20130331 FEMA Floodplain Habitat Assessment 08212013 �
W�TLAl'�TDS � �I�DLIFE
Environmental Consulting
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FEMA FLOO[�PLAIN HABITAT ASSESSMENT
WEBER PRC�PERTY (CITY OF YELM, WA�
THURSTON COUNTY PARCEL #227192403000
Prepared For:
Mr. Randy Weber
26550 SE 354th Place
Black Diamond, WA 98010
Prepared Bv:
Wetlands & Wildlife, Inc.
15129-55t" Drive SE
Everett, Washington 98208
(425) 337-6450
Jur�e 10, 2013 �CEIVED
AUG 2 1 2013
�Y;
TABLE OF CONTENTS
BACKGROUNDINFORMATION �
INTRODUCTION AND BRIEF SITE DESCRIPTION 2
METHODOLOGIES OF THIS FLOODPLAIN HABITAT ASSESSMENT 2
SITE VISIT FINDINGS 4
PROPOSED PROJECT DESCRIPTION 4
PROPOSED COMPENSATORY MITIGATION EFFORTS 5
ACTION AREA DESCRIPTION 6
PROTECTED AREA DESCRIPTION $
HABITAT AREA NARRATIVE 8
ENDANGERED AND THREATENED SPECIES LISTS 9
USE OF THE ACTION AREA BY ENDANGERED OR THREATENED SPECIES 9
ESSENTIAL FISH HABITAT DISCUSSION 10
ANALYSIS OF EFFECTS ON ESA-LISTED SPECIES 1 O
DETERMINATION OF EFFECTS ON ESA-LISTED SPECIES 11
SUMMARY OF REVIEW FINDINGS 12
LIMITATIONS AND USE OF THIS REPORT 13
REFERENCES AND LITERATURE REVIEWED 14
FIGURES ATTACHED TO THIS REPORT:
1. HABITAT ASSESSMENT FLOW CHART FIGURE 1
2. PROJECT VICINITY&ACTION AREA MAP FIGURE 2
3. PROJECT AREA MAP FIGURE 3
4. HABITAT AREA MAP FIGURE 4
5. PROPOSED PROJECT MAP FIGURE 5
BACKGROUND INFORMATION
On September 22, 2008, the National Marine Fisheries Service (NMFS) issued a Biological Opinion that
recommended changes to the implementation of the National Flood Insurance Program (NFIP) to meet the
requirements of the Endangered Species Act (ESA) in the Puget Sound watershed. The Biological Opinion
noted that the continued implementation of the NF�P in the same manner adversely affects the habitat of
certain threatened and endangered species within the Puget Sound watershed. The Biological Opinion
issued by NMFS offered local communities within the Puget Sound watershed the following two ways to
meet the ESA requirement:
1. Prohibit all development in the floodway and other areas; OR
2. Enact regulations that allow development that meet the criteria specified in the Biological Opinion
by either:
a. Adopting the Floodplain Management and the Endangered Species Act Model Ordinance
produced by the Federal Emergency Management Agency (FEMA) in January 2012
(hereinafter referred to as the Model Ordinance), or
b. Enforcing the same requirements in other ordinances, such as the growth management,
zoning, or critical areas regulations.
FEMA produced a document titled Floodplain Habitat Assessment and Mitiqation Reqional Guidance
(produced in April of 2011 and hereinafter referred to as the Regional Guidance document) to provide
guidance for evaluating development projects located within FEMA Flood Hazard Areas. As such, permit
applications for proposed development within mapped FEMA Flood Hazard Areas are required to be in
compliance with the ESA through implementation of the FEMA Floodplain Habitat Assessment
requirements.
As mentioned in Section 1.3.1 of the Model Ordinance, the purpose of the Model Ordinance as it specifically
relates to fish and wildlife habitat areas is to Maintain the quality of water in rivers, streams, lakes,
estuaries, and marine areas and their floodplains so as to protect public water supplies, areas of the Public
Trust, and wildlife habitat protected by the Endangered Species Act . Another purpose of the Model
Ordinance, located in Section 1.3.J, is to "Retain the natural channel, shoreline, and floodplain creation
processes and other natural floodplain functions that protect, create, and maintain habitat for threatened
and endangered species." Therefore, it is the intent of the Model Ordinance to ensure that all development
proposals located within the regulatory Flood Hazard Areas adequately assess potential impacts to fish and
wildlife species and their habitats protected by the ESA. The Model Ordinance and the Regional Guidance
document were developed to address potential impacts to all ESA-listed species, which are described in
further detaii later in this report. As stated on Page 2 of the Regional Guidance document, "There are only
two circumstances where a habitat assessment would not be required:
1. Projects that are listed as exempt from conducting a habitat assessment in the community's
floodplain management ordinance; and
2. Projects that have undergone Section 7 consultation under the ESA in order to obtain a federal
permit."
Pursuant to the Habitat Assessment Flow Chart included on page 7 of the Regional Guidance document
(attached as Figure 1 of this report), this detailed Floodplain Habitat Assessment is required because the
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City of Yelm,Washington (Tax Parcel#227192403000) Page 1
proposed project is located in a regulated FEMA floodplain, a Biological Evaluation has not been prepared for
the project, NMFS and/or USFWS have not determined concurrence with Section 7 of the ESA, and the
proposed development project is not considered an allowed activity per the definitions of the Regional
Guidance document. Therefore, Wetlands & Wildlife, Inc. was retained by the applicant to conduct a
Floodplain Habitat Assessment per the FEMA guidelines. The format and contents of this report conform to
the standards set forth in the FEMA Regional Guidance document.
INTRODUCTION AND BRIEF SITE DESCRIPTION
This report is related to real property which is located northwest of the intersection of Rhoton Road SE and
Northern Pacific Road NW in the City of Yelm, Washington (located in a portion of Section 19, Township
17N, Range 02E, W.M.). The Thurston County tax parcel number for the property follows: 22719240300.
