IDENTIFIERS

Current Taxon Name (Soil Name): WELLER

OSD

Series Extent

User Site ID: 2007MO183050

User Pedon ID: 2007MO183050

Vegetation Plot ID: 2007MO18350

Lab Information:

Certified Lab Pedon Description - no

Lab Source ID - MCL

Lab Pedon # - M0718350

NCSS Pedon Lab Data NASIS Record ID - 30236

Print Date: 6/2/2024

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: 38.9151111

Std. Longitude: -90.7625556

Datum: WGS84

PLSS Details: 580 feet West and 1,808 feet North from the South East corner of Survey 754,

Country: US—United States

State: Missouri

County: MO183—St. Charles

MLRA: 115—Central Mississippi Valley Wooded Slopes

Non-MLRA Soil Survey Area: MO183—St. Charles County, Missouri

7.5 Minute USGS Quad: 38090-H7—Maryknoll, Missouri

PEDON

Describers Name: John Horton, Keith Knelle

Current Taxonomic Class: Fine, smectitic, mesic Typic Endoaqualfs

Current Taxon Kind: series

Pedon Type: map unit inclusion

Pedon Purpose: full pedon description

Pedon Record Orgin: Missouri Pedon

Pedon #: 50

Sampled As Information:

Soil Name - WELLER

Taxonomic Class - Fine, smectitic, mesic Typic Endoaqualfs

PSC - 28 to 79 cm.

Classificaton Date - 11/8/2007

Soil Taxonomic Edition - ninth edition

Moisture Class - aquic

Moisture SUBClass - typic

Dynamic Soil Properties:

Erosion Class - 1

Pedoderm Loose Cover Indicator - no

Hydric: no

SITE

Landscape: river valley

Landform: terrace

Geomorphic Component Terraces: tread

Slope Complexity: simple

Slope Shape Across: linear

Slope Shape Down: linear

Runoff: low

Drainage Class: poorly

Flooding: very rare flooding for extremely brief periods

Ponding: none ponding

Geology: Holocene Stage formation.

Surface Fragments:

Benchmark Soil?: no

VEGETATION

SITE OBSERVATION

Observation Date: 11/8/2007 (actual site observation date)

Air Photo ID: 38090h7se

Surface Water Kind: flooded

Surface Water Depth: 15

Surface Cover Properties:

Site Obs. Cover Kind 1 - crop cover

Site Obs. Cover Kind 2 - row crop

Pedoderm Loose Cover Indicator - no

Drained? - no

Bedded Soil? - no

Forest Plantation? - no

Site Erosion Accelerated: water erosion sheet

Vegetation Plot Plants
Plant Symbol	Scientific Name	National Vernacular Name	Plant Type Group	Canopy Cover %	Vegetation Stata Level
ZEMA	Zea mays	corn	—	—	—

Pedon Diagnostic Features
Feature Kind	Feature Depth L-H	Feature Thickness L-RV-H
	cm
ochric epipedon reduced matrix redox concentrations argillic horizon lithologic discontinuity	0—28 0—216 15—216 28—185 124—	—28— —216— —201— —157— —1—

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
0.5	—	—	143	—	0	—	—	—	—	—	—	—	—	—	—	—	—	—	—

Ap—0 to 15 centimeters (0.0 to 5.9 inches); grayish brown (2.5Y 5/2) rubbed silt loam; weak fine subangular blocky structure; friable; 3.0 very fine roots throughout and 3.0 fine roots throughout; 3.0 fine interstitial pores; fragments; gradual smooth boundary. Lab sample # MU029492; observed in pit, small

E—15 to 28 centimeters (5.9 to 11.0 inches); grayish brown (2.5Y 5/2) broken face silt loam; moderate fine subangular blocky structure; friable; 3.0 very fine roots throughout and 3.0 fine roots throughout; 3.0 fine tubular pores; 1 percent medium faint irregular noncoherent cemented strong brown (7.5YR 4/6), moist, iron depletions with clear boundaries in matrix and 1 percent medium faint irregular noncoherent cemented very dark gray (10YR 3/1), moist, iron depletions with clear boundaries in matrix; fragments; clear smooth boundary. Lab sample # MU029493; observed in pit, small

