LOCATION TEPPIPAASIWATIIPE       ID

Tentative Series
IRD BAG
11/2024

TEPPIPAASIWATIIPE SERIES

The Teppipaasiwatiipe series consists of very deep, somewhat excessively drained soils that formed in alluvium. These soils are on stream terraces. Slopes are 0 to 2 percent. Mean annual precipitation is about 300 mm, and the mean annual temperature is about 8 degrees C.

TAXONOMIC CLASS: Sandy, mixed, mesic Torriorthentic Haploxerolls

TYPICAL PEDON: Teppipaasiwatiipe gravelly sandy loam in cropland. (Colors are for dry soil unless otherwise stated.)

Ap1--0 to 5 cm; brown (10YR 5/3) gravelly sandy loam, dark brown (10YR 3/3) moist; strong thick platy structure parting to strong very fine granular; soft, very friable, nonsticky and nonplastic; common very fine roots; many very fine irregular pores; 20 percent gravel; neutral (pH 7.1); abrupt smooth boundary.

Ap2--5 to 18 cm; brown (10YR 5/3) gravelly sandy loam, dark brown (10YR 3/3) moist; moderate medium subangular blocky structure parting to moderate very fine granular; soft, very friable, nonsticky and nonplastic; common very fine roots; many very fine irregular and common very fine and fine tubular pores; 20 percent gravel; neutral (pH 6.8); clear smooth boundary.

A1--18 to 33 cm; brown (10YR 5/3) gravelly sandy loam, dark brown (10YR 3/3) moist; weak medium and coarse subangular blocky structure; slightly hard, very friable, nonsticky and nonplastic; common very fine roots; common very fine irregular and tubular pores; 20 percent gravel; neutral (pH 6.8); clear wavy boundary.

A2--33 to 48 cm; brown (10YR 5/3) gravelly sandy loam, dark brown (10YR 3/3) moist; weak coarse subangular blocky structure; slightly hard, very friable, nonsticky and nonplastic; common very fine roots; many very fine irregular and common very fine tubular pores; 15 percent gravel; neutral (pH 6.8); clear wavy boundary.

C1--48 to 64 cm; brown (10YR 5/3) gravelly loamy sand, brown (10YR 4/3) moist; single grain; loose, nonsticky and nonplastic; common very fine roots; many very fine irregular and common very fine tubular pores; 20 percent gravel; neutral (pH 6.7); clear wavy boundary.

C2--64 to 94 cm; light yellowish brown (10YR 6/4) gravelly loamy sand, brown (10YR 4/3) moist; single grain; loose, nonsticky and nonplastic; common very fine roots; many very fine irregular and few very fine tubular pores; 20 percent gravel; neutral (pH 7.0); clear smooth boundary.

2C3--94 to 150 cm; pale brown (10YR 6/3) extremely gravelly fine sand; brown (10YR 4/3) moist; single grain; loose; common very fine roots; many very fine irregular pores; 70 percent gravel; slightly alkaline (pH 7.6).

TYPE LOCATION: Bingham County, Idaho; USGS topographic quadrangle Fort Hall; latitude 43.0670309 degrees north, longitude 112.4752914 degrees west, datum WGS84.

RANGE IN CHARACTERISTICS:
Mean annual soil temperature--9 to 10 degrees C
Thickness of mollic epipedon--25 to 48 cm
Depth to lithological discontinuity--70 to 120 cm

Particle-size control section (weighted averages)
Clay content--3 to 7 percent
Rock fragments--20 to 35 percent

Ap and A horizons
Hue--7.5YR or 10YR
Value--4 or 5 dry, 2 or 3 moist
Chroma--2 or 3 dry or moist
Rock fragments--15 to 30 percent
Reaction--pH 6.6 to 7.3
Thickness-35 to 50 cm

C horizons
Hue--10YR or 2.5Y
Value--5 to 7 dry; 4 or 5 moist
Chroma--3 or 4 dry or moist
Texture--loamy sand, loamy fine sand
Rock fragments--15 to 35 percent gravel
Reaction--pH 6.6 to 7.4
Thickness-35 to 70 cm

2C horizon
Hue--10YR or 2.5Y
Value--6 or 7 dry; 4 or 5 moist
Chroma--3 or 4 dry or moist
Texture--sand, fine sand
Rock fragments--60 to 80 percent gravel
Reaction--pH 7.2 to 7.8

COMPETING SERIES: There are no competing series.

GEOGRAPHIC SETTING:
Landform--stream terraces
Elevation-1,347 to 1,372 meters
Slope--0 to 2 percent
Parent material--alluvium
Mean annual precipitation--250 to 300 mm
Mean annual air temperature--7 to 8 degrees C
Frost-free period--100 to 120 days

GEOGRAPHICALLY ASSOCIATED SOILS: None listed.

DRAINAGE AND SATURATED HYDRAULIC CONDUCTIVITY: Somewhat excessively drained; 15 to 50 um/sec in the upper part and 150 to 700 um/sec in the lower part

USE AND VEGETATION: Teppipaasiwatiipe soils are primarily used for irrigated cropland. The potential native vegetation is Indian ricegrass, needle and thread, Sandberg bluegrass, and basin big sagebrush

DISTRIBUTION AND EXTENT: Teppipaasiwatiipe soils are of small extent in southeastern Idaho; MLRA 11

SOIL SURVEY REGIONAL OFFICE (SSRO) RESPONSIBLE: Bozeman, Montana

SERIES PROPOSED: Bingham County, Idaho, 2022. Teppipaasiwatiipe series is coined.

REMARKS: Diagnostic horizons and features in this pedon include:

Mollic epipedon--0 to 48 cm (Ap and A horizons)

Particle-size control section--25 to 100 cm (A and C horizons)

Teppipaasiwatiipe soils have a mesic temperature regime and an aridic moisture regime bordering on xeric.

---

National Cooperative Soil Survey
U.S.A.