LOCATION KITSAP                  WA

Established Series
Rev. JPE/CRF/EED
10/2018

KITSAP SERIES

Landscape--plains
Landform--terraces and terrace escarpments
Slope--0 to 70 percent
Parent material--glacial lacustrine sediments
Mean annual precipitation--about 940 mm
Mean annual temperature--about 10 degrees C
Depth class--very deep
Drainage class--somewhat poorly drained
Soil moisture regime--aquic
Soil temperature regime--mesic
Soil moisture subclass--oxyaquic

TAXONOMIC CLASS: Fine-silty, isotic, nonacid, mesic Aeric Endoaquepts

TYPICAL PEDON: Kitsap silt loam, pasture

Ap--0 to 15 cm; silt loam, grayish brown (10YR 5/2) dry, very dark grayish brown (10YR 3/2) moist; moderate fine subangular blocky structure; slightly hard, friable, slightly sticky and slightly plastic; many very fine and fine roots; moderately acid (pH 5.8); abrupt smooth boundary

Bwl--15 to 25 cm; silt loam, pale brown (10YR 6/3) dry, brown (10YR 4/3) moist; moderate fine subangular blocky structure; slightly hard, friable, slightly sticky and slightly plastic; many very fine and fine roots; few very fine pores; many 2 to 5 mm light brown (7.5YR 6/4) concretions; moderately acid (pH 6.0); clear wavy boundary

Bw2--25 to 43 cm; silty clay loam, pale brown (10YR 6/3) dry, brown (10YR 4/3) moist; moderate medium subangular blocky structure; hard, firm, moderately sticky and moderately plastic; many very fine and fine roots; common very fine pores; 5 percent fine gravel; few 2 to 5 mm light brown (7.5YR 6/4) concretions; slightly acid (pH 6.4); clear wavy boundary

Bg--43 to 81 cm; silty clay loam, light gray (2.5Y 7/2) dry, grayish brown (2.5Y 5/2) moist; moderate medium subangular blocky structure; hard, firm, moderately sticky and moderately plastic; few very fine roots; common very fine and fine pores; many large prominent strong brown (7.5YR 5/6) masses of oxidized iron throughout; slightly acid (pH 6.5); clear irregular boundary

Cg--81 to 150 cm; silty clay loam, light brownish gray (2.5Y 6/2) dry, light olive brown (2.5Y 5/4) moist; massive; hard, firm, moderately sticky and moderately plastic; few roots; few very fine pores; common distinct grayish brown (2.5Y 5/2) iron depletions throughout; neutral (pH 6.6)

TYPE LOCATION: Pierce County, Washington, about 1.5 km south of Fruitwood Elementary School; 960 m west and 865 m south of the northeast corner of sec. 5, T. 19 N., R. 4 E., Willamette Meridian; Puyallup, Washington, U.S. Geological Survey quadrangle; latitude 47.162 degrees north, 122.324 degrees west, WGS 84 (coordinates estimated from PLSS details)

RANGE IN CHARACTERISTICS:
*Mean annual soil temperature--10 to 12 degrees C
*Soil moisture control section--dry 45 to 60 days following the summer solstice
*Depth to aquic conditions--30 to 50 cm
*Gravel content--0 to 5 percent
*Reaction (pH)--5.1 to 7.3

Particle size control section (weighted average):
*Clay content: 20 to 35 percent
*Sand content: 0 to 15 percent

A horizon
Hue--7.5YR or 10YR
Value--2.5 to 5 moist, 3 to 6 dry
Chroma--2 or 3 moist, 2 to 4 dry
Fine-earth texture--silt loam, loam
Thickness--10 to 15 cm

Bw horizon
Hue--7.5YR, 10YR, 2.5Y, 5Y
Value--3 or 4 moist, 5 or 6 dry
Chroma--3 or 4 moist, 2 to 4 dry
Fine-earth texture--silt loam, silty clay loam
Thickness--10 to 20 cm

Bg horizon
Hue--7.5YR, 10YR, 2.5Y
Value--4 or 5 moist, 6 or 7 dry
Chroma--2 to 4 moist or dry
Fine-earth texture--silty clay loam, silt loam
Thickness--15 to 30 cm

Cg horizon
Hue--2.5Y, 5Y
Value--6 or 7 dry
Chroma--2 to 4 moist or dry
Fine-earth texture--silt loam, silty clay loam

COMPETING SERIES: There are no competing series

GEOGRAPHIC SETTING:
Elevation--0 to 165 m
Mean annual precipitation--760 to 1100 mm
Mean annual air temperature--10 C
Frost-free period--160 to 240 days

GEOGRAPHICALLY ASSOCIATED SOILS:
Alderwood, Harstine--have a densic contact; lack aquic conditions within 30 cm of the soil surface; on adjacent hills and ridges
Everett, Indianola--lack aquic conditions; on adjacent hills, terraces, and glacial drift plains

DRAINAGE AND SATURATED HYDRAULIC CONDUCTIVITY:
*Drainage class--somewhat poorly drained
*Depth to apparent seasonal water table--30 to 90 cm at times from December to May
*Saturated hydraulic conductivity (Ksat)--high in the A, Bw, and Bg horizons, moderately high in the Cg horizon

USE AND VEGETATION:
*Use--timber production, crop production, and livestock grazing in cleared areas
*Potential natural vegetation--Douglas-fir, western hemlock, western redcedar, red alder, bigleaf maple, and willows, with understory of western brackenfern, western swordfern, salal, Oregon-grape, trailing blackberry, red huckleberry, vine maple, evergreen huckleberry, red elderberry, and wild ginger

DISTRIBUTION AND EXTENT: Western Washington; MLRA 2 moderate extent.

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

SERIES ESTABLISHED: Kitsap County, Washington, 1934.

REMARKS: Diagnostic horizons and other features in this pedon
*Particle size control section--zone from 25 to 100 cm
*Ochric epipedon
*Cambic horizon--zone from 0 to 81 cm
*Aquic conditions--zone from 43 to 150 cm
*Endosaturation--zone from 43 to 150 cm
*Redoximorphic depletions with chroma of 2 or less--zone from 43 to 150 cm

06/2018--The soil classification was changed from fine-silty, isotic, mesic Aquandic Dystroxerepts. Existing laboratory data for this series and other geographically associated soils does not reflect the presence of adequate quantities of volcanic glass to support the Aquandic subgroup. The series concept was changed to somewhat poorly drained, with endosaturation based on a review of existing pedons and current regional standards. The official series description was edited according to SSR01 Technical Note--Content and Format of Official Series Descriptions (revised 11/2017).

ADDITIONAL DATA: Characterization data--pedon numbers S2009WA067060

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National Cooperative Soil Survey
U.S.A.