2013-10-02_PERMIT FILE - C1981019A ‎(3)‎

• Permit No: C1981019A
• IBM Index Class Name: Permit File
• Doc Date: 10/2/2013
• Section_Exhibit Name: Rule 2 Permits -ST
• Media Type: D
• Archive: Yes

RULE 2 PERMITS
• According to the suitable salvage depths of the encountered soils, it is apparent that a sufficient volume of
suitable soil exists in the proposed mining area to ensure subsequent successful reclamation, assuming all
recommended suitable soil is salvaged and best-management practices are employed during reclamation
activities. Salvage of soils on slopes greater than 40% may be impractical in this area; however, a
sufficient volume of suitable soil should still be available for successful reclamation. The actual proposed
disturbed area will be determined by the mine plan for the area. The weight-average calculation of
suitable soil recommended for salvage across the area and the resulting total cubic yards of salvageable
soil will be determined after the mine plan is developed for the area.
Map Unit Suitability Evaluation, Salvage Depths, and Soil Volumes -Lower Wilson North Haul Road
Area
The Lower Wilson North Haul Road soils study area is approximately 21 acres. Four deep soil pits
(LW17, LW18, LW19, and LW20) were dug by backhoe within the proposed north haul road study area.
Soils were described at all four sites, and two representative sites (LW17 for Yamo fine sandy loam and
LW20 for Battlement fine sandy loam) were sampled for laboratory analysis. The corridor crosses the
two deep soils, Battlement fine sandy loam (Map Unit 10) and Yamo fine sandy loam (Map Unit 216), as
well as a small portion of the Wilson Creek drainage channel (Map Unit WC). Both Battlement and
Yamo fine sandy loams have approximately 18 inches of suitable soil available for salvage. The Wilson
Creek drainage is a perennial stream and the drainage channel does not have available soil for salvage.
A sufficient volume of suitable soil exists along the proposed Lower Wilson North Haul Road corridor to
ensure subsequent successful reclamation assuming all recommended suitable soil is salvaged and best-
management practices are employed during reclamation activities. The expected disturbed area will be
• determined by the design of the haul road. The weight-average calculation of suitable soil. recommended
for salvage across the area and the resulting total cubic yards of salvageable soil will be determined after
the mine plan is developed and the haul road design is completed.
2.04.10 Vegetation Information
The objective of this section is to meet the requirements of Rule 2.04.10 et seg. by describing the general
vegetation community types and distribution within the permit boundary revision azea and providing
vegetation data in sufficient detail to facilitate development of a revegetation plan and performance
standards for the disturbed area associated with the South Taylor and/or Lower Wilson mining areas.
General Vegetation Information -Permit Revision Area
General vegetation mapping information was developed based on the following information:
• Colowyo Coal Company Permit C-81-019 -Application for Permit Renewa]/Permit Revision -
Mining-Section 2.04.10 (Colovryo Coal Co., 1991)
• Vegetation Inventory of the Danforth Hills Project, Rio Blanco County Colorado (by Hamer and
Associates, Inc. for Consolidation Coal Company, January, 1985) (see Exhibit 10, Item 5);
• Production Evaluation for the Sagebrush and Mountain Shrub Reference Areas - Greystone
Environmental Consultants (1999);
• Color aerial photographs (Scale: 1" = 2,000') taken in September 1997;
• Digital 1.5 meter-resolution true color remote sensing imagery exposed in the summer of 2002;
and
• • Digital 0.5-meter resolution color-infrared remote sensing imagery exposed in September of
2005.
South Taylor/Lower Wilson- Rule 2, Page 59 RevlSion Date: 4/16/!)7
Revision No.: PR-02