2017-02-03_PERMIT FILE - C1980004 ‎(2)‎

• Permit No: C1980004
• IBM Index Class Name: Permit File
• Doc Date: 2/3/2017
• Section_Exhibit Name: Volume I Sections 2.03 & 2.04
• Media Type: D
• Archive: No

2.04.9 Soils Resource Information
HAVRE SERIES
The Havre series consists of deep, moderately fine textured, well -drained soils.
These soils formed in alluvium derived from sandstone and shale. Elevation range is
5,250 to 5,500 feet. Annual precipitation is about 10 inches. The mean annual soil
temperature ranges from 400 to 470 F, and the frost -free period is 105 to 135 days. The
native vegetation is a greasewood - shrubland community.
The Havre series is a member of the fine -loamy, mixed (calcareous), frigid family
of Ustic Torrifluvents. A representative profile of Havre loam, sample point MC 8, about
250 feet east and 2,425 feet south of the northwest corner of Section 21, T 7 S. R 102
W. at an elevation of 5,445 feet is:
A11 0 to 1 1/2 inches; light brownish gray (2.5 YR 6/2) sandy clay, dark brown (10
YR 4/3) moist; weak very thin platy parting to very fine granular structure; hard,
very friable, slightly sticky and slightly plastic; strongly calcareous; pH 7.7; clear
smooth boundary.
Al2 1 1/2 to 8 inches; brown (10 YR 5/3) loam, dark brown (10 YR 4/3) moist;
moderate coarse angular blocky and prismatic structure; slightly hard, very
friable, slightly sticky and slightly plastic; strongly calcareous; pH 8.5; gradual
smooth boundary.
Cl 8 to 17 inches; brown (10 YR 5/3) silty clay loam, dark brown (10 YR 4/3) moist;
moderate medium subangular blocky structure; slightly hard, firm, sticky and
plastic; strongly calcareous; pH 8.9; diffuse boundary.
C2 17 to 30 inches; brown (10 YR 5/3) sandy clay loam, dark brown (10 YR 4/3)
moist; massive structure; soft, very friable, slightly sticky and slightly plastic;
calcareous; pH 8.9; arbitrary boundary.
C3 30 to 55 inches; brown (10 YR 5/3) sandy clay loam, dark brown (10 YR 4/3)
moist; massive structure; soft, very friable, slightly sticky and slightly plastic;
calcareous; pH 8.9; gradual smooth boundary.
C4ca 55 to 60+ inches; yellowish brown (10 YR 5/4) very fine sandy clay loam, dark
brown (10 YR 4/3) moist; massive structure; soft, very friable, slightly sticky and
plastic; calcareous; many lime accumulations occurring as nodules and thin
mycelia; some fine coal fragments; pH 8.5.
The soil has a hue of 10 YR or 2.5 Y, value of 5 or 6 dry, 4 or 5 moist, and a
chroma of 2 or 3. The control section is typically stratified loam and fine sandy loam;
clay ranges 20 to 30 percent. Some pedons have 1/2 to 3 inch lenses of coarser or finer
PR -02 2.04-36 10/12