IDENTIFIERS

Current Taxon Name (Soil Name): Keithville

OSD

Series Extent

User Site ID: 06LA017 Keithville OSD

User Pedon ID: 06LA017 Keithville OSD

Lab Information:

Certified Lab Pedon Description - no

Lab Source ID - KSSL

Lab Pedon # - 06N0857

NCSS Pedon Lab Data NASIS Record ID - 18913

Print Date: 11/24/2024

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: 32.2783333

Std. Longitude: -93.8617222

Datum: WGS84

Map Unit: 13C—Keithville very fine sandy loam, 1 to 5 percent slopes

Country: US—United States

State: Louisiana

County: LA017—Caddo

MLRA: 133B—Western Coastal Plain

Non-MLRA Soil Survey Area: LA017—Caddo Parish, Louisiana

7.5 Minute USGS Quad: 32093-C7—Stonewall, Louisiana

PEDON

Describers Name: Marc Bordelon

Current Taxonomic Class: Fine-silty, siliceous, semiactive, thermic Glossaquic Paleudalfs

Current Taxon Kind: series

Pedon Type: OSD pedon

Pedon Purpose: full pedon description

Pedon Record Orgin: NASIS

Correlated Information:

Soil Name - Keithville

PSC - 35 to 85 cm.

Classificaton Date - 7/24/2014

Soil Taxonomic Edition - eleventh edition

Moisture Class - udic

Moisture Subclass - aquic

Sampled As Information:

Soil Name - Keithville

Taxonomic Class - Fine-silty, siliceous, semiactive, thermic Glossaquic Paleudalfs

Taxon Kind - series

PSC - 35 to 85 cm.

Classificaton Date - 5/22/2006

Soil Taxonomic Edition - eleventh edition

Moisture SUBClass - udic

Dynamic Soil Properties:

Erosion Class - 1

Pedoderm Loose Cover Indicator - no

Hydric: no

Certification Status: certified

QC Status: level 1

SITE

Parent Material: fluviomarine deposits

Landscape: coastal plain

Landform: fluviomarine terrace

Geomorphic Component Hills: nose slope

Hill Slope Profile: shoulder

Slope Position: upper third

Slope Complexity: simple

Slope Shape Across: convex

Slope Shape Down: concave

Runoff: low

Drainage Class: moderately well

Flooding: none flooding

Geology: Wilcox Undifferentiated member of the Wilcox formation in the Claiborne group.

Surface Fragments:

Benchmark Soil?: no

VEGETATION

SITE OBSERVATION

Observation Date: 5/22/2006 (actual site observation date)

Air Photo ID: 24D

Surface Water Kind: none observed

Surface Cover Properties:

Site Obs. Cover Kind 1 - grass/herbaceous cover

Site Obs. Cover Kind 2 - pastureland, tame

Pedoderm Loose Cover Indicator - no

Drained? - no

Bedded Soil? - no

Forest Plantation? - no

Pedon Diagnostic Features
Feature Kind	Feature Depth L-H	Feature Thickness L-RV-H
	cm
ochric epipedon argillic horizon glossic horizon redox concentrations lithologic discontinuity	0—28 35—207 57—129 57—207 71—207	—- —- —- —- —-

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	—	—	66	—	340	1308	—	225	17.2	—	—	—	—	—	—	—	LA8440	Shreveport WSO	—

Ap—0 to 7 centimeters (0.0 to 2.8 inches); brown (10YR 5/3) broken face very fine sandy loam; weak fine granular structure; nonsticky, nonplastic; 25.0 very fine roots throughout and 20.0 fine roots throughout and 1.0 coarse roots throughout; 6.0 very fine irregular pores; 1 percent medium spherical moderately coherent cemented iron-manganese concretions with clear boundaries throughout; fragments; noneffervescent; abrupt smooth boundary. Lab sample # 06N03688; very dry when described; observed in trench

E—7 to 28 centimeters (2.8 to 11.0 inches); brown (7.5YR 5/4) broken face very fine sandy loam; weak fine granular structure; nonsticky, nonplastic; 15.0 very fine roots throughout and 1.0 medium roots throughout and 10.0 fine roots throughout; 6.0 very fine irregular pores; 1 percent fine distinct spherical weakly coherent cemented iron-manganese concretions with sharp boundaries throughout; fragments; noneffervescent; clear wavy boundary. Lab sample # 06N03689; very dry when described; observed in trench

