PERMFILE62258

• Permit No: C1980001
• IBM Index Class Name: Permit File
• Doc Date: 12/11/2001
• Doc Name: Revegation Monitoring Report for Reclaimed Areas
• Section_Exhibit Name: 4.4 Appendix 4.4-2 Supplement
• Media Type: D
• Archive: No

• perennial grasses, each contributing more than three percent of the relative cover then this
species diversity standazd is waived.
Shrub Density. Along each transect tape sampled in the Moffat Reclaimed Area shrub density
data was collected using a modified belt transect by sampling one meter along each side of the
transect tape. The right hand side of the transect tape was called Side A and the left hand side of
the tape was called Side B. Data collected from each side were added into a transect value which
represents the number of shrubs sampled in the 100 squaze meter sample plot. These data were
then converted into the number of shrubs per acre as outlined in the Petmit. The Permit standazd
for shrub density on the Moffat Reclaimed site is 1,000 stems per acre.
Statistical Analysis of Data. As required by the Division's Guidelines, it is not necessary to
achieve sample adequacy for interim reclamation monitoring and a minimum often transects on
each reclaimed site being sampled is recommended. In this analysis, however, the determination
was made that sample adequacy would be achieved in the sampling conducted on the Conveyor
Reclaimed Site as well as on the two reference areas. A total of 20 sample plots were sampled on
each site sampled for purposes of defining the interim revegetation success. However, all of the
data collected in this evaluation were analyzed for sample adequacy in order to define future
sampling efforts.
On the three sites sampled for sample adequacy, all of the field data were analyzed in terms of
total plant cover to determine whether sample adequacy was achieved prior to leaving the site
being sampled. On the Conveyor Reclaimed Site and on the two reference azeas sampled, the
• minimum sample size of 15 samples, as required by the Division's Guidelines was sampled and
the data were analyzed for sample adequacy. Sample adequacy based on allowable plant cover
were determined in the office as soon as possible after the field data were collected to detennine
whether a sufficient number of samples had been collected.
Results
Field Sampling Dates. All of the field data utilized in this evaluation were collected between
August 3-14, 1999. At the time of all of the field sampling, the plants were actively growing and
it is believed that the sampling was conducted during an optimum period of growth, when the
plant cover and production was near its peak. In this evaluation a total of 117 plant species were
identified in the 125 cover transects and 20 shrub density transects sampled in this evaluation. A
list of all of the plant species encountered in the field sampling efforts in this evaluation aze
presented in Table 1, Edna Mine Plant Species List.
Sample Adequacy. A statistical analysis of the data collected to characterize the plant cover and
production from the two mine sites evaluated in this sampling effort are presented in Table 2,
Edna Mine Sample Adequacy Comparisons. This comparison documents-that a sufficient
number of samples were collected to describe the pazameters of allowable plant cover at the 90
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