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GENERAL48922
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Last modified
8/24/2016 8:26:35 PM
Creation date
11/23/2007 4:42:36 PM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1980001
IBM Index Class Name
General Documents
Doc Date
10/29/1981
Doc Name
Proposed Decision and Findings of Compliance
Permit Index Doc Type
FINDINGS
Media Type
D
Archive
No
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-20- <br />St ream Bui f-.•r ;:~>nc; (~;.r)'~. 1.5 <br />No land within 100 feet of a perennial stream can be disturbed unless the Division <br />specifically authorizes surface coal minifrg activities closer.to the stream upon <br />finding that the original stream channel will 6e restored, that the water eriZ1 not <br />be adversely affected, and that the reclamation plan will restore the appropriate <br />riparian vegetation. Many areas at the Edna mine both disturbed and to be disturbed <br />lie within this I00 foot "stream buffer zone". The breaks in the buffer zones occur <br />both dlong Oak Creek and along Trout Creek and can be seen on Exhibit 1.0-1 of the <br />permit application. A request for an exemption from the stream buffer zone re- <br />quirement was requested for !m r-A r,•rr, •I;s on ra o.~ 3.r".-~ n~ rh~• n,•~r,it nr•~7icnti on. <br />The Oak Creek stream ch.urncl ~.:~~~: r~]r,c.i t~•d lu; Clec r.iiirorni in 190:. ;''ho •~n.7u r?.is- <br />turbance to the Oak Creek stz'eam channel h~) the mining operation e:•as the installation <br />of a culvert. The reestablishment of the r?rainage in this case eras addressed. The <br />applicant is found to be in compliance with ^,.05.17(1)(a). <br />The effects to water quality have been addressed in the Ffydrologic Balance section <br />of this document. <br />The applicant has stated that the riparian habitat e~rhich has been disturbed and <br />will be disturbed along the streams will be reestablished. Due to the fact chat <br />the habitats prior to disturbance in the office and tingle area are unknown and that <br />the Denver and Rio Grande .4ailroa~d owns the right-of-.ray i~ctwecn these areas of dis- <br />turbance and Oak Creek, a specialized reclamation plan for ti~is area has been <br />developed. <br />VI. li l'DRGLOGIC Br17.AiiCE; faMi'''D [,',l'fER I~.OC.= 7.r1 ~;. 7, :.' .7s. ~( 1) 2.Ui.G (3J , <br />4.051 --~------------ <br />Pre-;lin ino En vizon nn~nt <br />The applicant has presented sufficient information describing the ground water regime <br />to comply with Sections 2.04.5 and 2.04.7 of the Colorado permanent regulatory pro- <br />gram. Sufficient information has been presented to assess the impacts which may <br />occur to the around water regime as a result of minir.,7. The applicant's ground water <br />investigation is contained in Section 2.5 of the 7iermit application. <br />Ground [~ia ter Protect.i cn <br />The applicant has adequately demonstrated that the proposed mining operations will <br />not intersect or physically disrupt any formations :=hich serve as aquifers. The <br />Trout Creek Sandstone is the first bedrock formation belocr the ground surface which <br />has the potential to serve as an aquifer. The Trout Creek Sandstone lies approxi- <br />mately I50-225 feet be]rnr th~~ cen2 seams to he mined, and will not bc_ physically dis- <br />turbed. <br />The alluvial formations along both Oak Creek and Trout Cree{: also serve as aquifers. <br />Neither formation will be within a disturbed area. Along Oak Creek, no mining will <br />take place; only the office complex and loadout facilities are located there. No <br />major impacts From these facilities to the alluvial ground water are anticipated. <br />The ground water monitoring of the alluvium along Oak Creek is discussed on page ~_ <br />of this document. Along Trout Creek, across from the permit area, the alluvial ground <br />water on the West side of the channel is currently being utilized for water supply <br />
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