HomeMy WebLinkAboutSpecial Report (043)
Terry Steben
Wetland Delineation
and
Buffer Enhancement Report
Parcel # 940 500 006 and 940 500 007
April 2004
Prepared for:
Terry Steben
65 Huckleberry Place
Port Townsend, WA 98368
85650th Street
Port Townsend, Washington 98368
360 385-6432
dixie@cablespeed.com
Terry Steben
Wetland Delineation
And
Buffer Enhancement Report
Parcel # 940 500 006 and 940 500 007
April 2004
Contents
Introduction
Description of Site
Applied Methodology
Washington State Wetland Identification and Delineation Manual
Soils
Vegetation
Hydrology
Classification
Determining Wetland Edges
Jefferson County Unified Development Code
Wetland Buffer Definition
Standard Buffer Requirements
Reducing Buffer Widths
Findings
Soils
Vegetation
Hydrology
Buffer Enhancement Plan
Stormwater Control
Summary
References
Appendix
Sheet #1 Location Map and Soil Survey of Jefferson County, Washington
Sheet #2 Findings Map
Sheet #3 Buffer Enhancement Plan with Reduced Buffer
Wetlands Rating Field Data Form
Data Forms, Routine Determination W A State Wetland Delineation Manual
Table # 1 Plant List and Landscape Specifications
Table #2 Re-seeding Recommendations and Quantities
Installation Specifications and Recommendations
Terry Steben
Wetland Delineation
And
Buffer Enhancement Report
Parcel # 940 500 006 and 940 500 007
April 2004
Introduction
At the request of Terry Steben a wetland delineation was conducted on April 13, 2004. A Level I
Assessment was conducted on March 22, 2004 prior to the purchase of the parcel to confirm the
presence of wetlands not mapped on the Jefferson County Critical Areas maps. A Type 5 Stream
has been mapped and is shown crossing the property. This mapping is in error, as the stream is
actually located off-site within a ravine designated as a park by the Cape George Community.
The stream will have an associated 50-foot buffer, which falls entirely within the public park
land. The goal of this wetland delineation was to determine wetland locations and associated
buffers that would restrict a building site location.
All wetlands within Jefferson County are subject to requirements outlined in the Jefferson
County Unified Development Code (UDC) dated January 1,2001. Land use restrictions will
apply to all future developments associated with this parcel.
Description of Site
. Legal Description: Parcel # 940 500 006 and 940 500 007 Section 13, Township 30, Range
2W W.M. .900 Acres
. Location: Cape George Village #3, Dennis Street, right on Marine View Avenue (Appendix
Sheet # 1: Location Map)
. Soils: Cme Clallam sandy gravelly loam (Appendix Sheet # 1: Soil Map)
. Slopes: 65% to 15% slopes (as recorded in the field)
The subject property is adjacent to a steep ravine, which contains a Type 5 Stream with an
associated 50-foot buffer. Field measurements reveal that the parcel boundaries fall outside all
buffer restrictions (April 13, 2004). Located on the parcel is a Class II wetland, with 100-foot
buffers, that lies within a distinct swale on the southern portions of Lots 6 and 7. There is an
elevation gain of 27 feet from the stream bank and an elevation gain of about 7 feet from the
wetland to a proposed building location. The rolling topography of this property is forested with
large alders, maples, and cedars, with a healthy understory of native shrubs. Access to the
proposed building site, which is on the northwest portion of Lot 7, is across the wetland on an
existing road. The onsite wetland is along the southern portions of Lots 6 and 7 adjacent to the
cul-de-sac of Marine View Ave.
Applied Methodology
The following resources were consulted for this project:
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. Jefferson County Critical Areas Map Wetlands (1995) and ESA Maps (Stream and Wetlands)
. Aerial Photographs (Soil maps pre-1975, and 2000, included in Appendix)
. Jefferson County Unified Development Code (January 1,2001)
. Soil Survey of Jefferson County (U.S. Soil Conservation Service 1975)
. National Wetland Inventory Map
. Washington State Wetland Identification and Delineation Manual
. National List afPlant Species That Occur in Wetlands: Northwest (Region 9)
Washington State Wetland Identification and Delineation Manual
Fieldwork to determine the actual wetland boundaries was conducted according to the methodology
outlined in the Washington State Wetland Identification and Delineation Manual (Department of
Ecology #96-94). Chapter 173-22 of the Washington Administrative Code requires that all
wetlands within the State of Washington be delineated using this manual.
The methodology outlined in the Washington State Wetland Identification and Delineation Manual
requires examination of the three parameters for a positive wetland determination: hydric soils,
hydrophytic vegetation, and hydrology. For an area to qualify as ajurisdictional wetland it must
have a positive indicator from all three parameters. All wetlands identified using this methodology
may be federally regulated, regardless of size.
Soils
A hydric soil is a soil that forms under conditions of saturation, flooding, or ponding lasting long
enough during the growing season to result in an anaerobic upper layer. Hydric soils favor the
growth and regeneration ofhydrophytic vegetation. The indicators for this type of soil include low
chroma, mottles, gleying, and high organic content within the upper 32 inches of the soil profile.
Holes were dug on the site and soil colors (including value and chroma) were recorded in the top 16
inches. Soil colors were analyzed using the Munsell Color Charts (1992).
Vegetation
Wetland plant species must constitute greater than 51 % of the total vegetation present to meet the
qualification as a site dominated by hydrophytic vegetation. Dominance of plant species is
determined by calculating actual aerial cover within a 30- foot radius for trees, a 10- foot radius for
shrubs, and a 6-foot radius for the herbaceous layer at each data point. Commonly occurring plant
species have been rated by the United States Fish and Wildlife Service (USFW) National List of
Plant Species That Occur in Wetlands: Northwest (Region 9) as to their frequency of occurrence
in wetlands and non-wetlands. During the fieldwork, each species was recorded and given a rating
based on indicator status and percent cover.
