IDENTIFIERS

Current Taxon Name (Soil Name): Naff

OSD

Series Extent

User Site ID: S1985WA075006

User Pedon ID: 85WA075006

Vegetation Plot ID: S1985WA075006

Lab Information:

Certified Lab Pedon Description - no

Lab Source ID - SSL

Lab Pedon # - 86P0068

NCSS Pedon Lab Data NASIS Record ID - 57873

Print Date: 2/17/2025

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: 46.9874992

Std. Longitude: -117.4772186

Datum: WGS84

Township: 17N

Range: 42E

Section: 11

PLSS Details: 850 feet S and 2,180 feet W of NE corner

Location Description: About 6 mi E of Steptoe, WA.

State: Washington

County: WA075—Whitman

MLRA: 9—Palouse and Nez Perce Prairies

PEDON

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

Pedon Purpose: full pedon description

Pedon Record Orgin: Converted from SSL-CMS data

Pedon #: 6

Sampled As Information:

Soil Name - Naff

Taxonomic Class - Fine-silty, mixed Ultic Argixerolls

PSC - 27 to 77 cm.

Classificaton Date - 9/1/1985

Moisture Class - xeric

Dynamic Soil Properties:

Erosion Class - 3

Pedoderm Loose Cover Indicator - no

Hydric: no

SITE

Landscape: hills

Landform: hillside or mountainside

Hill Slope Profile: backslope

Slope Position: middle third

Slope Shape Down: linear

Runoff: high

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 - crop cover

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 argillic horizon	0—27 27—249	—- —-

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
34	—	—	702	—	135	48	—	—	9	20	-2	10	21	-1	—	—	—	—	—

1Ap1—0 to 10 centimeters (0.0 to 3.9 inches); dark grayish brown (10YR 4/2) crushed, very dark brown (10YR 2/2) crushed, moist; silt loam; strong fine granular structure; slightly hard, friable, moderately sticky, moderately plastic; 5.5 very fine roots throughout; 5.5 very fine interstitial pores; fragments; neutral, pH 6.8, bromthymol blue; abrupt smooth boundary. Lab sample # 86P00354. Vertical cracks 1.91 cm wide and 36 to 64 cm apart.; many very fine roots throughout

1Ap2—10 to 18 centimeters (3.9 to 7.1 inches); dark grayish brown (10YR 4/2) crushed, very dark brown (10YR 2/2) crushed, moist; silt loam; strong very coarse prismatic, and moderate fine platy structure; very hard, firm, moderately sticky, moderately plastic; 2.5 very fine roots throughout; 0.5 very fine interstitial pores; fragments; neutral, pH 6.8, bromthymol blue; abrupt smooth boundary. Lab sample # 86P00355. Vertical cracks 1.27 to 1.91 cm wide and 36 to 64 cm apart.; common very fine roots throughout

1Ap3—18 to 27 centimeters (7.1 to 10.6 inches); dark grayish brown (10YR 4/2) crushed, very dark grayish brown (10YR 3/2) crushed, moist; silt loam; strong very coarse prismatic, and weak fine platy structure; very hard, firm, moderately sticky, moderately plastic; 2.5 very fine roots throughout; 5.5 very fine interstitial pores; fragments; neutral, pH 6.8, bromthymol blue; abrupt wavy boundary. Lab sample # 86P00356. Vertical cracks .64 to 1.27 cm wide and 36 to 64 cm apart.; common very fine roots throughout

1BAt—27 to 42 centimeters (10.6 to 16.5 inches); yellowish brown (10YR 5/4) crushed and brown (10YR 5/3) exterior, yellowish brown (10YR 5/4) crushed and dark brown (7.5YR 3/3) exterior, moist; silty clay loam; strong coarse prismatic, and strong medium angular blocky structure; very hard, firm, moderately sticky, moderately plastic; 2.5 very fine roots throughout; 5.5 very fine tubular pores; 15 percent faint brown (10YR 5/3) clay bridges on faces of peds and in pores and 37 percent faint brown (10YR 5/3) pressure faces on faces of peds; fragments; neutral, pH 7.0, bromthymol blue; clear wavy boundary. Lab sample # 86P00357. Vertical cracks .32 to .64 cm wide and 36 to 64 cm apart with dark colored surface material on crack walls.; common pressure faces surface features on faces of peds; few clay bridging surface features on faces of peds and in pores; common very fine roots throughout; continuous - phpvsfiid 219652; patchy - phpvsfiid 219653; continuous - phpvsfiid 219652; patchy - phpvsfiid 219653