Per information obtained from the Thurston County Assessor's Office, the site encompasses approximately
7.51 acres and is zoned for Industrial use. The property is currentiy owned by Randy and Linda Weber,
Vehicular site access is gained from the east via Rhoton Road SE, as shown on the attached Project Vicinity
& Action Area Map (Figure 2). The property is located within the Nisqualiy River Watershed and the Water
Resource Inventory Area(WRIA) 11.
Portions of the subject site are mapped as being located within the regulated FEMA flood hazard areas (100-
year floodplain)associated with Yelm Creek,which is located along the western border of the subject property
and is considered a Type N stream (Type 5 stream per City of Yelm). The project is not exempt from the
requirements of the model ordinance and has not undergone Section 7 ESA consultation as discussed above.
Therefore, the City of Yelm has informed the applicant of their requirement to prepare a detailed Floodplain
Habitat Assessment on the subject property per the requirements of the FEMA Model Ordinance and
Regional Guidance documents. Wetlands & Wildlife, Inc. was retained by the applicant to conduct a
Floodplain Habitat Assessment per the FEMA guidelines and to produce this report. The format and contents
of this report conform to the FEMA Regional Guidance document.
Natural Resource Conservation Service Soils Description:
The Natural Resources Conservation Service (NRCS) mapped the subject property as being underlain by
Spanaway gravelly sandy loam, 0 to 3 percent slopes.
Spanaway gravelly sandy loam, 0 to 3% slopes is described by the NRCS as a moderately deep,
somewhat excessively drained soil on terraces and outwash plains. This soil formed in volcanic ash over
gravelly oufinrash. The surface layer is gravelly sandy loam from 0 to 15 inches below the surface. From 15
to 20 inches below the surface, soils are very gravelly sand. The subsoil in extremely gravelly sand from 20
to 60 inches below the surface. Available water capacity of this soil is low. Spanaway and similar soils
comprise this entire unit.
METHODOLOGIES OF THIS FLOODPLAIN HABITAT ASSESSMENT
Wetlands & Wildlife, Inc. conducted site visits to the subject property on February 18, 2013 and May 9,
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2013 for the purpose of evaluating the proposed project related to current federal, state, and local
environmental regulations. The site visit included a detailed review of the subject property. In addition to
assessing the subject site, Wetlands & Wildlife, Inc. also visually assessed the surrounding properties for
other types of Criticai Areas as defined by the Yelm Municipal Code, such as wetlands, streams, and Fish
and Wildlife Habitat Conservation Areas.
Wetlands & Wildlife, Inc. evaluated the subject site and the surrounding vicinity, using the methodologies
described in the FEMA Regional Guidance document and the FEMA Model Ordinance. The Advanced
Traininq Manual for Bioloqical Assessment Preparation produced by the Washington State Department of
Transportation was also examined for use of this project. Although this is not a transportation project, many
components of the Biological Assessment Advanced Training Manual are applicabie to Floodplain Habitat
Assessments for construction-related projects.
Wetlands & Wildlife, Inc. used methodologies described in Determininq the OrdinaN Hiqh Water Mark on
Streams in Washinqton State (Washington Department of Ecology Publication #08-006-001, April 2008) to
make a determination regarding the Ordinary High Water Mark (OHWM) of Yelm Creek, located along the
western boundary of the subject site.
The methodologies described in the Washinqton State Wetlands Identification and Delineation Manual
(Washington State Department of Ecology Publication #96-94, March 1997), the U.S. Army Corps of
Enqineers Wetland Delineation Manual (produced in 1987), and the U.S. Armv Corps of Enqineers
Reqional Suqplement to the Corps of Enqineers Wetland Delineation Manual: Western Mountains, Vallevs,
and Coast Reqion (produced in May 2010 and hereinafter referred to as "the Corps Regional Supplement")
were applied. The Corps Regional Supplement is designed for concurrent use with the 1987 Corps Wetland
Delineation Manual and all subsequent versions. The 2010 Regional Supplement provides technical
guidance and procedures for identifying and delineating wetlands that may be subject to regulatory
jurisdiction under Section 404 of the Clean Water Act. Where differences in the two documents occur, this
Regional Supplement takes precedence over the Corps Manual for applications in the Western Mountains,
Valleys, and Coast Region. The methodologies in these documents were used to make a determination
regarding the potential of regulated wetlands on the project site and areas within 300 feet of the proposed
project's limits of disturbance, as required by the City of Yelm. This review is necessary to determine if any
regulated critical areas exist outside of the project site which would cause associated buffer widths to
extend into the project area.
In addition to on-site field reviews, Wetlands& Wildlife, Inc. examined aerial photographs and topographical
data (elevation contours) on Thurston County's GeoData maps. Soil survey maps produced by the Natural
Resources Conservation Service (NRCS), National Wetlands Inventory maps produced by the U.S, Fish
and Wildlife Service (USFWS), SalmonScape fish distribution maps produced by the Washington
Department of Fish and Wildlife (WDFW), StreamNet fish distribution maps produced by Pacific States
Marine Fisheries Commission, the Washington State Department of Natural Resources Forest Practices
Application Review System Water Type Maps, and Priority Habitats and Species (PHS) maps produced by
WDFW.
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SITE VISIT FINDINGS
This property is currently undeveloped and is currently dominated by Scots broom (Cytisus scoparius,
nol/Upl), a non-native, invasive shrub. Smailer portions of the site also contain native vegetation such as
serviceberry (Amelanchier alnifolia, FacU), Oregon grape (Berberis nervosa, FacU), and colonial bentgrass
(Agrostis fenuis, Fac). The site is generaliy level and contains Yelm Creek, a Type 5 stream which does not
provide fish habitat within the Action Area (as defined below). A Category III ripariar� wetland on the
western boundary. Yelm Creek is The western portion of the property (adjacent to Yelm Creek) and the
eastern portion of the site are mapped as FEMA flood hazard areas (Floodway and Floodway Fringe), as
shown on project maps. No Wiidlife Habitat Conservation Areas for terrestrial wildlife species were located
during the site visits, and no mapped wildlife networks or terrestrial Wildlife Habitat Conservation Areas are
mapped as being located on the property or within 300 feet of the property.