Hydrology
Wetland hydrology is defined in the Washington State Wetland Identification and Delineation
Manual as "areas that are periodically inundated or have soils saturated to the surface at some time
during the growing season." Areas must have seasonally inundated or saturated soil at least 12.5%
of the growing season. Indicators of hydrology include visual observation of inundation or soil
saturation, water-stained leaves, cracking of the soil surface, and/or sediment deposits. Positive
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signs of hydrology are often absent during the summer and fall months but can be inferred if there
are positive indicators of hydric soil and hydrophytic vegetation.
Classification
Wetland categorization was determined using the Washington State Department of Ecology
(DOE) Wetland Rating System (publication #93-74, August 1993), which assigns a numerical
value to any given wetland according to wetland size, quality of surrounding buffers, vegetation
diversity, wetland types, and habitat value. Wetlands are rated as entire systems and quite often
exceed project boundaries. Ratings range from Class I to Class IV; Class I is the highest quality
wetland and is not replaceable and therefore receives the largest buffers and highest protection.
Determining Wetland Edges
Wetland edges were determined by establishing two data points: one within the wetland which
contains positive indicators of all three of the wetland requirements: soils, hydrology, and
vegetation, and another data point outside the wetland, where one or all of the requirements were
not presetlt. Measurements were taken with a Chainman II hip chain.
Jefferson County Unified Development Code (January 2001)
Wetland Buffer Definition Section 3.6.9 (2):
A designated area adjacent to a wetland that protects, and is integral to the
wetland ecosystem. Buffers provide shading, input of organic debris, and coarse
sediment, room for variation in the stream or wetland boundaries, habitat to
wildlife, and protection from harmful intrusion necessary to protect the public
from losses suffered when the functions and values of aquatic resources are
degraded.
Standard Buffer Requirements 3.6.9 (5 iii):
Buffers shall remain naturally vegetated except where the vegetation has been
disturbed, invaded by highly undesirable species, or would substantially benefit
from the increased diversity of introduced (native) species. Where buffer
disturbance has occurred during construction, replanting with native vegetation
shall be required. Minor pruning of vegetation to enhance views and removal of
undesirable species (e.g. alders) may be permitted by the Director on a case-by-
case basis.
Reducing Buffer Widths 3.6.9 (6):
The Administrator may reduce the standard wetland buffer width, when the project
applicant demonstrates both of the following to the satisfaction of the Administrator:
i. Standard wetland buffer width averaging as set forth in this section is
unfeasible.
11. The project application includes a buffer enhancement plan using native
vegetation, which substantiates that an enhanced buffer will improve the
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functional attributes of the buffer to provide additional protection for the
functions and values.
Findings
The Jefferson County Critical Areas Map does not indicate the presence of wetlands on site. A
Class II wetland (29 points) was delineated during this assessment, measuring approximately 400
feet in length and varying in width from 10 to 90 feet. This Class II wetland will have associated
100-foot buffers measured perpendicular from the delineated edge (Jefferson County Unified
Development Code, Jan. 1,2001, 3-30 Buffers Table 3-4).
The wetland lies within an open swale that is defined by a distinct drop in topography. This
wetland receives stormwater from upslope properties in addition to water that is directed to the
wetland via a ditch and culvert along Marine View Avenue. Wetland vegetation requiring year-
round water was identified in this wetland (horsetails and water parsley). The driveway to access
the upland portions of the site appears to act as a berm. The widest part of the wetland is above
the access driveway, which appears to hold water since there is no culvert. The wetland below
the drive narrows to fewer than 20 feet.
Only the north edge of the wetland was delineated; the southern edge coincides with the property
boundaries. The wetland appears to terminate in a distinct channel that eventually joins the Type
5 Stream. At this point, water is diverted through a 24-inch buried pipe with an outlet on the
beach along Discovery Bay.
All wetlands and drainage corridors were flagged with orange plastic ribbon labeled "Wetland
Boundary," tied to vegetation along the drainage ditch at points 20 feet apart. The wetland edge is
contiguous with the drop in topography and distinct vegetation change. Flagging is labeled with
alphanumeric codes (AI through All). These data point locations, wetland edges, and buffers are
indicated on the Findings Map in the Appendix (Sheet #2).
Soils
Jefferson County Soil Survey (page 41) lists soils on site as ernC Clallam sandy gravelly loam.
This soil is not classified as a hydric soil on the Jefferson County Area Hydric Soil list (January
1991). However, wetlands have been recorded throughout Jefferson County in this soil type.
Wetlands often occur in the Clallam soil type since the clay layer is near the surface and water
will accumulate when there is soil disturbance or there is a distinct depression.
Even though the soils are not classified as hydric, data points and soil test pits confirmed the
presence of hydric soils in the wetland. The soils were low-chroma the entire depth of the soil
test, indicating frequent saturation and a rising water table. At Data Point #2 soil colors were
black (IOYR2/1 to 16 inches). At Data Point #1, upslope and to the north of Data Point #2, soils
were not hydric. Several 6-foot deep perk holes were dug on site; most holes revealed that the
soils consisted of sand to sandy loam the entire depth. This soil is extremely well drained and
did not indicate a regular rising water table (lOYR 3/3 to lOYR 4/4).
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Vegetation
The site contains a high diversity of plant species; below is a list of vegetation identified, along
with the indicator status for each species.
Scientific Name Common Name Status Layer
Wetland Plants
Upland Plants
FAC
FAC
FAC
OBL
FAC
GBL
FACW-
FAC+
FAC+
FAC
FAC+
Tree
Herb
Sed e
Sed e
Herb
Herb
Herb
Shrub
Shrub
Tree
Herb
F ACU Tree
F ACU Tree
F ACU+ Herb
NI Herb
NI Shrub
FACU Shrub
FACU Herb
F ACU Tree
F ACU Shrub
FACU Shrub
NI Herb
UPL Upland Species, FACU Facultative Upland SpecieslNon Wetland, FAC Facultative Species,
FACW Facultative Wetland Species, OBL Obligate Wetland Species, NI No Indicator Assigned
The qualifier of + or - further defmes the status of the species.
