LOCATION GOODNESS WAEstablished Series
TAXONOMIC CLASS: Medial over loamy, mixed over isotic, isofrigid Eutric Pachic Fulvudands
TYPICAL PEDON: Goodness medial silt loam-forestland, on a 39 percent easterly aspect at an elevation of 1,480 feet in a Pacific silver fir/salal-deerfern plant association. (When described on July 21, 1994, the soil was moist throughout. Colors are for moist soil unless otherwise stated.)
Oi--0 to 2 inches; slightly decomposed needles, leaves, twigs, and cone fragments; abrupt smooth boundary. (1 to 4 inches thick)
Oe--2 to 3 inches; moderately decomposed organic materials; abrupt smooth boundary. (0.5 to 1.5 inches thick)
A--3 to 10 inches; dark yellowish brown (10YR 3/4) medial silt loam, yellowish brown (10YR 5/4) dry; weak very fine and fine subangular blocky and weak very fine and fine granular structure; slightly hard, friable, slightly sticky and slightly plastic; weakly smeary; many very fine and common fine, medium, and coarse roots; many very fine and fine tubular and irregular pores; 5 percent gravels; very strongly acid (pH 4.8); clear smooth boundary. (6 to 13 inches thick)
Bw1--10 to 22 inches; dark yellowish brown (10YR 3/4) medial silt loam, yellowish brown (10YR 5/4) dry; weak very fine, fine, and medium subangular blocky and weak very fine and fine granular structure; slightly hard, friable, slightly sticky and slightly plastic; weakly smeary; common very fine, fine, medium, and coarse roots; common very fine and fine tubular and irregular pores; 5 percent gravel; strongly acid (pH 5.4); clear wavy boundary.
Bw2--22 to 32 inches; dark yellowish brown (10YR 3/6) medial silt loam, brownish yellow (10YR 6/6) dry; weak very fine, fine, and medium subangular blocky and weak very fine and fine granular structure; slightly hard, friable, slightly sticky and slightly plastic; weakly smeary; common very fine and fine and few coarse roots; common very fine and fine tubular and irregular pores; 5 percent gravel; strongly acid (pH 5.4); clear wavy boundary. (Combined thickness of the Bw1 and Bw2 horizons is 15 to 25 inches)
2Bw3--32 to 55 inches; olive brown (2.5Y 4/4) silt loam, pale yellow (2.5Y 7/4) dry; weak fine, medium, and coarse subangular blocky structure; slightly hard, friable, slightly sticky and slightly plastic; weakly smeary; few very fine and fine roots; few very fine and fine tubular and irregular pores; 10 percent gravel; moderately acid (pH 5.6); clear wavy boundary.
2Bw4--55 to 63 inches; olive brown (2.5Y 4/4) cobbly silt loam, pale yellow (2.5Y 7/4) dry; weak fine, medium, and coarse subangular blocky structure; slightly hard, friable, slightly sticky and slightly plastic; weakly smeary; few very fine and fine tubular and irregular pores; 10 percent gravel, 20 percent cobbles; moderately acid (pH 5.8).
TYPE LOCATION: Clallam County, Washington, about 3.5 miles south of the Soleduck Salmon Hatchery, about 1,670 feet east and 2,375 feet south of the northwest corner of Section 19, T. 29 N., R. 12 W. (Latitude 48 degrees, 00 minutes, 13 seconds N., Longitude 124 degrees, 18 minutes, 07 seconds W.)
RANGE IN CHARACTERISTICS: The mean annual soil temperature is 43 to 47 degrees F. The mean summer soil temperature is 47 to 50 degrees F. and the mean winter soil temperature is 40 to 45 degrees F. The difference between the mean summer and mean winter soil temperature is 5 to 9 degrees F. These soils are usually moist, and are dry 0 to 30 consecutive days in the soil moisture control section; udic moisture regime. Depth to bedrock is greater than 60 inches. The upper part of the particle-size control section has andic soil properties with a cumulative thickness of 22 to 33 inches and 0 to 35 percent rock fragments. The andic soil material has an estimated moist bulk density of 0.30 to 0.70 g/cc, acid-oxalate extractable aluminum plus one half of the acid-oxalate extractable iron of 2 to 4 percent, and phosphate retention of 85 to 100 percent, 15-bar water retention of 30 to 50 percent for air dried samples, and acid oxalate iron of 0.5 to 1.5 percent. The lower part of the particle-size control section lacks andic soil properties and has a moist bulk density of over 0.90 g/cc.
The A horizon has hue of 10YR or 7.5YR moist and dry and chroma of 3 or 4 moist and dry. Reaction is very strongly or strongly acid. It has 20 to 40 percent organic matter. It has 2 to 3 cmol/kg of aluminum.
The Bw horizon has hue of 10YR or 2.5Y moist and dry, value of 3 through 5 moist and 5 through 7 dry, and chroma of 4 or 6 moist and dry. It is medial silt loam or gravelly medial loam. Reaction is strongly or moderately acid. It has 1 to 2 cmol/kg of aluminum. It has 10 to 20 percent organic matter.
The 2Bw horizon has hue of 2.5Y or 10YR moist and dry, value of 4 or 5 silt loam, cobbly silt loam, loam or gravelly loam.
COMPETING SERIES: There are no competing series.
GEOGRAPHIC SETTING: Goodness soils are on mountain slopes. Slopes are 15 to 55 percent. The soils formed in residuum and colluvium from sedimentary and metasedimentary rocks. Elevations are 800 to 2,400 feet. Average annual precipitation is 105 to 130 inches. Average annual temperature is 41 to 43 degrees F. The frost-free season is 120 to 140 days.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the Dimal, Edenvalley, and Sappho soils. Edenvalley soils are on dissected mountain slopes and glaciated mountain slopes and are medial-skeletal. Sappho soils are on moderate relief mountain slopes and dissected mountain slopes and are medial-skeletal. Dimal soils are shallow to bedrock.
DRAINAGE AND PERMEABILITY: Well drained; moderate permeability.
USE AND VEGETATION: Timber production, wildlife habitat, recreation, and watershed. Native vegetation is Pacific silver fir, western hemlock, threeleaf foamflower, Oregon oxalis, western swordfern, salal, deer fern, Alaska huckleberry, and red huckleberry.
DISTRIBUTION AND EXTENT: Clallam County, Washington; MLRA 1. Series is of small extent.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Portland, Oregon
SERIES ESTABLISHED: Clallam County, Washington, 2000; Olympic National Forest.
REMARKS: Diagnostic horizons and features recognized in this pedon are the following:
Ochric epipedon
Cambic horizon - 10 to 63 inches
Andic soil properties - 3 to 32 inches
PSCS - 3 to 43 inches (3 to 32 medial and 32 to 43 loamy)
All depths to diagnostic horizons and features are measured from the top of the first mineral horizon.