LOCATION GREEN LEVEL NCEstablished Series
TAXONOMIC CLASS: Fine, mixed, active, thermic Vertic Hapludults
TYPICAL PEDON: Green Level sandy loam on an upland ridge in the Triassic Basin, in a wooded site. (Colors are for moist soil.)
A--0 to 7 inches; yellowish brown (10YR 5/4) sandy loam; weak medium granular structure; friable; slightly sticky, slightly plastic; many fine and medium roots; extremely acid; abrupt smooth boundary. (1 to 10 inches thick)
E--7 to 10 inches; pale brown (10YR 6/3) sandy loam; weak medium granular structure; friable; slightly sticky, slightly plastic; common fine and medium roots; very strongly acid; abrupt smooth boundary. (0 to 10 inches thick)
BE--10 to 13 inches; brownish yellow (10YR 6/6) sandy loam; weak fine subangular blocky structure; friable; moderately sticky, moderately plastic; few fine roots; common fine distinct light brownish gray (10YR 6/2) iron depletions; extremely acid; clear smooth boundary. (0 to 8 inches thick)
Bt--13 to 26 inches; brownish yellow (10YR 6/8) clay; common medium distinct strong brown (7.5YR 5/8) mottles; weak medium subangular blocky structure; very firm; very sticky, very plastic; few fine roots; few faint clay films on faces of peds; common fine prominent light brownish gray (10YR 6/2) iron depletions; extremely acid; gradual smooth boundary.
Btss--26 to 33 inches; yellowish red (5YR 5/6) clay; weak medium subangular blocky structure; extremely firm; very sticky, very plastic; few fine roots; many distinct clay films on faces of peds; common nonintersecting slickensides; common fine prominent light brownish gray (10YR 6/2) iron depletions; common medium prominent red (10R 4/8) masses of iron accumulation; extremely acid; gradual smooth boundary.
Btssg--33 to 41 inches; light gray (2.5Y 7/1) clay; weak medium subangular blocky structure; extremely firm; very sticky, very plastic; few fine roots; many distinct clay films on faces of peds; common nonintersecting slickensides; common medium prominent red (2.5YR 4/8) and strong brown (7.5YR 5/8) masses of iron accumulation; extremely acid; gradual wavy boundary.
Btg--41 to 51 inches; light brownish gray (2.5Y 6/2) clay; weak medium subangular blocky structure; very firm; very sticky, very plastic; few fine roots; common distinct clay films on faces of peds; common medium prominent yellowish red (5YR 5/8) masses of iron accumulation; extremely acid; gradual wavy boundary. (Combined thickness of the Bt horizons is 20 to 50 inches)
BCg--51 to 65 inches; light brownish gray (2.5Y 6/2) clay loam; weak coarse subangular blocky structure; firm; moderately sticky, moderately plastic; extremely acid; gradual wavy boundary. (0 to 15 inches thick)
CB--65 to 73 inches; pale yellow (2.5Y 7/3) sandy loam saprolite; few medium prominent reddish yellow (7.5YR 6/8) lithochromic mottles; massive; friable; moderately sticky, moderately plastic; 10 percent by volume subrounded sandstone parachanners; extremely acid; gradual wavy boundary. (0 to 50 inches thick)
C1--73 to 89 inches; pink (7.5YR 7/3) sandy loam saprolite; few medium distinct reddish yellow (7.5YR 6/8) lithochromic mottles; massive; friable; slightly sticky, slightly plastic; extremely acid; gradual wavy boundary.
C2--89 to 97 inches; pink (7.5YR 7/4) sandy loam saprolite; few medium distinct reddish yellow (7.5YR 6/8) lithochromic mottles; massive; friable; slightly sticky, slightly plastic; extremely acid. (Combined thickness of the C horizons is 5 to 50 inches thick)
TYPE LOCATION: Wake County, North Carolina; about 5 miles west on US Highway 64 from the intersection of US Highway 1 south and US Highway 64 west in Raleigh; 2.7 miles north on Green Level Ch Road (SR 1700); 1 mile west on Green Level W Road (SR 1605); 0.7 mile north on White Oak Ch Road (SR 1606); 800 feet north along abandoned railroad grade; 55 feet west of railroad grade, in woods. USGS Green Level NC topographic quadrangle; lat. 35 degrees, 47 minutes, 11 seconds N and long. 78 degrees, 55 minutes, 21 seconds W. (NAD 83).
