HomeMy WebLinkAboutHMP- for MEP2015-00048 - HMP Habitat Managment Plan - 8/30/2015r
THE WETLAND CORPS 7
Welland Delincation Alabilat Managcnrcnt Plans -Riparian Rc.loration -Mitigation -Biological Fvaluation
PARCEL 22107-50-00032 HABITAT MANAGEMENT PLAN
1480 E Mason Lake Drive South
Grapeview, WA
Mason County,Washington
Prepared for.
Gary and Debbie Gessel
5716 8114 Avenue Court West
University Place,WA 98467
Prepared by:
Tobias MacRobie and Lee Boad
August 2015
PO Box 2854.Belfair.WA 98528 cet1:360.620-0618.Office: 360-372-2421 e-mail:wetlar►korps@hotmail.com
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THE WETLAND CORPS
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Wetland Delineation -Ilahilal h4anat;crncnt flans •Riparian Restoration -Mitigation •l3iologieal Evaluation
PARCEL. 22107-50-00032 HABITAT MANA EMENT PLAN
TABLE OF CONTENTS
1.0 PROJECT DESCRIPTION...................................................................................................1
2.0 PROPERTY DESCRIPTION........................... ...,...,....,.....,................................................1
3.0 APPLICABLE SETBACKS..................................................................................................2
4.0 DESCRIPTION OF HABITAT AND SPECIES.................................................................2
5.0 ANALYSIS OF EFFECTS.....................................................................................................4
6.0 MITIGATION MEASURES.................................................................................................6
7.0 MONITORING ......................................................................................................................7
8.0 SUMMARY........................................................................................,....................................8
Fiburgti
Figure I, Site Vicinity Map
Figure 2. Site Plan
Figure 3. National Wetland Inventory Map
Figure 4. Mason County Soil Survey Map
Figure 5. Department ot'Natural Resources Water Resource Map
PO Box 2854, Belfair.WA 98528 cell:360.620.0618.Office: 360-372-2421 e-mail: wetlandcorps@hotmail.com
THE WETLAND CORPS
w'ctland Delineation -I labitai Manag.emcnl flans •Riparian Restoration -Mitigation •Biological Evaluation
August, 2015 Page 1
PARCEL 22107-50-00032 HABI'I'A'I' MAMA(-.t: FN't' PI_,AN
1480 E Mason Lake Drive South
Grapeview,Washington
1.0 PROJECT DESCRIPTION
The details of a i labitat Management flan prepared for Gary and Debbie Gcsscl for the property
located at 1480 Last Mason bake Drive South,Grapeview,Washington 985465(Parcel No.22107-
50-00032) is discussed in full in this report. The site is found in the South-Easter) 1.:4 of Section
7.'lownship 21 North. Range 2 West(See Figure 1. Site Vicinity %lap). The property collectively
occupies an approximated 0.70 acres, according to area calculations of an odd shape based on the
measure tool of the Mason County 61S database.
The purpose of this Habitat Management Plan (HMP) is to address potential impacts resulting
from the construction of a rock wall within the shoreline buffer of Mason Lake. The rock wall
will he constructed to a height of less than 4 feet,and will span an approximated linear distance of
90 feet parallel to the Ordinary High igh Water Mark(OHW.M)of'Mason Lake, located 10 lect inland
from the OI-IWM and at the base of the slope on this property. The wall will be above the OHV►-`M,
and will be; constructed of two man rock. The overall footprint of the rock wall is approximately
90 square feet. The purpose of the rock wall is to protect against erosion at the base of the slope
above the 0I1 WM.
The freshwater shoreline for this parcel is regulated with a 100 foot bufferunderthe Mason County
Resource Ordinance, Fish and �%-ildhtc Conservation Areas section. The objectives of this 10,1P
are as follows:
• To evaluate the potential adverseeffects to critical area functions as well as fish and wildlife
habitat resulting from the proposed construction of a rock wall within the shoreline buffer.
Emphasis is placed oil 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 establishment of the rock wall within the shoreline buffer.
