HomeMy WebLinkAboutRS_Wetland_Assesment_v2_3-14-19WETLAND AND FISH AND WILDLIFE HABITAT
ASSESSMENT AND RESTORATION PLAN
EAST VALLEY ROAD
OCTOBER 2017
WETLAND AND FISH AND WILDLIFE HABITAT
ASSESSMENT AND RESTORATION PLAN
EAST VALLEY ROAD
REVISED OCTOBER 27, 2017
PROJECT LOCATION
2960 EAST VALLEY ROAD
RENTON, WA 98057
PREPARED FOR
LATITUDE DEVELOPMENT
1801 WEST VALLEY HIGHWAY NORTH, SUITE 101
AUBURN, WA 98001
PREPARED BY
SOUNDVIEW CONSULTANTS LLC
2907 HARBORVIEW DRIVE, SUITE D
GIG HARBOR, WA 98335
(253) 514-8952
Soundview Consultants LLC i Revised October 27, 2017
1413.0004 East Valley Road – Wetland and Fish and Wildlife Habitat Assessment
Executive Summary
Soundview Consultants LLC (SVC) has been assisting Latitude Development (Applicant) with
wetland delineation and fish and wildlife habitat assessment efforts for a proposed 35,000 square foot
building material retail center at 2960 East Valley Road in Renton, Washington. The subject property
is composed of four parcels and is currently developed with a lumber distribution facility, a car storage
and wrecking yard, and associated structures for a towing company. The subject property is situated
in the Southwest ¼ of the Northwest ¼ of Section 30, Township 23 N, Range 05 E, W.M. (King
County Tax Parcel Numbers 3023059096, 3023059098, 3023059099, and 3023059091).
SVC investigated the subject property for the presence of potentially-regulated wetlands, waterbodies,
fish and wildlife habitat, and priority species in winter of 2016. The site investigations identified one
wetland (Wetland A) located on the eastern border of the subject property and one non-regulated
drainage ditch (Drainage Z) located on the southern property boundary. Wetland A was classified as
a Category III wetland with a habitat score of 4 and requiring a standard 75-foot buffer which can be
reduced by 25 percent to 56 feet through enhancement measures. SVC identified Drainage Z as an
intentionally created feature and is non-regulated per Renton Municipal Code (RMC) 4-3-050.G.7.b.
After review, the City of Renton is classifying Wetland A as a Category III wetland with a habitat score
of 5 habitat points and Drainage Z as the same regulated wetland as Wetland A. The City of Renton
recommends a 75-foot standard buffer which can be reduced by 25 percent to 56 feet through
enhancement measures for Wetland A. Though SVC does not fully agree with a higher habitat score
for Wetland A or the regulated wetland classifications of Drainage Z, the Applicant will accept the
recommended buffer for Wetland A and Drainage Z by the City of Renton to enable the project to
move forward.
The project was carefully redesigned in order to avoid and minimize impacts to sensitive areas to the
greatest extent feasible. The proposed project must develop a stormwater pond in order to satisfy
state and local requirements. The proposed stormwater pond will be located outside of any critical
areas in the southeast corner of the subject property, further separating Wetland A from the proposed
building. The buffer for Wetland A must be reduced to accommodate this stormwater pond’s spatial
needs. The project proposes a reduced wetland buffer of 25 percent to 56 feet with restoration actions
to the buffer area to offset this reduction while providing adequate protection of the wetland. As the
current condition of the buffer consists of paved surfaces and is intervened by substantial
improvements, the buffer restoration measures will provide better protection for the wetland and
overall ecological benefit to the watershed to result in a net increase in habitat and water quality
functions. These restoration actions would not occur without the buffer reduction. The summary
table below identifies regulation by different agencies.
Wetland/
Drainage Name Size (Onsite) Category1
/Type
Regulated Under
Renton Municipal
Code 4-3-0502
Regulated
Under RCW
90.48
Regulated
Under Clean
Water Act
Wetland A 8,057 sq. ft. onsite Category
III Yes Yes Likely
Drainage Z 141 linear ft. N/A No No Not Likely
Notes:
1 Current Washington State Department of Ecology (Hruby, 2014) and RMC 4-3-050.G.2 wetland rating.
2 Per RMC 4-3-050.
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1413.0004 East Valley Road – Wetland and Fish and Wildlife Habitat Assessment
Table of Contents
Chapter 1. Introduction ................................................................................................................................... 1
Chapter 2. Proposed Project ........................................................................................................................... 2
2.1 Project Location ................................................................................................................................ 2
2.2 Project Description ........................................................................................................................... 2
Chapter 3. Methods .......................................................................................................................................... 4
Chapter 4. Existing Conditions....................................................................................................................... 5
4.1 Landscape Setting .............................................................................................................................. 5
4.2 Historical Landscape Setting ........................................................................................................... 5
4.3 Topography and Drainage Basin .................................................................................................... 6
4.4 Wetland Inventories .......................................................................................................................... 6
4.5 Soils ..................................................................................................................................................... 6
4.6 Vegetation .......................................................................................................................................... 7
4.7 Priority Habitats and Species ........................................................................................................... 7
4.8 Precipitation ....................................................................................................................................... 7
Chapter 5. Results ............................................................................................................................................. 8
5.1 Wetlands ............................................................................................................................................. 8
5.2 Drainages .......................................................................................................................................... 11
5.3 Off-Site Critical Areas .................................................................................................................... 12
Chapter 6. Regulatory Considerations ......................................................................................................... 14
6.1 Local Regulations .................................................................................................................................. 14
6.2 State and Federal Considerations .................................................................................................. 15
Chapter 7. Buffer Reduction and Restoration Plan ................................................................................... 16
7.1 Description of Impacts ........................................................................................................................ 16
7.2 Sequencing ............................................................................................................................................. 16
7.3 Restoration Strategy .............................................................................................................................. 17
7.4 Measures to Minimize Impacts ........................................................................................................... 18
7.5 Restoration Goals, Objectives, and Performance Standards .......................................................... 19
7.6 Plant Materials and Installation ........................................................................................................... 19
7.7 Conceptual Maintenance & Voluntary Monitoring Plan ................................................................ 24
7.8 Reporting ................................................................................................................................................ 24
7.9 Contingency Plan .................................................................................................................................. 25
Chapter 8. Closure .......................................................................................................................................... 26
Chapter 9. Qualifications ............................................................................................................................... 27
Chapter 10. References .................................................................................................................................. 28
Figures
Figure 1. Project Vicinity Map. ................................................................................................................. 2
Figure 2. Aerial Photograph of Subject Property. .................................................................................. 5
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1413.0004 East Valley Road – Wetland and Fish and Wildlife Habitat Assessment
Tables
Table 1. Precipitation Summary ................................................................................................................ 7
Table 2. Wetland Summary. ....................................................................................................................... 8
Table 3. Wetland A Summary ................................................................................................................... 9
Table 4. Functions and Values of Wetland A. ...................................................................................... 10
Table 5. Drainage Z Summary. ............................................................................................................... 12
Appendices
Appendix A — Methods and Tools
Appendix B – Background Information
Appendix C – Site Plans
Appendix D – Historical Aerial Photographs
Appendix E – Data Forms
Appendix F – Wetland Rating Form
Appendix G – Prior Approved Application and Wetland Rating
Appendix H – Qualifications
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Chapter 1. Introduction
Soundview Consultants LLC (SVC) has been assisting Latitude Development (Applicant) with
wetland delineation and fish and wildlife habitat assessment efforts for a proposed 35,000 square foot
building material retail center at 2960 East Valley Road in Renton, Washington. The subject property
is composed of four parcels and is currently developed with a lumber distribution facility, a car storage
and wrecking yard, and associated structures for a towing company. The subject property is situated
in the Southwest ¼ of the Northwest ¼ of Section 30, Township 23 N, Range 05 E, W.M. (King
County Tax Parcel Numbers 3023059096, 3023059098, 3023059099, and 3023059091).
The purpose of this wetland delineation and fish and wildlife habitat assessment report is to document
the presence of potentially-regulated wetlands, fish and wildlife habitat, and/or priority species on or
near the subject property; assess potential impacts to any such critical areas and/or species from the
proposed project; and provide impact avoidance and management recommendations.
This report provides conclusions and recommendations regarding:
• Site description, project description, and area of assessment;
• Identification, delineation, and assessment of potentially-regulated wetlands and other
hydrologic features within the vicinity of the proposed project;
• Identification and assessment of potentially-regulated fish and wildlife habitat and/or priority
species located on or near the subject property;
• Standard buffer recommendations, building setbacks, and development limitations;
• Existing conditions site map detailing identified critical areas and standard buffers;
• Proposed site plan with proposed project details;
• Documentation of impact avoidance and minimization measures;
• Buffer reduction plan with buffer restoration actions, and
• Supplemental information necessary for local regulatory review.
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Chapter 2. Proposed Project
2.1 Project Location
The proposed project is located at 2960 East Valley Road in Renton, Washington. The subject
property is situated in the Southwest ¼ of the Northwest ¼ of Section 30, Township 23 N, Range 05
E within the City of Renton (King County Tax Parcel Numbers 3023059096, 3023059098,
3023059099, and 3023059091).
To access the site from Highway 405 East, take Exit 2 East and continue for 0.1 miles. Keep left at
the form and then follow signs for WA-167 North/Renton and merge onto WA-167 North and
proceed for 0.5 miles. Use the left two lanes to stay on WA-167 and continue for 0.2 miles. Turn left
onto Southwest Grady Way and proceed for 0.3 miles. Turn left onto Lind Avenue Southwest and
continue for 0.3 miles. Turn left at the 2nd cross street onto Southwest 16th Street and proceed for
0.2miles. Continue onto East Valley Road for 0.8 miles. The site destination will be on the left.
Figure 1. Project Vicinity Map.
2.2 Project Description
The project proposes to provide a new lumber distribution and retail facility near West Valley
Highway consistent with the City of Renton zoning and nearby uses. The proposed project includes
demolition of existing structures, removal of scrap and debris associated with the previous land use,
Subject Property
(Approximate)
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and clearing and grading for construction of one 24,500-square foot of building material retail center
with associated infrastructure, including additional covered lumber sales structures, truck scale,
parking areas, utilities, and stormwater facilities.
The project was carefully designed in order to avoid and minimize impacts to sensitive areas to the
greatest extent feasible. The proposed project must develop a stormwater pond in order to satisfy
state and local requirements. The proposed stormwater pond will be located outside of any critical
areas in the southeast corner of the subject property, or in a vault detention system. The project
proposes restoration actions to the buffer area to offset this reduction while providing adequate
protection of the wetland which currently does not exist, as current condition of the buffer consists
of paved surfaces that were established and maintained under a prior land use. The buffer restoration
measures will provide better protection for the wetland and overall ecological benefit to the
watershed to result in a net increase in habitat and water quality functions. These restoration actions
would not occur without the buffer reduction. A buffer reduction and restoration plan is discussed
in Chapter 7 of this Report.
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Chapter 3. Methods
SVC investigated, assessed, and delineated wetlands, drainages, and other potentially-regulated fish
and wildlife habitat within the subject property and identified potentially-regulated features within 200
feet of the subject property during December of 2016. All wetland determinations were made using
observable vegetation, hydrology, and soils in conjunction with data from the U.S. Geographic Survey
(USGS) topographic maps, the Natural Resources Conservation Service (NRCS) Soil Survey, National
Wetlands Inventory (NWI), King County Geographic Information Services (GIS) data, City of Renton
GIS data, U.S. Fish and Wildlife Service (USFWS), Washington State Department of Natural
Resources (DNR), the Soil Survey of King County (Snyder et al., 1973), local precipitation data
(NOAA), and various orthophotographic resources
Wetland boundaries were determined using the routine approach described in the U.S. Army Corps
of Engineers’ Wetlands Delineation Manual (USACE, 1987) and modified according to the guidelines
established in the Regional Supplement to the Corps of Engineers Wetland Delineation Manual: Western
Mountains, Valleys, and Coast Region, Version 2.0 (USACE, 2010). Qualified SVC wetland scientists
marked boundaries of onsite wetlands with orange surveyor’s flagging labeled alpha-numerically and
tied to 3-foot lath or vegetation along the wetland boundary. Pink surveyor’s flagging was labeled
alpha-numerically and tied to 3-foot lath or vegetation at formal sampling locations to mark the points
where detailed data was collected. Additional tests pits were excavated at regular intervals inside and
outside of the wetland boundaries to further confirm each delineation.
SVC classified all wetlands using both the hydrogeomorphic (Brinson, 1993) and Cowardin
(Cowardin, 1979) classification systems, and assessed wetlands using the Wetland Functions
Characterization Tool for Linear Projects (WSDOT, 2000). Following classification and assessment,
WSDOE-trained scientists rated and categorized all wetlands using the Washington State Wetlands Rating
System for Western Washington (Hruby, 2014) and the definitions established in RMC 4-3-050.G.9.
Drainages and surface water features were classified using the DNR Water Typing System as described
in the Washington Administrative Code (WAC) Section 222-16 and the guidelines established in RMC
4-3-050.G.7.
The fish and wildlife habitat assessment was conducted during the same site visits by qualified fish
and wildlife biologists. Experienced biologists made visual observations using stationary and walking
survey methods for both aquatic and upland habitats noting any special habitat features or signs of
fish and wildlife activity.
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Chapter 4. Existing Conditions
4.1 Landscape Setting
The subject property is a highly disturbed industrial site that has been scraped, graded and paved under
a prior land use. The site is currently a retail lumber and distribution facility, auto wrecking site, and
storage yard, and contains four industrial service buildings. The subject property is bordered to the
north by a large commercial office building, to the east by Highway 167, to the south by a vacant lot
zoned for commercial use, and to the west by East Valley road with two large warehouse buildings
beyond.
Figure 2. Aerial Photograph of Subject Property.
4.2 Historical Landscape Setting
Historical photographs were examined in order to determine the past uses of the subject property.
The subject property has been in agricultural use since at least the 1930s. Aerial photographs from
1936 and 1940 indicate the subject property as agricultural farmland with row crops and plowing
shown throughout the subject property, as well as the surrounding valley landscape. A road is depicted
directly west of the subject property in the same orientation as the current East Valley Road. A 1964
aerial photograph depicts the subject property as cleared land with Highway 167 apparently under
construction to the east. A potential linear drainage feature is depicted on the southern border of the
subject property (see discussion of Drainage Z in Chapter 5 of this Report). A 1998 aerial photograph
depicts the subject property as it appears in its current state with several industrial buildings, vehicle
storage yards, and a wetland located on the eastern border. Historical aerial photographs are provided
in Appendix D.
Subject Property
(Approximate)
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The King County hydrographic and topographic map (Appendix B2) depicts Panther Creek traversing
through Wetland A in a west and then north direction; however, this feature is not depicted on the
City of Renton GIS data, DNR stream typing map, or WDFW SalmonScape map. It is conceivable
that this feature had continuous flow past the subject property historically, however, now it flows east
of Highway 167 to the north. Maps and data are provided in Appendix B.
4.3 Topography and Drainage Basin
The topography of the site is generally flat and at an elevation of approximately 20 feet above mean
sea level. The subject property is located within Water Resource Inventory Area (WRIA) 9 -
Duwamish-Green River Watershed. WRIA 9 is situated in southern Puget Sound and comprises most
of southern King county. On its west side, it is bounded by Puget Sound and its east side includes
portions of the Cascade Mountain range. WRIA 9 has a large amount of urban development and high
population density on its west side. This watershed includes only one major river, the Duwamish-
Green River which originates in the Cascade Mountains. The Green River is the source for much of
the drinking water for the Tacoma area and includes the Howard A. Hanson Dam, which is used for
flood control and reservoir purposes. The watershed includes various smaller streams such as Jenkins,
Little Soos, Newaukum and Boundary creeks.
4.4 Wetland Inventories
The City of Renton GIS map (Appendix B3) and USFWS NWI map (Appendix B4) identify a linear
wetland located offsite along the eastern subject property boundary. Potential wetland areas are also
documented greater than 200 feet east of the subject property, on the opposite side of Highway 167.
4.5 Soils
The NRCS Soil Survey of King County identifies two soil series present on the subject property:
Tukwila Muck (Tu) and Urban Land (Ur). The soil map is provided in Appendix B5. Below is a
detailed description of the soil profiles.
Tukwila muck (Tu)
Tukwila muck occurs on zero to one percent slopes and is considered to have very poor drainage. It
forms on floodplains with a parent material consisting of herbaceous organic material. In a typical
profile, the surface layer consists of muck from 0 to 19 inches below ground surface (bgs). The
subsurface layer consists of stratified diatomaceous earth to muck from 19 to 60 inches bgs. Tukwila
Muck is listed as hydric on the King County Hydric Soils List (NRCS, 2001).
Urban Land (Ur)
According to the soil survey, urban land soil type exhibits high anthropogenic disturbance. The natural
soil layers are disturbed and have three to twelve feet of added fill material to accommodate large
commercial, industrial, and residential developments. The soil varies from gravelly sandy loam to
gravelly loam in texture (NRCS, 1973). This is not listed as hydric soil on the King County Hydric
Soils List (NRCS, 2001), nor the Hydric Soils List of Washington State (NRCS, 1995).
While the NRCS soil survey depicts Tukwila Muck presence on the subject property and throughout
the region of development to the north and south of the subject property, it is highly unlikely that this
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soil is currently present in these locations due to the intensive development and historic manipulation
in the area.
4.6 Vegetation
Upland landscape consists of over-scraped, paved, and graded areas with the invasive Himalayan
blackberry scattered throughout the site. Onsite wetland areas were characterized by red alder, red-
osier dogwood, black cottonwood saplings, red-tinged bulrush, and cat tails with sparse reed
canarygrass. The onsite drainage feature is dominated by invasive species such as field bindweed and
Himalayan blackberry with lesser amounts of red alder.
4.7 Priority Habitats and Species
The City of Renton GIS data does not identify any streams on the subject property. A Type F stream
is located to the east of Highway 167 approximately 400 feet away from the subject property
(Appendix B7). The DNR Stream Typing map does not identify any streams on or near the vicinity
of the subject property (Appendix B6). The WDFW SalmonScape map does not identify any streams
located on the subject property.
4.8 Precipitation
Precipitation data was obtained from the National Oceanic and Atmospheric Administration (NOAA)
weather station at the Seattle-Tacoma International Airport in order to obtain percent of normal
precipitation during and preceding the investigation. A summary of data collected is provided in
Table 1.
