HomeMy WebLinkAboutBLD2009-00035 WETLAND DELINEATION ^f= '"1 •
Wiltermood
1 Associates, Inc.
January 26, 2009
Tollefson Builders 1 i
c/o Todd Hulbert
PO Box 100
Chimacum, WA 98325
Re: Wetland Boundary Confirmation and Wetland Categorization for 250 Jansen
Road (Parcel # 977700090) on Marrowstone Island, Jefferson County,
Washington. This lot is located in SE '/4 of Section 4, Township 29 N, Range 1
E. WM. . .
Dear Todd:
This wetland boundary confirmation and wetland categorization was conducted on
January 16, 2009 using the Washington State Wetlands Identification and Delineation
Manual developed by the Department of Ecology (DOE), in accordance with the
Jefferson County Critical Areas Ordinance revised June 2008. The manual uses the
three-wetland parameter methodology when determining the presence or absence of
wetlands and all three parameters of hydric soil, wetland hydrology, and hydrophytic
vegetation must be present for an area to be considered wetland under normal
circumstances.
This categorization was completed for the proposed construction of a garage that will be
located in the footprint of the existing garage, which is situated at the end of a gravel
road that heads south and west from the end of Jansen Road on Marrowstone Island.
The topography is fairly level with a gradual slope down to the west beginning roughly
in the center of the parcel and a highbank waterfront on the east line. The eastern 'Aa has
been cleared and developed with a single family home and garage on the shoreline. The
western 3/4 is dominated mostly by an upland forested community with a narrow
forested wetland system along the west edge. The wetland continues offsite to the north
south and west but Jansen Road has essentially separated this wetland from the
remainder of the wetland to the south and west. This wetland was recently heavily
impacted by clear cut logging which has also degraded the wetland and its connectivity
to other wetland areas and habitats. The wetland meets the criteria for a Category III
system because it has been separated by development from the remainder of the wetland
system. It is a forested system that has moderate to dense shrub and herbaceous layers.
Category III wetlands have a 60 foot buffers (90 feet if it has not been delineated)
required by the Jefferson County Critical Areas Ordinance and these buffers are to be
measured horizontally from the wetland edge. This wetland has not been delineated
instead I walked the wetland edge and confirmed that the wetland is over 500 feet west
1015 S.W.Harper Road,Port Orchard,Washington 98367 (360)876-2403 Fax(360)876-2053 iJ
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Tollefson
January 26, 2009
Page 2
of the proposed garage. Because this wetland was not delineated a 90 foot buffer is
required. All existing and proposed development on this parcel is over 500 feet from the
wetland edge and is outside the required wetland buffer. This lette was prepared to
describe the location and categorization of all regulated wetlands o this parcel or on
adjacent parcels that could effect the onsite development as deline.ted during the site
visit and by the completion of 3 test holes. Maps from the Jefferso County Soil Survey
and National Wetlands Inventory are included to verify the mappea soil units and
mapped wetland areas on or near the parcel.
The on-site soils are mapped as AgB Agnew silt loam 0-8% slopes on the eastern 3/4 and
Belfast silt loam, wet variant on the western 1/4 with CO costal bea•hes on the eastern
most edge along the shoreline, according to the Web Soils Survey i eated by the Soil
Conservation Service, Soil Survey for the Jefferson County Area, ' ashington, August
1975. Belfast soils are classified as hydric and are on the hydric s.ils list in Jefferson
County. See enclosed map for site located on soil survey and the e closed description of
the on-site soils.
The US Fish and Wildlife Service, National Wetlands Inventory ( I) online wetland
mapper, Nordland Quadrangle does not map any wetland within 310 feet of the site. It
maps an estuarine intertidal unconsolidated shoreline along the ent re shoreline to the
east. See attached map for site located on the NWI. The Jefferson County wetland
mapping system shows a large wetland system along the west line at extends offsite to
the north, south and west of the property and another along the sho eline. I was able to
confirm that the wetlands appear to be correctly mapped on the we.t side of the property
but there were no wetlands identified along the shoreline.