Plants classified according to the Fish and Wildlife Service, 1988,1993 Update
Hydrology
Water only needs to be present 20 days of the growing season for an area to qualify as a wetland.
The growing season is defined by the Jefferson County soil survey as March 12 to November 25.
Hydrology must be present for 12.5% (20 days) of these 258 days. The growing season is also
defined by soil temperature at 19.7 inches below the soil surface being higher than biological 0
(SOC or 400F). Daytime temperatures were in the high 50's during this fieldwork; thus this
delineation was conducted during the growing season.
Hydrology was present only in the form of soil saturation in the soil test pits within the wetland.
Ongoing drought conditions for the past 4 years are causing wetlands to appear dry. When there
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are positive indicators in both soils and vegetation (especially obligate vegetation like water
parsley and sedges) wetlands can be verified during dry seasons.
Buffer Enhancement Plan
The primary goal of this buffer enhancement plan is to minimize buffer impacts by planting
appropriate native trees and shrubs to create sufficient separation between the building and the
wetland. The buffer will be reduced from the required 1 00- foot buffer to 35 feet near the
building site. The remainder of the buffer not associated with the building and septic site should
remain in its natural condition. Trees and shrubs that are currently found on site should be
protected during the construction and revegetation process. Secondary goals for this plan include
increasing plant species diversity, thereby increasing habitat value for wildlife.
The buffer to be enhanced is an area of approximately 2,500 square feet and is located along the
6-degree slope between the home site and the wetland edge. After the construction project is
complete all disturbed areas will be planted in native trees and shrubs, as recommended in the
plan. The planting plan includes vine maple, cedar, hazelnut, red-flowering currant, and Oregon
grape (Appendix Sheet #3). Complete landscape specifications are listed, including quantities,
sizes, optimum locations, and spacing for each plant. All remaining bare areas should be re-
seeded with the seed mix included in the recommendations (Appendix Table #1 and Table #2).
Plantings may be rearranged to suit landscape and aesthetic choices.
Also included in the Appendix (Table #1 and Table #2) is a directory of local nurseries, which
supply native plants, and this report's Installation Specifications and Recommendations. It is
critical for the success of any newly planted trees and shrubs to be maintained for the first two to
three years. Maintenance includes watering and weeding and replacement of plant material that
does not survive after the initial planting.
Stormwater Control
All stormwater from the house and garage will be directed away from the ravine and stream.
Sediment or runoff during the construction. of the structure should be minimized with the use of
straw bales or sediment fences. This will be required during the entire building process and will
continue to be required until the vegetation becomes established and can act as a natural filter. A
gravel base will be placed on driveways and parking areas.
Summary
A Class II wetland not indicated on the Jefferson County Critical Areas Maps was delineated on
April 13, 2004. The wetland is confined to a drainage swale and roughly parallels the southern
boundary of the two parcels (Lots 6 and 7) within Cape George. The on-site wetland is from 10
to 90 feet wide and approximately 400 feet long, eventually joining the off-site Type 5 Stream.
This wetland will have associated 100-foot buffers measured perpendicular from all wetland
edges.
The majority of his parcel falls within the 100-foot wetland buffer; therefore a buffer reduction
will be required. This delineation report includes a buffer enhancement plan to minimize
construction impacts, increase species diversity, and create sufficient separation between the
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Olympic Wetland Resources, Inc. 4/04
wetland and the building site. The buffer enhancement will further protect the Class II wetland
and ensure the long-term function and values of the buffer. After the construction project is
completed, 12 trees, 16 shrubs, and a native seed cover will be planted, as specified in the plan.
All bare areas should be covered with straw until the native vegetation becomes established, in
order to prevent sediment or runoff. To verify compliance with this planting plan, the project
will be inspected for approval during the final inspection.
The final authority over this wetland determination, buffer reduction, and buffer enhancement
plan rests with the Jefferson County Department of Community Development; restrictions will
apply to any development near the wetlands or buffers associated with this parcel. If there are
further questions or planning requirements for this project please do not hesitate to call.
Dixie Llewellin
Principal Biologist, Olympic Wetland Resources, Inc.
Certified for Wetland Delineation, 1987 Manual.
Wetland Training Institute, June 1995.
Steben Wetland Delineation and Buffer Enhancement
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References
Buckingham, et aI., 1995. Flora of the Olympic Peninsula. Northwest Interpretive Association
and the Washington Native Plant Society, Seattle, Wash.
Cooke, Sarah Spear, 1997. A Field Guide to the Common Wetland Plants of Western
Washington and Northwest Oregon. Seattle Audubon Society, Seattle, Wash.
Cowardin, L.M.V. Carter, F.e.Goblet, and E.T. LaRoe, 1979. Classification of Wetland and
Deep Water Habitats of the U.S. U. S. Fish and Wildlife Service, Washington, D.C.
Hitchcock and Conquest, 1973. Flora of the Pacific Northwest.
Federal Interagency Committee for Wetland Delineation, 1987. Federal Manual for Identifying
and Delineating Jurisdictional Wetland~. July 1994 update. u.s. Army Corps of
Engineers, U.S. Environmental Protection Agency, U.S. Fish and Wildlife Service, and
D.S.D.A. Soil Conservation Service.
Jefferson County Unified Development Code. January 2001.
Leonard, William P., 1993. Amphibians of Washington and Oregon. Seattle Audubon Series.
MacBeth, Div. of Kollrnorgen Instruments Corp., 1992. Munsell Soil Color Charts.
Mitsch and Gosselink, 1993 . Wetlands.
Pojar, Mackinnon, 1994. Plants of the Pacific Northwe~t Coast.
Reed, Porter, 1988. National List of Plant Species That Occur in Wetlands, Region 9. 1993
update.
Washington State Wetland Department of Ecology, March 1997. Washington State Wetland
Identification and Delineation Manual, #96-94.
U.S. Department of Agriculture, 1994. Keys to Soil Taxonomy. Pocahontas Press.
