LOCATION STUTLER                 WA

Established Series
Rev. EMM/KMS/SHB/TJR
06/2016

STUTLER SERIES

Landform--channeled scablands
Landscape--outwash terraces, outwash plains
Slope--0 to 15 percent
Parent material--sandy and gravelly glaciofluvial deposits with a minor amount of volcanic ash and loess in upper part
Mean annual precipitation--about 430 mm
Mean annual air temperature--about 8 degrees C
Depth class--very deep
Drainage class--well drained
Soil moisture regime--xeric
Soil temperature regime--mesic
Soil moisture subclass--typic

TAXONOMIC CLASS: Loamy-skeletal, isotic, mesic Vitrandic Haploxerepts

TYPICAL PEDON: Stutler gravelly ashy silt loam in a ponderosa pine forest, on a west-facing, 2-percent slope at an elevation of 740 m (When described on May 16, 2000, the soil was moist throughout. All textures are apparent field textures.)

Oi--0 to 3 cm; slightly decomposed plant material; 1.5-mm-thick discontinuous band of 1980 Mount St. Helens ash along boundary between Oi and A horizons; abrupt smooth boundary

A--3 to 13 cm; gravelly ashy silt loam, brown (10YR 5/3) dry, very dark grayish brown (10YR 3/2) moist; moderate fine and medium subangular blocky structure; slightly hard, very friable, nonsticky and slightly plastic; common very fine and medium and few fine and coarse roots; common very fine tubular and irregular pores; 20 percent subangular and subrounded basalt gravel and 3 percent subangular basalt cobbles; slightly acid (pH 6.2); clear smooth boundary

Bw1--13 to 30 cm; gravelly ashy silt loam, pale brown (10YR 6/3) dry, brown (10YR 4/3) moist; moderate medium and coarse subangular blocky structure; slightly hard, very friable, slightly sticky and slightly plastic; common very fine, coarse, and very coarse, few fine, and many medium roots; common very fine tubular and irregular pores; 25 percent subangular and subrounded basalt gravel and 5 percent subangular basalt cobbles; slightly acid (pH 6.3); clear smooth boundary

Bw2--30 to 56 cm; very cobbly silt loam, light yellowish brown (10YR 6/4) dry, brown (10YR 4/3) moist; moderate fine and medium subangular blocky structure; moderately hard, very friable, slightly sticky and slightly plastic; common very fine and coarse, few fine and very coarse, and many medium roots throughout; common very fine and few fine irregular pores and common very fine and few medium tubular pores; 30 percent subangular and subrounded basalt gravel, 25 percent subangular basalt cobbles, and 3 percent subangular basalt stones; slightly acid (pH 6.5); clear smooth boundary

Bw3--56 to 81 cm; extremely cobbly loam, light yellowish brown (10YR 6/4) dry, brown (10YR 4/3) moist; moderate fine and medium subangular blocky structure; slightly hard, very friable, slightly sticky and slightly plastic; few very fine, fine, and coarse and common medium roots; common very fine and fine irregular pores and common very fine and few medium tubular pores; 45 percent subangular and subrounded basalt gravel, 25 percent subangular basalt cobbles, and 4 percent subangular basalt stones; neutral (pH 6.6); clear wavy boundary

Bq1--81 to 107 cm; extremely gravelly coarse sandy loam, pale brown (10YR 6/3) dry, brown (10YR 4/3) moist; single grain; soft, loose, nonsticky and nonplastic; few very fine, fine, and coarse and common medium roots throughout; common very fine and fine irregular pores; 20 percent discontinuous distinct dark brown (7.5YR 3/3) silica coatings on bottom of rock fragments; 55 percent subangular and subrounded basalt gravel, 20 percent subangular basalt cobbles, and 2 percent subangular basalt stones; neutral (pH 6.7); clear irregular boundary

Bq2--107 to 155 cm; variegated extremely gravelly loamy coarse sand; single grain; loose, nonsticky and nonplastic; few fine, coarse, and very coarse and common medium roots throughout; common very fine, fine, medium, and coarse interstitial pores; 10 percent patchy distinct brown (10YR 4/3) silica coatings on bottom of rock fragments; 74 percent subangular and subrounded basalt gravel, 10 percent subangular basalt cobbles, and 1 percent subangular basalt stones; neutral (pH 6.7)

TYPE LOCATION: Spokane County, Washington, about 8 km southeast of Marshall, Washington; about 550 m east and 595 m south of the northwest corner of section 8, T. 23 N., R. 43 E.; Spokane SW, Washington, U.S. Geological Survey topographic quadrangle; latitude 47.5018387, longitude -117.4042740, datum WGS 84 (coordinates measured with a GPS)

RANGE IN CHARACTERISTICS:
Depth to diagnostic horizons and other features are measured from the top of the first mineral layer.

