2010-11-22_APPLICATION CORRESPONDENCE - C2010088 ‎(2)‎

• Permit No: C2010088
• IBM Index Class Name: Application Correspondence
• Doc Date: 11/22/2010
• Doc Name: Preliminary Adequacy Review
• From: Marcia Talvitie
• To: Michael Boulay
• Media Type: D
• Archive: No

STATE OF COLORADO
DIVISION OF RECLAMATION, MINING AND SAFETY
Department of Natural Resources
1313 Sherman 5t., Room 215
Denver, Colorado 80203
Phone: [phone]
FAX: [phone]
COLORADO
D I V I S I O N OF
RECLAMATION
MINING
SAFETY
Date: 22 November 2010 Bill Ritter, Jr.
Governor
To: Michael P. Boulay, Lead Specialist James B. Martin
Executive Director
From: Marcia L. Talvitie, P.E. Loretta E. PMeda
k! Director
RE: Fruita Loadout — Permit Application No. C -2010 -088
Preliminary Adequacy Review — Engineering 1 Geotechnical
As requested in your memo dated 4 October 2010, I have conducted a review of the application
for the Fruita Loadout submitted by J.E. Stover & Associates on behalf of CAM - Colorado, LLC.
My review focuses on the Engineering and Geotechnical aspects of the application, including
mine facilities, stockpile areas, roads, stability analyses, and the proposed bridge across Reed
Wash. These subjects are covered in Sections 2.05.2 and 2.053 within Volume I of the permit
application and are illustrated on various maps within Volume II.
Rule 2.04.6 GeoloQV Descriotion
1. The first sentence of Section 2.04.6 indicates that the discussion of geology is derived
from the 1955 Grand Junction Soil Survey. The Division has compared the text provided
with the application against the Geologic Map of Colorado published in 1979. We
suggest that the names of a number of the geologic units have been revised, and that
recommend that portions of the section be reworded as follows:
First ¶
• 1St sentence: "The following discussion of geology is derived from the 1955 Grand
Junction Soil Survey and from the 1979 Geologic Map of Colorado."
• 4th — 5 th sentences: "To the north and northeast, the Mancos shale is capped by the
Cretaceous Mount Garfield Formation and Sego Sandstone, forming the Book Cliffs.
The Book Cliffs stand out in bold relief above the valley, rising in elevation from 5,500
feet at their base to a crest of 6,500 to 7,000 feet.
Second ¶
• The Mount Garfield Fm. and Sego Sandstone contain buff to yellowish -brown sandstone
bedded with soft gray shale that contains one or more beds of bituminous coal and
underlying thick beds of sandstone that rest upon the marine Mancos shale.
Fourth ¶
• 1 St sentence: Overlying the Mount Garfield and Sego Sandstone are the Hunter Canyon,
Wasatch, Green River and Uinta Formations, which successively rise to the lava- capped
deposits on Grand Mesa.
Office of Office of
Mined Land Reclamation Denver • Grand Junction • Durango Active and Inactive Mines