2.0 PROPERTY DESCRIPTION
The property is accessed via E Mason Lake Drive South, which passes adjacent to the southern
side of the property. The parcel is bordered to the cast and west by residential parcels of smaller
size and similar shape. The shoreline of Mason Lake borders the north side of the parcel. The
portion of the property to the north of E Mason Lake Drive South consists of dense brush field
with stumps on a flat to gentle slope, The area near the shoreline consists of a vegetated,gentle to
PO Box 2854. Belfair, WA 98528 ceI1:360.620-0618.Office: 360-372-2421 e-mail: wetlandcorps@hotrnait.com
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Parcel 22107-50-00032 Rock Wall Ilabitat Managernent Plan
August,2015
Page 2
moderate slope with stumps. The shoreline consists of gravelly pebble substrate with mixed shrub
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and gassy vegetation.
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Photo 1. Project area. Approximate rock wall location circled in red.
3.0 APPLICABLE SETBACKS
The project site is within the jurisdiction of Mason County, Ordinance 17.01.040 identifies Fish
and Wildlife Habitat Conservation Areas adopted by Mason County.
The applicable setback for this project is as follows:
Habitat T pe _ Buffer Building Setback from Buffer
Freshwater Shoreline - 100, 0' 71
PO Box 2854.Belfair,WA 98528 cetl:360-620-0618.Office: 360-372-2421 a-mail:wetlandcogn0hotmail.com
Parcel 22107-50-00032 Rock Wall Habitat Management Plan
August,2015
Page 3
4.0 DESCRIVI ION QI IIABITAT AND SPECIES
4.1 Puget Sound Chinook(Oruurhynchus tshanylsha)=Threatened
Listed as threatened since March 24, 1999.adult Puget Sound Chinook spawn in several rivers and
streams flowing into Puget Sound. Suitable spawning habitat is present in the connecting surface
waters of Shumocher Creek, which feeds into Mason Lake, and Sherwood Creek which Mason
Lake drain-, into. Shenvood Creek drains into North Buy and Case Intel.
No impacts to Puget Sound Chinook or associated habitat are predicted as result of the proposed
project. Mason Lake itself is not a spawning area, and the placement of the rock wall 10 feet
inland from the OI IVvM of the Mason Lake shoreline will not significantly impact Puget Sound
Chinook salmon habitat.
4.2 flood Canal Summer Chum (Oita rhynehus keta)-Threatened
Hood Canal Summer Chum migrate immediately to marine waters upon hatching, from freshwater
habitats. This reduces the mortality associated with the variable instream environment, but makes
them more dependent on estuarine and marine habitats such as the shoreline of Hood Canal.
T'hcre are no ilood Canal Summer Chum spawning areas in proximity to the site. Ilood Canal
Summer Chum habitat is not present within this lake due to no connecting surface waters with
Hood Canal. Therelbre, no impacts to Hood Canal Summer Chum or associated habitat are
predicted with the proposed project.
4.3 Bull Trout(Salvelinu.s malma)-Threatened
Hull 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 tine sediments.
Bull trout habitat is present in the connecting surface waters ol'Shumocher Creek, which feeds
into Mason Lake, and Sherwood Creek which Mason Lake drains into. Sherwood Creek drains
into North Bay and Case Inlet. No impacts to Puget Sound Chinook or associated habitat are
predicted as result of the proposed project. Mason Lake itself is not a spawning area, and the
placement of the rock wall 10 feet inland from the 01-IWM ofthc Mason Lake shoreline will not
significantly impact Bull trout habitat.
4.4 Puget Sound Steelhead (Oncorhynchus nkrkiss) Threatened
Listed as Threatened since May 2007, P►igel Sound Stcelhead 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 condition are conducive to intragravel
flow. Side channels and the anterior portions of islands are also used. Spawn timing for summer
steelhead runs typically ranges from niid-May through October while winter run steethead 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.
PO Box 2854. Belfair, WA 98528 cell:360-620-0618.Office: 360-372-2421 e-mail: wetlandcorps@hotmail.com
Parcel 22107-50-00032 Ruck Wall Ilahitat Management Plan
August.2015
Page 4
Steelhead trout habitat is present in the connecting, surface waters of'Shumocher Creek, which
feeds into Mason Lake, and Sherwood Creek which Mason Lake drains into. Sherwood Creek
drains into North Bay and Case Inlet. No impacts to Puget Sound Chinook or associated habitat
are predicted as result of the proposed project. Mason Lake itself is not a spawning area, and the
placement of the rock wall 10 Icet inland from the OI IWM of the Mason Lake shoreline will not
significantly impact Steelhead trout habitat.