Table 1. Precipitation Summary
Date Day
of1
Day
Before1
1 Week
Prior1
2 Weeks
Prior1
Month To
Date3
(Observed/
Normal)
Water Year
to Date 4
(Observed/
Normal)
Percent of Normal
(MTD/Water Year)5
12/15/16 T2 0.00 0.76 1.73 1.63/2.70 18.16/12.75 60/142
Notes:
1. Data obtained from the NOAA weather website at SeaTac International Airport http://w2.weather.gov/climate/xmacis.php?wfo=sew
2. Trace amounts.
3. Month-to-date value obtained from the first day of the onsite date visit month to the onsite date.
4. Water Year is precipitation from October 1 to the onsite date.
5. Percent of Normal shown for both the Month-to-Date and the Water Year.
Precipitation for the December 2016 onsite visit was 60 percent of normal for the month-to-date and
142 percent of normal for the 2016/2017 water year. This precipitation data suggests that significantly
high precipitation for the 2016/2017 water year may have caused some areas that are not normally
wet to become saturated and/or inundated at the time of the site investigations due to higher than
normal precipitation. Such conditions were considered in making professional wetland boundary
determinations.
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Chapter 5. Results
5.1 Wetlands
The site investigation identified one potentially-regulated wetland (Wetland A) located on the eastern
border of the subject property extending offsite to the north and south. One additional offsite wetland
was also observed across Highway 167 approximately 275 from the subject property. SVC’s site
investigation in the spring of 2017 consisted of walk-through surveys of all accessible areas on or
within 300 feet of the subject property per RMC 4-3-050. The identified wetland contained indicators
of wetland hydrology, hydric soils, and a predominance of hydrophytic vegetation according to current
wetland delineation methodology. Wetland data forms are provided in Appendix E, and a wetland
rating form is provided in Appendix F. Table 2 summarizes the wetland identified on the subject
property,
Table 2. Wetland Summary.
Wetland
Predominant Wetland Classification / Rating Wetland
Size
(acres)
Buffer
Width
(feet)E CowardinA HGMB WSDOEC City of RentonD
A PSS/EMH Depressional III III 0.23 56
Notes:
A. Cowardin et al. (1979) and Federal Geographic Data Committee (2013), or National Wetland Inventory (NWI) Class based on vegetation: PEM
= Palustrine Emergent; PSS = Palustrine Scrub-Shrub; Modifiers (-H) = Water Regime or Special Situations for a permanent flooding
hydroperiod.
B. Brinson, M. M. (1993).
C. Ecology rating per Washington State Wetland Rating System for Western Washington – Revised Hruby (2014).
D. RMC 04-03-050.G.9. definition (verified with Ecology 2014 rating forms).
E. RMC 4-3-050.G.2. buffer width standards.
F. RMC 4-3-050. I.1. buffer width reduction by 25 percent.
Wetland A is located on the eastern boundary of the subject property extending offsite. Wetland A is
8,057 square-feet (0.18-acre) in size onsite, and has a permanently flowing outlet. Hydrology for
Wetland A is provided by a seasonally high groundwater table, direct precipitation, and stormwater
runoff from adjacent high intensity land uses with excess impervious surfaces. The dominant
vegetation in this wetland is red alder saplings, Pacific willow, red osier dogwood, black cottonwood
saplings, red-tinge bulrush, and reed canarygrass. Wetland A is a Palustrine Scrub-Shrub/Emergent,
Permanently Flooded wetland. Under RMC 4-3-050.G.9, Wetland A is a Category III depressional
wetland with a habitat score of 4 points. Under RMC 4-3-050.G.2 and RMC 4-3-050.I.1, Category III
wetlands with a habitat score of 3-4 points and with a land uses other than low impact uses require a
standard buffer of 75 feet which can be reduced by 25 percent through restoration measures. This
wetland rating is consistent with an approved wetland rating for Wetland A for the adjacent property
to the north for an application as recent as December 2016 (Appendix G). After review, the City of
Renton is classifying Wetland A as a Category III wetland with a habitat score of 5 habitat points. The
City of Renton recommends a 75-foot standard buffer which can be reduced by 25 percent to 56 feet
through enhancement measures for Wetland A. Though SVC does not fully agree with a higher
habitat score for Wetland A, the Applicant will accept the recommended buffer for Wetland A and by
the City of Renton to enable the project to move forward. Table 3 provides a detailed summary of
Wetland A.
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Table 3. Wetland A Summary
WETLAND A – INFORMATION SUMMARY
Location: Along the eastern property boundary.
Local Jurisdiction Renton
WRIA 9 – Duwamish - Green
Ecology Rating
(Hruby, 2014)A III
City of Renton RatingB III
City Buffer WidthC 75-foot standard buffer
Building Setback 15 feet
Wetland Size 8,057 square feet (0.18
acres) onsite
Cowardin ClassificationD PSS/EMH
HGM ClassificationE Depressional
Wetland Data Sheet(s) DP-1
Upland Data Sheet (s) DP-2
Boundary Flag color Orange
Dominant
Vegetation
The dominant vegetation in this wetland are red alder saplings, Pacific willow, red osier dogwood,
black cottonwood saplings, cattails, red-tinge bulrush, and reed canarygrass.
Soils Mapped as Tukwila Muck. Hydric soil indicator A4 observed.
Hydrology Hydrology for Wetland A is provided by surface sheet flow, direct precipitation, a seasonally-high
groundwater table, and excess stormwater runoff from surrounding development
Rationale for
Delineation
Wetland boundaries were determined by topographic drop and a transition to hydrophytic plant
community.
Rationale for
Local Rating
Wetland A is rated according to the Washington State Wetlands Rating System for Western Washington –
Washington State Department of Ecology Publication No. 14-06-029, published October 2014 (Hruby, 2014)
and guidelines established in the Renton Municipal Code 4-3-050.G.9.
Wetland Functions Summary
Water Quality
Wetland A has the opportunity to retain sediments and pollutants from stormwater runoff
associated with the nearby road and development. As this wetland is located in close proximity to
a 303(d) waterway, it has relatively moderate capabilities of supporting water quality functions
onsite. Wetland A’s score for Water Quality Functions using the 2014 method is moderate (6).
Hydrologic
Storage capacity is moderate due to its permanently ponded hydroperiod, therefore hydrologic
function is limited to moderate reductions of surface flows during storm events. Wetland A’s
score for Hydrologic Functions using the 2014 method is moderate (6).
Habitat
Habitat functions provided by the wetland may include limited small bird foraging and wetland
associated amphibians and mammals due to its permanent ponding hydroperiod; however,
minimal other habitat functions are provided due to the wetland being surrounded by
development. Wetland A’s score for Habitat Functions using the 2014 method is low (4).
Buffer Condition
The buffer surrounding Wetland A is substantially impacted by adjacent industrial development
and Highway 167. The onsite buffer is paved and maintained under a prior land use. Vegetation
that partially surrounds consists primarily of Himalayan blackberry. The buffer provides no
screening of the wetland from outside disturbances and little or no water quality enhancement.
Notes:
A. WSDOE rating according to Washington State Wetland Rating System for Western Washington – Hruby (2014).
B. RMC (4-3-050.G.9), as amended.
C. Recommended wetland buffer width with reduction modification according to RMC 4-3-050.D.5.c.iv.
D. Cowardin et al. (1979) Federal Geographic Data Committee (2013) or NWI Class based on vegetation: PEM = Palustrine
Emergent; PSS= Palustrine Scrub-Shrub Modifier (-H) = Water Regime or Special Situations for Permanent ponding.
E. Brinson, M. M. (1993).
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Wetland A Functions
The wetland on the subject property may provide some water quality and hydrologic functions, such
as limited stormwater retention and infiltration, water quality enhancement, and wildlife habitat.
Wetland functions were evaluated using the Wetland Functions Characterization Tool for Linear Projects
(BPJ) (WSDOT, 2000) in conjunction with the Western Washington Wetland Rating System - Revised
(Hruby, 2014).
Wetland A is moderately vegetated with two Cowardin classifications (scrub-shrub and emergent
strata) and as such provides general habitat suitability due to the increased diversity in strata. Storage
capacity is moderate due to the size of the wetland unit; therefore, hydrologic function is limited to
minor reductions of surface flows during storm events. The wetland has the potential to retain
sediments and pollutants and has the potential to provide moderate biofiltration. Habitat capacity is
limited to small bird foraging and amphibian refugia, but lacks plant richness and quality functioning
buffers. The wetland unit is long durational seasonally flooded and therefore provides the potential
habitat for wetland-associated aquatic invertebrates, as well as habitat for amphibians. This wetland
does not provide general fish habitat as there are no documented fish species associated with Wetland
A.
Table 4. Functions and Values of Wetland A.
Function / ValueA Wetland
A
Water Quality Functions
Sediment Removal x
Nutrient and Toxicant Removal x
Hydrologic Functions
Flood Flow Alteration -
Erosion Control and Shoreline Stabilization -
Habitat Functions
Production and Export of Organic Matter -
General Habitat Suitability x
Habitat for Aquatic Invertebrates x
Habitat for Amphibians x
Habitat for Wetland-Associated Mammals -
Habitat for Wetland-Associated Birds -
General Fish Habitat -
Native Plant Richness -
Special Characteristics
Educational or Scientific Value -
Uniqueness and Heritage -
Notes:
1. “-“ Is the function is not present; “x” means that the function is present is of lower quality; and “+” means the function is present and is of
higher quality.
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Wetland A Buffer
The upland buffer surrounding Wetland A is dominated by Himalayan blackberry, bull thistle,
Canadian thistle, and morning glory. Non-native invasive species make up approximately 30 percent
of the vegetative cover of the narrow and degraded onsite buffer. Most of the onsite buffer area
consists of paved surfaces maintained under a prior land use. The eastern offsite border of Wetland
A abuts Washington State Route 167.
Wetland A is a Category III wetland with a low habitat score. Wetland A requires a 75-foot standard
buffer based on high intensity land uses. An additional 15-foot building setback is also required from
the edge of the wetland buffer (RMC 4-3-050.G.2 and RMC 4-3-050.I.1). This buffer and wetland
rating is consistent with a prior approved wetland rating for Wetland A by a prior (2016) application
(Appendix G). After review, the City of Renton has recommended a 75-foot standard buffer which
can be reduced by 25 percent to 56 feet through enhancement measures for Wetland A.
5.2 Drainages
The site investigation identified one non-regulated unnamed drainage ditch located on the southern
border of the subject property (Drainage Z). Drainage Z flows along the southern border of the
subject property, traversing in an east to west direction and flowing into an approximate 24-inch
culvert under East Valley Road, continuing west under other developments west of East Valley Road.
Drainage Z is not recognized by the City of Renton GIS data, DNR stream typing map, or WDFW’s
SalmonScape map. Historical photographs were examined to identify when Drainage Z was created.
An aerial photograph from 1964 depicts a linear feature on the southern border of the subject property
and in the same location and orientation as Drainage Z. Highway 167 is also apparently under
construction in this 1964 historic aerial, suggesting that Drainage Z was artificially constructed to
provide drainage for the new highway.
Drainage Z provides a permanently flowing outlet for Wetland A but does not likely drain the entire
Wetland A unit as Wetland A continues south and north along the west side of Highway 167. Drainage
Z primarily drains adjacent uplands. According to RMC 4-3-050.G.7.b, waters that are considered
“intentionally created” are not regulated, including irrigation ditches, grass-lined swales, and canals
that do not meet the criteria for Type S, F, Np, or Ns waterbodies. As background data shows,
purposeful creation is documented through historical aerial photograph research as the 1936 and 1940
historical aerial photographs illustrate the current drainage alignment in agricultural production, and
the 1964 aerial photograph depicts the drainage intentionally created concurrently with the
construction of Highway 167 (See Appendix D for historical aerial photographs). Therefore, Drainage
Z should be considered an intentionally created feature. After review, the City of Renton is classifying
Drainage Z as the same regulated wetland as Wetland A. The City of Renton recommends a 75-foot
standard buffer which can be reduced by 25 percent to 56 feet through enhancement measures for
Wetland A. Though SVC does not fully agree with the regulated wetland classifications of Drainage
Z, the Applicant will accept the recommended buffer for Drainage Z by the City of Renton to enable
the project to move forward. A summary of Drainage Z is provided in Table 5 below.
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Table 5. Drainage Z Summary.
DRAINAGE INFORMATION SUMMARY
Feature Name Drainage Z
WRIA 9 – Duwamish - Green
Local Jurisdiction City of Renton
DNR Stream Type N/A
Local Rating1 N/A
Intentionally-created feature
Buffer Width1 N/A
Intentionally-created feature
Building Setback N/A
Documented Fish
Use None
Location of Feature Drainage Z is located on the southern border of the subject property, traversing
in an east to west direction.
Connectivity (where
water flows from/to)
Drainage Z likely originates from the east and flows west under East Valley
Road.
Documented Fish
Species N/A
Riparian/Buffer
Condition
The onsite buffer of the drainage is highly disturbed and dominated by invasive
vegetation including reed canarygrass and Himalayan blackberry. The drainage
is surrounded by paved surfaces under a prior land use.
Notes:
1. RMC 4-3-050.G.7.b.
5.3 Off-Site Critical Areas
Off-Site Wetlands and Features
Wetland A extends offsite of the subject property to the north and south along the eastern border of
the subject property. One additional offsite wetland was observed 275 feet to the east of the of the
subject property across Highway 167. The proposed development is separated from the offsite
wetlands by a pre-existing, intervening, lawfully created structure and other substantial improvement
(paved surfaces, Highway 167 and 6-foot high fencing) along the eastern and southern border of the
subject property, and should be except from critical area buffers per RMC4-3-050.B.1.g; however, the
applicant is proposing buffer restoration out of an abundance of caution. The potential offsite buffers
would not encroach onto the subject property, and the proposed development should not affect any
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offsite critical areas. Additionally, there is an offsite construction stromwater pond approximately 30
feet south of the subject property. There is observable silt fencing around the stormwater pond.
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Chapter 6. Regulatory Considerations
The results of the investigation identified one potentially-regulated Category III wetland (Wetland A)
and one non-regulated drainage ditch (Drainage Z) located on the subject property. The project
proposes a reduced wetland buffer with restoration actions to the buffer area to compensate for the
reduction. To optimize site use while conforming to development standards set forth by the City of
Renton, a stormwater pond is proposed in the southeastern portion of the subject property. This
chapter discusses the regulatory implications and considerations of the proposed project development.
6.1 Local Regulations
The proposed project is designed to meet the City of Renton Critical Areas Regulations as outlined in
RMC 4-3-050 for an enhanced buffer plan to compensate for the proposed buffer reduction and
enhancement. The following section details how these codes are being met.
6.1.1 Wetland Buffer Requirements and Modifications
Wetland A is a Category III wetland and requires a standard buffer width of 75 feet with an additional
building set back of 15 feet (RMC 4-3-050.G.2). Per RMC 4-3-050.I.1, a buffer reduction is allowed
by 25 percent, provided requirements are met pursuant to RMC 4-3-050.I.3, which would reduce the
Wetland A buffer width to 56 feet. Further, after review by the City of Renton, the recommendation
for Wetland A was also a 75-foot standard buffer with a reduced buffer of 56 feet through
enhancement measures. A buffer restoration plan is outlined in Chapter 7 of this Report in order
compensate for the reduction. The buffer restoration plan, as described in detail in Chapter 7,
proposes removal of paved surfaces from the wetland buffer to provide an undulating topography,
revegetated with native plant species to help re-establish a more natural buffer area adjacent to the
wetland. In fact, the value and benefit of the buffer restoration actions proposed will greatly exceed
any minor impacts associated with reduction of the buffer. The buffer being restored is currently
paved surface and only contains a few trees adjacent to the wetland. As a result, the proposed buffer
reduction will result in no net loss of buffer or habitat functionality and the restoration actions will
enhance buffer functions and values to better protect the wetland.
6.1.2 Drainages
Drainage Z is a linear drainage ditch intentionally created in an upland area. Drainage Z flows along
the southern border of the subject property, traversing in an east to west direction and flowing into
a culvert under East Valley Road. Historical aerials clearly depict that Drainage Z was artificially
created sometime between 1940 and 1964, in concurrence with the construction of Highway 167.
The drainage feature was likely intentionally created to direct stormwater away from the highway.
Historical aerials of the subject property are provided in Appendix B2. According to RMC 4-3-
050.G.7.b, intentionally created irrigation ditches, grass-lined swales, and canals are not regulated
features. However, after review, the City of Renton is classifying Drainage Z as the same regulated
wetland as Wetland A. The City of Renton recommends a 75-foot standard buffer which can be
reduced by 25 percent to 56 feet through enhancement measures for Wetland A. Though SVC does
not fully agree with the classifications of Drainage Z, the Applicant will accept the recommended
buffer for Drainage Z by the City of Renton to enable the project to move forward..
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6.2 State and Federal Considerations
The onsite Wetland A has a surface and/or subsurface connection to waters of the United States;
therefore, this feature is regulated under Section 404 of the CWA. However, as no direct impacts to
wetlands are proposed, permitting under USACE is not required at this time. The WSDOE also
regulates wetlands and natural surface waters under RCW 90.48. The WSDOE does not, however,
recognize non-wetland drainage swales and ephemeral/stormwater ditches excavated from uplands as
features typically subject to regulation under RCW 90.48.
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Chapter 7. Buffer Reduction and Restoration Plan
The proposed buffer restoration plan for the project attempts to provide adequate protection of the
wetland functions while allowing a 25 percent reduction of the buffer under RMC 4-3-050.I.3.a.
Removal of paved surfaces will develop restored wetland function with increased hydraulic function
and storage capacity, and planting of native vegetation and placement of large woody debris (LWD)
will augment nature processes. All work is proposed with the goal of improving hydrologic, water
quality, and habitat functionality of Wetland A and associated buffer.
7.1 Description of Impacts
The project proposes a buffer reduction and restoration for Wetland A which will reduce the standard
buffer by 25 percent to 56 feet. To optimize site use while conforming to the City of Renton’s
development standards, the project proposes to construct the stormwater pond in the southeastern
portion of the subject property between Wetland A and the proposed building, outside of the reduced
Wetland A buffer or in a vaulted detention system.
Impacts are expected to be minimal. Potential temporary minor impacts may occur with the removal
of paved surfaces for buffer restoration or due to the development of the stormwater pond. As such,
these developments add function and value by increasing water quality while also facilitating the
growth for a healthy wetland buffer. Further, the current condition of the buffer consists of paved
surfaces. Construction of the stormwater feature will further buffer the wetland from the proposed
development, and without the proposed development the buffer would remain in its current state
which is paved and maintained. Temporary impacts include potential minor excavation within the
Wetland A buffer to facilitate nature buffer processes, as well as excavation outside of the reduced
buffer for stormwater pond development. During construction activities, the project will implement
all appropriate best management practices (BMPs) and temporary erosion and sediment control
(TESC), which are measures to reduce potential temporary impacts due to grading actions.
7.2 Sequencing
To meet the need of the proposed development, a new approximate 24,500-square foot building and
associated infrastructure needs to be constructed. In addition, local building, fire, and site
development regulations require additional parking access, storm, and fire services. The Wetland A
buffer which is currently paved and maintained under a prior land use will need to be reduced to
allow adequate infrastructure. The project location is currently separated from the critical areas onsite
by a pre-existing, intervening, lawfully created structure and other substantial improvement (paved
surfaces and 6-foot high solid fence, existing industrial uses) along the eastern and southern border
of the subject property. The stormwater pond will be developed outside of the reduced buffer.
