LOCATION TRUMBULL OH

Established Series
Rev. AR-DMC-GMS
03/2015

TRUMBULL SERIES

The Trumbull series consists of very deep, poorly drained soils formed in low-lime till on plains. Saturated hydraulic conductivity is moderately low in the subsoil and low or moderately low in the substratum. Slope gradients range from 0 to 6 percent. Mean annual precipitation is about 1065 mm (42 in), and mean annual temperature is about 9 degrees C (48 degrees F).

TAXONOMIC CLASS: Fine, illitic, mesic Typic Epiaqualfs

TYPICAL PEDON: Trumbull silty clay loam, 0 to 2 percent slopes in a nearly level cultivated field in a drainageway on a till plain. (Colors are for moist soil.)

Ap--0 to 20 cm (0 to 8 in); dark grayish brown (2.5Y 4/2) silty clay loam; common fine faint grayish brown (10YR 5/2) redox depletions and common fine prominent reddish brown (5YR 4/4) redox concentrations; moderate medium granular structure; friable; moderately acid; abrupt smooth boundary. (15 to 25 cm [6 to 10 in] thick)

Bg--20 to 36 cm (8 to 14 in); grayish brown (2.5Y 5/2) silty clay loam; few fine faint brown (10YR 4/3) concentrations; strong medium subangular blocky structure; very firm; moderately acid; clear wavy boundary. (0 to 25 cm [0 to 10 in] thick)

Btg1--36 to 86 cm (14 to 34 in); gray (N 5/0) clay; few fine prominent yellowish red (5YR 4/6) and common fine prominent yellowish brown (10YR 5/6) concentrations; moderate medium prismatic structure parting to moderate medium angular blocky; very firm; patchy thin gray (10YR 5/1) clay films on faces of peds; 2 percent rock fragments; slightly acid; gradual wavy boundary. (13 to 51 cm [5 to 20 in] thick)

Btg2--86 to 112 cm (34 to 44 in); gray (N 5/0) clay; many medium prominent yellowish brown (10YR 5/6) concentrations; moderate coarse prismatic structure parting to moderate coarse angular blocky; firm; patchy thin gray (10YR 5/1) clay films on faces of peds; 2 percent rock fragments; neutral; gradual wavy boundary. (18 to 51 cm [7 to 20 in] thick)

Cg--112 to 152 cm (44 to 60 in); gray (N 5/0) silty clay loam; many medium prominent yellowish brown (10YR 5/6) concentrations; massive; firm; 3 percent rock fragments; moderately alkaline; strong effervescence.

TYPE LOCATION: Lorain County, Ohio; Camden Township; 500 feet south of Bronson Road, 200 feet east of S. R. 511. USGS Brighton, Ohio topographic quadrangle; Latitude 41 degrees, 13 minutes, 28 seconds N. and Longitude 82 degrees, 18 minutes, 17 seconds W., NAD 1983.

RANGE IN CHARACTERISTICS: Thickness of solum ranges from 102 to 152 cm (40 to 60 in). Rock fragments are dominantly gravel but cobbles and boulders are in some pedons. Content of rock fragments ranges from 2 to 10 percent in the lower part of the subsoil and in the substratum. Reaction ranges from extremely acid to slightly acid in the A and E horizons, extremely acid to neutral in the upper part of the B horizon, and moderately acid to slightly alkaline in the lower part of the B horizon. Reaction of the C horizon ranges from neutral to moderately alkaline and is calcareous in some or all parts.

The Ap horizon has hue of 10YR or 2.5Y, value of 4 or 5, and chroma of 1 or 2. In wooded areas a 3 to 10 cm (1 to 4 inch) thick A horizon is present with hue of 10YR or 2.5Y or is neutral, value of 4 to 6, and chroma of 0 to 2. Where present, an E horizon 5 to 23 cm (2 to 9 in) thick, underlies A horizons and some Ap horizons. The E horizon has hue of 10YR or 2.5Y or is neutral, value of 4 to 6, and chroma of 0 to 2. The A and E horizons are silty clay loam or silt loam.

