HomeMy WebLinkAboutHabitat Management Plan 002133007
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WESTECH COMPANY
PO Box 2876
Port Angeles, Washington 98362
Submitted by:
JEFFERSON COUNTY DEPARTMENT OF COMMUNITY DEVELOPMENT
621 Sheridan Street
Port Townsend, Washington 98368
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Submitted to:
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August, 2004
JEFFERSON COUNTY, WASHINGTON
GOSS ROAD ASSESSOR'S PARCEL # 002133007
HABITAT MANAGEMENT AND MITIGATION PLAN
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WW854 Goss Rd Habitat TOe
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15
List of Plant Species on the Site 16
Elements of Habitat Management Plan to be Implemented 17
TABLES
Table 1.
Table 2.
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12
13
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Vicinity Map
Site Area Map
Site Habitat Plan
FIGURES
Figure 1.
Figure 2.
Figure 3.
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6.0 REFERENCES
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5.0 CERTIFICATION
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4.0 CONCLUSIONS AND RECOMMENDATIONS
4.1 Conclusions
4.2 Recommendations
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5
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3.0 HABITAT MANAGEMENT PLAN
3.1 Jefferson County Regulatory Requirements
3.2 Maintenance of Existing Soils and Soil Structure
3.3 Maintenance of Existing Vegetation
3.4 Erosion Control Measures
3.5 Habitat Enhancement (Vegetation Planting)
3.6 Fish and Wildlife Protection
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1.0 INTRODUCTION
2.0 EXISTING CONDITIONS
2.1 Physical Conditions
2.2 Vegetation
2.3 Fish and Wildlife
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2
2
3
PAGE NO.
CHAPTER/SECTION
CONTENTS
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\\1\\1854 Goss Rd Habitat Rpt
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Site reconnaissance surveys were carried out by Dr. G. Bradford Shea, Ecologist during
the period January-March 2003 for the Wetland Delineation A summer season check on
Site conditions were carried out by Dr. Shea on July 16, 2004.
Wetland delineation and initial septic design indicated that the area for the house site was
very small and possibly not feasible using the standard buffer zones. This Habitat
Management Plan has been prepared as per Jefferson County Uniform Development Code
Section 3.6.8g5 and 3.6.8g6 (for buffers of Fish and Wildlife Habitat Areas) and Section
3.6.9 d6 (for Buffer Reduction for Wetlands).
Westech Company previously delineated the stream and wetland on the property (Westech
2003). Creative Design Solutions (CDS) designed a septic system for the property using
Glendon units (CDS 2003). A Geotechnical Study was prepared for the Site by
Northwestern Territories, Inc. in 2001 (NTI2001).
The property described as Parcel # 002133007, (Parcel 3 as recorded in Volume 1 of
Surveys, Page 194) located on Goss Road extension in Jefferson County, Washington, is a
6.63 acre parcel of land owned by Mr. Joseph Langjahr. The property is located in the SW
quarter of Section 13 of Township 30 North, Range 2 West (Figures 1 & 2). The owner
wishes to apply to Jefferson County for septic and building permits under a SPAD
agreement.
1.0 INTRODUCTION
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WW854 Goss Rd Habitat Rpt
Shrubs include ocean spray (Ceanothus velutinus) and red elderberry (Sambucus
racemosa. In addition, a variety of grasses and forbs occupy open areas on the site
including, sword fern (Polvstichum munitum), bracken fern (Pteridium aquilinum), and
salmonberry (Rubus spectabilis). A more complete list of vegetation is shown in Table 1.
Existing vegetation on the Site is a typical lowland forest dominated by alder (Alnus rubra),
Douglas fir (Pseudotsuqa menziesii), and western red cedar (Thuia plicata). Other trees on
the SitEr"~nclude western hemlock (Tsuqa heterophvlla), and big-leaved maple (Acer
macrophvllum ).
2.2 VEGETATION
Hydrology of the Site is that of a typical lowland forest on a moderately shallow slope.
Wherever topography is lower or undulates slightly, wetlands tend to form. The wetland
extends from a point halfway down the drainage (from where it crosses Goss Road) to the
edge of the bluff, widening as it intercepts the terrace above the edge of the bluff. The
wetland is adjacent to the drainage channel at the base of the ravine for about half of its
total length.
Analysis of on-site soils and comparison to SCS mapping seems to indicate areas of
included silt and clay loams within the lower portions of the ravine and underlying the
wetland area near the bluff. Most of the forested upland portion of the Site appears to be
underlain by Clallam gravelly sandy loam (SCS 1975, Westech 2003) with Cassolary sandy
loam occupying areas near the bluff (NTl 2001). The wetland soils appear to be somewhat
shallow above glacial till (6-12 inches), with horizons of less than six inches in some areas.
Soils on the Site are of the Clallam-Hoypus-Dick soil series (SCS 1975). These are
generally shallow, well drained soils underlain by glacial till, loamy sand and gravel or
gravelly sand. The specific soil types found on the Site are Clallam gravelly sandy loam
and Cassolary sandy loam. 80th soils usually overlay glacial till.