RANGE IN CHARACTERISTICS:
Solum Thickness: 30 to 60 inches or more
Depth to Bedrock: Greater than 60 inches
Depth to Seasonal High Water Table: 1.0 to 2.5 feet; perched
Fragments: 0 to 15 percent, by volume rounded and subrounded quartz and pararock fragments throughout the solum
Soil Reaction: Extremely acid to strongly acid throughout, except where surface layers have been limed
Exchangeable Aluminum: 10 to 35 meq/100g in the Bt, Btss, and Btssg horizons
RANGE OF INDIVIDUAL HORIZONS:
A horizon:
Color--hue of 7.5YR or 2.5Y, value of 4 to 6, and chroma of 2 to 4
Texture--sandy loam, loam, or fine sandy loam
E horizon:
Color--hue of 7.5YR to 2.5Y, value of 4 to 6, and chroma of 3 to 6
Texture--sandy loam, loam, fine sandy loam, or silt loam
BE horizon:
Color--hue of 7.5YR to 2.5Y, value of 3 to 6, and chroma of 3 to 8
Texture--sandy loam, loam, fine sandy loam, or silt loam
Redoximorphic features--iron depletions in shades of gray or yellow may be present
Bt horizon:
Color--hue of 2.5YR to 2.5Y, value of 4 to 6, and chroma of 3 to 8
Texture--clay, sandy clay, or silty clay
Redoximorphic features--iron masses in shades of red, yellow, or brown and iron depletions in shades of gray or yellow may be present
Btss horizon:
Color--hue of 2.5YR to 10YR, value of 4 to 7, and chroma of 3 to 8
Texture--sandy clay, clay, or silty clay
Redoximorphic features: iron masses in shades of red, yellow, or brown and iron depletions in shades of gray, yellow, or brown are in most pedons
Btssg horizon:
Color--hue of 10YR to 2.5Y, or neutral, value of 4 to 7, and chroma of 0 to 2
Texture--clay, silty clay, or sandy clay
Redoximorphic features--iron masses in shades of red, yellow, or brown
Btg horizon:
Color--hue of 10YR to 2.5Y, or neutral, value of 4 to 7, and chroma of 0 to 2
Texture--clay, silty clay, or sandy clay
Redoximorphic features--iron masses in shades of red, yellow, or brown
BCg horizon:
Color--hue of 2.5YR to 2.5Y, or neutral, value of 3 to 7, and chroma of 0 to 2
Texture--sandy clay loam, silt loam, silty clay loam, clay loam, loam, or sandy loam
Redoximorphic features--iron masses in shades of red, yellow, or brown are in most pedons
CB horizon:
Color--hue of 2.5YR to 2.5Y, value of 3 to 7, and chroma of 3 to 8
Texture--sandy clay loam, silt loam, silty clay loam, clay loam, loam, or sandy loam saprolite
Mottles--lithochromic mottles in shades of red, yellow, brown, or gray are in most pedons
C horizon:
Color--hue of 2.5YR to 2.5Y, value of 3 to 6, and chroma of 3 to 8
Texture--variable, commonly sandy loam saprolite
Mottles--lithochromic mottles in shades of red, yellow, brown, or gray are in most pedons
COMPETING SERIES:
There are no competing series.
Similar soils:
Peawick soils--formed from clayey fluvial sediments on stream terraces of the Coastal Plain and piedmont.
Sacul soils--formed in acid loamy and clayey marine sediments and are on uplands of the Coastal Plain.
White Store soils--have a depth to paralithic contact of 40 to 60 inches and have a base saturation of greater than 35 percent above the contact.
