LOCATION SPENCERVILLE OH+IN

Established Series
Rev. NHM-DNM-TJE
11/2021

SPENCERVILLE SERIES

The Spencerville series consists of very deep, moderately well drained soils formed in clayey and loamy recent alluvium. These soils are on flood plains. Slope ranges from 0 to 1 percent. Mean annual precipitation is about 1016 mm (40 inches), and mean annual temperature is about 11.1 degrees C (52 degrees F).

TAXONOMIC CLASS: Fine, mixed, superactive, mesic Fluvaquentic Hapludolls

TYPICAL PEDON: Spencerville silty clay loam, on a nearly level area in an abandoned field of reed canarygrass at an elevation of about 53 meters (830 feet) above MSL. (Colors are for moist soil unless otherwise stated.)

Ap--0 to 25 cm (10 inches); very dark gray (10YR 3/1) silty clay loam, gray (10YR 5/1) dry; weak coarse subangular blocky structure parting to moderate medium granular; friable; slightly acid; clear smooth boundary.

A--25 to 38 cm (10 to 15 inches); very dark grayish brown (10YR 3/2) silty clay loam, grayish brown (10YR 5/2) dry; moderate coarse subangular blocky structure; friable; many distinct very dark gray (10YR 3/1) organic stains on faces of peds; slightly acid; clear wavy boundary. [Combined thickness of the A horizon is 25 to 51 cm (10 to 20 inches).]

BA--38 to 53 cm (15 to 21 inches); dark grayish brown (10YR 4/2) silty clay loam; moderate fine subangular blocky structure; firm; many distinct very dark grayish brown (10YR 3/2) organic stains on faces of peds; common fine faint brown (10YR 5/3) masses of oxidized iron-manganese; neutral; clear wavy boundary.

Bw1--53 to 69 cm (21 to 27 inches); dark grayish brown (10YR 4/2) silty clay loam; weak medium prismatic structure parting to moderate medium subangular blocky; firm; common distinct very dark grayish brown (10YR 3/2) organic stains on faces of peds; common faint dark gray (10YR 4/1) iron depletions on faces of peds; common fine faint brown (10YR 5/3) and many medium distinct brown (7.5YR 4/4) masses of oxidized iron-manganese; neutral; clear wavy boundary.

Bw2--69 to 84 cm (27 to 33 inches); dark grayish brown (10YR 4/2) silty clay loam; moderate medium prismatic structure parting to moderate coarse subangular blocky; firm; many faint dark gray (10YR 4/1) iron depletions on faces of peds; many medium distinct brown (7.5YR 4/4) masses of oxidized iron-manganese and common medium prominent strong brown (7.5YR 4/6) masses of oxidized iron; neutral; clear wavy boundary.

Bg--84 to 122 cm (33 to 48 inches); gray (10YR 5/1) clay loam; moderate medium prismatic structure parting to moderate coarse subangular blocky; firm; common faint dark gray (10YR 4/1) iron depletions on faces of peds; many medium prominent yellowish brown (10YR 5/6) masses of oxidized iron; neutral; gradual wavy boundary. [Combined thickness of the BA, Bw and Bg horizons is 71 to 123 cm (28 to 48 inches).]

BCg--122 to 152 cm (48 to 60 inches); grayish brown (10YR 5/2) clay loam; moderate medium prismatic structure; firm; common faint gray (10YR 5/1) iron depletions on faces of peds; many medium prominent yellowish brown (10YR 5/6) masses of oxidized iron; few medium distinct black (10YR 2/1) manganese masses; neutral; gradual wavy boundary. [0 to 41 cm (16 inches) thick]

C--152 to 204 cm (60 to 80 inches); yellowish brown (10YR 5/4) clay loam; massive; firm; many coarse distinct gray (10YR 5/1) iron depletions; common coarse distinct yellowish brown (10YR 5/6) masses of oxidized iron; few medium distinct black (10YR 2/1) manganese masses; neutral.

