IDENTIFIERS

Current Taxon Name (Soil Name): Gravois

OSD

Series Extent

User Site ID: 1995MO051050

User Pedon ID: 1995MO051050

Lab Information:

Certified Lab Pedon Description - no

Lab Source ID - MCL

Lab Pedon # - M9505115

NCSS Pedon Lab Data NASIS Record ID - 34200

Print Date: 4/27/2025

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: 38.3712717

Std. Longitude: -92.2442197

Datum: WGS84

Range: R12W

Section: 22

Location Description: Harry Bexten Property; about 150' downslope from pedon #51; sec 22, T 42 N R 12 W

State: Missouri

County: MO051—Cole

MLRA: 116B—Springfield Plain

PEDON

Describers Name: JLB, GC

Current Taxon Kind: series

Pedon Type: not classified to current taxon name

Pedon Purpose: full pedon description

Pedon Record Orgin: Converted from PDP 3.x

Sampled As Information:

Soil Name - Gravois

PSC - 23 to 74 cm.

Classificaton Date - 2/23/1995

Moisture Class - udic

Dynamic Soil Properties:

Erosion Class - 2

Pedoderm Loose Cover Indicator - no

Hydric: no

SITE

Parent Material: colluvium and/or residuum weathered from cherty limestone

Landscape: upland

Landform: hillside

Geomorphic Component Hills: side slope

Hill Slope Profile: footslope

Slope Position: lower third

Slope Shape Across: convex

Slope Shape Down: concave

Drainage Class: moderately well

Surface Fragments:

Benchmark Soil?: no

VEGETATION

SITE OBSERVATION

Observation Date: 2/23/1995 (actual site observation date)

Air Photo ID: 4-78

Surface Cover Properties:

Site Obs. Cover Kind 1 - grass/herbaceous cover

Pedoderm Loose Cover Indicator - no

Drained? - no

Bedded Soil? - no

Forest Plantation? - no

Site Erosion Accelerated: water erosion

Pedon Diagnostic Features
Feature Kind	Feature Depth L-H	Feature Thickness L-RV-H
	cm
ochric epipedon argillic horizon	0—23 23—203	—- —-

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
12	—	—	180	—	270	991	—	—	12.8	23.9	0	—	—	—	—	—	4271	Jefferson City Water Plant	nonrecording

Ap—0 to 23 centimeters (0.0 to 9.1 inches); brown (10YR 4/3) silt loam; weak fine granular structure; very friable; 6.0 very fine roots; 0.5 very fine dendritic tubular pores; 5 percent by volume subangular 2-39-75 millimeter limestone, cherty fragments; slightly acid, pH 6.1, hellige-truog; abrupt smooth boundary. Lab sample # MU052550

Bt1—23 to 36 centimeters (9.1 to 14.2 inches); dark yellowish brown (10YR 4/6) silt loam; weak fine subangular blocky structure; firm; 6.0 very fine roots; 0.5 fine tubular pores; 10 percent distinct silt coats on vertical faces of peds and 30 percent distinct clay films on faces of peds and 30 percent distinct organic stains in root channels and/or pores; 1 percent fine spherical iron-manganese concretions; 1 percent by volume subangular 2-39-75 millimeter limestone, cherty fragments; slightly acid, pH 6.4, hellige-truog; clear smooth boundary. Lab sample # MU052551. Piezometer at top of horizon; continuous - phpvsfiid 146769; discontinuous - phpvsfiid 146768; discontinuous - phpvsfiid 146770; continuous - phpvsfiid 146769; discontinuous - phpvsfiid 146768; discontinuous - phpvsfiid 146770

Bt2—36 to 64 centimeters (14.2 to 25.2 inches); dark yellowish brown (10YR 4/6) silty clay loam; moderate fine subangular blocky structure; firm; 3.0 very fine roots; 0.5 very fine tubular pores; 10 percent prominent clay films in root channels and/or pores and 10 percent distinct silt coats on vertical faces of peds and 60 percent distinct clay films on faces of peds; 1 percent fine spherical iron-manganese concretions; 1 percent by volume subangular 2-39-75 millimeter limestone, cherty fragments; slightly acid, pH 6.1, hellige-truog; clear smooth boundary. Lab sample # MU052552. continuous - phpvsfiid 146771; discontinuous - phpvsfiid 146772; discontinuous - phpvsfiid 146773; continuous - phpvsfiid 146771; discontinuous - phpvsfiid 146772; discontinuous - phpvsfiid 146773