Btg1—28 to 71 centimeters (11.0 to 28.0 inches); grayish brown (2.5Y 5/2) broken face silt loam; weak fine prismatic structure; firm; 3.0 very fine roots throughout; 3.0 fine tubular pores; 35 percent prominent light gray (10YR 7/2), dry, silt coats and 35 percent prominent dark gray (2.5Y 4/1), moist, clay films; 1 percent medium faint irregular noncoherent cemented yellowish brown (10YR 5/8), moist, iron depletions with clear boundaries in matrix and 1 percent medium faint irregular noncoherent cemented very dark gray (10YR 3/1), moist, iron depletions with clear boundaries in matrix; fragments; gradual smooth boundary. Lab sample # MU029494; observed in pit, small

Btg2—71 to 104 centimeters (28.0 to 40.9 inches); grayish brown (2.5Y 5/2) broken face silty clay loam; moderate medium prismatic structure; very firm; 3.0 very fine roots throughout; 0.5 fine tubular pores; 12 percent prominent light gray (10YR 7/2), dry, silt coats and 35 percent prominent dark grayish brown (2.5Y 4/2), moist, clay films; 1 percent medium faint irregular noncoherent cemented strong brown (7.5YR 4/6), moist, iron depletions with clear boundaries in matrix and 1 percent medium faint irregular noncoherent cemented very dark gray (10YR 3/1), moist, iron depletions with clear boundaries in matrix; fragments; clear smooth boundary. Lab sample # MU029495; observed in pit, small

Btg3—104 to 124 centimeters (40.9 to 48.8 inches); gray (2.5Y 6/1) broken face silty clay loam; strong medium prismatic structure; very firm; 0.5 very fine roots throughout; 3.0 fine tubular pores; 35 percent prominent dark grayish brown (2.5Y 4/2), moist, clay films and 35 percent very dark gray (2.5Y 3/1), moist, organoargillans; 1 percent medium faint irregular noncoherent cemented strong brown (7.5YR 4/6), moist, iron depletions with clear boundaries in matrix and 1 percent medium faint irregular noncoherent cemented very dark gray (10YR 3/1), moist, iron depletions with clear boundaries in matrix; fragments; clear smooth boundary. Lab sample # MU029496; observed in pit, small

2Btg4—124 to 155 centimeters (48.8 to 61.0 inches); light olive gray (5Y 6/2) broken face silty clay loam; strong medium prismatic structure; firm; 0.5 very fine roots throughout; 3.0 very fine tubular pores; 35 percent prominent dark grayish brown (2.5Y 4/2), moist, clay films and 35 percent very dark gray (2.5Y 3/1), moist, organoargillans; 1 percent medium faint irregular noncoherent cemented very dark gray (10YR 3/1), moist, iron depletions with clear boundaries in matrix and 1 percent medium faint irregular noncoherent cemented strong brown (7.5YR 5/8), moist, iron depletions with clear boundaries in matrix; fragments; gradual smooth boundary. Lab sample # MU029497; observed in pit, small

2Btg5—155 to 185 centimeters (61.0 to 72.8 inches); light olive gray (5Y 6/2) broken face silt loam; moderate medium prismatic structure; firm; 3.0 fine tubular pores; 35 percent prominent dark grayish brown (2.5Y 4/2), moist, clay films and 35 percent very dark gray (2.5Y 3/1), moist, organoargillans; 1 percent medium faint irregular noncoherent cemented very dark gray (10YR 3/1), moist, iron depletions with clear boundaries in matrix and 1 percent medium faint irregular noncoherent cemented strong brown (7.5YR 5/8), moist, iron depletions with clear boundaries in matrix; fragments; abrupt smooth boundary. Lab sample # MU029498; observed in pit, small

3Cg—185 to 216 centimeters (72.8 to 85.0 inches); grayish brown (2.5Y 5/2) broken face and light olive brown (2.5Y 5/3) broken face fine sandy loam; massive; firm; 10.0 fine interstitial pores; 1 percent medium faint irregular noncoherent cemented very dark gray (10YR 3/1), moist, iron depletions with clear boundaries in matrix and 1 percent medium faint irregular noncoherent cemented strong brown (7.5YR 5/8), moist, iron depletions with clear boundaries in matrix; fragments. Lab sample # MU029499; observed in pit, small