LOCATION FAN LAKE WA
Established Series
Rev. EMM/RL/RJS
06/2016
FAN LAKE SERIES
The Fan Lake series consists of very deep, moderately well drained soils formed in glaciofluvial deposits or Latah formation with a thin mantle of volcanic ash and loess. Fan Lake soils are on relict glacial lake terraces, outwash terraces and convex toeslopes of foothills. Slopes are 0 to 25 percent. The mean annual precipitation is about 25 inches and the mean annual temperature is about 43 degrees F.
TAXONOMIC CLASS: Fine-loamy, isotic, frigid Andic Haploxeralfs
TYPICAL PEDON: Fan Lake ashy very fine sandy loam, cropped; on a 2 percent slope at an elevation of 2,270 feet. (When described on September 23, 2002 the soil was dry to 57 inches and moist from 57 to 60 inches. Colors are for dry soil unless otherwise noted. All textures are apparent field textures.)
Ap--0 to 4 inches; brown (10YR 5/3) ashy very fine sandy loam, dark brown (10YR 3/3) moist; moderate fine subangular blocky structure; soft, very friable, nonsticky and nonplastic; weakly smeary; many fine and medium, and few coarse roots; common fine irregular pores; neutral (pH 7.0); clear smooth boundary. (3 to 8 inches thick)
AB--4 to 8 inches; pale brown (10YR 6/3) ashy very fine sandy loam, brown (10YR 4/3) moist; moderate thin platy structure; soft, friable, nonsticky and nonplastic; weakly smeary; common fine, and few medium and coarse roots; common very fine irregular pores; neutral (pH 7.0); clear smooth boundary. (4 to 6 inches thick)
Bw--8 to 16 inches; light yellowish brown (10YR 6/4) ashy fine sandy loam, dark yellowish brown (10YR 4/4) moist; moderate medium subangular blocky structure; slightly hard, friable, slightly sticky and nonplastic; common fine, and few medium and coarse roots; common fine irregular pores; slightly acid (pH 6.2); clear smooth boundary. (5 to 14 inches thick)
2E--16 to 24 inches; pale yellow (2.5Y 7/3) fine sandy loam, light olive brown (2.5Y 5/3) moist; moderate medium subangular blocky structure; slightly hard, friable, slightly sticky and nonplastic; common fine roots; many fine irregular pores; 1 percent gravel; slightly acid (pH 6.5); gradual wavy boundary. (1 to 9 inches thick)
2E/Bt--24 to 36 inches; 70 percent pale yellow (2.5Y 7/3) loam, light olive brown (2.5Y 5/3) moist (E part); 30 percent light yellowish brown (2.5Y 6/4) loam, olive brown (2.5Y 4/4) moist (Bt part); moderate medium subangular blocky structure; slightly hard, friable, moderately sticky and moderately plastic; few fine roots; many fine irregular pores; 20 percent distinct clay films on faces of peds; 1 percent gravel; neutral (pH 6.6); gradual wavy boundary. (0 to 18 inches thick)
2Btx--36 to 51 inches; light yellowish brown (2.5Y 6/4) clay loam, olive brown (2.5Y 4/4) moist; strong coarse angular blocky structure; hard, firm, moderately sticky and moderately plastic; few fine roots ; many fine irregular pores; 30 percent distinct dark yellowish brown (10YR 4/4), moist, clay films on all faces of peds and 1 percent prominent black (10YR 2/1), moist, organic stains; 2 percent distinct yellowish brown (10YR 5/4), moist, masses of oxidized iron; 30 percent fragic properties; 1 percent gravel; neutral (pH 6.6); clear wavy boundary. (7 to 20 inches thick)
3C1--51 to 57 inches; light yellowish brown (2.5Y 6/3) fine sandy loam, olive brown (2.5Y 4/3) moist; massive; soft, very friable, slightly sticky and slightly plastic; common fine irregular pores; 2 percent distinct yellowish brown (10YR 5/4), moist, masses of oxidized iron; slightly acid (pH 6.5); clear wavy boundary.
3C2--57 to 60 inches; light yellowish brown (10YR 6/4) sandy clay loam, dark yellowish brown (10YR 4/4) moist; massive; slightly hard, friable, moderately sticky and moderately plastic; common fine irregular pores; 2 percent prominent dark grayish brown (2.5Y 4/2), moist, iron depletions and 2 percent faint yellowish brown (10YR 5/4), moist, masses of oxidized iron; slightly acid (pH6.5). (Combined thickness of 3C horizon is 9 to 23 inches)
TYPE LOCATION: Spokane, Washington; About 5 miles northwest of Deer Park, WA; About 1,200 feet east and 200 feet south of the NW corner of section 9, T. 29 N., R. 42 E., WM; USGS Deer Lake, Wash. topographic quadrangle; (Latitude 48 degrees, 01 minutes, 56 seconds N. and Longitude 117 degrees, 31 minutes, 05 seconds W.) NAD 83.
RANGE IN CHARACTERISTICS:
Mean annual soil temperature - 44 to 46 degrees F.
