PERMFILE61423

• Permit No: C1982056
• IBM Index Class Name: Permit File
• Doc Date: 9/14/2005
• Section_Exhibit Name: Exhibit 16e 6 Main North Intake Shaft Soils Investigation
• Media Type: D
• Archive: No

Fish Creek Soil Investigation
APPENDIX 3
SPLITRO SERIES
The Splitro series consists of shallow, well drained soils that formed in alluvium, residuum, and
eolian deposits derived from sandstone. Splitro soils are on hillslopes, mountain slopes,
structural benches, and ridges. Slopes are 0 to 65 percent. The average annual temperature is 36
to 40 degrees F. The average annual precipitation is 18 to 25 inches.
TAXONOMIC CLASS: Loamy, mixed, superactive Lithic Haplocryolls
TYPICAL PEDON: Splitro sandy loam, on a west facing 7 percent slope in grassland. (Colors
aze for dry soil unless otherwise stated).
A--O to 8 inches; brown (7.SYR 5/3) sandy loam, dark brown (7.SYR 3/3) moist; moderate fine
granular structure; soft, very friable, nonsticky and nonplastic; many fine and very fine roots;
many fine and very fine pores; scattered sandstone fragments on the surface; neutral (pH 6.8);
clear smooth boundary. (6 to 15 inches thick)
Bw-8 to 16 inches; brown (7.SYR 5/4) fine sandy loam, brown (7.SYR 4/4) moist; moderate
coarse subangular blocky structure; slightly hard, very friable, nonsticky and nonplastic 5 percent
/'~ sandstone gravel; neutral (pH 6.8); abrupt smooth boundary. (4 to ]0 inches thick)
~t,._..
R--16 inches; hard quattzitic sandstone.
TYPE LOCATION: Johnson County, Wyoming; NEl/4, NEl/4, Sec. 30, T45N, R85W.
Tabletop Quadrangle. 43 degrees 50 minutes 38 seconds north latitude and 107 degrees 6
minutes 34 seconds west longitude.
RANGE IN CHARACTERISTICS: The mollic epipedon ranges from 7 to 15 inches thick, the
solum ranges from l0 to 20 inches thick, and depth to bedrock ranges from 10 to 20 inches. The
particle size control section is sandy loam or fine sandy loam. Rock fragments range from 0 to
35 percent. The average annual soil temperature ranges from 38 degrees to 43 degrees F. and
mean summer soil temperature from 45 degrees to 59 degrees F.
The A horizon has hue of ] OYR or 7.SYR, value of 3 through 5 dry, 2 or 3 moist, and chroma of
2 or 3. It is slightly acid to slightly alkaline.
The Bw horizon, has hue of ] OYR through SYR, value of 4 through 6 dry, 3 through 5 moist, and
chroma of 2 through 5. This horizon is slightly acid to slightly alkaline.
COMPETING SERIES: These are the Dickle, Hanaeita, Hazton, Heiss i Jenkinson, Lotex,
Pam, Skisams, S In iten• Taylow' Trwnn, Tu a and Udelooe series. Dickle and Paddy soils
are 25 to 35 percent clay throughout. Jenkinson and Trump soils have calcium carbonate
accumulations in some part of the profile. Hanagita soils have silt loam textures. Hazton soils
{~ have a high percentage of medium and coarse angulaz granitic sand and have C horizons that aze
very hard when dry. Heisspitz and Skisams soils have more than 18 percent clay in the particle
Habitat Management, Inc. A3-13 01/06/04