Impacts to critical areas are being avoided through careful design, and the implementations of the
restoration actions will result in an ecological lift from the current conditions of paved surfaces.
Other than the proposed restoration actions, the project was carefully designed to avoid direct
impacts to all onsite critical areas and buffers.
Wetland A is constrained by Highway 167 to the east and paved surfaces onsite to the west, exhibiting
no functional buffer within the surrounding areas onsite or offsite. Through careful planning efforts
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the proposed project avoids on-site impacts by locating the development away from Wetland A and
provides buffer restoration actions to restore the currently non-existent buffer functionality of
Wetland A. The restoration actions will achieve a net gain in critical area protections and improvement
in watershed functions. The buffer for Wetland A will be protected and restored per the specifications
and plans presented herein. In addition, the project itself has been designed specifically to protect
hydrology and water quality by locating stormwater treatment ponds between the project’s developed
areas and Wetland A, thus providing additional buffering distance from facility operations and
increasing buffer functionality over existing conditions, or stormwater detention will be in
underground vaults. The proposed project provides comprehensive stormwater treatment and flow
control to minimize impacts on hydrology, and silt fences and other TESC measures will be installed
and maintained on the site to minimize construction impacts on sedimentation and water quality.
7.3 Restoration Strategy
Buffer restoration is proposed to restore wetland habitat functionality and increase hydrologic
function and storage capacity in an area currently degraded by industrial use. This restoration plan
proposes to offset potential impacts associated with construction and to significantly expand storage
capacity by removing paved surfaces, improve conveyance, facilitate natural processes, improve
wildlife habitat complexity, and restore native vegetation and habitat structures and associated onsite
buffers.
The proposed actions to the buffer of Wetland A buffer will involve extensive removal of paved
surfaces and fill to provide an undulating topography, soil decompaction, removal of trash and non-
native invasive plant species, planting native plant species using the plant list provided in Table 6-8
and Appendix C, and installation of a protective fence along the outer buffer edge. An approximate
2:1 cut will then be used to meet the existing grade adjacent to the stormwater pond. All grading will
be rough to mimic natural topography, and upland hummocks will be strategically located to provide
additional wildlife habitat areas. As some trees are currently located adjacent to the wetland,
deciduous trees will be preserved where possible on hummocks. Additional wildlife habitat features,
such as standing snags and LWD will be installed in select locations. These features will effectively
screen Wetland A from disturbances and protect the wetland functions and values. The proposed
project has been carefully designed to avoid direct impacts to Wetland A as a result of the proposed
development and/or during wetland buffer restoration activities. As the buffer surrounding Wetland
A is comprised of paved surfaces and existing anthropogenic impacts, the proposed restoration
actions are anticipated to improve wetland buffer protections and internal wetland functions by
establishing an overall net gain in buffer functionality, allowing for improvement over existing
wetland protections and will function at a higher level than the standard buffer.
Light intrusion into Wetland A will be minimized by directing lights away from the wetland, and traffic
will be routed outside the adjusted wetland buffer to mitigate vehicle light intrusion. A selection of
native plants will be installed along the outer perimeter of the wetland buffer to reduce the opportunity
for physical intrusion into the buffer, and a fence will be installed along the perimeter of the critical
area buffer. No unauthorized pesticide use will be permitted within the wetland or wetland buffer.
As part of the construction plan, BMPs will be applied during construction to control dust and surface
runoff.
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These measures demonstrate that construction and post-construction efforts are designed to maintain
the buffer in a natural vegetative state while minimizing further impacts from the development or
adjacent land use.
Restoration actions for the wetland buffer include, but may not be limited to, the following
recommendations:
• Removal of paved surfaces and trash and debris within the wetland buffer;
• Pre-treat invasive plants with an herbicide approved by Washington Department of
Agriculture, then grub to remove the invasive plants, and replant all cleared areas with using
the native species outlined in Table 6-8 and Appendix C. Pre-treatment of the invasive plants
should occur a minimum of two weeks prior to removal;
• Replant all areas with native trees, shrubs, and groundcovers listed in Section 7.6.3, or
substitutes approved by the responsible wetland scientist, to help retain soils, filter
stormwater, and increase biodiversity;
• An approved native seed mix will be used to seed the disturbed areas after planting;
• Maintain and control invasive plants annually, at a minimum, or more frequently if
necessary. Maintenance to reduce the growth and spread of invasive plants is not restricted
to chemical applications but may include hand removal, if warranted;
• Provide dry-season irrigation as necessary to ensure native plant survival;
• Direct exterior lights away from the wetlands wherever possible, and
• Place all activities that generate excessive noise (e.g., generators and air conditioning
equipment) away from the wetlands where feasible.
7.4 Measures to Minimize Impacts
The proposed restoration plan is intended to provide increased wetland protections by maintenance
or improvement of wetland buffer functions. Impacts to the wetland buffer are being minimized
through careful planning efforts and project design. Restoration actions of disturbed areas within the
wetland buffer should occur immediately after grading is complete. A concrete wash water collection
basin should also be installed away from any onsite buffers prior to commencement of any
construction activities requiring additional concrete work. TESC measures will be implemented that
consist of high visibility fence installed around native vegetation along the perimeter of the reduced
buffer, silt fencing between the graded areas and undisturbed buffer, plastic sheeting on stockpiled
materials, and seeding of disturbed soils. These TESC measures should be installed prior to the start
of development or restoration actions and actively managed for the duration of the project.
All equipment staging and materials stockpiles should be kept out of the buffer, and the area will need
to be kept free of spills and/or hazardous materials. Equipment will be kept in good working order
free of leaks. All fill material and road surfacing should be sourced from upland areas onsite or from
approved suppliers, and will need to be free of pollutants and hazardous materials. Construction
materials along with all construction waste and debris should be effectively managed and stockpiled
on paved surfaces and kept free of the remaining wetland buffer area. Following completion of the
residence, the entire site should be cleaned and detail graded using hand tools wherever necessary, and
TESC measures will need to be removed.
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7.5 Restoration Goals, Objectives, and Performance Standards
Approximately 54,505-square feet of wetland buffer will be reduced and restored in accordance to
standards set forth in RMC 4-3-050.I.3.a. Restoration actions for the wetland buffer include, but may
not be limited to, the following voluntary recommendations:
Goal 1 – Restore buffer function for Wetland A by establishing an approximately 56-foot wide
functional buffer with associated habitat features.
Objective 1 – Establish approximately 54,505 square feet of functional buffer area adjacent to
Wetland A through the removal of paved surfaces.
Performance Standard 1 – As measured from wetland boundary onsite, the total size of
functional buffer area onsite will measure 54,505 square feet (1.25 acres) in size.
Goal 2 – Improve habitat functions within Wetland A by reducing presence of invasive species and
increasing presence of native vegetation and habitat features and diversity within the buffer areas
Objective 2 – Effectively control and/or eliminate invasive species from the buffer restoration
area.
Performance Standard 2 – Non-native invasive plants will be removed and will not make
up more than 20 percent total cover within the restoration area in all monitoring years.
Objective 3 – Establish areas of differing forest and scrub-shrub communities and various
habitats to create diverse horizontal and vertical vegetation structure and additional
wildlife habitat.
Performance Standard 3 – By the end of Year 5, the restoration area will have a least 3
species of native trees, 3 species of native shrubs, and 3 species of native vegetation;
native volunteer species will be included in the count.
Performance Standard 3.1 - The restoration area will contain at least 30 percent total cover
by native tree species and 50 percent total cover by native shrub species by Year 5.
7.6 Plant Materials and Installation
7.6.1 Planting Plan
The planting plan is approximate and subject to field verification prior to installation. All plantings
are intended to establish a variety of native forested and scrub-shrub communities within the buffer.
The proposed plant lists (Tables 6 through 8) and planting details are provided in Appendix C. The
plant lists are based on a variety of factors such as habitat functions, availability of plant material,
anticipated hydrology, and likelihood of survival and are intended to be adaptive under the direction
of the Project Biologist.
All areas will be planted with native shrubs and trees after seeding with the approved seed mixes to
help prevent growth of invasive and noxious plants and after site stabilization and confirmation of
site hydrology with the Project Biologist. In addition, a three-inch layer of mulch with a two-foot
diameter will be placed around each tree or shrub to help maintain moisture around the plants and
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reduce competition from herbaceous species. Riparian and wetland seed mixes will be seeded
throughout the restoration area. The intent of these mixes is to allow natural germination and
adaption of herbaceous plants and prevent erosion.
7.6.2 Planting Materials
All plant materials to be used on the site will be nursery grown stock from a reputable, local source.
Only native species are to be used; no hybrids or cultivars will be allowed within the restoration area.
Plant material provided will be typical of species or variety; if not bare root or cuttings, all plants will
exhibit normal, densely-developed branches and vigorous, fibrous root systems. Plants will be
sound, healthy, vigorous plants free from defects, and all forms of disease and infestation.
Container stock shall have been grown in its delivery container for not less than six months but not
more than two years. Plants shall not exhibit root bound conditions. Seed mixture used for hand
or hydroseeding shall contain fresh, clean, and new crop seed mixed by an approved method. The
mixture is to be mixed to the specified proportions indicated in Table 6 by weight and tested to
minimum percentages of purity and germination.
Fertilizer will be in the form of Agroform plant tabs or an approved like form. Mulch will consist of
sterile wheat straw or clean recycled wood chips approximately 1/2 inch to 1 inch in size and 1/2
inch thick. If free of invasive plant species, the mulch material may be sourced from woody materials
salvaged from the land clearing activities.
7.6.3 Plant Scheduling, Species, Size, and Spacing
Plant installation should occur as close to conclusion of clearing and grading activities as possible to
limit erosion and limit the temporal loss of function provided by the buffer. All planting should
occur between September 1 and May 1 to ensure plants do not dry out after installation, or temporary
irrigation measures may be necessary. All planting will be installed according to the procedures
detailed in the following subsections using the species and densities outlined in Tables 7 and 8 below.
Table 6. Wetland Buffer and Wetland Seed Mix (substitutions allowed with Project Biologist
approval)
Species Name Common Name Plant Status Percentage by weight
Spike betngrass Agrostis exarata FACW 10
Tufted hairgrass Deschampsia cespitosa FACW 10
Annual hairgrass Deschampsia danthonioides FACW 10
Slender hairgrass Deschampsia elongata FACW 10
Blue wildrye Elymus glaucus FACU 25
Meadow barley Hordesum brachyantherum FACW 25
Streamside lupine Lapinus plyphyllus FAC 10
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Table 7. Tree Restoration Plan Plant Species
Plant Name Spacing Size
Scientific Common Plant
Status
Quantities
Tree 54,505 SF
Abies grandis Grand fir FACU 7 10 - 12 ft Bare root
Acer macrophyllum Big leaf maple FACU 8 10 - 12 ft Bare root
Alnus rubra Red Alder FAC 10 8 - 10 ft Bare root
Betula papyrifera Paperbark birch FAC 30 8 - 10 ft Bare root
Crataegus douglasii Douglas hawthorn FAC 10 4 - 5 ft Bare root
Fraxinus latifolia Oregon ash FACW 5 8 - 10 ft Bare root
Picea sitchensis Sitka spruce FAC 30 12 - 15 ft Bare root
Pinus monticola Western white pine FACU 8 10 - 12 ft Bare Root
Populus tremuloides Quaking aspen FACU 8 10 - 12 ft Bare root
Populus trichocarpa Black cottonwood FAC 13 10 - 12 ft Bare root
Prunus emarginata Bitter cherry FACU 30 10 - 12 ft Bare root
Pseudotsuga menziesii Douglas fir FACU 30 10 - 12 ft Bare root
Thuja plicata Western red cedar FAC 13 10 - 12 ft Bare root
Tsuga heterophylla Western hemlock FACU 13 10 - 12 ft Bare root
Table 8. Shrub Restoration Plan Plant Species
Acer circinatum Vine maple FAC 67 4 - 5 ft Bare root
Amelanchier alnifolia Service berry FACU 84 4 - 5 ft Bare root
Cornus sericea Red-twig dogwood FACW 117 4 - 5 ft Bare root
Corylus cornuta Western hazlenut FACU 67 4 - 5 ft Bare root
Holodiscus discolor Oceanspray FACU 84 4 - 5 ft Bare root
Lonicera involucrata Black twinberry FAC 84 4 - 5 ft Bare root
Malus fusca Western crabapple FACW 40 8 - 10 ft Bare Root
Oemleria cerasiformis Indian plum FACU 40 4 - 5 ft Bare root
Physocarpus capitatus Pacific ninebark FACW 60 4 - 5 ft Bare root
Rhamnus purshiana Cascara FAC 60 4 - 5 ft Bare root
Ribes sanguineum Red-flowering currant (NL)
UPL
67 4 - 5 ft Bare root
Rosa nutkana Nootka rose FAC 67 4 - 5 ft Bare root
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Rosa pisocarpa Clustered wild rose FAC 67 4 - 5 ft Bare root
Rubus spectabilis Salmonberry FACU 60 4 - 5 ft Bare root
Salix hookeriana Hooker's willow FACW 20 4 - 5 ft Stakes
Salix lucida Pacific willow FACW 20 8 - 10 ft Stakes
Salix scolleriana Scouler's willow FAC 20 4 - 5 ft Stakes
Salix sitchensis Sitka willow FACW 20 4 - 5 ft Stakes
Sambucus racemosa Red elderberry FACU 67 4 - 5 ft Bare root
Symphoricarpos albus Snowberry FACU 67 4 - 5 ft Bare root
7.6.4 Quality Control for Planting Plan
All plant material shall be inspected by the Project Biologist upon delivery. Plant material not
conforming to the specifications above will be rejected and replaced by the planting contractor.
Rejected plant materials shall be immediately removed from the site. Under no circumstances shall
container stock be handled by their trunks, stems, or tops.
The Landscape Contractor shall provide the Project Biologist with documentation of plant material
that includes the supplying nursery contact information, plant species, plant quantities, and plant
sizes.
7.6.5 Product Handling, Delivery, and Storage
All seed and fertilizer should be delivered in original, unopened, and undamaged containers showing
weight, analysis, and name of manufacturer. This material should be stored in a manner to prevent
wetting and deterioration. All precautions customary in good trade practice shall be taken in
preparing plants for moving. All plant materials to be used on the site will be nursery grown stock
from a reputable, local source. Workmanship that fails to meet industry standards will be rejected.
Plants will be packed, transported, and handled with care to ensure protection against injury and
from drying out. If plants cannot be planted immediately upon delivery they should be protected
with soil, wet peat moss, or in a manner acceptable to the project biologist. Plants, fertilizer, and
mulch not installed immediately upon delivery shall be secured on the site to prevent theft or
tampering. No plant shall be bound with rope or wire in a manner that could damage or break the
branches. Plants transported on open vehicles should be secured with a protective covering to
prevent windburn. Only native species are to be used; no hybrids or cultivars will be allowed.
7.6.6 Preparation and Installation of Plant Materials
The Landscape Contractor shall verify the location of all elements of the restoration plan with the
Project Biologist prior to installation. The responsible Project Biologist reserves the right to adjust
the locations of landscape elements during the installation period as appropriate to the restoration
actions outlined above. If obstructions are encountered that are not shown on the drawings, planting
operations will cease until alternate plant locations have been selected by and/or approved by the
Project Biologist.
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The removal of fill and decompaction of soils will be conducted within the buffer restoration area.
Mulch will be installed around the plantings, and if necessary, topsoil or compost can be imported
for the planting area should adequate soil conditions not be present after decompaction. Importing
of topsoil or compost should be an onsite decision by the Project Biologist after the removal of fill
and decompaction actions.
Circular plant pits with vertical sides will be excavated for all container and bare root stock. The pits
should be at least 12 inches in diameter, and the depth of the pit should accommodate the entire
root system. The bottom of each pit will be scarified to a depth of 4 inches.
Broken roots should be pruned with a sharp instrument and root-balls should be thoroughly soaked
prior to installation. Set plant material upright in the planting pit to proper grade and alignment.
Water plants thoroughly midway through backfilling and add Agroform tablets. Water pits again
upon completion of backfilling. No filling should occur around trunks or stems. Do not use frozen
or muddy mixtures for backfilling. Form a ring of soil around the edge of each planting pit to retain
water, and install a 4 to 6 inch layer of mulch around the base of each container plant.
7.6.7 Temporary Irrigation Specifications
While the native species selected for restoration are hardy and typically thrive in northwest
conditions, and the proposed restoration actions are planned in areas with sufficient hydroperiods
for the species selected, some individual plants might perish due to dry conditions. Therefore, a
temporary irrigation system shall be installed to facilitate and help ensure watering will be provided
for the duration of the first two growing seasons, as a minimum, while the native plantings become
established.
Temporary irrigation will be made available for a minimum of the first two growing seasons
depending on plant vitality as determined by the Project Biologist. Weekly irrigation may be required
between June 1 and October 30. The Landscape Contractor will be responsible for ensuring
adequate irrigation is provided to help ensure plant survival. Unusual weather conditions (i.e.
drought or lower than normal precipitation) may warrant extended irrigation for periods beyond
those specified above.
7.6.8 Invasive Plant Control and Removal
Invasive species to be removed include Himalayan blackberry and all listed noxious weeds. Non-
native invasive plant species, specifically Himalayan blackerry are established within the on-site section
of the buffer and require an effective control strategy. To ensure non-native invasive species do not
expand following the restoration actions, non-native invasive plants within the entire restoration area
will be pretreated with a root-killing herbicide approved for use in aquatic sites (i.e., Rodeo) a
minimum of 2 weeks prior to being cleared and grubbed from the restoration area. A second
application is strongly recommended. The pre-treatment with herbicide should occur prior to all
planned restoration actions, and spot treatment of surviving non-native invasive vegetation should be
performed again each fall prior to senescence for a minimum of 5 years. All Himalayan blackberry
patches within the wetlands, ditches, or associated buffers on-site will be fully removed from the site.
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7.7 Conceptual Maintenance & Voluntary Monitoring Plan
Conceptual Maintenance and Voluntary Monitoring Plans are described below in accordance with
RMC 4-3-050.L. The Applicant is committed to compliance with the restoration plan and overall
success of the project. As such, the Applicant will continue to maintain the project, keeping the site
free from of non-native invasive vegetation, trash, and yard waste.