Creedmoor soils--do not have Btss horizons and have a high shrink-swell potential
GEOGRAPHIC SETTING:
Landscape: Triassic Basins of the thermic Southern Piedmont
Landform: Interstream divides, ridges, and side slopes
Parent Material: Residuum weathered from Triassic sandstone, mudstone, siltstone, shale, and conglomerate
Mean Annual Air Temperature: 60 degrees F
Mean Annual Precipitation: 47 inches
Frost Free Period: 180 to 260 days
GEOGRAPHICALLY ASSOCIATED SOILS:
In addition to the similar
White Store and
Creedmoor soils they are:
Mayodan soils--are well drained and moderately permeable soils with a moderate shrink-swell potential and are intermingled on slightly higher landscape positions
Carbonton soils--are moderately deep, have a moderate shrink-swell potential, lack redoximorphic depletions in the upper Bt and have a base saturation greater than 35 percent above the paralithic contact and are intermingled in some areas
Brickhaven soils--are deep, have a moderate shrink-swell potential, are moderately well drained, lack redoximorphic depletions in the upper Bt and have a base saturation greater than 35 percent above the paralithic contact and are intermingled in some areas
Peakin soils--lack redoximorphic depletions in the upper Bt and are slowly permeable soils with a moderate shrink-swell potential
Pinoka soils--are well drained, moderately deep, have a low shrink-swell potential, and have a fine-loamy particle size class and are on higher ridges
Polkton soils--have a depth to paralithic contact of 20 to 40 inches and have a base saturation of greater than 35 percent above the contact
DRAINAGE AND PERMEABILITY:
Agricultural Drainage Class: Somewhat poorly drained
Surface Runoff: Moderate
Permeability of Restrictive Layer (upper 60 inches): Very slow
USE AND VEGETATION:
Major Uses: mixed hardwood and pine forest
Dominant Vegetation: Where forested--loblolly pine, red maple, sweet gum, black gum, water oak, winged elm, and willow oak.
DISTRIBUTION AND EXTENT:
Distribution: Thermic region of Piedmont in the Triassic Basin of North Carolina and possibly Virginia
Extent: Small
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Raleigh, North Carolina
SERIES ESTABLISHED: Chatham County, North Carolina, 2005
REMARKS: Green Level soils were previously mapped as White Store soils. White Store soils have a depth to paralithic contact of 40 to 60 inches and have a base saturation of greater than 35 percent above the contact. In addition, White Store soils do not have redoximorphic features within 24 inches of the top of the argillic horizon. The 11/2005 revision changed the type location from Chatham County, NC to Wake County, NC and changed the classification from fine, mixed, active, thermic Aquic Hapludults.
Diagnostic horizons and soil characteristics recognized in this pedon are:
Ochric epipedon--the zone from the soil surface to a depth of 10 inches (A and E horizon)
Argillic horizon--the zone from 13 to 51 inches (Bt, Btss, Btssg, and Btg horizons)
Slickensides--present in the zone from 24 to 41 inches
Series control section--the zone from 0 to 60 inches
ADDITIONAL DATA:
Reference particle-size data and laboratory data from typical pedon and supporting pedons (S01NC-183-001-01-011 and S01NC-183-002-01-010) is available from the NSSL, Lincoln, Nebraska.
Data Map Unit ID:
TABULAR SERIES DATA:
Soil Name Slope Airtemp FrFr/Seas Precip Elevation Green Level 0-15 57-65 180-260 40-55 150-450FloodL FloodH Watertable Kind Months Bedrock Hardness NONE 1.0-2.5 Perched NOV-APR 60-60
Depth Texture 3-Inch No-10 Clay% -CEC- 0-13 SL FSL L 0-0 95-100 7-20 - 13-26 C SIC SC 0-0 95-100 35-60 - 26-51 C SIC SC 0-0 95-100 35-60 - 51-65 CL SCL SICL 0-0 95-100 27-35 - 65-97 SL L FSL 0-0 95-100 7-20 -
Depth -pH- O.M. Salin Permeab Shnk-Swll- 0-13 3.6-5.5 1-3 0-0 0.6-2.0 LOW 13-26 3.6-5.5 .5-1 0-0 0.06-0.2 HIGH 26-51 3.6-5.5 .5-1 0-0 0.0015-0.2 VERY HIGH 51-65 3.6-5.5 .5-1 0-0 0.06-0.2 MODERATE 65-97 3.6-5.5 .5-1 0-0 0.6-2.0 LOW