HomeMy WebLinkAboutMEP2008-00064 Wetland Buffer Mitigation Plan - MEP Permit / Conditions - 9/8/2008 �PSoN-cATFo� MASON COUNTY
o A O �N DEPARTMENT OF COMMUNITY DEVELOPMENT
o N z Planning Division
s�oJ N Y goy P O Box 279, Shelton,WA 98584
1864 (360)427-9670
MASON ENVIRONMENTAL PERMIT
September 08, 2008
ARTHUR GAMEZ
2151 NE BEAR CREEK DEWATTO RD
BELFAIR WA 98527
Parcel No.: 123053400000
Issued: 9/8/2008
Case No.: MEP2008-00064
Project Description:
ADDITION TO GARAGE IN BUFFER
The following critical areas are present on this property:
Long-Term Commercial Forest FWHCA
Ch. 17.10.060; Ch. 17.01.110;
Mineral Resource Lands Frequently Flooded Areas
Ch. 17.01.066; Ch. 17.01.090;
Inholding Lands Landslide Hazard Areas
Ch. 17.01.062; Ch. 17.01.100;
Wetl Wetlands Seismic Hazard Areas
ands Ch. 17.01.070; Ch. 17.01.102;
Critical Aquifer Recharge Erosion Hazard Areas
Ch. 17.01.080; Ch. 17.01.104.
This permit,with conditions, is granted pursuant to the Mason County Resource Ordinance
(Chapter 17.01 MCC.) Nothing in this permit shall excuse the applicant from compliance with
any other federal, state, or local statutes, ordinances, or regulations applicable to this project.
This permit may be rescinded if the permitee fails to complete the project as proposed or fails
to comply with the standards of this ordinance.
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Authorized Local Government Official Date
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Mason Environmental Permit
9/8/2008 Case No.: MEP2008-00064
Conditions:
.) Applicant must adhere strictly to the July 2008 Wetland Buffer Mitigation Plan
2.) Temporary erosion control measures must be implemented to prevent water quality
degradation of adjacent waters or wetlands. Silt fencing must be installed and maintained
until upland vegetation has become established.
3.) Approved per dimensions and setbacks on submitted site plan.
4.) Monitoring of the installed vegetation will be performed annually for three years following
installation. Monitoring will entail inspection of each planted specimen for survival and
vigor, and will be performed in August or September of each monitoring year. In addition,
two photo points will be established that portray the planting area from each side of the
propert . A brief letter reporlournmarizing monitoring findings will be submitted to Mason
Cou P in ch monitoring year.
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9/8/2008 Page 2 of 2 MEP2008-00064
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P�oN-STArit MASON COUNTY
M�
O DEPARTMENT OF COMMUNITY DEVELOPMENT
tr, y
> o N ? Planning Division
7 N y a P O Box 279, Shelton, WA 98584
(360)427-9670
1864
MEP2008-00064 NOTICE OF MASON ENVIRONMENTAL PERMIT
Notice is hereby given that ARTHUR GAMEZ, who is the owner of the described property, has filed
an application on 08/14/2008 for a Mason Environmental Permit for the development of:
ADDITION TO GARAGE IN BUFFER
A determination of completeness was made on: 8/14/2008
Site Address: 2151 NE BEAR CREEK-DEWATTO RD BELFAIR
Parcel Number: 123053400000
Location of Project: OUT OF SHELTON TAKE HWY 3 TO BELFAIR GO 22.8 MILE TURN LEFT
ON OLD BELFAIR HWY GO 3 MILES TURN LEFT ON BEAR CREEK
DEWATTO RD GO 2 MILES TO ADDRESS
Within: SW (quarter section) of Section: 05 Township: 23 N Range: 1 W, W.M. in, Mason
County Washington.
Said development is proposed at 2151 NE Bear-Creek Dewatto Road. Any person desiring to
express their view or to be notified of the action taken on the application should notify:
MASON COUNTY DEPARTMENT OF COMMUNITY DEVELOPMENT
P O BOX 279
SHELTON, WA 98584
Written comments must be received by 9/3/2008.
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A decision on the application will be made within 120 days of the date of completeness
A Determination of Nonsignificance was issued under WAC 197-11-340. Written comments
regarding this determination must be received by 9/3/2008.
MEP2008-0006
Pagel of 3
PERMIT NO.:
DATE RECEIVED:_
MASON COUNTY
DEPARTMENT OF COMMUNITY DEVELOPMENT
RESOURCE ORDINANCE(Chapter 17.01 MCC) RECEIVED
411 N.5TH Street/P.O.Box 279,Shelton„ WA 98584
AUG 14 2008
ENVIRONMENTAL EMIRONMENTAL PERMIT APPLICATION
BELFAIR OFFICE
MASON ENVIRONMENTAL PERMIT❑ CONDITIONAL USE ❑
The purpose of the Resource Ordinance is to protect Mason County's natural resource lands and critical areas
and is under the authority of Chapters 36.32,36.70A, 39.34, 58.17,76.09, 84.33, 84.34 and 90.58 RCW.
PLEASE PRINT
1.APPLICANT
NAME: Arthur T.Gamez SIGNATURE:
MAILING ADDRESS 2151 NE Bear Creek DeWatto Rd,Belfair,WA 98528
WORK PHONE 360-276-4218 F-MAiI.ArmF s artgamez@man.com
HOME PHONE 360-275-7218 FAX# 360-275.4218
Ifan agent it ading for Me applicant dur&g dvepernritprocess,caagplete#2
2.AUTHORIZED AGENT
NAME: SIGNATURE:
MAILING ADDRESS
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WORK PHONE E-MAIL ADDRESS
HOME PHONE
FAX#
.SITE ADDRESS 2151 NE Bear Creek DeWatto Rd ;,
rARCEL NUM DER 12305 -34 - 00000 LEGAL DESCRIPTION SE SW S OF CO RD EX
DIRECTIONS TO SITE: I.Out of shelton,WA take WA-3 to Belfair go 22.8 mi 2.Turn Left on Old Belfair Highway go 301
3.Turn Left Q NE Bear Creek DeWatto Rd go 2.o mi 4.Arrive Q 2151 NE Bear Creek DeWatto Rd,on the left.
4. State which section requires permit:
❑ Long Term Commercial Forest,Chapter 17.10.060 Wetlands,Chapter 17.01.070
❑ Mineral Resource Lands,Chapter 17.01.066 ❑ Frequently Flooded Areas,Chapter 17.01.090
❑ Aquifer Recharge Area,Chapter 17.01.080 ❑ Landslide Hazard Area,Chapter 17.01.100
❑ Erosion Hazard Area,Chapter 17.01.104 ❑ Seismic Hazard Areas,Chapter 17.01.102
0 In-Holding Lands,Chapter 17.01.062 0 Fish&Wildlife Habitat Conservation Areas,Chapter 17.01.110
Page 2 of 3
5. Identify current use of the property with existing improvements:
The property is currently being used as a single family resident.
6. Identify and describe the proposed project,including the type of materials to be used,construction methods,principle dimensions,
and other pertinent information(attach additional sheets,if needed):
The protect consists of adding a I W x W aera to an existing structure. The addition will consist of wood walls with a
concrete floor,wood rafftere and a composition roof
7. Describe why the action requiring this permit cannot be avoided
The addition is being constructed within the buffer of a existing wetland.
8. Will there be an alteration of a wetland and/or wetland vegetation area? Yes 91 No ❑
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9. Identify any aurfacc water on or adjacent to property:
❑ Saltwater ❑ Lake ❑ Stream ❑ Pond IN Wetland ❑ Drainage Ditch
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10. If septic is located on project site,include records.