TYPE LOCATION: Auglaize County, Ohio; about 4.5 miles north of St. Mary's; in Noble Township; 450 feet north and 20 feet west of the southeast corner of sec. 10, T. 5 S., R. 4 E.; USGS North Star, Ohio topographic quadrangle; lat. 40 degrees 36 minutes 46.20 seconds N. and long. 84 degrees 22 minutes 39.80 seconds W.; UTM Zone 16, 721835 easting and 4499085 northing, NAD 1983

RANGE IN CHARACTERISTICS:
Depth to the base of the cambic horizon: 107 to 168 cm (42 to 66 inches)
Thickness of the mollic epipedon: 25 to 51 cm (10 to 20 inches)
Particle-size control section: averages 35 to 45 percent clay and 15 to 25 percent sand
Rock fragments: typically absent but range from 0 to 5 percent throughout the series control section

Ap and A horizon:
Hue: 10YR
Value: 2 or 3
Chroma: 1 or 2
Texture: silty clay loam or silty clay
Clay content: 32 to 45 percent
Sand content: 10 to 20 percent
Reaction: slightly acid or neutral

BA and Bw horizon:
Hue: 7.5YR or 10YR
Value: 4 or 5
Chroma: 2 or 3
Texture: silty clay loam or silty clay
Clay content: 32 to 48 percent
Sand content: 10 to 20 percent
Reaction: slightly acid or neutral

Bg horizon and BCg or BC horizon, where present:
Hue: 10YR to 5Y, or is neutral
Value: 4 to 6
Chroma: 0 to 4
Texture: silty clay loam, clay loam, or silty clay
Clay content: 32 to 48 percent
Sand content: 10 to 30 percent
Reaction: slightly acid to slightly alkaline

C or Cg horizon:
Hue: 10YR to 5Y
Value: 4 to 6
Chroma: 1 to 4
Texture: silty clay loam, clay loam, or silty clay, or is stratified with these textures, and includes thin strata of loam
Clay content: 28 to 48 percent
Sand content: 10 to 35 percent
Reaction: neutral or slightly alkaline

COMPETING SERIES: There is no other series in this family.

GEOGRAPHIC SETTING: Spencerville soils are on flood plains of low gradient streams. Slope ranges from 0 to 1 percent. The soils formed in loamy and clayey alluvium washed from soils formed in drift of Wisconsinan age. Mean annual temperature ranges from 10.0 to 12.2 degrees C (50 to 54 degrees F). Mean annual precipitation ranges from 965 to 1067 mm (38 to 42 inches). Frost-free period is 140 to 170 days. Elevation is 228 to 275 meters (750 to 900 feet).

GEOGRAPHICALLY ASSOCIATED SOILS: These are the Saranac and Shoals soils on flood plains, and the Blount and Glynwood soils on till plains The moderately well drained Glynwood soils are on summits, shoulders and backslopes and the somewhat poorly Blount soils are on footslopes of dissected till plains. The poorly drained or very poorly drained Saranac soils are in adjacent depressions and on flats.

DRAINAGE AND SATURATED HYDRAULIC CONDUCTIVITY: Moderately well drained. The depth to the top of an intermittent apparent high water table ranges from 46 to 81 cm (1.5 to 2.5 feet) between December and April in normal years.The potential for surface water runoff is low. Saturated hydraulic conductivity is moderately high or moderately low. Permeability is slow. This soil is subject to frequent flooding for brief periods between November and June.

USE AND VEGETATION: Most areas of these soils are in woodland or grassland; some areas are used to grow soybeans and occasionally corn. Native vegetation is dominantly herbaceous wetland, mixed with deciduous hardwood trees.

DISTRIBUTION AND EXTENT: MLRA 111B in Indiana and Ohio. The series is of small extent.

SOIL SURVEY REGIONAL OFFICE (SSRO) RESPONSIBLE: AMHERST, MASSACHUSETTS

SERIES ESTABLISHED: Auglaize County, Ohio, 2011.

REMARKS: This series had previously been correlated as Defiance series in MLRA 111.

Diagnostic horizons and features recognized in this pedon are:
Mollic epipedon: from the surface to a depth of 38 cm (15 inches) (Ap, A horizons).
Cambic horizon: from a depth of 38 to 122 cm (15 to 48 inches) (BA, Bw, Bg horizons).
Aquic conditions: redoximorphic features with chroma of 2 or less are present in all horizons below 53 cm (21 inches).

The following DMU Descriptions\RecID have been stored in NASIS for an example of component data for this series: FOH_SSO Saranac-Spencerville sicls, 0-1% freq. flooded/ 558641

ADDITIONAL DATA: Historic characterization data available from The Ohio State University: MC-15 (Defiance series, 1970-OH107-015 in NASIS) and pending data from the National Soil Survey Laboratory (NSSL) S2010OH011043b (type location).

National Cooperative Soil Survey
U.S.A.