2.1 PHYSICAL CONDITIONS 'uJ~)
The Site is located on moderately steeply sloped terrain with lower areas including a ravine
located in the north-central area and a wetland located in the central area near a steep-
sided shoreline bluff. The western portion of the property is shoreline and aquatic lands
(Discovery Bay). Elevation ranges on the upland portions of the property range from 190-
250 feet above mean sea level (msl). The Site vegetation is composed of forest and
forested wetland. The forest areas cover most of the property with the exception of the
western shoreline portion located west of and below the bluff.
2.0 EXISTING CONDITIONS
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WW854 Goss Rd Habitat Rpt
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Wildlife habitat on the Site is very good in its present configuration. Trees have been
preserved as have many shrubs. The previous selective logging has resulted in small
clearings which are excellent habitat for deer or elk. Small mammals and birds also have
good habitat on the property. Shorebirds, fish and shellfish utilize the tidelands and
shorebirds probably also utilize the bluff and nearshore areas.
Generally, fish and wildlife concerns are commonly addressed through restoration of buffer
zones which have been altered or degraded. In the case of this property, the buffer
appears to have been affected minimally by previous activities on the Site. The shoreline
vegetation has been substantiaUy preserved shoreward of the bluff and on the bluff face.
Site vegetation includes old second growth forest, much of it intact older trees from the
early 1900s, only disturbed by selective logging, which apparently was focused near the
wetland and bluff areas.
A variety of fish and wildlife utilize Discovery Bay and its shorelines. Fish and shellfish are
abundant on the tidelands and intertidal zone. The Bay shoreline is part of the parcel and
is fronted by a steep bluff which isolates the inland portion of the parcel from the shore.
The presence of the bluff requires a 150 foot setback for building sites as shown in Figure
3. No construction is allowed within this setback area.
2.3 FISH AND WILDLIFE
The hillslopes of the Site have a large proportion of old trees, some more than 80 years old
(as per coring analysis performed in the wetland delineation study). These areas were
either minimally logged or not logged at all since the early 1900s.
Portions of the Site have been logged, particularly along the area near the bluff which
includes the lower portion of the wetland. This logging appears to have been somewhat
selective and there is a scattering of relatively old trees in these areas (60-80 years old).
These areas are regrowing in young alder and maple trees.
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WW854 Goss Rd Habitat Rpt
3) Limiting grading to within 15 feet from the house foundation in the shoreward
direction.
2) Installation of silt fences at the downhill (and shoreward) limits of construction
.~.:-~. prior to beginning construction
1) Preparation of an engineered drainage and erosion control plan as required
by Jefferson County (Jefferson County 2001)
Existing soils and soil structures should be maintained through implementation of the
following measures:
3.2 MAINTENANCE OF EXISTING SOilS AND SOIL STRUCTURE
The Fish and Wildlife Habitat setback for the stream depends on the stream type.
Westech's Wetland Delineation Report (2003) tentatively classified the stream as a Class 4
or Class 5 stream based on observed conditions (winter conditions). Summer observations
carried out during July 2004 for this report indicate that the stream is essentially a non-
flowing drainage with a small groundwater seep and no defined channel. This intermittant
drainage would thus be a Class 5 stream resulting in a 50 foot buffer zone. Additional
regulatory information is located in Jefferson County Code Section 3 (3.6.8e).
Jefferson County considers Fish and Wildlife Habitat Areas to be those within established
buffer zones of Class 1-5 waters as defined by Chapter 222-16-030 of the Washington
Administrative Code (WAC). The setback from Discovery Bay would be 150 feet from the
shoreline. Distance from the shoreline to the bluff appears to be well in excess of 50 feet
according to existing mapping. Thus this setback would be within 100 feet of the bluff top
and is therefore not a controlling setback.
Jefferson County regulates the Site. No structures are currently permitted within 150 feet of
the bluff top as per NTI's Geotechnical Report. The Habitat Management Plan provisions
below are designed to mitigate any effects that construction of the residence may have on
this shoreline setback zone. The residence itself will be located landward of the 150 foot
setback requirement. All grading will be performed from the landward side, not extending to
within 150 feet of the top of bluff.
3.1 JEFFERSON COUNTY REGULATORY REQUIREMENTS
3.0 HABITAT MANAGEMENT PLAN
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WW854 Goss Rd Habitat Rpt
1) Grading shall be limited to the house pad footprint and an area not to exceed
15 feet from the footprint on the shoreward side (east) and not more than 20
feet on the north and south sides. Grading shall be kept outside the dripline
Erosion control measures will be implemented to protect the upland portion of the property
as well as the bluff and beachfront area. The measures to be implemented are as follows:
3.4 ,EROSION CONTROL MEASURES
Maintenance of existing vegetation is tied to preventing soil erosion and to maintaining a
natural and stable ecosystem on the Site. The owner has made substantial efforts to
maintain natural vegetation on the property in the course of initial surveys. If similar
measures are maintained during the construction of the main residence on the Site, it is
expected that minimal environmental impact will OCCtlr. This includes non-removal of trees
and shrubs outside the construction area and minimization of the grading area for the
residence. These controls are discussed in Sections 3.1 and 3.2 above.
