LOCATION LELAVALE TX

Established Series
REL-JKW-RM
07/2014

LELAVALE SERIES

The Lelavale series consists of very deep, very poorly drained soils that formed in loamy fluviomarine deposits of Pleistocene age. These are depressional soils on nearly level coastal plains. Slope ranges from 0 to 1 percent slope but mainly less than 0.5 percent. Mean annual temperature is about 20 degrees C (68 degrees F), and mean annual precipitation is about 1350 mm (53 in).

TAXONOMIC CLASS: Fine-loamy, siliceous, semiactive, thermic Typic Glossaqualfs

TYPICAL PEDON: Lelavale loam--woodland. (Colors are for moist soil unless otherwise stated.)

Ag--0 to 10 cm, (0 to 4 in); dark grayish brown (10YR 4/2) loam; moderate medium and coarse prismatic structure parting to moderate, medium, and fine granular; slightly hard; friable; common fine, medium, and few coarse roots; common fine and medium interstitial and tubular pores; few crawfish krotovina filled with grayish brown (10YR 5/2) silt loam; 3 percent fine distinct brown (7.5YR 4/3) iron-manganese concentrations with diffuse boundaries along roots and pores; extremely acid; abrupt smooth boundary. (8 to 20 cm [3 to 8 in] thick)

Eg--10 to 31 cm (4 to 12 in); grayish brown (10YR 5/2) silt loam; moderate medium and coarse prismatic structure parting to moderate medium subangular blocky;slightly hard; friable; few very fine and fine roots; common fine and medium tubular pores; few crawfish krotovina filled with grayish brown (10YR 5/2) silt loam; 2 percent fine prominent strong brown (7.5YR 5/6) iron concentrations with clear boundaries on surfaces of peds; 4 percent fine prominent yellow (10YR 7/6)iron concentrations with diffuse boundaries on surfaces of peds; 3 percent fine distinct brown (7.5YR 4/3) iron-manganese concentrations with diffuse boundaries along roots and pores; extremely acid; clear smooth boundary. (15 to 54 cm [6 to 22 in] thick)

Btg/E1--31 to 41cm (12 to 16 in); 60 percent gray (10YR 6/1) loam; 40 percent light brownish gray (10YR 6/2) (Eg); moderate medium prismatic structure parting to moderate medium subangular blocky; hard; firm; few very fine and fine roots; few fine and medium tubular pores; few crawfish krotovina filled with gray (10YR 6/1) silt loam; common faint gray (10YR 6/1) clay films on surfaces of peds; 5 percent fine prominent yellowish red (5YR 5/6)iron concentrations with clear boundaries on surfaces of peds; 10 percent fine and medium prominent yellow (10YR 7/6) iron concentrations with diffuse boundaries on surfaces of peds; the Eg part of the horizon consists of albic material 1/4 to 1/2 in wide and is a clay depletion due to aquic conditions; extremely acid; clear wavy boundary.

Btg/E2--41 to 79 cm (16 to 31 in); 75 percent gray (10YR 6/1) loam; 25 percent light brownish gray (10YR 6/2) (Eg); moderate medium prismatic structure parting to moderate medium subangular blocky; hard; firm; few very fine and fine roots; few fine tubular pores; few crawfish krotovina; common faint gray (10YR 6/1) clay films on surfaces of peds; 20 percent medium and coarse prominent brownish yellow (10YR 6/6) iron concentrations with diffuse boundaries on surfaces of peds; 5 percent fine prominent yellowish red (5YR 5/6) iron concentrations with clear boundaries on surfaces of peds; 10 percent fine and medium strong brown prominent (7.5YR 5/8) iron concentrations with clear boundaries on surfaces of peds; 5 percent fine prominent red (2.5YR 4/6) iron concentrations with clear boundaries on surfaces of peds; the Eg part of the horizon consists of albic material 1/8 to 1/2 inch wide and is a clay depletion due to aquic conditions; extremely acid; gradual wavy boundary.

