Mar 18 2011 mitigation plans.pdfI>andscape .l rchiteture
.V K U: c.
FOR TREE CUTTING ACTIVITY
AT 7316 164 th Street SW
Prepared by Burrus Design Group
March 18, 2011
RECEIVED
MUMM M3 11
DEVELOPMENT SERVICES
COUNTER
Subject site is an engineered slope constructed in 2000. Site currently is covered with rip
rap type stone with native plants erupting through the stone periodically.
The owners of the property at 7316 164"' Street SW cut down twenty (20) existing trees
as part of their maintenance of the site. This activity was reported to the City of Edmonds
and it was established that permits were required for this work that had not been obtained.
As a result of this the City has required a replanting plan and mitigation plan be created.
The goal of these documents is to establish criteria whereby the vegetation that was cut
down is removed, trees cut down are replaced and methods proposed to keep this slope
and the wildlife habitat on and around it maintained.
Included in the report are a Tree Replacement Plan prepared by Burrus Design Group
which specifies the type of trees to be installed and their size and locations.
The Mitigation Plan addresses the various factors used to determine how best to plant and
maintain the slope including timing, special considerations for planting, a schedule for
maintenance of vegetation on the slope and a monitoring program.
Impacts:
1. Trees cut were left in place on the slope. This additional weight is a potential
problem for the stability of the slope.
2. Wildlife habitat has been minimally effected by the removal of these twenty trees.
6431. NE 153rd St. 425.7.50, 581.3
Kenmore, WA 9802€1 burr usdesignCa7frontier. com
Clay/Kerr Mitigation Plan
March 18, 2011
Page 2
3. Erosion possibilities are minimal where trees were removed since it has exposed
no bare earth.
Mitigating Actions:
1. Removal of Felled Trees: Remove branches from felled trees. Branches under 2"
diameter may be left on the slope to decompose. Branches shall be removed from
the site if they are too numerous. Geotechnical Engineer shall make this
determination at time of removal.
Because the upper part of the slope is the most highly stabilized, felled tree trunks
and large branches shall be removed via the drive above the slope.
If the material were to be removed downslope as suggested by the City there is a
stronger possibility of compromising the slope, especially the toe of the slope
where it is in a native state. If materials were taken off site in this direction
gouges could be made to the slope that would concentrate water flow in the future
and thus encourage erosion. Repair of such soil disruption would further impact
existing native vegetation. The upper slope area is largely covered in Himalayan
Blackberry (Rubus discolor) so would not be negatively impacted from this
activity.
Removal of tree trunks using a choker set up at the end of the drive has been
approved by Robinson Noble, the Geotechnical Engineers who designed the
slope. However, the City of Edmonds engineering department would prefer
another method of removal.
Because the slope is covered with Blackberries as noted above, it is my opinion
that removing the tree trunks using the choker method would benefit the site by
knocking back some of the blackberries.
Therefore, it is proposed that the tree trunks be cut into lengths no longer than
10', attached to the choker and dragged up hill. The route used to move the tree
trunks off the hill shall be established at the pre -construction meeting.
It is my opinion that carrying the debris off the slope by manpower would
endanger both those doing the work (steep slope and large rock provide ample
opportunity for injury) and the existing vegetation. The latter damage would occur
if pieces of trunk were dropped in transport and went crashing through existing
underbrush. Further intrusion into the vegetation would be needed to remove
those pieces that had been dropped.
Clay/Kerr Mitigation Plan
March 18, 2011
Page 3
Areas that have been disturbed by removal activities shall be seeded with a native
grass seed mix and covered with clean straw as mulch.
2. Tree Selection for Revegetation: Slope shall be replanted at a ratio of 2:1 for trees
felled. This is a total of 40 proposed trees.
Trees cut down were Alder and Big Leaf Maple. These are both short lived trees
with negative impact on steep slopes. Alders tend to grow vertically for many
years but with time start to lean away from the slope. Eventually they topple over,
undermining that portion of the slope where their rootball was. Big Leaf Maples
on the other hand grow to maturity but in senescence lose large branches or whole
trunks. The impact of either of these situations would have dire consequences to
this slope. Robinson Noble has noted that cutting the trees down was a benefit to
the slope rather than having them blow over in a wind storm as is their nature.
Trees proposed for revegetation are native to the vicinity, have wildlife habitat
value, need minimal maintenance (human intrusion and safety factors) and will
help to stabilize the slope.