1Bt1—42 to 61 centimeters (16.5 to 24.0 inches); yellowish brown (10YR 5/4) crushed and very dark grayish brown (10YR 3/2) exterior, brown (10YR 4/3) crushed and dark brown (7.5YR 3/3) exterior, moist; silty clay loam; strong coarse prismatic, and strong medium prismatic, and strong medium angular blocky structure; very hard, firm, moderately sticky, moderately plastic; 2.5 very fine roots throughout; 5.5 very fine tubular pores; 15 percent faint brown (10YR 5/3) clay bridges on faces of peds and in pores and 37 percent faint brown (10YR 5/3) pressure faces on faces of peds; fragments; neutral, pH 7.0, bromthymol blue; clear wavy boundary. Lab sample # 86P00358. Common very coarse cicada casts, vertical cracks .16 to .64 cm wide and 51 cm apart.; common pressure faces surface features on faces of peds; few clay bridging surface features on faces of peds and in pores; common very fine roots throughout; continuous - phpvsfiid 219654; patchy - phpvsfiid 219655; continuous - phpvsfiid 219654; patchy - phpvsfiid 219655

1Bt2—61 to 83 centimeters (24.0 to 32.7 inches); yellowish brown (10YR 5/4) crushed and brown (10YR 5/3) exterior, brown (10YR 4/3) crushed and dark brown (7.5YR 3/3) exterior, moist; silty clay loam; strong coarse prismatic, and strong medium prismatic, and strong medium angular blocky structure; very hard, firm, moderately sticky, moderately plastic; 2.5 very fine roots throughout; 5.5 very fine tubular pores; 15 percent faint brown (10YR 5/3) clay bridges on faces of peds and in pores and 37 percent faint brown (10YR 5/3) pressure faces on faces of peds; fragments; neutral, pH 7.0, bromthymol blue; clear wavy boundary. Lab sample # 86P00359. Common very coarse cicada casts, few coarse vertical pores partially filled with dark colored surface material.; common pressure faces surface features on faces of peds; few clay bridging surface features on faces of peds and in pores; common very fine roots throughout; continuous - phpvsfiid 219656; patchy - phpvsfiid 219657; continuous - phpvsfiid 219656; patchy - phpvsfiid 219657

1Bt3—83 to 107 centimeters (32.7 to 42.1 inches); yellowish brown (10YR 5/4) crushed, brown (10YR 4/3) crushed and dark brown (7.5YR 3/3) exterior, moist; silty clay loam; strong coarse prismatic, and strong medium prismatic structure; very hard, firm, moderately sticky, moderately plastic; 0.5 very fine roots throughout; 5.5 very fine tubular pores; 2 percent faint clay bridges on faces of peds and in pores and 37 percent faint pressure faces on faces of peds; 1 percent spherical iron-manganese concretions; fragments; neutral, pH 7.0, bromthymol blue; clear wavy boundary. Lab sample # 86P00360. Many very corase cicada casts, few coarse vertical pores partially filled with dark colored surface material.; few very fine iron-manganese concretions concentrations; common pressure faces surface features on faces of peds; very few clay bridging surface features on faces of peds and in pores; few very fine roots throughout; continuous - phpvsfiid 219658; patchy - phpvsfiid 219659; continuous - phpvsfiid 219658; patchy - phpvsfiid 219659

1Bt4—107 to 125 centimeters (42.1 to 49.2 inches); yellowish brown (10YR 5/4) crushed, brown (10YR 4/3) crushed and dark brown (7.5YR 3/3) exterior, moist; silty clay loam; weak coarse prismatic, and weak medium prismatic, and moderate medium subangular blocky structure; hard, firm, moderately sticky, moderately plastic; 0.5 very fine roots throughout; 5.5 very fine tubular pores; 2 percent faint clay bridges on faces of peds and in pores and 37 percent faint pressure faces on faces of peds; 1 percent spherical iron-manganese concretions; fragments; neutral, pH 7.2, bromthymol blue; clear wavy boundary. Lab sample # 86P00361. Common very coarse cicada casts, few coarse vertical pores.; few very fine iron-manganese concretions concentrations; common pressure faces surface features on faces of peds; very few clay bridging surface features on faces of peds and in pores; few very fine roots throughout; continuous - phpvsfiid 219660; patchy - phpvsfiid 219661; continuous - phpvsfiid 219660; patchy - phpvsfiid 219661