PROPOSED PROJECT DESCRIPTION
Per the FEMA Regional Guidance document, all proposed projects within Flood Hazard Areas are required
to document how mitigation sequencing was followed. These mitigation sequencing standards are listed in
order of preference and effectiveness as follows: avoidance, minimization, restoration, and compensation,
Please see Map Sheet CA1.00 which depicts the project proposal on the project site. Due to the location
and extent of the flood hazard areas on the subject property, it would be difficult to derive a reasonable use
of the property which is zoned for industrial use while avoiding all impacts to the floodplain. Therefore, the
applicant is proposing to raise the elevation level of the eastern portion of the property through placement
of fill materials to an approximate elevation level of 335 feet above sea level. The eastern portion of the
property is located outside of all wetlands, stream, and fish and wildlife habitat conservation areas.
However, the eastern portion of the site is currently mapped as being located within a FEMA flood hazard
area. The applicant is proposing to fill 132,264 square feet of area located among the eastern portion of the
on-site flood hazard. Based on information from the project engineer, the project proposal will result in a
total volume of approximately 3,650 cubic yards of fill material being placed in this portion of #he flood
hazard area, and will modify the flood hazard area to eliminate this area from the floodplain of Yelm Creek.
During this construction process, the applicant is proposing to scrape the topsoil from this proposed fill area
and stockpile the topsoil for future placement among the proposed restoration planting areas.
In order to provide equivalent potential flood storage capacity on the site, the applicant is proposing to
remove (cut) 3,650 cubic yards of existing soil (equivalent volume to that which is proposed for fill) from
83,350 square feet of area which is located among the western portion of the property. This project will
result in a balanced cut and fill volume, and the proposed cut will maintain the level of flood storage
capacity that currently exists on the site, while also creating a more connected floodplain for Yelm Creek.
After this project is completed, the Riparian Habitat Area associated with Yelm Creek will extend further
east on the property than it currently does, and will extend out to the eastern edge of the newly created
flood hazard areas (per YMC section 14.08.140.D.2.c.ii).
The proposed project will avoid impacts to Yelm Creek and the associated riparian wetland. However, the
proposal will resuit in unavoidable temporary grading impacts to much of the western portion of the
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property, including portions of the on-site buffer for Yelm Creek and associated wetland. The proposed
grading areas have been heavily disturbed in the past (dump truck piles of fill material can be seen in
several locations), contain large quantities of Scots broom (Cytisus scoparius, nol/Upl), and currently
provide a relatively low level of ecological functions and values. The vast majority of the proposed grading
areas are currently dominated by Scots broom, currently classified as a Class B noxious weed in
Washington State. All Scots broom within the project work areas will be removed and transported to an
approved off-site location as part of this project. To ensure that no loss of ecological functions and values
occurs on the site or within close proximity of Yelm Creek, the applicant is proposing to retain large patches
of existing native, intact trees and shrubs which are located among the northwestern portion of the site (see
Map Sheet CA1.00 for locations). After the grading efforts have been completed, the applicant is also
proposing to restore the entire 83,350 square feet of temporarily impacted Riparian Habitat Area by
planting native trees and shrubs as described below.
PROPOSED COMPENSATORY MITIGATION EFFORTS
To ensure that no loss of functions and values occurs to the flood hazard areas or on-site critical areas, the
applicant is proposing to restore the entire 83,350 square feet(1,91 acres)of temporarily impacted /graded
areas by planting native trees and shrubs. During grading, topsoil in the proposed cut area should be
reserved and stockpiled on-site. The topsoil should be replaced on the surface of the graded areas at a
minimum depth of six inches to ensure a suitable planting medium. Please see Map Sheet CA1.00 for a
depiction of the proposed restoration area on the subject site. Per industry standards and guidelines, this
mitigation proposal includes calculating required plant quantities by planting 60% of the mitigation area with
native trees and planting 40%of the mitigation area with native shrubs. The native trees are proposed to be
planted on 12-foot centers (spaced a minimum of 12 feet apart), while the native shrubs are proposed to be
planted on 6-foot centers (spaced a minimum of 6 feet apart) among the mitigation areas. Using this
approach, the applicant is proposing to plant a total of 348 trees and 924 shrubs among the buffer
restoration, as outiined in the table below.
Please see the table below which describes the proposed restoration plantings among the cut area:
Proposed Buffer Restoration Plantings(quantities based on 83,350 SF)
Common Name Latin Name Size S acin Quantit
1. Douglas fir Pseudotsuga menziesii 1�allon 12 ft. min 87
2. Big-leaf maple Acermacrophyllum 1- allon 12 ft. min 87
3.Oregon white oak Quercus garryana 1 allon 12 ft. min 87
4.Black cottonwood Populus balsamifera 1�allon 12 ft. min 87
5.Snowberry Symphoricarpos albus 1�allon 6 ft. min 154
6.Serviceberry Amelanchier alnifolia 1 gallon 6 ft. min 154
7. Hazelnut Corylus cornufa 1 gallon 6 ft. min 154
8.Nootka rose Rosa nutkana 1 alion 6 ft. min 154
9.Osobe Oemleria cerasiformis 1 gallon 6 ft. min 154
10.Oregon rape Berberis nervosa 1�allon 6 ft. min 154
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Prior to any earthwork within or near Critical Area buffers, temporary erosion and sediment control measures
(silt fence or similar best management practices) will be installed around the proposed disturbance limits to
minimize potential erosion from reaching the adjacent wetland and stream.
Piease see Map Sheet CA1.00 for a depiction of the proposed conceptual mitigation plan associated with the
required Critical Areas Variance on the project site.
The applicant is proposing to seed all bare ground areas which are temporarily disturbed as part of this project
immediately upon completion of the grading. To aid in soils stabilization, all bare ground areas within the
impacted buffer area shall be seeded to the grass seed mixtures below, or a similar grass seed mixture:
Common Name Latin Name Ibs./1,000 s.f.
Colonial bentgrass Agrostis tenuis 0.6
Red fescue Festuca rubra 0.3
White clover Trifolium repens 0.2
The silt fence and all erosion and sediment control measures will remain in place until the soil is sufficiently
stabilized to prevent erosion of soil in close proximity to Yelm Creek and the associated Category III
wetland.
