PERMFILE66751

• Permit No: M1997054
• IBM Index Class Name: Permit File
• Section_Exhibit Name: EXHIBIT I - SOILS INFORMATION
• Media Type: D
• Archive: No

Parkdale Project • 2 • Reclamation Permit
fine sandy loam textures, strong effervescence, and moderate alkalinity to a depth of 60
inches. The coarse fragment content less than 5 percent throughout the profile. The
effective rooting depth is 60 inches or more. This soil is non-saline and non-sodic. The
hazard of water erosion is slight to high.
1.4 Nunn clay loam, 0 to 2 percent slopes
This map unit consists of well drained soils forming on fans and fan terraces in loess and
alluvium and is not scheduled for disturbance. The Nunn soil, making up about 90
percent of the unit, is typically characterized by clay loam textures to a depth of 60
inches. This soil is neutral to moderately alkaline, non- to strongly effervescent, and has
a coarse fragment content less than 5 percent throughout the profile. The effective
rooting depth is 60 inches or more. This soil is non-saline and non-sodic. The hazard of
water erosion is slight.
1.5 Riverwash
The Riverwash unit occurs along the borders of Tallahassee Creek in the northern half of
the project area and would be disturbed by haul road construction to a limited degree.
Typically, the majority of this map unit is barren and consists of alluvial sand, gravel,
and cobbles which are subject to scouring and alluvial deposition. Deeper soils occur as
apart of this unit in small defined areas. The soils of this unit are non-saline and non-
sodic.
1.6 Roygorge very gravelly sandy clay loam, 25 to 50 percent slopes
Overlying mountainsides, this unit consists of shallow, well drained soils. It is scheduled
for disturbance by the granite mining operation. The Roygorge soil is forming in
residuum from gneiss and granite and covers approximately 85 percent of the unit. This
soil is typically characterized by very gravelly sandy clay loams over an indurated
horizon at 11 to 12 inches. It is neutral, non-effervescent, non-saline, and non-sodic.
Coarse fragment content ranees from 50 to 55 percent throughout the profile. The
effective rooting depth is 8 to 20 inches.
1.7 Sedillo cobbly sandy loam, 4 to 25 percent slopes
This map unit consists of well drained soils forming on fan terraces in calcareous,
gravelly and cobbly alluvium along the Arkansas River. The unit may be disturbed by
rail spur construction. The Sedillo soil, making up about 85 percent of the unit, is
typically characterized by extremely cobbly and stony loams and sandy clay loams over
loams to a depth of 60 inches. This soil is neutral to moderately alkaline, non- to
strongly effervescent, and has a coarse fragment content ranging from 5 to 75 percent
throughout the profile, decreasing with depth. The effective rooting depth is 60 inches or
more This soil is non-saline and non-sodic. The hazard of water erosion is slight to
very high.