21-102193-Wetland and Buffer Enhancement Program-06-03-2021-V1HABITAT TECHNOLOGIES
wetlands, streams, fisheries, wildlife – mitigation and permitting solutions
P.O. Box 1088, Puyallup, Washington 98371
253-845-5119 contact@habitattechnologies.net
WETLAND AND BUFFER
ESTABLISHMENT AND ENHANCEMENT
PROGRAM
NEW SINGLE-FAMILY HOMESITE – PARCEL 2921049091
South 359th Street
City of Federal Way, King County, Washington
prepared for
Mr. Pavlo Sokalshyy
@ Dim Construction Inc.
1210 M Street SE, Suite 33
Auburn, Washington 98002
and
Ms. Savanna Nagorski, MS, Land Use Planner
@ESM Consulting Engineers, LLC
33400 – 8th Avenue South, #205
Federal Way, Washington 98003
prepared by
HABITAT TECHNOLOGIES
P.O. Box 1088
Puyallup, Washington 98371-1088
253-845-5119
April 12, 2021
Table of Contents
INTRODUCTION .............................................................................................................................. 1
ENVIRONMENTALLY CRITICAL AREAS ASSESSMENT ............................................................ 1
ENVIRONMENTALLY CRITICAL AREAS DETERMINATION ....................................................... 2
REVISED WETLAND BUFFER REQUIREMENTS ...................................................................... 3
SELECTED DEVELOPMENT ACTION ........................................................................................... 3
MODIFICATION OF WETLAND BUFFER STANDARDS ............................................................. 4
MITIGATION SEQUENCING ........................................................................................................ 6
WETLAND AND BUFFER ESTABLISHMENT AND RESTORATION PROGRAM ........................ 7
MITIGATION FOR UNAVOIDABLE IMPACTS ............................................................................. 7
MITIGATION PLANNING ............................................................................................................. 8
MITIGATION PROGRAM BENEFITS ........................................................................................... 8
MITIGATION LIKELIHOOD OF SUCCESS .................................................................................. 8
DESCRIPTION OF THE MITIGATION PROGRAM ...................................................................... 9
GOAL AND OBJECTIVE OF THE ENHANCEMENT PROGRAM .............................................. 10
SELECTED PLANT COMMUNITIES .......................................................................................... 11
IMPLEMENTATION INSPECTION ............................................................................................. 12
IMPLEMENTATION SCHEDULE ............................................................................................... 13
PROJECT MONITORING ........................................................................................................... 13
STANDARDS OF SUCCESS ..................................................................................................... 13
VEGETATION MAINTENANCE PLAN ....................................................................................... 15
REMOVAL OF INVASIVE NON-NATIVE VEGETATION............................................................ 15
CONTINGENCY PLAN ............................................................................................................... 15
TEMPORARY IRRIGATION ....................................................................................................... 16
PLANTING NOTES .................................................................................................................... 16
FINANCIAL GUARANTEE .......................................................................................................... 16
STANDARD OF CARE ................................................................................................................... 18
FIGURES ........................................................................................................................................ 19
ATTACHMENT ONE – WETLAND AND BUFFER PLANTING PROGRAM ................................ 20
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INTRODUCTION
The document details the Wetland and Buffer Establishment and Enhancement Program
to be implemented as a part of the development of a new single-family homesite within
Parcel 2921049091 (project site) (Figure 1). The project site was approximately 0.86-
acres in size, generally rectangular in shape, and had been regularly managed as a
garden and livestock pasture associated with an adjacent homesite for several years.
The project site exhibited a gentle slope from the northeast to the southwest. The
project site was located within a residential area that was quickly changing from older
homes on moderately sized lots to newer homes infilling vacant lots and the
development of higher intensity residential uses. The area immediately to the west of
the project site was part of the Hylebos Wetlands Regional Park. Access to the project
site was provided via an easement along the eastern boundary that connected to South
359th Street.
Directions to Project Site: From SR18 immediately west of Interstate 5 turn south onto
SR161 (Enchanted Parkway). Continue south on SR161 to the intersection with South
356th Street. Turn west onto South 356th Street and then immediately turn south onto
16th Avenue South. Continue south of 16th Avenue South to South 359th Street. Turn
west onto South 359th Street and continue to project site.
ENVIRONMENTALLY CRITICAL AREAS ASSESSMENT
An assessment of environmentally critical areas within and immediately adjacent to the
project site was completed during June 2016 and between early February through mid-
May 2017, and also included the parcel directly to the south (Parcel 2921049060). This
assessment was completed following the established criteria and methods as defined
within the Corps of Engineers Wetlands Delineation Manual (1987 Manual), the Regional
Supplement to the Corps of Engineers Wetland Delineation Manual: Western Mountains,
Valleys, and Coast Region (2010 Supplement); the Washington State Wetland Rating
System (2014 update), the Washington Department of Natural Resources Water Typing,
and the City of Federal Way Chapter 19.145.
At the time of the 2016/2017 environment assessment both Parcels 2921049091 and
2921049060 were configured lengthwise north to south with Parcel 2921049060 being
the western parcels and Parcel 2921049091 being the eastern parcel. However, since
the western parcel was identified as almost completely (>80%) dominated by existing
wetland the two parcels were re-configured to be lengthwise east to west within a
Boundary Line Adjustment (City #18-102925-SU) to allow for potential future homesite
development that would not require an unavoidable encroachment into the identified
onsite wetland.
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The project site was regularly managed as a garden and livestock pasture associated
with an adjacent homesite to the east for several years. Prior onsite actions had also
included the prior import and placement of fill particularly along the northern boundary of
the project site. The project site exhibited a gentle slope from the northeast to the
southwest. The project site has gone through City of Federal Way wetland peer review
(City #16-105771-AD) where it was verified that a City of Federal Way Category II
Wetland was present onsite (noted as Wetland A) with an associated standard 165-foot
buffer and a City of Federal Way Category I Wetland was present offsite to the west
(noted as Wetland B) with an associated standard 225-foot buffer. This offsite wetland
was associated with the Hylebos Wetlands Regional Park.
ENVIRONMENTALLY CRITICAL AREAS DETERMINATION
Onsite assessment completed during 2016/2017 – along with previously completed
assessments for a variety of adjacent parcels – identified a wetland generally dominating
the western portion of the project site. This wetland (Wetland A) had been managed and
manipulated by prior land use actions and was generally dominated by a mowed
emergent plant community. An addition wetland (Wetland B) was identified offsite to the
west and as associated with the Hylebos Wetlands Regional Park and the West Fork of
Hylebos Creek. The project site was not identified and has not been documented to
provide critical habitats for federally or state listed endangered, threatened, or sensitive
species.