U.S. Department of Agriculture, Soil Conservation Service, 1975. Soil Survey .of Jefferson
County .
Appendix
Sheef#1 Location Map and Soil Survey Of Jefferson County Of Washington
~ .
Sheet #2 . Findings Map
Sheet #3 Buffer Enhancement Plan with Reduced Buffer
Wetlands Rating Field Data Form
Data Fonns, Routine Determination W A State Wetland Delineation Manual
Table #1 Plant List and Landscape Sp~ifications
Table #2 Re-seeding Recommendations and Quantities
Installation Specifications and Recommendations
,).
Title:
Location and Soils Maps
Parcel # 940 500 0060&7
Scale:
Sheet
Olympic Wefland Resources, In(.
856 50th Street
Port Townsend, WA 98368 Client:
360 385-6432
Terry Steben
65 Huckleberry Place
Port Townsend, WA 98368
April 2004
Job #: 2004-8642
#1
TOPO! map printed on 01/30/03 from IIPuget.tpoH and flUntitled.tpg"
122050'00" W WGS84 122046'00" W
WGS84 122046100n W
TNt,." ~ MN
Vi!!"
Jefferson County Soil Survey Mop
Jefferson County, Washington
1975
Soil Survey Page 41
(me Clallam gravelly sandy loom
Subject Property
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Tnle: Findings Maps Scale: Sheet
Olympic Wetland Resources, Inc. Parcel #940 500 060 1 /I = 50'
856 50th Street #940 500 007
Port Townsend, WA 98368 Client: Terry Steben April 2004 #2
360 385-6432 65 Huckleberry Place
Job #: 2004-8642
Port Townsend, WA 98368
50'
Buffer
Lot 7
Wetland
r
100'
Buffer
~~~
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~!
:\
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1
Access
CuU-de-Sac
Delineated Wetland Edge
100' BllfferFrolu Wetland Edge
o Flagged delineation 111arkers
. Data Points
All wetlalld locations
and sizes are approximate,
to establish exact points
a formal survey is required
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Title: Buffer Enhancement Plan
Olympic Wetland Resources, Inc. And Reduced Buffer Proposal
Parcel # 940 500 0060&7
856 50th Street
Port Townsend, WA 98368
360 385-6432
Client:
Terry Steben
65 Hllckleberry Place
Port Townsend, WA 98368
Proposed Home Site
Buffer Enhancement Location
..
,
~
,
~
Marine View Cui-de Sac
~
~ Hazelnut (5) 'Vine Maple (3)
t Cedar (4)
o Oregon CTrape (10)
Delineated Wetland Edge
~="""~=.-ou-~~~~ Adjusted Buffer
~
9 Red-tlo\vering
Currant (6)
Scale: 1'1 = 25 Sheet
April 2004
Job#: 2004-8642
#3
Reduced Buffer
(to --35 feet)
~~
I b Are there populations of non-native plants which are currently presen~ cover YES: go to Q.2
more than 100.10 of the wetland, and appear to be invading native populations? No: go to Ic.
Briefly describe any non-native plant populations and
Infonnation source(s):
Wetlands Rating Field Data Fonn
Bac5cground information: () '- Y m Pi L.
Name ofRalcr. . D II AL€l)jJ-l Atlillalioo: t~o e ESl:\'~ 1/ t.z{tIf-
Name of wed.aDd (if tnown):
GovemmemIurisdidionofwetland: 1rFF&5~ r!JJNT1 rOtl..l CF~t.pI\(U$
(,
Location: 1/4 Section: _ of 1/4 S: _ Section: 13- Township: ~ Range: ~
Sources of Infonnatlon: (Check all s~rces that apply)
Site visit: ~ USGS Tope> Map: ~ NWI map: ~ Aerial Pboto:ftS...--. SoiIs survey: X.
Other:X-Desaibe: ~Ftttj~ CUflUrt ~ fJ/AfJS
When The ReId Data fonn is mmplcteeDlt:r Category bere: [K] 2- q f D I i"--lU
0.1. High Quality Natural Wetland
Answer Ibis question if you have adequate information or experieoce to do so.
If DOt fi.od someone with the expertise to answer the questions. ~ If the
answer to qoestioDs la, Ib IDd Ie are all NO. coot.act!be Nannl Heritage
program ofDNR
lL BUIIWl aIIISed disturbaaces.
Is dae sigaific:aal eYideDce ofbwnan-caused changes to topograply or
hydrology ot1be wetland IS IDdicatr,d by any of the foIIowiDg CODditioos7
Consider Oldy cbaDges tbIt may have taken place ill 1be last S decades. The
impacts of cbIDges doDe eIIticr have probably been stabilized IDd the wetland
ecosystem. wiD be dose 10 reaching some DeW equi1ibdum Ihat may represent
a high quality wedaDd..
1 al. Upstream wlterSbed > 12% impervious.
181. Wedaad is ditcbcd aDd water flow is DOt obstructed.
1 a3. Wedm1 bas been graded. filled, logged.
114. Wiler In wetland is COIDOlIed by dikes. weirs. ecc.
laS. Wedm1" grazed..
1 a6. Other iDdicatocs of disWrbance (list below)
2a.3.ts the vegetation a mixture of only herbaceous plants and Sphagnum
mosses with no saublshrub or forested classes?
Is the area of berbaceous plan~ Sphagnum.. and deep organic
soils> 1/2 acre?
Is the area ofberbaceous plants. Sphagnum., and deep organic
soils '14-1/2 aae?
Q.2b. Mature rorated wetla.d.
2b.l. Does SOO.!e of the cover of upper forest canopy consist of evergreen
trees older than 80 years or deciduous trees older than SO years?
Nou: The size of tn:es is often not a rnea.s\ft of age. and size cannot
be used as a surrogate for age (see guidance).