❑ CunuCct to Septic ❑ Cuuunututy Seylic ❑ Public Water Supply ❑ Well
11. Type of Job:
❑ New ® Add ❑ Alteration ❑Repair ❑ Demolition ❑ Other.
This permit is granted pursuant to the Resource Ordinance(Chapter 17.01 MCC)and nothing in this permit
shall excuse the applicant from compliance with any other federal, state, or local statutes, ordinances, or
regulations applicable to this project, but not inconsistent with the Resuurce Ordinance. The permit may be
rescinded pursuant to the event the permittee fails to comply with the conditions of this ordinance.
MASON ENVIRONMENTAL PERMIT: $590.00/$355.00(with another permit)
MASON CONDITIONAL USE ENVIR.PERMIT: $1,420.00
HABITAT MANAGEMENT PLAN REVIEW: $415.00
IAPLAMINGIPACTORMS REVISED July 2008
• _ Pa e Show the following on the site plan 3 of 3
Lot Dimensions Flood Zones
Existing Structures Fences
Water Lines Driveways
Drainage Plans Shorelines
Septic System Topography Indicate Directional by(N,S,E,W,etc.)
Proposed Improvements Easements In relation to plot plan
Name if Flanking Street
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TES WETLAND CORPS 17
Wetland Delineation • Habitat Management Plans • Riparian Restoration • Mitigation
426 W! `� `'�.7 1 S r.
GAMEZ WETLAND BUFFER MITIGATION PLAN
Parce1123053400000
2151 Bear Creek Dewatto Road
Belfair,WA
Mason County
Prepared for.
Arthur Gamez
2151 Bear Creek-Dewatto Road
Belfair,WA 99528
Prepared by:
Lee Boad and Heather Lane
i
July,2008
I
PO Box 2854 Belfair,Washington 98528•Cell Phone 360-620-0618.Office Phone 360-372-2421•boad4o@peoplepc.com
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TFH WErLAND CORPS
W07-
Wetland Delineation • Habitat Management Plans • Riparian Restoration • Mitigation • Biological Evaluation
GAMEZ WETLAND BUFFER MITIGATION PLAN
TABLE OF CONTENTS
PROJECT DESCRIPTION N.....N.N.N..N......N.....NNN..............
.N..NNN.N.N..NN.....N......NN..N...1
PROPERTY DESC'RIP1'ION.........N.N....N.HN.N.NN.».......N...NN.N..................N............N....NNl
APPLICABLE SETBACKS.....................NNN..NN.N........N....NN..N......NN.N..NN.....HNN.....N.N.Z
DESCRIPTION OF HABITAT AND SPECIES
ANALYSISOF EFFECTS.NNH...N..N.NNN..NN.N.NN..H.........N.......NN..............NN........N......N...rJ
MITIGATION MEASURES NNN....N.NN.N....H.N........NNNNN.N.N..N...H.N..N....N.NN.................5
MONITORINGN.NN..NN.N.........p.p...ppp�p�pp��pN...NNNNNNNNN....N.NN.NNNNNNN....NNN..N..NN8
SUMMARY
REFERENCES... ...........NN.Np.............NNN..N...NHNN.N.NN.N....NN...N.N..NN........
.......HNN 10
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Figure 1. Site Vicinity Map
Figure 2. Site Map
Figure 3. National Wetland Inventory Map
Figure 4. Mason County Soil Survey Map
Figure 5. DNR Water Resource Map
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PO Box 2854 Belfair,Washington 98528-Cell Phone 360-620-0618•Office Phone 360-372-2421•boad4o@peoplepc.com
`I`I-H VVETLAND CORPS
Wetland Delinea ion • Habitat Manages Plans • Riparian lltfft tion •Mit pUon • Biological Evaluation
July,2008 Project No.TWC08-350
Page 1 of 8
GAMEZ WETLAND BUFFER MITIGATION PLAN
2151 NE Bear Creek-Dewatto Road
Belfair,WA
PROJECT DESCRIPTION
The details of a Wetland Buffer Mitigation Plan for the above referenced property(parcel
No. 123053400000)are discussed in full in this report. The site is located in the SW %4 of
Section 5,Township 23 North,Range 01 West WM(Figure 1 Vicinity Map). The parcel
is 5.17 acre in size.
The purpose of this Wetland Buffer Mitigation Plan is to address potential impacts
resulting from the proper project, entailing the construction of a 170-square foot
adWon to the south side of an existing garage. The project lies within the buffer of a
regulated wetland located just outside of the western property boundary.A Critical Area
Determination was prepared by TWC on July 246, 2008, identifying the onsite wetland
as meeting criteria for a Category I Wetland with high habitat function. According to
Table 17.01.070 F of the Mason County Resource Ordinance,Category I Wetlands with
high habitat function, within parcels intended for Moderate Impact band Use require a
base buffer width of 225 feet with an additional 15 foot building setback. Moderate
Impact Land Use is described in Table 17.07.070 B of the Mason County Resource
Ordinance as single-family residential lots or residential subdivisions with 1 unit/acre or
less.
The objectives of this Wetland Buffer Mitigation Plan are as follows:
■ To evaluate the potential adverse effects to critical area functions as well as fish
and wildlife habitat resulting from the proposed project within the wetland
buffer. Emphasis is placed on the possible loss of habitat for any listed species
found to be residing in the vicinity of the parcel
■ To identify possible mitigation measures that could be implemented to offset the
adverse effects resulting from the proposed project within the wetland buffer.
PROPERTY DESCRIPTION
The parcel is accessed from the north via Bear Creek Dewatto Road,which makes up the
northern property boundary, and is bordered to the south, east and west by undeveloped
residential parcels of similar size and forest land. The property contains an SFR and a
PO Box 2854 Belfair,Washington 98528•Cell Phone 360-620-0618-Office Phone 360-372 2421•boa plepc.com
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Gamez wetland Buffer Mitigation Plan
TWC NO.OSW371
July,2008
Page No.2
garage in addition to other outbuildings, surrounded by residential landscape occupying
the northern quarter of the property. Topography consists of relatively flat landscape,
throughout the majority of the parcel. Forested areas in proximity to the parcel are
comprised of Douglas fir and western hemlock with an understory of Oregon grape, salal,
swordfern,salmonberry and evergreen huckleberry.
A large wetland system is located just outside of the western property boundary. The
wetland contains two parallel swales,of which the western side is an open water complex
while the eastern side,nearest to the property,is a dense shrub community of spires. The
wetland meets criteria for a Category I Wetland,and requires a buffer of 225-feet with an
additional 1 S foot building setback. This buffer encompasses the majority of the parcel.
APPLICABLE SETBACKS
The project site is within the jurisdiction of Mason County. Ordinance 17.01.040
identifies Wetland Areas adopted by Mason County.
The applicable setback for this project is as follows:
Habitat Type Buffer Puildizig Setback from Buffer
Category I Wetland 225' 15'
DESCRIPTION OF HABITAT AND SPECIES
Paget Sound Chinook(Oncorkynchus bkawy"a)-Threatened
Listed as threatened since March 24, 1999 adult Puget Sound Chinook spawn in several
rivers and streams flowing into Puget Sound. There are no streams in proximity to the
parcel that are of suitable size to accommodate use by Puget Sound Chinook. This project
is not likely to have adverse impacts on Puget Sound Chinook due to its limited scale and
lack of suitable Chinook habitat present. No impacts to water quality are predicted with
proposed mitigation.