4.5 Marbled Murrelet(Brachyramphus inarmoratus)-'Threatened
Marbled Murrelets are typically associated with coastal habitats and nest in old-}growth forests.
Murrclets may fly as far as 50 miles inland to nest, however the average distance is roughly 5-
allics fiom nest to sea. it is only during the summer breeding months that they arc commonly
found inland. During non-nesting seasons they live at sea. Murrelets require tall mossy trees in
conitcrous old growth forests with cavities on thick branches where they can construct a cup nest
20-40 meters above the forest floor.
Murreletts 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 arc within the project area. The project will have no adverse impact on
Marbled Murrelet given there are no documented nesting sites or potential nesting trees in the
vicinity of the project area.
4.6 Northern Spatted Owl (Strcr occidenlalis caurina)-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 oversiory, midstory, and understory, large, tall, 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 population.~. Currently
there are no spotted owl nesting sites documented in proximity to the project site.
Spotted owl habitat is currcnUy not present, nor is the property likely to eventually support spotted
owl habitat given the surrounding area is developed. As spotted owl habitat is not present, no
impacts to spotted owl or their habitat are expected to result from the proposed project.
5.0 ANALYSIS QF INFECTS
The project area lies within the:regulated shoreline buffer. Project scale in the protected area is as
follows:
Development Type Habitat Type Project scale within buffer
____ .. -.,___..._.-_
I Rock Wall Freshwater shoreline buffer —90 sq R
PO Box 2854.Belfair.WA 98528 cell:360-620.0618. Office: 360-372-2421 e-mail: wettandcorpsChotmail-corn
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Parcel 22107-50-00032 Rock Wall I labitat Management Plan
August,2015
Page G
the adverse effects associated with sediment runoff and turbidity impacts during project
implementation.
5.4 Light and Glare
The proposed project will not result in an increase in light and glare.
6.0 MITIGATION MEASURES
6.1 Minimization
The rock wall is necessary to stabilize a bank, which has the potential to erode. It will be
constructed to the minimum height necessary to prevent further upland erosion and be consistent
with the surface elevation of the adjacent upland.
6.2 Enhancement Recommendations
To mitigate for the displacement of shoreline butter associated with this project, it is recommended
that a portion of the shoreline buffer, currently lacking trees, be enhanced with a native tree
community. The area to be enhanced occupies approximately 1500 square Icet upslope of the
project area. This mitigation area has been selected to be enhanced with native trees.
The following species and put sizes are recommended:
Trees: western red cedar(Thuja plirata)-2 gallon
Douglas fir(P.seudotsuga meoLicsh)-2 gallon
A minimum of one tree species from the: list should bc:used.
Native Planting Guidelines
It is recommended that plantings be installed within the identified mitigation zone to achieve the
following densities.
trees-10' on center
These densities will provide a moderately dense,structurally diverse plant community within the
enhancement zone. To fulfill the recommended density, the enhancement zone will be planted
with one tree.
Typically,planting should occur during winter dormancy. The optimum time tor 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 forspecified vegetation installation will be hand
dug. No additional clearing or grading should be necessary for site restoration. All installed
vegetation shall be marked with colored flagging to facilitate monitoring inspection-,. The
monitoring program is outlined to insure:project cMetiveness.
PO Box 2854.Belfair.WA 98528 cell:360-620-0618.Office; 360-372-2421 e-mail:wetlandcorps@hotmail.com
Parcel 22107-50-(K)032 Ruck Wall Ilabitat Management Plan
August.2015
Page 5
5.1 Vegetation Disturbance
The rock wail is necessary to stabilize a slope,containing;native;vegetation and trees. Some native
vegetation will be removed or disturbed for the proposed project. The rock wall will restore stope
stability where trees have been removed. Recent tree removal has consisted of 12 ovcrstory
conifers from this the buffer. Mitigation includes replanting the buffer to compensate for the tree
removal.
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Photo 2. Base of slope to be protected by proposed rock wall.
5.2 Noise Pollution
An incrcaasc in noise from construction activities may occur during daylight construction hours.