The wetland restoration actions will require continued voluntary monitoring and maintenance to
ensure the actions are successful. Therefore, the buffer restoration area will be voluntarily monitored
for a period of 5 years with formal inspections by a qualified Wetland Scientist. Monitoring events
will be scheduled at the time of construction, 30 days after planting, early in the growing season and
the end of the growing season for Year 1, twice during Year 2, and annually in Years 3 and 5. Please
see monitoring schedule below:
Construction Monitoring – Time of Construction
30 days post planting monitoring – 30 days after completion of restoration planting
Year 1 early in the growing season – Spring
Year 1 end of the growing season – Fall
Year 2 (twice) – Once in the Fall and once in the Spring
Year 3 – Fall
Year 5 – Fall
Monitoring will consist of percent cover measurements at permanent monitoring stations, walk-
through surveys to identify invasive species presence and dead or dying plantings, photographs taken
at fixed photo points, wildlife observations, and general qualitative habitat and wetland function
observations.
To determine percent cover, observed vegetation will be identified and recorded by species and an
estimate of areal cover of dominant species within each sampling plots. Circular sample plots,
approximately 30 feet in diameter (706 square feet), are centered at each monitoring station. The
sample plots encompass the specified wetland areas and terminate at the observed wetland boundary.
Trees and shrubs within each 30-foot diameter monitoring plot are then recorded to species and areal
cover. Herbaceous vegetation is sampled from a 10-foot diameter (78.5 square feet) within each
monitoring plot, established at the same location as the center of each tree and shrub sample plot.
Herbaceous vegetation within each monitoring plot is then recorded to species and includes an
estimate of percent areal cover. A list of observed tree, shrub, and herbaceous species including
percent areal cover of each species and wetland status is included within the monitoring report.
7.8 Reporting
The Project Biologist will prepare an As-Built (Year 0) Report. Any significant changes to the
restoration design will also be presented in the As-Built Report to be submitted within 90 days
following the post-construction inspection. Following each monitoring event, reports will be provided
to the City of Renton within 90 days of each monitoring event, or December 31st of each monitoring
year for annual monitoring reports. As restoration areas are dynamic communities, a fixed number of
monitoring plots is not recommended as this may lead to an inadequate representation of the
restoration area, or cause double sampling. Instead it is recommended the project biologist set the
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number of monitoring plots upon the first monitoring event which will ensure an adequate
representation of site conditions and species.
7.9 Contingency Plan
If annual monitoring results indicate that the voluntary performance standards are not being met, it
may be necessary to implement all or part of the contingency plan. Careful attention to maintenance
is essential in ensuring that problems do not arise. Should any portion of the site fail to meet the
success criteria, a contingency plan will be developed and implemented with regulatory approval. Such
plans are adaptive and should be prepared on a case-by-case basis to reflect any failed restoration
characteristics. Contingency plans can include additional grade control, plant installation, and/or plant
substitutions including type, size, and location.
Contingency/maintenance activities may include, but are not limited to:
1. Using plugs instead of seed for emergent vegetation coverage where seeded material does not
become well-established;
2. Replacing plants lost to vandalism, drought, or disease, as necessary;
3. Replacing any plant species with a 20 percent or greater mortality rate after 2 growing
seasons with the same species or native species of similar form and function;
4. Irrigating the restoration areas only as necessary during dry weather if plants appear to be too
dry, with a minimal quantity of water;
5. Reseeding and/or repair of restoration areas as necessary if erosion or sedimentation occurs;
6. Spot treat non-native invasive plant species;
7. Removing all trash or undesirable debris from the wetland areas as necessary, and
8. Removing additional shrub species to ensure better light penetration to herbaceous
groundcover.
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Chapter 8. Closure
The findings and conclusions documented in this report have been prepared for specific application
to this project. They have been developed in a manner consistent with that level of care and skill
normally exercised by members of the environmental science profession currently practicing under
similar conditions in the area. Our work was also performed in accordance with the terms and
conditions set forth in our proposal. The conclusions and recommendations presented in this report
are professional opinions based on an interpretation of information currently available to us and are
made within the operation scope, budget, and schedule of this project. No warranty, expressed or
implied, is made. In addition, changes in government codes, regulations, or laws may occur. Due to
such changes, our observations and conclusions applicable to this project may need to be revised
wholly or in part.
All wetland boundaries identified by Soundview Consultants LLC are based on conditions present at
the time of the site inspection and considered preliminary until the flagged wetland boundaries are
validated by the jurisdictional agencies. Validation of the wetland boundaries by the regulating agency
provides a certification, usually written, that the wetland boundaries verified are the boundaries that
will be regulated by the agencies until a specific date or until the regulations are modified. Only the
regulating agencies can provide this certification.
As wetlands are dynamic communities affected by both natural and human activities, changes in
wetland boundaries may be expected; therefore, wetland delineations cannot remain valid for an
indefinite period of time. Local agencies typically recognize the validity of wetland delineations for a
period of five years after completion of a wetland delineation report. Development activities on a site
five years after the completion of this wetland delineation report may require revision of the wetland
delineation. In addition, changes in government codes, regulations, or laws may occur. Due of such
changes, our observations and conclusions applicable to this site may need to be revised wholly or in
part.
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Chapter 9. Qualifications
All field inspections, habitat assessments, and supporting documentation, including this Wetland and
Fish and Wildlife Habitat Assessment Report prepared for Latitude Development were prepared by, or
under the direction of Jon Pickett of Soundview Consultants LLC with the assistance of Soundview
Consultants LLC Wetland Scientist Emily Swaim and Staff Scientist, Melissa Cole. Any deviations
and/or alterations to this document must be approved by the aforementioned parties at Soundview
Consultants LLC. Please see Appendix F for a description of professional qualifications.
Jon Pickett Date
Senior Scientist and Environmental Planner
Soundview Consultants LLC
2907 Harborview Drive
Gig Harbor, Washington 98335
(253) 514-8952 Office
(253) 514-8954 Fax
jon@soundviewconsultants.com
October 27, 2017
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Chapter 10. References
Brinson, M. M., 1993. “A Hydrogeomorphic Classification for Wetlands,” Technical Report WRP
DE-4, U.S. Army Engineer Waterways Experiment Station, Vicksburg, MS.
Cooke, S.S. 1997. Wetland Plants of Western Washington. Seattle Audubon Society. Seattle, Washington.
Cowardin, L.M., V. Carter, F. Golet, and E.T. LaRoe. 1979. Classification of Wetlands and Deepwater
Habitats of the United States. U.S. Fish & Wildlife Service. Washington D.C.
Environmental Laboratory. 1987. Corps of Engineers Wetlands Delineation Manual. Technical Report Y-
87-1, US Army Engineer Waterways Experiment Station, Vicksburg, Mississippi.
Federal Geographic Data Committee. 2013. Classification of Wetlands and Deepwater Habitats of the
United States. FGDC-STD-004-2013. Second Edition. Wetlands Subcommittee, Federal
Geographic Data Committee and U.S. Fish and Wildlife Service, Washington, DC.
Granger, T., T. Hruby, A. McMillan, D. Peters, J. Rubey, D. Sheldon, S. Stanley, E. Stockdale. April
2005. Wetlands in Washington State - Volume 2: Guidance for Protecting and Managing Wetlands.
Washington State Department of Ecology. Publication #05-06-008. Olympia, WA.
Hruby, T. 2014. Washington State Wetland Rating System for Western Washington – Revised.
Washington State Department of Ecology Publication # 14-06-029.
King County iMap, 2017. Parcel Map and Topographic Map. Data accessed from website:
http://gismaps.kingcounty.gov/iMap/?center=-13606090%2C6012570&scale=2256.994353&.
Lichvar, R.W., D.L. Banks, W.N. Kirchner, and N.C. Melvin. 2016. The National Wetland Plant List:
2016 wetland ratings. Phytoneuron 2016-30: 1-17. Published 28 April 2016. ISSN 2153 733X
Munsell Color. 2000. Munsell Soil Color Charts. New Windsor, New York.
Natural Resources Conservation Service. 1995. Hydric Soils of Washington. U.S. Department of
Agriculture. Washington D.C.
Natural Resources Conservation Service. 2001. Hydric Soils List: King County, Washington. U.S.
Department of Agriculture. Washington D.C.
Natural Resources Conservation Service. 2016. The Plants Database. Data accessed from website:
http://plants.usda.gov/java/.
Natural Resources Conservation Service (NRCS), 2016. Soil Survey. Data accessed from website:
https://websoilsurvey.sc.egov.usda.gov/App/WebSoilSurvey.aspx.
Null, William, Skinner, Gloria, and Leonard, William. 2000. Wetland Functions Characterization Tool
for Linear Projects. Washington State Department of Transportation.
Soundview Consultants LLC Revised October 27, 2017
1413.0004 East Valley Road - Wetland and Fish and Wildlife Habitat Assessment Page 29
Otak, 2017. BMC Wetland Delineation and Mitigation Review. Redmond, WA.
Sheldon, D., T. Hruby, P. Johnson, K. Harper, A. McMillan, T. Granger, S. Stanley, and E. Stockdale.
March 2005. Wetlands in Washington State - Volume 1: A Synthesis of the Science. Washington
State Department of Ecology. Publication #05-06-006. Olympia, WA.
Snyder, Dale E., Gale, Philip S., and Pringle, Russell F. 1973. Soil Survey of King County Area,
Washington. Soil Conservation Service.
U.S. Army Corps of Engineers. 2010. Regional Supplement to the Corps of Engineers Wetland Delineation
Manual: Western Mountains, Valleys, and Coast Region (Version 2.0), ed. J. S. Wakeley, R. W. Lichvar,
and C. V. Noble. ERDC/EL TR-10-3. Vicksburg, MS: U.S. Army Engineer Research and
Development.
U.S. Fish and Wildlife Service. 2016. National Wetlands Inventory – V2. Data accessed from website:
https://www.fws.gov/wetlands/Data/Mapper.html.
Washington Department of Fish and Wildlife. 2008. Priority Habitat and Species List. Olympia,
Washington. 177 pp.
Washington Natural Heritage Program. Data published 07/24/15. Endangered, threatened, and
sensitive plants of Washington. Washington State Department of Natural Resources, Washington
Natural Heritage Program, Olympia, WA. Data accessed from website:
http://www1.dnr.wa.gov/nhp/refdesk/datasearch/wnhpwetlands.pdf
Washington State Department of Fish and Wildlife. 2017. Priority Habitats and Species. Data
accessed from website: http://apps.wdfw.wa.gov/phsontheweb/.
Washington State Department of Fish and Wildlife. 2016. SalmonScape. Data accessed from website:
http://apps.wdfw.wa.gov/salmonscape/map.html.
Washington State Department of Natural Resources (DNR), 2017. Forest Practices Application
Mapping Tool Stream Typing. Data accessed from website:
https://fortress.wa.gov/dnr/protectiongis/fpamt/.
Washington State Legislator. 2016. Washington Administrative Code (WAC) 222-16-030. DNR
Water typing system. Data accessed from website: http://apps.leg.wa.gov/wac/default.aspx?cite=222-
16-030.
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Appendix A — Methods and Tools
Table A-1. Methods and tools used to prepare the report
Parameter Method or Tool Website Reference
Wetland
Delineation USACE 1987 Wetland
Delineation Manual
USCAE 2010 WMVC
Regional Supplement
http://el.erdc.usace.army.mil/elpu
bs/pdf/wlman87.pdf
Environmental Laboratory. 1987. Corps of Engineers
Wetlands Delineation Manual. Technical Report Y-87-1, US
Army Engineer Waterways Experiment Station, Vicksburg,
Mississippi.
U.S. Army Corps of Engineers. 2010. Regional Supplement to
the Corps of Engineers Wetland Delineation Manual: Western
Mountains, Valleys, and Coast Region (Version 2.0), ed. J. S.
Wakeley, R. W. Lichvar, and C. V. Noble. ERDC/EL TR-
10-3. Vicksburg, MS: U.S. Army Engineer Research and
Development.
NWI https://www.fws.gov/wetlands/D
ata/Mapper.html.
U.S. Fish and Wildlife Service. 2016. National Wetlands
Inventory – V2.
Wetland
Classification
USFWS / Cowardin
Classification System
http://www.fws.gov/nwi/Pubs_R
eports/Class_Manual/class_titlepg.
htm
Cowardin, L. M., V. Carter, F. C. Golet, E. T. LaRoe. 1979.
Classification of wetlands and deepwater habitats of the
United States. Government Printing Office, Washington,
D.C.
Federal Geographic Data Committee. 2013. Classification of
wetlands and deepwater habitats of the United States.
FGDC-STD-004-2013. Second Edition. Wetlands
Subcommittee, Federal Geographic Data Committee and
U.S. Fish and Wildlife Service, Washington, DC.
Hydrogeomorphic
Classification (HGM)
System
http://el.erdc.usace.army.mil/wetla
nds/pdfs/wrpde4.pdf
Brinson, M. M. (1993). “A Hydrogeomorphic Classification
for Wetlands,” Technical Report WRP-DE-4, U.S. Army
Engineer Waterways Experiment Station, Vicksburg, MS.
Wetland Functions
Characterization Tool
for Linear Projects
http://www.wsdot.wa.gov/nr/rdo
nlyres/b92be0d4-9078-4efc-99da-
3c0ea4805e2f/0/bpjtool.pdf
Null, William, Skinner, Gloria, and Leonard, William. 2000.
Wetland Functions Characterization Tool for Linear
Projects. Washington State Department of Transportation.
Wetland Rating Washington State
Wetland Rating System
https://fortress.wa.gov/ecy/public
ations/SummaryPages/1406029.ht
ml
Hruby. 2014. Washington State Wetland Rating System for
Western Washington –Revised. Publication # 14-06-029.
City of Renton
Municipal Code,
Wetlands
http://www.codepublishing.com/
WA/Renton/
Renton Municipal Code 4-3-050.
Drainage
Classification
Department of Natural
Resources (DNR)
Water Typing System
Forest Practices Water Typing:
http://www.stage.dnr.wa.gov/fore
stpractices/watertyping/
WAC 222-16-030:
http://apps.leg.wa.gov/WAC/defa
ult.aspx?cite=222-16-030
Water Type Mapping:
http://www3.wadnr.gov/dnrapp5/
website/fpars/viewer.htm
Washington Administrative Code (WAC) 222-16-030. DNR
Water typing system.
City of Renton Stream
Classification
http://www.codepublishing.com/
WA/Renton/
Renton Municipal Code 4-3-050.G.2
Plants USDA Plant Database http://plants.usda.gov/ Website (see Appendix A)
Wetland Plants of
Western Washington
http://soundnativeplants.com/wp-
content/uploads/References_and_
Resources.pdf
http://wetland-
plants.usace.army.mil/nwpl_static/
Cooke, S.S. 1997. Wetland Plants of Western Washington.
Seattle Audubon Society. Seattle, Washington.
Lichvar, R.W., D.L. Banks, W.N. Kirchner, and N.C. Melvin.
2016. The National Wetland Plant List: 2016 wetland ratings.
Phytoneuron 2016-30: 1-17. Published 28 April 2016. ISSN
2153 733X
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Parameter Method or Tool Website Reference
2016 Regional Wetland
Plant List
data/DOC/lists_2016/Regions/pd
f/reg_WMVC_2016v1.pdf
Soils Data NRCS Soil Survey http://websoilsurvey.nrcs.usda.gov
/app/WebSoilSurvey.aspx
Snyder, Dale E., Gale, Philip S., and Pringle, Russell F. 1973.
Soil Survey of King County Area, Washington. Soil
Conservation Service.
Soil Color Charts Munsell Color. 2000. Munsell Soil Color Charts. New
Windsor, New York.
Hydric Soils Data King County Hydric
Soils List
http://www.wa.nrcs.usda.gov/tech
nical/soils/hydric_lists/hydsoil-wa-
653.pdf
Natural Resources Conservation Service. 1995. Hydric Soils
of Washington. U.S. Department of Agriculture.
Washington D.C.
Natural Resources Conservation Service. 2001. Hydric Soils
List: King County, Washington. U.S. Department of
Agriculture. Washington D.C.
Threatened and
Endangered
Species
Washington Natural
Heritage Program
http://www1.dnr.wa.gov/nhp/ref
desk/datasearch/wnhpwetlands.pd
f
Washington Natural Heritage Program (Data published
07/24/15). Endangered, threatened, and sensitive plants of
Washington. Washington State Department of Natural
Resources, Washington Natural Heritage Program, Olympia,
WA
Washington Priority
Habitats and Species
http://wdfw.wa.gov/hab/phspage.
htm
Priority Habitats and Species (PHS) Program (Data
requested 02/01/17). Map of priority habitats and species in
project vicinity. Washington Department of Fish and
Wildlife.
Washington
SalmonScape
http://apps.wdfw.wa.gov/salmons
cape/map.html
SalmonScape (Data requested on 11/30/16). Washington
State Department of Fish and Wildlife.
NOAA fisheries species
list and maps
http://www.nwr.noaa.gov/ESA-
Salmon-Listings/Salmon-
Populations/Index.cfm
and
http://www.nmfs.noaa.gov/pr/sp
ecies/
Website
Species of Local
Importance
WDFW GIS Data http://wdfw.wa.gov/mapping/sal
monscape/
and
http://apps.wdfw.wa.gov/phsonth
eweb/.
Website
Report
Preparation
King County iMap. http://gismaps.kingcounty.gov/iM
ap/
Interactive Mapping Tool
Renton Municipal Code http://www.codepublishing.com/
WA/Renton/
Website
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Appendix B – Background Information
This Appendix includes a King County Parcel Map (B1, King County Hydrography and Topographic
Map (B2), Renton Wetlands, Streams, and Flood Zones Map (B3), USFWS NWI map (B4), NRCS
Soil Survey map (B5), DNR Stream Typing map (B6), WDFW SalmonScape map (B7), WDFW PHS
map (B8) and Prior Accepted Wetland Rating and Application (B9).