2b.2. Does 50% of the cover of forest canopy consist of evergreen.trees older
than 50 years, AND is the structural diversity of the forest high as
characterized by an additionallaycr of trees 20'-40/ tall, shrubs 6'- 20\
tall, and a herbaceous groundcover1
Circle Answers
Yes: go to Q.2
Yes: go to Q.2
Yes: go to Q.2
Yes: go to Q.2
Yes: go to Q2
~
~
YES: Category I
YES: Category II
NO: Go to .3.
YES: Category I
NO: Go to 2b.2
YES: Go to 2b.3
NO: Go ~ Q.3
YES: Category I
NO: Go to .3
2c.1.1s the wetland listed as National Wildlife Refuge. National Park. YES: Category I
National Estuary Reserve. Natural Area Preserve, State Park, or NO: Go to 2c.2
Educational, Environmental or Scientific Reserves designated under
WAC 332-30-151?
2c.2. Is the wetland> 5 acres; ........................................ ................. YES: Category I
Noll!: If an area contains patches of salt tolerant vegetation that are
1) less than 600 feet apart and that are separated by mudflats that go
dry on a Mean Low Tide, or
2) separated by tidal channels that are less than 100 feet wide;
all the vegetated areas are to be considered together in calculating the
wetland area.
or is the wdland 1-5 acres; .........................................................
or is the wetland < I acre? ..........................................................
YES: Go to 2e.3
YES: Go to 2eA
Ic. Is there evidence of human -au sed disturbances which have visibly
degraded water quality. Evidence of the degradation ofwater' quality include:
direct (untreated) nmofffrom roads or parking lots; preseoce, or historic
evidence, of wasttdumps; oily sheens; the smell of organic chemicals; or
livestock use. Bri~ describe: p ~ I
8J'(JeYJt ~ T ~qCi/N-j
Q.2. Irreplaceable Ecological Functions:
Does the wetland:
have at least 1/4 acre of organic soils deeper than 16 inches
and the wetland is relatively undisturbed; OR
[If the answer is NO because the wetland is disturbed briefly
describe:
Indicators of disturbance may include:
- Wetland has been graded. filled, logged;
- Organic soils on the surface are dried..out for more than half
of the year;
- Wetland receives direct stonnwater nanofffrom urban or
agricultural areas.];
OR
have a forested class greater than I acre;
OR
have characteristics of an estuarine system;
OR
have eel
Z.. Bogs ..d Fea.
Are any of the tItRe following conditions met for the area of organic soil?
2a.l. Are Sphagnum. mosses a common ground cover (> JO-.II.) and the cover of
invasive species (see Table 3) is Jess than loeA?
Is the area of sphagnum mosses and deep organic soils> 1/2 acre?
Is the area of sphagnum mosses and deep organic soils Y-t-112 acre?
2a.2. Is there an area of organic soil which has an emergent class with at least
one species from Table 2, and cover of invasive species is < 104''''' ( see Table 3)?
Is the area ofberbaceous plants and deep organic soils> 1/2 acre?
Is the area ofberbaceous plants and deep organic soils J14-112acre?
2c.3. Does the wetland meet at least 3 of the following 4 aiteria: .......
_ minimum existing evidence of human related disturbance such as
diking. ditching, filling. cultivati~ grazing or the presence of non-
na~ve plant species (see guidance for definition);
_ surface water connection with tidal saltwater or tidal freshwater;
- at least 75% of the wetland has a 100 buffer ofungrazed pasture.
open water, shrub or forest;
_ bas at least 3 of the following features: low marsh; high marsh; tidal
channels; lagoon(s);woody debris; or contiguous freshwater wetland.
2c.4. Does the wetland meet all of the four criteria under 2c3? (above)'?
Q.2d. Eel Grass and Kelp Beds.
2d.l. Are eelgrass beds present? ..................................................
2d.2. Are their floating or non-floating kelp bed(s) present with greater than
SOO;e macro algal cover in the month of August or September?.... . .. . .. ... .
Q.3. Category IV wetlands.
3a. Is the wetland: less than I acre m
hydrologically isolated AOO.
comprised of one vegetated class that is dominated (> 800;e areal cover)
by one species from Table 3 (page 19) or Table 4 (page 20)
3b. Is the wetland: less than two acres
and. hydrologically isolated, .
with one vegetated class, and > 90'10 of areal cover in any combination of
species from Table 3 (page 19)
3c. Is the wetland excavated from upland am a pond smaller than 1 acre
without a surface water connection to streams, lakes. rivers, or other
wetland, and has < 0.1 acre of ve elation.
YES: Go to 2b
Yes: Go to 2c
Yes: Go to 2d
YES: Category I
YES: Category II
NO: Go to 13.3
YES: Category I
YES: Category U
NO: Go to 18.3
YES: Category I
NO Category II
YES: Category II
NO: Cat III
YES: Category I
NO: go to 2d.2
YES: Category I
NO: Category II
DA.TA FORM 1
Routine Wetland Determination
(WA State Wetland Delineation Manual or
1987 Co s Wetland Delineation Manual)
Project/Site: CAA:: C1 EDtttE A1LttL~ # qqu 50!) DO<O Date: 4/13 01-
-ff Q4u StD c)u 7
Applicant/owner: ~ S--rt BEN County: Jt;--PP~S~ coJA.t-rv\
State: lV A8t/tAUtl toN
srrlR: ~/~., 30(22W
Community ID:
Transect ID: -#
Plot ID: D P , I
Investi O'at~r( s):. . L.LtY)El..1.J~J
Do Normal Circumstances exist on the site? ~
Is the site signifi~tly disturbed (atypical situation)? yes
Is the area a tential Problem Area? es
VEGETATION
Dominant Plant S ecies
Stratum
ALNu uM T
e . 'fANPt5 T .
5EUPOTSU A fnevzt511
11 c~ EArL (Sit S
RUBUS sPEL-7fI U
HYDROPHYTIC VEGETATION INDICATORS:
% of dominants OBL. FACW, @ "'1 ~ 7n
Check all indicators that 'apply & explain below:
Regional knowledge of plant communities v
-fj--l'
Physiological or reproductive adaptations ~
Technical Literature 1-
Hydrophytic vegetation present?
