2011-02-17_PERMIT FILE - M2010080 ‎(3)‎

• Permit No: M2010080
• IBM Index Class Name: PERMIT FILE
• Doc Date: 2/17/2011
• Doc Name: Adequacy Review #1
• From: Riverside Aggregates
• To: DRMS
• Email Name: JLE
• Media Type: D
• Archive: No

February 16, 2011
Jared Ebert
Division of Reclamation, Mining, and Safety
Department of Natural Resources
1313 Sherman St. Room 215
Denver, CO 80203

RE: Friederichs Pit; DRMS File No. M-2010-080, 110c Application Adequacy
?Review #1.
Mr. Ebert,
In response to your February 15, 2011 request for additional information regarding
inadequacies in specific exhibit requirements; please see the following reply for your review.
6.3.2 EXHIBIT B - Site Description
Item 1) Please provide a description of the vegetation and soil characteristics in the area of
the proposed operation.
Response: Please see the attached NRCS report identifying the vegetation and soil
characteristics in the area of operation.
6.3.3 EXHIBIT C -Mining-Plan
Item 2) Please indicate what species of grass will be planted on the topsoil stockpile to
stabilize it from wind and water erosion. Please provide a list of species and the approximate
pounds per acre of seed to be planted on the stockpile.
Response: The topsoil pile will be planted with a grass mix including side oats grama 1.1 lbs
per acre, western wheat grass 2.0 lbs per acre, blue grama 0Jlbs per acre, little blue stem 0.7
lbs per acre, and Indian rice grass at 0.4 Ibs per acre. Please note that this information has
been added to the Mining Plan - revised 2/15/2011.
Item 3) Please specify where mining will commence within the permit area and what
direction(s) mining will proceed.
Response: Mining will begin at the south, southeast boundary of the mining area. Mining
will proceed in the directions Northeast, North, and Northwest. Please note that this
information has been added to the Mining Plan - revised 2/15/2011.
Item 4) While excavating, will a high wall be created
Response: A high wall will be created approximately 10'-0" high at an approximate 1:1
slope, and approximately 850'-0" in length along the North boundary at any given time
during the mining operation. Please note that this information has been added to the Mining
Plan - revised 2/15/2011.
Item 5) Please describe how storm water will be managed at the site. Will any impoundments
or diversion structures be created?
Response: A storm water rock filter will be created and placed along the southern boundary
at the low point of the mining area. The berm will be constructed using 1 %z" screened and
2/16/2011 1 DBMS File No. M-2010-080