IDENTIFIERS

Current Taxon Name (Soil Name): Osco

OSD

Series Extent

User Site ID: 1981IL143047

User Pedon ID: 1981IL143047

Lab Information:

Certified Lab Pedon Description - no

Lab Source ID - SSL

Lab Pedon # - 83P0245

NCSS Pedon Lab Data NASIS Record ID - 52487

Print Date: 3/2/2025

LOCATION

Location In Web Soil Survey

AOI is roughly a square mile and pedon is marked in the center.

Location in SoilWeb

Location in Google Maps

Std. Latitude: 40.9169806

Std. Longitude: -89.8501056

Datum: WGS84

Township: 11N

Range: 6E

Section: 20

PLSS Details: 300 feet N and 300 feet E of the SW corner

Map Unit: 43A—Ipava silt loam, 0 to 2 percent slopes

Country: US—United States

State: Illinois

County: IL143—Peoria

MLRA: 108—Illinois and Iowa Deep Loess and Drift

Regional Office: NC—North Central

MLRA Soil Survey Area: NC-SPI—Springfield, Illinois

Non-MLRA Soil Survey Area: IL143—Peoria County, Illinois

7.5 Minute USGS Quad: 40089-H7—Princeville, Illinois

PEDON

Describers Name: MW, MS

Current Taxonomic Class: Fine-silty, mixed, superactive, mesic Typic Argiudolls

Current Taxon Kind: series

Pedon Type: classifies to current taxon name, full description

Pedon Purpose: full pedon description

Pedon Record Orgin: Converted from SSL-CMS data

Pedon #: 47

Correlated Information:

Soil Name - Osco

Classificaton Date - 7/11/2007

Soil Taxonomic Edition - eleventh edition

Moisture Class - udic

Moisture Subclass - typic

Sampled As Information:

Soil Name - Tama

Classificaton Date - 8/1/1981

Dynamic Soil Properties:

Erosion Class - 1

Pedoderm Loose Cover Indicator - no

Hydric: no

SITE

Parent Material: loess

Landscape: till plain

Landform: knoll

Hill Slope Profile: summit

Slope Shape Across: convex

Slope Shape Down: convex

Drainage Class: well

Surface Fragments:

Benchmark Soil?: no

VEGETATION

SITE OBSERVATION

Observation Date: 8/1/1981 (actual site observation date)

Surface Cover Properties:

Site Obs. Cover Kind 1 - crop cover

Pedoderm Loose Cover Indicator - no

Drained? - no

Bedded Soil? - no

Forest Plantation? - no

Site Erosion Accelerated: water erosion

Setting and Climate
Slope	Slope Length USLE	Upslope Length	Elev.	Corr. Elev	Aspect	MAP	REAP	FFD	MAAT	MSAT	MWAT	MAST	MSST	MWST	MFFP	PE Index	Climate Station ID	Climate Station Name	Climate Station Type
%	m				degrees	mm	mm		C						mm
2	—	—	235.8	—	180	1025	—	190	13	—	—	—	—	—	—	—	—	—	—

Ap—0 to 20 centimeters (0.0 to 7.9 inches); very dark brown (10YR 2/2) interior, dark grayish brown (10YR 4/2) interior, dry; silty clay loam; moderate fine granular structure; friable; 5.5 very fine roots and 0.5 fine roots; fragments; moderately acid, pH 5.8; abrupt smooth boundary. Lab sample # 83P01121. many very fine roots; few fine roots

A1—20 to 28 centimeters (7.9 to 11.0 inches); very dark brown (10YR 2/2) interior, dark grayish brown (10YR 4/2) interior, dry; silty clay loam; moderate fine granular structure; friable; 5.5 very fine roots; fragments; neutral, pH 7.0; clear smooth boundary. many very fine roots

A2—28 to 43 centimeters (11.0 to 16.9 inches); dark brown (10YR 3/3) interior, dark grayish brown (10YR 4/2) interior and very dark brown (10YR 2/2) crushed, dry; silty clay loam; moderate very fine subangular blocky structure; friable; 5.5 very fine roots; 15 percent prominent very dark brown (10YR 2/2) clay films on faces of peds; fragments; neutral, pH 7.0; clear smooth boundary. few clay films surface features on faces of peds; many very fine roots

Bt1—43 to 58 centimeters (16.9 to 22.8 inches); brown (10YR 4/3) interior silty clay loam; moderate very fine subangular blocky structure; friable; 2.5 very fine roots; 15 percent prominent very dark grayish brown (10YR 3/2) organoargillans on faces of peds; fragments; slightly acid, pH 6.3; clear smooth boundary. few clay films surface features on faces of peds; common very fine roots

Bt2—58 to 69 centimeters (22.8 to 27.2 inches); brown (10YR 4/3) interior silty clay loam; moderate very fine and fine subangular blocky structure; firm; 2.5 very fine roots; 15 percent prominent dark brown (10YR 3/3) organoargillans on faces of peds; fragments; strongly acid, pH 5.3; clear smooth boundary. Lab sample # 83P01122. few clay films surface features on faces of peds; common very fine roots

Bt3—69 to 97 centimeters (27.2 to 38.2 inches); brown (10YR 4/3) interior silty clay loam; moderate fine and medium subangular blocky structure; firm; 2.5 very fine roots; 15 percent prominent brown (10YR 4/3) clay films on faces of peds; 1 percent fine faint yellowish brown (10YR 5/6) masses of oxidized iron; fragments; moderately acid, pH 5.8; clear smooth boundary. Common fine faint light brownish gray (10YR 6/1) rinds around root channels.; few clay films surface features on faces of peds; common very fine roots; few fine faint 10YR56 mottles

Bt4—97 to 145 centimeters (38.2 to 57.1 inches); yellowish brown (10YR 5/4) interior silty clay loam; weak coarse subangular blocky structure; firm; 0.5 very fine roots; 15 percent distinct brown (10YR 4/3) clay films on faces of peds; 11 percent fine faint yellowish brown (10YR 5/6) masses of oxidized iron; fragments; slightly acid, pH 6.3; gradual smooth boundary. Common fine faint light brownish gray (10YR 6/2) rinds around root channels.; few clay films surface features on faces of peds; few very fine roots; common fine faint 10YR56 mottles

C—145 to 152 centimeters (57.1 to 59.8 inches); yellowish brown (10YR 5/4) interior silty clay loam; massive; friable; 0.5 very fine roots; 11 percent fine faint light brownish gray (10YR 6/2) iron depletions and 11 percent fine faint yellowish brown (10YR 5/6) masses of oxidized iron; fragments; moderately acid, pH 6.0. Lab sample # 83P01123. few very fine roots; common fine faint 10YR56 mottles; common fine faint 10YR62 mottles