ACTION AREA DESCRIPTION
The proposed work area is located in the Flood Hazard Area of Yeim Creek, located along the western
border of the subject site. The proposed work includes filling a portion of the flood hazard area in the
eastern part of the site and creating additional flood storage capacity in the western part of the site, nearer
to Yelm Creek. Following grading, the entire area of cut will be restored using native trees and shrubs.
As shown in the Estimated Noise Attenuation tables below, the Action Area for the specific project
components includes all terrestrial and freshwater environments within 100 feet of the proposed Work Area,
as that is the distance at which the project-related construction noise would attenuate to the ambient
(existing baseline) noise level. Please see the Project Vicinity and Action Area Map (Figure 2) for a
depiction of the Action Area related to this project. This Action Area is required to determine how project-
related activities may affect federally listed species which utilize the terrestrial and freshwater habitats
within the vicinity of the project.
Wetlands & Wildlife, Inc, defined the Action Area by estimating the distance at which project-related
construction noise would attenuate to the baseline noise level. This was accomplished by using the
following determining factors associated with this specific project: 1) estimated noise levels associated with
projected construction equipment; 2) estimated background (ambient) sound level; 3) soft site vs. hard site
conditions; 4) noise point source vs. line source; and 5) develop noise attenuation table for computing
distance of Action Area. Please see the project-specific tables below which were used to derive the Action
Area distance.
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ESTIMATED PROJECT-RELATED NOISE LEVELS
Construction Equipment Lmax at 50 feet from noise source
Roller 80 dBA
Dozer 82 dBA
Excavator 81 dBA
Dump truck 76 dBA
Service truck(pickup truck) 75 dBA
Estimated Project Lmax 85 dBA
Notes: 1. Lmax= highest projected sound level occurring during a noise event
2. Lmax data obtained from WSDOT Biological Assessment Preparation Assessment Advanced
Training Manual (Tables 7-1 and 7-4).
3, Combined Lmax derived from the rules for combining noise levels described in WSDOT
Biological Assessment Preparation Assessment Advanced Training Manual (Table 7-5), using the
3 loudest pieces of equipment for determining the Lmax.
ESTIMATED BACKGROUND AMBIENT NOISE LEVEL
Estimated Background Noise level at Work Area (due to the 50 dBA
suburban nature of the subject site
Estimated Background Noise level at Work Area (due to 80 dBA
re ular ship in truck traffic and school bus traffic nearb
Estimated back round noise 80 dBA
Notes:
1 e Environmental background noise levels obtained from WSDOT Biological Assessment Preparation
Assessment Advanced Training Manual (Tables 7-6). City-Data.com http://www.citv-data.com
estimates the population density in the vicinity of the project area to be between 2,834 people per
square mile which equates to an ambient noise level of 50 dBA as shown above.
2. Wetlands & Wildlife, Inc. was unable to find information regarding Average Daily Traffic (ADT) on
Rhoton Road SE adjacent to the subject site. Per Table 7-1 of the training manual this would
equate to 50 dBA. However due to the proximity to industrial uses including a shipping and
receiving facility and a school bus yard, it is assumed that this area receives regular heavy vehicle
traffic. Per Table 7-1 of the training manual this would equate to 90 dBA (heavy trucks). Because
the actual level of truck traffic is unknown, a conservative estimate of 80 dBA was assumed for the
background noise level at the site due to industrial use and regular truck traffic.
ESTIMATED NOISE ATTENUATION RATES FOR PROJECT WORK AREA
Distance from Pro'ect Area ft) Pro'ect-Related Noise Levels -7.5 dBA) Background Noise Level
50 85 dBA 80 dBA
**100** 78.5 dBA 80 dBA
Notes: 1.The noise created from the project's construction equipment is considered a point source noise. The
standard reduction for point source noise is 6 dBA per doubling distance from the source. The
noise receiving area located outside of the Project Area is considered a soft site and is absorptive
of noise energy. Absorptive ground results in an additional 1.5 dBA reduction per doubling of
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distance as noise spreads from the source. Therefore, the reduction of 7.5 dBA per doubling
distance was used to determine the approximate noise level at the Project Area.
Per the above tables, the distance at which the project-related construction noise attenuates (declines) to a
noise level equal to or less than the background noise of 80 dBA level is 100 feet. Please note that project-
related noise is not the only factor used to determine the Action Area. Additional potential effects were
considered to determine the Action Area (i.e. clearing of vegetation, grading, placement of fill, potential
contaminants, etc.). Based on review of all project-related factors, the temporarily elevated noise levels is the
factor that would have the greatest potential to affect species which use the terrestrial and freshwater
environments in the project vicinity. Therefore, Wetlands & Wildlife, Inc. defined the Action Area as extending
100 feet from the Work Areas, as shown on the attached Project Vicinity&Action Area Map (Figure 2).
PROTECTED AREA DESCRIPTION
The Protected Area is defined by the Regional Guidance document and the Model Ordinance as those lands
that lie within the boundaries of the floodway, the riparian habitat zone (RHZ), and the channel migration area
(CMA).The Protectetl Area as defined by FEMA encompasses portions of both the western and eastern parts
of the subject property. In this instance, the edge of the mapped floodway and the Protected Area are one and
the same. The RHZ includes the water body and adjacent lands, measured perpendicularly from the Ordinary
High Water Mark (OHWM) on both sides of the water body. Yelm Creek is considered a Type N stream with
stable slopes, and therefore the RHZ associated with this water body includes areas within 150 feet of the
OHWM. The mapped floodway and the watercourses used to determine the Protected Area for this project
are depicted in Figure 3 (Project Area Map).
HABITAT AREA NARRATIVE
Please see the attached Habitat Area Map (Figure 4) for a depiction of habitat types described in this
section. The subject property is undeveloped with typical vegetation represented by a canopy of
serviceberry (Amelanchier alnifolia, FacU), Scots broom (Cytisus scoparius, nol/Upl), with colonial
bentgrass (Agrosfis tenuis, Fac) and common vetch (Vicia sativa, Upl) in the understory, A patch of non-
native black locust (Robinia pseudoacacia, Nol/Upl) is also present in the northwestern portion of the
subject property. Yelm Creek and an associated Category III wetland are located along the western border
of the site.