BE—28 to 35 centimeters (11.0 to 13.8 inches); variegated 60 percent strong brown (7.5YR 5/6) broken face and 40 percent yellowish brown (10YR 5/4) broken face silt loam; weak medium subangular blocky structure; nonsticky, nonplastic; 5.0 very fine roots throughout and 1.0 medium roots throughout and 2.0 fine roots throughout; 4.0 very fine irregular and 0.9 medium irregular and 3.0 fine irregular pores; 2 percent fine distinct irregular yellowish brown (10YR 5/6), moist, iron-manganese concretions with diffuse boundaries throughout; fragments; noneffervescent; gradual wavy boundary. Lab sample # 06N03690; dry when described; observed in trench

Bt—35 to 57 centimeters (13.8 to 22.4 inches); yellowish red (5YR 5/6) broken face clay loam; moderate medium subangular blocky structure; slightly sticky, slightly plastic; 1.0 very fine roots between peds and 1.0 medium roots between peds and 1.0 fine roots between peds; 4.0 very fine irregular and 0.9 medium irregular and 3.0 fine irregular pores; 40 percent distinct yellowish red (5YR 4/6), moist, clay films on faces of peds; 2 percent fine distinct irregular iron-manganese concretions with clear boundaries throughout; fragments; noneffervescent; abrupt wavy boundary. Lab sample # 06N03691; moderately dry when described; observed in trench. discontinuous - phpvsfiid 327646; discontinuous - phpvsfiid 327646

Bt/E—57 to 71 centimeters (22.4 to 28.0 inches); variegated 85 percent yellowish red (5YR 5/6) broken face and 15 percent pale brown (10YR 6/3) broken face clay loam; moderate medium subangular blocky structure; moderately sticky, moderately plastic; 2.0 very fine roots between peds and 1.0 medium roots between peds and 1.0 fine roots between peds and 1.0 coarse roots between peds; 4.0 very fine irregular and 0.9 medium irregular and 3.0 fine irregular pores; 5 percent distinct light gray (10YR 7/2), moist, skeletans on faces of peds and 25 percent distinct yellowish red (5YR 4/6), moist, clay films on surfaces along pores and 40 percent distinct yellowish red (5YR 4/6), moist, clay films on faces of peds; 1 percent fine distinct irregular grayish brown (10YR 5/2), moist, masses of reduced iron with diffuse boundaries throughout and 7 percent medium distinct irregular yellowish brown (10YR 5/6), moist, masses of oxidized iron with diffuse boundaries throughout; fragments; noneffervescent; clear wavy boundary. Lab sample # 06N03692; moist when described; observed in trench. discontinuous - phpvsfiid 327647; discontinuous - phpvsfiid 327660; discontinuous - phpvsfiid 1216515; discontinuous - phpvsfiid 327647; discontinuous - phpvsfiid 327660; discontinuous - phpvsfiid 1216515

2Bt/E1—71 to 118 centimeters (28.0 to 46.5 inches); variegated 85 percent grayish brown (10YR 5/2) broken face and 15 percent yellowish brown (10YR 7/8) broken face silty clay; moderate medium prismatic parts to moderate medium subangular blocky structure; very sticky, very plastic; 2.0 very fine roots between peds and 1.0 medium roots between peds and 1.0 fine roots between peds and 1.0 coarse roots between peds; 4.0 very fine irregular and 0.9 medium irregular and 3.0 fine irregular pores; 5 percent distinct light gray (10YR 7/2), moist, skeletans on faces of peds and 60 percent distinct gray (10YR 5/1), moist, clay films on faces of peds; 1 percent fine distinct irregular strong brown (7.5YR 5/6), moist, masses of oxidized iron with diffuse boundaries throughout; fragments; noneffervescent; gradual wavy boundary. Lab sample # 06N03693; moist when described; observed in trench. discontinuous - phpvsfiid 327661; discontinuous - phpvsfiid 327681; discontinuous - phpvsfiid 327661; discontinuous - phpvsfiid 327681