The B horizon, to a depth of 75 cm (30 inches), has hue of 10YR to 5Y or is neutral, value of 4 to 6, and chroma of 0 to 2 with common to many concentrations with hue of 10YR to 5Y, value of 4 or 5, and chroma of 4 to 8. Below 75 cm (30 inches) the range also includes chroma of 3 or 4. Surfaces of peds have the same range of hue as the matrix, value of 3 to 5, and chroma of 2 or less. It is dominantly silty clay or clay and the average clay content of the control section is between 35 and 60 percent. Some subhorizons are silty clay loam, clay loam or clay.

The C horizon has hue of 10YR to 5Y or is neutral; value of 4 to 6; and chroma of 1 to 4. It is clay loam, silty clay loam, or clay.

COMPETING SERIES: This is the Condit series. Condit soils are very poorly drained.

The Canadice, Hoytville, Latty, Lorain, Mahoning, Miner, Toledo, and Wetzel series are in related families. Canadice soils essentially lack coarse fragments. Wetzel soils are neutral or mildly alkaline in the upper part of the B horizon. Hoytville, Lorain, and Miner soils have thick, dark surface horizons. Latty and Toledo soils lack argillic horizons. Mahoning soils have a subhorizon within 75 cm (30 in) that has matrix colors with chroma of more than 2. Wetzel soils are neutral or slightly alkaline in the upper part of the B horizon and have endosaturation.

GEOGRAPHIC SETTING: Trumbull soils are on level to gently sloping and depressional portions of till plains. Slopes are dominantly less than 4 percent but range to 6 percent. The soils developed in low-lime glacial till. Mean annual precipitation ranges from 830 to 1320 mm (33 to 52 in). The mean annual temperature ranges from about 6 to 11 degrees C (43 to 52 degrees F).

GEOGRAPHICALLY ASSOCIATED SOILS: Trumbull soils are in drainage sequences with the moderately well drained Ellsworth, somewhat poorly drained Mahoning, and very poorly drained Miner soils, and with the moderately well drained Geeburg and somewhat poorly drained Remsen soils. Other associated soils are the poorly drained Sebring soils on silty lacustrine deposits and poorly drained Canadice soils on clayey lacustrine deposits.

DRAINAGE AND SATURATED HYDRAULIC CONDUCTIVITY: Poorly drained. Saturated hydraulic conductivity is moderately low in the subsoil and low or moderately low in the substratum. Depth to the top of a perched and/or apparent seasonal high water table ranges from 15 cm (0.5 ft.) above the surface to 15 cm (0.5 ft.) below the surface from November to May in most years. Frequent brief ponding occurs during periods of heavy rainfall and snowmelt.

USE AND VEGETATION: Much of the Trumbull soils have been cleared and cultivated. Many areas of Trumbull soils are used for pasture or woodland and are no longer cultivated. Many areas near the cities are in non-agricultural uses. The dominant tree species are elm, soft maple, pin oak, and ash. Cultivated areas are used for corn, meadow, and hay.

DISTRIBUTION AND EXTENT: Northeastern Ohio. The series is of moderate extent.

MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Amherst, Massachusetts

SERIES ESTABLISHED: Geauga County, Ohio, 1914.

REMARKS: The Trumbull series was classified as Low-Humic Gley soils in the 1938 classification system. Lab data for the Trumbull series indicates the clay content of the control section generally ranges from 35 to 40 percent in most pedons, thus making the previously listed separation from the Condit series invalid. This series separation needs to be evaluated at some point in the future. On 1/22/2014, the original Trumbull typical pedon site was visited to confirm the presence of high chroma concentrations and water table as noted in the description above.

Diagnostic horizons and features recognized in this pedon include:
1. Ochric epipedon - the zone from 0 to 36 cm (0 to 14 in) (Ap, Bg).
2. Argillic horizon - the zone from 36 to 112 cm (14 to 44 in) (Btg1, Btg2).
3. Aquic conditions - the zone from 0 to 152 cm (0 to 60 in) with intermittent perching.

ADDITIONAL DATA: Characterization data for the Trumbull series include profiles LR-S4, MH-20, and MH-42.

National Cooperative Soil Survey
U.S.A.