The surrounding properties are represented by a mixture of industrial use and prairie/ pasture that is being
invaded by Scots broom. While the prairie habitat is important for a wide variety of wildlife species, the
encroachment of invasive species alters the vegetative composition and function of these areas and
diminishes their habitat value.
Yelm Creek on the western border of the site provides a movement corridor for wildlife as well as valuable
spawning and rearing habitat for the ESA listed fish species in its downstream reaches (outside of the 100
foot action area).
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ENDANGERED AND THREATENED SPECIES LISTS
The National Oceanic and Atmospheric Administration's National Marine Fisheries Service (NMFS) has
jurisdiction over the species listings for marine animals and anadromous fish species. The following list
includes all species identified as endangered or threatened within Thurston County, Washington which are
protected under NMFS'jurisdiction:
1. Humpback whale(Megaptera novaeangliae); Endangered status
2. Southern resident Orca whale (Orcinus orca); Endangered status
3. Steller sea lion of western U.S. (Eumetopias jubatus); Endangered status
4. Puget Sound/Georgia Basin Bocaccio(Sebastes paucispinis); Endangered status
5. Puget Sound/Georgia Basin Canary rockfish (Sebastes pinniger); Threatened status
6. Puget Sound/Georgia Basin Yelloweye rockfish (Sebastes rubberimus); Threatened status
7. Puget Sound Chinook salmon (Onchorhynchus tshawytscha); Threatened status
8. Puget Sound Steelhead trout(Onchorhynchus mykiss); Threatened status
The United States Fish and Wildlife Service (USFWS) has jurisdiction over the species listings for freshwater
fish species and all other species. The following list includes all species identified as endangered or
threatened within Thurston County,Washington which are protected under USFWS'jurisdiction:
1. Coastal-Puget Sound DPS Bull Trout(Salvelinus confluentus);Threatened status
2. Marbled murrelet(Brachyramphus marmoratus);Threatened status
3. Northern spotted owl (Strix occidentalis caurina); Threatened status
USE OF THE ACTION AREA BY ENDANGERED OR THREATENED SPECIES
Humpback whales, Orca whales, Steller sea lions, Bocaccio, Canary rockfish, and Yelloweye rockfish are not
present within the proposed project's Action Area due to a lack of marine or estuarine habitat areas.
Steelhead, Bull trout, Marbled murrelets, and spotted owls, are not present within the project's Action Area
due to the lack of habitat requirements for these species.
Marbled murrelets and Northern spotted owis typically breed in old-growth or late successional coniferous
forests. Both of these species typically uses areas where vast connected habitat exists, and they typically
avoid urban/suburban areas due to their aversion to human activity (noise, developments, etc.). Based on the
WDFW Priority Habitat and Species maps, no Marbled murrelet or spotted owl breeding sites (nests) are
located among the project's Action Area. The nearest spotted owl nest site is located approximately 20 miles
to the east of the subject site. Due to the lack of old-growth or late successional habitat among the project's
Action Area, Wetlands & Wildlife, Inc. does not expect either of these bird species to occupy breeding/nesting
habitat among the Action Area.
Based on review of the WDFW's PHS database and Streamnet (fish data for the Northwest), no endangered
and threatened species are known to utilize the project's Action Area. Critical habitat is defined in section
3(5)(A) of the ESA as "(i) the specific areas within the geographical area occupied by the species...on which
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are found those physical or biological features (I) essential to the conservation of the species and (II) which
may require special management considerations or protection; and (ii)specific areas outside the geographical
area occupied by the species...upon a determination by the Secretary [of Commerce (Secretary)] that such
areas are essential for the conservation of the species."
ESSENTIAL FISH HABITAT DISCUSSION
The Magnuson-Stevens Fishery Conservation and Management Act (MSA) includes a mandate that NMFS
must identify essential fish habitat(EFH)for federally managed fish species. The Pacific Fishery Management
Council has designated EFH for the Pacific salmon fishery, federally managed ground fishes, and coastal
pelagic fisheries (NMFS 2010). The majority of EFH is marine-based, though EFH is also designated for
inland portions of the range for anadromous Pacific salmon species. The MSA defines EFH as "those waters
and substrate necessary to fish for spawning, breeding, feeding, or growth to maturity." Furthermore, the
Pacific Fishery Management Council states that "EFH for the Pacific coast salmon fishery means those
waters and substrates necessary for salmon production needed to support a long-term sustainable salmon
fishery and salmon contributions to a healthy ecosystem". To achieve that level of protection, EFH must
include all those streams, lakes, ponds, wetlands, and other currently viable water bodies and most of the
habitat historically accessibie to salmon in Washington, Oregon, Idaho, and California." Per these definitions,
because Yelm Creek historically supported salmon through most of its reach, and continues to support
salmon in its lower reaches it is considered EFH.
14NALYSIS OF EFFECTS ON ESA-LISTED SPECIES
Pursuant to the Code of Federal Regulations (CFR) Title 50, Subchapter 402, Sections 02 and 14(h)(2),
Wetlands & Wildlife, Inc, reviewed the Action Area for potential impacts to ESA-listed species. The Action
Area was examined for the potentiai direct and indirect effects of the proposed project, as described in
Section 4.1 of the FEMA Regional Guidance document. Potential direct effects include permanent
clearing/grading of a habitat area,temporary clearing/grading of a habitat area during construction, permanent
structures or other newly created impervious surfaces within a habitat area, modification of a stream channel
or side channel, removal or changes in large woody debris, and diversion of water that will change the
hydrology of the area. Potential indirect effects include the following: disrupting high or low stream flows,
including impacts from stormwater runoff; contributing to sedimentation that fills in substrate; blocking a
corridor that connects habitat areas; increases in water body temperatures through removal of riparian
vegetation and decreased shading; disturbance or riparian vegetation; moving or removing large woody
debris; destabilizing bank and modifying channel migration processes; bank stability; channel migration;
hyporheic zones; and modifying wetland areas through disturbance of adjacent vegetation or modification of
hydrology,
Potential Direct Effects to ESA-listed Fish Species:
No impacts to a habitat area will occur through implementation of this proposed project. This project will
involve extensive clearing and grading to create the building pad and the compensatory flood storage area.