Vine Maples (Acer circinatum) and Western Hazelnut (Corylus cornuta) are the
trees of choice for this site. They are small, multi -stemmed trees. Their shrubby
growth habit diversifies the predominant habitat provided by Alders and
Himalayan Blackberries present on the site. Habitat on surrounding slopes is
mainly composed of mature forests of Alder, Big Leaf Maple and Western Red
Cedar.
PERFORMANCE STANDARDS:
1. An as -constructed plan showing location of newly planted trees shall be prepared
following planting and sent to the Owners, City of Edmonds and monitoring
company.
2. Success of this planting shall be met if 85% of the trees installed survive. Survival
shall be defined as active growth taking place on a minimum of 60% of the tree.
3. If any tree fails to meet this requirement in any of the monitoring years it shall be
replaced the following October at the size originally specified.
Clay/Kerr Mitigation Plan
March 18, 2011
Page 4
CONSTRUCTION STANDARDS:
1. A preconstruction meeting shall be held on site with the following persons
present: City of Edmonds, Landscape Architect, Owners or their representative
and persons who will be performing the removal, mulching and planting work.
Location and Planting of Replacement Trees: a mix of Vine Maples and Western
Hazelnuts, 40 total, 4-5' ht with a minimum of 2 stems shall be installed in any
areas on site where there is exposed ground. Areas covered with stone shall not be
disturbed in order to plant. First preference shall be to plant on those areas that
have the least slope to promote successful establishment of new trees. In areas
where degree of slope would expose the rootball, branches from the felled trees
shall be used to create a dam on the downhill side of the planting area. (See
attached Tree Replacement Plan and Slope Planting Detail)
Vegetation within 4' of newly planted trees shall be cut to the ground. Mulch
newly planted trees with 3" of clean straw in 4' radius circle from trunk. Keep
straw 6" away from trunk.
Tie a 12" length of biodegradable material such as sisal, hemp or other spray
painted orange loosely around a branch of each tree at approximately waist
height.
2. Timing for mitigation work: Removal of felled trees and branches shall occur in
mid to late Spring. This will allow native vegetation that was disturbed by the
process to re-establish in the growing season.
Installation of trees for revegetation shall occur in October. Exact time of
installation shall be determined by onset of seasonal rains. Install trees after first
good rain of the season so ground is moist but not saturated.
Following the proposed schedule will maximize success of both recovery of any
existing plants impacted by the work and establishment of new trees.
Estimated duration for removal work is 7 days with 3 men. Estimated time of
installation as described above is 2 days with 3 men.
3. No grading is proposed for this site. Any bare ground shall be mulched with clean
straw 3" deep.
Clay/Kerr Mitigation Plan
March 18, 2011
Page 5
4. Maintenance of Site: New saplings and sprouts off existing stumps shall be cut to
within 3" of the ground before they reach 3" in diameter. These trimmings may be
left on site to decompose.
Vegetation within 4' of newly installed trees shall be cut to the ground each year
in early summer for the first 3 growing seasons. Monitoring report in the third
year shall advise if this activity needs to continue and for how long.
MONITORING PROGRAM:
1. A monitoring program shall begin upon completion of installation of new trees.
Because there are only forty trees being installed all trees shall be evaluated at
each monitoring session. Trees shall be numbered on prepared as -constructed
drawing. This numbering shall be used throughout the monitoring period.
2. Reports shall include an evaluation of each tree including approximate height and
percent of active growth. Photos shall be taken of ten representative trees and
shall be included in each report. Photos shall include the most and least healthy
trees evaluated.
Schedule: Monitoring shall last for three years.
First monitoring report will be prepared one month after installation
Thereafter reports shall be generated at the beginning and end of the first and
second growing seasons and at the end of the third growing season.
4. Copies of all reports shall be provided to City and to Owners.
5. Monitoring reports shall be prepared by the same person each year. That person
shall demonstrate a thorough understanding of the goals and objectives of this
monitoring plan.
6. In the event of catastrophic failure of mitigation plantings (death of more than
50% of trees) monitoring period will restart at installation of replacement trees.
CONTINGENCY PLAN:
1. In the event that success standards for mitigation plantings are not met corrective
measure will be taken. They shall include substitution of tree type, changes to
installation techniques, maintenance measures or other actions as are warranted.