Ball Trout(Sahw inm makany Threatened
Bull trout typically inhabit very cold, clear headwater streams at high elevations that are
supported by snowmelt. For spawning and early rearing, bull trout require loose, clear
gravel,relatively free of fine sediments. Streams of such nature are not within the vicinity
of the project area A type F stream is mapped as an outlet to the wetland on-site. This is
a seasonal lowland stream with no documented presence of Bull trout
As there are no streams in the vicinity of the project site that are suitable for supporting
Bull trout, the project is not likely to have any adverse impacts on bull trout. R'
Paget Sound Steelhead(Owcorkynckus myMs)-Threatened
Listed as Threatened since May 2007, Puget Sound Stealhead spawn in several streams
throughout Puget Sound. Spawning usually occurs in moderate to steep gradient sections
of streams,usually in heads of riffles or the tails of pools where hydraulic conditions are
conducive to mftgravel flow. Side channels and the anterior portions of islands are also
PO Box 2854 Belfair,Washington 98528•Cell Phone 360-620-0618.Office Phone 360-372 2421• I*.com
Gamez wetland Buffer Mitigation Plan
TWC No.08W371
July,2008
Page No.3
used. Spawn timing for summer steelhead runs typically ranges from mid May through
October while winter run steelhead are present from December through May. Adequate
cover from predation, water temperature, and spawning gravel are important factors for
instream habitat, while little is currently known about specific marine habitat
requirements-
The Type F stream draining out of the wetland may contain suitable steelhead habitat.
However,this project is not likely to.impact steelhead habitat due to its limited scale and
overall distance from the stream and wetland The recommendations provided in this
report are intended to protect water quality and aquatic habitat.
Hood Canal Summer Chum(Oneorhynchus keta)-Threatened
Hood Canal Summer Chum spawning areas in proximity to the site include the Union
River and the Tahuya River. Recovery efforts are in place to restore naturally spawning
summer chum populations to the Tahuya system while the Union stock remains healthy.
The type F stream that drains out of the wetland is accessible to Puget Sound Chinook.
However, suitable habitat is not present due to the limited size and lack of sufficient flow
during the spawning period. Therefore, no impacts to Hood Canal Summer Chum or
associated habitat are predicted with the proposed project. No impacts to aquatic habitat
or water quality are expected to occur.
Bald Eagle(HaUaeetus lencoceplltatas}Threatened
Habitat areas associated with Bald Eagle include uneven aged coniferous stands with
some old-growth components. Nests are typically constructed in larger trees with dead or
broken tops providing an unobstructed view of nearby water. Snags and trees with
exposed lateral limbs,or dead taps are used as perches and defense stations.
There are no documented Bald Eagle nesting sites in the vicinity of the project area The
proposed project site will not require the removal of any trees. Recommended plantings
in Section 63 should improve the potential for use of the site by Bald Eagle in the future.
As no ' habitat features are to be removed, this�P�t ed, project will have no adverse
impacts on bald eagles. The proposed mitigation is expected to provide a net benefit-
Marbled murrelet(Brachyramphus marnwratus)-Threatened
Marbled murrelets are typically associated with coastal habitats and nest in old-growth
forests. murmlets may fly as far as 50 miles inland to nest,however the average distance
is roughly 5-miles from nest to sea It is only during the summer breeding months that
they are commonly found inland. During non-nesting seasons they live at sea murrelets
require tall mossy trees in coniferous old growth forests with cavities on thick branches
where they can construct a cup nest 20-40 meters above the forest floor.
Muredetts have been documented laying eggs on rocky ground habitats only when a
sufficient forest is unavailable. There are no documented nesting sites surrounding the
project site. No potential nesting trees containing platform features are within the project
PO Box 2854 Belfair,Washington 98528•Cell Phone 360-620-0618•Office Phone 360-372-2421•boad40@peoplepc.com
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Gamez Wetland Buffer Mitigation Plan
TWC No.Q8W371
July,2008
Page No.4
area. This project will have no adverse impact on Marbled murrelet given there are no
documented nesting sites or potential nesting trees within the project area
Northern Spotted Owl(Shia occ4mtafts caesura)-Threatened
Spotted owls require a large amount of land for their nesting and hunting grounds; pairs
may occupy up to 58 sq.km. They are territorial and do not migrate, but they may shift
their ranges slightly in response to seasonal changes
Suitable spotted owl habitat includes trees relatively large in diameter, multi-layered
forest canopy with a moderate to high canopy closure in overstory, midstory, and
understory, large, tali, live trees with cavities, broken tops, mistletoe, or platforms of
branches capable of holding accumulated organic matter suitable for use as a nest. Dead
standing trees and fallen decayed trees supporting abundant populations of prey species
are critical to spotted owl populations. Currently there are no spotted owl nesting sites
documented in proximity to the project site.
As spotted owls are currently not present, and the project is of a scale that has no impact
on forested areas, no impacts to spotted owl or their habitat are expected result from the
proposed project.
ANALYSISOF EFFECTS
The project lies within the regulated buffer of a Category I Wetland Project scale in the
protected area is as follows:
Develo t Type Habitat Type Project scale
Addition to an existing structure Category I Wetland Buffer 170 sq.ft.
Vegetation Disturbance
The proposed addition to the existing structure is located in a portion of the ownership
that is currently maintained as open lawn, devoid of native vegetation. Vegetation
enhancement is described in Section 63 is likely to increase vegetative abundance and
diversity within the parcel and increase the overall buffer function.
PO Box 2854 Belfair,Washington 98528•Cell Phone 360-620-0618.Office Phone 360-372 2421•boad40 plepc.com
Gamez Wetland Buffer Mitigation Plan
TWC No.08W371
July,2008
Page No.5
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Photo 1. Approximate location of proposed addition to existing structure.
Designated Critical Habitat for Salmonids
The streams and lakes in the vicinity of the project area are not listed in the NOAA
Fisheries Northwest Region Critical Habitat Designations for West Coast Salmon and
Steelhead in Washington, 2005. Designated Critical Habitat for Salmonids is not within
the vicinity of the project area. Therefore, none of the proposed actions are likely to
destroy or adversely modify designated critical habitat. Actions described in this plan are
not expected to jeopardize the continued existence of any listed species.
Noise Pollution
A slight increase in noise from construction activities is likely to occur during daylight
construction hours. No nesting sites are located within the radii of concern that would be
impacted by noise associated with the proposed project.
Temporary Increase in Sediment and Turbidity During Construction
The proposed work has the potential to temporarily increase turbidity and suspended
sediment within the project area Best Management Practices have been recommended to
avoid any adverse effects associated with sediment and turbidity during project
implementation.
Light and Glare
The proposed project will result in an increase in light and glare commonly associated
with residential construction and land use. Given the scale of surrounding development
local wildlife is likely adapted to light and glare commonly associated with residential
use. The vegetative buffer to be preserved and enhanced between the proposed project
PO Box 2854 Belfair,Washington 98528•Cell Phone 360-620-0618.Office Phone 360-372-2421•boad40@peoplepc.com
Gamez Wetland Buffer Mitigation Plan
TWC No.08W371
July,2008
Page No.6
and the wetland is expected to shield the majority of increased light and glare. No
impacts to the use of the site by wildlife species is likely to result from light and glare
associated with this project.
MITIGATION MEASURES
Minimization Mitigation
The proposed project minimizes impacts to the wetland buffer by limiting the square
footage of the added building footprint to 170 square feet. The addition to the structure is
located 95 feet from the wetland at the nearest point.
Best Management Practices
Recommended Best Management Practices for this project are as follows:
• Perform excavation and site preparation work during dry weather.
• Install silt fencing between the work area and the wetland to prevent erosion and
siltation of waters(See diagram below).
• Minimize amount of erodible soils at any given time to the maximum extent
feasible.
• Check all equipment daily for leaks. Refueling and lubrication of equipment
should occur off site. Do not store any fuel, lubricants, chemicals, or hazardous
substances outside overnight within the project area.
• Do not apply any chemicals when there is a possibility of rain_
• Comply with all permits and requirements of governing authority.