WETLAND A: This wetland was located along the western boundary of the project site
and had been managed/modified by prior land use actions. The majority of this wetland
had been managed as pasture associated with a homesite located directly to the east of
the project site. A portion of this wetland located offsite to the south included an
excavated farm pond that exhibited ponding through the growing season and was used
by domestic ducks, geese, or chickens. Wetland A remained saturated to the surface
into the first part of the growing season.
Wetland A was rated pursuant to the Washington State Department of Ecology Wetland
Rating System for Western Washington (Hruby, 2014) and identified to exhibit a total
functions score of 20 points (6 habitat functions points). Wetland A was verified following
City of Federal Way peer review as meeting the City of Federal Way criteria for definition
as a Category II Wetland with a 165-foot standard buffer.
WETLAND B: This wetland was located offsite immediately to the west of the project
site and was associated with the West Fork of Hylebos Creek Corridor. This wetland
exhibited a forested plant community and was verified as meeting the criteria for
designation as a City of Federal Way Category I Wetland with a 225-foot standard buffer.
This wetland and stream corridor was also identified to meet the criteria for designation
as a City of Federal Way “Fish and wildlife habitat conservation areas” based on the
following:
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The West Fork of Hylebos Creek Corridor is associated with the West Fork of
Hylebos Creek – a Type F Water (fish bearing) stream.
The West Fork of Hylebos Creek Corridor – and in particular the West Fork of
Hylebos Creek – provides critical habitats for federally and state listed threatened
and sensitive species.
The West Fork of Hylebos Creek Corridor meets the criteria for designation as a
“State priority habitat” associated with state priority species.
The West Fork of Hylebos Creek Corridor provides locally important habitats and
is utilized by species of local importance.
REVISED WETLAND BUFFER REQUIREMENTS
In July 2019, the City of Federal Way revised Chapter 19.145 – Environmentally Critical
Areas. Within this revisions the standard buffer width requirements for wetlands were
modified to be more consistent with Washington Department of Ecology guidance.
WETLAND CATEGORY PRE-2019 REVISION
STANDARD BUFFER
POST-2019 REVISION
STANDARD BUFFER
A II (6 habitat) 165 feet 150 feet
B I (8 habitat) 225 feet 300 feet
The application of the post-2019 revision standard buffer for both Wetland A and
Wetland B does not reduction the character or extent of the project site that is either
covered by Wetland A or associated standard buffers for Wetland A or Wetland B. The
project site continued to be overlain by wetland or standard buffer area.
SELECTED DEVELOPMENT ACTION
The Selected Development Action for Parcel 2921049091 focuses on the development
of a new single-family homesite within the eastern portion of the project site consistent
with the City of Federal Way Comprehensive Plan and local zoning. As verified though
City of Federal Way wetland peer review the entire project site is dominated by a City of
Federal Way Category II Wetland and its associated 150-foot buffer (as revised July
2019), along with portions of the 300-foot buffer (as revised July 2019) associated with
the City of Federal Way Category I Wetland located directly to the west of the project
site.
The project site is 37,609 square feet in total size. To avoid encroachment into the
identified onsite wetland the selected location of the new single-family homesite shall be
within the southeastern corner of the project site and shall limit the total onsite disturbed
area to 7,215 square feet (<20% of the entire parcel). All of this disturbed area is
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presently defined as part of the standard buffer associated with Wetland A and Wetland
B. The remainder of the project site (>80% of the entire parcel) shall be planted with a
variety of native trees and shrubs to re-establish a viable onsite wetland and buffer plant
community.
Since single-family homesite development would require an unavoidable encroachment
into the standard buffer for Wetland A project permitting through the City of Federal Way
“reasonable use” provisions. As defined in FWRC 19.45.090(2) and application may
apply for a modification or waver of the provisions of Chapter 19.145 for proposed
projects on existing single-family residential lots using the City’s Process III. The overall
objective of the “reasonable use” provisions is to grant the ability to construct a single-
family homesite within a defined parcel consistent with the City’s Comprehensive Plan,
local zoning, and the character of the neighborhood.
MODIFICATION OF WETLAND BUFFER STANDARDS
The City of Federal Way has established mechanisms and provisions to allow for a
modification or waiver of the wetland buffers standard where the implementation of these
standards would deprive an applicant of all reasonable use of the subject property. The
applicant may apply for a modification or waiver of these provisions within a single-family
residential lot through the City’s Process III (19.145.090(2)).
The City of Federal Way may approve a modification or waiver of the buffer requirements
on a case-by-case basis based on the following criteria (19.145.090(3)):
(a) The application of the provisions of this chapter eliminates all reasonable use
of the subject property;
Discussion: As noted above, Parcel 2921049091 is completely overlapped
with either an onsite City of Federal Way Category II Wetland, the buffer
associated with this onsite Category II Wetland, or the buffer associated with
an offsite Category I Wetland. The implementation of the wetland and buffer
standards without modifications would eliminate all reasonable use of the
parcel.
(b) No feasible and reasonable on-site alternatives to the proposal are possible,
such as changes to site layout and/or reduction of impervious improvements;
Discussion: The project team has reviewed a number of onsite homesite
development options. However, the selected location for the new homesite
within the southeastern corner of the parcel provides that most reasonable
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location for the new homesite while also minimizing the required
encroachment into the identified standard buffer area. This selected location
also minimizes the length of the required assess corridor. The front of the
new homesite would also be directed eastward, away from the identified
wetlands and buffers.
(c) It is solely the implementation of this chapter, and not other factors, that
preclude all reasonable use of the subject property;
Discussion: As noted above, the selected location for the new homesite
within the southeastern corner of the parcel provides that most reasonable
location for the new homesite while also minimizing the required
encroachment into the identified standard buffer area. The project site has
been managed as pasture associated with an existing single-family homesite
offsite to the east for several years. The entire parcel is overlain with an
onsite wetland and associated buffers for the onsite and offsite wetlands.
There are no other restrictions that would preclude reasonable use of this
parcel as a single-family homesite.
(d) The applicant has in no way created or exacerbated the condition that forms
the limitation on the use of the subject property, nor in any way contributed to
such limitation; and
Discussion: The applicant is not responsible for the character or
configuration of the onsite and offsite wetlands are. The applicant has
undertaken the reconfiguration of the project site and the parcel to the south
through a Boundary Line Adjustment to avoid the identified onsite wetland and
to ensure that both parcels could be used as single-family homesites without
wetland encroachments.