2. Landscape Architect shall determine corrective measures to be taken.
Clay/Kerr Mitigation Plan
March 18, 2011
Page 6
3. In the event that success standards for mitigation plantings are not met corrective
measure will be taken. They shall include substitution of another type of tree,
changes to installation techniques, maintenance measures or other actions as are
warranted.
FINANCIAL GUARANTEES:
1. In the event bonds are needed for this project, the following is a breakdown of
costs for implementation of the mitigation plan:
Removal of branches from felled trees using chainsaw $350.00
Removal of cleaned trunks from site 2,500.00
Installation of straw mulch in disturbed areas 200.00
Clearing of brush for installation of replacement trees 400.00
Installation of 40 replacement trees 29400.00
Monitoring for three years (six reports) 2,400.00
Total price: $8,250.00
Prices include labor, materials and equipment
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BURRUS DESIGN GROUP
Landscape Architeture
REPORT.
EROSION HAZARD .
7316 164"' Street SW
Prepared by Burrus Design Group
March 18, 2011
Contact Information:
Proposed Action for Site:
f� ti a � r n ��� � }q
rliIk g+Jx„�m�Yew«��" ticnr, Warrtumti�;:
MAR 12,011
9,XV 1,OPW'pal"i"
Diana Clay, Clay Enterprises
425-776-1234
Request is made for a permit to install 40 4-5' ht multi -stemmed native trees to mitigate
for the cutting down of 20 alders on this site. The stumps and roots of the alders remain
in place. Trunks and large branches resultant from the felling operation are to be removed
from the site per Mitigation Plan attached.
Subject Property:
Site includes a flat area on the east side with a residence and paved driveway. To the west
of this lies a steep slope (40% or greater) falling away from the home and drive. This site
lies within the North Edmonds Earth Subsidence and Landslide Hazard Area as defined
by the City of Edmonds.
Slope has been stabilized since 1999 when it was modified according to a plan by
Robinson Noble Geotechnical Engineers. Slope continues to be successful.
Critical Areas on and around Site:
In addition to the steep slopes noted above this site located is located in a mapped fish
and wildlife habitat conservation area. There is evidence of year round seeps but no
stream was observed.
Impact of Proposal on Site:
There is no increased erosion hazard on this site caused by the felling of the trees, the
removal of the resultant debris (see Mitigation Plan for techniques of removal and
protection procedures), or the installation of the trees proposed as mitigation for those
felled.
6431 NE 153rd St. 425-750,5813
1ac:mnore, WA 98028 btirrtisdesign((�fi�ontier.coi-x
Clay/Kerr Critical Areas Report
Erosion Hazards
March 18, 2011
Page 2
Because the trees were simply felled and their stumps and roots remain in place no soil
was exposed by this action. Additionally, no increase in erosion due to raindrop impact is
likely because the slope is heavily armored with rip rap along its entire face.
Water will not be affected by any proposed operations since there will not be exposed
soil. Dewatering of the site will continue through existing pipes across the engineered
slope.
Trees are to be installed in areas that have as little slope as possible with the downhill
side of the planting areas reinforced with tree branches from felling operation. All
installed plant material shall be mulched with 3" of clean straw covering any soil exposed
by planting operation.
Proposed trees shall eventually replace canopy lost due to felling operation. These new
trees are of smaller stature than those removed and will diversify habitat by adding
another layer of vegetation and establishing a canopy of leaves that offer not only
protection to wildlife but reduction to raindrop velocity prior to their hitting the slope.
Sequencing:
As spelled out in the Mitigation Report attached, debris removal work is proposed to
occur in late spring or early summer to allow for any vegetation damaged by the removal
process to recover during the growing season.
Installation of the proposed trees shall be done in mid to late October, after the seasonal
rains begin. This will allow the trees to get established with the minimum amount of
stress and demand on their roots as would be present during active growth.
Report was written and research done by Ruth Burrus of Burrus Design Group,
Registered Landscape Architect.
Landscape Architeture
REPORT
LANDSLIDE HAZARD.
6' 1h StreetSW
Prepared by Burrus Design Group
March 18, 2011
Contact Information:
Proposed Action for Site:
Diana Clay, Clay Enterprises
425-776-1234
Request is made for a permit to install 40 4-5' ht multi -stemmed native trees to mitigate
for the cutting down of 20 alders on this site. The stumps and roots of the alders remain
in place. Trunks and large branches resultant from the felling operation are to be removed
from the site per Mitigation Plan attached.