Btg/E3--79 to 104 cm (31 to 41 in); 85 percent brownish yellow (10YR 6/6) loam; 15 percent light brownish gray (10YR 6/2) (Eg); moderate medium prismatic structure parting to moderate fine and medium subangular blocky; hard; firm; few very fine roots; few very fine tubular pores; common faint gray (10YR 6/1) clay films on surfaces of peds; 25 percent fine and medium prominent gray (10YR 6/1) iron depletions with diffuse boundaries in Bt; 5 percent fine prominent yellowish red (5YR 5/8) iron concentrations with clear boundaries on surfaces of peds; 5 percent fine and medium prominent red (2.5YR 4/6) iron concentrations with sharp boundaries on surfaces of peds; the Eg part of the horizon consists of albic material 1/8 to 1/2 inch wide and is a clay depletion due to aquic conditions; extremely acid; gradual wavy boundary. (combined thickness of the Btg/Eg horizons is 31 to 82 [12 to 32 in])

Btg--104 to 125 cm (41 to 49 in); 45 percent brownish yellow (10YR 6/8) and 25 percent yellowish red (5YR 5/8) and 20 percent red (2.5YR 4/8) clay; moderate medium prismatic structure parting to strong fine and medium subangular blocky; few very fine roots; few fine tubular pores; few fine red (10R 4/6) plinthite segregations; common distinct red (2.5YR 4/6) clay films on surfaces of peds; 10 percent medium prominent gray and light brownish gray (10YR 6/1, 6/2) iron depletions with clear boundaries on surfaces of peds; 10 percent of the horizon is light gray (10YR 7/1) interfingering of albic material 1/8 to 1/4 inch wide and is a clay depletion due to aquic conditions; extremely acid; gradual wavy boundary. (33 to 79 cm [13 to 31 in] thick)

B'tg/E1--125 to 145 cm (49 to 57 in); 60 percent light gray (2.5Y 7/2) clay loam; 20 percent light gray (10YR 7/2) (E'g); moderate medium prismatic structure parting with moderate medium subangular blocky; fine very fine roots; few very fine tubular pores; few fine red (10YR 4/6) plinthite segregations; common distinct gray (10YR 6/1) clay films on surfaces of peds; few rounded black (10YR 2/1) non-manganese concretions; 10 percent fine and medium prominent brownish yellow (10YR 6/6) iron concentrations with clear boundaries on surfaces of peds; 10 percent fine and medium prominent yellowish red (5YR 5/8) iron concentrations with clear boundaries on surfaces of peds; 5 percent fine prominent red (2.5YR 4/6) iron concentrations with sharp boundaries on surfaces of peds; 20 percent of the horizon is strong brown (7.5YR 4/6) Bt; the Eg part of the horizon consists of interfingering of albic material 1/8 to 1/2 inch wide and is a clay depletion due to aquic conditions; extremely acid; gradual wavy boundary.

B'tg/E2--145 to 203 cm (57 to 80 in); 50 percent light gray (2.5Y 7/1) clay loam; 20 percent light gray (10YR 7/2) (E'g); moderate medium prismatic structure moderate medium angular blocky; few very fine roots; few very fine tubular pores; common distinct gray (10YR 6/1) clay films on surfaces of peds; 15 percent fine and medium prominent yellowish red (5YR 5/8) iron concentrations with clear boundaries on surfaces of peds; 10 percent fine and medium prominent red (2.5YR 4/6) iron concentrations with sharp boundaries on surfaces of peds; 30 percent of the horizon is yellow (10YR 7/6) Bt; extremely acid; gradual wavy boundary. (combined thickness of the B'tg/Eg horizons is 30 to 89 cm [12 to 35 in])

TYPE LOCATION: Hardin County, Texas; from the intersection of Farm Road 787 and Farm Road 2798 in Votaw; 2 miles north on Farm Road 943 to private road; 1.8 miles east on private road; 500 feet south in depression in woodland. Latitude: 30 degrees 27 minutes 9.68 seconds N; Longitude: 94 degrees 38 minutes 51.50 seconds W; Votaw topographic quad; NAD83

RANGE IN CHARACTERISTICS:
Soil Moisture: An aquic soil moisture regime
Mean annual soil temperature: 20.6 to 21.7 degrees C (69 to 71 degrees F)
Particle-size control section (weighted average)
Clay content: 20 to 30 percent
CEC/clay ratio: 0.4 to 0.5

A horizon
Hue: 10YR
Value: 3 to 6
Chroma: 1 or 2
Texture: loam
Redox concentrations: amount-2 to 5 percent, color-shades of brown
Reaction: extremely acid or very strongly acid

E horizon
Hue: 10YR or 2.5YR
Value: 5 to 7
Chroma: 1 or 2
Texture: silt loam, loam or very fine sandy loam
Redox concentrations: amount-2 to 10 percent, color-shades of yellow or brown
Reaction: extremely acid or very strongly acid