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The most critical item in maintaining vegetation on the Site is place,menf 9ftheho.... rne.s.ite.. .
This can be best accomplished adjacent to the existing access frortl :Goss:'R:o'ad. " This ,.
access is an old logging track which should form the driveway route. The optimal homesite
based on Westech's analysis of field conditions would be immediately west of the lower
Glendon units as shown in Figure 3. Minor reduction of buffer zones would allow
placement of the residence in this area. The area includes an existing clearing, some
young alder trees and only a few conifers.
Implementation of the above measures is expected to minimize erosion a8d sedimentation
which might otherwise reach the bluff or tidelands. ;,' :.,
3.3 MAINTENANCE OF EXISTING VEGETATION
6) Utilize other erosion control measures as necessary, including straw bales or
jute netting during or following construction to prevent runoff. Revegetate all
disturbed areas immediately following construction with native grasses or
non-erosive landscaping
5) Route excess water to drywells or similar structures on the landward side of
the residence to minimize erosion near the bluff. Any water runoff which
cannot be contained on the building site should be tightlined to the beach.
4) Retain all existing vegetation possible outside of grading limits. Retain trees
and shrubs (over eight feet in height) outside of grading limits. Observe all
buffer boundaries and setbacks. Trees may be lightly pruned to enhance
views.
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WW854 Goss Rd Habitat Rpt
Vegetative planting of additional trees or shrubs is only necessary to provide minimal
mitigation for house construction on the graded area surrounding the house, provided that
related provisions of Sections 3.1-3.5 are followed. Such mitigation should include planting
of at least 10-15 native shrub seedlings along the west edge of the homesite to help
diversify that habitat area \vhere the buffers were reduced. These seedlings should consist
of plant~uch as ocean spray, elderberry, etc. Presence of planted seedlings should be
made known to the county inspector prior to final building permit approval. Low shrubs
including salal and Oregon grape should be transplanted along property edges or in
landscape areas when feasible.
Very little vegetation will need to be planted if other measures cited in'_Secti()rt'3::;tl3:4~-:
above are followed carefully. Revegetation around the house is recommended to consist of
native grasses and shrubs. Any landscaping should consider use of native plants
whenever possible. Pruning of trees within the view area should be done according to
accepted nursery standards so as to preserve the health of the tree.
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3.5 HABITAT ENHANCEMENT (VEGETATION PLANTING)
These provisions are expected to result in good control of erosioncjuring,arid after
construction.
5) Upon completion of construction, all graded areas will be landscaped with
non-erodible material and/or seeded with native grasses to minimize erosion.
4) Existing vegetation shall be retained surrounding the areas to be graded.
Said vegetation shall not be disturbed or removed except as otherwise
provided by this plan.
3) Graded areas shall be covered with straw during periods when active
construction is not occurring. No grading shall occur during the period
November 1 - March 1 and any open graded areas existing as of November 1
shall be covered with straw or hay. Straw bales shall be used to control
runoff in any swales or other low spots on the site.
2) A silt fence shall be established at the shoreward grading limit referenced in
#1 above. The silt fence shall be staked at intervals not less than 20 feet and
shall be at least 18 inches in height. Geotextile or similar permeable material
shall be used for silt fences.
of existing trees located outside of these areas so as not to damage the root
zone.
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VVW854 Goss Rd Habitat Rpt
Homeowner compliance with the above measures will help maintain the property in a nearly
natural state and will help minimize environmental impact of the proposed residence.
4) Harvesting of fish or shellfish should be conducted only during the
appropriate state-approved seasons and only by individuals possessing
appropriate licenses.
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3) Non-natural chemical compounds should be minimized or contained. This
includes insecticides, herbicides, and automotive products (oil, gasoline,
antifreeze, brake fluids, etc.). Yard chemicals generally wash or leach to the
lowest point on the property, and then into the surface or groundwater
system. On this Site, any fertilizers, weed killers or other chemicals will likely
enter Discovery Bay. Increasing concentrations of these chemicals can
eventually affect fish, shellfish and aquatic mammals.
2) Pets should be strictly limited and should be fenced near the house or kept
on leashes. Pets are one of the most significant factor in eliminating wildlife,
particularly birds and small mammals, on rural properties.
1) Animals should be neither hunted, trapped, nor pursued unless threatening
life or safety. In the event that any animal becomes a nuisance (e.g.
raccoons raiding food, deer raiding gardens), provision for protecting the
resource should be made (e.g. fencing garden) rather than retaliation against
the animal.
Fish and wildlife protection is largely a matter of common sense by the homeowner. Some
of the most effective provisions for protecting wildlife are not subject to existing ordinances
nor are they particularly amenable to government enforcement. Therefore, the measures
listed below are considered recommended measures for the owners, rather than
enforceable measures that would be listed in any Count'/ permit:
The major recommended fish and wildlife protection measure is siting of the homesite as
designated in Figure 3, and protection of the buffer. This can best be accomplished by
erection of a fence to delineate the homesite from the adjacent buffer zones. Such fence
should be of split rail or similar wood construction and should be placed along the western
limits of grading at the location of the silt fence (which can be removed following
construction and vegetation replanting).