The vegetation that will be disturbed contains a high percentage of invasive species (Scots broom (Cytisus
Wetlands& Wildlife, lnc. June 10,2013
Weber Property--FEMA Floodplain Habitat Assessment Report
City of Yelm,Washington (Tax Parcel#227192403000) Page 10
scoparius, nol/Upl) and provides a relatively low level of functions. Foliowing grading the disturbed area will
be restored with native trees and shrubs. The proposed grading will occur a minimum of 450 feet away from
known habitat for Steelhead trout (Onchorhynchus mykiss), and will occur during a portion of the year when
the on-site channel of Yelm Creek is dry. No modifications will occur to any water body within the Action Area
and no removal or changes in large woody debris (LWD)will occur. As a result, the proposed project will not
result in any direct effects to fish species.
Potential Indirect Effects to ESA-listed Fish Species:
No disruptions or changes to the existing high or low stream flows will to occur as a result of this proposal.
Through avoidance of any in-water work, the implementation of BMP erosion control measures, and the
distance of the proposed work from critical habitat, we do not anticipate sediment or pollutants from the
project site entering surface waters. Therefore, we do not anticipate any water quality changes to surface
waters surrounding the property. No water quality impacts are anticipated to any waters throughout the Action
Area. The proposed project will not block any habitat corridors for listed species. No LWD will be impacted.
While some impacts to riparian vegetation will occur, the vegetation to be impacted contains a high
percentage of non-native species.All impacted areas will be restored with native trees and shrubs, resulting in
an improvement to the existing condition, The proposed project will have no impact on any natural channel
migration areas and bank stability will not be impacted in any way. This proposal will increase the vegetative
species diversity and eventually the vegetative structure on the site. Therefore, the proposed project will not
result in any indirect effects to fish species.
Potential Impacts to ESA-listed Wildlife Species:
Earth moving equipment used during the implementation of this project will produce temporarily elevated
noise levels above the existing background sound levels. However, no listed salmonids, no terrestrial Wildlife
Habitat Conservation Areas (nests) of listed avian species are located among the Action Area and no listed
terrestrial species are mapped as occurring within the Action Area.
Due to the relatively short duration of the project and the proposed restoration measures, the temporarily
elevated noise levels are not expected to create any direct or indirect effects to any ESA-listed terrestrial or
aquatic wildlife species.
Potential Impacts to Essential Fish Habitat(EFH):
Although EFH does exist within the defined Action Area,the implementation of BMP erosion control measures
and the lack of an above-ground surface water connection alleviate the potential for negative impacts
associated with the proposed project. This project will not result in any direct or indirect impacts to EFH, and
will maintain the existing condition of the site and the adjacent areas.
DETERMINATION OF EFFECTS ON ESA-LISTED SPECIES
Coastal-Puget Sound DPS bull trout, Puget Sound ESU Chinook salmon, and Puget Sound DPS steelhead
trout are not present within the Action Area due to a lack of on-site habitat requirements for these species.
Therefore, the proposed project will have No Effect on Puget Sound bull trout, Puget Sound Chinook salmon,
Wetlands& Wildlife, Inc. June 10, 2013
Weber Property--FEMA Floodplain Habitat Assessment Report
City of Yelm,Washington (Tax Parcel#227192403000) Page 11
or Puget Sound steelhead trout. Similarly, the proposed project will have No Effect on the critical habitat that
has been designated for these ESA-listed fish species.
Humpback whales, orca whales, Steller sea lions, bocaccio, canary rockfish, and yelloweye rockfish are
precluded from the Action Area due to their marine habitat requirements. Therefore, the proposed project will
have No Effect on those listed species,
Marbled murrelets and northern spotted owls are not likely present within the Action Area due to an apparent
lack of suitable habitat to suit their life history requirements. Therefore, the proposed project will have No
Effect on those�isted species.
SUMMARY OF REVIEW FINDINGS
The current floodplain location is not located in a landscape context where it is able to provide the most
beneficial ecological functions to Yelm Creek. The current floodplain located among the eastern portion of
the site is nearly entirely disconnected from Yelm Creek due to a significant amount of man-made
disturbances such as fill, impervious surfaces, and industrial land use activities (see Figure 4 attached to
this report). The proposed increase in floodplain area closer to Yelm Creek would allow for more effective
and natural floodplain processes to occur. In addition, the applicant is proposing to limit the creation of the
compensatory flood storage area to portions of the site that are currently dominated by non-native, invasive
vegetation (Scots broom) and therefore provide a low level of ecological functions. By creating
compensatory flood storage areas which are in closer proximity to Yelm Creek, preserving native
vegetation on the site, and restoring/enhancing the flood storage area with beneficial native trees and
shrubs, it appears that the proposed project would ultimately increase the ecologicai functions and values
across the project site.
Pursuant to YMC section 14.08.120.E.6, the proposed project will not block any existing side channels of
Yelm Creek. The proposed project will not inhibit natural channel migration processes and will not be
located within a channel migration zone.
There will be no loss of floodplain water storage capacity or increase in stormwater runoff to adjacent
properties as a result of this project. In fact, this project will significantly increase the connectivity between the
existing eastern portion of the floodplain and Yelm Creek. Some scrub-shrub vegetation will be impacted
during the proposed project activities, and the applicant is proposing to replace all impacted vegetation with
native trees and shrubs as outlined in this report. Floodplain refugia will be relocated from the eastern
portions of the site to the western portions of the site, and will function more effectively during times when the
area is flooded (due ko a direct connection to Yelm Creek). There is no above-ground hydrologic connection
among the work area, and the work area will be surrounded by temporary erosion and sediment control
measures. Therefore, the project will have no effect on the EFH within the Action Area. No water quality
impacts (increase in sedimentation or pollutants) are expected to occur as a result of this project, and
temporary erosion and sediment control best management practices will remain in place and functioning until
all soils are stabilized on the project site. If all mitigation measures are implemented as stated in this plan and
the associated Criticai Areas Report & Proposed Mitiqation Plan, this project will result in an increase in
ecologicai functions provided by the subject site.