Btg/E horizons
(Bt part)
Hue: 10YR or 2.5Y
Value: 5 to 7
(E part)
Hue: 10YR or 2.5Y
Value: 5 to 7
Chroma: 1 or 2
Texture: loam, sandy clay loam or clay loam
Redox concentrations: amount-2 to 25 percent, color-shades of yellow, red, or brown
Reaction: extremely acid or very strongly acid

Btg horizons
Hue: 10YR or 2.5Y
Value: 5 to 7
Chroma: 1 or 2
Texture: sandy clay loam, clay loam or clay
Redox concentrations: amount-3 to 25 percent, color-shades of yellow, red, or brown
Redox depletions: amount-2 to 10 percent; color-shades of gray, blue or green.
Ironstone nodules: 0 to 1 percent
Reaction: extremely acid or very strongly acid

B'tg/E horizons
(Bt part)
Hue: 10YR or 2.5Y
Value: 5 to 7
(E part)
Hue: 10YR
Value: 5 to 7
Chroma: 1 or 2
Texture: sandy clay loam, clay loam or clay
Redox concentrations: amount-3 to 30 percent, color-shades of yellow, red, or brown
Redox depletions: amount-2 to 10 percent; color-shades of gray, blue or green.
Ironstone nodules: 0 to 1 percent
Reaction: extremely acid or very strongly acid

COMPETING SERIES: These are Colita (TX), Mollville (TX), Vimville (MS), and Waller (TX),series. Similar series are the Camptown (TX), Caneyhead (TX), Guyton (LA), and Mollco (TX).
Colitia soils are deep to a paralithic contact of tuffaceous shale and are somewhat poorly drained.
Mollville, Vimville and Waller soils are poorly drained.
Camptown, Caneyhead, and Guyton soils are in a fine-silty particle-size family.
Mollco soils are in a superactive family.

GEOGRAPHIC SETTING:
Parent material: loamy fluviomarine deposits of the Lissie Formation of Pleistocene age
Landscape: coastal plains
Landform: closed depression
Slope: 0 to 1 percent slope but mainly less than 0.5 percent.
Mean annual air temperature range: 19.5 to 21.7 degrees C (67 to 69 degrees F)
Mean annual precipitation range: 1219 to 1473 cm (48 to 58 in)
Precipitation Pattern: Precipitation falls evenly throughout the year with slight peaks during the late spring and fall months.
Frost-free period: 240 to 300 days
Elevation: 22.9 to 46 m (75 to 150 ft)
Thornthwaite annual P-E indices: 68 to 80

GEOGRAPHICALLY ASSOCIATED SOILS: These are the Dallardsville (TX), Kirbyville (TX), and Kountze (TX).

Dallardsville soils; are moderately well drained; on mounds in complex with other soils.
Kirbyville soils: have more than 18 percent clay in the particle-size control section; on a higher landform.
Kountze soils: are moderately well drained; on a higher landform
Plank soils: are poorly drained; on relict meander belt channels.
Sorter soils: are poorly drained; on relict meander belt channels.

DRAINAGE AND PERMEABILITY: Lelavale soils are very poorly drained. Runoff is negligible. Permeability is slow. These soils remain ponded from October to June in most years.

USE AND VEGETATION: Used primarily for wildlife habitat. Native vegetation includes black gum, water oak, red maple and sweetbay.

DISTRIBUTION AND EXTENT: The Western Gulf Coast Flatwoods (MLRA 152B) of southeast Texas and possibly Louisiana. The series is of minor extent.

MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Temple, Texas.

SERIES ESTABLISHED: Hardin County, Texas; 1998.

REMARKS: These soils were formerly included with the Waller series, mainly in the depressional unit. The series was revised during the recorrelation of MLRA 152B

Diagnostic horizons and features recognized in this pedon are:

Ochric epipedon- 0 to 10 cm (0 to 4 in) (A horizon)

Glossic horizon- 31 to 104 cm (12 to 41 in) (Btg/E horizons)

Argillic horizon- 10 to 203 cm (4 to 80 in) (Bt/E, and Btg/E horizons)

Aquic feature- These soils have aquic conditions for some time from October to June in normal years.

ADDITIONAL DATA: Data pending from the National Soil Survey Lab on sample (S12TX1991041) from type location in Hardin County, TX.

Soil Interpretation Record Number: TX0926

Taxonomic Version: Keys to Soil Taxonomy, Eleventh edition, 2010.

National Cooperative Soil Survey
U.S.A.