Moisture control section - dry 45 to 60 days after the summer solstice, July to September, moist October through June
Depth to argillic horizon - 20 to 40 inches
Depth to fragic properties - 20 to 40 inches
Depth to redox concentrations - 20 to 40 inches
Volcanic ash mantle with andic soil properties - 7 to 14 inches thick
Estimated properties of the volcanic ash mantle:
Volcanic glass content in the 0.02 to 2 mm fraction - 30 to 60 percent
Acid-oxalate extractable Al plus 1/2 Fe 1.0 to 2.0 percent
Moist bulk density - 0.60 to 1.0 g/cc
15 bar water retention - 5 to 12 percent for air dried samples
Vitrandic properties 5 to 14 inches thick
Estimated properties of the volcanic ash influenced layers:
Volcanic glass content in the 0.02 to 2 mm fraction - 5 to 20 percent
Acid-oxalate extractable Al plus 1/2 Fe 0.4 to 1.0 percent
Moist bulk density 1.15 to 1.35 g/cc
Ap or A horizons
Value - 4 or 5 dry, 2 or 3 moist
Chroma - 2 or 3, dry or moist
Clay content - 3 to 10 percent
Reaction - slightly acid or neutral
AB horizon
Chroma - 3 or 4, dry or moist
Texture - ashy very fine sandy loam, ashy fine sandy loam, or ashy silt loam
Clay content - 3 to 10 percent
Reaction - slightly acid or neutral
Bw horizon
Value - 6 or 7 dry, 4 or 5 moist
Chroma - 3 or 4, dry or moist
Clay content - 3 to 10 percent
Reaction - slightly acid or neutral
2E horizon
Hue -10YR or 2.5Y
Value - 6 to 8 dry, 4 to 6 moist
Chroma - 3 or 4, dry or moist
Texture - fine sandy loam, sandy loam, or loam
Clay content - 3 to 8 percent
Gravel content - 0 to 5 percent
Reaction - slightly acid or neutral
2E/Bt horizon
E part:
Hue - 10YR or 2.5Y
Value - 6 or 7 dry; 4 or 5 moist
Chroma - 1 to 3 dry, 2 to 4 moist
Texture - fine sandy loam, sandy loam, or loam
Clay content - 5 to 10 percent
Bt part:
Hue - 10YR or 2.5Y
Value - 3 or 4 dry
Texture - loam
Clay content - 18 to25 percent
Reaction - slightly acid or neutral
Gravel content - 0 to 5 percent
A 2Bt/E horizon is present in some pedons
2Btx horizon
Hue - 10YR or 2.5Y
Value - 6 or 7 dry; 4 or 5 moist
Chroma - 3 or 4, dry or moist
Texture - loam, silty clay loam, or clay loam
Clay content - 18 to 35 percent
Gravel content - 0 to 5 percent
Reaction - moderately acid to neutral
3C horizons
Hue - 10YR or 2.5Y
Value - 6 or 7 dry; 4 or 5 moist
Chroma - 3 or 4, dry or moist
Texture - stratified and include sand, loamy fine sand, fine sandy loam, very fine sandy loam, silt loam, sandy clay loam, or silty clay loam
Clay content - 3 to 35 percent
Reaction - moderately acid to neutral
COMPETING SERIES: These are the
Fugawee,
Henneway,
Neva, and
Tahand series. Fugawee soils are 20 to 40 inches to a paralithic contact. Henneway soils are 40 to 60 inches to a lithic contact. Neva soils lack fragic properties and redox concentrations or depletions, are dry for 45 to 75 consecutive days, and are considered well drained. Tahand soils are 40 to 60 inches to a paralithic contact. A Similar soil with mixed mineralogy is the
Witcher series. Witcher soils are 40 to 60 inches to a paralithic contact and are dry for 75 to 90 consecutive days.
GEOGRAPHIC SETTING: Fan Lake soils are on terraces at elevations of 2,000 to 2,400 feet. Slopes range from 0 to 25 percent, but predominant are 0 to 8 percent. These soils formed in glaciofluvial deposits or Latah formation with a thin mantle of volcanic ash and loess. Fan Lake soils are in a continental climate having warm, dry summers and cool, moist winters. The mean annual temperature is 42 to 45 degrees F. The mean annual precipitation is 20 to 30 inches. The frost-free season is 90 to 120 days.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the
Bridgeson,
Eloika, and
Wolfeson soils. Bridgeson soils are fine-loamy and are in drainageways. Eloika soils are ashy over loamy and are on glacial outwash terraces. Wolfeson soils are coarse-loamy and are on relict glacial lake terraces.
DRAINAGE AND SATURATED HYDRAULIC CONDUCTIVITY: Moderately well drained; moderately high saturated hydraulic conductivity. A perched water table is at its uppermost limit from January through April.
USE AND VEGETATION: These soils are used primarily for the production of alfalfa, small grains, grasses, or seed crops. Some areas are used for livestock grazing, timber production, and wildlife habitat. The potential natural vegetation is grand fir, Douglas-fir, lodgepole pine, ponderosa pine, and western larch with an understory of oceanspray, common snowberry, mallow ninebark, oregon grape, longtube twinflower, meadow rue, and pinegrass.
DISTRIBUTION AND EXTENT: Northeastern Washington. MLRA 44A. Series is not extensive.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Bozeman, Montana
SERIES ESTABLISHED: Spokane County, Washington, 2012. Series is named for nearby Fan Lake.
REMARKS: Diagnostic horizons and features recognized in this pedon are:
Ochric epipedon the zone from 0 to 4 inches (A horizon)
Cambic horizon the zone from 4 to 24 inches (AB, Bw, and 2E horizons)
Albic horizon the zone from 16 to 24 inches (2E horizon)
Andic feature - the zone from 0 to 8 inches (A and AB horizons)
Vitrandic feature the zone from 8 to 16 inches (Bw horizon)
Fragic properties the zone from 36 to 51 inches (2Btx horizon)
Argillic horizon the zone from 24 to 51 inches (2E/Bt and 2Btx horizons)
Particle-size control section the zone from 24 to 44 inches (2E/Bt and part of the 2Btx horizon)
ADDITIONAL DATA: Laboratory data available for Soil Survey Sample Numbers: S02WA-063-005 and S02WA-063-006, Spokane County, Washington. NSSL Pedon Numbers: 03N0293 and 03N0294 respectively.
National Cooperative Soil Survey
U.S.A.