 to 8, chroma of 1 to 6
Texture (fine-earth fraction)--sandy loam to silt loam
Redoximorphic Features--iron accumulations in shade of red, yellow, or brown and iron depletions in shades of brown, yellow, olive, or gray
COMPETING SERIES:
Evesboro soils--do not have a water table or redoximorphic features above 183 cm (72 inches).
GEOGRAPHIC SETTING:
Landscape: Upland
Landform: Flat, knoll, fluviomarine terrace, ancient dune
Elevation: 3 to 137 meters (10 to 450 feet)
Parent Material: Sandy eolian deposits and/or fluviomarine sediments
Mean Annual Air Temperature: 11 to 14 degrees C. (52 to 58 degrees F)
Mean Annual Precipitation: 1067 to 1219 mm (42 to 48 inches)
Frost Free Period: 200 to 210 days Geologic Formation: Predominantly Parsonsburg Sand, Beaverdam Sand
GEOGRAPHICALLY ASSOCIATED SOILS:
Downer soils--have a coarse-loamy particle-size control section and an argillic horizon, on similar landforms
Fort Mott soils--have a loamy particle-size control section, an argillic horizon, and sandy layers less than 40 inches thick, on similar landforms
Galestown soils--are somewhat excessively drained and have an argillic horizon, on similar landforms
Galloway soils--moderately well drained with a seasonal high water table at 20 to 40 inches
Hammonton soils--moderately well drained with a seasonal high water table at 20 to 40 inches
Klej soils--somewhat poorly drained with a seasonal high water table at 12 to 24 inches, on lower-lying positions
DRAINAGE AND SATURATED HYDRAULIC CONDUCTIVITY: Drainage Class (Agricultural): Excessively drained Saturated Hydraulic Conductivity (Permeability obsolete): High in the subsoil and moderately high to very high in the substratum. Index Surface Runoff: Negligible Internal Free Water Occurrence: Deep (1.0 to 1.8 meters) and common (present 3 to 6 months)
USE AND VEGETATION:
Major uses: Woodland and cropland
Native vegetation: Virginia Pine, black oak, white oak, hickory, post oak and scarlet oak Managed woodland vegetation: Loblolly pine Understory species: Sassafras, dogwood, greenbriar, American holly, and lowbush blueberry
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Morgantown, West Virginia
DISTRIBUTION AND EXTENT: Coastal Plain of Maryland and Delaware. The series is of moderate extent.
SERIES ESTABLISHED: Dorchester County, Maryland, 1992.
REMARKS:
1. This soil was formerly included in the Evesboro series.
2. Diagnostic horizons and features recognized in this pedon are:
a. Ochric epipedon - The zone from the surface of the soil to a depth of 28 cm (11 inches) (Oi and Ap horizons).
b. Redoximorphic features Mottles due to wetness in the zone between 155 to 188 cm (61 and 74 inches) (C horizon). c. Lamellae: thin bands of yellowish brown (10YR 5/6) loamy sand in the zone from 124 to 155 cm (49 to 61 inches) (E & Bt horizon). 3. This soil has a Bw horizon because of high chroma and reddish hue (5YR 5/8) from 61 to 107 cm (24 to 42 inches). It is not a cambic horizon because the texture is not very fine sand, loamy very fine sand, or finer than these textures. 4. The 11/2005 revision reclassifies Runclint from mesic, coated Typic Quartzipsamments to mesic, coated Lamellic Quartzipsamments per 9th Edition of the Keys to Soil Taxonomy, 2003. 5. Some pedons in wooded areas may have a micro sequence of A-E-Bh horizons (micro-podzol). Total thickness of the A-E-Bh horizon sequence is less than 12.5 cm (5 inches) and individual horizons are less than 2.5 cm (1 inch) thick.
ADDITIONAL DATA: This series sampled as S85MD-019-009; S97MD-045-017. Data can be obtained from NSSL.
SOIL INTERPRETATION RECORD: MD0141
REVISED: 11/2002-JEB, WDC, JAK; 11/2005-JEB, DHK
TABULAR SERIES DATA:
SOI-5 Soil Name Slope Airtemp FrFr/Seas Precip Elevation
MD0141 RUNCLINT 0- 5 52- 58 190-210 42- 48 5- 50
SOI-5 FloodL FloodH Watertable Kind Months Bedrock Hardness
MD0141 NONE 4.0-6.0 APPARENT JAN-MAY 60-60
SOI-5 Depth Texture 3-Inch No-10 Clay% -CEC-
MD0141 0-22 S 0- 0 70-100 1- 5 0.5-1.0
MD0141 0-22 LS 0- 0 70-100 4-10 0.5-1.0
MD0141 22-40 S LS 0- 0 70-100 1- 8 0.3-1.0
MD0141 40-59 S LS GR-S 0- 0 50-100 1- 8 0.7-1.0
MD0141 59-72 SR S SCL 0- 0 50-100 1-25 0.3-1.5
SOI-5 Depth -pH- O.M. Salin Permeab Shnk-Swll
MD0141 0-22 3.6- 5.5 .5-3. 0- 0 6.0- 20 LOW
MD0141 0-22 3.6- 5.5 .5-3. 0- 0 6.0- 20 LOW
MD0141 22-40 3.6- 5.5 0.-.5 0- 0 6.0- 20 LOW
MD0141 40-59 3.6- 5.5 0.-.5 0- 0 6.0- 20 LOW
MD0141 59-72 3.6- 5.5 0.-.5 0- 0 0.6- 2.0 LOW
National Cooperative Soil Survey
U.S.A.