4 NIGH
-ONSTRUCTION
STEEL POST FENCE
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10 FT bW SPACING WITH
WIPE SUPPORT FENCE
6 FT MAW SPAOHG WITHOUT
WIRE SUPPORT FENCE
FILTER FABRIC
PONDING HT.
/FILTER FABRIC
STEEL POST / 0 UPSMIUf2ELY
SIDE OF POST.
7i- 4 RUNOFF
1?.'MIN.
♦"6" TRENCH
WITH COMPACTED
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PO Box 2854 Belfair, Washington 98528•Cell Phone 360-620-0618.Office Phone 360-372-2421•boad40@peoplepc.com
Gamez Wetland Buffer Mitigation Plan
TWC No.08W371
July,2008
Page No.7
Silt Fence Diagram
Silt fence Installation
The presence of exposed soil in proximity to regulated waters poses a risk of erosion and
siltation during storm events. It is recommended that silt fencing be installed between the
work areas and the wetland to avoid siltation of waters. The silt fence should be
inspected and repaired if necessary after each storm event. Sediment should be removed
from the fence and deposited to an area that will not contribute to regulated waters. The
fence can be removed once construction is complete and erodible soils are stabilized
through a permanent erosion feature control such as grass seeding or woodchip
placement.
Enhancement Recommendations
According to Mason County Resource Ordinance 17.01.070F, project within wetland
buffers require a buffer mitigation ratio of 1:1. To mitigate for the 170 square feet of
wetland buffer displaced by the proposed project, it is recommended that an area
occupying 170 square feet strip of the buffer adjacent to the wetland be removed of
invasive species and enhanced with native vegetation. The enhancement zone will
entail an area 5-feet wide and 34 feet long. Currently, this enhancement zone is
occupied by some nonnative species such as Himilayan blackberry and Japanese
knotweed, and contains little native vegetation. A moderately dense forested and shrub
community to be enhanced within this portion of the wetland buffer is likely to improve
the overall buffer function.
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Photo 2. Approximate location of proposed Enhancement Zone.
PO Box 2854 Belfair,Washington 98528•Cell Phone 360-620-0618.Office Phone 360-372-2421•boad40@peoplepc.com
Gamez Wetland Buffer Mitigation Plan
TWC No.08W371
July,2008
Page No.8
Native Plantings
To offset impacts associated with the proposed work within the wetland buffer, it is
recommended that the mitigation zone be removed of Himalayan blackberry and
Japanese knotweed and enhanced with native plants. It is recommended that plants be
installed from potted containers as opposed to the use of bare root seedlings. The
following plant species and potted sizes are recommended:
Trees: western red cedar(Thufa plicata)-2 gallon
Douglas fir(Pseudotsuga memesu)-2 gallon
Shrubs: Oregon grape (Mahoma nervosa)- 1 gallon
shaal(Gaultheria shallon)—1 gallon
evergreen huckleberry(Vaccintwn ovatum)-gallon
nootka rose(Rosa makana)— 1 gallon
salmonberry(Rubes spectabilis)—1 gallon
Pacific Willow(Salix lusida)—1 gallon
Hooker willow(Salix hookeriana)—1 gallon
Scouler willow(Salix scouleriana)—1 gallon
Sitka willow(SaUr sitchensis)—1 gallon
beaked hazelnut(Corylus cornuta)— 1 gallon
Indian plum(Oemleria cerasiformis)—1 gallon
Pra Holodiscus discolor)— 1 gallon
Y(
Pacific ninebark(Physocarpus capitatus)—1 gallon
California black currant(Rites bracteosum)—1 gallon
western.thimbleberry(Rubes pwWflorus)—1 gallon
red elderberry(Scnnbucus racemosa)— 1 gallon
Native Planting GaMelina
It is recommended that plantings be installed within the identified enhancement zone to
achieve the following densities. A minimum of 1 tree specie and five shrub species from
the above list are recommended.
trees- 10' on center
shrubs-5'on center
These densities will provide a moderately dense, slructumnY diverse plant community
within the mitigation zone. To fulfill the above mentioned planting density
recommendation,the enhancement zone will be planted with a total of 2 trees and 5 shrubs.
Typically,planting should occur during winter dormancy. The optimum time for planting
is during February and March, however, the need to complete the project in a timely
manner may call for planting to occur outside optimum time periods. No machinery
earthwork will be necessary to implement this enhancement plan; planting holes for
will be hand dug. No additional clearing or grading
specified vegetation installation
should be necessary for site enhancement All installed vegetation shall be marked with
PO Box 2854 Beffair,Washington 98528•Cell Phone 360-620-0618.Office Phone 360-372-2421•boad4O@peoplepc.com
Gamez Wetland Buffer Mitigation Plan
TWC No.08W371
July,2008
Page No.9
colored flagging to facilitate monitoring inspections. The monitoring program is outlined
to insure project effectiveness.
Invasive species such as Himalayan blackberry,reed canary grass,Japanese knotweed,and
English Ivy may invade the enhancement zone. These species are stubborn competitors
for light and nutrients and limit success of native plants. Invasive species should be
removed from the enhancement zone should they invade. Herbicides_should not be used
to achieve this due to the proximity to the wetland. Persistent cutting during the growing
season is sufficient to offset the rhizomes of invasive species if they become a problem.
MONITORING
Monitoring of the site will begin the first fall following project completion and
maintained on a seasonal basis. The information gathered Will provide the following: 1)
the condition of the reintroduced plant species; 2)the use of the site by wildlife species;
3) any disturbance caused by the development and its effect on the protected zone and
associated aquatic habitat;4) any occurrence of exotic species within the wetland buffer,
5) any corrective measures that may be deemed necessary to provide desired conditions.
This monitoring will be in effect for the duration of three years. The information
gathered will be provided in an annual report and submitted to the Director of Mason
County Department of Community Development.
SUMMARY
This report addresses the effects of the establishment of the addition to an existing garage
within a Category I Wetland buffer. The Category I Wetland requires a 225- foot buffer
with an additional 15-foot building setback. The addition entails constructing an
additional 170 square feet to the south side of the structure. The addition will be 95 from
the wetland at the nearest point,therefore 170 square feet of the proposed addition will be
within the wetland buffer. Mitigation recommendations include vegetative enhancement
within an area occupying 170 square feet adjacent to the wetland. Best Management
Practices are recommended to insure no negative impacts to the wetland.
Mitigation Measures, and Best Management Practices, have been identified to avoid,
minimi�E,and mitigate for impacts associated with proposed construction.
We trust this information is sufficient for your needs at this time.. Thank you for
choosing The Wetland Corps as your consultant. If you have any questions feel free to
call.
Respectfully submitted,
3 PO Box 2854 Belfair,Washington 98528•Cell Phone 360-620-0618.office Phone 360-372-2421•boad40 Peoplepc.com
camez wetland Buffer Mitigation Plan
TWC No.08W371
July,2008
Page No.10
Bond
Senior Ecologist
a "--
Heather Lane
Staff Wetland&Natural Resource Specialist
PO Box 2854 BeVair,Washington 98528-CelI Phone 360-620-0618.Office Phone 360-372-2421-boad4O@peoplepc.com
REFERENCES
Cowardin,L.M.,V. Carter,F.C.Golet and E.T. LaRoe, 1979. Classification of
Wetlands and Deepwater Habitats of the United States.U.S.Fish and
Wildlife Service document FWS/OBS-79/31. 84 pp. Washington,D.C.
Hitchcock,L.C.and A.Cronquist, 1973. Flora of the Pacific Northwest.
University of Washington Press.. 730 pp.
Hruby,T.,2004. Washington State Wetland Rating System for Western Washington—Revised
Washington State Department of Ecology Publication#04406-025.
Munsell Soil Color Charts, 1998. GretagMacbeth. New Windsor,New York.
