PERMFILE50729

• Permit No: C1981028
• IBM Index Class Name: Permit File
• Doc Date: 12/11/2001
• Section_Exhibit Name: ASH DISPOSAL PLANS
• Media Type: D
• Archive: No

B) Dust Suppression - Ash Disposal Operations.
There would be no additional water requirements for the
disposal of ash. Dust suppression ds at the mine for
mining purposes is approximatel .86 ac t/year.
C) Office, shop, drilling and other needs
Potable water and other needs were supplied from deep well No.
24650-F. Approximately 1.49 ac-ft of water was used to supply
shower and sanitary facilities. From meter readings, the
total amount of well water used in 1985 is 5.25 ac-ft.
Therefore, 3.76 ec-ft of water was used for other purposes
such as equipment washdown, drilling water and other shop/mine
related uses.
D> Evaporation
In 1985, the consumptive use of surface runoff, subsurface
water seeps and trapped pit water through evaporation
primarily involved open sumps, sediment pond No. 2., the
dugout area, and A/B Pit.
Free water surface erect, the time duration that the structure
existed, and the net evaporation for each structure is
summarized in the table presented below.
Hydroloaic Balance
The following table summarizes the estimated annual net evaporation
and water use from structures, at the Keenesburg Mine.
Average free Duration of Net •
Water surface structure Evaporation
Structure Area (Acres) (months) (acre-feet)

Dugout .925 12 2.86
Pitsumps .223 12 .689
Sed. Pond #2 .79 12 2.44
Active pit 0.00 12 0.00
Evaporation Pond (lOOx consumptive use
- meter reading ) 0.00
Total estimated Consumption by evaporntion .......5.99
Dust Suppression: A) Water obtained from wells
24650-F end 24651-F........... .22
B) Water obtained from pit,
sumps, dugout etc ............. 1.64
Total estimated Consumption by
Dust Suppression, Ash Disposal Operations
end Evaporation ........................7.85 acre-feet
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