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Appendix B1. King County Parcel Map
Subject Property
(Approximate)
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Appendix B2. King County Hydrography and Topographic Map
Subject Property
(Approximate)
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Appendix B3. Renton Wetlands, Streams, and Flood Zones Map
Subject Property
(Approximate)
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Appendix B4. USFWS NWI Map
Subject Property
(Approximate)
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Appendix B5. NRCS Soil Survey Map
Subject Property
(Approximate)
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Appendix B6. DNR Stream Typing Map
Subject Property
(Approximate)
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Appendix B7. WDFW SalmonScape Map
Subject Property
(Approximate)
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Appendix B8. WDFW PHS Map
Subject Property
(Approximate)
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Appendix C – Site Plans
EAST VALLEY ROADEAST VALLEY ROAD56' REDUCEDWETLAND BUFFER15' BUILDING SETBACK75' STANDARDWETLAND BUFFER56'OFF-SITEWETLAND AAPPROX. 20,001 SF(NOT DELINEATED)STORMWATERPONDS R - 1 6 7OFF-SITEWETLAND AAPPROX.BOUNDARY(NOT DELINEATED)E A S T V A L L E Y R O A DWETLAND ACATEGORY III(8,057 SF ON-SITE)PROPERTY BOUNDARYEXISTINGOFFICEEXISTINGLUMBERWAREHOUSEEXISTINGTOWING OFFICEEXISTINGTOW SHOPEXISTINGSHOPEXISTINGLUMBER OFFICEPROPERTY BOUNDARYEAST VALLEY ROAD - EXISTING CONDITIONS 1SCALE: SEE GRAPHICSOURCES:PRELIMINARYINFORMATION ONLYNOT FOR CONSTRUCTIONSOUNDVIEW CONSULTANTS, LLC. ASSUMESNO LIABILITY OR RESPONSIBILITY FORCONSTRUCTION, IMPROVEMENTS, ORESTIMATES BASED ON THIS PLAN SETEAST VALLEY ROAD
2960 EAST VALLEY ROAD
RENTON, WASHINGTON 98057
THE NE 1 4 OF SECTION 30, TOWNSHIP 23N,
RANGE 05E, W.M.DATE: 10/27/2017BY: DSJOB: 1413.0004SHEET OF 4
PROPERTY BOUNDARYWETLAND APROPOSED BUFFERRESTORATION AREA(54,505 SF)15' BUILDING SETBACK75' STANDARDWETLAND BUFFER56' REDUCEDWETLAND BUFFERNOTE:SEE SHEET 4 FOR DETAILS, PLANT SCHEDULE ANDADDITIONAL PLANTING INFORMATION,OFF-SITEWETLAND AAPPROX. 20,001 SF(NOT DELINEATED)STORMWATERPONDE A S T V A L L E Y R O A DPROTECTEXISTING TREETO REMAIN (TYP.)WETLAND ACATEGORY III(8,057 SF ON-SITE)PROPERTY BOUNDARYHUMMOCKS TO PRESERVEEXISTING TREES TOREMAINLARGE WOODYDEBRIS (TYP.)EAST VALLEY ROAD - PROPOSED PROJECTSOURCES:PRELIMINARYINFORMATION ONLYNOT FOR CONSTRUCTIONSOUNDVIEW CONSULTANTS, LLC. ASSUMESNO LIABILITY OR RESPONSIBILITY FORCONSTRUCTION, IMPROVEMENTS, ORESTIMATES BASED ON THIS PLAN SET 2SCALE: SEE GRAPHICEAST VALLEY ROAD
2960 EAST VALLEY ROAD
RENTON, WASHINGTON 98057
THE NE 1 4 OF SECTION 30, TOWNSHIP 23N,
RANGE 05E, W.M.DATE: 10/27/2017BY: DSJOB: 1413.0004SHEET OF 4
EAST VALLEY ROAD - PLANT DETAILS 3SOURCES:SCALE: 1" = 20' - 0"WETLAND BUFFER RESTORATION SAMPLE PLANTING PLANPLANT SCHEDULENOTES:1 - PROTECT EXISTING TREES TO REMAIN.2 - PLANT TREES AND SHRUBS IN GROUPINGS OF 3 TO 11 PLANTS.3 - ALTHOUGH PLANTS MAY BE STAKED OR LAID OUT IN REGULAR TRIANGULAR SPACING PRIOR TOPLANTING, ADJUST PLANT LAYOUT AND GROUPINGS BEFORE PLANTING TO AVOID STRAIGHT LINESAND TO PROVIDE NATURAL-LOOKING PLANT COMMUNITIES.PROPOSED HUMMOCK WITH EXISTINGAND PROPOSED TREES AND SHRUBS56' REDUCEDWETLAND BUFFERLARGEWOODYDEBRISWETLAND BUFFER SEEDMIX THROUGHOUT BUFFERPROPERTY BOUNDARYWETLAND APRELIMINARYINFORMATION ONLYNOT FOR CONSTRUCTIONSOUNDVIEW CONSULTANTS, LLC. ASSUMESNO LIABILITY OR RESPONSIBILITY FORCONSTRUCTION, IMPROVEMENTS, ORESTIMATES BASED ON THIS PLAN SETEAST VALLEY ROAD
2960 EAST VALLEY ROAD
RENTON, WASHINGTON 98057
THE NE 1 4 OF SECTION 30, TOWNSHIP 23N,
RANGE 05E, W.M.DATE: 10/27/2017BY: DSJOB: 1413.0004SHEET OF 4TREES (NOT TO SCALE)LEGENDSHRUBS (NOT TO SCALE)RED ALDERBIG LEAF MAPLEBLACK COTTONWOODDOUGLAS FIRWESTERN HEMLOCKOREGON ASHCASCARASITKA WILLOWSCOULER'S WILLOWPACIFIC WILLOWHOOKER'S WILLOWSERVICE BERRYWESTERN HAZLENUTVINE MAPLEWESTERN CRABAPPLERED-FLOWERING CURRANTSCALE: SEE GRAPHIC
EAST VALLEY ROAD - SITE DETAILSSOURCES:NOT TO SCALEHUMMOCK DETAIL (TYPICAL)HUMMOCKNOTES:1.PLANT SHRUBS OF THE SAMESPECIES IN GROUPS OF 3 to 6 ASAPPROPRIATE.2.EXCAVATE PIT TO FULL DEPTH OFROOT MASS AND CANOPYDIAMETER. SPREAD ROOTS TOFULL WIDTH OF CANOPY.3.MIDWAY THROUGH PLANTING ADDAGROFORM TABLET AND WATERTHOROUGHLY.4.BACKFILL TO BE COMPACTEDUSING WATER ONLY.5.WATER IMMEDIATELY AFTERINSTALLATION.LOCATOR LATH (IF SPECIFIED)3 to 4 INCH LAYER OF MULCHNOT TO SCALETREE & SHRUB PLANTING DETAIL (TYPICAL)NOT TO SCALEANCHOR LARGE WOODY DEBRIS WITHDUCK-BILL ANCHOR WITH GALVANIZED CABLEOR APPROVED EQUIVALENT TO BEDETERMINED BY PROJECT ENGINEER.LARGE WOODY DEBRIS DETAILAT STREAM BANK (TYPICAL)BANKFULL WIDTH 4SCALE: SEE GRAPHICEAST VALLEY ROAD
2960 EAST VALLEY ROAD
RENTON, WASHINGTON 98057
THE NE 1 4 OF SECTION 30, TOWNSHIP 23N,
RANGE 05E, W.M.DATE: 10/27/2017BY: DSJOB: 1413.0004SHEET OF 4
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Appendix D – Historical Aerial Photographs
King County
EAST VALLEY ROAD - 1936
¢
0 250 500125 Feet
DATE:
JOB:
BY:
SCALE:
FIGURE NO.
9/22/2017
1413.0004
DLS
1
2960 E VALLEY RD.RENTON, WA 98057
KING COUNTY PARCEL NUMBERS:3023059096, 3023059098, 3023059099, and 3023059091
EAST VALLEY ROAD
EAST VALLEY ROAD - 1940
¢
0 250 500125 Feet
DATE:
JOB:
BY:
SCALE:
FIGURE NO.
9/22/2017
1413.0004
DLS
2
2960 E VALLEY RD.RENTON, WA 98057
KING COUNTY PARCEL NUMBERS:3023059096, 3023059098, 3023059099, and 3023059091
EAST VALLEY ROAD
EAST VALLEY ROAD - 1964
¢
0 250 500125 Feet
DATE:
JOB:
BY:
SCALE:
FIGURE NO.
9/22/2017
1413.0004
DLS
3
2960 E VALLEY RD.RENTON, WA 98057
KING COUNTY PARCEL NUMBERS:3023059096, 3023059098, 3023059099, and 3023059091
EAST VALLEY ROAD
EAST VALLEY ROAD - 1968
¢
0 250 500125 Feet
DATE:
JOB:
BY:
SCALE:
FIGURE NO.
9/22/2017
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DLS
4
2960 E VALLEY RD.RENTON, WA 98057
KING COUNTY PARCEL NUMBERS:3023059096, 3023059098, 3023059099, and 3023059091
EAST VALLEY ROAD
EAST VALLEY ROAD - 1980
¢
0 250 500125 Feet
DATE:
JOB:
BY:
SCALE:
FIGURE NO.
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DLS
5
2960 E VALLEY RD.RENTON, WA 98057
KING COUNTY PARCEL NUMBERS:3023059096, 3023059098, 3023059099, and 3023059091
EAST VALLEY ROAD
King County, Washington State Department of Natural Resources
EAST VALLEY ROAD - 1998
¢
0 250 500125 Feet
DATE:
JOB:
BY:
SCALE:
FIGURE NO.
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1413.0004
DLS
6
2960 E VALLEY RD.RENTON, WA 98057
KING COUNTY PARCEL NUMBERS:3023059096, 3023059098, 3023059099, and 3023059091
EAST VALLEY ROAD
King County, Space Imaging, Inc., Pacific Meridian Resources
EAST VALLEY ROAD - 2000
¢
0 250 500125 Feet
DATE:
JOB:
BY:
SCALE:
FIGURE NO.
9/22/2017
1413.0004
DLS
7
2960 E VALLEY RD.RENTON, WA 98057
KING COUNTY PARCEL NUMBERS:3023059096, 3023059098, 3023059099, and 3023059091
EAST VALLEY ROAD
King County, Aerials Express
EAST VALLEY ROAD - 2005
¢
0 250 500125 Feet
DATE:
JOB:
BY:
SCALE:
FIGURE NO.
9/22/2017
1413.0004
DLS
8
2960 E VALLEY RD.RENTON, WA 98057
KING COUNTY PARCEL NUMBERS:3023059096, 3023059098, 3023059099, and 3023059091
EAST VALLEY ROAD
King County, Pictometry
EAST VALLEY ROAD - 2009
¢
0 250 500125 Feet
DATE:
JOB:
BY:
SCALE:
FIGURE NO.
9/22/2017
1413.0004
DLS
9
2960 E VALLEY RD.RENTON, WA 98057
KING COUNTY PARCEL NUMBERS:3023059096, 3023059098, 3023059099, and 3023059091
EAST VALLEY ROAD
King County
EAST VALLEY ROAD - 2012
¢
0 250 500125 Feet
DATE:
JOB:
BY:
SCALE:
FIGURE NO.
9/22/2017
1413.0004
DLS
10
2960 E VALLEY RD.RENTON, WA 98057
KING COUNTY PARCEL NUMBERS:3023059096, 3023059098, 3023059099, and 3023059091
EAST VALLEY ROAD
Pictometry International Corp. 2015
EAST VALLEY ROAD - 2015
¢
0 250 500125 Feet
DATE:
JOB:
BY:
SCALE:
FIGURE NO.
9/22/2017
1413.0004
DLS
11
2960 E VALLEY RD.RENTON, WA 98057
KING COUNTY PARCEL NUMBERS:3023059096, 3023059098, 3023059099, and 3023059091
EAST VALLEY ROAD
Soundview Consultants LLC Revised October 27, 2017
1413.0004 – East Valley Road - Wetland and Fish and Wildlife Habitat Assessment
Appendix E – Data Forms
US Army Corps of Engineers Western Mountains, Valleys, and Coast – Version 2.0
WETLAND DETERMINATION DATA FORM – Western Mountains, Valleys, and Coast Region
Project/Site: 1413.0004 East Valley Road City/County: Renton/King Sampling Date:12-15-2016
Applicant/Owner: Latitude Development- Donovan Brothers State: WA Sampling Point: DP-1
Investigator(s): J. Pickett and E. Swaim Section, Township, Range: T23N, R5E, Section 30
Landform (hillslope, terrace, etc.): slope Local relief (concave, convex, none): Concave Slope (%): 3
Subregion (LRR): A2 Lat: 47.45495 Long: -122.21672 Datum: WGS 84
Soil Map Unit Name: Urban Land / Tukwila Muck (inaccurately mapped) NWI classification: N/A
Are climatic / hydrologic conditions on the site typical for this time of year? Yes No (If no, explain in Remarks.)
Are Vegetation x, Soil x, or Hydrology x significantly disturbed? Are “Normal Circumstances” present? Yes No
Are Vegetation , Soil , or Hydrology naturally problematic? (If needed, explain any answers in Remarks.)
SUMMARY OF FINDINGS – Attach site map showing sampling point locations, transects, important features, etc.
Hydrophytic Vegetation Present? Yes No
Hydric Soil Present? Yes No
Wetland Hydrology Present? Yes No
Is the Sampled Area
within a Wetland? Yes No
Remarks: All three wetland criteria observed. Area highly developed and heavily disturbed from adjacent land uses. Precipitation 144 percent of
normal for the water year to the date of the site visit.
VEGETATION – Use scientific names of plants.
Absolute Dominant Indicator
Tree Stratum (Plot size: 30 ft) % Cover Species? Status
1. Salix lucida 50 Y FACW
2. Alnus rubra 30 Y FAC
3.
4.
80 = Total Cover
Sapling/Shrub Stratum (Plot size: 15 ft)
1. Rubus armeniacus 25 Y FAC
2. Cornus alba 5 N FACW
3.
4.
5.
30 = Total Cover
Herb Stratum (Plot size: 5 ft)
1. Polystichum munitum 1 Y FACU
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
1 = Total Cover
Woody Vine Stratum (Plot size: 30 ft)
1.
2.
= Total Cover
% Bare Ground in Herb Stratum 99
Dominance Test worksheet:
Number of Dominant Species
That Are OBL, FACW, or FAC: 3 (A)
Total Number of Dominant
Species Across All Strata: 4 (B)
Percent of Dominant Species
That Are OBL, FACW, or FAC: 75 (A/B)
Prevalence Index worksheet:
Total % Cover of: Multiply by:
OBL species x 1 =
FACW species x 2 =
FAC species x 3 =
FACU species x 4 =
UPL species x 5 =
Column Totals: (A) (B)
Prevalence Index = B/A =
Hydrophytic Vegetation Indicators:
Rapid Test for Hydrophytic Vegetation
Dominance Test is >50%
Prevalence Index is ≤3.01
Morphological Adaptations1 (Provide supporting
data in Remarks or on a separate sheet)
Wetland Non-Vascular Plants1
Problematic Hydrophytic Vegetation1 (Explain)
1Indicators of hydric soil and wetland hydrology must
be present, unless disturbed or problematic.
Hydrophytic
Vegetation
Present? Yes No
Remarks: Hydrophytic vegetation criteria observed. Bare ground observed due to permanent ponding.
US Army Corps of Engineers Western Mountains, Valleys, and Coast – Version 2.0
SOIL
Sampling Point: DP-1
Profile Description: (Describe to the depth needed to document the indicator or confirm the absence of indicators.)
Depth Matrix Redox Features
(inches) Color (moist) % Color (moist) % Type1 Loc2 Texture Remarks
0-5 2.5Y 2.5/1 100 - - - - GSL/FILL Fill/Gravel
1Type: C=Concentration, D=Depletion, RM=Reduced Matrix, CS=Covered or Coated Sand Grains. 2Location: PL=Pore Lining, M=Matrix.
Hydric Soil Indicators: (Applicable to all LRRs, unless otherwise noted.) Indicators for Problematic Hydric Soils3:
Histosol (A1) Sandy Redox (S5) 2 cm Muck (A10)
Histic Epipedon (A2) Stripped Matrix (S6) Red Parent Material (TF2)
Black Histic (A3) Loamy Mucky Mineral (F1) (except MLRA 1) Very Shallow Dark Surface (TF12)
Hydrogen Sulfide (A4) Loamy Gleyed Matrix (F2) Other (Explain in Remarks)
Depleted Below Dark Surface (A11) Depleted Matrix (F3)
Thick Dark Surface (A12) Redox Dark Surface (F6) 3Indicators of hydrophytic vegetation and
Sandy Mucky Mineral (S1) Depleted Dark Surface (F7) wetland hydrology must be present,
Sandy Gleyed Matrix (S4) Redox Depressions (F8) unless disturbed or problematic.
Restrictive Layer (if present):
Type:________________________________
Depth (inches):________________________ Hydric Soil Present? Yes No
Remarks: Hydric soil indicator A4 observed- Hydrogen sulfide aroma.
HYDROLOGY
Wetland Hydrology Indicators:
Primary Indicators (minimum of one required; check all that apply) Secondary Indicators (2 or more required)
Surface Water (A1) Water-Stained Leaves (B9) (except MLRA Water-Stained Leaves (B9) (MLRA 1, 2,
High Water Table (A2) 1, 2, 4A, and 4B) 4A, and 4B)
Saturation (A3) Salt Crust (B11) Drainage Patterns (B10)
Water Marks (B1) Aquatic Invertebrates (B13) Dry-Season Water Table (C2)
Sediment Deposits (B2) Hydrogen Sulfide Odor (C1) Saturation Visible on Aerial Imagery (C9)
Drift Deposits (B3) Oxidized Rhizospheres along Living Roots (C3) Geomorphic Position (D2)
Algal Mat or Crust (B4) Presence of Reduced Iron (C4) Shallow Aquitard (D3)
Iron Deposits (B5) Recent Iron Reduction in Tilled Soils (C6) FAC-Neutral Test (D5)
Surface Soil Cracks (B6) Stunted or Stressed Plants (D1) (LRR A) Raised Ant Mounds (D6) (LRR A)
Inundation Visible on Aerial Imagery (B7) Other (Explain in Remarks) Frost-Heave Hummocks (D7)
Sparsely Vegetated Concave Surface (B8)
Field Observations:
Surface Water Present? Yes No Depth (inches): +12
Water Table Present? Yes No Depth (inches): surface
Saturation Present? Yes No Depth (inches): surface
(includes capillary fringe)
Wetland Hydrology Present? Yes No
Describe Recorded Data (stream gauge, monitoring well, aerial photos, previous inspections), if available: 144 percent of normal for the water year to
the date of the site vist (10/01/2016-12/15/16).
Remarks: Primary hydrologic indicators A1-A3 and C1 observed as well as secondary hydrologic indicators B9, B10, D2, and D5.
GRAVEL / FILL
5 inches below ground surface
US Army Corps of Engineers Western Mountains, Valleys, and Coast – Version 2.0
WETLAND DETERMINATION DATA FORM – Western Mountains, Valleys, and Coast Region
Project/Site: 1413.0004 East Valley Road City/County: Renton/King Sampling Date:12-15-2016
Applicant/Owner: Latitude Development- Donovan Brothers State: WA Sampling Point: DP-2
Investigator(s): J. Pickett and E. Swaim Section, Township, Range: T23N, R5E, Section 30
Landform (hillslope, terrace, etc.): Developed terrace Local relief (concave, convex, none): None Slope (%): 0
Subregion (LRR): A2 Lat: 47.454741 Long: -122.216764 Datum: WGS 84
Soil Map Unit Name: Urban Land NWI classification: N/A
Are climatic / hydrologic conditions on the site typical for this time of year? Yes No (If no, explain in Remarks.)
Are Vegetation x, Soil x, or Hydrology significantly disturbed? Are “Normal Circumstances” present? Yes No
Are Vegetation , Soil , or Hydrology naturally problematic? (If needed, explain any answers in Remarks.)