Pojar,J.and A.MacKinnon, 1994.Plants of the Pacific Northwest Coast. Lone
PinePublishing. 528 pp. Vancouver,British Columbia.
Speare-Cooke,S., 1997. A Field Guide to the Common Wetland Plants of
Western Washington and Northwestern Oregon. Seattle Audubon Society.
417 pp.
US Department of Agriculture,Soil Conservation Service. Soil Survey of Mason
County Area Washington. September, 1951.
US Fish and Wildlife Service. National Wetlands Inventory. 1978.
Washington State Department of Ecology, 1997. Washington State Wetland
Identification and Delineation Manual. Ecology Publication#96-94,
various pagination.Olympia,Washington.
Washington State Department of Ecology, 1993. Washington State Wetlands
Rating System, Western Washington Second Edition.61 pp-Ecology
Publication#93-74.Olympia,Washington-
Washington State Department of Ecology, 1999. Methods for Assessing
Wetland Functions for Reverine and Depressional Wetlands in the
Lowlands of Western Washington. Ecology Publication#99-115.Olympia,
Washington.
United States Fish and Wildlife Service, 1993.National List of Plant Species that
Occur in Wetlands Region 9—Northwest. Resource Management Group
PO Box 2954 Belhir,Washington 98528•Cell Phone 360-620-0618.0ffice Phone 360-372-2421• peoplepc.com
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FIGURE 1 VICINITY MAP
Project Name: Gamez Wetland Buffer
Mitigation
Location: Belfair,Washington
72
Project: TWC0840
THE WETLAND CORPS Client: Arthur Gamez
Date: 7/08
0 100'
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All locations are approximate.
FIGURE 2.SITE MAP
Project Name: Gamez Wetland Buffer
Mitigation
Location: Belfair,Washington
THE 1%'ETL_=AND CORPS Project: TWC0840
Client: Arthur Gamez
Date: 7/08
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Subject Site Soils:
:Ab-Alderwood gravelly sandy loam, S to IS percent slopes. The Alder-wood series consists of brown, well-drained, upland
soils. They have developed from mixed gravelly glacial till dominated by acid igneous rock. The imbedded gravel is mainly
granite and quartzite. Rainfall is 45 to 60 inches a year. The native vegetation is a dense forest consisting almost entirely of
Douglas-fir and a dense understory of salal, Oregon-grape, vine maple, and hucklebeny. Northeast of the Hood Canal the
understory is mainly rhododendron. Alderwood soils occupy the extensive rolling glacial moraines, and they are the dominant
soils in the eastern part of the county. The Alderwood soils are associated with the somewhat excessively drained Everett and
Indianola soils and with the moderately well drained Kitsap soils. Shelton and Hoodsport soils differ from the Alderwood soils
in that they have developed under high rainfall and from glacial till having a much higher content of basic igneous rock. The
Alderwood gravelly sandy loam, 5 to 15 percent slopes (Ab) is the most extensive, soil of the Alderwood sefies. It occupies
undulating to rolling moraines.
Mukilteo peat, 0 to 2 percent slopes The Mukilteo sefies consists of peat that is mainly partly decomposed sedges, spirea,
twigs, and roots. Peat bogs usually are densely covered by spirea and are generally free of trees and other shrubs. Intermixed
with the spirea are various sedges that form a good part, of the peat matefial. Occasionally, Mukilteo peat has a cover of
deciduous trees, brush, and shrubs in place of the spirea.Mukilteo peat is widespread throughout the county, and it comprises
the largest part of the upland bogs. This peat is very poorly drained and often ponded many months of the year. Artificial
drainage can be used to remove excess moisture. Mukilteo peat is more acid and less fertile than McMurray peat. Mukilteo
peat, 0 to 2 percent slopes(Mg).-The surface layer consists of leaves,twigs, and small roots 1 to 2 inches thick. The upper 10
to 12 inches of peat is a granular, fibrous dark-brown mixture of partly decomposed roots, twigs, and fibrous sedges. This is
underlain by more fibrous, less decomposed, brown peat. This grades through fibrous sedge peat, sedimentary peat, or mucky
mineral soil to compact glacial till that is at varying depths below 3 feet. Occasionally, a thin layer or layers of diatomaceous
earth occurs within 1 or 2 feet of the surface. This soil is strongly acid. It is saturated throughout the year and is difficult to
drain.This soil is in capability subclass IIIw.
FIGURE 4 SOIL SURVEY
Project Name: Gamez Wetland Buffer
Mitigation
Location: Belfair,Washington
Project: TWCO"O
THE WFTL__%_ND CORR'S Client: Arthur Gamez
-- — -- — -- — Date: 7/08
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FIGURE 5 DNR STREAM MAP
Project Name: Gamez Wetland Buffer
Mitigation
'iw7r` Location: Belfair,Washington
Project: TWCO840
THE W ETL__"_� N D CORPS Client: Arthur Gamez
Date: 7/08
WETLAND RATING FORM WESTERN WASHINGTON
Name of wetland(if known): Gamez
Location: SEC:05 TWNSHP:23N RNGE:1 W_ (attach map with outline of wetland to rating form)
Persons)Rating Wetland: H.Lane Affiliation: TWC Date of site visit:7/23/08
SUMMARY OF RATING
Category based on FUNCTIONS provided by wetland
I X II III IV
Category I= Score>70 Score for Water Quality Functions 24
Category II= Score.51 -69 Score for Hydrologic Functions 24
Category III= Score 30—50 Score for Habitat Functions 29
Category IV= Score<30 TOTAL Score for Functions 77
Category based on SPECIAL CHARACTERISTCS of Wetland
I H Does not apply X
a
Final Category(choose the"highest"category from above") I
Check the appropriate type and class of wetland being rated.
Wetland Glass
Estuarine De ressional X
Natural Heritage Wetland Riverine
Bog Lake-fringe
Mature Forest Slope
Old Growth Forest Flats
Coastal Lagoon Freshwater Tidal
Interdnnal
None of the above X
ry
l Does the wetland being rated meet any of the criteria below?
If you answer YES to any of the questions below you will need to protect the wetland according to the
d re Iations regarding the special characteristics found in the wetland.
Cheek L *Jr wowYES NO
and Alta#°fie�IEnc[tthd itt tl
SPI. Has the wetland been documented as a habitat for any Federally listed Threatened or X
Endangered plant or animal species(TIE species)?
I For the purposes of this rating system,"documented"means the wetland is on the appropriate
I state or federal database.
SP2. ,Has the wetland been documented as habitat for any State listed Threatened or Endangered X
plant or animal species? For the purposes of this rating system,"documented"means the
wetland is on the appropriate state database. X
SP3. Does the wetland contain individuals of Priority species listed bv the WDFW or the state?
SP4. Does the wetland have a local significance in addition to its functions? For example,the X
1 wetland has been identified in the Shoreline Master Program,the Critical Areas Ordinance,or
in a local management plan as having special significance.
To complete the nextnart of the data sheet you will need to determine the
Hydrogeorng htc Class of the wetland being rated.
The hydrogeomorphic classification groups wetlands in to those that function in similar ways. This simplifies the questions
needed to answer how well the wetland functions. The Hydrogeomorphic Class of a wetland can be determined using the key
below. See p.24 for more detailed instructions on classifying wetlands.
Wetland Rating Form—western Washington 01/04) Page 1 of 8
CATEGORIZATION BASED ON SPECIAL CHARACTERISTICS
Please determine if the wetland meets the attributes described below
and circle the appropriate answers and Category.
Wedgad Type Check off any criteria that apply to the wetland Circle the Category when the appropriate
criteria are met
Cl Estuarine wetlands?(see p.87)
Does the wetland meet the following criteria for Estuarine wetlands?
The dominant water regime is tidal,
Vegetated,and
With a salinity greater than 0.5 ppt.