Subject Property:
Site includes a flat area on the east side with a residence and paved driveway. To the west
of this lies a steep slope (40% or greater) falling away from the home and drive. This site
lies within the North Edmonds Earth Subsidence and Landslide Hazard Area as defined
by the City of Edmonds.
Slope has been stabilized since 1999 when it was modified according to a plan by
Robinson Noble Geotechnical Engineers. Slope continues to be successful.
Critical Areas on and around Site:
In addition to the steep slopes noted above this site located is located in a mapped fish
and wildlife habitat conservation area. There is evidence of year round seeps but no
stream was observed.
Impact of Proposal on Site:
There is no increased landslide hazard on this site caused by the felling of the trees, the
removal of the resultant debris (see Mitigation Plan for techniques of removal and
protection procedures), or the installation of the trees proposed as mitigation for those
felled.
6431 NE, 1 ,53rd St, 425,750,5813
Keninore, WF'a 98028 burrs.isde!;ignC(�)ft-ontier.c(.)rii
Clay/Kerr Critical Areas Report
Landslide Hazards
March 18, 2011
Page 2
Because the trees were simply felled and their stumps and roots remain in place no soil
was exposed by this action. No increase in landslide hazard due to raindrop impact is
likely because the slope is heavily armored with rip rap along its entire face. This is a
slope that has been stable for over ten years (see letter from Geotechnical Engineers
Robinson Noble dated March 21, 2011). Debris removal shall be done by hand and at the
top of the slope where it is most secure. No work is proposed at the toe of the slope where
it is weakest.
Because all work will occur in areas that are heavily armored no changes will be made to
the existing water flow patterns. This slope is dewatered by many pipes lying beneath it.
These pipes will not be impacted by this work.
Water quality in the area will not be affected by any proposed operations since there will
not be exposed soil.
Trees shall be installed in areas with as little slope as possible and shall have the downhill
side of the planting areas reinforced with tree branches from felling operation. All
installed plant material shall be mulched with 3" of clean straw covering any soil exposed
by planting operation.
Proposed trees shall be of smaller stature than the alders that were removed. The natural
life cycle of an alder (Alnus rubra) is to grow vertically to a height of 40-60' and then
begin to lean over the slope. Eventually the weight of the tree pulls the rootball out of the
slope, thus exposing it to danger of erosion and landslide. The proposed trees do not
follow that pattern. They are small trees (Vine Maple/Acer circinatum and Western
Hazelnut/Corylus cornuta) that regenerate by means of sprouting new trunks from the
base rather than growing taller. Their eventual height is between 20 and 30'. Their roots
will provide shallow stabilization of the slope.
Sequencing:
As spelled out in the Mitigation Report attached, debris removal work is proposed to
occur in late spring or early summer to allow for any vegetation damaged by the removal
process to recover during the growing season.
Installation of the proposed trees shall be done in mid to late October, after the seasonal
rains begin. This will allow the trees to get established with the minimum amount of
stress and demand on their roots as would be present during active growth.
Report was written and research done by Ruth Burrus of Burrus Design Group,
Registered Landscape Architect. See attached field notes and photos.
BURRUS DESIGN GROUP
Landscape Architeture
March 18, 2011
Ms. Diana Clay
Clay Enterprises
2002 196"' Street SW
Lynnwood, WA 98036
Re: Supplemental Information in
Response to Review Comments
Edmonds, WA
File # 2592-OOIA
Dear Ms. Clay,
RECEIVED
SERViCES
��t11i��G"1"l lI
I am hereby providing additional information as requested by comments in a letter from
the City of Edmonds dated December 21, 2010. This is in addition to the letter you have
received from Robinson Noble dated March 1, 2011 providing additional information
about these topics.
Clarification is provided for the following sections of ECDC 24.40.240C as follows:
Code reads:
C. Minimum Performance Standards for Restoration
1. For alterations to frequently flooded areas, wetlands and fish and wildlife
habitat conservation areas, the following minimum performance standards
shall be met for the restoration of a critical area; provided, that if the violator
can demonstrate that greater functional and habitat values can be obtained,
these standards may be modified:
a. The historic structural and functional values shall be restored,
including water quality and habitat functions;
b. The historic soil types and configuration shall be replicated;
c. The critical area and buffers shall be replanted with native vegetation
that replicates the vegetation historically found on the site in species
types, sizes and densities. The historic functions and values should
be replicated at the location of the alteration; and
d. Information demonstrating compliance with the requirements in
ECDC 23.40.130, Mitigation plan requirements, shall be submitted
to the city planning division.