SUMMARY OF FINDINGS – Attach site map showing sampling point locations, transects, important features, etc.
Hydrophytic Vegetation Present? Yes No
Hydric Soil Present? Yes No
Wetland Hydrology Present? Yes No
Is the Sampled Area
within a Wetland? Yes No
Remarks: No wetland criteria observed in the developed location of DP-2. Area highly developed and heavily disturbed from adjacent land uses.
Precipitation 144 percent of normal for the water year to the date of the site visit. Disturbance noted due to development.
VEGETATION – Use scientific names of plants.
Absolute Dominant Indicator
Tree Stratum (Plot size: 30 ft) % Cover Species? Status
1.
2.
3.
4.
= Total Cover
Sapling/Shrub Stratum (Plot size: 15 ft)
1.
2.
3.
4.
5.
= Total Cover
Herb Stratum (Plot size: 5 ft)
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
= Total Cover
Woody Vine Stratum (Plot size: 30 ft)
1.
2.
= Total Cover
% Bare Ground in Herb Stratum 0
Dominance Test worksheet:
Number of Dominant Species
That Are OBL, FACW, or FAC: (A)
Total Number of Dominant
Species Across All Strata: (B)
Percent of Dominant Species
That Are OBL, FACW, or FAC: (A/B)
Prevalence Index worksheet:
Total % Cover of: Multiply by:
OBL species x 1 =
FACW species x 2 =
FAC species x 3 =
FACU species x 4 =
UPL species x 5 =
Column Totals: (A) (B)
Prevalence Index = B/A =
Hydrophytic Vegetation Indicators:
Rapid Test for Hydrophytic Vegetation
Dominance Test is >50%
Prevalence Index is ≤3.01
Morphological Adaptations1 (Provide supporting
data in Remarks or on a separate sheet)
Wetland Non-Vascular Plants1
Problematic Hydrophytic Vegetation1 (Explain)
1Indicators of hydric soil and wetland hydrology must
be present, unless disturbed or problematic.
Hydrophytic
Vegetation
Present? Yes No
Remarks: No vegetation located in area of data plot. Located in area of gravel fill development.
US Army Corps of Engineers Western Mountains, Valleys, and Coast – Version 2.0
SOIL Sampling Point: DP-2
Profile Description: (Describe to the depth needed to document the indicator or confirm the absence of indicators.)
Depth Matrix Redox Features
(inches) Color (moist) % Color (moist) % Type1 Loc2 Texture Remarks
- - - - - - - GSL/FILL Fill/Gravel
1Type: C=Concentration, D=Depletion, RM=Reduced Matrix, CS=Covered or Coated Sand Grains. 2Location: PL=Pore Lining, M=Matrix.
Hydric Soil Indicators: (Applicable to all LRRs, unless otherwise noted.) Indicators for Problematic Hydric Soils3:
Histosol (A1) Sandy Redox (S5) 2 cm Muck (A10)
Histic Epipedon (A2) Stripped Matrix (S6) Red Parent Material (TF2)
Black Histic (A3) Loamy Mucky Mineral (F1) (except MLRA 1) Very Shallow Dark Surface (TF12)
Hydrogen Sulfide (A4) Loamy Gleyed Matrix (F2) Other (Explain in Remarks)
Depleted Below Dark Surface (A11) Depleted Matrix (F3)
Thick Dark Surface (A12) Redox Dark Surface (F6) 3Indicators of hydrophytic vegetation and
Sandy Mucky Mineral (S1) Depleted Dark Surface (F7) wetland hydrology must be present,
Sandy Gleyed Matrix (S4) Redox Depressions (F8) unless disturbed or problematic.
Restrictive Layer (if present):
Type:________________________________
Depth (inches):________________________
Hydric Soil Present? Yes No
Remarks: No hydric soil indicators observed. Fill and gravel are not actual soil textures. Hard and compacted gravel fill. Not applicable to soil testing.
HYDROLOGY
Wetland Hydrology Indicators:
Primary Indicators (minimum of one required; check all that apply) Secondary Indicators (2 or more required)
Surface Water (A1) Water-Stained Leaves (B9) (except MLRA Water-Stained Leaves (B9) (MLRA 1, 2,
High Water Table (A2) 1, 2, 4A, and 4B) 4A, and 4B)
Saturation (A3) Salt Crust (B11) Drainage Patterns (B10)
Water Marks (B1) Aquatic Invertebrates (B13) Dry-Season Water Table (C2)
Sediment Deposits (B2) Hydrogen Sulfide Odor (C1) Saturation Visible on Aerial Imagery (C9)
Drift Deposits (B3) Oxidized Rhizospheres along Living Roots (C3) Geomorphic Position (D2)
Algal Mat or Crust (B4) Presence of Reduced Iron (C4) Shallow Aquitard (D3)
Iron Deposits (B5) Recent Iron Reduction in Tilled Soils (C6) FAC-Neutral Test (D5)
Surface Soil Cracks (B6) Stunted or Stressed Plants (D1) (LRR A) Raised Ant Mounds (D6) (LRR A)
Inundation Visible on Aerial Imagery (B7) Other (Explain in Remarks) Frost-Heave Hummocks (D7)
Sparsely Vegetated Concave Surface (B8)
Field Observations:
Surface Water Present? Yes No Depth (inches):
Water Table Present? Yes No Depth (inches):
Saturation Present? Yes No Depth (inches):
(includes capillary fringe)
Wetland Hydrology Present? Yes No
Describe Recorded Data (stream gauge, monitoring well, aerial photos, previous inspections), if available: 144 percent of normal for the water year to
the date of the site vist (10/01/2016-12/15/16) according to the SeaTac Airport NOAA data.
Remarks: No primary nor secondary indicators of wetland hydrology observed.
Soundview Consultants LLC Revised October 27, 2017
1413.0004 – East Valley Road - Wetland and Fish and Wildlife Habitat Assessment
Appendix F – Wetland Rating Form
Wetland name or number A
Wetland Rating System for Western WA: 2014 Update
Rating Form - Effective January 1, 2015 1 WSDOT Adapted Form - March 2, 2015
Name of wetland (or ID #):Date of site visit:12/15/2016
Rated by Trained by Ecology? Yes No Date of training 3/31/2016
HGM Class used for rating Wetland has multiple HGM classes? Yes No
NOTE: Form is not complete with out the figures requested (figures can be combined ).
Source of base aerial photo/map
OVERALL WETLAND CATEGORY III (based on functions or special characteristics )
1. Category of wetland based on FUNCTIONS
Category I - Total score = 23 - 27 Score for each
Category II - Total score = 20 - 22 function based
X Category III - Total score = 16 - 19 on three
Category IV - Total score = 9 - 15 ratings
(order of ratings
is not
important )
L M 9 = H, H, H
H L 8 = H, H, M
M L Total 7 = H, H, L
7 = H, M, M
6 = H, M, L
6 = M, M, M
5 = H, L, L
5 = M, M, L
4 = M, L, L
3 = L, L, L
2. Category based on SPECIAL CHARACTERISTICS of wetland
XNone of the above
Coastal Lagoon
Interdunal
Value
Score Based on
Ratings 6 6 4 16
H
CHARACTERISTIC Category
Estuarine
Wetland of High Conservation Value
Bog
Mature Forest
Old Growth Forest
Depressional & Flats
RATING SUMMARY – Western Washington
List appropriate rating (H, M, L)
HydrologicImproving
Water Quality
LSite Potential
Landscape Potential
Habitat
M
FUNCTION
Wetland A 1413.0004
J. Downs and E.Swaim
Google Earth 2016
Wetland name or number A
Wetland Rating System for Western WA: 2014 Update
Rating Form - Effective January 1, 2015 2 WSDOT Adapted Form - March 2, 2015
Wetland name or number A
Wetland Rating System for Western WA: 2014 Update
Rating Form - Effective January 1, 2015 3 WSDOT Adapted Form - March 2, 2015
Maps and Figures required to answer questions correctly for
Western Washington
Depressional Wetlands
Map of: Figure #
Cowardin plant classes
Hydroperiods
Location of outlet (can be added to map of hydroperiods )
Boundary of area within 150 ft of the wetland (can be added to another figure )
Map of the contributing basin
1 km Polygon: Area that extends 1 km from entire wetland edge - including
polygons for accessible habitat and undisturbed habitat
Screen capture of map of 303(d) listed waters in basin (from Ecology website)
Screen capture of list of TMDLs for WRIA in which unit is found (from web)
Riverine Wetlands
Map of: Figure #
Cowardin plant classes
Hydroperiods
Ponded depressions
Boundary of area within 150 ft of the wetland (can be added to another figure )
Plant cover of trees, shrubs, and herbaceous plants
Width of unit vs. width of stream (can be added to another figure )
Map of the contributing basin
1 km Polygon: Area that extends 1 km from entire wetland edge - including
polygons for accessible habitat and undisturbed habitat
Screen capture of map of 303(d) listed waters in basin (from Ecology website)
Screen capture of list of TMDLs for WRIA in which unit is found (from web)
Lake Fringe Wetlands
Map of: Figure #
Cowardin plant classes
Plant cover of trees, shrubs, and herbaceous plants
Boundary of area within 150 ft of the wetland (can be added to another figure )
1 km Polygon: Area that extends 1 km from entire wetland edge - including
polygons for accessible habitat and undisturbed habitat
Screen capture of map of 303(d) listed waters in basin (from Ecology website)
Screen capture of list of TMDLs for WRIA in which unit is found (from web)
Slope Wetlands
Map of: Figure #
Cowardin plant classes
Hydroperiods
Plant cover of dense trees, shrubs, and herbaceous plants
Plant cover of dense, rigid trees, shrubs, and herbaceous plants
(can be added to another figure )
Boundary of area within 150 ft of the wetland (can be added to another figure )
1 km Polygon: Area that extends 1 km from entire wetland edge - including
polygons for accessible habitat and undisturbed habitat
To answer questions:
D 1.3, H 1.1, H 1.4
D 1.4, H 1.2
D 1.1, D 4.1
D 2.2, D 5.2
D 4.3, D 5.3
H 2.1, H 2.2, H 2.3
D 3.1, D 3.2
D 3.3
To answer questions:
H 1.1, H 1.4
H 1.2
R 1.1
R 2.4
R 1.2, R 4.2
R 4.1
R 2.2, R 2.3, R 5.2
H 2.1, H 2.2, H 2.3
L 1.2
L 2.2
L 3.1, L 3.2
L 3.3
H 2.1, H 2.2, H 2.3
R 3.1
R 3.2, R 3.3
To answer questions:
L 1.1, L 4.1, H 1.1, H 1.4
S 4.1
S 2.1, S 5.1
To answer questions:
H 1.1, H 1.4
H 1.2
S 1.3
H 2.1, H 2.2, H 2.3
Wetland name or number A
Wetland Rating System for Western WA: 2014 Update
Rating Form - Effective January 1, 2015 4 WSDOT Adapted Form - March 2, 2015
Screen capture of map of 303(d) listed waters in basin (from Ecology website)
Screen capture of list of TMDLs for WRIA in which unit is found (from web)
S 3.1, S 3.2
S 3.3
Wetland name or number A
Wetland Rating System for Western WA: 2014 Update
Rating Form - Effective January 1, 2015 5 WSDOT Adapted Form - March 2, 2015
For questions 1 -7, the criteria described must apply to the entire unit being rated.
1. Are the water levels in the entire unit usually controlled by tides except during floods?
NO - go to 2 YES - the wetland class is Tidal Fringe - go to 1.1
1.1 Is the salinity of the water during periods of annual low flow below 0.5 ppt (parts per thousand)?
NO - Saltwater Tidal Fringe (Estuarine)YES - Freshwater Tidal Fringe
NO - go to 3 YES - The wetland class is Flats
If your wetland can be classified as a Flats wetland, use the form for Depressional wetlands.
3. Does the entire wetland unit meet all of the following criteria?
NO - go to 4 YES - The wetland class is Lake Fringe (Lacustrine Fringe)
4. Does the entire wetland unit meet all of the following criteria?
The wetland is on a slope (slope can be very gradual ),
The water leaves the wetland without being impounded.
NO - go to 5 YES - The wetland class is Slope
5. Does the entire wetland unit meet all of the following criteria?
The overbank flooding occurs at least once every 2 years.
NO - go to 6 YES - The wetland class is Riverine
NOTE: The Riverine unit can contain depressions that are filled with water when the river is not flooding.
If hydrologic criteria listed in each question do not apply to the entire unit being rated, you probably have a unit
with multiple HGM classes. In this case, identify which hydrologic criteria in questions 1 - 7 apply, and go to
Question 8.
At least 30% of the open water area is deeper than 6.6 ft (2 m).
HGM Classification of Wetland in Western Washington
If your wetland can be classified as a Freshwater Tidal Fringe use the forms for Riverine wetlands.
If it is Saltwater Tidal Fringe it is an Estuarine wetland and is not scored. This method cannot be
used to score functions for estuarine wetlands.
The vegetated part of the wetland is on the shores of a body of permanent open water (without any
plants on the surface at any time of the year) at least 20 ac (8 ha) in size;
The water flows through the wetland in one direction (unidirectional) and usually comes from seeps.
It may flow subsurface, as sheetflow, or in a swale without distinct banks.
NOTE: Surface water does not pond in these type of wetlands except occasionally in very small and shallow
depressions or behind hummocks (depressions are usually <3 ft diameter and less than 1 ft deep).
The unit is in a valley, or stream channel, where it gets inundated by overbank flooding
from that stream or river,
2. The entire wetland unit is flat and precipitation is the only source (>90%) of water to it.
Groundwater and surface water runoff are NOT sources of water to the unit.
Wetland name or number A
Wetland Rating System for Western WA: 2014 Update
Rating Form - Effective January 1, 2015 6 WSDOT Adapted Form - March 2, 2015
NO - go to 7 YES - The wetland class is Depressional
NO - go to 8 YES - The wetland class is Depressional
NOTES and FIELD OBSERVATIONS:
7. Is the entire wetland unit located in a very flat area with no obvious depression and no overbank flooding?
The unit does not pond surface water more than a few inches. The unit seems to be maintained by high
groundwater in the area. The wetland may be ditched, but has no obvious natural outlet.
8. Your wetland unit seems to be difficult to classify and probably contains several different HGM classes. For
example, seeps at the base of a slope may grade into a riverine floodplain, or a small stream within a
Depressional wetland has a zone of flooding along its sides. GO BACK AND IDENTIFY WHICH OF THE
HYDROLOGIC REGIMES DESCRIBED IN QUESTIONS 1-7 APPLY TO DIFFERENT AREAS IN THE UNIT
(make a rough sketch to help you decide). Use the following table to identify the appropriate class to use for
the rating system if you have several HGM classes present within the wetland unit being scored.
6. Is the entire wetland unit in a topographic depression in which water ponds, or is saturated to the surface, at
some time during the year? This means that any outlet, if present, is higher than the interior of the wetland.
Riverine
Treat as
ESTUARINE
Slope + Lake Fringe
Depressional + Riverine along stream
within boundary of depression
Depressional + Lake Fringe
Riverine + Lake Fringe
NOTE: Use this table only if the class that is recommended in the second column represents 10% or more of
the total area of the wetland unit being rated. If the area of the HGM class listed in column 2 is less than 10%
of the unit; classify the wetland using the class that represents more than 90% of the total area.
HGM classes within the wetland unit
being rated
Slope + Riverine
Slope + Depressional
Depressional
Depressional
If you are still unable to determine which of the above criteria apply to your wetland, or if you have more than
2 HGM classes within a wetland boundary, classify the wetland as Depressional for the rating.
Salt Water Tidal Fringe and any other
class of freshwater wetland
HGM class to
use in rating
Riverine
Depressional
Lake Fringe
Wetland name or number A
Wetland Rating System for Western WA: 2014 Update
Rating Form - Effective January 1, 2015 8 WSDOT Adapted Form - March 2, 2015
D 1.1. Characteristics of surface water outflows from the wetland:
points = 3
points = 2
points = 1
points = 1
Yes = 4 No = 0
Wetland has persistent, ungrazed, plants > 95% of area points = 5
Wetland has persistent, ungrazed, plants > ½ of area points = 3
Wetland has persistent, ungrazed plants > 1/10 of area points = 1
Wetland has persistent, ungrazed plants < 1/10 of area points = 0
D 1.4. Characteristics of seasonal ponding or inundation:
This is the area that is ponded for at least 2 months. See description in manual.
Area seasonally ponded is > ½ total area of wetland points = 4
Area seasonally ponded is > ¼ total area of wetland points = 2
Area seasonally ponded is < ¼ total area of wetland points = 0
Total for D 1 Add the points in the boxes above 4
Rating of Site Potential If score is: 12 - 16 = H 6 - 11 = M 0 - 5 = L Record the rating on the first page
D 2.1. Does the wetland unit receive stormwater discharges?Yes = 1 No = 0 1
Yes = 1 No = 0
D 2.3. Are there septic systems within 250 ft of the wetland?Yes = 1 No = 0 0
Source Yes = 1 No = 0
Total for D 2 Add the points in the boxes above 2
Rating of Landscape Potential If score is: 3 or 4 = H 1 or 2 = M 0 = L Record the rating on the first page
Yes = 1 No = 0
Yes = 1 No = 0
Yes = 2 No = 0
Total for D 3 Add the points in the boxes above 3
Rating of Value If score is: 2 - 4 = H 1 = M 0 = L Record the rating on the first page
D 3.3. Has the site been identified in a watershed or local plan as important
for maintaining water quality (answer YES if there is a TMDL for the basin in
which the unit is found )?
D 1.2. The soil 2 in below the surface (or duff layer) is true clay or true organic
(use NRCS definitions ).
D 1.3. Characteristics and distribution of persistent plants (Emergent, Scrub-shrub, and/or
Forested Cowardin classes):
D 2.4. Are there other sources of pollutants coming into the wetland that are
not listed in questions D 2.1 - D 2.3?
D 3.1. Does the wetland discharge directly (i.e., within 1 mi) to a stream, river,
lake, or marine water that is on the 303(d) list?
D 2.2. Is > 10% of the area within 150 ft of the wetland in land uses that
generate pollutants?
D 3.2. Is the wetland in a basin or sub-basin where an aquatic resource is on the 303(d) list?
D 3.0. Is the water quality improvement provided by the site valuable to society?
1
0
2
0
3
DEPRESSIONAL AND FLATS WETLANDS
1
0
Water Quality Functions - Indicators that the site functions to improve water quality
D 1.0. Does the site have the potential to improve water quality?
1
Wetland has an unconstricted, or slightly constricted, surface outlet
that is permanently flowing
Wetland has an intermittently flowing stream or ditch, OR highly
constricted permanently flowing outlet.
Wetland is a depression or flat depression (QUESTION 7 on key)
with no surface water leaving it (no outlet).
Wetland is a flat depression (QUESTION 7 on key), whose outlet is
a permanently flowing ditch.
