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GENERAL32057
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GENERAL32057
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Last modified
8/24/2016 7:54:50 PM
Creation date
11/23/2007 7:10:47 AM
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DRMS Permit Index
Permit No
C1981028
IBM Index Class Name
General Documents
Doc Date
12/1/1986
Doc Name
USE BY SPECIAL REVIEW APPLICATION DOCUMENT
Permit Index Doc Type
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D
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B) Dust Suppression - Ash Disposal Operations. <br />• There would be no additional water requirements for the <br />disposal of ash. Dust suppression needs at the mine for <br />mining purposes is approximately 1.86 ac-ft/year. <br />C) Office, shop, drilling end other needs <br />Potable water and other needs were supplied from deep well Na. <br />24650-F. Approximately 1.49 ac-ft of water was used to supply <br />shower and sanitary facilities. From meter readings, the <br />total amount of well water used in 1985 is 5.25 ac-ft. <br />Therefore, 3.76 ac-ft of water was used for other purposes <br />such as equipment washdown, drilling water and other shop/mine <br />related uses. <br />D) Evaporation <br />In 1985, the consumptive use of surface runoff, subsurface <br />water seeps and trapped pit water through evaporation <br />primarily involved open sumps, sediment pond No. 2., the <br />dugout area, and A/B Pit. <br />Free water surface area, the time duration that the structure <br />existed, and the net evaporation for each structure is <br />summarized in the table presented below. <br />• u••]•-pinric Ba lanr° <br />The following table summarizes the estimated annual net evaporation <br />and water use from structures, at the Keenesburg Mine. <br />Average free Duration of Net « <br />Water surface structure Evaporation <br />Structure Area (Acres) (months) (acre-feet) <br /> <br />Dugout .925 12 2.86 <br />Pitsumps .223 12 .689 <br />Sed. Pond #2 .79 12 2.44 <br />Active pit 0.00 12 0.00 <br />Evaporation Pond (100X consumptive use <br />- meter reading) 0.00 <br />Total estimated Consumption by evaporation .......5.99 <br />Dust Suppression: A) Water obtained from wells <br />24650-F and 24651-E........... .22 <br />B) Water obtained from pit, <br />sumps, dugout etc ............. 1.64 <br />Total estimated Consumption by <br />Dust Suppression, Ash Disposal Operations <br />and Evaporation ........................7.85 acre-feet <br />-3- <br />
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