IDENTIFIERS

Current Taxon Name (Soil Name): TRELOAR

OSD

Series Extent

User Site ID: 2007MO183015

User Pedon ID: 2007MO183015

Lab Information:

Certified Lab Pedon Description - no

Lab Source ID - MCL

Lab Pedon # - M0718315

NCSS Pedon Lab Data NASIS Record ID - 25634

Print Date: 11/21/2024

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: 38.5483611

Std. Longitude: -90.9350556

Datum: WGS84

Township: T44N

Range: R1E

Section: 20

PLSS Details: 3,600 feet East and 3,097 feet South from the North West corner

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-E8—Washington East, Missouri

PEDON

Describers Name: Ralph Tucker

Current Taxonomic Class: Sandy over loamy, mixed, superactive, calcareous, mesic Oxyaquic Udifluvents

Current Taxon Kind: series

Pedon Type: classifies to current taxon name, full description

Pedon Purpose: full pedon description

Pedon Record Orgin: Missouri Pedon

Pedon #: 15

Correlated Information:

Soil Name - TRELOAR

PSC - 25 to 102 cm.

Classificaton Date - 2/1/2012

Soil Taxonomic Edition - ninth edition

Moisture Class - udic

Moisture Subclass - oxyaquic

Sampled As Information:

Soil Name - KENMOOR

Classificaton Date - 3/30/2007

Dynamic Soil Properties:

Erosion Class - 0

Pedoderm Loose Cover Indicator - no

Hydric: no

SITE

Parent Material: sandy alluvium derived from mixed over loamy alluvium derived from mixed

Landscape: river valley

Landform: flood-plain step

Geomorphic Component Hills: interfluve

Hill Slope Profile: summit

Slope Position: upper third

Slope Complexity: simple

Slope Shape Across: linear

Slope Shape Down: linear

Runoff: negligible

Drainage Class: moderately well

Flooding: occasional flooding for long periods

Ponding: none ponding

Geology: Holocene Stage formation.

Surface Fragments:

Benchmark Soil?: no

VEGETATION

SITE OBSERVATION

Observation Date: 3/30/2007 (actual site observation date)

Air Photo ID: 38090e8se

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 gully

Pedon Diagnostic Features
Feature Kind	Feature Depth L-H	Feature Thickness L-RV-H
	cm
ochric epipedon cambic horizon aquic conditions strongly contrasting particle size class cambic horizon	0—25 53—71 53— 53— 119—216	—25— —18— —1— —1— —97—

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	—	—	143.9	—	2	—	—	—	—	—	—	—	—	—	—	—	—	—	—

Ap1—0 to 15 centimeters (0.0 to 5.9 inches); brown (10YR 4/3) broken face fine sandy loam; weak fine subangular blocky structure; firm; 3.0 fine roots throughout; 0.5 fine tubular pores; fragments; very slight effervescence, by hcl, 1n; abrupt smooth boundary. Lab sample # MU003776; observed in pit, small

Ap2—15 to 25 centimeters (5.9 to 9.8 inches); brown (10YR 4/3) broken face fine sandy loam; weak fine subangular blocky structure; firm; 3.0 fine roots throughout; 0.5 fine tubular pores; fragments; very slight effervescence, by hcl, 1n; clear smooth boundary. Lab sample # MU003777; observed in pit, small

C—25 to 53 centimeters (9.8 to 20.9 inches); 60 percent brown (10YR 4/3) broken face and 40 percent reddish brown (2.5YR 4/4) broken face loamy fine sand; massive; firm; 0.5 fine roots throughout; 0.5 fine tubular pores; 1 percent medium faint irregular noncoherent cemented strong brown (7.5YR 5/6), moist, iron depletions with clear boundaries in matrix; fragments; very slight effervescence, by hcl, 1n; clear smooth boundary.; observed in pit, small

2Ab—53 to 71 centimeters (20.9 to 28.0 inches); very dark gray (10YR 3/1) broken face silty clay loam; moderate fine angular blocky structure; friable; 1 percent medium faint irregular noncoherent cemented dark gray (10YR 4/1), moist, iron depletions with clear boundaries in matrix and 1 percent medium faint irregular noncoherent cemented strong brown (7.5YR 5/6), moist, iron depletions with clear boundaries in matrix; fragments; very slight effervescence, by hcl, 1n; abrupt smooth boundary.; observed in pit, small

2C1—71 to 91 centimeters (28.0 to 35.8 inches); reddish brown (2.5YR 4/4) broken face stratified fine sand; massive; firm; 1 percent medium faint irregular noncoherent cemented strong brown (7.5YR 5/6), moist, iron depletions with clear boundaries in matrix; fragments; slight effervescence, by hcl, 1n; clear smooth boundary.; observed in pit, small

2C2—91 to 119 centimeters (35.8 to 46.9 inches); 70 percent reddish brown (2.5YR 4/3) broken face and 30 percent dark grayish brown (10YR 4/2) broken face stratified fine sand; massive; firm; 1 percent medium faint irregular noncoherent cemented strong brown (7.5YR 4/6), moist, iron depletions with clear boundaries in matrix; fragments; slight effervescence, by hcl, 1n; gradual smooth boundary.; observed in pit, small

3Ab—119 to 145 centimeters (46.9 to 57.1 inches); very dark gray (10YR 3/1) broken face silty clay loam; weak fine angular blocky structure; friable; 1 percent medium faint irregular noncoherent cemented dark gray (10YR 4/1), moist, iron depletions with clear boundaries in matrix and 1 percent medium faint irregular noncoherent cemented strong brown (7.5YR 5/6), moist, iron depletions with clear boundaries in matrix; fragments; slight effervescence, by hcl, 1n; gradual smooth boundary.; observed in pit, small

3Bg1—145 to 168 centimeters (57.1 to 66.1 inches); dark gray (10YR 4/1) broken face silty clay loam; weak fine angular blocky structure; friable; 1 percent medium faint irregular noncoherent cemented strong brown (7.5YR 5/6), moist, iron depletions with clear boundaries in matrix; fragments; slight effervescence, by hcl, 1n; gradual smooth boundary.; observed in pit, small

3Bg2—168 to 216 centimeters (66.1 to 85.0 inches); dark gray (10YR 4/1) broken face silt loam; weak fine angular blocky structure; friable; 1 percent medium faint irregular noncoherent cemented strong brown (7.5YR 5/6), moist, iron depletions with clear boundaries in matrix; fragments; slight effervescence, by hcl, 1n.; observed in pit, small