(e) The waiver or modification will not lead to, create nor significantly increase
the risk of injury or death to any person or damage to improvements on or off
the subject property.
Discussion: As presently identified the requested modification or waiver of
the standard buffer requirements for the development of a new single-family
homesite would not significantly increase the risk of injury or death to any
person or damage to improvements on or off the subject property.
The requested waiver or modification of the buffer standards is the minimum necessary
to provide the applicant with some reasonable use of the subject property as outlined
above.
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MITIGATION SEQUENCING
The City of Federal Way has identified that a proposed applicant shall demonstrate that
all reasonable efforts have been examined with the intent to avoid and minimize impacts
to critical areas. When alteration to a critical area is proposed, such alteration shall be
avoided, minimized, or compensated in the following order of preference (19.145.130):
1. Avoiding the impact altogether by not taking a certain action or parts of an
action;
Discussion: The proposed project focuses on the development of a new single-
family homesite within the southeastern corner of the parcel. The homesite location
shall avoid encroachment into the identified onsite wetland. However, since the
entire parcel is overlain by an onsite wetland and wetland buffers associated with
both onsite and offsite wetlands the encroachment into the standard buffer area is
unavoidable.
2. Minimizing impacts by limiting the degree or magnitude of the action and its
implementation, by using appropriate technology, or by taking affirmative
steps, such as project redesign, relocation, or timing, to avoid or reduce
impacts;
Discussion: As noted above, present planning would require the unavoidable
encroachment into the standard buffer associated with the onsite and offsite
wetlands. The project team has reviewed alternatives which may reduce the
potential impacts to this wetland through project redesign. However, the present
location and character of the onsite and offsite wetlands coupled with the extent of
the associated buffers requires an unavoidable encroachment into the buffer. The
extent of the unavoidable encroachment has been minimized through the selected
location of the new homesite and the minimized size of the development envelope
(area of disturbance). Potential impacts have also been minimized through the use of
an assess driveway to be located along the eastern boundary of the parcel.
3. Rectifying the impact by repairing, rehabilitating, or restoring the affected
environment;
Discussion: The project site has been managed as pasture associated with the
existing homesite offsite to the east for several years. With the exception of the new
homesite envelope the project site would be restored through the planting of native
trees and shrubs common to the local area and selected to provide wildlife habitats
and water quality protections.
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4. Reducing or eliminating the impact over time by preservation and maintenance
operations;
Discussion: The identified onsite and offsite wetlands would not be adversely
impacted by homesite development and the retained onsite wetland and buffer would
be restored through the planting of native trees and shrubs common to the local area
and selected to provide wildlife habitats and water quality protections.
5. Compensating for the impact by replacing, enhancing, or providing substitute
resources or environments; and
Discussion: The identified onsite and offsite wetlands would not be adversely
impacted by homesite development and the retained onsite wetland and buffer
would be restored through the planting of native trees and shrubs common to the
local area and selected to provide wildlife habitats and water quality protections.
6. Monitoring the impact and the compensation project and taking appropriate
corrective measures.
Discussion: Following the implementation of the Wetland and Buffer Establishment
and Restoration Program as outlined below, a five-year monitoring and maintenance
shall be implemented to ensure the success of the program as measured by a set of
performance criteria generally associated with plant survival and plant community
coverage.
WETLAND AND BUFFER ESTABLISHMENT AND RESTORATION
PROGRAM
MITIGATION FOR UNAVOIDABLE IMPACTS
The proposed development of a new single-family homesite within Parcel 2921049091
shall avoid an adverse encroachment into the identified onsite or offsite wetlands.
However, the homesite development would require an unavoidable encroachment into
the identified onsite buffer area. As compensation for this unavoidable encroachment
the retained onsite wetland and buffer would be restored through the planting of native
trees and shrubs common to the local area and selected to provide wildlife habitats and
water quality protections.
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MITIGATION PLANNING
To ensure that unavoidable buffer encroachment does not result in adverse
environmental impacts the project team reviewed a range of permittee sponsored
compensatory mitigation alternatives. The mitigation plan outlined below has been
prepared consistent with the provisions of the Wetland Mitigation in Washington State
Part 1: Agency Policies and Guidance (WDOE 2006), and Wetland Mitigation in
Washington State Part 2: Developing Mitigation Plans (WDOE 2006). Both of these
documents are defined as “best available science” for the review and development of
compensatory mitigation associated with project related impacts to wetlands. The
mitigation plan also incorporates the Standards outlined in the City of Federal Way
Chapter 19.145.
The staff of Habitat Technologies has a wide range of professional experience and
hands-on creation of compensatory mitigation program planning, mitigation program
implementation, mitigation program monitoring, and mitigation program permitting over
the past several decades within Washington, Oregon, and Idaho. Habitat Technologies
has also been involved with the development of compensatory mitigation program design
and implementation requirements at the resource agency level (federal, state, local,
tribal) and has provided a wide range of professional peer review of environmental
planning and mitigation implementation documents.
MITIGATION PROGRAM BENEFITS
The overall goal of the Wetland and Buffer Establishment and Restoration Program is to
restore a viable native plant community within the onsite retained wetland and buffer
areas. The establishment of the viable native plant community would provide enhanced
structural stability; would provide enhanced light, dust, and noise screening to protect
onsite and offsite aquatic habitats; would provide enhanced aquatic and terrestrial
habitats; would provide enhanced stormwater runoff quality protections; would provide
enhanced detrital support for the aquatic/terrestrial food-web; and would provide
enhanced protection from potential human encroachments. The identified onsite critical
areas (wetland and buffer) would also be placed within protective tracts or defined by
protective easements for long-term protection.
MITIGATION LIKELIHOOD OF SUCCESS
As defined by existing site characteristics and a review of similarly completed mitigation
programs, it is the professional opinion of Habitat Technologies that the Wetland and
Buffer Establishment and Restoration Program outlined below would provide short-term
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and long-term protection and restoration of onsite and offsite aquatic resources and has
been prepared to be consistent with the Department of Ecology Wetland Mitigation in
Washington State – Part 2 Developing Mitigation Plans (WDOE 2006) and the
Performance Standards outlined in the Standards outlined in the City of Federal Way
Chapter 19.145. (mitigation requirements). This program would establish a viable plant
community composed of a variety of native species within an area that had been
impacted by prior land use actions. In addition, a set of performance standards and
maintenance actions have been defined to ensure the overall success of this Wetland
and Buffer Establishment and Restoration Program.