3.6 FISH AND WILDLIFE PROTECTION
The access driveway should be emplaced with gravel and should not be graded below the
level of adjacent tree roots. Care should be taken not to damage existing trees lining the
driveway. Trees which must be removed for access or turning radius reasons should be
carefully felled so as to minimize damage to adjacent trees.
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WW854 Goss Rd Habitat Rpt
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We recommend that Jefferson County issue a SPAD for development of the Site with the
owner or his representative. Following this, we recommend that the access drive and (if
desired by the owner) the homesite be graded and improved with gravel. Exposed soil
should be replanted with native grasses or similar native ground-binding plant cover.
Necessary erosion control measures should be implemented prior to November 1.
We recommend that the building permit for the new home be approved at the location
staked in the field and shown on the enclosed maps, conditioned by the elements of this
Habitat Management Plan (see Table 2). We further recommend that all elements
recommended in Section 3.0-3.6 of this Plan be implemented at appropriate times during
project development.
4.2 RECOMMENDATIONS
The new home will be constructed without removing major trees or shrubs. In accordance
with this Plan, vegetation will remain in a natural condition shoreward of the grading limits
for the home. Implementation of the elements of the Habitat Management Plan in Section
3.0 above will result in protection of shoreline habitat for fish and wildlife and is expected to
result in a condition of "no net impact" from construction of the new home on the property.
The Site is presently undeveloped but has been partially logged, resulting in an access
route into the area designated for placement of the Glendons and the Homesite. The Site
presently contains no structures. Areas have been surveyed for placement of the Glendon
units planned for septic disposal by CDS (2003). A 30 foot setback will be necessary
between the lower Glendons and the house.
4.1 CONCLUSIONS
4.0 CONCLUSIONS AND RECOMMENDATIONS
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WW854 Goss Rd Habitat Rpt
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Date: f? - Je-'J - of'
This Habitat Management Plan has been completed by Dr. G. Bradford Shea, an Ecologist
certified for biological studies by Jefferson County Department of Community Development.
The conclusions of this report reflect the best professional judgment by Dr. Shea and other
staff and Associates of Westech Company. State of the art methods of scientific analysis
have been used to p~are/~is document.
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5.0 CERTIFICATION
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WW854 Goss Rd Habitat Rpt
Westech Company. 2003. Wetland Delineation Report Parcel #002133007. Goss Road
Jefferson County. Washinqton. Port Angeles, Washington.
U.S. Soil Conservation Service (SCS). 1975. Soil Survey of Jefferson County Area.
Washinoton. U.S. Department of Agriculture. Washington, D.C.
Taylor, R.J. 1995. Northwest Weeds. Mountain Press Publishing Co. Missoula, Montana.
Tabor, R.W. and W.M. Cady. 1978. Geolooic Map of the Olympic Peninsula. U.S.
Geological Survey. Miscellaneous Investigations Series, Map 1-994. Tacoma,
Washington.
Pojar, J. and A. MacKinnon. 1994. Plants of the Pacific Northwest Coast. Lone Pine
Publishing Co. Redmond, Washington.
Northwestern Territories, Inc. 2001. Geotechnical Report for Parcel 3, Government Lot 4
Goss Road (Tax Parcel 002133007). Prepared by Mr. Bill Payton, Registered
Geologist with NT/. Port Angeles, Washington.
Lyons, C.P. 1997. Wildflowers of Washinqton. Lone Pine Publishing. Renton,
Washington.
Jefferson County. 2001. Unified Development Code for Jefferson County. Jefferson
County Department of Community Development. Port Townsend, Washington.
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Creative Design Solutions (CDS). 2003. Unpublished Sewage Disposal Design Site Plan
for Parcel #002133007. Port Angeles, Washington.
6.0 REFERENCES
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WW854 Goss Rd Habitat Rpt
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HABITAT MANAGEMENT AND MITIGATION PLAN
GOSS ROAD ASSESSOR'S PARCEL # 002133007
JEFFERSON COUNTY, WASHINGTON
August, 2004
Submitted to:
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JEFFERSON COUNTY DEPARTMENT OF COMMUNITY DEVELOPMENT
621 Sheridan Street
Port Townsend, Washington 98368
Submitted by:
WESTECH COMPANY
PO Box 2876
Port Angeles, Washington 98362
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CONTENTS
CHAPTER/SECTION
PAGE NO.
1.0 INTRODUCTION
2.0 EXISTING CONDITIONS
2.1 Physical Conditions
2.2 Vegetation
2.3 Fish and Wildlife
2
2
2
3
3.0 HABITAT MANAGEMENT PLAN
3.1 Jefferson County Regulatory Requirements
3.2 Maintenance of Existing Soils and Soil Structure
3.3 Maintenance of Existing Vegetation
3.4 Erosion Control Measures
3.5 Habitat Enhancement (Vegetation Planting)
3.6 Fish and Wildlife Protection
4
4
4
5
5
6
7
4.0 CONCLUSIONS AND RECOMMENDATIONS
4.1 Conclusions
4.2 Recommendations
8
8
8
5.0 CERTIFICATION
9
6.0 REFERENCES
10
FIGURES
Figure 1.
