PERMFILE139390

• Permit No: M1980131
• IBM Index Class Name: Permit File
• Section_Exhibit Name: EXHIBIT A LEGAL DESCRIPTION
• Media Type: D
• Archive: No

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The following information ispresented as recnired in Section 7:

L•. (ii) The unconsolidated fluvial tributary to the Ana hrmich of
the Yampa P,iver and the Yamp P,ivez constitute the only aquifer involved.
b. (iii) The applicant will use a closed circuit system for process
water. The pit trill be dewa red and this water will be used for process
water and then discharged intic a series of settling ponds in the early
stages. Any disci~arge zaater kill raeeC file conditions of the ivPD%S permit.
After the first year when the, pit area is enlarged, it is unli!;ely that
there will he any discharge. The co::~bii:atiou haul road and flood protection
berms around the perimeter of, the pit area =gill !~reveut surface runoff into
the adjacent Ana Branch of the Farina !river. Drainage from st-od;piles and
operating surfaces will be ch~Cnneled into the settlin>; ponds.
c. Estivate of project caaterrenuirements:
The publication "P.egional Ana~ysis, rival Environmental Sl-atement, i7orthwes*_
Colorado Coal" prepared by Ch U. S. Departa:ent of the intnriur provides the
following precipitation and evaporation information:
Annual precip tation -Cram, 14"
(Page II-31)~
Annual evaportiou -
(Table RII-1 page II-35 indicates evaporatioi:
at the i!ayde Station of 42". This figure is used
as being thenearest to Craig and the ^:ost similar
climate.) I
Evaporative Loss:
Gross evaporai~ion 42"
Less annual p~ecip. 14"
2v" per surface acre
124.5 surface acres x 28"(2-1/3f t.) 291.2A. Pt.
Process 4la ter:
This is essentially anon-consumptive use, but to allow a safety factor,
calculations will be made on a 15`/, consumptive use Factor. The afore-
mentioned 15'; consumptive usr•_lis involved in file processing an3 washing of
sand and gravel.