DESCRIPTION OF THE MITIGATION PROGRAM
The selected site development action would not require the placement of fill within the
identified onsite or offsite wetland. However, the selected site development action
would require an encroachment into the associated buffer in the southeastern corner of
the project site. To compensation for the required reduction of the associated buffer
following enhancement actions shall be undertaken (Attachment One).
1. The retained onsite wetland and associated retained buffer areas shall be
initially cleared of any existing garbage and invasive vegetation. Beneficial
native trees and shrubs shall be identified and flagged by the project biologist
and shall not be removed. The removal of the invasive shrubs and assorted
debris shall not adversely impact the soil profile or offsite aquatic features. In
addition, the existing site contours not within the proposed homesite
development envelop shall not be modified.
2. The proposed homesite development envelop shall be clearly identified and
then protective silt fencing shall be installed along this envelope boundary.
3. The established onsite wetland and buffer areas shall be planted with a variety
of native trees and shrubs common to the local area. These activities shall
create a plant community that protect and enhance the functions and value of
the onsite and offsite wetland, provides wildlife habitats, and protects local
water quality.
4. All onsite activities shall be monitored by the project biologist
or landscape architect. Final plant placements shall be approved by the
project biologist prior to installation. Following the completion of onsite
planting activities an Implementation Report shall be prepared and submitted
to the City of Federal Way.
5. Upon the City’s acceptance of the Implementation Report a five-year
monitoring program shall be undertaken following the successful completion
of the initial planting efforts to ensure the success of the Wetland and Buffer
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Establishment and Restoration Program. A series of financial guarantees
would be provided to the City of Federal Way (if required) also be
implemented to ensure that the proposed work is completed and is
successful.
6. Protective silt fencing and orange construction fencing shall be installed along
the outer boundary of the established development envelop. This fencing
shall be maintained serviceable throughout the construction of the proposed
single-family homesite.
7. A protective spilt-rail fence (or other fence approved by the City) shall be
placed along the defined outer buffer boundary adjacent to the new homesite.
This fence shall be posted with a minimum of five (5) City of Federal Way
buffer boundary signs.
8. The established buffer shall be memorialized with a recorded “notice on title”
or other protective means.
GOAL AND OBJECTIVE OF THE ENHANCEMENT PROGRAM
The GOAL of the Wetland and Buffer Establishment and Restoration Program is to
protect and enhance the functional values of the identified onsite and offsite wetlands.
To achieve the defined GOAL, the following OBJECTIVES and PERFORMANCE
CRITERIA have been defined:
Objective A. The established onsite wetland and buffer areas shall exhibit a
scrub/shrub and sapling tree vegetation class within five years following initial planting.
Performance Criterion #A1: As defined by plant counts 100% of the trees and
shrubs initially planted within the onsite wetland and buffer shall exhibit
survival through the end of the first growing season following planting.
Performance Criterion #A2: As defined by plant counts 80% of the trees and
shrubs initially planted within the onsite wetland and buffer shall exhibit
survival through the end of the second and third growing seasons following
planting.
Performance Criterion #A3: As defined by onsite monitoring within the onsite
wetland and buffer areas the scrub/shrub and sapling vegetation class will
exhibit the following minimum aerial coverage during the fall monitoring
periods during the five years following initial planting. For purposes of the
aerial coverage determination the scrub/shrub and sapling vegetation class
will include both planted and desirable volunteer species.
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MONITORING YEAR MINIMUM AERIAL COVERAGE
End of monitoring year one 5%
End of monitoring year two 10%
End of monitoring year three 20%
End of monitoring year five 30%
Performance Criterion #A4: As defined by aerial coverage, invasive non-native
species shall not exceed 10% at the end of the second, third, fourth, and fifth
growing seasons following planting.
Performance Criterion #A5: As defined by onsite monitoring knotweed
(Polygonum cuspidatum) shall not be present within the wetland or buffer
plant community at the end of the second, third, fourth, and fifth growing
seasons following planting.
SELECTED PLANT COMMUNITIES
The plants selected for the restored onsite wetland and buffer areas shall be obtained as
nursery stock. These selected species are native and commonly occur in the local area.
The plant species prescribed are selected to increase plant diversity, to match present
offsite communities, to increase available wildlife habitats, and to enhance the aquatic
environment.
NUMBER COMMON NAME (ID) - SCIENTIFIC NAME SIZE
5 Big leaf maple (ACM) - Acer macrophyllum 2 gal
11 Western paper birch (BEP) - Betula papyrifera 2 gal
52 Oregon ash (FRL) - Fraxinus latifolia 2 gal
11 Sitka spruce (PIS) - Picea sitchensis 2 gal
5 Bitter cherry (PRE) - Prunus emarginata 2 gal
33 Douglas fir (PSM) - Pseudotsuga menziesii 2 gal
52 Western crabapple (PYF) - Pyrus fusca 2 gal
43 Western red cedar (THP) - Thuja plicata 2 gal
212 TOTAL TREES
11 Vine maple (ACC) - Acer circinatum 1 gal
33 Tall Oregon grape (BEA) - Berberis aquifolium 1 gal
33 Hazelnut (COC) - Corylus cornuta 1 gal
41 Red osier dogwood (COS) - Cornus stolonifera 1 gal
11 Oceanspray (HOD) - Holodiscus discolor 1 gal
41 Black twinberry (LOI) - Lonicera involucrata 1 gal
41 Pacific ninebark (PHC) - Physocarpus capitatus 1 gal
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11 Red flowering currant (RIS) - Ribes sanguineum 1 gal
33 Wild rose (ROG) - Rosa gymnocarpa 1 gal
33 Nootka rose (RON) - Rosa nutkana 1 gal
21 Snowberry (SYA) - Symphoricarpus albus 1 gal
33 Evergreen huckleberry (VAO) - Vaccinium ovatum 1 gal
41 Sitka willow (SAS) - Salix sitchensis 1 gal
41 Pacific willow (SAL) - Salix lasiandra 1 gal
424 TOTAL SHRUBS
IMPLEMENTATION INSPECTION
Essential to the success of the Wetland and Buffer Establishment and Restoration
Program is the accurate inspection of onsite activities immediately prior to and during
the initial phases. These activities include pre-implementation site inspection, onsite
inspection and technical direction during invasive vegetation/debris removal and
planting activities, and post-planting site inspection and evaluation.