Rationale for decisionIRemarks:
U:~5 ~ S\7o [t\11lNfbU[C
HYDROLOGY
Is it the growing season? ~ c/
Based on: *'\fL ',5 D l L Th'lt1 D 1-/
Dept. of inundation: j-f o~ inches
Depth to free water in pit:
N~ inches
Depth to saturated soil: }\JbtJf
Check all that apply & explain below:
Stream, Lake or gage data:
Aerial h otoO"ra hs:
Wetland hydrology present?
Rationale for decisionIRemarks:
inches
Other:
yes
no
~
~
Indicator Domin'ant Plant S cies
Stratum
Indicator
H
H
~. FAG +
A V
fALL!
.FALU
':fttc V
fAc-r
tPD
yes
Wetland plant list (nat'l or regional) ~
Morphological adaptations ~
Wetland Plant Data Base ~
@)
OTHER
no Water Marks: es no
Drift Lines: es no
Oxidi zed Root (Ii ve roots)
Channels < 12 in. es no
FAC Neutral: yes no
Sediment De osits: no
Drainao-e Patterns: no
Local Soil Survey: yes no
Water-stained
Leaves:
yes no
Other:
~
DATA FORM 1
Routine Wetland Determination
(W A State Wetland Delineation Manual or .
1987 Cor s Wetland Delineation Manual)
Project/Site: CA~Je CiEJ)~e p~~ c iO 5W ODp
Cft) 0 i.:;UJ 0 D 7
Applicant/owner:'~ STEBt:=rJ
Investiaator(s): p, 0 {lU,(..(r 0 "t'Yl l
Do N orrnaJ Circumstances exist on the site?
Is the site significantly disturbed (atypical situation)?
Is the area a tential Problem Area?
VEGETATION
Dominant Plant S ecies
Stratum
'T
01,
~u-' K
11-10 Jt1 P U ~ft1]q
Srt0ft(3t LL5
{U5 fAcefYl05
M/~' U
HYDROPHYTIC VEGETATION INDICATORS:
% of dominants OBL. FACW, & FAC: S? ~-. 7 ZZD
Date: 4( I J 04- :
County:]l::.~~
State: LA.) A-
Srr/R: S (3 '130 .12 Z Vi/
CommunitY ID:
Transect ID:
piot ID: f::::tf
VtLW
Indicator
Indicator
+tlC-
Fltc
.'PAL
OBL
T
yes ,{J~ WaterMarks: es no
P611J~'7 1-1 Drift Lines: es no
- D- inches Oxidized Root (live roots)
Channels <12 in. es no
'- -- O~ inches FAC Neutral: yes no
s
Check all indicators that apply & explain below:
Regional knowledge of plant communities
Physiological or reproductive adaptations
Technical Literature
Hydrophytic vegetation present?
Rationale !or decisionIRemarks: I dJ
() (ZtltTtYl 7ttAA 'S I "b
~
X
~
HYDROLOGY
Is it the growing season?
Based on: . ~
Dept. of inundation:
Depth to free water in pit:
FA-LV
DBL
Wetland plant list (nat'} or regional) Y-
Morphological adaptations ><
Wetland Plant Data Base x
no
OTHER
es no
no
yes no
Water-stained .
Leaves: yes no
Depth to saturated soil: ..--. D - inches
Check all that apply & explain below: Other:
Stream, Lake or gage data:
Aerial hoto a hs: Other:
Wetland hydrology present? yes
Rationale for decisionlRemarks:
~7ltrr4j)
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Installation Specifications and Recommendations
All areas of exposed soil will be revegetated with species known to tolerate local soils
and conditions. Individual plant species have been selected because they have a high .
habitat value, are consistent with surrounding vegetation, and are known to thrive in east
J effers~n County.
Fall Installation
Planting should be installed between mid-September and mid-November, unless the new
plantings can be watered throughout the summer. Planti~gs installed in the fall generally
outperform those installed in the late winter or spring. Plants put in the ground in the fall
have tbe advantage of an extended period for root growth before rapid top growth in the
spring. In the fall, the soil is wanner and more aerated than in the spring and most plants
experience active root growth during this time. .
The cool, cloudy days and frequent precipitation of fall and winter also provide ideal
transplanting conditions. Until sufficient root systems develop, newly installed plants will
undergo transplanting stress that can be exacerbated by hot sunny days. Fall and winter
weather allows for reduced transpiration and provides ample moisture for the roots while
the plant recovers from transplant shock.
Root Disturbance
Immediately before installation plants with broken, damaged, or twisted roots
must be pruned. Matted or circling roots of containerized plantings must be
pruned or straightened and the sides of the root ball must be roughened from top
to bottom to a depth of approximately half an inch in two to four places.
If circling roots are left, they may eventually girdle the plant as they grow and
thicken in place. If the roots at the edge of the root ball are straightened and
extended, they will have access to a greater volume of soil in the planting hole.
Also, the roughened edges of the root ball will have better contact with the
backfill soil.
Disturbing and removing one-fourth to one-half of the roots in the outer inch of
the root ball will damage only the most sensitive plants; most often, this treatment
actually stimulates increased plant growth. .
Plant Depth
The finished height of each plant's root ball will be slightly higher than that of the
surrounding soil. . The exception is for sandy soils, in which case the soil heights
will be even. The top of the root ball will not be covered with backfill soil. A
watering basin will be formed around each planting by building a berm of soil at
least 30 inches in diameter.
1
When planting a container-grown plant, the top of the root ball should not be
covered with any other soil. Covering the root ball with soil, particularly if it has a
finer texture than the potting or field-growing soil, will generally cause water to
flow around the root ball instead of into it; root balls covered in this way may
receive water~nly from below. To allow direct wetting of the root ball from
above, install the plant so that the top of the nursery soil is slightly higher than the
surrounding soil level. If the soil is sandy, or ofa large particle size, then the
nursery soil should be level with the surrounding soil.
