2010-08-30_REVISION - C1981008 ‎(4)‎

• Permit No: C1981008
• IBM Index Class Name: REVISION
• Doc Date: 8/30/2010
• Doc Name: Revised Bond Release Application Part 2
• From: Greg Lewicki and Associates, PLLC
• To: DRMS
• Type & Sequence: SL12
• Email Name: MLT
• Email Name: SB1
• Media Type: D
• Archive: No

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and mostly of seeded bunchgrasses in the reclaimed area. Annuals contributed substantially to
cover in both areas, and required an adjustment to total cover in the reference area as
discussed below in Comparison to Standard.
Table 5. Summary and comparison of vegetation cover data measured at Dryland Pasture reclaimed
area and Dryland Pasture reference area, 2007.
Cover is mean absolute % cover unless
otherwise noted. Dryland Pasture
Reclaimed Area, 2007 Dryland Pasture
Reference Area, 2007
Nonve etated* 71.6 69.7
Noxious weeds* 0 0
Annual grasses 1.0 0.2
Annual forbs 15.3 14.1
Total annual plants absolute cover 16.3 14.3
Total annual plants (relative cover, =
absolute cover of annuals / absolute cover of
all vegetation excluding noxious weeds 57.4 47.2
Total annual plants allowed in total cover for
reclaimed area 13.4
Shrubs 0 5.3
Perennial grasses 10.5 1.1
Perennial forbs 1.5 9.5
Total mean cover of desirable plants, not
adjusted 28.4 30.3
Total mean cover of desirable plants,
adjusted for excess annuals in reclaimed
area 25.5
Standard deviation of z 8.9 6.2
Q =90% of the standard 27.3
Number of samples 22 21
Sample adequacy demonstrated Yes Yes

Comparison Statistics
t, calculated t-value 0.9 38
tt (table t-value) (1-tailed, alpha=0.10,
df = n-1
1.323
*Not counted toward total cover of desirable plants
Comparison to standard. Annual grasses and forbs comprised 16.3% (57.4% relative cover)
in the reclaimed area and 14.3% (47.2% relative cover) in the reference area. CDRMS
regulations specify that annuals can be included in reclaimed area total cover up to 10% relative
cover, or up to the amount of relative cover of annuals in the reference area. Because the
relative cover of annuals in the reclaimed area exceeded 10% relative cover and exceeded the
relative cover of annuals in the reference area, it was necessary to adjust the total cover in the
reclaimed area by deleting the excess annuals. The amount of annuals allowed in the
reclaimed area was calculated as 47.2 (the relative cover of annuals in the reference area) x
28.4 (total desirable vegetation cover in the reclaimed area) = 13.4% annual cover allowed in
the reclaimed area. This reduced the total cover of desirable vegetation in the reclaimed area
from 28.4% to 25.5%, and this adjusted total was then compared to Q. Following direction from
15