Figure 2.
Figure 3.
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12
13
14
Vicinity Map
Site Area Map
Site Habitat Plan
TABLES
Table 1.
Table 2.
15
List of Plant Species on the Site 16
Elements of Habitat Management Plan to be Implemented 17
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WW854 Goss Rd Habitat TOe
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1.0 iNTRODUCTION
The property described as Parcel # 002133007, (Parcel 3 as recorded in Volume 1 of
Surveys, Page 194) located on Goss Road extension in Jefferson County, Washington, is a
6.63 acre parcel of land owned by Mr. Joseph Langjahr. The property is located in the SW
quarter of Section 13 of Township 30 North, Range 2 West (Figures 1 & 2). The owner
wishes to apply to Jefferson County for septic and building permits under a SPAD
agreement.
Westech Company previously delineated the stream and wetland on the property (Westech
2003). Creative Design Solutions (CDS) designed a septic system for the property using
Glendon units (CDS 2003). A Geotechnical Study was prepared for the Site by
Northwestern Territories, Inc. in 2001 (NTI 2001).
Wetland delineation and initial septic design indicated that the area for the house site was
very small and possibly not feasible using the standard buffer zones. This Habitat
Management. Plan has been prepared as per Jefferson County Uniform Development Code
Section 3.6.8g5 and 3.6.8g6 (for buffers of Fish and Wildlife Habitat Areas) and Section
3.6.9 d6 (for Buffer Reduction for Wetlands).
Site reconnaissance surveys were carried out by Dr. G. Bradford Shea, Ecologist during
the period January-March 2003 for the Wetland Delineation A summer season check on
Site conditions were carried out by Dr. Shea on July 16, 2004.
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WW854 Gass Rd Habitat Rpt
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2.0 EXISTING CONDITIONS
2.1 PHYSICAL CONDiTIONS
The Site is located on moderately steeply sloped terrain with lower areas including a ravine
located in the north-central area and a wetland located in the central area near a steep-
sided shoreline bluff. The western portion of the property is shoreline and aquatic lands
(Discovery Bay). Elevation ranges on the upland portions of the property range from 190-
250 feet above mean sea level (msl). The Site vegetation is composed of forest and
forested wetland. The forest areas cover most of the property with the exception of the
western shoreline portion located west of and below the bluff.
Soils on the Site are of the Clallam-Hoypus-Dick soil series (SCS 1975). These are
generally shallow, well drained soils underlain by glacial till, loamy sand and gravel or
gravelly sand. The specific soil types found on the Site are Clallam gravelly sandy loam
and Cassolary sandy loam. Both soils usually overlay glacial till.
Analysis of on-site soils and comparison to SCS mapping seems to indicate areas of
included silt and clay loams within the lower portions of the ravine and underlying the
wetland area near the bluff. Most of the forested upland portion of the Site appears to be
underlain by Cla!lam gravelly sandy loam (SCS 1975, \Nestech 2003) with Cassolary sandy
loam occupying areas near the bluff (NTI 2001). The wetland soils appear to be somewhat
shallow above glacial till (6-12 inches), with horizons of less than six inches in some areas.
Hydrology of the Site is that of a typical lowland forest on a moderately shallow slope.
Wherever topography is lower or undulates slightly, wetlands tend to form. The wetland
extends from a point halfway down the drainage (from where it crosses Goss Road) to the
edge of the bluff, widening as it intercepts the terrace above the edge of the bluff. The
wetland is adjacent to the drainage channel at the base of the ravine for about half of its
total length.
2.2 VEGETATION
Existing vegetation on the Site is a typical lowland forest dominated by alder (Alnus rubra),
Douglas fir (Pseudotsuaa menziesii), and western red cedar (Thuia plicata). Other trees on
the Siter"'nclude western hemlock (Tsuaa heterophvlla), and big-leaved maple (Acer
macrophvllum ).
Shrubs include ocean spray (Ceanothus velutinus) and red elderberry {Sambucus
racemosa. In addition, a variety of grasses and forbs occupy open areas on the site
including, sword fern (Polvstichum munitum), bracken fern (Pteridium aQuilinum), and
salmonberry (Rubus spectabilis). A more complete list of vegetation is shown in Table 1.
WW854 Goss Rd Habitat Rpt
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Portions of the Site have been logged, particularly along the area near the bluff which
includes the lower portion of the wetland. This logging appears to have been somewhat
selective and there is a scattering of relatively old trees in these areas (60-80 years old).
These areas are regrowing in young alder and maple trees.
The hillslopes of the Site have a large proportion of old trees, some more than 80 years old
(as per coring analysis performed in the wetland delineation study). These areas were
either minimally logged or not logged at all since the early 1900s.
