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2014-05-06_PERMIT FILE - C1992080A
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2014-05-06_PERMIT FILE - C1992080A
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Last modified
8/24/2016 5:43:47 PM
Creation date
12/8/2015 9:01:17 AM
Metadata
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Template:
DRMS Permit Index
Permit No
C1992080A
IBM Index Class Name
Permit File
Doc Date
5/6/2014
Doc Name
Revised Permit Document
From
Oakridge Energy, Inc.
To
DRMS
Section_Exhibit Name
Abridged Permit Document (RN-4)
Email Name
MLT
Media Type
D
Archive
Yes
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impacts from the mining operations have not been observed nor are expected to occur. <br />Quality and quantity of the surface water is "as expected" in the original permit. <br />2.04.7(3) Alternative Water Supply Information <br />The adjudicated water rights and water wells around the permit area drawn from the <br />Colorado State Engineer's Master Listings are listed on Table 4-4. The locations of these <br />water rights and wells are shownon Map 4-3. None of the four springs shown on the <br />map and previously described is adjudicated. <br />The extent to which the mining operation was anticipated toaffect ground and surface <br />water sources is discussed below. Spring No. 1 flows in response to precipitation and, <br />therefore, is not a dependable water supply. Spring No. 2 is probably associated with the <br />Florida River Basin. However, the Animas River Basin, is the basin which encompasses <br />the permit area. Water quality analyses of Spring No. 3 and Spring No. 4 indicate the <br />water is not acceptable for beneficial use other than industrial use (See Table 4-7). <br />The marked strike and dip of the coal seams proposedto be extracted are such that the <br />nearest adjudicated wells are not hydraulically connected with the coal seams or any of <br />the overlying strata to be affected by mining (See Section 2.04.7(1)). <br />The surface water rights upstream of the confluence of Carbon JunctionCanyon with the <br />Animas River will not be affected by the project. Furthermore, the Animas River is not <br />"over" appropriated. Infiltration and subsequent groundwater recharge will decrease <br />during the period of mining and increase after reclamation in the pit area due to increased <br />porosity (See Section 2.05.6(3)). Surface runoff will increase in the short term due to <br />woody plant density reduction and consequently, shorter times of concentration of runoff <br />volumes but will be offset to some extent by slope reduction (the reduction of impervious <br />rock surface on the disturbed area as a whole) and particularly on the terraced sandstone <br />in the northwest portion of the pit (See Reclamation Plan). The NPDES Permit <br />requirements ensuredthe maintenance or improvement of local water quality during the <br />mine life, and sediment ponds protectedthe basin from excess erosion preceding bond <br />release. <br />Abridged Permit Document4-14Permit Renewal RN04 4/2014 <br />
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