2018-10-18_GENERAL DOCUMENTS - C1981019

• Permit No: C1981019
• IBM Index Class Name: General Documents
• Doc Date: 10/18/2018
• Doc Name Note: for SL14
• Doc Name: Proposed Decision and Findings of Compliance
• From: DRMS
• To: Colowyo Coal Company L.P.
• Email Name: ZTT
• Media Type: D
• Archive: No

Proposed Decision and Findings of Compliance October 2018
Partial Phase II and III Bond Release SL-14 Page 10
Phase III Bond Release Parcel Results – EP041, EP045, EP046, EP047, EP047, EP049, EP050,
WP003, WP004 and WP012/013

2016 Cover: Herbaceous cover: 42.64%
Herbaceous cover standard (90%): 18.29%
The 2016 sample data successfully exceeds 90% of the herbaceous cover
standard.

2017 Cover: Herbaceous cover: 36.07%
Herbaceous cover standard (90%): 20.88%
The 2017 sample data successfully exceeds 90% of the herbaceous cover
standard.

2016 Productivity: Herbaceous production: 789.60 lbs/acre
Herbaceous production standard (90%): 359.30 lbs/acre
The 2016 sample data for the Section 16 Pit successfully exceeds 90% of the
herbaceous productivity standard.

2017 Productivity: Herbaceous production: 913.00 lbs/acre
Herbaceous production standard (90%): 420.30 lbs/acre
The 2017 sample data successfully exceeds 90% of the herbaceous
productivity standard.

2016 Diversity: Six perennial grasses were sampled between 3% and 50% relative cover and
a perennial forb composition of 11.71% in relative cover. This exceeds the
requirement for a minimum of at least two perennial grasses between 3%
and 50% relative cover, and all forbs combined with between 1% and 30%
relative cover. The 2016 sample data successfully exceeds reclamation
success diversity standards.

2017 Diversity: Five perennial grasses were sampled between 3% and 50% relative cover
and a perennial forb composition of 9.08% in relative cover. This exceeds
the requirement for a minimum of at least two perennial grasses between 3%
and 50% relative cover, and all forbs combined with between 1% and 30%
relative cover. The 2017 sample data successfully exceeds reclamation
success diversity standards.

2016 Woody Plant Density: Three shrub patches were sampled that occupied 10.1 acres of the
224.6 acres (4.5%) and resulted in an average of 1,031 woody plants
per acre. The 2016 sample data successfully exceeds 150 woody
plants per acre on 3% of the reclaimed area as required by Section
4.15.8 in Coloyo’s PAP.

2017 Woody Plant Density: Three shrub patches were sampled that occupied 10.1 acres of the