0
D 2.0. Does the landscape have the potential to support the water quality function of the site?
Wetland name or number A
Wetland Rating System for Western WA: 2014 Update
Rating Form - Effective January 1, 2015 10 WSDOT Adapted Form - March 2, 2015
D 4.1. Characteristics of surface water outflows from the wetland:
points = 4
points = 2
points = 1
points = 0
Marks of ponding are 3 ft or more above the surface or bottom of outlet points = 7
Marks of ponding between 2 ft to < 3 ft from surface or bottom of outlet points = 5
Marks are at least 0.5 ft to < 2 ft from surface or bottom of outlet points = 3
The wetland is a “headwater” wetland points = 3
Wetland is flat but has small depressions on the surface that trap water points = 1
Marks of ponding less than 0.5 ft (6 in)points = 0
The area of the basin is less than 10 times the area of the unit points = 5
The area of the basin is 10 to 100 times the area of the unit points = 3
The area of the basin is more than 100 times the area of the unit points = 0
Entire wetland is in the Flats class points = 5
Total for D 4 Add the points in the boxes above 3
Rating of Site Potential If score is: 12 - 16 = H 6 - 11 = M 0 - 5 = L Record the rating on the first page
D 5.1. Does the wetland unit receive stormwater discharges?Yes = 1 No = 0 1
D 5.2. Is > 10% of the area within 150 ft of the wetland in land uses that generate excess runoff?
Yes = 1 No = 0
Yes = 1 No = 0
Total for D 5 Add the points in the boxes above 3
Rating of Landscape Potential If score is: 3 = H 1 or 2 = M 0 = L Record the rating on the first page
points = 2
points = 1
Flooding from groundwater is an issue in the sub-basin.points = 1
points = 0
1
1
D 5.3. Is more than 25% of the contributing basin of the wetland covered with intensive human
land uses (residential at >1 residence/ac, urban, commercial, agriculture, etc.)?
The existing or potential outflow from the wetland is so constrained
by human or natural conditions that the water stored by the wetland
cannot reach areas that flood. Explain why
1
3
D 4.2. Depth of storage during wet periods: Estimate the height of ponding above the bottom of
the outlet. For wetlands with no outlet, measure from the surface of permanent water or if dry,
the deepest part.
D 4.3. Contribution of the wetland to storage in the watershed: Estimate the ratio of the area of
upstream basin contributing surface water to the wetland to the area of the wetland unit itself.
D 6.1. The unit is in a landscape that has flooding problems. Choose the description that best
matches conditions around the wetland unit being rated. Do not add points. Choose the highest
score if more than one condition is met.
Hydrologic Functions - Indicators that the site functions to reduce flooding and stream degradation
D 4.0. Does the site have the potential to reduce flooding and erosion?
0
Wetland is a depression or flat depression with no surface water
leaving it (no outlet)
Wetland has an unconstricted, or slightly constricted, surface outlet
that is permanently flowing
Wetland has an intermittently flowing stream or ditch, OR highly
constricted permanently flowing outlet
Wetland is a flat depression (QUESTION 7 on key), whose outlet is
a permanently flowing ditch
0
D 5.0. Does the landscape have the potential to support hydrologic function of the site?
D 6.0. Are the hydrologic functions provided by the site valuable to society?
The wetland captures surface water that would otherwise flow down-gradient into areas
where flooding has damaged human or natural resources (e.g., houses or salmon redds):
Flooding occurs in a sub-basin that is immediately down-
gradient of unit.
Surface flooding problems are in a sub-basin farther down-
gradient.
DEPRESSIONAL AND FLATS WETLANDS
Wetland name or number A
Wetland Rating System for Western WA: 2014 Update
Rating Form - Effective January 1, 2015 11 WSDOT Adapted Form - March 2, 2015
There are no problems with flooding downstream of the wetland.points = 0
Yes = 2 No = 0
Total for D 6 Add the points in the boxes above 1
Rating of Value If score is: 2 - 4 = H 1 = M 0 = L Record the rating on the first page
D 6.2. Has the site been identified as important for flood storage or flood
conveyance in a regional flood control plan?
Wetland name or number A
Wetland Rating System for Western WA: 2014 Update
Rating Form - Effective January 1, 2015 12 WSDOT Adapted Form - March 2, 2015
HABITAT FUNCTIONS - Indicators that site functions to provide important habitat
H 1.0. Does the site have the potential to provide habitat?
Aquatic bed 4 structures or more: points = 4
Emergent 3 structures: points = 2
Scrub-shrub (areas where shrubs have > 30% cover)2 structures: points - 1
Forested (areas where trees have > 30% cover)1 structure: points = 0
If the unit has a Forested class, check if :
H 1.2. Hydroperiods
Permanently flooded or inundated 4 or more types present: points = 3
Seasonally flooded or inundated 3 types present: points = 2
Occasionally flooded or inundated 2 types present: points = 1
Saturated only 1 types present: points = 0
Permanently flowing stream or river in, or adjacent to, the wetland
Seasonally flowing stream in, or adjacent to, the wetland
Lake Fringe wetland 2 points
Freshwater tidal wetland 2 points
H 1.3. Richness of plant species
If you counted:> 19 species points = 2
5 - 19 species points = 1
< 5 species points = 0
H 1.4. Interspersion of habitats
None = 0 points Low = 1 point Moderate = 2 points
All three diagrams
in this row are
1
Check the types of water regimes (hydroperiods) present within the wetland. The water regime
has to cover more than 10% of the wetland or ¼ ac to count (see text for descriptions of
hydroperiods ).
1
Count the number of plant species in the wetland that cover at least 10 ft2.Different patches of the same species can be combined to meet the size threshold and you do
not have to name the species. Do not include Eurasian milfoil, reed canarygrass, purple
loosestrife, Canadian thistle 1
Decide from the diagrams below whether interspersion among Cowardin plants classes
(described in H 1.1), or the classes and unvegetated areas (can include open water or mudflats)
is high, moderate, low, or none. If you have four or more plant classes or three classes and open
water, the rating is always high.
These questions apply to wetlands of all HGM classes.
The Forested class has 3 out of 5 strata (canopy, sub-canopy, shrubs, herbaceous,
moss/ground-cover) that each cover 20% within the Forested polygon
1
H 1.1. Structure of plant community: Indicators are Cowardin classes and strata within the
Forested class. Check the Cowardin plant classes in the wetland. Up to 10 patches may be
combined for each class to meet the threshold of ¼ ac or more than 10% of the unit if it is
smaller than 2.5 ac. Add the number of structures checked.
Wetland name or number A
Wetland Rating System for Western WA: 2014 Update
Rating Form - Effective January 1, 2015 13 WSDOT Adapted Form - March 2, 2015
HIGH = 3 points
Wetland name or number A
Wetland Rating System for Western WA: 2014 Update
Rating Form - Effective January 1, 2015 14 WSDOT Adapted Form - March 2, 2015
H 1.5. Special habitat features:
Large, downed, woody debris within the wetland (> 4 in diameter and 6 ft long)
Standing snags (dbh > 4 in) within the wetland
Total for H 1 Add the points in the boxes above 7
Rating of Site Potential If Score is: 15 - 18 = H 7 - 14 = M 0 - 6 = L Record the rating on the first page
H 2.0. Does the landscape have the potential to support the habitat function of the site?
H 2.1 Accessible habitat (include only habitat that directly abuts wetland unit ).
Calculate:
0 % undisturbed habitat + (0.29 % moderate & low intensity land uses / 2 ) = 0.145%
If total accessible habitat is:
> 1/3 (33.3%) of 1 km Polygon points = 3
20 - 33% of 1 km Polygon points = 2
10 - 19% of 1 km Polygon points = 1
< 10 % of 1 km Polygon points = 0
H 2.2. Undisturbed habitat in 1 km Polygon around the wetland.
Calculate:
5 % undisturbed habitat + (2.3 % moderate & low intensity land uses / 2 ) = 6.15%
Undisturbed habitat > 50% of Polygon points = 3
Undisturbed habitat 10 - 50% and in 1-3 patches points = 2
Undisturbed habitat 10 - 50% and > 3 patches points = 1
Undisturbed habitat < 10% of 1 km Polygon points = 0
H 2.3 Land use intensity in 1 km Polygon: If
> 50% of 1 km Polygon is high intensity land use points = (-2)
≤ 50% of 1km Polygon is high intensity points = 0
Total for H 2 Add the points in the boxes above -2
Rating of Landscape Potential If Score is: 4 - 6 = H 1 - 3 = M < 1 = L Record the rating on the first page
Site meets ANY of the following criteria:points = 2
It has 3 or more priority habitats within 100 m (see next page)
It is mapped as a location for an individual WDFW priority species
Check the habitat features that are present in the wetland. The number of checks is the number
of points.
It has been categorized as an important habitat site in a local or
regional comprehensive plan, in a Shoreline Master Plan, or in a
Undercut banks are present for at least 6.6 ft (2 m) and/or overhanging plants extends
at least 3.3 ft (1 m) over a stream (or ditch) in, or contiguous with the wetland, for at
least 33 ft (10 m)
Stable steep banks of fine material that might be used by beaver or muskrat for
denning (> 30 degree slope) OR signs of recent beaver activity are present (cut shrubs
or trees that have not yet weathered where wood is exposed )
At least ¼ ac of thin-stemmed persistent plants or woody branches are present in areas
that are permanently or seasonally inundated (structures for egg-laying by amphibians )
3
It is a Wetland of High Conservation Value as determined by the
Department of Natural Resources
0
Invasive plants cover less than 25% of the wetland area in every stratum of plants (see
H 1.1 for list of strata )
0
0
-2
H 3.0. Is the habitat provided by the site valuable to society?
H 3.1. Does the site provide habitat for species valued in laws, regulations, or policies? Choose
only the highest score that applies to the wetland being rated .
It provides habitat for Threatened or Endangered species (any plant
or animal on the state or federal lists)
Wetland name or number A
Wetland Rating System for Western WA: 2014 Update
Rating Form - Effective January 1, 2015 15 WSDOT Adapted Form - March 2, 2015
Site has 1 or 2 priority habitats (listed on next page) with in 100m points = 1
Site does not meet any of the criteria above points = 0
Rating of Value If Score is: 2 = H 1 = M 0 = L Record the rating on the first page
watershed plan
Wetland name or number A
Wetland Rating System for Western WA: 2014 Update
Rating Form - Effective January 1, 2015 16 WSDOT Adapted Form - March 2, 2015
Aspen Stands: Pure or mixed stands of aspen greater than 1 ac (0.4 ha).
Herbaceous Balds: Variable size patches of grass and forbs on shallow soils over bedrock.
Cliffs: Greater than 25 ft (7.6 m) high and occurring below 5000 ft elevation.
Priority habitats listed by WDFW (see complete descriptions of WDFW priority habitats, and the counties in
which they can be found, in: Washington Department of Fish and Wildlife. 2008. Priority Habitat and Species
List. Olympia, Washington. 177 pp.
Oregon White Oak: Woodland stands of pure oak or oak/conifer associations where canopy
coverage of the oak component is important (full descriptions in WDFW PHS report p. 158 – see
web link above ).
Riparian: The area adjacent to aquatic systems with flowing water that contains elements of both
aquatic and terrestrial ecosystems which mutually influence each other.
Westside Prairies: Herbaceous, non-forested plant communities that can either take the form of a
dry prairie or a wet prairie (full descriptions in WDFW PHS report p. 161 – see web link above ).
Instream: The combination of physical, biological, and chemical processes and conditions that
interact to provide functional life history requirements for instream fish and wildlife resources.
Nearshore: Relatively undisturbed nearshore habitats. These include Coastal Nearshore, Open
Coast Nearshore, and Puget Sound Nearshore. (full descriptions of habitats and the definition of
relatively undisturbed are in WDFW report – see web link on previous page ).
Snags and Logs: Trees are considered snags if they are dead or dying and exhibit sufficient decay
characteristics to enable cavity excavation/use by wildlife. Priority snags have a diameter at breast
height of > 20 in (51 cm) in western Washington and are > 6.5 ft (2 m) in height. Priority logs are >
Talus: Homogenous areas of rock rubble ranging in average size 0.5 - 6.5 ft (0.15 - 2.0 m),
composed of basalt, andesite, and/or sedimentary rock, including riprap slides and mine tailings.
May be associated with cliffs.
Caves: A naturally occurring cavity, recess, void, or system of interconnected passages under the
earth in soils, rock, ice, or other geological formations and is large enough to contain a human.
WDFW Priority Habitats
Count how many of the following priority habitats are within 330 ft (100 m) of the wetland unit: NOTE : This
question is independent of the land use between the wetland unit and the priority habitat.
Biodiversity Areas and Corridors: Areas of habitat that are relatively important to various species
of native fish and wildlife (full descriptions in WDFW PHS report ).
Old-growth/Mature forests: Old-growth west of Cascade crest – Stands of at least 2 tree species,
forming a multi-layered canopy with occasional small openings; with at least 8 trees/ac (20 trees/ha)
> 32 in (81 cm) dbh or > 200 years of age. Mature forests – Stands with average diameters
exceeding 21 in (53 cm) dbh; crown cover may be less than 100%; decay, decadence, numbers of
snags, and quantity of large downed material is generally less than that found in old-growth; 80-200
years old west of the Cascade crest.
http://wdfw.wa.gov/publications/00165/wdfw00165.pdf or access the list from here:
http://wdfw.wa.gov/conservation/phs/list/
Wetland name or number A
Wetland Rating System for Western WA: 2014 Update
Rating Form - Effective January 1, 2015 17 WSDOT Adapted Form - March 2, 2015
12 in (30 cm) in diameter at the largest end, and > 20 ft (6 m) long.
Note: All vegetated wetlands are by definition a priority habitat but are not included in this list because they are
addressed elsewhere.
Wetland name or number A
Wetland Rating System for Western WA: 2014 Update
Rating Form - Effective January 1, 2015 18 WSDOT Adapted Form - March 2, 2015
Wetland Type Category
Check off any criteria that apply to the wetland. List the category when the appropriate criteria are met.
SC 1.0. Estuarine Wetlands
Does the wetland meet the following criteria for Estuarine wetlands?
The dominant water regime is tidal,
Vegetated, and
With a salinity greater than 0.5 ppt
Yes - Go to SC 1.1 No = Not an estuarine wetland
SC 1.1.
Yes = Category I No - Go to SC 1.2
SC 1.2.Is the wetland unit at least 1 ac in size and meets at least two of the following three conditions?
Yes = Category I No = Category II
SC 2.0. Wetlands of High Conservation Value (WHCV)
SC 2.1.
Yes - Go to SC 2.2 No - Go to SC 2.3
SC 2.2.Is the wetland listed on the WDNR database as a Wetland of High Conservation Value?
Yes = Category I No = Not WHCV
SC 2.3.Is the wetland in a Section/Township/Range that contains a Natural Heritage wetland?
http://www1.dnr.wa.gov/nhp/refdesk/datasearch/wnhpwetlands.pdf
Yes - Contact WNHP/WDNR and to SC 2.4 No = Not WHCV
SC 2.4.
Yes = Category I No = Not WHCV
SC 3.0. Bogs
SC 3.1.
Yes - Go to SC 3.3 No - Go to SC 3.2
SC 3.2.
Yes - Go to SC 3.3 No = Is not a bog
SC 3.3.
Yes = Is a Category I bog No - Go to SC 3.4
SC 3.4.
NOTE: If you are uncertain about the extent of mosses in the understory, you may
substitute that criterion by measuring the pH of the water that seeps into a hole dug at
least 16 in deep. If the pH is less than 5.0 and the plant species in Table 4 are present,
the wetland is a bog.
Is an area with peats or mucks forested (> 30% cover) with Sitka spruce, subalpine fir,
CATEGORIZATION BASED ON SPECIAL CHARACTERISTICS
Is the wetland within a National Wildlife Refuge, National Park, National Estuary
Reserve, Natural Area Preserve, State Park or Educational, Environmental, or Scientific
Reserve designated under WAC 332-30-151?
The wetland is relatively undisturbed (has no diking, ditching, filling, cultivation, grazing,
and has less than 10% cover of non-native plant species. (If non-native species are
Spartina , see page 25)
At least ¾ of the landward edge of the wetland has a 100 ft buffer of shrub, forest, or un-
grazed or un-mowed grassland.
The wetland has at least two of the following features: tidal channels, depressions with
open water, or contiguous freshwater wetlands.
Has WDNR identified the wetland within the S/T/R as a Wetland of High Conservation
Value and listed it on their website?
Has the WA Department of Natural Resources updated their website to include the list
of Wetlands of High Conservation Value?
Does the wetland (or any part of the unit) meet both the criteria for soils and vegetation
in bogs? Use the key below. If you answer YES you will still need to rate the
wetland based on its functions .
Does an area within the wetland unit have organic soil horizons, either peats or mucks,
that compose 16 in or more of the first 32 in of the soil profile?
Does an area within the wetland unit have organic soils, either peats or mucks, that are
less than 16 in deep over bedrock, or an impermeable hardpan such as clay or volcanic
ash, or that are floating on top of a lake or pond?
Does an area with peats or mucks have more than 70% cover of mosses at ground
level, AND at least a 30% cover of plant species listed in Table 4?
Wetland name or number A
Wetland Rating System for Western WA: 2014 Update
Rating Form - Effective January 1, 2015 19 WSDOT Adapted Form - March 2, 2015
Yes = Is a Category I bog No = Is not a bog
p ( ) p , p ,
western red cedar, western hemlock, lodgepole pine, quaking aspen, Engelmann
spruce, or western white pine, AND any of the species (or combination of species)
listed in Table 4 provide more than 30% of the cover under the canopy?
Wetland name or number A
Wetland Rating System for Western WA: 2014 Update
Rating Form - Effective January 1, 2015 20 WSDOT Adapted Form - March 2, 2015
SC 4.0. Forested Wetlands
Yes = Category I No = Not a forested wetland for this section
SC 5.0. Wetlands in Coastal Lagoons
Does the wetland meet all of the following criteria of a wetland in a coastal lagoon?
Yes - Go to SC 5.1 No = Not a wetland in a coastal lagoon
SC 5.1. Does the wetland meet all of the following three conditions?
The wetland is larger than 1/10 ac (4350 ft2)
Yes = Category I No = Category II
SC 6.0. Interdunal Wetlands
In practical terms that means the following geographic areas:
Long Beach Peninsula: Lands west of SR 103
Grayland-Westport: Lands west of SR 105
Ocean Shores-Copalis: Lands west of SR 115 and SR 109
Yes - Go to SC 6.1 No = Not an interdunal wetland for rating
SC 6.1.
Yes = Category I No - Go to SC 6.2
SC 6.2.Is the wetland 1 ac or larger, or is it in a mosaic of wetlands that is 1 ac or larger?
Yes = Category II No - Go to SC 6.3
SC 6.3.
