2016-05-19_PERMIT FILE - C1982056 ‎(7)‎

• Permit No: C1982056
• IBM Index Class Name: Permit File
• Doc Date: 5/19/2016
• Section_Exhibit Name: Exhibit 16c 18 Right Shaft and 9 East Borehole Soil Information
• Media Type: D
• Archive: No

Fish Creek Soil Investigation

APPENDIX3
CLAYBURN SERIES
The Clayburn series consists of very deep, well drained soils that formed in glacial drift,
colluvium, or alluvium derived mainly from shale, sandstone, and andesite, with some basalt.
Clayburn soils are on plateaus, hills, and mountain slopes. Slopes range from 2 to 65 percent.
Mean annual precipitation is about 30 inches and the mean annual temperature is about 40
degrees F.
TAXONOMIC CLASS: Fine-loamy, mixed, superactive Pachic Argicryolls
TYPICAL PEDON: Clayburu loam in rangeland. (Colors are for dry soil unless otherwise
noted.)
Al--0 to 2 inches; very dazk grayish brown (lOYR 3/2) sandy clay loam, very dark brown (lOYR
2/2) moist; weak fine granulaz structure; soft, very friable, nonsticky and nonplastic; many fine
and few medium roots; slightly acid (pH 6.2); abrupt wavy boundary. (1 to 4 inches thick)
A2--2 to 12 inches; very dazk grayish brown (1 OYR 3/2) loam, very dazk brown (1 OYR 2/2)
moist; weak medium granulaz structure; slightly hazd, friable, nonsticky and nonplastic; many
fine and few medium roots; many fine pores; slightly acid (pH 6.4); cleaz wavy boundary. (6 to
12 inches thick)
A3--12 to 18 inches; dazk grayish brown (1 OYR 4/2) loam, very dazk brown (lOYR 2/2) moist;
weak fine subangulaz blocky structure parting to moderate medium granulaz; slightly hazd,
friable, slightly sticky and slightly plastic; many fine and medium roots; many fine pores; slightly
acid (pH 6.4); abrupt irregular boundary. (3 to 12 inches thick)
BA--18 to 24 inches; brown (1 OYR 4/3) loam, dazk brown (lOYR 3/3) moist; weak medium
subangulaz blocky structure parting to fine subangulaz blocky; hazd, friable, sticky and plastic;
many fine and few medium roots; common fine pores; slightly acid (pH 6.3); cleaz wavy
boundary. (3 to 6 inches thick)
•
Bt1--24 to 36 inches; brown (1 OYR 5/3) sandy clay loam, dazk brown (1 OYR 3/3) moist; weak
coazse subangulaz blocky structure parting to moderate fine blocky; hard, firm, very sticky and
very plastic; many fine roots; few fine pores; moderately thick continuous clay films; slightly
acid (pH 6.2); clear wavy boundary.
Bt2--36 to 41 inches; brown (1 OYR 5/3) sandy clay loam, dark brown (1 OYR 3/3) moist; weak
coazse subangulaz blocky structure parting to moderate fine blocky; hazd, firm, sticky and plastic;
many fine roots; few fine pores; thin, patchy clay films; slightly acid (pH 6.2); clear wary
boundary. (combined thickness of the Bt horizons is 15 to 35 inches)
Habitat Management, Inc. A3-5 01/06/04