PERMFILE67353

• Permit No: C1981022
• IBM Index Class Name: Permit File
• Doc Date: 12/11/2001
• Section_Exhibit Name: 2.06 Requirements for Permits for Special Categories of Mining
• Media Type: D
• Archive: No

Smicvt - 2.06.8
Most of the surficial deposiu in the North Fork Valley are either alluvial fans or colluvial wedge
deposiu. A significant portion of the valley floor in the vicinity of the OMI Mme Permit Area is
occupied by old and new State 1Lghway 133; the Union Pacific Railroad mainline track, sidings, and
railroad right-of-way, the actual North Fork channel; and the Town of Somerset. Given the physical
limits of the valley and the steep valley sideslopes along with these existing uses, in the Mme Pemut
and adjacent areas there are no areaz adjacent to the North Fork channel that are currently being
cultivated, nor u there any evidence of prior cultivation or flood imgation. The following sunt[rrarize
site-specific observations from the reconnaissance level AVF investigations for the portion of the
North Fork in and adjacent to the Mme Permit Area:
T13S, R90W, Section 9, Sth, Noah of River. The area d'uturbed by construction of the
Sanbom Creek Mme surface facilities includes colluvial wedge and debris flow deposits and
encompasses less than five acres. This area haz a rninirtg/residential land rue history. The
Union Pacific Railroad rtrairiline and State Highway 133 bisect the area. There is no current
or evidence of historic agricultural activity This area generally does not meet the material,
water availability or size criteria for designation az an AVF.
There u a stream terrace just to the south of the Sanbom Creek Mme surface facilities and
new State Highway 133 where an infiltration gallery and water supply system haz been
established in the North Fork alluvium to supply domestic water for the Town of Somerset
and the mine. The water supply system includes the inlet piping, a pump station, systems for
basic water treatment and sampling, and system controk, with all pumping and treatment
systems enclosed in apre-fabricated metal building. Surficial deposiu in this area are
predominately floodplain alluvium and encompass less than ten acres. While alluvial
materials exist and there u sufficient water available for sub-imgation or flood irrigation, the
area u too small and irregular in iu configuration to support economic agricultural activity
• and there u no current or evidence of historic agricultural use.
• T13S, R90W, Section 9, E ~ S 'k SW '/4, W 'k S 'k SE '/., South of River. The reclain>ed
Bear No.l and No.2 Mmes and West Elk Coal Company's pemut occupy this area. This area
lies on floodplain alluvium and encorrrpazses less than ten acres. This area haz been used for
mining since 1935. Prior to 1935 it was undeveloped land. The Clv1I.RD previously made a
negative AVF detemwration on this area.
• T13S, R90W, Section 8, SE '/~ SE '/~, South of River. The Bear No.3 Mme occupies this area.
This area hes on floodpLun alluvium and encompasses less than ten acres. The CIvII.RD
previously made a negative AVF determination on this area.
• T135, R91W, Settions 13 and 14 and, T13S, R90W, Section 18, South of River. Lands in
these areaz have been previously designated by the CM[.RD az AVF's. The closest
designated AVF area to the OMI Mme Permit Area u about two miles downstream on the
west side of Section 18.
• T13S, R90W, Section 10, SW'/~: Thu is an area of unsoned and unconsolidated rock, soil,
and debris deposited where the stream gradient decreases. Thu area has been disturbed by
historic highway construction and u the site of West Elk Coal Cnmpany's surface faciliues.
Thu area does not meet the criteria for an AVF due to the historic disturbance.
• T13S, R90W, Section 12, Along River. The alluvium along the river begins to widen on the
eaztem edge of Section 12. There u no current or evidence of historc agricultural activiry in
. this area. This area would not be affected bythe OMI operations, which are downstream
OMI's existing and anticipated future operations, including the existing Sanbom Creek Mme and the
proposed Elk Creek Mme, will not materially effect the quantity or quality of the water supplying the
identified downstream AVF areas. ranges in the quantity of water utilized by the AVF's depend on
PR04 2.0(x4 Revised August 2000