YES =Go to SC 1.1 No X
SC 1.1 Is the wetland within a National Wildlife Refuge,National Park,National Estuary Reserve,Natural Are
Preserve,State Park or Educational,Environmental,or Scientific Reserve designated under WAC 332- Cat. 1
30-151?
YES =Category I NO=go to SC 1.2
SC 1.2 Is the wetland at least 1 acre in size and meets at least two of the following conditions?
YES =Category I NO=Category II Cat.I
The wetland is relatively undisturbed(has no diking,ditching,filling,cultivation,grazing,and has
less than 10%cover of non-native plant species. If the non-native Spartina sp ,.are only species
that cover more than 10%of the wetland,then the wetland should be given a dual rating(1/I1). Cat.II
The area of Spartina would be rated a Category H while the relatively undisturbed upper marsh
with native species would be a Category 1. Do not,however,exclude the area of Spartina in
deterniming the size threshold of 1 acre. Dual
At least 3/4 of the landward edge of the wetland has a 100 8.buffer of shrub,forest,or un-grazed ring
or un-mowed grassland 1/11
The wetland has at least 2 of the following features: tidal channels,depressions with open water,
or contiguous freshwater wetlands.
C2 Natural Heritage Wetlands(see p. 88)
Natural Heritage wetlands have been identified by the Washington Natural heritage Program/DNR as
either high quality undisturbed wetlands or wetlands that support state Threatened,Endangered,or
Sensitive plant species.
SC 2.1 Is the wetland being rated in a Section/Towaship/Range that contains a natural heritage wetland? (This
question is used to screen out most sites before you need to contact WNHPIDNR)
S/T/R information from Appendix D X or accessed from WNHP/DNR web site
YES Contact WNHP/DNR(see p.88)and go to SC 2.2 NO X
SC 2.2 Has DNR identified the wetland as a high quality undisturbed wetland or as a site with state threatened
or endangered plant species? Cat I
YES =Category I No X
C3 Bogs(see p. 88)
Does the wetland(or part of the wetland)meet both the criteria for soils and vegetation in bogs? Use
1 the key below to identify if the wetland is a bog. If you answer yes you will still need to rate the
'? wetland based on its function.
1. Does the wetland have organic soil horizons(i.e.layers of organic soil),either peats or mucks,that
compose 16 inches or more of the first 32 inches of soil profile? (See Appendix B for a field key to
identify organic soils)? YES=go to question 3 NO=go to question 2
2. Does the wetland have organic soils,either pests or mucks that are less than 16 inches deep over
bedrock,or an impermeable hardpan such as clay or volcanic ash,or that are floating on a lake or
pond? YES=go to question 3 No=is not a bog for purpose of rating
3. Does the wetland have more than 70%cover of mosses at ground level,AND other plants,if
present,consist of the"bog"species listed in Table 3 as a significant component of the vegetation
(more than 30%of the total shrub and herbaceous cover consists of species in Table 3)?
YES=Is a bog for purpose of rating NO=go to question 4
NOTE: If you are uncertain about the extent of mosses in the understory you may substitute that
criterion by measuring the pH of the water that seeps into a hold dug at least 16"deep. If the pH is
less than 5.0 and the"bog"plant species in Table 3 are present,the wetland is a bog.
4. Is the wetland forested(>30%cover)with sitka spruce,subalpine fir,western red cedar,western
hemlock,lodgepole pine,quaking aspen,Englemann's spruce,or western white pine.WITH any of
the species(or combination of species)on the bog species plant list in Table 3 as a significant
component of the ground cover(> 30%coverage of the total shrub/herbaceous cover)? Cat.I
YES=Category I NO=Is not a bog for purpose of rating
'I
Wetland Rating Form—western Washington(11/04) Page 7 of 8
C4 wetlands(seep. 96)
Does the wetland have at least 1 acre of forest that meet one of these criteria for the Department of Fish
and Wildlife's forests as priority habitats?. If you answer yes you will still-need to rate the wetland
based on its function.
Old-growth forests: (west of Cascade Crest) Stands of at least two three species forming a
multi-layered canopy with occasional small openings;with at least 8 trees/acre(20 trees/hectare)
that are at least 200 years of age OR have a diameter at breast height(dbh)of 32 inches(81 cm or
more).
NOTE: The criterion for dbh is based on measurements for upland forests. Two-hundred year old trees
in wetlands will often have a smaller dbh because their growth rates are often slower. The DFW
criterion is and-OR"so old-growth forests do not necessarily have to have trees of this diameter.
Mature forests: (west of the Cascade Crest) Stands where the largest trees are 80—200 years of
OR have an average diameters(dbh)exceeding 21 inches(53 cm);crown cover may be less than
100%;decay,decadence,numbers of snags,and quantity of large downed material is generally
less than that found in old-growth. Cat.I
YES=Category I No=X
C5 winds in Coashl Lagoons(see p. 92)
Does the wetland meet all of the following criteria of a wetland in a coastal lagoon?
The wetland lies in a depressional adjacent to marine waters that is wholly or partially separated
from marine waters by sandbanks gravel banks,shingle,or,less frequently,rocks
The lagoon in which the wetland is located contains surface water that is saline or brackish(>0.5
ppt)during most of the year in at least a portion of the lagoon(needs to be measured near the
bottom.)
YES=Go to SC 5.1 No X not a wetland in a coastal lagoon
SC 5.1 Does the wetland meet all of the following three conditions?
The wetland.is relatively undisturbed(has no diking,ditching,filling,cultivation,grazing)and has
less than 20%cover of invasive plant species(see list of invasive species on p.74).
At least 3/4 of the landward edge of the wetland has a 100 ft.buffer of shrub,forest,or un-grazed
or un-mowed grassland. Cat.I
The wetland is larger than 1/10 acre(4350 square 8.)
YES=Category I No =Category II Cat.II
6 Interdnnal R►etia'ds(see p. 94)
Is the wetland west of the 1889 line(also called the Western Boundary of Upland Ownership or
WBUO)?
YES=Go to SC 6.1 No X not an mterdunal wetland for rating
If you answer yes you will still need to rate the wetland based on its functions.
In practical terms that means the following geographic areas:
. Long Beach Peninsula—lands west of SR 103
. Grayland-Westport—lands west of SR 105
. Ocean Shores- —lands west of SR 115 and SR 109
SC 6.1 Is the wetland one acre or larger,or is it in a mosaic of wetlands that is one acre or larger?
YES=Category II No =go to SC 6.2 Cat.II
SC 6.2 Is the wetland between 0.1 and 1 acre,or is it in a mosaic of wetlands that is between 0.1 and i acre?
YES=Category III Cat.III
Category of wetland based on Special Characteristics
Choose the "highest"rating if wetland falls into several categories,and record on p. 1.
{ If you answered NO for all types enter"Not Applicable"on p. 1
i
i
Wetland gating Form—western Washington(11/04) Page 8 of 8
Classification of Vegetated Wetlands for Western Washington
Wetland Name:Gamez Date: 7/23/08
1. Are the water levels in the wetland usually controlled by tides(i.e.except during floods)?
NO—go to 2 YES—the wetland class is Tidal Fringe
If yes,is the salinity of the water during periods of annual low flow below 0.5 ppt"(parts per thousand)?
YES—Freshwater Tidal Fringe NO—Saltwater Tidal Fringe(Estuarine)
If your wetland can be classified as a Freshwater Tidal Fringe use the forms for Riverine wetlands. If it is a
Saltwater Mal Fringe it is rated as an Estxerhre wetland Wetlands that were call estuarine in the first and second
editions of the rating system are called Salt Water Tidal Fringe in the Hydrogeomorphic Classification. Estuarine
wetlands were categorized separately in the earlier editions,and this separation is being kept in this revision. To
maintain consistency between editions,the term`Estuarine"wetland is kept Please note,however,that the
characteristics that define Category I and II estuarine wetlands have changed(see p.�.