2Bt/E2—118 to 129 centimeters (46.5 to 50.8 inches); variegated 90 percent grayish brown (2.5Y 5/2) broken face and 10 percent dark red (2.5YR 3/6) broken face silty clay; moderate medium prismatic parts to moderate medium subangular blocky structure; very sticky, very plastic; 1.0 very fine roots between peds and 1.0 fine roots between peds; 0.9 medium irregular and 2.0 fine irregular pores; 5 percent distinct light gray (10YR 7/2), moist, skeletans on faces of peds and 25 percent distinct pressure faces on faces of peds and 60 percent distinct gray (2.5Y 5/1), moist, clay films on faces of peds; 9 percent medium distinct irregular strong brown (7.5YR 5/6), moist, masses of oxidized iron with diffuse boundaries throughout; 1 percent fine distinct irregular noncoherent cemented barite masses with clear boundaries throughout; fragments; noneffervescent; gradual wavy boundary. Lab sample # 06N03694; moist when described; observed in trench. patchy - phpvsfiid 327665; discontinuous - phpvsfiid 327664; discontinuous - phpvsfiid 327680; patchy - phpvsfiid 327665; discontinuous - phpvsfiid 327664; discontinuous - phpvsfiid 327680

3Bt1—129 to 167 centimeters (50.8 to 65.7 inches); grayish brown (2.5Y 5/2) broken face silty clay loam; moderate medium prismatic parts to weak medium subangular blocky structure; very sticky, very plastic; 1.0 very fine roots between peds and 1.0 fine roots between peds; 0.9 medium irregular and 2.0 fine irregular pores; 3 percent distinct light gray (10YR 7/2), moist, skeletans on faces of peds and 20 percent distinct pressure faces on faces of peds and 60 percent distinct gray (2.5Y 5/1), moist, clay films on faces of peds; 10 percent medium prominent irregular strong brown (7.5YR 5/8), moist, and strong brown (7.5YR 5/6), moist, masses of oxidized iron with diffuse boundaries throughout; 1 percent fine distinct irregular noncoherent cemented barite masses with clear boundaries throughout; fragments; noneffervescent; gradual wavy boundary. Lab sample # 06N03695; moist when described; observed in trench. discontinuous - phpvsfiid 327666; patchy - phpvsfiid 327667; patchy - phpvsfiid 327672; discontinuous - phpvsfiid 327666; patchy - phpvsfiid 327667; patchy - phpvsfiid 327672

3Bt2—167 to 192 centimeters (65.7 to 75.6 inches); grayish brown (2.5Y 5/2) broken face silty clay; weak medium angular blocky, and moderate medium prismatic structure; very sticky, very plastic; 1.0 very fine roots between peds and 1.0 fine roots between peds; 0.9 medium irregular and 2.0 fine irregular pores; 35 percent distinct pressure faces on faces of peds and 60 percent distinct gray (2.5Y 5/1), moist, clay films on faces of peds; 1 percent fine prominent irregular yellowish red (5YR 5/6), moist, masses of oxidized iron with clear boundaries throughout and 3 percent medium prominent irregular strong brown (7.5YR 5/6), moist, masses of oxidized iron with clear boundaries throughout and 25 percent medium prominent irregular strong brown (7.5YR 5/6), moist, and strong brown (7.5YR 5/8), moist, masses of oxidized iron with diffuse boundaries throughout; 1 percent very fine distinct irregular noncoherent cemented barite masses with clear boundaries throughout; fragments; noneffervescent; extremely acid, pH 4.0, hellige-truog; abrupt wavy boundary. Lab sample # 06N03696; moist when described; observed in trench. discontinuous - phpvsfiid 327673; discontinuous - phpvsfiid 327674; discontinuous - phpvsfiid 327673; discontinuous - phpvsfiid 327674

3Bt3—192 to 207 centimeters (75.6 to 81.5 inches); grayish brown (2.5Y 5/2) broken face silty clay; moderate medium prismatic parts to weak medium angular blocky structure; very sticky, very plastic; 1.0 very fine roots between peds and 1.0 fine roots between peds; 0.9 fine irregular pores; 35 percent distinct pressure faces on faces of peds and 60 percent distinct gray (2.5Y 5/1), moist, clay films on faces of peds; 15 percent medium prominent irregular strong brown (7.5YR 5/6), moist, masses of oxidized iron with clear boundaries throughout and 30 percent medium distinct irregular yellowish brown (10YR 5/6), moist, and yellowish brown (10YR 5/8), moist, masses of oxidized iron with clear boundaries throughout; 1 percent very fine distinct irregular noncoherent cemented barite masses with clear boundaries throughout; fragments; noneffervescent; extremely acid, pH 4.0, hellige-truog. Lab sample # 06N03697; moist when described; observed in trench. discontinuous - phpvsfiid 327675; discontinuous - phpvsfiid 327676; discontinuous - phpvsfiid 327675; discontinuous - phpvsfiid 327676