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rock from Mine No. 3 had a high ni:ka_1 value. The high iron levels an
<br /> the high nickel value should not pose a significant problem because oothi
<br /> iron and nickel are relatively insoluble at the pH values
<br /> characteristically found in the materials and water associated with t: ._.
<br /> materials. In addition, the sodic nature of the materials is not a
<br /> significant problem. Hign sodium levels would not affect the plant
<br /> growth characteristics of the materials since these sodium quantities are
<br /> not toxic to plants, but rather would destroy the structure of sails,
<br /> particularly in soils of predominantly clay texture. The result of this
<br /> breakdown is a decrease in the infiltration rate, thus a decrease in -
<br /> water available ,`or plant growth. However, the coal processing waste (a
<br /> combination of coal and roof rock) , which may be subject to revegetation
<br /> activities is coarse textured, thus there should be no problems.
<br /> The proposed operation is in compliance with the requirements of this
<br /> section.
<br /> V. Surface Water Hydrology - Rules 2.04.5, 2.04. 7, 2.05. 3(1) ,
<br /> 2.05.E 3 and 4.05
<br /> Information on srlrFaC,3 -liter hydrolojy revi a,4e2d for :)y t,r�
<br /> Division can be found in Chapter II, Volume 2; Chapter III-C, VolunI T
<br /> and Chapter III-E, Volume 5. '
<br /> The Coal Basin mines are located on the divide that separates the North
<br /> Fork of the Gunnison watershed from the Crystal River watershed.
<br /> Drainage from the east side of Huntsman Ridge flows east in Coal Creek to
<br /> the Crystal River, teen north wnere the Crystal River joins the Roaring ��
<br /> Fork River near Carbondale, approximately 17 ,ii lras r)rth of C,)al 3asi n.
<br /> The Roaring Fork then flows northwest to the confluence with the Colorado
<br /> River at Glenwood Springs.
<br /> The drainage on the west sidt- r)F 4ants.nan Ridge consists of a number of
<br /> small tributaries flowing to the .vest and south which, in turn, flow into
<br /> the Clear Fork and East Muddy Creek. East Muddy Creek flows west into
<br /> the confluence with the North Fork, which flows west to the confluence Ut
<br /> with the Gunnison Rider. The Gunnison river joins the Colorado River in
<br /> Grand Junction, approximately 70 miles west of the Coal Basin facilities.
<br /> F
<br /> he primary stream in Coal Basin is Coal Creek, a perennial stream, which
<br /> s trioutary to -he Crystal River. This stream grains an area of
<br /> proximately 25.b Sr1uar? illl �'�, 1' ;tr'�ans `.ri` uLarV to Cal Clr�jKhose upper drainayes originate in the mine lease area are, inrection around the basin starting from the lower end, Bear Cra_e�, SouthrK Jutch �reeK, JAortn ForK Dutch CreeK, 0i1',vel1 Creak, i.J itrcupine Creek. Each of these streams is ephemeral on the lease �ract
<br /> and becomes perennial down gradient toward the plant site. Other streams
<br /> in Coal 3asin 'outside of th,' Coal Basin 'line affi-cted area ar? Syir'ing
<br /> _reeK ana 3roderiCx Creek. J
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