Wetlands& Wildlife, Inc. June 10, 2013
Weber Property--FEMA Floodplain Habitat Assessment Report
City of Yelm,Washington (Tax Parcel#227192403000) Page 12
Pursuant to the Habitat Assessment Flow Chart included on page 7 of the Regional Guidance document
(attached as Figure 1 of this report), this detailed Floodplain Habitat Assessment is required because a
portion of the proposed project is located in a regulated FEMA floodplain, a Biological Evaluation has not
been prepared for the project, NMFS and/or USFWS have not determined concurrence with Section 7 of the
ESA, and the proposed development project is not considered an allowed activity per the definitions of the
Regional Guidance documento However, based on the analysis and findings mentioned previously, it is the
professional opinion of Wetlands & Wildlife, Inc. that the proposed project will not cause an adverse impact to
any species that are protected under the Endangered Species Act, in fact this project wiil have a beneficial
effect. After approval of this Floodplain Habitat Assessment, the property owner will be able to proceed with
the proposed project obtaining all required permits (see Figure 1).
LIMITATIONS AND USE OF THIS REPORT
This FEMA Floodplain Habitat Assessment Report is supplied to Randy and Linda Weber as a means of
determining compliance with the Floodplain Habitat Assessment and Mitigation Regional Guidance
document produced by FEMA. This report is required by the City of Yelm to obtain applicable permits for
the proposed project described above. This report is intended to provide information deemed relevant in the
applicant's attempt to comply with the environmental regulations currently in effect. No attempt has been
made to determine hidden or concealed conditions. If hidden or concealed conditions arise, the information
contained in this report may change accordingly. This Floodplain Habitat Assessment is based upon
review of pertinent background literature, familiarity with the pro�ect site and the biological conditions of the
general vicinity, best professional judgment, and many years of experience as a professional ecologist in
different capacities throughout the Puget Sound region. This review only includes an assessment to
determine compliance of the proposed project with the fish and wildlife habitat protection portions outlined
in the FEMA Model Ordinance and supporting Regional Guidance document discussetl hereino The laws
applicable to this assessment and environmental regulations are subject to varying interpretations and may
be changed at any time by the courts or fegislative bodies. The work for this report has conformed to the
standard of care employed by professional ecologists in the Puget Sound region. No other representation
or warranty is made concerning the work or this report, and any implied representation or warranty is
disclaimed. This report constitutes a proposal and does not guarantee approval by the federal, state,
and/or local jurisdiction(s). Therefore, the proposal associated with this report shali not commence until all
applicable permits have been received from all appropriate agencies. If any questions arise regarding this
review or report, please contact me directly at(425) 337-6450.
Wetlands& Wildlife, Inc.
���
Scott Spooner
Owner 1 Principal Wetland &Wildlife Ecologist
Wetlands& Wildlife, lnc. June 10, 2013
Weber Property--FEMA Floodplain Habitat Assessment Report
City of Yelm,Washington (Tax Parcel#227192403000) Page 13
REFERENCES AND LITERATURE REVIEWED
Bjornn, T.C, and Reiser, D,W. 1991. Habitat requirements of salmonids in streams. Am. Fish. Soc, Spec.
Publ. 19: 83-138.
Citv of Yelm Municipal Code. Chapter 14.08 (Critical Areas and Resource Lands).Yelm, Washingtono
Cowardin, et al, 1979. Classification of Wetlands and Deepwater Habitats of the United States. U.S.D.I.
Fish and Wildlife Service. FWS/OBS-79/31. December 1979.
Federal Register. Endangered and Threatened Wiidlife and Plants; Revised Designation of Critical Habitat
for Bull Trout in the Coterminous United States: A Rule by the Fish and Wildlife Service on �0/18/2010.
http�//www federalreqister qov/articles/2010/10/1812010-25028/endanaered-and-threatened-wildlife-and-
plants-revised-desiqnation-of-critical-habitat-for-bull-trout#p-427.
FEMA Region 10. Floodplain Habitat Assessment and Mitiqation Draft Reqional Guidance. April 2011.
http�//www fema qov/pdf/aboutlreqions/reqionx/nfip esa quidance docs/habitat assessment quide final.q
df. Website last visited on June 6, 2013.
FEMA Region 10, Model Ordinance for Floodplain Management under the National Flood Insurance
Program and the Endangered Species Act. January 2012.
National List of Plant Species that Occur in Wetlands, Northwest Region (Region 9). 1996. U.S.
Department of the Interior, Fish and Wildlife Service.Washington, D.C.
National Marine Fisheries Service (NMFS). 2010. Endangered and Threatened Species under NMFS'
Jurisdiction. (Updated March 13, 2013).
Pacific Fishery Management Council. Identification and Description of Essential Fish Habita#, Adverse
impacts, and Recommended Conservation Measures for Salmon (Appendix A). 1999,
http�//www pcouncil orq/wp-contentluploads/99efh1.pdf#paqe=10. Website last visited on June 5, 2013.
Thurston County Geodata Center. http://www.qeodata.orq/. Website last visited on June 6, 20�3.
SalmonScape. Interactive Mapping website administered by the Washington Department of Fish and
Wildlife. http°//wdfinr wa qov/maqpinq/salmonscapelindex.html. Website last visited on June 5, 2013.
StreamNet. Fish Data for the Northwest. Administered by the Pacific States Marine Fisheries Commission,
http://www.streamnet.orq/. Website last visited on June 5, 2013.
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)," ERDC/EL TR-10-3,
U.S. Army Engineer Research and Development Center, Vicksburg, MS.
Wetlands& Wildlife, lnc. June 10,2013
Weber Property--FEMA Floodplain Habitat Assessment Report
City of Yelm,Washington (Tax Parcel#227192403000) Page 14
U.S. Fish and Wildlife Service (2010). Listed and Proposed Endangered and Threatened Species and
Critical Habitat; Candidate Species; and Species of Concern in Thurston County as prepared by the U.S.