The pre-implementation site inspection allows the project team and the project
biologist/landscape architect to evaluate and, if necessary, undertake minor
adjustments in the onsite implementation steps. These steps include analysis of project
site elevation features, project sequencing and timing, unforeseen required minor
modifications to the original establishment plan, and the establishment of environmental
protections (silt fences, etc.) required during implementation. Onsite technical
inspection during implementation and planting activities shall be implemented by the
project biologist/landscape architect. The project biologist/landscape architect shall
perform implementation oversight and address minor unforeseen implementation
difficulties to assure that the intent of the enhancement program is met. Final plant
placements shall be approved by the project biologist/landscape architect prior to
installation.
The project biologist/landscape architect shall be responsible for ensuring that the
species and sizes of native plants selected and noted within the final planting plan are
utilized during implementation. If selected native species become unavailable, the
project biologist/landscape architect shall consult with the City for substitute plant
species to assure that the intent of the buffer enhancement program is met. Post-
implementation site inspection/ evaluation shall include the preparation of an
Implementation Report which shall be submitted to the City.
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IMPLEMENTATION SCHEDULE
PROJECT TASK TASK SCHEDULE
Onsite pre-implementation project meeting Completed by Sept. 15, 202x
Placement of protective silt fencing, final marking of
desirable plants to be retained, and final marking
and identification of work area.
Completed by Sept. 30, 202x
Removal of invasive species and debris. Completed by Oct. 15, 202x
Planting of wetland and buffer area. Completed by Nov. 15, 202x
Placement of protective fencing and attachment of
buffer signs.
Completed by Nov. 25, 202x
Implementation report to City Completed by Dec. 5, 202x
202x represents the year of implementation. Should this implementation
schedule not follow the time period noted above the project team shall coordinate
a revised schedule with the City.
PROJECT MONITORING
Following the successful completion of the initial implementation elements Wetland and
Buffer Establishment and Restoration Program and the acceptance of the
Implementation Report by the City of Federal Way a five-year monitoring and evaluation
program shall be undertaken. The purpose of this program is to ensure the success of
the selected Wetland and Buffer Establishment and Restoration Program as measured
by an established set of performance criteria. This monitoring shall also provide
valuable information on the effectiveness of Wetland and Buffer Establishment and
Restoration Program procedures.
STANDARDS OF SUCCESS
A minimum of five (5) - 15-foot radius permanent vegetation sampling plots shall be
established within the restored onsite wetland and buffer. Observations and
measurements shall be recorded for all plant species in order of dominance based on
the relative percent cover for each species within the various vegetation strata.
The evaluation of the success of the Wetland and Buffer Establishment and Restoration
Program shall be based on the selected survival rates and coverage for trees and
shrubs. These defined performance criteria shall be applied at the times of yearly
monitoring. An estimated of “percent aerial cover” and the percent survival rate shall be
based on combined counts of existing, volunteer plants, and planted species during
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vegetation monitoring. Sample location shall be shown on the design and the
Implementation Report, and shall correspond to identified photopoints. Trees and
shrubs shall be visually evaluated to determine the rate of survivorship, health, and
vigor of each plant. The categories to be used shall include live, stressed, tip die-back,
basal sprouts, not found, apparently dead, and dead.
1. As a part of each monitoring period the project biologist/landscape architect shall
count the number of live plants which were planted within the representative
sample plots. Plants shall be identified to species and observations of general
plant condition (i.e., plant health, amount of new growth) are to be recorded for
each plant.
2. As a part of each monitoring period the project biologist/landscape architect shall
determine percent coverage of vegetation for emergent species and for the
scrub/shrub and sapling tree species within each representative sample plot.
3. At identified sample plots the project biologist/landscape architect shall count the
number of undesirable invasive plants and estimate the aerial coverage (as if the
observer were looking straight down from above) of these invasive plants within
each representative sample plot. Undesirable plants include blackberries, Scot’s
broom, tansy ragwort, reed canarygrass, and plants listed in the Washington
State Noxious Weed List.
4. At identified sample plots the project biologist/landscape architect shall count the
number of desirable "volunteer" plants and estimate the aerial coverage of these
plants within each representative sample plot.
5. The project biologist/landscape architect shall take photographs that show the
entire enhanced buffer area. During the five year monitoring period the photos
shall be taken in the same direction and at the same location to provide a series
of photos. These photos shall show plant growth, plant species, and plant
coverage.
6. Upon the completion of each annual monitoring period the project
biologist/landscape architect shall prepare a report defining methods,
observations, and results along with the date the observations were completed.
Each report shall be provided to the City.
MONITORING
YEAR
PLANT COMMUNITY MONITORING SUBMITTAL OF
MONITORING REPORT
YEAR-1 On or about April 15, 202x+1
On or about Sept. 15, 202x+1 Report due Oct. 7, 202x+1
YEAR-2 On or about April 15, 202x+2
On or about Sept. 15, 202x+2 Report due Oct. 7, 202x+2
YEAR-3 On or about April 15, 202x+3
On or about Sept. 15, 202x+3 Report due Oct. 7, 202x+3
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YEAR-4 On or about Sept. 15, 202x+4 Report due Oct. 7, 202x+4
YEAR-5 On or about Sept. 15, 202x+5 Report due Oct. 7, 202x+5
Year 202x represents the initial year of implementation
VEGETATION MAINTENANCE PLAN
Maintenance of the onsite wetland and buffer plant communities may be required to
assure the long-term health and welfare of the onsite and offsite wetland and buffer
environmental functions. Such maintenance shall be identified during the monitoring
period and undertaken only following discussion and coordination with the City. The
overall objective is to establish undisturbed plant communities that do not require
maintenance. Activities may include, but are not limited to, the removal of invasive non-
native vegetation and the irrigation of selected areas. Established maintenance
activities include the removal of any trash within the onsite wetland and buffer.
REMOVAL OF INVASIVE NON-NATIVE VEGETATION
As a contingency, should the removal of invasive non-native vegetation become
necessary, the project proponent shall contact the City to establish and define specific
actions to be taken. Resultant contingency plan activities shall be implemented when
the ongoing vegetation monitoring program indicates that plants listed in the
Washington State Noxious Weed List, blackberries, reed canarygrass, or Scot's broom
are becoming dominant in the community or exceed 10% of the aerial coverage of the
planting areas.
CONTINGENCY PLAN
As a contingency, should the Wetland and Buffer Establishment and Restoration
Program fail to meet the performance criteria, the project proponent shall undertake the
required remedial actions. Where plant survival is the failing component, the project
proponent shall replant and ensure the success of this second, supplemental planting
which shall be held to the same standard of success as measured by performance
criteria and monitoring processes.
