LOCATION HEZEL                   WA+OR

Established Series
Rev. HRG/KWH/TLA
09/2019

HEZEL SERIES

Landscape--hills
Landform--dissected terraces and terrace escarpments of remnant fans
Slope--0 to 60 percent
Parent material--glaciofluvial sediment and a mantle of eolian sand
Mean annual precipitation--about 200 mm
Mean annual air temperature--about 12 degrees C
Depth class--very deep
Drainage class--somewhat excessively drained
Soil moisture regime--aridic
Soil temperature regime--mesic
Soil moisture subclass--xeric

TAXONOMIC CLASS: Sandy over loamy, mixed, superactive, nonacid, mesic Xeric Torriorthents

TYPICAL PEDON: Hezel loamy fine sand in an area of grassland (All textures are apparent field textures).

A--0 to 18 cm; loamy fine sand, brown (10YR 5/3) dry, brown (10YR 4/3) moist; weak very fine granular structure; soft, very friable, nonsticky and nonplastic; many fine roots; many very fine and fine irregular pores; moderately alkaline (pH 8.0); clear smooth boundary

C--18 to 46 cm; loamy sand, brown (10YR 5/3) dry, brown (10YR 4/3) moist; massive; soft, very friable, nonsticky and nonplastic; common fine roots; many very fine and fine irregular pores; moderately alkaline (pH 8.2); clear smooth boundary

2Ck1--46 to 69 cm; fine sandy loam, light brownish gray (2.5Y 6/2) dry, dark grayish brown (2.5Y 4/2) moist; weak coarse prismatic structure; soft, friable, nonsticky and nonplastic; common fine roots; many very fine and fine irregular pores; secondary carbonates on faces of peds; calcareous; strongly alkaline (pH 8.6); abrupt smooth boundary

2Ck2--69 to 150 cm; stratified silt loam to fine sandy loam, light gray (2.5Y 7/2) dry, grayish brown (2.5Y 5/2) moist; massive; slightly hard, firm, slightly sticky and slightly plastic; few fine roots; common very fine and fine irregular pores; secondary carbonates in seams and lenses; calcareous; strongly alkaline (pH 8.6)

TYPE LOCATION: Franklin County, Washington, about 1.6 km east of Glade; about 215 m east and 150 m north of the southwest corner of section 24, T. 10 N., R. 29 E., Willamette Meridian

RANGE IN CHARACTERISTICS:
Mean annual soil temperature--10 to 13 degrees C
Moisture control section--continuously dry from about April 1 through November 15 in most years
Depth to 2Ck horizon--40 to 90 cm
Hue--10YR or 2.5Y throughout
Depth to secondary carbonates--25 to 75 cm

Soft powdery lime segregations are in some pedons.

A horizon
Value--5 or 6 dry, 3 or 4 moist
Chroma--2 or 3 moist or dry
Organic carbon content--0.1 to 0.5 percent
Reaction--6.6 to 8.4
Thickness--13 to 25 cm

C horizon
Value--5 or 6 dry, 3 or 4 moist
Chroma--2 or 3 moist or dry
Texture--loamy fine sand, loamy sand, fine sand
Reaction--6.6 to 8.4
Thickness--25 to 76 cm

2Ck horizon
Value--5 to 7 dry, 3 to 6 moist
Chroma--1 to 3 moist or dry
Texture--stratified silt loam, very fine sandy loam, loamy very fine sand, and fine sandy loam and thin lenses of fine sand; extremely cobbly very fine sandy loam, extremely cobbly fine sandy loam, or extremely cobbly loamy sand below a depth of 100 cm in some pedons
Rock fragment content--65 to 90 percent
Reaction--7.4 to 9.0
Combined thickness--greater than 60 cm

COMPETING SERIES: None

GEOGRAPHIC SETTING:
Elevation--120 to 760 m
Climate--arid
Mean annual precipitation--150 to 250 mm
Mean January air temperature--about 2 degrees C
Mean July air temperature--about 24 degrees C
Mean annual air temperature--10 to 12 degrees C
Frost-free season--150 to 200 days

GEOGRAPHICALLY ASSOCIATED SOILS:
Koehler--on terraces; 50 to 100 cm (moderately deep) to a duripan
Quincy--on dunes and terraces; sandy throughout particle-size control section
Sagehill, Sagemoor, Warden--on terraces; no sandy textures in upper part of particle-size control section

DRAINAGE AND SATURATED HYDRAULIC CONDUCTIVITY:
Drainage class--somewhat excessively drained
Saturated hydraulic conductivity (Ksat)--high over moderately high

USE AND VEGETATION:
Use--production of irrigated crops and pasture, livestock grazing
Native vegetation--thickspike wheatgrass, needle and thread, Indian ricegrass, Wyoming big sagebrush, antelope bitterbrush

DISTRIBUTION AND EXTENT: Southeastern Washington and northeastern Oregon; MLRA 7; moderate extent

SOIL SURVEY REGIONAL OFFICE (SSRO) RESPONSIBLE: Portland, Oregon

SERIES ESTABLISHED: Walla Walla County, Washington; 1960

REMARKS:
Diagnostic horizons and other features recognized in this pedon
*Ochric epipedon
*Particle-size control section--zone from 25 to 100 cm; sandy in zone from 25 to 46 cm and coarse-silty in zone from 46 to 100 cm

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National Cooperative Soil Survey
U.S.A.