A watering basin made of mounded soil around each planting will further help to
catch water from above-the berm should be at least 30 inches in diameter
surrounding a plant. Mulch placed within the basin and on the berm will limit
moisture loss from the root ball and surrounding soil, but take care that it does not
come into contact with the stem of the plant as rodents or pathogens living in the
mulch may attack the bark.
Re-seeding
After the completion of the construction and planting projects, a seed mix (included in
Table 1.) will be evenly spread on all bare areas. An inspection by a wetland biologist or
Critical Areas staff of Jefferson County Department of Community Development will be
required after all planting is completed.
Maintenance: Weeding and Irrigation
The use of appropriate native species and careful planting ensures that the need for
ongoing maintenance will be minimized. "However, some maintenance is required to
ensure that the young plants become established. It is recommended that weeding around
new plants be conducted once or twice a year during.the months of May and September
for the first five years, and as often as needed after that. All Scot's broom, Himalayan
blackberry, and thistle should be monitored and eliminated from the site.
Irrigation may be required for upland species (vine maple, red-flowerIng currant, and
pine) for the first three years or until plants are well established. Hand watering or
irrigating with overhead sprinklers once a week should be adequate during the hot
summer months. Wetland species that are planted near the creek corridor may require
less watering.
2
I SOILS
M~p Unit Name f----ft]C / {/ Ul Ulh:'~ ,)l}NtJ~1 if2lr1k1J-1 Lo/lY\ Drainage Class I l! e -I
(Series & Phase)
&fnc O<.J(lD01~()
Field observations confmn Y ~s (RQ)
ma d ? .- UtNJ eDN tTkV\
Ac~ 5b (L-S~.
Profile Description
Depth Horizon
(inches)
Matrix color. Mottle colors Mottle abhndance
{Munsell (Munsell size & contrast
moist) . moist)
Texture, concretions,
structure, etc.
Dca wing of soil
. profile
(match description)
l 0 -I b
IVY!Z-~' I
I 0 c-w_z/l
5/tNvO 'l
L()1Tw\
0-/'0
IOIfL-
Af)O f'J. D/tvU T
loil~
2/11
~
loYILZ-{'
t.;J ~'1 0 f1lb
LV '1t2-)/~
Hydric Soil Indicators: (check all that apply)
Histosol
_ Histic Epipedon
Sulfidic Odor
_ Aquic Moisture Regime
-bReducing Conditions
Gle ed or Low-Chroma Colors
Hydric soils present? ~ no
Rationale for decisionIRemarks:
Concretions
_ High Organic Content in Surface Layer of Sandy Soils
_ Organic Streaking in Sandy Soils
_ Listed on Local Hydric Soils List
.. _ Listed on National Hydric Soils List
Other (ex iain in remarks)
Wetland Determination (circle)
Hydrophytic vegetation present?
Hydric soils present?
Wetland h drolo resent?
RationaleIRemarks:
~ no
~ no/
es ~
B ui C/t70 ()E / 111 f L)/ t]'J
Is the sampling point
within a wetland?
@
no
fJQ1) tJ ' .
THL)
15
~HJtLu wtr
ft-S LN't::f.
NOTES:
SOILS
Map Unit Name Cil'\ C CLAU /\tV) S ArVOJj tJlZAv't.W1 Lf~ainage Class t ve - I
(Series & Phase)
ma
Profile DeScription
Depth Horizon
(inches)
Matrix color Mottle colors
{Munsell (Munsell
moist) moist)
Mottle abundance
size & contrast
Texture, concretions, I
structure, etc.
DraWing of soil
. profile
(match description)
<is ~I ~
I b YrZ)}3
J 0 \t(IZ3D /Olt/4f 4- $7}cEY\~3
S~O
[(j~~L 3/)
C'r-- ~
(011'1- if)
(J1DTlLf=/
/o1fL414-
~
Hydric Soil Indicators: (check all that apply)
_ Histosol
_ Histic Epipedon
_ Sulfidic Odor
_ Aquic Moisture Regime
_ Reducing Conditions
Gleyed or Low-Chroma Colors
Hydric soils present? yes ~
Rationale for decisionIRemarks:
_ Concretions
_ High Organic Content in Surface Layer of Sandy Soils
_ Organic Streaking in Sandy Soils
_ Listed on Local Hydric Soils List
.. _ Listed on National Hydric Soils List
Other (explain in remarks)
. Pi V /'tD T fY) f\T(i( CrtJevt1tl Qt-- :2 Ore- LE?5
Wetland Determination (circle)
Hydrophytic vegetation present?
Hydric soils present?
Wetland hydrology present?
Ration al elRem arks:
yes @
yes (I1!D
yes __ Jlo./
Is the sampling point
within a wetland?
yes ~
NOTES:
Q.4. Significant habitat value.
Answer all questions and enter data requested.
4a. Total wetland area
Estimate area. select from choices in the near-right colWI1l1. and score in the
far column:
A-/f..
Enter acreage of wetland berc:.-2,acres, and source: pi t::Lir:/.._ .. _ ....1.
fl\~V~
4b. Wetlud duseI: Circle the wetland classes below that qualify:
Open Water: if the ~ of open water is > 1/4 acre
Aquatic Beds: if the area of aquatic beds > 1/4 acre,
Emergent iftbe area of emergent class is > 1/4 .~,
Sctub-Sbrub: if the area of SCntb-sbrub class is > lilt acre,
forested: if area of forested class is > 1/4 BaC,
Add the number ofwetlancl classes, above, that qualify, and then
Score according to the columns at right.
e.g.lftbere are 4 classes (aquatic beds, open water, emergent &.
Scrub-shrub would circle 8 ints in the far ri t column.
4c. Pint speda diftnity.
For each wetland class (at right) that qualifIeS in
4b above, count the number of ~ffemtt plant species
you can find that cover moo: than 5% of the ground.
Yau do DOt have to name them.
Qm
Aquatic
Score in column at far right:
e.g. If. wetland Ills an aquatic bed class with 3 species, an
emergent class with .. species and . scruIHhrub
class with 2 species you would circle 2, 2, and I in the
far column.