Where non-native, invasive vegetation exceeds 10% aerial coverage the project
proponent shall undertake removal actions. Such removal actions shall be completed
using hand tools or pulling the plants by hand to remove the invasive vegetation without
disrupting the soil profile. All cut or pulled vegetation shall be removed from the stream
corridor area and disposed in an approved location. Herbicides shall only be used
following approval by the City. All herbicide application shall be completed by a
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licensed professional. Should additional remedial actions be required, the project
proponent shall meet with the City to establish and define actions to be taken to meet
the desired goal of this Wetland and Buffer Establishment and Restoration Program .
TEMPORARY IRRIGATION
The project proponent shall ensure that a minimum of one (1) inch of water is
supplied each week to the buffer area between May 15th and October 15th for a least
the first two years following initial planting. The calculated amount of required water
shall include both natural rainfall and temporary irrigation. The need for additional years
of irrigation shall be determined based on site conditions and overall plant survival. The
amount of water supplied to the onsite wetland and buffer areas shall be increased at
the direction of the City or if onsite monitoring defines such a need. A temporary
irrigation system shall be installed during the initial planting or during the spring of the
first monitoring period. The temporary irrigation system shall utilize above ground
sprinklers which allow for suitable overlap to ensure that no area is missed. As an
alternative, a drip system may be installed that allows for a minimum of two drip outlets
for each plant. The final selected irrigation system shall be detailed within the
Implementation Report following the initial planting of the onsite wetland and buffer
areas.
PLANTING NOTES
All plant materials utilized within the Wetland and Buffer Establishment and Restoration
Program shall be native to the Puget Sound Region. The onsite biologist/landscape
architect shall inspect plant materials to assure the appropriate plant schedule and plant
characteristics are met. The project proponent shall warrant that all plants shall remain
alive and healthy for a period of one year following completion of planting activities. The
project proponent shall replace all dead and unhealthy plants with plants of the same
specifications as directed by the project biologist/landscape architect.
FINANCIAL GUARANTEE
Financial guarantees shall be provided for this project and shall be defined in two parts.
Part One (Implementation Guarantee) shall be associated with the initial onsite
compensation elements of the proposed plan. Part Two (Performance Guarantee) shall
be associated with the monitoring and reporting elements of the proposed
compensation plan. These guarantees shall be held by the City and be equal to 120%
of the actual estimated costs for identified activities. This increased percentage shall
allow for adequate funds to be available as a contingency should actions be required to
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meet the goals of these plans. The Implementation Guarantee shall be deemed to be
released by the City upon the successful completion of the initial onsite compensation
elements and the acceptance by the City. The Performance Guarantee shall be
deemed to be released upon meeting the established threshold criteria and acceptance
by the City of the required reporting documents.
Implementation Guarantee
TASK ASSOCIATED COST
Silt fencing and installation $ 600.00
Removal of debris and invasive vegetation (5 hrs 4 person crew at
$160/hr.)
$ 500.00
212 trees and installation ($25.00/each) $ 5,300.00
424 shrubs and installation ($12.50/each) $ 5,300.00
Onsite biologist/landscape architect (16 hours at $150/hr) $ 2,400.00
Installation of a temporary irrigation system $ 1,500.00
Split-rail or alternative protective fence and buffer signs $ 1,700.00
Sample plot establishment and production of Implementation Report
(12 hrs at $150/hr).
$ 1,800.00
SUB-TOTAL $19,100.00
Required 20% contingency $ 3,820.00
IMPLEMENTATION GUARANTEE TOTAL $ 22,920.00
Performance Guarantee
TASK ASSOCIATED COST
Year-One onsite monitoring with expenses
Two times for plants (8 hrs at $150/hr)
Annual report with photos (2 hrs at $150/hr)
$ 1,500.00
Year-Two onsite monitoring with expenses
Two times for plants (8 hrs at $150/hr)
Annual report with photos (2 hrs at $150/hr)
$ 1,500.00
Year-Three onsite monitoring with expenses
Two times for plants (8 hrs at $150/hr)
Annual report with photos (2 hrs at $150/hr)
$ 1,500.00
Year-Four onsite monitoring with expenses
One time for plants (6 hrs at $170/hr)
Annual report with photos (2 hrs at $170/hr)
$ 1,360.00
Year-Five onsite monitoring with expenses
One time for plants (6 hrs at $170/hr)
Annual report with photos (2 hrs at $170/hr)
$ 1,360.00
Water for temporary irrigation $ 800.00/year $ 1,600.00
Invasive vegetation management
Three times first year (late Feb, late March, mid May)
Two times second and third years (mid March, mid May)
$ 4,000.00
SUB-TOTAL $12,820.00
Required 20% contingency $ 2,564.00
PERFORMANCE GUARANTEE TOTAL $ 15,384.00
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STANDARD OF CARE
This document has been completed by Habitat Technologies for use by Mr. Pavlo
Sokalshyy. Prior to extensive site planning this document should be reviewed and
verified by City of Federal Way. Habitat Technologies has provided professional
services that are in accordance with the degree of care and skill generally accepted in
the nature of the work accomplished. No other warranties are expressed or implied.
Habitat Technologies is not responsible for design costs incurred before this document is
approved by the appropriate resource and permitting agencies.
Bryan W. Peck
Senior Wetland Biologist
Thomas D. Deming, SPWS
Habitat Technologies
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FIGURES
Date: 6/7/2016 Notes:
The information included on this map has been compiled by King County staff from a variety of sources and issubject to change without notice. King County makes no representations or warranties, express or implied,as to accuracy, completeness, timeliness, or rights to the use of such information. This document is not intendedfor use as a survey product. King County shall not be liable for any general, special, indirect, incidental, orconsequential damages including, but not limited to, lost revenues or lost profits resulting from the use or misuseof the information contained on this map. Any sale of this map or information on this map is prohibited except bywritten permission of King County.