6431 NE 153rd fit. 425,750 5 31.3
KCDIDOre, WA 98028 t»arrLisdesibiiC�)? i-oiitle r,coi.yi
Supplemental Information Letter
March 18, 2011
Page 2
Responses:
1. a. and c. Existing trees on site are predominantly Red Alder
(Alnus rubra). These trees have a relatively short lifespan. They
tend to grow vertically for several years and then start to lean and
finally fall over. This disrupts the rootball and can compromise
the slope. Big Leaf Maples (Acer macrophyllum) are also in the
area. Their growth habit is as multi -trunked trees with a lifespan
of approximately 40 years. During their decline (senescence)
they break apart and large portions of the tree can break off and
fall onto the slope. Depending on the size of the segment that
falls and the manner in which it lands, this activity can be
detrimental to the slope.
The trees specified for replacement are native to the area but do
not follow either of the above outlined growth patterns. Vine
Maples (Acer circinatum) and Western Hazelnut (Corylus
cornuta) remain small in stature and are multi -stemmed. This
means that none of the trunks gets large enough to cause damage
should it break off or die.
Because they stay small they will not need any human intrusion
onto the site to maintain them. Additionally they provide a more
diversified habitat for small birds and herbivores.
Water quality will not be affected since no grading will be taking
place, no bare soil was exposed by the felling of the trees and
proposed plantings shall be mulched with 3" of clean straw.
c. See letter from Robinson Noble
d. See Mitigation Plan by Burrus Design Group dated March
18, 2011
Code reads:
2. For alterations to flood and geological hazards, the following minimum
performance standards shall be met for the restoration of a critical area'
provided that if the violator can demonstrate that greater safety can be
obtained, these standards may be modified:
a. The hazard shall be reduced to a level equal to or less than the
predevelopment hazard;
Responses:
Supplemental Information Letter
March 18, 2011
Page 3
b. Any risk of personal injury resulting from the alteration shall be
eliminated or minimized; and
c. The hazard area and buffers shall be replanted with native vegetation
sufficient to minimize the hazard.
2.a.Hazard to the slope has been and will be diminished by cutting of
hazardous species of trees and replacement with trees that will not
pose a hazard in the future.
b. Risk of personal injury is diminished by selection of trees that do not
need maintenance following establishment period of 3 years.
c. Species selected to replant area are natives and are being replanted at
a 2:1 ratio.
Please contact me if you need additional information about any of these items.
Sincerely,
Ruth Burrus
Landscape Architect
r U em. DESIGN
.F^ ..A°Wim/
Landscape Architeture
STREAMREPORT FOR
7316164 th Street SW
Prepared by Burrus Resign Group
March 18, 2011
Contact Information:
Proposed Action for Site:
Diana Clay, Clay Enterprises
425-776-1234
Request is made for a permit to install 40 4-5' ht multi -stemmed native trees to mitigate
for the cutting down of 20 alders on this site. The stumps and roots of the alders remain
in place. Trunks and large branches resultant from the felling operation are to be removed
from the site per Mitigation Plan attached.
Subject Property:
Site includes a flat area on the east side with a residence and paved driveway. To the west
of this lies a steep slope (40% or greater) falling away from the home and drive. This site
lies within the North Edmonds Earth Subsidence and Landslide Hazard Area as defined
by the City of Edmonds.
Slope has been stabilized since 1999 when it was modified according to a plan by
Robinson Noble Geotechnical Engineers. Slope continues to be successful.
Critical Areas on and around Site:
In addition to the steep slopes noted above this site located is located in a mapped fish
and wildlife habitat conservation area. There is evidence of year round seeps but no
stream was observed nor was one found on the Edmonds Critical Areas Inventory Map.
Impact of Proposal on Site:
Because no stream was found no impact to a stream is predicted by this action.
Report was written and research done by Ruth Burrus of Burrus Design Group,
Registered Landscape Architect. See attached field notes and photos.
5431 NE J.5 3rd St. 425,750.5513
Kenmore, WA 98028 bi,irriisdesigzi(�frar�rti(-,r,cot-ii
BURRU'S DESIGN GROUP
Landscape Architeture
"_"LAY/KERR CRITICAL ARE
REPORT O .,
WILDLIFE, ..