2Btx1—64 to 89 centimeters (25.2 to 35.0 inches); dark yellowish brown (10YR 4/4) silty clay loam; 10 percent grayish brown (10YR 5/2) fine prominent and 10 percent strong brown (7.5YR 5/8) fine prominent mottles; weak fine prismatic parts to weak medium subangular blocky structure; very firm; brittle; 0.5 very fine roots between peds; 0.5 very fine tubular pores; 30 percent distinct clay films on faces of peds and 30 percent distinct silt coats on vertical faces of peds and 30 percent prominent manganese or iron-manganese stains on vertical faces of peds; 1 percent by volume subangular 2-39-75 millimeter limestone, cherty fragments; strongly acid, pH 5.2, hellige-truog; gradual smooth boundary. Lab sample # MU052553. 20% brittle matrix Piezometer at top of horizon; patchy - phpvsfiid 148351; discontinuous - phpvsfiid 148349; discontinuous - phpvsfiid 148350; patchy - phpvsfiid 148351; discontinuous - phpvsfiid 148349; discontinuous - phpvsfiid 148350

2Btx2—89 to 119 centimeters (35.0 to 46.9 inches); 50 percent dark yellowish brown (10YR 4/4) and 50 percent dark yellowish brown (10YR 4/6) silty clay loam; 10 percent strong brown (7.5YR 5/8) fine prominent and 30 percent grayish brown (10YR 5/2) fine distinct mottles; weak fine prismatic parts to weak medium subangular blocky structure; very firm; brittle; 0.5 very fine roots between peds; 0.5 very fine tubular pores; 30 percent distinct clay films on faces of peds and 30 percent prominent manganese or iron-manganese stains on vertical faces of peds and 60 percent prominent silt coats on vertical faces of peds; 5 percent by volume subangular 2-39-75 millimeter limestone, cherty fragments; strongly acid, pH 5.1, hellige-truog; clear smooth boundary. Lab sample # MU052554. 25% brittle matrix; patchy - phpvsfiid 148354; discontinuous - phpvsfiid 148352; discontinuous - phpvsfiid 148353; patchy - phpvsfiid 148354; discontinuous - phpvsfiid 148352; discontinuous - phpvsfiid 148353

3Btx3—119 to 155 centimeters (46.9 to 61.0 inches); dark yellowish brown (10YR 4/4) extremely gravelly silt loam; 1 percent grayish brown (10YR 5/2) fine distinct and 1 percent strong brown (7.5YR 5/8) fine prominent mottles; weak coarse prismatic parts to weak fine subangular blocky structure; very firm; brittle; 0.5 fine tubular pores; 30 percent distinct clay films on faces of peds and 30 percent prominent silt coats on vertical faces of peds and 30 percent prominent manganese or iron-manganese stains on faces of peds; 10 percent by volume subangular 75-162-250 millimeter limestone, cherty fragments and 50 percent by volume subangular 2-39-75 millimeter limestone, cherty fragments; strongly acid, pH 5.1, hellige-truog; gradual smooth boundary. Lab sample # MU052555. 20% brittle matrix piezometer at top of horizon; patchy - phpvsfiid 148357; discontinuous - phpvsfiid 148355; discontinuous - phpvsfiid 148356; patchy - phpvsfiid 148357; discontinuous - phpvsfiid 148355; discontinuous - phpvsfiid 148356

3Btx4—155 to 203 centimeters (61.0 to 79.9 inches); strong brown (7.5YR 4/6) extremely gravelly clay loam; 1 percent grayish brown (10YR 5/2) fine prominent and 10 percent dark yellowish brown (10YR 4/6) fine distinct mottles; moderate fine subangular blocky structure; very firm; brittle; 0.5 fine tubular pores; 30 percent distinct clay films on faces of peds and 30 percent prominent silt coats on vertical faces of peds and 30 percent prominent manganese or iron-manganese stains on faces of peds; 10 percent by volume subangular 75-162-250 millimeter limestone, cherty fragments and 50 percent by volume subangular 2-39-75 millimeter limestone, cherty fragments; strongly acid, pH 5.5, hellige-truog. Lab sample # MU052556. 10% brittle matrix; patchy - phpvsfiid 148360; discontinuous - phpvsfiid 148358; discontinuous - phpvsfiid 148359; patchy - phpvsfiid 148360; discontinuous - phpvsfiid 148358; discontinuous - phpvsfiid 148359