2019-05-24_PERMIT FILE - M2019027

• Permit No: M2019027
• IBM Index Class Name: PERMIT FILE
• Doc Date: 5/24/2019
• Doc Name: Application
• From: Colorado Sand Company
• To: DRMS
• Email Name: PSH
• Email Name: MAC
• Media Type: D
• Archive: No

Table of Contents
EXHIBIT A: Legal Description and Location...........................................................................................A-1
Exhibit A-1: General Site Location..............................................................................................A-4
Exhibit A-2: Keenesburg Project Location...................................................................................A-5
Exhibit A-3: Permit Area and Proximal Features.........................................................................A-6
EXHIBIT B: Site Description....................................................................................................................B-1
GeneralSite Description...............................................................................................................B-1
Regionaland Localized Geology..................................................................................................B-2
Climate..........................................................................................................................................B-4
Vegetation.....................................................................................................................................B-5
TableB-1 ......................................................................................................................................B-6
Soils...............................................................................................................................................B-7
TableB-2 ......................................................................................................................................B-7
TableB-3 ....................................................................................................................................B-10
Surface Water Resources............................................................................................................B-15
Groundwater Resources..............................................................................................................B-17
TableB-4 ....................................................................................................................................B-19
Attachment B-1: Environmental Resources Report....................................................................B-23
EXHIBIT C: Mining Plan..........................................................................................................................C-1
(a) Estimated Date Mining Will Commence and End.................................................................C-9
(b) Estimated Depth to Which Growth Medium Will be Salvaged...........................................C-10
(c) Thickness of Overburden or Waste Rock.............................................................................C-11
(d) Thickness of Deposit to be Mined........................................................................................C-12
(e)Major Components of Mining Operations ............................................................................C-12
(f) Significant Disturbance Features...........................................................................................C-20
(g)Existing/Proposed Roads and Associated Drainage Features...............................................C-21
(h)Water Usage and Source.......................................................................................................C-22
(i) Groundwater- Affect on Quantity and Quality......................................................................C-24
0) Compliance with Applicable Water Laws and Regulations...................................................C-25
(k)Refuse and Acid or Toxic Producing Materials....................................................................C-25
(1)Protection of Hydrologic Balance..........................................................................................C-25
(m)Mineral Processing...............................................................................................................C-26
(n)Primary and Secondary Commodities...................................................................................C-28
(o) Incidental Products................................................................................................................C-28
(p)Use of Explosives..................................................................................................................C-29
Keenesburg Project_Limited Impact 110 Application_May 24, 2019