PEDON DESCRIPTION

Cont. Site ID: S2011WA053501

Pedon ID: S2011WA053501

Slope (%)	Elevation (meters)	Aspect (deg)	MAAT (C)	MSAT (C)	MWAT (C)	MAP (mm)	Frost-Free Days	Drainage Class	Slope Length (meters)	Upslope Length (meters)
5.0	1,597.0	260	3.9			1,905	90	well

Oi--0 to 2 centimeters (0.0 to 0.8 inches); slightly decomposed plant material; 70 percent sand; 28 percent silt; 3 percent clay; many fine high-continuity interstitial pores; abrupt wavy boundary. Thin discontinuous tephra between Oi and Oe horizons, likely Mt. St. Helens 1980 tephra.

Oe--2 to 4 centimeters (0.8 to 1.6 inches); moderately decomposed plant material; 70 percent sand; 28 percent silt; 3 percent clay; many very fine roots throughout and common very coarse roots throughout and common medium roots throughout and many fine roots throughout and common coarse roots throughout; many fine moderate-continuity interstitial pores; abrupt wavy boundary.

E--4 to 16 centimeters (1.6 to 6.3 inches); dark brown (7.5YR 3/2) crushed medial sandy loam, brown (7.5YR 5/2) crushed, dry; 70 percent sand; 28 percent silt; 3 percent clay; weak fine subangular blocky structure; soft, very friable, nonsticky, nonplastic; common very fine roots throughout and common medium roots throughout and common fine roots throughout and common coarse roots throughout; common very fine low-continuity interstitial and common fine low-continuity interstitial pores; 5 percent nonflat subangular moderately coherent cemented 5 to 75-millimeter Pumice fragments, pH indicator strip; abrupt irregular boundary. Lab sample # 13N01077. Horizon likely Mt. St. Helens Wn tephra.

Bhs--16 to 30 centimeters (6.3 to 11.8 inches); 50 percent dark reddish brown (5YR 3/4) broken face and 50 percent dark brown (7.5YR 3/2) broken face paragravelly medial sandy loam, brown (7.5YR 5/2) broken face, dry; 60 percent sand; 36 percent silt; 4 percent clay; strong coarse subangular blocky structure; slightly hard, friable, nonsticky, nonplastic; few very fine roots throughout and few medium roots throughout and few fine roots throughout; common very fine low-continuity interstitial and common fine low-continuity interstitial pores; 5 percent nonflat subangular moderately coherent cemented 2 to 5-millimeter Pumice fragments and 15 percent nonflat subangular moderately coherent cemented 5 to 75-millimeter Pumice fragments, pH indicator strip; clear irregular boundary. Lab sample # 13N01078

Bs--30 to 48 centimeters (11.8 to 18.9 inches); brown (7.5YR 4/4) broken face medial sandy loam, brown (7.5YR 5/3) broken face, dry; 60 percent sand; 36 percent silt; 4 percent clay; strong coarse subangular blocky structure; slightly hard, friable, nonsticky, nonplastic; few very fine roots throughout and few medium roots throughout and few fine roots throughout; common very fine moderate-continuity irregular and common fine moderate-continuity irregular pores; 5 percent nonflat subrounded moderately coherent cemented 5 to 75-millimeter Pumice fragments, pH indicator strip; clear irregular boundary. Lab sample # 13N01079. Horizon likely Mt. St. Helens Yn tephra. Fragments are pumice, 10YR 6/3 moist.

Bhsb--48 to 60 centimeters (18.9 to 23.6 inches); 60 percent dark brown (7.5YR 3/3) broken face and 40 percent very dark brown (7.5YR 2.5/2) broken face medial sandy loam, brown (7.5YR 5/3) broken face, dry; 60 percent sand; 35 percent silt; 5 percent clay; strong coarse subangular blocky structure; moderately hard, firm, nonsticky, nonplastic; few very fine roots throughout and few fine roots throughout; common very fine moderate-continuity irregular and common fine moderate-continuity irregular pores; 5 percent nonflat subangular indurated 5 to 75-millimeter Andesite fragments, pH indicator strip; clear irregular boundary. Lab sample # 13N01080

Bsb--60 to 74 centimeters (23.6 to 29.1 inches); brown (10YR 4/3) crushed gravelly medial fine sandy loam, pale brown (10YR 6/3) crushed, dry; 55 percent sand; 40 percent silt; 5 percent clay; strong coarse subangular blocky structure; slightly hard, friable, nonsticky, nonplastic; few very fine roots throughout and few fine roots throughout; common very fine moderate-continuity irregular and common fine moderate-continuity irregular pores; 5 percent nonflat subangular indurated 2 to 5-millimeter Andesite fragments and 15 percent nonflat subangular indurated 5 to 75-millimeter Andesite fragments, pH indicator strip; clear irregular boundary. Lab sample # 13N01081

2BC--74 to 84 centimeters (29.1 to 33.1 inches); brown (10YR 4/3) crushed medial fine sandy loam, pale brown (10YR 6/3) crushed, dry; 55 percent sand; 40 percent silt; 5 percent clay; strong coarse subangular blocky structure; moderately hard, firm, nonsticky, nonplastic; few very fine roots throughout; common very fine moderate-continuity irregular and common fine moderate-continuity irregular pores; 5 percent nonflat subangular indurated 5 to 75-millimeter Andesite fragments and 5 percent nonflat subangular indurated 2 to 5-millimeter Andesite fragments, pH indicator strip; abrupt irregular boundary. Lab sample # 13N01082

2R--84 to 150 centimeters (33.1 to 59.1 inches); indurated Granite bedrock, fractured at intervals of 10 to less than 45 centimeters; .