7316164 th Street SW I
Prepared by Burrus Design Group
March 18, 2011
Contact Information: Diana Clay, Clay Enterprises
425-776-1234
Proposed Action for Site:
Request is made for a permit to install 40 4-5' ht multi -stemmed native trees to mitigate
for the cutting down of 20 alders on this site. The stumps and roots of the alders remain
in place. Trunks and large branches resultant from the felling operation are to be removed
from the site per Mitigation Plan attached.
Subject Property:
Site includes a flat area on the east side with a residence and paved driveway. To the west
of this lies a steep slope (40% or greater) falling away from the home and drive. This site
lies within the North Edmonds Earth Subsidence and Landslide Hazard Area as defined
by the City of Edmonds.
Slope has been stabilized since 1999 when it was modified according to a plan by
Robinson Noble Geotechnical Engineers. Slope continues to be successful.
Critical Areas on and around Site:
In addition to the steep slopes noted above this site located is located in a mapped fish
and wildlife habitat conservation area. There are no specific high value animals or fish
noted on the Edmonds Critical Areas Inventory Map. There is evidence of year round
seeps but no stream was observed.
Impact of Proposal on Site:
The area surrounding this site is largely covered with mature forests of native vegetation.
Predominant to the south is Red Alder (Alnus rubra). To the north Big Leaf Maple (Acer
macrophyllum) and Western Red Cedar (Thuja plicata) are also present.
64:31 NE 153rd St:. 425,7 X0,581.3
Kenmore, WA 98028 bi.xrrusdesigii(cx?I'roiitier.coitx
Clay/Kerr Critical Areas Report
Wildlife Habitat
March 18, 2011
Page 2
Because this site was largely disturbed in 1999 when the dewatering work was done the
habitat on adjacent sites is much more diverse than on subject site.. The predominant
plant material on site at this time is Himalayan Blackberry (Rubus discolor) and Red
Alder (Alnus rubra). The trees that were cut down were Red Alder.
These plants tend to grow as monocultures, providing habitat of limited importance or
diversity on the site.
The proposed trees trees (Vine Maple/Acer circinatum and Western Hazelnut/Corylus
cornuta), though not native to the specific site are indigenous to the Pacific Northwest
and will diversify the habitat provided in this area, especially for small birds and
herbivores.
Proposed trees are smaller in stature than the alders that were removed. The natural life
cycle of an alder (Alnus rubra) is to grow vertically to a height of 40-60' and then begin
to lean over the slope. Eventually the weight of the tree pulls the rootball out of the slope,
thus exposing it to danger of erosion and landslide. The proposed trees do not follow that
pattern. They are small trees that regenerate by means of sprouting new trunks from the
base rather than growing taller. Their eventual height is between 20 and 30'. In addition
to habitat, their roots will provide shallow stabilization of the slope. A further advantage
of planting these smaller trees is that they will not need any maintenance once they are
established.
The steepness of the slopes in this area keeps human intrusion to a minimum (other than
when needed for maintenance). Further, the slopes are of significant width on this site
(over 100') that any animals resident to the area or traversing through it would not be
effected by the cutting of these trees or by the installation of new trees.
Trees shall be installed in areas with as little slope as possible and shall have the downhill
side of the planting areas reinforced with tree branches from felling operation. All
installed plant material shall be mulched with 3" of clean straw covering any soil exposed
by planting operation.
Wire cages will also be installed around the trunks of newly planted trees to minimize
damage to cambium from rodents.
Sequencing:
As spelled out in the Mitigation Report attached, debris removal work is proposed to
occur in late spring or early summer to allow for any vegetation damaged by the removal
process to recover during the growing season.
Clay/Kerr Critical Areas Report
Wildlife Habitat
March 18, 2011
Page 3
Installation of the proposed trees shall be done in mid to late October, after the seasonal
rains begin. This will allow the trees to get established with the minimum amount of
stress and demand on their roots as would be present during active growth.
Report was written and research done by Ruth Burrus of Burrus Design Group,
Registered Landscape Architect. See attached field notes and photos.
Clay/Kerr Critical Areas Report
Wildlife Habitat
March 18, 2011
Page 3
Installation of the proposed trees shall be done in mid to late October, after the seasonal
rains begin. This will allow the trees to get established with the minimum amount of
stress and demand on their roots as would be present during active growth.
Report was written and research done by Ruth Burrus of Burrus Design Group,
Registered Landscape Architect. See attached field notes and photos.
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