Figure 1 Site Vicinity
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ATTACHMENT ONE – Wetland and Buffer Planting Program
SPLIT RAIL FENCE ANDSIGN, SEE SHEET L2FOR SIGN DETAIL14,944 SFWETLAND AREA15,722 SF WETLANDBUFFER AREAFRLPYFSALSPYFPYFPYFPYFPYFPYFPYFPYFPYFPYFPYFPYFPYFPYFPYFPYFPYFPYFPYFPYFPYFPYFPYFPYFPYFPYFPYFPYFPYFPYFPYFPYFPYFPYFPYFPYFPYFPYFPYFPYFPYFPYFPYFPYFPYFPYFPYFPYFPYFPYFPYFFRLFRLFRLFRLFRLFRLFRLFRLFRLFRLFRLFRLFRLFRLFRLFRLFRLFRLFRLFRLFRLFRLFRLFRLFRLFRLFRLFRLFRLFRLFRLFRLFRLFRLFRLFRLFRLFRLFRLFRLFRLFRLFRLFRLFRLFRLFRLFRLFRLFRLFRLSALSALSALSALSALSALSALSALSALSALSALSALSALSALSALSALSALSALSALSALSALSALSALSALSALSALSALSALSALSALSALSALSALSALSALSALSALSALSALSALSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSPSMTHPACMBEPPISPREPSMPSMPSMPSMPSMPSMPSMPSMPSMPSMPSMPSMPSMPSMPSMPSMPSMPSMPSMPSMPSMPSMPSMPSMPSMPSMPSMPSMPSMPSMPSMPSMTHPTHPTHPTHPTHPTHPTHPTHPTHPTHPTHPTHPTHPTHPTHPTHPTHPTHPTHPTHPTHPTHPTHPTHPTHPTHPTHPTHPTHPTHPTHPTHPTHPTHPTHPTHPTHPTHPTHPTHPTHPTHPBEPBEPBEPBEPBEPBEPBEPBEPBEPBEPACMACMACMACMPISPISPISPISPISPISPISPISPISPISPREPREPREPREKnow what'sbelow.before you dig.CallRX-REFS:CIVILPLOT SCALE:1:1DRAWING SCALES:1:10DRAWING CONTENTSBUFFERENHANCEMENTPLAN NORTHDRAWING NO.:L11 OF 2www.naturebydesigninc.com1320 Alameda Avenue, Suite B, Fircrest, WA 98466253.460.6067AGENCYREVIEWMAY 20, 2021PROJECT NO:2154FILE NAME:2154LSADRAWN BY:JWSCHECKED BY:KLOORIG. SHEET SIZE 22X34WETLAND PLANTING PLAN NORTHN01010205
Know what'sbelow.before you dig.CallRX-REFS:CIVILPLOT SCALE:1:1DRAWING SCALES:NTSDRAWING CONTENTSBUFFERENHANCEMENTNOTES & DETAILSDRAWING NO.:L22 OF 2 2 X BALL DIA.NOTES:1. PLANTING BACKFILL:50% EXISTING SOIL, 50% 1/4 MINUSCOMPOST, MIXED THOROUGHLY2. FOR MULCH TYPE SEELANDSCAPE NOTES.3. IF B&B AND BURLAP ISGREEN IN COLOR. REMOVE COMPLETELYBEFORE INSTALLING PLANT.SHRUB PLANTING DETAILNo ScaleWHEN PLANTING ON A STEEP SLOPE,MAINTAIN PLANT IN VERTICALPOSITION WITHIN PLANTING PIT.MAKE A RIM ON DOWNSLOPE SIDE OFPLANT PIT TO RETAIN WATER.MULCH TO DEPTHSPECIFIED IN NOTESFORM CONTINUOUS RIMBACKFILL W/ BACKFILL MIXTURE ASINDICATED IN NOTE IN 9" LAYERS.WATER AND TAMP TO REMOVE AIR POCKETSREMOVE ALL WIRE WRAPAND PLASTIC WRAP.REMOVE BURLAP FROMTOP OF ROOT BALLMULCH & TOPSOIL OR AMENDED BASE,REFER TO LANDSCAPE NOTES FOR DEPTH34"6" FROM BASEOF BRANCHING1.5"12" 2 X BALL DIA.ENSURE PROPER SUBBASEEXISTS; CLEAR ALLCONCRETE AND OTHERDEBRIS FROM PLANTERSPRIOR TO BACKFILLINGAND PLANTINGNOTES:1. PLANTING BACKFILL:50% EXISTING SOIL, 50% 1/4 MINUSCOMPOST, MIXED THOROUGHLY2. FOR MULCH TYPE SEELANDSCAPE NOTES.3. IF B&B AND BURLAP ISGREEN IN COLOR. REMOVE COMPLETELYBEFORE INSTALLING PLANT.DECIDUOUS TREE PLANTING &STAKING DETAILNo ScaleWHEN PLANTING ON STEEP SLOPE,MAINTAIN PLANT IN VERTICALPOSITION WITHIN PLANTING PIT.MAKE A RIM ON DOWNSLOPE SIDE OFPLANT PIT TO RETAIN WATER,DECIDUOUS TREEINTERLOCKING PLASTIC TREE TIESOR AGENCY APPROVED EQUAL(2) 2x2 OR 2" DIA. WOOD STAKESDRIVEN INTO SUBGRADE OR SIM.METHODFORM SAUCER WITHCONTINUOUS RIMTOP SOIL OR AMENDED BASE, REFERTO LANDSCAPE NOTES FOR DEPTHWHEN B&B REMOVE ALLWIRE AND ROLL BURLAPOFF TOP OF ROOTBALLSCARIFY SIDES OF PIT,BACKFILL WITH SOILMIXTURE INDICATED IN THE NOTES IN9" LAYERS. WATER AND TAMP TOREMOVE AIR POCKETS3" MULCHGENERAL LANDSCAPE NOTES1. Contractor is responsible for obtaining all necessary permits from the appropriate agency prior to commencing work. Contractor shallcontact Line Locators (811) a min. of 48 hours prior to any digging or trenching. If there are any discrepancies with existing lines andlandscaping, it is the contractor's responsibility to contact the landscape architect and request a site visit to address the conflicts.Contractor shall comply and conform to any and all local and state codes for work, schedules and any other project relatedrequirements.2. Contractor shall coordinate directly with the landscape architect for all landscape related issues, concerns, inspections and approvals.Contractor shall provide the landscape architect with a written request for a site visit to address any related items.3. Scope of work shall include any and all specified and unspecified but related incidental work to achieve the design indicated on thelandscape plans. All labor, materials, subcontractors, equipment, and related incidental items shall be supplied and installed to achievea complete project, unless directed otherwise by the general contractor or landscape architect.4. Contractor to verify all sub grades are set below required amendments to insure the finished grade will match what is intended by civilor drainage design. All sub grades and finished or final grades shall be graded to drain to the designed drainage system with positivedrainage away from all structures.5. Grade Preparation:a. Slopes used for grass plantings or turf shall be less than 3:1 or 33 percent. Otherwise plantings should not require mechanized mowingequipment.Soil Preparation.a. Where soils are compacted, planting beds should be deep tilled to a depth of at least 12 inches. Soils shall be enhanced through theaddition of the following materials: bark and forestry by-products, organic matter such as composted yard waste, organics and otheramendments as needed through a soils test. Where Pit Planting, see planting detail for planting ring sizes and depths. Scarify theedges of planting pits to encourage root expansion.b. On project sites where topsoil is limited or nonexistent, a minimum depth of 6 (six) inches of sandy loam topsoil should be tilled intothe soil to a depth of 12 inches through all planting areas with compacted soils.c. For all newly planted areas, three cubic yards of composted organic matter per 1,000 square feet of landscape area should beadded to a depth of four inches to the top of the soil and Tilled in.d. Seeded areas shall be fine graded and rolled. New Soil depths in lawn areas shall be 4 Inches.2. Mulching of Newly Planted