1987-12-01_PERMIT FILE - C1981017 ‎(286)‎

• Permit No: C1981017
• IBM Index Class Name: PERMIT FILE
• Doc Date: 12/1/1987
• Section_Exhibit Name: Chapter V Table of Contents
• Media Type: D
• Archive: No

Chapter' V
• the pre-disturbance inventory of vegetation. The Sutey seed list;
is found at Chapter V, page 27 .
d. Mulching Techniques.
In revegetation projects along steep slopes in Coal Basin two types ,
of mulching have been used with good success. The preferred method;
of mulching is to apply straw at the rate of 1 1/2 to 2 tons/acre. '
If necessary a separate tackifier is used.
The alternative method is to apply hydro-mulch with conweb 2000
tackifier at the rate of 30 lbs/acre.
Mid-Continent reserves the right to try other mulching techniques, '
such as jute mesh and the many other straw blanket mulches that are
now being developed.
e. Irrigation.
Coal Basin's precipitation ranges from 25 to 35 inches per year and'
in most cases irrigation is not necessary. The company has, in the
past, irrigated parts of the old coal refuse pile revegetated
areas. This has proven to be beneficial during dry summer weather.
As the pile has increased in size and elevation, this has not
proven feasible, due to the distances from water sources. They
iannual precipitation has proven to be adequate for revegetation.
f. Pest and Disease Control.
Damage to vegetation by pests and diseases is not a problem in Coal:
Basin because of the high altitude and cold weather. The U.S.
Forest Service inspects the area annually for pest and disease'
damage as part of its livestock grazing management program. In;
addition, Mid-Continent's environmental staff is careful to watch,
for any signs of problems.
g. Methods to Determine Success of Revegetation.
Western Resource Development Corp. of Boulder, Colorado has,
developed our reference area plan. Meetings were held in 1979 and,
1980 with CMLRD and the OSM, who reviewed and approved the plan.,
Three main reference areas have been established and a number of,
small site specific areas have been studied and cross referenced to
the main reference areas. Approved methods and standards (by CMLRD�
and OSM) are being used in the statistical analysis of the,
herbaceous cover and productivity species diversity and woody plant;
density. The company will maintain the three main reference areas;
and periodically test them throughout the
• 38 Revised 6/91
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