No nesting sites are located within the radii of concern that would be impacted by noise associated
with the construction of the rock wall. Wildlife species residing in proximity to the project area
have likely become adapted to noise associated with both residential and recreational shoreline
use.
5 3 Sediment and Turbidity
The proposed work has the potential to temporarily increase turbidity and suspended sediment
within the project area. Rest Management Practices have been outlined in Section 6.3 to minimi7c
PO Box 2854. Belfair,WA 98528 cell:360-620-0618.Office: 360.372-2421 e-mail-weilandcorps@hotmail.com
Parcel 22107-5()4*032 Ruck Wall I labitat Management Plan
August,2015
Nags 7
invasive species may invade the mitigation zone. Invasive species of concern near Mason Lake
are as follows;
• Terrestrial Invasivc Spccics
o Yellow flag(Iris pseudactmuc)
o Reed canary Grass(Phalaris arundinacea)
a Japanese knotweed(l,ullopiu japonica)
a Himalayan blackberry(Ruhus arumenicrelts)
English ivy(Hedera helix)
• Aquatic Invasive Species
o Slender arrowhead(Sugitnariu gramin eu)
0 Big floating bladderwort(Utricularia in/lata)
a Eurasian water-milfoil(MariophtJilunr.cpirunnm)
These species are stubborn competitors for light and nutrients and limit success of native plants.
Invasivc species should be removed from the enhancement zone should they invade. Ilcrbicides
should not be used to achieve this due to the proximity to the shoreline. Persistent cutting during
the growing season is sufficicnt to offset the rhizomes of invasive species if they become a
problem.
6.3 Best Management Practices
Recommended Best Management Practices for this project are as follows:
• Perform excavation and site preparation work during seasonal low water aril dry weather.
• Install silt fencing along the watcrward edge of the construction zone to prevent erosion and
siltation of waters.
• 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
offsite. Do not store any luel, lubricants,chemicals,or hazardous substances outside
overnight within the project area.
• Clearly mark clearing limits with orange flagging or construction fencing.
• Do not apply any chemicals when there is a possibility of rain.
• Comply with all permits and requirements of governing authority.
7.0 MONITORING
Monitoring of the site will begin the first fall following native species plantings and maintained
on an annual basis. The information gathered will provide the following: 1) condition of
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 invasive species within the mitigation zone;5)any corrective measures that may he
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.
PO Box 2854,Belfair.WA 98528 cell:360-620.0618.Office: 360.372.2421 e-mail: wetlandcorps@hotmail.com
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Parcel Location
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Figurc adapted from the
NWI Mapping Websitc
Figure 3. NWI Map
Section 07 Township 21 North Range 2 West
FIGURE 3. NWI WETLANDS MAP
Project Name: Parcel 22107-50-00032 Habitat
Management Plan
--• — Project Number:
Client: Gary and Debra Gesse!
THE WETLAND CORPS Location: Grapeview,WA
Date: 9/2015
Approx imate
Parcel Location
say a
Mason County, Washington(WA645)
Map Map Unit Name
Unit
Symbol
ab Alder.-:ccc graveliv sarcv
Icam.6 to 5 percert slopes
AC Adervxcd gravelly sar'dv
Icam, 15 to 30 percert
sicpes
vi 'Water
FISldiiF 4. MASON COUNTY SOIL SURVEY
Project Name: Parcel 22107-5"0032 Habitat
Management Plan
Project Number:
THE WETLAND CORPS Client: Gary and Debra Gessel
Location: Grapeview,WA
Date: 8/2015
i
Approximate
Parcel Location
Water Bedies streaws WR1A
Fw6 1arfi:el Bari — T vs-, 1 i
lt` — T.1,.:F
0 Ma1, 1.1ntle Feat re 1 a 1. r.p 1.; WA
Ever 6tct
1, t rl ro r
,Est�r:G � r.c�r•1:iti�cl i!rr '�i .-'� �• I
FIGURE 5. WA DNR WATER RESOURCE MAP
Project Name: Parcel 22107-50-00032 Habitat
Management Plan
'r Project Number:
THE WETLAND CO"S Client: Gary and Debra Gessel
Location: Grapeview,WA
Date. 8/2015