2015-07-06_PERMIT FILE - M2015006

• Permit No: M2015006
• IBM Index Class Name: Permit File
• Doc Date: 7/6/2015
• Doc Name: Coment and Response - Adequacy Review No. 2
• From: Sprague Stone LLC
• To: DRMS
• Email Name: MAC
• Email Name: WHE
• Media Type: D
• Archive: No

Vegetation Restoration
Mulch Application:
Topsoil shall be removed and segregated from other spoil. Areas of topsoil replacement will be
approximately 4" to 6" in depth. Topsoil will be stored in a designated area near the upper south side of
the quarry, see the location labeled in Exhibit C.2 "Mining Plan and Land Ownership Map". The location
for the topsoil storage has been chosen for the natural ability to protect the topsoil from erosion, it will
also have a J -dam in place around the perimeter. If the topsoil does not get used within a year of its
placement, it will be seeded with the approved "High Plains/Foothills" grass mix. The push length for the
topsoil will vary from 1865 linear feet (from the north active open cut of the quarry) to 845 linear feet
(from the south active open cut of the quarry). Noxious weed -free mulch will be mixed in with the
topsoil prior to distribution. Several mulch types may be used: Hay and straw mulch, recycled paper
mulch, hammer -milled mulch (which is a ground -up, short fiber, wood mulch) or organic mulch. Each of
these mulches will dramatically improve the success of re -vegetation.
Fertilizers:
The goal of the fertilizer is not to change site potential but restore it by;
Restoring soil attributes lost during stripping, stockpiling, spreading, and cultivating.
Facilitating germination and establishment of native plants.
The specific types of fertilizers used will depend on the time of year they are applied and the amount of
moisture found in the soil. After soils inspection, a specific fertilizer can then be recommended.
Seed Mix:
High Plains/Foothills Grass seed mix is designed for where no irrigation is present. It will grow on annual
precipitation and will survive on a minimum of 10 inches of annual rainfall.
High Plains/Foothills Grass mix contains the following species:
15%
Western Wheatgrass
10%
Slender Wheatgrass
4%
Big Bluestem
14%
Side -Oats Grama
10%
Blue Grama
10%
Buffolograss
8%
Indian Ricegrass
5%
Switchgrass
10%
Little Bluestem
5%
Indian Grass
1%
Sand Dropseed
3%
Prairie Dropseed
5%
Green Needle Grass
This is a specific blend for the foothills areas in the Rocky Mountain regions. A broadcasting method of
planting will most likely be used. In the event the mining operator is unable to obtain the High
Plains/Foothills grass mix at the time of reclamation, a technical revision will be required for the
approval of a revised seed mix.
Final Reclamation
The reclamation to non-active mining areas will begin upon completion of the quarried area. Specific
mining techniques and practices used to strip, store, process and spread overburden on the reclamation
area are as follows: The estimated 20 percent overburden that was stripped from the active mining
R:\2000\2089.00 Sprague Quarry\D0CUMENTS\PERMITS\2015 Mining Permit\For Permit Package Submittal\Exhibits\Exhibit E - Reclamation
Plan.docx