2. Is the topography within the wetland flat and precipitation is only source(>90%)of water to it.
NO—go to 3 YES—The wetland class is Flats
If your wetland can be classified as a"Flats"wetland,use the form for Depressional wetlands.
3. Does the wetland meet both of the following criteria?
The vegetated part of the wetland is on the shores of a body of open water(without any vegetation on the
surface)where at least 20 acres(8ha)are permanently inundated(ponded or flooded);
At least 30%of the open water area is deeper than 6.6(2 m)?
NO—go to 4 YES—The wetland class is Lake-fringe(Lacustrine Fringe)
4. Does the wetland meet all of the following criteria?
The wetland is on a slope(slope can be very gradual).
The water flows through the wetland in one direction(unidirectional)and usually comes from seeps. It may
flow subsurface,as sheetflow,or in a swale without distinct banks.
The water leaves the wetland without being impounded?
NOTE: Surface water does not pond in these types of wetlands except occasionally in very small and
shallow depressions or behind hummocks(depressions are usually<3 ft diameter and less than 1 foot deep).
NO—go to 5 YES—The wetland class is Slope
5. Is the wetland in a valley,or stream channel,where it gets inundated by overbank flooding from that stream or river? The
flooding should occur at least once every two years,on the average,to answer"yes". The wetland can contain
depressions that are filled with water when the river is not flooding.
NO—go to 6 YES—The wetland class is Riverine
6. Is the wetland in a topographic depression in which water ponds,or is saturated to the surface,at some time of the year.
This means that any outlet, if present is higher than the interior of the wetland
NO—go to 7 YES—The wetland class is Depressional
7. Is the wetland located in a very flat area with no obvious depressional and no stream or river running through it and
providing water. The wetland seems to be maintained by high groundwater in the area. The wetland may be ditched,but
has no obvious natural outlet.
No—go to 8 YES—The wetland class is Depressional
8. Your wetland seems to be difficult to classify. For example,seeps at the base of a slope may grade into a riverine
floodplain,or a small stream within a depressional wetland has a zone of flooding along its sides. Sometimes we find
characteristics of several different hydrogeomorphic classes within one wetland boundary. Use the following table to
identify the appropriate class to use for the rating system if you have several HGM classes present within your wetland.
NOTE: Use this table only if the class that is recommended in the second column represents 10%or more of the total area
of the wetland being rated. If the area of the second class is less than 100/6 classify the wetland using the first class.
HGM Classes Within a;Delineated Wetland Boundary 0*,*7 Rating
Slope+Riverine Riverine
Slope+Depressional Depressional
Slope+Lake-fringe Lake-fringe
Depressional+Riverine along stream within bound De ressional
Depressional+Lake-fringe Depressional
Salt Water Tidal Fringe and any other class of Treat as ESTUARINE under wetlands with special
freshwater wetland characteristics
If you are unable still to determine which of the above criteria apply to your wetland,or you have more than 2 HGM classes
within a wetland boundary,classify the wetland as Depressional for the rating.
Wetland Rating Form—western Washington(11/04) Page 2 of 8
WATER UALI`i" tH40TIONS ,lndicatbrs that wetland mpt(ons to improve water quality.
D 1 Does the wetland have the potential to improve water quality?(see p.38)
D 1.1 Characteristics of surface water flows out of the wetland:
. Wetland is a depression with no surface water outlet............................................................points=3
• Wetland has an intermittently flowing,or highly constricted,outlet.....................................points=2 1
• Wetland has an unconstricted surface outlet.........................................................................points= 1
. Wetland is flat and has no obvious outlet and/or outlet is a ditch..........................................points= 1
D 12 The soil 2 inches below the surface is clay,organic,or smells anoxic(hydrogen sulfide or rotten eggs). 4
YES points=4 NO points=0
D 1.3 Characteristics of persistent vegetation(emergent,shrub,and/or forest class):
• Wetland has persistent,ungmzed vegetation>=95%of area............................... points_................ rots 5 3
. Wetland has persistent,ungrazed vegetation>=%2 of area...................................................points=3
• Wetland has persistent,ungmzed vegetation>= 1/10 of area...............................................points= 1
• Wetland has persistent,unsEV.Ag vsgstation< 1110 of area..................................................points=0
D 1.4 aracteristics of seasonal ponding or inundation: This is the area of the wedand that is pone or at
least 2 months, but dries out sometime during the year. Do not count the area that is permanently
ponded. Estimate area as the average condition 5 out of 10 years. NOTE: See text r indicators of
seasonal and permanent inundation. 4
. Area seasonally ponded is> 1/2 total area of wetland..........................................................points=4
• Area seasonally ponded is> 1/4 total area of wetland...........................................................points=2
• Area seasonally ponded is< 1/4 total area of wetland...........................................................points=0
Total for D 1 Add the points in the boxes above 1 12
D 2 Does the wetland have the opportunity to improve water quality?(see p. 44)
Answer YES if you know or believe there are pollutants in groundwater or surface water coming into
the wetland that would otherwise reduce water quality in streams,lakes or groundwater downgradient
from the wetland? Note which of the following conditions provide the sources of pollutants.
Grazing in the wetland or within 150 ft
Unuvated stormwater discharges to wetland
Tilled fields or orchards within 150 ft.of wetland
A stream or culvert discharges into wetland that drains developed areas,residential areas,farmed
fields,roads,or clear-cut logging
X Residential,urban areas,golf courses are within 150 ft.of wetland Multiplier
Wetland is fed by groundwater high in phosphorus or nitrogen
Other 2
YES multiplier is 2 NO multiplier is 1
♦ TOT -Water Quality Functions Multiply the score from D 14 132•then add score to table on p. 1 24
t1t3L�C1C 1rUC`1`IUNS ltidicators:Iltaf wetland fubctions to reduce floodlit and stun de dation.
D 3 Does the wetland have the 22ftnlW to reduce flooding and erosion?(see p.46)
D 3.1 Characteristics of surface water flows out of the wetland:
• Wetland has no surface water outlet.....................................................................................points=4
• Wetland has an intermittently flowing,or highly constricted,outlet.....................................points=2 0
• Wetland is flat and has no obvious outlet and/or outlet is a small ditch.................................points= 1
• Wetland has an unconstricted surface outlet....................................................................-....points=0
D 3.2 Depth of storage during wet periods. Estimate the height of ponding above the bottom of the outlet.
• Marks of ponding are 3 tot.or more above the surface...........................................................points=7
• The wetland is a"headwater wedand"..................................................................................points=5
• Marks of ponding between 2 ft.to<3 ft.from surface.........................................................points=5 7
• Marks are at least 0.5 ft.to<2 ft.from surface....................................................................points=3
• Wetland is flat but has small depressions on the surface that trap water................................points= 1
• Marks of pondLn less than 0.5 ft......................................................................................... ints=0
3.3 Contri ution of wetland to storage in the watershed: Estimate a ratio o upstream basin contributing
surface water to the wetland to the area of the wetland itself.
• The area of the basin is less than 10 times the are of wetland...............................................points=5 5
• The area of the basin is 10 to 100 times the area of the wetland............................................points=3
• The area of the basin is more than 100 times the area of the wetland....................................points=0
• Wetland is in the FLATS class basin=the wetland by definition ......................................points=5
Total for D 3 Add the points in the boxes above 12
D 4 Does the wetland have the opportunity to reduce flooding and erosion?(see p. 49)
Answer YES if the wetland is in a location in the watershed where the flood storage,or reduction in water
velocity,it provides helps protect downstream property and aquatic resources from flooding or excessive and/or
erosive flows. Answer NO if the water coming into the wetland is controlled by a structure such as flood gate,
tide gate,flap valve,reservoir etc.OR you estimate that more than 90%of the water in the wetland is from
groundwater. Note which of thefollowing indicators of opportunity apply.
