2015-10-06_PERMIT FILE - C1981019A ‎(3)‎

• Permit No: C1981019A
• IBM Index Class Name: Permit File
• Doc Date: 10/6/2015
• Doc Name: Performance Standards
• Section_Exhibit Name: Volume 15 Rule 4
• Media Type: D
• Archive: Yes

RULE 4 PERFORMANCE STANDARDS
c) Approximately 48 inches of topsoil will be placed to replicate common topsoil depth
conditions in the surrounding area in stands of this nature. Once the topsoil has been placed,
it will be cross -ripped with a dozer or by other appropriate means to ensure the material is in
a loose, rough condition to encourage infiltration of rain/snowmelt an root development.
d) The Sagebrush Steppe mix has been modified to reduce the volume of "low shrubs" in favor
of tall shrub components of the mix. The grasses currently included in the mix were also
reduced to minimize competition, while still providing some soil stabilization function. The
entire trial area will be seeded with the modified Sagebrush Steppe Mix as seen below. In the
event individual components of the mix are unavailable, guidance from the Division will be
sought prior to implementation of the trial. Weedguard fabric or its equivalent will be placed
in rows (at intervals of approximately 22 feet) and will be used to severely reduce
competition between the containerized plantings and annual weeds and grasses. Please see
the "Expected Field Implementation Plan for Tall Shrub Field Trials" illustration below.
e) Containerized 2-3 foot serviceberry and chokecherry plants will be utilized from the most
similar source elevation available in the region. Based on the volume of containerized plants
included in the trial (550), a combined number of (300) serviceberry and chokecherry plants
within the trial (five years after implementation) will be considered a successful
demonstration of Colowyo's ability to establish these species. Supplemental planting of
serviceberry and chokecherry should be initiated the year following initial trial establishment
should initial survival of the plantings be very low.
f) Containerized serviceberry and chokecherry plants will be placed through the weed barrier
fabric by hand (or by mechanical means if practical and economically feasible) as per best
practices with regards to depth, etc. Proper planting holes are important in transplant
survival. Holes should be two to three times wider than the root ball. If the soil is clay and
the sides of the hole become glazed during digging, the sides of the hole should be roughened
with a spade. Holes should be prewatered before planting in dry soils. This prevents initial
postplant water from migrating away from the root ball. Every effort will be made to plant at
the same depth that the tree or shrub was growing in its previous location. Damaged roots
will be clean-cut with a sharp blade prior to planting. If any circling or kinked roots are
discovered during the transplanting procedure, they will be severed to prevent future girdling
of the plant. Every effort will be made to orient the tree or shrub in the same direction,
relative to the sun, as it was facing in the previous location. Plantings will be performed in
the fall by properly trained personnel. Serviceberry and chokecherry planting densities will
be one plant every four linear feet (1/2 serviceberry, 1/2 chokecherry) within a row.
g) Colowyo will place contour furrows immediately above approximately every third fabric row
(approximately every 66 feet). The trial will exhibit alternating bands of modified Sagebrush
Steppe mix (approximately 17 feet), fabric/containerized plantings (4-5 feet wide), modified
Sagebrush Steppe mix (approximately 12 feet), contour furrow (approximately 5 feet). This
pattern should allow for specific emphasis on containerized plantings establishment while
minimizing the risk of excessive erosion during the period of early establishment of the trial
area.
h) An "elk proof' exclusionary fence will be erected around the perimeter of the trial area to
protect it from ungulates immediately after planting activities are completed.
i) In the event of stand failure the area will revert back to sagebrush steppe for the purposes of
Phase III bond release in the future, and will be counted collectively with other sagebrush
steppe areas to meet sample adequacy and reference area comparisons.
2) Colowyo agrees to establish one small (one acre) tall shrub establishment site that that
displays thin topsoil conditions. The location of this field trial will be`along the transition zone between
Sagebrush Steppe and Grassland designated seeding areas (likely between 10% and 15% slope as
illustrated by Map 46).
Collom — Rule 4, Page 33 Revision Date: 9/28/11
Revision No.: PR -03