2.3 FISH AND WilDLIFE
A variety of fish and wildlife utilize Discovery Bay and its shorelines. Fish and shellfish are
abundant on the tidelands and intertidal zone. The Bay shoreline is part of the parcel and
is fronted by a steep bluff which isolates the inland portion of the parcel from the shore.
The presence of the bluff requires a 150 foot setback for building sites as shown in Figure
3. No construction is allowed within this setback area.
Generally, fish and wildlife concerns are commonly addressed through restoration of buffer
zones which have been altered or degraded. In the case of this property, the buffer
appears to have been affected minimally by previous activities on the Site. The shoreline
vegetation has been substantially preserved shoreward of the bluff and on the bluff face.
Site vegetation includes old second groV\.1h forest, much of it intact older trees from the
early 1900s, only disturbed by selective logging, which apparently was focused near the
wetland and bluff areas.
Wildlife habitat on the Site is very good in its present configuration. Trees have been
preserved as have many shrubs. The previous selective logging has resulted in small
clearings which are excellent habitat for deer or elk. Small mammals and birds also have
good habitat on the property. Shorebirds, fish and shellfish utilize the tidelands and
shorebirds probably also utilize the bluff and nearshore areas.
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WW854 Goss Rd Habitat Rpt
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3.0 HABITAT MANAGEMENT PLAN
3.1 JEFFERSON COUNTY REGULATORY REQUIREMENTS
Jefferson County regulates the Site. No structures are currently permitted within 150 feet of
the bluff top as per NTI's Geotechnical Report. The Habitat Management Plan provisions
below are designed to mitigate any effects that construction of the residence may have on
this shoreline setback zone. The residence itself will be located landward of the 150 foot
setback requirement. All grading will be performed from the landward side, not extending to
within 150 feet of the top of bluff.
Jefferson County considers Fish and Wildlife Habitat Areas to be those within established
buffer zones of Class 1-5 waters as defined by Chapter 222-16-030 of the Washington
Administrative Code (WAC). The setback from Discovery Bay would be 150 feet from the
shoreline. Distance from the shoreline to the bluff appears to be well in excess of 50 feet
according to existing mapping. Thus this setback would be within 100 feet of the bluff top
and is therefore not a controlling setback.
The Fish and Wildlife Habitat setback for the stream depends on the stream type.
Westech's Wetland Delineation Report (2003) tentatively classified the stream as a Class 4
or Class 5 stream based on observed conditions (winter conditions). Summer observations
carried out during July 2004 for this report indicate that the stream is essentially a non-
flowing drainage with a small groundwater seep and no defined channel. This intermittant
drainage would thus be a Class 5 stream resulting in a 50 foot buffer zone. Additional
regulatory information is located in Jefferson County Code Section 3 (3.6.8e).
3.2 MAINTENANCE OF EXISTING SOILS AND SOiL STRUCTURE
Existing soils and soil structures should be maintained through implementation of the
following measures:
1) Preparation of an engineered drainage and erosion control plan as required
by Jefferson County (Jefferson County 2001)
2) Installation of silt fences at the downhill (and shoreward) limits of construction
':.~ 0 prior to beginning construction
3) Limiting grading to within 15 feet from the house foundation in the shoreward
direction.
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WW854 Goss Rd Habitat Rpt
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4) Retain all existing vegetation possible outside of grading limits. Retain trees
and shrubs (over eight feet in height) outside of grading limits. Observe all
buffer boundaries and setbacks. Trees may be lightly pruned to enhance
views.
5) Route excess water to drywells or similar structures on the landward side of
the residence to minimize erosion near the bluff. Any water runoff which
cannot be contained on the building site should be tightlined to the beach.
6) Utilize other erosion c.ontrol measures as necessary, including straw bales or
jute netting during or following construction to prevent runoff. Revegetate all
disturbed areas immediately following construction with native grasses or
non-erosive landscaping
Implementation of the above measures is expected to minimize erosion" and sedimentation ---
which might otherwise reach the bluff or tidelands. c._ .-
3.3 MAINTENANCE OF EXISTING VEGETATION
. ~-~.. -. . ,-.-
The most critical item in maintaining vegetation on the Site is place,menf (Jf4he!h0I116site.
This can be best accomplished adjacent to the existing access fr6rW:G6ss'Ro'ad, --- This-
access is an old logging track which should form the driveway route. The optimal homesite
based on Westech's analysis of field conditions would be immediately west of the lower
Glendon units as shown in Figure 3. Minor reduction of buffer zones would allow
placement of the residence in this area. The area includes an existing clearing, some
young alder trees and only a few conifers.
Maintenance of existing vegetation is tied to preventing soil erosion and to maintaining a
natural and stable ecosystem on the Site. The owner has made substantial efforts to
maintain natural vegetation on the property in the course of initial surveys. If similar
measures are maintained during the construction of the main residence on the Site, it is
expected that minimal environmental impact will occur. This includes non-removal of trees
and shrubs outside the construction area and minimization of the grading area for the
residence. These controls are discussed in Sections 3.1 and 3.2 above.