Yes = Category III No = Category IV
Category of wetland based on Special Characteristics
If you answered No for all types, enter “Not Applicable” on Summary Form
The wetland is relatively undisturbed (has no diking, ditching, filling, cultivation,
grazing), and has less than 20% cover of aggressive, opportunistic plant species (see
list of species on p. 100).
At least ¾ of the landward edge of the wetland has a 100 ft buffer of shrub, forest, or un-
grazed or un-mowed grassland.
Is the wetland west of the 1889 line (also called the Western Boundary of Upland
Ownership or WBUO)? If you answer yes you will still need to rate the wetland
based on its habitat functions.
Is the wetland 1 ac or larger and scores an 8 or 9 for the habitat functions on the form
(rates H,H,H or H,H,M for the three aspects of function)?
Is the unit between 0.1 and 1 ac, or is it in a mosaic of wetlands that is between 0.1 and
1 ac?
The wetland lies in a depression adjacent to marine waters that is wholly or partially
separated from marine waters by sandbanks, gravel banks, shingle, or, less frequently,
rocks
The lagoon in which the wetland is located contains ponded water that is saline or
brackish (> 0.5 ppt) during most of the year in at least a portion of the lagoon (needs to
be measured near the bottom )
Does the wetland have at least 1 contiguous acre of forest that meets one of these
criteria for the WA Department of Fish and Wildlife’s forests as priority habitats? If you
answer YES you will still need to rate the wetland based on its functions.
Old-growth forests (west of Cascade crest): Stands of at least two tree species,
forming a multi-layered canopy with occasional small openings; with at least 8 trees/ac
(20 trees/ha) that are at least 200 years of age OR have a diameter at breast height
(dbh) of 32 in (81 cm) or more.
Mature forests (west of the Cascade Crest): Stands where the largest trees are 80-
200 years old OR the species that make up the canopy have an average diameter
(dbh) exceeding 21 in (53 cm).
Soundview Consultants LLC Revised October 27, 2017
1413.0004 – East Valley Road - Wetland and Fish and Wildlife Habitat Assessment
Appendix G – Prior Approved Application and Wetland
Rating
Permit Details
https://permitsearch.mybuildingpermit.com/...ails.aspx?permitnumber=PRE16-000978&permitstatus=Complete&parcelnumber=302305-9103[6/22/2017 1:34:30 PM]
Permit Details
Activities Inspections Conditions Fees
INFORMATION ON PERMIT PRE16-000978
Permit Status: Complete (status definition)Description:
People Data: (click for applicant/owner/contractor details)2,372 sq. ft. expansion of the north end of the existing building
located at 2500 East Valley Road. Expansion would add two fully
enclosed truck bays.
Site Address: 2500 East Valley Rd
Application Date: Dec 30, 2016
Parcel Number: 302305-9103 (property map & information)
City Staff: Angelea Weihs
Activities
Plan Added
City Staff: Alex Morganroth Status: Applied Date: Dec 30, 2016
Notes: PLAN Added
Inspections
Conditions
Fees
Item Fee Amount Fee Remaining
Other permits associated with this parcel
Permit
Number Status Description
LUA17-000324 In
Review
The applicant is requesting Environmental Review, an Urban Design Modification, a
Street Modification, and a Minor Modification to an approved Site Plan for a
proposed 2,673 square foot addition to the existing 28,065 square foot building
located at 2500 E Valley Rd (Parcel number 3023059103). The subject site is 3.07
acres (134,074 sf) and is zoned Commercial Arterial (CA). The building is currently
used as administrative offices for US Bank. The expansion would enlarge the
building’s footprint from 28,065 square feet to 30,738 square feet. Existing access is
gained via East Valley Road. The proposed development would include two enclosed
truck bays, removal of parking stalls, and a new landscape planter strips along the
sides of the building expansion. Seismic hazards are mapped on the project site. A
Category III wetland is mapped off-site within 50 feet of the property. The applicant
has requested and received an administrative determination that the project is
exempt from the required wetland buffer setbacks, due to the existing separation
from the wetland by pre-existing, intervening, and lawfully created substantial
existing improvements, per RMC 4-3-050B.1.g.
B17002305 Plan
Check/In
Review
REMODEL OF EXISTING OFFICE SPACE FOR US BANK. 12,780 SQ FT
PRE16-000978 Complete 2,372 sq. ft. expansion of the north end of the existing building located at 2500 East
Valley Road. Expansion would add two fully enclosed truck bays.
E16005396 Finaled A (Nonresidential Alteration) project installing (Temporary Service). Additional Info
(). Work Site Location ()
E16005035 Issued A (Nonresidential Alteration) project installing (Temporary Service). Additional Info
(). Work Site Location ()
E15007386 Expired A (Nonresidential Alteration) project installing (Security system). Additional Info ().
Work Site Location ()
Permit Details
https://permitsearch.mybuildingpermit.com/...ails.aspx?permitnumber=PRE16-000978&permitstatus=Complete&parcelnumber=302305-9103[6/22/2017 1:34:30 PM]
E15007203 Finaled ELEC- LOAD BANK TEST 250 KW GENERATOR FOR US BANK
E15002857 Finaled A (Nonresidential Addition) project installing (Security system; Door Locks).
Additional Info (). Work Site Location ()
E14004966 Finaled A (Nonresidential Alteration) project installing (Panel). Additional Info (). Work Site
Location ()
E14002643 Finaled US BANK - LOW VOLTAGE - INSTALL CABLE SUPPORT ABOVE CEILING
E14001094 Finaled A (Nonresidential Alteration) project installing (Data cable system). Additional Info
(). Work Site Location ()
E13004903 Finaled US BANK - LOADBANK GENERATOR TEST
F13003885 Finaled REPLACE SCAN UNIT WITH AES RADIO
E13003755 Expired A (Multifamily Residential Alteration) project installing (Fire Alarms). Additional Info
(NE Corner Phone Room). Work Site Location (Building C)
E111220 Finaled INSTALL 300 KW GENERATOR FOR US BANK DATA CENTER-OTC PER AS
E110898 Finaled US BANK-INSTALL 1 LS-15R RECEPTACLE IN DEMARC RM
E110703 Finaled INSTALL 4 IN CONDUIT AND DS-3 COAX FOR US BANK
E110276 Finaled INSTALL LOW VOLT. VOICE & DATA CABLE AT US BANK T.I.
E110222 Finaled INSTALL POWER MODIFICATIONS TO BRANCH CIRCUITS AT US BANK - SUITE C
B110044 Finaled CONSTRUCT INTERIOR T.I. FOR US BANK
E101525 Finaled MOVE OUTLET FOR MONITOR AT RENTON DATA CENTER
E101527 Finaled INSTALL CIRCUITS FOR U S BANK
P09-052 Recorded 3 LOT SHORT PLAT WITH EXISTING BUILDINGS
LUA09-042 Recorded The applicant is proposing to subdivide an existing parcel into 3 lots which contains
an existing three building office development to be retained. The proposed lots
would range in size from 10,335 square feet up to 27,723 square feet; each of the
lots would contain one of the three existing commercial buildings. The subject
property is located on the east side of East Valley Road just north of SW 27th
Street. The project site totals 5.59 acres in area and is zoned Commercial Arterial
(CA). Access for the proposed lots would be provided via existing driveways along
East Valley Road. An addendum to the existing SEPA Determination of Non-
Significance-Mitigated, issued for the construction of the office development (ECF-
053-87), is also being requested in order to recognize the proposed lot lines.
5/19/09 - Appeal and reconsideration received. 7/1/09 - Planning Director
responded to reconsideration upholding the approval of the plat with a revision to
condition 2 of the initial report & decision dated 5/5/09. New appeal period ends
7/15/09. 7/15/09 - Appeal of Planning Director's reconsideration decision received.
Appeal scheduled to be heard by the Hearing Examiner on 7/28/09. 7/28/09 -
Hearing Examiner opened and continued heaing to a date TBD. 8/13/10 - Stipulation
& Order agreement removing condition #1 of the Administrative Report & Decision
dated 5/5/09 was signed by the applicant, City Attorney, & Hearing Examiner -
appeal withdrawn.
PRE08-030 Complete 3 LOT SHORT PLAT WITH THREE EXISTING COMMERCIAL BUILDINGS. 4/1/08 -
APPLICANT REQUESTED THE LANDSCAPING IMPROVEMENTS BE WAIVED AS PART
OF THE SHORT PLAT. NEIL WATTS DETERMINED THAT THE LANDSCOING WOULD
NOT BE WAIVED. 4/3/08- APPLICANT REQUESTED A WETLAND STUDY, PROVIDED
BY DOT FOR A HWY 167 PROJECT, TAKE THE PLACE OF THE STREAM STUDY
REQUIRED FOR PROJECT REVIEW. NEIL WATTS DETERMINED THAT A STREAM
STUDY DONE FOR THE SITE IS NECCESSARY AND THE STUDY DONE BY DOT
WOULD NOT SATISFY THIS REQUIREMENT.
E071243 Finaled INSTALL WIRING TO REPLACE HVAC UNITS AT US BANK
M070370 Finaled REPLACEMENT OF EQUIPMENT (3 UNITS) AT US BANK
P06-214 Expired CONVERT COMMERCIAL BLDG TO CHURCH USE
LUA06-130 Expired The applicant is requesting a Hearing Examiner Conditional Use Permit to operate
the Oasis Seattle Church on a 244,807 square foot (5.6 acre) site located within the
Commercial Arterial (CA) zoning designation and the Employment Area Valley (EAV)
Overlay. The Oasis Seattle Church has approximately 400 members. Services are
held on Thursdays from 6-9 pm and on Sunday from 8 am-2 pm. Parking would be
Permit Details
https://permitsearch.mybuildingpermit.com/...ails.aspx?permitnumber=PRE16-000978&permitstatus=Complete&parcelnumber=302305-9103[6/22/2017 1:34:30 PM]
provided within the existing parking lot located on the project site. No building or
landscaping improvments are proposed at this time.
PRE06-071 Complete PREAPP MEETING TO DISCUSS THE FEASIBILITY OF A CONDITIONAL USE PERMIT
FOR A CHURCH IN THE CA ZONE.
F050109 Finaled INSTALL FIRE ALARM SYSTEM
F040248 Finaled FIRE PANEL REPLACEMENT
E040985 Finaled INSTALL (1) NEW PROGRAMMABLE THERMOSTAT/U.S. BANK
M040314 Finaled INSTALL ROOF TOP HEAT PUMP AT US BANK
E040712 Finaled ADD NEW LTG PANEL, RELOCATE LTG BRANCH CKTS, NEW UPS FEEDER/U.S. BANK
SUITE C
E020045 Finaled INSTALL VIDEO CABLE TO PROJECTOR-MANUFACTURE INDUSTRIAL OFFICE
B000634 Finaled ADD NEW OFFICE FOR FAA WITHIN EXISTING BUILDING
E001305 Finaled INSTALL ELECT.FOR TENANT IMPROVEMENT/FAA
E000231 Finaled INSTALL LOW VOLTAGE SECURITY SYSTEM/#C2
B980437 Expired TI FOR US BANCORP/EXPIRED TOSSED PLANS
E980867 Finaled CONNECT ELECTRIC TO HVAC EQUIPMENT
B980352 Finaled CONSTRUCT STRUCTURAL MODIFICATIONS FOR MECH.
M980266 Finaled 1 ROOFTOP GAS A/C UNIT 150,000 BTU/2 RELIEF SYST./2 GAS PIPE.REV.FOR US
BANK.ALTER.3EXIST.SYST.8/3
E980816 Finaled ADD 1 LOW VOLT.T-STAT FOR US BANK
E980738 Finaled INSTALL LOW VOLTAGE DATA CABELING - SUITE C
E980732 Finaled ADD TELE POWER POLES & MISC CLEAN UP OF CIRCUITS
B980257 Finaled REMOVE PARTITION WALLS
S970080 Finaled INSTALL RAISED LETTER SIGN FOR AEROTEK
E971237 Finaled INSTALL VOICE & DATA CABLE FOR FAA TI
P970422 Finaled INSTALL PLUMBING FOR FAA TI
F970208 Finaled INSTALLATION OF FIRE SPRINKLERS
E971195 Finaled INSTALL LIGHTING & POWER FOR FAA TI
M970536 Finaled INSTALL 1 3 TON A/C UNIT/2 5 TON AC UNITS & 5 EXH.FANS FOR FAA TI.
E971193 Finaled INSTALL 3 24 VOLT THERMOSTATS FOR FAA TI
B970512 Finaled CONSTRUCT OFFICE TENANT IMPROVEMENT FOR FAA
E970280 Finaled INSTALL TELEPHONE WIRING FOR AEROTEC TI
E970215 Finaled WIRE 9 POWER INTERIOR POWER POLES IN AEROTEC TI
F970024 Finaled INSTALLATION OF FIRE SPRINKLERS
E970078 Finaled INSTALL ELECTRICAL IN AEROTEC TI BLG.#C
P970026 Finaled INSTALL PLUMBING IN AREOTECH TI BLDG.#C
M970022 Finaled INSTALL 3 HEAT PUMPS(3 TON)/4 EXHAUST FANS (100 CFM)/1 HEAT PUMP (7 1/2
TON)
E970054 Finaled INSTALL 4 THERMOSTATS
E970034 Finaled INSTALL SERVICE AND FEEDER
B960830 Finaled AEROTEC TENANT IMPROVEMENT FOR BLDG C
E961125 Finaled ADD 2 CIRCUIT FOR ACCESS CONTROL #7-84
E961126 Finaled INSTALL 2 DOOR ACCESS CONTROL SYSTEM (LOW VOLT.) #7-84
E960979 Finaled INSTALL LOW VOLTAGE CONTROL OF HVAC FOR U.S.BANK
F960153 Finaled RELOCATE 5 HEADS, PLUG 2
E960949 Finaled RELOCATE ALARM IN US BANK OF WASHINGTON
E960900 Finaled INSTALL LOW VOLTAGE DATA CABLING FOR U.S.BANK
M960423 Finaled RELOCATE EXISTING DIFFUSERS & R.A.G.S FOR RENTON DATA CTR.
E960875 Finaled NSTALL ELECTRICAL TO WIRE OFFICES FOR US BANK TI
B960470 Finaled INTERIOR DEMOLITION FOR U.S.BANK TI
B960468 Finaled U.S.BANK TENANT IMPROVEMENT
F940193 Finaled INSTALL SPRINKLERS FOR TI (#B940313)
Soundview Consultants LLC Revised October 27, 2017
1413.0004 – East Valley Road - Wetland and Fish and Wildlife Habitat Assessment
Appendix H – Qualifications
Jon Pickett, Senior Scientist/Environmental Planner
Jon Pickett is a Senior Scientist/Environmental Planner with diverse professional experience in habitat
development as a Regional Biologist and Environmental Project Manager, with an emphasis in wetland
restoration and enhancement. Jon has extensive experience successfully planning, developing, securing
funding, managing and implementing numerous large-scale wetland habitat projects aimed at restoring
the biological and physical functions of wetlands throughout California’s Central Valley and Southern
California. He worked to ensure the projects were designed and implemented to achieve habitat
restoration goals, including reclamation of wetland and floodplain habitats, reintroduction of aquatic
complexity and habitat, and reestablishment of riparian corridor. Jon also managed regulatory
coordination to ensure projects operated in compliance with Federal, State and local environmental
regulations, preparing permit documentation, coordinating with all pertinent agencies and
stakeholders, and developing and maintaining appropriate permitting timelines to ensure timely
approvals. He oversaw earthwork construction components and revegetation efforts, as well as post-
project monitoring, with an emphasis in native vegetation establishment and natural channel
morphology. Jon managed a 2,200 acre private wetland and upland habitat complex as a public trust
resource for conservation and consumptive use. Jon has worked with Federal and State agencies and
private entities on land acquisitions for conservational habitat and public use, including prioritizing
acquisitions relative to value and opportunity and funding.
Emily Swaim, Wetland Scientist/Field Geologist
Emily Swaim is a Wetland Scientist and Field Geologist with a background in delineating and assessing
wetland and aquatic systems, conducting Phase I, II and III Environmental Site Assessments (ESAs),
underground natural gas pipeline and overhead electrical transmission line project assessment and
environmental inspections, construction oversight, stormwater compliance inspections, soil sampling,
and stormwater, floodplain, and wetland permitting. Ms. Swaim’s expertise focuses on projects
involving sensitive wetland and stream habitats where extensive team coordination and various
regulatory challenges must be carefully and intelligently managed from project inception to
completion.
Emily earned a Bachelor of Science degree in Geology from Illinois State University and is also
educated in Environmental Science from Iowa State University. She also studied Wetland Science and
Management at the University of Washington in the Professional Continuing Education Certification
Program to further enhance her professional capabilities and wetland science knowledge. Her
education and experience has provided her with extensive knowledge on soils, wetland science,
restoration and field botany, hydrogeology, sedimentology, environmental and wetland law,
environmental geology, landscape ecology, and structural geology.
Ms. Swaim has been formally trained in the use of the Washington State Wetland Rating System for
Western Washington, determination of the Ordinary High Mark, identification of Wetlands of High
Conservation Value, Grass, Sedge, and Rush identification, and how to choose Mitigation Sites based
on a Watershed Approach. She is also formally trained in Hazardous Waste Operations and
Soundview Consultants LLC Revised October 27, 2017
1413.0004 – East Valley Road - Wetland and Fish and Wildlife Habitat Assessment
Emergency Response (HAZWOPER) and is also Occupational Health and Safety Administration
(OSHA) 30-hour Construction and 10-hour Construction certified. She also has extensive experience
in environmental compliance monitoring involving final site restoration efforts. Her former 115-mile
345 kV Electrical Transmission Line construction project won the Trumbull County Soil and Water
Conservation District’s Project and Contractor of the Year Award in 2014 in regards to environmental
compliance efforts that ensured regulatory compliance and successful project implementation. Ms.
Swaim is a Pierce County Qualified Wetland Specialist.
Melissa Cole, Staff Scientist
Melissa Cole is a Staff Scientist with a background in research writing, project management, peer
review, executing scopes of work, budgeting and financing, organizing and attending technical science
seminars, public outreach, data entry and analysis, Phase I and Phase II environmental site
assessments, soil sampling, soil vapor sampling, soil excavation monitoring, field classification of soils,
stormwater surveying, water sampling, asbestos sampling, lead in water sampling, lead in paint
sampling, noise monitoring, radon sampling, tree height / width and condition measurements, tree
density measurements, seedling and sapling counting, analyzing grazing conditions, statistical analysis,
and research presentation.
Melissa received a Bachelor of Science degree from San Jose State University in Environmental Studies
with a minor in Biology. This program provided her with a strong background in natural resource
management, environmental laws and regulations, habitat conservation, and environmental
restoration. Melissa’s interest in habitat conservation drove her to minor in Biological Science where
she had courses in botany, zoology, computer literacy, biostatistical analysis, and ecology.