IDENTIFIERS

Current Taxon Name (Soil Name): Palouse

OSD

Series Extent

User Site ID: S1985WA075009

User Pedon ID: 85WA075009

Vegetation Plot ID: S1985WA075009

Lab Information:

Certified Lab Pedon Description - no

Lab Source ID - SSL

Lab Pedon # - 86P0071

NCSS Pedon Lab Data NASIS Record ID - 57876

Print Date: 3/13/2025

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: 46.8913879

Std. Longitude: -117.0722198

Datum: WGS84

Township: 16N

Range: 46E

Section: 7

PLSS Details: 1 mile S of Palouse, WA, 400 feet E and 1,380 feet S of NW corner

State: Washington

County: WA075—Whitman

MLRA: 9—Palouse and Nez Perce Prairies

PEDON

Describers Name: H. Gentry, R. Engel, A. Busacca, and B. Frazier

Current Taxonomic Class: Fine-silty, mixed, mesic Pachic Ultic Haploxerolls

Current Taxon Kind: series

Pedon Purpose: full pedon description

Pedon Record Orgin: Converted from SSL-CMS data

Pedon #: 9

Sampled As Information:

Soil Name - Palouse

Taxonomic Class - Fine-silty, mixed, mesic Pachic Ultic Haploxerolls

PSC - 25 to 100 cm.

Classificaton Date - 9/1/1985

Moisture Class - xeric

Dynamic Soil Properties:

Erosion Class - 1

Pedoderm Loose Cover Indicator - no

Hydric: no

SITE

Landscape: hills

Landform: hillside or mountainside

Hill Slope Profile: summit

Slope Shape Down: convex

Runoff: low

Drainage Class: well

Surface Fragments:

Benchmark Soil?: no

VEGETATION

SITE OBSERVATION

Observation Date: 9/1/1985 (actual site observation date)

Surface Cover Properties:

Site Obs. Cover Kind 1 - grass/herbaceous cover

Site Obs. Cover Kind 2 - rangeland, grassland

Pedoderm Loose Cover Indicator - no

Drained? - no

Bedded Soil? - no

Forest Plantation? - no

Site Erosion Accelerated: water erosion

Vegetation Plot Plants
Plant Symbol	Scientific Name	National Vernacular Name	Plant Type Group	Canopy Cover %	Vegetation Stata Level
AGSP FEID	Agropyron spicatum Festuca idahoensis	— Idaho fescue	— —	— —	— —

Pedon Diagnostic Features
Feature Kind	Feature Depth L-H	Feature Thickness L-RV-H
	cm
mollic epipedon cambic horizon	0—107 107—157	—- —-

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
4	—	—	784	—	135	56	—	—	9	20	-2	10	21	-1	—	—	—	—	—

1A1—0 to 10 centimeters (0.0 to 3.9 inches); dark gray (10YR 4/1) crushed, black (10YR 2/1) interior, moist; silt loam; strong medium granular, and strong fine granular structure; slightly hard, friable, slightly sticky, slightly plastic; 5.5 very fine roots throughout and 0.5 fine roots throughout; 5.5 very fine interstitial pores; fragments; neutral, pH 7.0, bromthymol blue; clear smooth boundary. Lab sample # 86P00388. many very fine roots throughout; few fine roots throughout

1A2—10 to 25 centimeters (3.9 to 9.8 inches); dark gray (10YR 4/1) crushed, black (10YR 2/1) interior, moist; silt loam; strong medium granular structure; slightly hard, friable, slightly sticky, slightly plastic; 5.5 very fine roots throughout and 0.5 fine roots throughout; 5.5 very fine interstitial pores; fragments; neutral, pH 7.0, bromthymol blue; gradual smooth boundary. Lab sample # 86P00389. many very fine roots throughout; few fine roots throughout

1A3—25 to 48 centimeters (9.8 to 18.9 inches); dark grayish brown (10YR 4/2) crushed, very dark brown (10YR 2/2) interior, moist; silt loam; moderate medium prismatic, and moderate medium subangular blocky structure; hard, friable, slightly sticky, slightly plastic; 5.5 very fine roots throughout and 0.5 fine roots throughout; 5.5 very fine interstitial pores; fragments; neutral, pH 7.0, bromthymol blue; clear smooth boundary. Lab sample # 86P00390. many very fine roots throughout; few fine roots throughout

1AB—48 to 74 centimeters (18.9 to 29.1 inches); 90 percent brown (10YR 5/3) interior and 10 percent pale brown (10YR 6/3) interior, 90 percent very dark grayish brown (10YR 3/2) interior and 10 percent brown (10YR 4/3) interior, moist; silt loam; moderate medium prismatic structure; hard, friable, slightly sticky, slightly plastic; 2.5 very fine roots throughout and 0.5 fine roots throughout; 5.5 very fine tubular pores; fragments; neutral, pH 7.0, bromthymol blue; gradual wavy boundary. Lab sample # 86P00391. Few coarse vertical pores lined with dark colored surface material, many continuous prominent dark grayish brown (10YR 4/2) coats on vertical faces of coarse prisms.; common very fine roots throughout; few fine roots throughout