3.4 ,EROSION CONTROL MEASURES
Erosion control measures will be implemented to protect the upland portion of the property
as well as the bluff and beachfront area. The measures to be implemented are as follows:
1) Grading shall be limited to the house pad footprint and an area not to exceed
15 feet from the footprint on the shoreward side (east) and not more than 20
feet on the north and south sides, Grading shall be kept outside the dripline
WW854 Goss Rd Habitat Rpt
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of existing trees located outside of these areas so as not to damage the root
zone.
2) A silt fence shall be established at the shoreward grading limit referenced in
#1 above. The silt fence shall be staked at intervals not less than 20 feet and
shall be at least 18 inches in height. Geotextile or similar permeable material
shall be used for silt fences.
3) Graded areas shall be covered with straw during periods when active
construction is not occurring. No grading shall occur during the period
November 1 - March 1 and any open graded areas existing as of November 1
shall be covered with straw or hay. Straw bales shall be used to control
runoff in any swales or other low spots on the site.
4) Existing vegetation shall be retained surrounding the areas to be graded.
Said vegetation shall not be disturbed or removed except as otherwise
provided by this plan.
5) Upon completion of construction, all graded areas will be landscaped with
non-erodible material and/or seeded with native grasses to minimize erosion.
These proVIsions are expected to result in good control of erosionquring.aDd after
construction.
3.5 HABITAT ENHANCEMENT (VEGETATION PLANTING)
Very little vegetation will need to be planted if other measures cited in~.Sectidd:3'.1j3:4:.:.
above are followed carefully. Revegetation around the house is recommended to consist of
native grasses and shrubs. Any landscaping should consider use of native plants
whenever possible. Pruning of trees within the view area should be done according to
accepted nursery standards so as to preserve the health of the tree.
Vegetative planting of additional trees or shrubs is only necessary to provide minimal
mitigation for house construction on the graded area surrounding the house, provided that
related provisions of Sections 3.1-3.5 are followed. Such mitigation should include planting
of at least 10-15 native shrub seedlings along the west edge of the homesite to help
diversify that habitat area where the buffers were reduced. These seedlings should consist
of plant~uch as ocean spray, elderberry, etc. Presence of planted seedlings should be
made known to the county inspector prior to final building permit approval. Low shrubs
including salal and Oregon grape should be transplanted along property edges or in
landscape areas when feasible.
WW854 Goss Rd Habitat Rpt
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The access driveway should be emplaced with gravel and should not be graded below the
level of adjacent tree roots. Care should be taken not to damage existing trees lining the
driveway. Trees which must be removed for acc.ess or turning radius reasons should be
carefully felled so as to minimize damage to adjacent trees.
3.6 FISH AND WILDLIFE PROTECTION
The major recommended fish and wildlife protection measure is siting of the homesite as
designated in Figure 3, and protection of the buffer. This can best be accomplished by
erection of a fence to delineate the homesite from the adjacent buffer zones. Such fence
should be of split rail or similar wood construction and should be placed along the western
limits of grading at the location of the silt fence (which can be removed following
construction and vegetation replanting).
Fish and wildlife protection is largely a matter of common sense by the homeowner. Some
of the most effective provisions for protecting wildlife are not subject to existing ordinances
nor are they particularly amenable to government enforcement. Therefore, the measures
listed below are considered recommended measures for the owners, rather than
enforceable measures that would be listed in any County permit:
1) Animals should be neither hunted, trapped, nor pursued unless threatening
life or safety. In the event that any animal becomes a nuisance (e.g.
raccoons raiding food, deer raiding gardens), provision for protecting the
resource should be made (e.g. fencing garden) rather than retaliation against
the animal.
2) Pets should be strictly limited and should be fenced near the house or kept
on leashes. Pets are one of the most significant factor in eliminating wildlife,
particularly birds and small mammals, on rural properties.
3) Non-natural chemical compounds should be minimized or contained. This
includes insecticides, herbicides, and automotive products (oil, gasoline,
antifreeze, brake fluids, etc.). Yard chemicals generally wash or leach to the
lowest point on the property, and then into the surface or groundwater
system. On this Site, any fertilizers, weed killers or other chemicals will likely
enter Discovery Bay. Increasing concentrations of these chemicals can
eventually affect fish, shellfish and aquatic mammals.
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4) Harvesting of fish or shellfish should be conducted only during the
appropriate state-approved seasons and only by individuals possessing
appropriate licenses.
Homeowner compliance with the above measures will help maintain the property in a nearly
natural state and will help minimize environmental impact of the proposed residence.
WW854 Goss Rd Habitat Rpt
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4.0 CONCLUSiONS AND RECOMMENDATIONS
4.1 CONCLUSIONS
The Site is presently undeveloped but has been partially logged, resulting in an access
route into the area designated for placement of the Glendons and the Homesite. The Site
presently contains no structures. Areas have been surveyed for placement of the Glendon
units planned for septic disposal by CDS (2003). A 30 foot setback will be necessary
between the lower Glendons and the house.