Mean annual soil temperature--9 to 11 degrees C
Moisture control section--dry 75 to 90 days following summer solstice (July through September); moist in October through June
Content of clay in particle-size control section--4 to 18 percent
Depth to sandy-skeletal material--100 to 140 cm
Percentage of surface covered with stones and boulders--0 to 15 percent
Base saturation--more than 60 percent (by NH4OAc) in all horizons between depths of 25 and 75 cm
Thickness of layers influenced by volcanic ash--18 to 36 cm

Estimated properties of layers influenced by volcanic ash
*Content of volcanic glass in 0.02- to 2-mm fraction--5 to 20 percent
*Acid oxalate Al plus 1/2 Fe--0.4 to 1.0 percent
*Moist bulk density--1.15 to 1.35 g/cm3

Oi horizon
*Thickness--0 to 4 cm

A horizon
*Hue--7.5YR, 10YR
*Value--3 to 6 dry or moist
*Chroma--2 to 4 dry or moist
*Texture--ashy silt loam, ashy loam
*Content of clay--8 to 20 percent
*Content of gravel--15 to 25 percent
*Content of cobbles--0 to 10 percent
*Content of stones--0 to 10 percent
*Content of boulders--0 to 5 percent
*Total content of rock fragments--15 to 30 percent
*Reaction--6.1 to 7.3
*Thickness--5 to 18 cm

Bw1 horizon
*Hue--7.5YR, 10YR
*Value--5 or 6 dry, 3 to 5 moist
*Chroma--3 or 4 dry or moist
*Texture--ashy silt loam, ashy loam
*Content of clay--7 to 18 percent
*Content of gravel--10 to 35 percent
*Content of cobbles--0 to 15 percent
*Content of stones--0 to 10 percent
*Content of boulders--0 to 5 percent
*Total content of rock fragments--15 to 50 percent
*Reaction--6.1 to 7.3
*Thickness--13 to 25 cm

Bw2 and Bw3 horizons
*Hue--7.5YR, 10YR
*Value--5 to 7 dry, 3 to 5 moist
*Chroma--3 or 4 dry or moist
*Texture--silt loam, loam, sandy loam, coarse sandy loam
*Content of clay--4 to 18 percent
*Content of gravel--10 to 60 percent
*Content of cobbles--5 to 35 percent
*Content of stones--0 to 35 percent
*Content of boulders--0 to 40 percent
*Total content of rock fragments--35 to 75 percent
*Silica accumulation--coatings on bottom of rock fragments in some pedons
*Reaction--6.1 to 7.3
*Combined thickness of Bw2 and Bw3 horizons--30 to 75 cm

Bq horizon
*Hue--10YR, 7.5YR, variegated
*Value--5 to 7 dry, 4 or 5 moist
*Chroma--3 or 4 dry or moist
*Texture--loam, sandy loam, or coarse sandy loam in upper part; loamy coarse sand, sand, or coarse sand in lower part
*Content of clay--4 to 18 percent in upper part; 0 to 7 percent in lower part
*Content of gravel--10 to 75 percent
*Content of cobbles--0 to 40 percent
*Content of stones--0 to 40 percent
*Content of boulders--0 to 40 percent
*Total content of rock fragments--35 to 85 percent
*Reaction--6.1 to 7.3
*Thickness--18 to 25 cm or more

COMPETING SERIES:
Dehart--metasedimentary rock fragments; no sandy-skeletal layer within a depth of 140 cm
Macreeing--100 to 150 cm to lithic contact; dry 60 to 75 consecutive days following summer solstice
Olete--50 to 75 cm to lithic contact; dry 60 to 80 consecutive days following summer solstice
McGuire--glacial flood deposits derived dominantly from granite, gneiss, and schist; dry 60 to 75 days; 65 to 100 cm deep to sand and gravel
Tukey--90 to 140 cm deep to cemented ortstein pan; dry 60 to 75 consecutive days following summer solstice

GEOGRAPHIC SETTING:
Elevation--580 to 760 m
Climate--warm, dry summers; cool, moist winters
Mean annual precipitation--380 to 510 mm
Mean annual air temperature--8 to 10 degrees C
Frost-free period--100 to 130 days

GEOGRAPHICALLY ASSOCIATED SOILS:
Alecanyon--sandy-skeletal; on outwash plains
Cheney--coarse-loamy over sandy or sandy-skeletal; on outwash plains
Springdale--sandy-skeletal; on outwash plains and terraces

DRAINAGE AND SATURATED HYDRAULIC CONDUCTIVITY:
Drainage class--well drained
Saturated hydraulic conductivity (Ksat)--moderately high in upper part; very high in lower part

USE AND VEGETATION:
Use--dominantly homesite development and livestock grazing; some areas of wildlife habitat and watershed
Potential natural vegetation--ponderosa pine, Idaho fescue, bluebunch wheatgrass, Sandberg bluegrass, Wyeth eriogonum, arrowleaf balsamroot, common yarrow, lupine, common snowberry, common chokecherry, Saskatoon serviceberry, rose, Thurber's needlegrass, threadleaf sedge, Columbia needlegrass

DISTRIBUTION AND EXTENT: Eastern Washington; MLRA 9; small extent

MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Portland, Oregon.

SERIES ESTABLISHED: Spokane County, Washington; 2012

REMARKS:
Diagnostic horizons and other features in this pedon
*Ochric epipedon
*Cambic horizon--zone from 13 to 81 cm
*Particle-size control section--zone from 28 to 104 cm
*Vitrandic feature--zone from 3 to 30 cm

Significant areas of the Stutler series were previously mapped as the Hesseltine series in Spokane County.

The Stutler series was updated in 2006 to allow for the presence of boulders and stones in the subsurface layer. Significant areas of the Stutler series that have a bouldery or stony subsoil were observed in 2005 in Spokane County.

This series is correlated to a ponderosa pine/common snowberry (PIPO/SYAL) habitat type.

6/2016--This official series description (OSD) was updated as part of the final correlation of the Spokane County, Washington, soil survey. The formatting was updated according to SSR1 Technical Note 11--Content and Format of Official Series Descriptions (revised 12/2015).

ADDITIONAL DATA:
Laboratory data--soil survey sample number 00WA063001; Spokane County, Washington; Kellogg Soil Survey Laboratory pedon number 01P0250

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National Cooperative Soil Survey
U.S.A.