1Bk1—125 to 142 centimeters (49.2 to 55.9 inches); light yellowish brown (10YR 6/4) crushed, brown (10YR 5/3) crushed, moist; silt loam; weak coarse prismatic, and weak medium prismatic structure; hard, firm, slightly sticky, slightly plastic; 0.5 very fine roots throughout; 5.5 very fine tubular pores; 37 percent faint light gray (10YR 7/2) carbonate coats in root channels and/or pores; 1 percent spherical iron-manganese concretions; fragments; moderately alkaline, pH 8.4, thymol-blue; clear wavy boundary. Lab sample # 86P00362. Few very coarse cicada casts, few coarse vertical pores.; few very fine iron-manganese concretions concentrations; common lime or carbonate coats surface features in root channels and/or pores; few very fine roots throughout; continuous - phpvsfiid 219662; continuous - phpvsfiid 219662

1Bk2—142 to 180 centimeters (55.9 to 70.9 inches); light yellowish brown (10YR 6/4) crushed, brown (10YR 4/3) crushed, moist; silt loam; weak coarse prismatic structure; slightly hard, friable, slightly sticky, slightly plastic; 0.5 very fine roots throughout; 5.5 very fine tubular pores; 37 percent faint light gray (10YR 7/2) carbonate coats in root channels and/or pores; 1 percent spherical iron-manganese concretions; 1 percent coarse spherical durinodes; fragments; violent effervescence, by hcl, unspecified; moderately alkaline, pH 8.4, thymol-blue; clear wavy boundary. Lab sample # 86P00363. Few very coarse cicada casts, few coarse vertical pores.; few coarse durinodes concentrations; few very fine iron-manganese concretions concentrations; common lime or carbonate coats surface features in root channels and/or pores; few very fine roots throughout; effervescence is continuous; continuous - phpvsfiid 219663; continuous - phpvsfiid 219663

1Bk3—180 to 201 centimeters (70.9 to 79.1 inches); light yellowish brown (10YR 6/4) crushed, brown (10YR 4/3) crushed, moist; silt loam; moderate coarse prismatic, and moderate medium prismatic structure; hard, firm, slightly sticky, slightly plastic; brittle; 0.5 very fine roots throughout; 5.5 very fine tubular pores; 37 percent distinct light gray (10YR 7/2) carbonate coats in root channels and/or pores; 1 percent spherical iron-manganese concretions; fragments; violent effervescence, by hcl, unspecified; moderately alkaline, pH 8.3, thymol-blue; clear wavy boundary. Lab sample # 86P00364. Few coarse vertical pores, discontinuous strongly cemented lense .32 cm thick 40% latteral extent at upper boundary.; few very fine iron-manganese concretions concentrations; common lime or carbonate coats surface features in root channels and/or pores; few very fine roots throughout; effervescence is discontinuous; continuous - phpvsfiid 219664; continuous - phpvsfiid 219664

1Btkb—201 to 249 centimeters (79.1 to 98.0 inches); light yellowish brown (10YR 6/4) crushed, brown (7.5YR 4/4) crushed, moist; silty clay loam; strong medium prismatic, and strong fine prismatic, and moderate medium subangular blocky structure; very hard, firm, moderately sticky, moderately plastic; 5.5 very fine tubular pores; 15 percent faint dark brown (7.5YR 3/3) clay bridges on faces of peds and in pores and 37 percent prominent white (10YR 8/1) carbonate coats on faces of peds and in pores; 11 percent spherical iron-manganese concretions; fragments; strong effervescence, by hcl, unspecified; moderately alkaline, pH 8.2, thymol-blue. Lab sample # 86P00365. Few very fine threads of lime in tubular pores and on faces of peds.; common very fine iron-manganese concretions concentrations; common lime or carbonate coats surface features on faces of peds and in pores; few clay bridging surface features on faces of peds and in pores; effervescence is discontinuous; continuous - phpvsfiid 219665; patchy - phpvsfiid 219666; continuous - phpvsfiid 219665; patchy - phpvsfiid 219666