The new home will be constructed without removing major trees or shrubs. In accordance
with this Plan, vegetation will remain in a natural condition shoreward of the grading limits
for the home. Implementation of the elements of the Habitat Management Plan in Section
3.0 above will result in protection of shoreline habitat for fish and wildlife and is expected to
result in a condition of "no net impact" from construction of the new home on the property.
4.2 RECOMMENDATIONS
We recommend that the building permit for the new home be approved at the location
staked in the field and shown on the enclosed maps, conditioned by the elements of this
Habitat Management Plan (see Table 2). We further recommend that all elements
recommended in Section 3.0-3.6 of this Plan be implemented at appropriate times during
project development.
We recommend that Jefferson County issue a SPAD for development of the Site with the
owner or his representative. Following this, we recommend that the access drive and (if
desired by the owner) the homesite be graded and improved with gravel. Exposed soil
should be replanted with native grasses or similar native ground-binding plant cover.
Necessary erosion control measures should be implemented prior to November 1.
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5.0 CERTIFICATION
This Habitat Management Plan has been completed by Dr. G. Bradford Shea, an Ecologist
certified for biological studies by Jefferson County Department of Community Development.
The conclusions of this report reflect the best professional judgment by Dr. Shea and other
staff and Associates of Westech Company. State of the art methods of scientific analysis
have been used to pre are this document.
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6.0 REFERENCES
Creative Design Solutions (CDS). 2003. Unpublished Sewage Disposal Design Site Plan
for Parcel #002133007. Port Angeles, Washington.
Jefferson County. 2001. Unified Development Code for Jefferson County. Jefferson
County Department of Community Development. Port Townsend, Washington.
< ~-"".:.::
Lyons, C.P. 1997. Wildflowers of WashinQton. Lone Pine Publishing. Renton,
Washington.
Northwestern Territories, Inc. 2001. Geotechnical Report for Parcel 3. Government Lot 4
Goss Road (Tax Parcel 002133007). Prepared by Mr. Bill Payton, Registered
Geologist with NT/. Port Angeles, \lVashington.
Pojar, J. and A. MacKinnon. 1994. Plants of the Pacific Northwest Coast. Lone Pine
Publishing Co. Redmond, Washington.
Tabor, R.W. and W.M. Cady. 1978. Geolooic Map of the Olympic Peninsula. U.S.
Geological Survey. Miscellaneous Investigations Series, Map 1-994. Tacoma,
Washington.
Taylor, R.J. 1995. Northwest Weeds. Mountain Press Publishing Co. Missoula, Montana.
U.S. Soil Conservation Service (SCS). 1975. Soil Survey of Jefferson County Area,
WashinQton. U.S. Department of Agriculture. Washington, D.C.
Westech Company. 2003. Wetland Delineation Report Parcel #002133007. Goss Road
Jefferson County. Washinqton. Port Angeles, Washington.
WW854 Goss Rd Habitat Rpt
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::~~-'~::;:~:::.1:6i Swanson Ave Po~t Townsend, Washington 98368
· ~ ~ Voice (360) 379-8338 Fax (360) 379-1327 henry@designsbysouzo.com
N ~ Goss Rood Port Townsend, WA 98368
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TABLES
WW854 Goss Rd Habitat Rpt
15
TABLE 1. LIST OF PLANT SPECIES ON THE SITE
Common Name Scientific Name Indicator *
Riparian and Forested Wetland
Alder Alnus Rubra FAC
Western red cedar Thuia plicata FAC -. ~.#-:;<
Trailing blackberry Rubus ursinus FACU
Salmonberry Rubus spectabilis FAC
Western Coltsfoot Petasites friQidus FACW-
Stinging nettle Urtica dioica FAC+
Henderson's sedge Carex hendersonii OBL
Upland Forest
Douglas Fir Pseudotsuqa menziesii FACU
Western Hemlock TsuQa heterophvlla FACU
Western red cedar Thuia plicata FAC
Red alder Alnus rubra FAC
Big-leaved maple Acer macrophvllum FACU
Red elderberry Sambucus racemosa FACU
Ocean spray Holodiscus discolor UPL
Sword fern POlvstichum munitum FACU
Deer fern Blechnum spicant FAC+
Bracken fern pteridium aQuilinum FACU
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*Indicators: UPL = Upland plant, FACU= Facultative Upland Plant (more upland than
wetland), FAC = Facultative (borderline wetland plant), FACW = Facultative Wetland
Plant (prefers wetland conditions), OBL = Obligate (only found in wetlands).
WW854 Goss Rd Habitat Rpt
16
TABLE 2. ELEMENTS OF HABITAT MANAGEMENT PLAN TO BE IMPLEMENTED
Element Phase Implementation
Silt fencing Pre-construction Prior to construction
Selective Plant removal Pre-construction Immediately prior to ~4';'.,
construction
Erosion control Construction Straw bales, netting as
necessary
Drainage Construction As per Engineered Plan
Reseeding Post Construction Immediately following const.
(native plants)
Landscaping Post Construction Native plants preferred
Required Shrub Planting Prior to Final Insp. Plant 10-5 seedlings of
specified species
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WW854 Goss Rd Habitat Rpt
17