NoIe: Any plant species with . cover of> S%
qualifies for points within . class, even those ~
that are DOt of that class.
~
4g. CoRD.edion to strea.... (Score..e aaswer oldy.)
4g.1. Does the wetland provide habitat for fish at any time of the year AND
does it have . perennial surface water ~tion to a fish-bearing stream.
4g.2 Does the wetland provide fish habitat seasonally AND does it have
a seasonal surface water connection to. fish--bearing ~
4g.3 Does the wetland function to export organic matter through a surface
water connection at all times of the year 10 a perennial stream.
4gA Does the wetland function to export organic matter through I surface
water connection to a stream on a seasonal basis?
4b. Buffen.
Score the existing buffers on a scale of 1-5 based on the following four descriptions.
If the condition of the buffers do DOt exactly match the description, ~ either a
point higher or lowerdepeadiDg 011 wbctber the buffers are less or more degraded.
Forest. saub, native grassla.Dd or open water buffers are present for
more than l00'around 95% of the circumference.
Forest, scrub, native grass1aDd. or opeD water buffers wider than 1()(y
for mon: than 112 of the wetland circumferem:c, or a forest. scrub,
grasslands. or open water buffers for more than 50' around 95 % of the
circumference.
F~ scrub, uative grass1aDd. or open water buffers wider than J ()(y
for more than 1/4 of the wetland circumference, or a f~ saub, native
grassland, or open Wlter buffers wider than 50' for more than In. of the
wetland circumfermce.
No roads, buildings or paved areas within 100' of the wetland for ~ than
95% of the wetland circumference.
No roads. buildings orpavcd areas within 25' oftbe wetland for more
than 95% of the circumference, or
No roads buildings or paved areas within S(Y of the wetland for more than
1/2 of the wetland circumference.
Paved areas. industrial areas or residential construction (with less than 50'
between houses) ~ less than 2S feet from the wetland for more than 95 %
of the circumference of the wetland. .
Ckde ICeftI ... .-HtY
mn
>200
40-200
10-40
S-103
1-5
0.1-1
<0.10
ooints
6
5
4
2
~
~ f2Ym
I ............ 0
2............ 3
~=::::-p
5............ 10
" soecies in class Points
I 0
2 1
3 2
>3 3
I 0
~
>5 3
1 1)
2 1
04 n
>4 J
I 0
~ ~
2
.>4 3
YES :c 6
YES=4
YES =4
, Score = 5
Scon: = 2
Score = 2
Score = I
Score "" 0
4d. Structural clivenity.
If the wetland has a forested class. add I point if each of the following
Classes is present within the forested class and is lanzer than 1/4 acre:
-trees> SO' tall............................
-trees 20'- 4 ~ tall............ . . . . . .. . . . . .
.shrubs. ......................................
-herbaceous ground cover................
Also add J point if there is any "open water" or tlaquatic bed" class
Immediately next 10 the forested area (i.e. there is 110 scrub/shrub or
tion between them .
4e. Decide from the diagrams below whether interspersion between
wetland classes is IU~ moderate, low or none? If you think the
amount of interspersion falls in between the diagrams score accordingly
(i.e. I moderately high amount of interspersion would SC<n .4.
while I moderately low amount would score a 2)
...:::...:.
- : : '. .,:- : : ~ .....: : : ~.
:.:'.~~:=~:~3~::,:';~~: :
#- .-.',,'" ~ .....-............~~......
, ,... '1".... '- ..... ...., _.... .
.. :<;~~:j.}~~:;. ' ::'D~XL. ;::.
~
Joy.'
Iov.'
..0W;::::~;\;. ...Jt... . ..:{Ji~::
.. _ "'.'" ......'......:... ........... ...."
..... ~..... ':,:::~:'::::;::,::>..::
.~
,,~~:~:-/
"'~,.""
..,;; ..,.. ". ~ .. ....,,''\ ,'.
, ... ... ... ...
moderate
fllI."t4.1eIatc'
. high
4r Habitat features.
Answer questions below, circle features that apply, and score to right
Is there evidence that the open or standing water was ca~ by beavers
Is a heron rookery located within 30<r?
Arc raptor nestls located within 30<r'! .
Are there at least 3 standing dead trees (snags) per acre greater than
10" in diameter at ~t height" (DBH)?
Are there at least 3 downed logs per acre with a diameter
> 6" (or at least 10' in length?
Nt there alaS (vegetated or unvegetated) within the wetland that are
ponded for at least 4 months out of the year, and the wetland has not
qualified as having an open water class in Question 4b. ?
4L eoallectioa to otIler laabitat areas:
Select the description. which best matches the site being evaluated.
-Is the wetland coonectcd to, or part of, a riparian corridor at least 100' wide
connecting two or more wetlands; or, is there an upland connection present > I 00'
wide with load forest or shrub cover (>25% COVel') connecting it with I
Si~ficantHabitatArea? l1fe, S- S~ .
-Is the wetknd connected to any other Habitat Area with either I) a forested/shrub
conidor < 1'00' wide, or 2) a corridor that is > 100' wide, but has . low vegetative
cover less than 6 feet in height?
-Is the wetland connected to. or a part of, a riparian corridor between SO - 100' wide
with scrubIsIuub or forest cover connection to other wetlands?
- Is the wetland connected to any other Habitat AJea with narrow corridor (< J 00')
oflow vegetation (< 6' in height)?
- Is the wetland and its buffer (if the buffer is less than SO' wide) completely isolated
by development (urban. residential with a density greater than 2/aere, or industrial)?
Now add the scores circled (for Q.5a - Q.51 above) to get a total.
Is the Total greater tIla. or equal to 22 poiats?
I 7- 1-
5t-
,-1-
,--
~
~~ purNP
YES - I
Hi -
Moderate - 3 "\\
None - 0
YES-=2
YES so 1
YES-= I
YES-= I
YES c: 1
YES = 2
Yes=]
Yes = 3
Yes c: I
Yes c: 0