2019-05-03_PERMIT FILE - C1981038A ‎(4)‎

• Permit No: C1981038A
• IBM Index Class Name: Permit File
• Doc Date: 5/3/2019
• Doc Name: Page 56 to 99
• Section_Exhibit Name: Volume 1 2.05 Operation and Reclamation Plans Part 2
• Media Type: D
• Archive: Yes

2.05 APPLICATION FOR PERMIT FOR SURFACE OR UNDERGROUND
MINING ACTIVITIES -- MINIMUM REQUIREMENTS FOR OPERATION
AND RECLAMATION PLANS.
2.05.4 Reclamation Plan
(2) (e) (v) (Con't)
Fertilization Methods
Soil testing will be performed on all final reclaimed areas that are
not plated with topsoil. Soil samples shall be obtained from
representative composite sampling of the upper 12 inches of
growth media within logical reclamation parcels.
Soil will be analyzed for pH, electrical conductivity, organic matter,
nitrate -nitrogen, phosphorus, potassium, calcium, magnesium,
copper, manganese, iron, zinc, and texture/particle size. Standard
analytical procedures shall be utilized. Saturated paste extract for
pH, EC, Na, Ca and Mg. AB-DPTA extract for the remaining
chemical parameters and hydrometer method for particle size
analysis. Particle size analysis will be reported as percent sand
silt and clay.
Phosphorus will be applied prior to seedbed preparation based on
the results of the soil test analyses. Fertility will be visually
assessed and nitrogen fertilizer will be added in a subsequent
growing season, if vegetative growth indicates that such
amendment is warranted.
(vi) Revegetation Success
Data obtained from species diversity studies performed by Harrier -
White Ecological Consultants of Littleton, Colorado, during 1981
and 1982 on three vegetation reference areas nearthe East Mines
were initially used not only to develop a reclamation seed mixture,
but also to determine a reclamation success standard for the
Mines. However, after two vegetation studies performed by Cedar
Creek Associates in 2013 and 2016, it was determined the initial
success standards were not representative of actual revegetation
composition. Cedar Creek compares the species composition to
the approved post -mining land use and proposes a revised
revegetation success criteria which lowers both the woody plant
density standard and revises the diversity standard. Both changes
will provide excellent early erosion control and quality forage for
livestock and wildlife. Refer to the Vegetation Appendix in Volume
9A for further information regarding the revised development of
the success standard.
TR -63 74a 01/18