Wetland is in a headwater of a river or stream that has flooding problems.
X Wetland drains to a river or stream that has flooding problems Multiplier
Wetland has no outlet and impounds surface runoff water that might otherwise flow into a river or p
stream that has flooding problems
Other 2
YES multiplier is 2 MD multiplier is 1
♦ T -Hydrologic Functions Multiply the score from D3 by 134;then add score to table on p. 1 24
Wetland Rating Form-western Washington(11/04) Page 3 of 8
HABITAT"CTIom--ladicators that wetland fimetions to itrvide important habitat,.
H 1 Does the wetland have the noteatial to provide habitat for many species?
H 1.1 Vegetation structure(see P. 73):
Check the types of vegetation classes present(as defined by Cowardin)if the class covers more than
10%of the area of the wetland or 114 acre.
X Aquatic Bed
X Emergent plants
X Scrub/shrub(areas where shrubs have>30%cover) 4
X Forested(areas where trees have>30%cover)
X Forested areas have 3 out of 5 strata(canopy,sub-canopy,shrubs,herbaceous,moss/ground-cover
Add the number of vegetation types that qualify. If you have:
4 types or more...points=4 3 types..points=2
2 types................points= I t type....points=0
H 1.2 Hvdroogerlods(see p.74):
Check the types of water regimes(h)droperiods)present within the wetland The water regime has to
cover more than 10%of the wetland or 114 acre to count(see text for descriptions of hydroperiods).
X Permanently flooded or inundated
X Seasonally flooded or inundated 4 or more types present.....points=3
X Occasionally flooded or inundated 3 types present..................points=2 2
Saturated only 2 types present..................points= 1
Permanently flowing stream or river in,or adjacent to,the wetland
Seasonally flowing stream in,or adjacent to,the wetland
Lake-fringe wetland.................=2 points
Freshwater tidal wetland........=2 points
H 1.3 Richness of Plant Species(see p. 76):
Count the number of plant species in the wetland that cover at least 10 f(different patches of the same
species can be combined to meet the size threshold)
You do not have to name the species. Do not include Eurasian AdiIfoil, reed canarygrass,purple
loosestrife, Canadian Thistle. If you counted: > 19 species.......................points=2
5—19 species....................points= 1 2
List species below(optional): <5 species.........................points=0
H 1.4 Interspersion of Habitats(seep. 77):
Decided from the diagrams below whether interspersion between types of vegetation(described in
HI.1),or vegetation types and unvegetated areas(can include open water or mudflats)is high,medium,
tow,or none.
CD
None=0 points Low=I point Moderate=2 points
_s � 4 3
.t Aye W
[riparian braided channels]
High =3 points
Note: If you have 4 or more vegetation types or 3 vegetation types and open water,the rating is always
"hi
H 1.5 SMial Habitat Features(see p. 78):
Check the habitat features that are present in the wetland. The number of checks is the number of point
you put into the next column.
X Large,downed,woody.debris within the wetland(>4 in.diameter and 6 ft.long)
X Standing snags(diameter at the bottom>4 inches)in the wetland
Undercut banks are present for at least 6.6 ft.(2m)and/or overhanging vegetation extends at least 5
3.3 ft.(Im)over a stream for at least 33 ft.(10m)
X Stable steep banks of fine material that might be used by beaver or muskrat for denning
(>30 degree slope OR signs of recent beaver activity are present
X At least 1/4 acre o thin-stemmed persistent vegetation or woody branches are present in areas that
are permanently or seasonally inundated(structures for egg-laying by amphibians)
X Invasive plants cover less than 25%of the wetland area in each stratum of plants
H 1 TOTAL Score—potential for providing habitat Add the points in the column above 16
Wetland Rating Form—western Washington(11/04) Page 4 of 8
g 2 'Does the wetland have the oouortunity to provide habitat for many species?
H 2.1 Buffers(see P. 81):
Choose the description that best represents condition of buffer of wetland'The highest scoring criterion
that applies to the wetland is to be used in the rating. see text for definition of"undisturbed".
100m(330 ft)of relatively undisturbed vegetated areas,rocky areas,or open water
>95%of circumference. No developed areas within undisturbed part of buffer
(relatively undisturbed also means no grazing).........................................................points=5
100m(330 ft)of relatively undisturbed vegetated areas,rocky areas,or open water
>50%circumference....................................................................................................pouts=4
50m(170 ft)of relatively undisturbed vegetated areas,rocky areas,or open water
>95%circumference.................................................................................................. .points=4
X 100m(330 ft)of relatively undisturbed vegetated areas,rocky areas,or open water
>25%circumference....................................................................................................points=3 3
50m(170 ft)of relatively undisturbed vegetated areas,rocky areas,or open water
for>50%circumference...............................................................................................points=3
if buffer does not meet any of the three criteria above:
No paved areas(except paved trails)or buildings within 25m(80 ft)of wetland>
95%circumference. Light to moderate grazing or lawns are OK..................................points=2
No paved areas of buildings within 50m of wetland for>50%circumference.
Light to moderate grazing or lawns are OK...................................................................points=2
Heavygrazing in buffer............................................................................................... .points=1
Vegetated buffers are<2m wide(6.6 ft)for more than 95%circumference
(e.g.tilled fields,paving,basalt bedrock extend to edge of wetland).............................points=0
Buffer does not meet any of the criteria above...............................................................points=1
H 22 Corridors and Connections(seep.82)
H 2.2.1 Is the wetland part of a relatively undisturbed and unbroken vegetated corridor(either riparian
or upland)that is at least 150 ft.wide,has at least a 30%cover of shrubs,forest or native
undisturbed prairie,that connects to estuaries,other wetlands or undisturbed uplands that are at
least 250 acres in size? (Dams in riparian corridors, heavily used gravel roads,paved roads,
are considered breaks in the corridor).
YES=4 points(go to H 2.3) NO=go to H 2.2.2
H.2.2.2 Is the wetland part of a relatively undisturbed and unbroken vegetated corridor(either riparian 4
or upland)that is at least 50 ft.wide,has at least 30%cover of shrubs or forest,and connects to
estuaries,other wetlands or undisturbed uplands that are at least 25 acres in size? OR a lake-
fringe wetland,if it does not have an undisturbed corridor as in the question above?
YES=2 points(go to H 2.3) NO=go to H 2.2.3
H.2.2.3 Is the wetland:
. Within 5 mi(8km)of a brackish or salt water estuary OR
• Within 3 miles of a large field or pasture(>40 acres)OR YES= i point
. Within 1 mile of a lake greater than 20 acres? NO=0 points
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Page 5 of 8
Wetland Rating Form—western Washington(11/04)
From The Desk of:
Arthur T.Gamez
2151 NE Bear Creek DeWatto Rd
Belfair, WA 98528-5006
Tel 360-275-4218
Cell: 360-509-0598
Fax 360-275-4218
Email: artgamez@msn.com
September 24,2009
Director of Mason County
Department of Community Development
P O Box 186
Shelton WA 98584
Parcel No.: 123053400000
Case No.: MEP2008-00064
Re:First Year Monitoring
Considering the heavy snow we had this past winter,the plants are surviving. As you can see from the pictures it is
difficult to prevent the new native plants from being overrun by invasive plants. In the effort of checking these
invasive plants we lost a Western Red Cedar and have replaced it with another(Plant 5).
This coming year we will implement a better schedule of clearing these invasive plants.
X
Arthur T.Gamez
RECEIVED
SLR 3 Zi"69
MASON COUNTY
nA 125