or Replanted Areas.a. Mulches must be applied to the following depths: a minimum 3 (three) inches over bare soil, and two inches where plant materialswill cover.b. Mulches must include organic materials, such as wood chips and shredded bark.c. Nonporous materials, such as plastic sheeting, shall not be used in any area of the landscape because of down-slope erosion andpotential soil contamination from herbicide washing.d. Mulch should be applied regularly to and maintained in all planting areas to assist soils in retaining moisture, reducing weed growth,and minimizing erosion.7. Contractor shall field layout all plant material and contact the landscape architect for a site visit to approve the layout. Any fieldmodifications shall be done by the landscape architect prior to planting.8. Contractor shall immediately notify the landscape architect of any poor drainage condition in landscape areas. No standing water shallbe permitted in any landscape areas - either on the surface or below the topsoil. The landscape architect shall coordinate the drainagesolution with the general contractor and civil engineer. Once the concerns have been remedied planting shall commence.9. All groundcover to be planted in a triangular spacing formation, equal in all directions to the centers of the groundcovers in distancesindicated in the legend. Contractor shall verify all quantities of groundcovers by area calculations and spacing requirements.10. Landscaping is to be per plan. Plant substitutions due to availability or otherwise will be allowed only with landscape architect, ownerand agency approval. Any substitutions will be with material of similar size, growth characteristics, and quality.11. All trees must be staked as necessary so as to maintain material in a healthy, vigorous growing condition.12. Landscaping shall be installed in a professional workmanlike manner that is consistent and accepted throughout the industry. Alllandscape and irrigation work shall be performed by experienced persons familiar with scope of project.13. All landscape material and labor is to be guaranteed for a period of one full year from the time of completion.14. When planting 'Balled and Burlapped' product, remove all burlap, string & wire from any B&B plant material, cut and remove jutestrings. Gently place in tact Rootbal into planting pit. If rootball breaks or is not solid - the plant is unacceptable and shall be replaced.15.. Street trees shall be high branching with canopy that starts at least 6' above finish grade.16. All plant I.D. tags are to remain on the plant material until final inspection has been completed. Once approved all plant I.D. tags shallbe removed and discarded appropriately.17. Trees shall be cared for in accordance with the American National Standards Institute (ANSI) standard practices for trees, shrubs andother woody plant maintenance (ANSI 300) in order to allow them to reach there mature height and form.18.. Pruning of street trees shall be performed per the ANSI 300 standards so as to maintain the natural form of the tree, encouragevigorous growth to a mature spread and height, and avoid weakening the tree to create a hazard. Street trees shall not be toppedpollarded, or otherwise pruned in a manner contrary to these goals, unless there is no practicable alternative that would preserveessential utility services.19. Plant material selected is drought tolerant or native species. The project proponent shall be responsible for maintaining and wateringall plant material throughout the first growing season and in times of drought. Temporary irrigation shall be provided via TREEGATOR BAGS attached to each tree. A temporary method for watering the planting areas shall consist of minimally a hose bibaccess to the area and drip hoses on a battery operated hose bib timer. For planting warranties from contractor to be ensured,contractor shall be responsible for watering the plant material and keeping the mulch ring weed free for the first growing season aspart of the contract.It is recommended to install the landscaping in the Spring (February - April) or Fall (October - December)when dormant but before hardfreeze.TEMPORARY IRRIGATIONThe project proponent shall ensure that a minimum of one (1) inch of water is supplied each week to the restoration area betweenMay 1 and October 15 for a least the first two years following initial planting. The calculated amount of required water shall include bothnatural rainfall and temporary irrigation.www.naturebydesigninc.com1320 Alameda Avenue, Suite B, Fircrest, WA 98466253.460.6067AGENCYREVIEWMAY 20, 2021PROJECT NO:2154FILE NAME:2154LSADRAWN BY:JWSCHECKED BY:KLOORIG. SHEET SIZE 22X34WETLAND PLANT LEGEND NORTHTREESSYMBOLQTYDESCRIPTIONSIZE52Fraxinus latifolia Oregon Ash2 Gal. Min.52Pyrus fusca Western Crabapple2 Gal. Min.SHRUBSSYMBOLQTYDESCRIPTIONSIZE41Cornus stolonifera Red Osier Dogwood1 Gal. Min.41Physocarpus capitatus Ninebark1 Gal. Min.41Salix lasandra Pacific Willow1 Gal. Min.41Salix stichensis Sitka Willow1 Gal. Min.41Lonicera involucrata Black Twinberry1 Gal. Min.FRLPYFSALSBUFFER PLANT LEGEND NORTHTREESSYMBOLQTYDESCRIPTIONSIZE33Pseudotsuga menziesii Douglas Fir2 Gal. Min.43Thuja plicata Western Red Cedar2 Gal. Min.11Betula papyrifera Western Paper Birch2 Gal. Min.5Acer macrophylum Big Leaf Maple2 Gal. Min.11Picea sitchensis Sitka Spruce2 Gal. Min.5Prunus emargenata Bitter Cherry2 Gal. Min.SHRUBSSYMBOLQTYDESCRIPTIONSIZE11Acer circinatum Vine Maple1 Gal. Min.33Mahonia aquifolium Tall Oregon Grape1 Gal. Min.33Corylus cornuta Hazlenut1 Gal. Min.11Holodiscus discolor Ocean Spray1 Gal. Min.33Rosa gymnocarpa Wild Rose1 Gal. Min.33Rosa nutkana Nootka Rose1 Gal. Min.11Ribes sanguineum Flowering Red Currant1 Gal. Min.21Symphoricarpos albus Snowberry1 Gal. Min.33Vaccinium ovatum Evergreen Huckleberry1 Gal. Min.PSMTHPBEPACMPISPRE