1BA—74 to 79 centimeters (29.1 to 31.1 inches); 70 percent brown (10YR 5/3) interior and 30 percent pale brown (10YR 6/3) interior, 70 percent very dark grayish brown (10YR 3/2) interior and 30 percent brown (10YR 4/3) interior, moist; silt loam; moderate coarse prismatic, and moderate medium subangular blocky structure; hard, friable, slightly sticky, slightly plastic; 2.5 very fine roots throughout and 0.5 fine roots throughout; 5.5 very fine tubular pores; fragments; neutral, pH 7.0, bromthymol blue; diffuse wavy boundary. Lab sample # 86P00392. Common coarse vertical pores lined with and partially filled with dark colored surface material, many continuous prominent dark grayish brown (10YR 4/2) coats on vertical faces of coarse prisms.; common very fine roots throughout; few fine roots throughout

1Bw1—79 to 107 centimeters (31.1 to 42.1 inches); pale brown (10YR 6/3) crushed, brown (10YR 4/3) interior, moist; silt loam; moderate coarse prismatic, and moderate medium subangular blocky structure; hard, friable, slightly sticky, slightly plastic; 2.5 very fine roots throughout and 0.5 fine roots throughout; 5.5 very fine tubular pores; fragments; neutral, pH 7.0, bromthymol blue; clear wavy boundary. Lab sample # 86P00393. Common coarse vertical pores lined with and partially filled with dark colored surface material, common continuous prominent dark grayish brown (10YR 4/2) coats on vertical faes of coarse prisms.; common very fine roots throughout; few fine roots throughout

1Bw2—107 to 140 centimeters (42.1 to 55.1 inches); pale brown (10YR 6/3) crushed, brown (10YR 4/3) interior, moist; silt loam; weak coarse prismatic, and weak medium subangular blocky structure; hard, firm, slightly sticky, slightly plastic; 2.5 very fine roots throughout and 0.5 fine roots throughout; 5.5 very fine tubular pores; fragments; slightly alkaline, pH 7.8, bromthymol blue; abrupt irregular boundary. Lab sample # 86P00394. Common coarse vertical pores lined with and partially filled with dark colored surface material.; common very fine roots throughout; few fine roots throughout

1Bk1—140 to 157 centimeters (55.1 to 61.8 inches); pale brown (10YR 6/3) crushed, brown (10YR 4/3) interior, moist; silt loam; weak coarse prismatic structure; hard, firm, slightly sticky, slightly plastic; 0.5 very fine roots throughout; 5.5 very fine tubular pores; 2 percent faint light gray (10YR 7/2) carbonate coats in root channels and/or pores; fragments; very slight effervescence, by hcl, unspecified; slightly alkaline, pH 7.8, cresol red; clear wavy boundary. Lab sample # 86P00395. Few coarse vertical pores lined with and partially filled with dark colored material.; very few lime or carbonate coats surface features in root channels and/or pores; few very fine roots throughout; effervescence is discontinuous; discontinuous - phpvsfiid 219672; discontinuous - phpvsfiid 219672

1Bk2—157 to 178 centimeters (61.8 to 70.1 inches); pale brown (10YR 6/3) crushed, brown (10YR 4/3) interior, moist; silt loam; weak coarse prismatic structure; hard, friable, slightly sticky, slightly plastic; 0.5 very fine roots throughout; 5.5 very fine tubular pores; 37 percent prominent white (10YR 8/1) carbonate coats in root channels and/or pores; fragments; strong effervescence, by hcl, unspecified; moderately alkaline, pH 8.3, thymol-blue; clear wavy boundary. Lab sample # 86P00396. Few coarse vertical pores lined with lime and white fungus.; common lime or carbonate coats surface features in root channels and/or pores; few very fine roots throughout; effervescence is discontinuous; continuous - phpvsfiid 219673; continuous - phpvsfiid 219673

1Bk3—178 to 198 centimeters (70.1 to 78.0 inches); pale brown (10YR 6/3) crushed, brown (10YR 4/3) interior, moist; silt loam; weak coarse prismatic structure; hard, friable, slightly sticky, slightly plastic; 0.5 very fine roots throughout; 5.5 very fine tubular pores; 2 percent distinct light gray (10YR 7/2) carbonate coats in root channels and/or pores; fragments; very slight effervescence, by hcl, unspecified; slightly alkaline, pH 7.8, cresol red; clear wavy boundary. Lab sample # 86P00397. Very few very fine roots in coarse vertical pores, few coarse vertical pores.; very few lime or carbonate coats surface features in root channels and/or pores; few very fine roots throughout; effervescence is discontinuous; discontinuous - phpvsfiid 219674; discontinuous - phpvsfiid 219674

1Btb—198 to 270 centimeters (78.0 to 106.3 inches); pale brown (10YR 6/3) crushed, brown (10YR 4/3) crushed, moist; silt loam; weak coarse prismatic structure; hard, friable, slightly sticky, slightly plastic; 5.5 very fine tubular pores; 2 percent faint 7.5YR 4/ (7.5YR 4/) clay films on faces of peds and in pores; 1 percent spherical iron-manganese concretions; fragments; slightly alkaline, pH 7.6, cresol red. Lab sample # 86P00398. Few coarse vertical pores.; few very fine iron-manganese concretions concentrations; very few clay films surface features on faces of peds and in pores; patchy - phpvsfiid 219675; patchy - phpvsfiid 219675