Fish and Wildlife Service Washington Fish and Wildlife Office. (Revised December 15, 2010).
U.S. Fish and Wildlife Service. National Wetlands inventory Wetlands Mapper.
http�//107 20 228 18NVetlands/WetlandsMapper.html#. Last updated May 22, 2013. Website last visited on
June 2, 2013.
Washington State Department of Ecology. Washington State Wetlands Identification and Delineation
Manual. Pubiication#96-94. March 1997.
Washington State Department of Fish and Wildlife. Priority Habitats and Species map for Section 19,
Township 17 North, Range 02 East. http://wdfw.wa.gov/conse�vation/phs/,
Washington State Department of Fish and Wildlife. Prioritv Habitat and Species Recommendations:
Mazama Pocket Gopher. Revised March 2011.
Washington State Department of Transportation. Biological Assessment Preparation for Transportation
Projects - Advanced Training Manual. (Version 2013).
http://www.wsdot.wa.qov/Environment/Bioloqv/BAIBAquidance.htm#Manual. Website last visited on June
9, 2013.
Web Soil Survey. United States Department of Agr�culture. Natural Resources Conservation Service.
http�//websoilsurvev.nres.usda.qov/app/HomePaqe.htm.Website last visited on June 5, 2013.
Wetlands& Wildlife, lnc. June 10,2013
Weber Property--FEMA Floodplain Habitat Assessment Report
City of Yelm,Washington (Tax Parcel#227192403000) Page 15
�
FIGURE 1 : HABITAT ASSESSMENT FLOW CHART
NOTE: THIS DOCUMENT IS LOCATED ON PAGE 7 OF THE FEMA FLOODPLAIN HABITAT ASSESSMENT AND MITIGATION
REGIONAL GUIDANCE DOCUMENT PRODUCED IN APRIL OF 2011 FOR USE IN FEMA REGION 10
is the p►�oject in the
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flas a Br'otogical E'va/r.ration b�e�prepared p
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NO �
ls th�dev�lapment prrs�ect �
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R�destgn the prajecf ar Proceed with ihe praject, �
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MR. RANDY WEBER HABITAT ASSESSMENT FLOW CHART Drawn By: �p,qp SHEET:
(PROPERTY OWNER) WEBER PROPERTY(CITY OF YELM,WA) Scott Spooner FIGURE 1
�� 26550 SE 354th PLACE THURSTON COUNTY PARCEL#22719240300 Date: 6/10/13
WETLANDS�WILDLIFE BLACK DIAMOND, WA 98010 Revision#: N/A
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PREPARED FOR: PROJECT VICINITY f't ACTION AREA MAP Drawn By:
MR.RANDY WEBER yyeber Property (City of Yelm, WA) Scott Spooner �`P SHEET:
(PROPERTY OWNER) FIGURE 2
26550 SE 354th PLACE Thurston Co. Parcel #22719240300 Date: 06/10/13
WETLANDS WILDLIFE BLACK DIAMOND,WA 98010 Revision#: N/A
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No channel mirgation hazard areas or terrestrial
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Wf�W Job: N1305
PREPARED FOR• PROJECT AREA MAP
MR.RANDY WEBER • Drawn By: M,qp SHEET:
(PROPERTY OWNER) \Neber Property (City of Yelm, WA) Scott Spooner FIGURE 3
26550 SE 354th PLACE Thurston Co. Parcel #22719240300 Date: 06/10/13
WETLANDS�WILDLIFE BLACK DIAMOND,WA 98010 Revision#: N/A
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w�w �o�: N1305
� PREPARED FOR: HABITAT AREA MAP Drawn By;
Y MR,RANDY WEBER yyeber Property (City of Yelm, V�/A) Scott Spooner �`P SHEET:
t (PROPERTY OWNER) FIGURE 4
, 26550 SE 354th PLACE Thurston Co. Parcel #22719240300 Date: 06/10/13
WETLANDS��ILDLIFE BLACK DIAMOND,WA 98010 Revision#: N/A
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FIGURE 5: PROPOSED PROJECT MAP
NOTE: PLEASE SEE ADDITIONAL PROJECT RESOURCES PREPARED BY BARGHAUSEN CONSULTING ENGINEERS,INC.
PLEASE ALSO SEE THE ASSOCIATED FEMA FLOODPLAIN HABITAT ASSESSMENT REPORT(TEXT)AND THE
CRITICAL AREAS REPORT£t PROPOSED MITIGATION PLAN PREPARED BY WETLANDS 8 WILDLIFE,INC.
FOR FURTHER DISCUSSIONS REGARDING THE PROPOSED PROJECT.
PROPOSED CUT AREA PROPOSED BUFFER pROPOSED FILL AREA
(83,350 SF IN AREA; RESTORATION ARE
(83,350 SF);SEE PROJECT (132,264 SF IN AREA;
3,650 CY IN VOLUME) REPORTS FOR DETAILS 3,650 CY IN VOLUME)
AREA OF DENSE TREES PROPOSED EASTERN EDGE OF
AND SHRUB RIPARIAN HABITAT AREA
(RETAIN VEGETATION AND FLOODPLAW(AFTER
IN THESE AREAS) \ PROJECT C PLETION) .
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PROJECT PROPOSAL) PERMANENT CRITICAL AREA
SIGNS ON EASTERN EXTENT OF
PROPOSED RIPARIAN
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� DATA POINTS (4 TOTAL)
■ PROPOSED CRITICAL AREA SIGNS 0 200 400
WEtW Job: N1305
PREPARED FOR: PROPOSED PROJECT MAP
MR.RANDY WEBER Drawn By; �p SHEET:
(PROPERTY OWNER) Weber Property (City of Yelm, WA) Scott Spooner FIGURE 5
26550 SE 354th PLACE Thurston Co. Parcel #22719240300 Date: 06/10/13
WETLANDS " WILDLIFE BLACK DIAMOND,wa 9so�o
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