A single unmarked test hole was established in the wetland (Test ole 1) and two are
located in the adjacent forested upland (Test Holes 2 and 3). At each test hole, the soils
were examined for the presence of hydric soil conditions and evidence of hydrologic
conditions occurring either in the hole or on the surface of the soil. In addition, the
percent cover of the dominant plant species within a 15-foot radius of the soil hole was
recorded at each of the plots. A summary of the data findings are provided in this letter
and include the general conditions of the soil, any evidence of hydrology seen in the test
sites, and the dominant plant species. See attached site plan for location of the upland
and wetland test holes and the attached data forms for additional information concerning
the individual test holes.
Test Hole 1 is situated near the center of the on-site wetland to show typical wetland
conditions. The soil test hole revealed a single layer profile consisting of a sandy silt
loam with a matrix chroma of 10 YR 2/1. Hydrology was present in the soil hole as
saturated soils at the surface with evidence of standing water to about 6 inches around
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Tollefson
January 26, 2009
Page 3
the test hole. It appears that the wetland has a perched water table and depends on
surface water runoff and precipitation for hydrology. There is the I ossibility for this
wetland to have a ground water association (seep/spring) offsite to e south but I was
not able to confirm that. During the site visit there was no standin: or flowing water
however it appears as though it is seasonally inundated and may flew to the north during
the rainy season. The vegetation in this area is dominated by red a I er (Alnus rubra)
FAC and Scoulers willow (Salix scouleriana) FAC. The shrub lay;r is dominated by
salmonberry (Rubus spectabilis) FAC with lower percentages of h.i dhack (Spiraea
douglasii) FACW. The herbaceous understory is dominated by wa er parsley (Oenanthe
sarmentosa) OBL and slough sedge (Carex obnupta) OBL with to percentages of
manna grass (Glyceria elata.) OBL and horsetail (Equisetum arven e) FAC. This area
was determined to be wetland because there are positive indicators •resent for each of
the three wetland parameters.
Test Hole 2 was completed in the upland immediately outside to the delineated wetland
boundary, while Test Hole 3 was completed near the proposed garage. Test Hole 2 and
3 revealed nearly identical two layer soil profiles consisting of sandy loam. The surface
horizons (0-6") have matrix chroma of 10 YR 3/2 without mottles. The subsurface
horizons (6-16") have matrix chromas of 10 YR 4/3. Hydrology was not present and
there is no evidence of wetland hydrology for any portion of the growing season. The
vegetation in the upland area is mostly dominated by red alder (A. rubra) FAC and
western red cedar (Thuja plicata) FAC and Sitka spruce (Picea sitchensis) FAC with
lower percentages of Douglas fir (Pseudotsuga menziesii) FACU; and Scouler's willow
(S. scouleriana) FAC. The shrub layer is dominated by ocean spray (Holodiscus
discolor) UPL and salmonberry (R. spectabilis) FACU with low percentages of Indian
plum (Oemlaria cerasiformes) FACU and red elderberry (Sambucus racemosa) FACU.
The herbaceous layer is dominated unidentified mowed grasses at Test Hole 3 but Test
Hole 2 is dominated by sword fern (Polystichum munitum) FACU and trailing
blackberry (Rubus ursinus) FACU with low percentages of bracken fern (Pteridium
aquilinum) FACU. The areas sampled at Test Holes 2 and 3 are determined to be non-
wetland because they lack positive indicators for all three wetland parameters.
The delineated wetland has been categorized using the revised Washington State
Wetlands Rating System for Western Washington (Publication #04-06-025), in
accordance with Jefferson County Critical Areas Ordinance. This rating system utilizes
HGM class and functional attributes to rate wetlands for water quality, hydrologic and
habitat functions. The wetland has been rated as a Depressional forested system, which
uses the Depression section of the rating system to determine the ratings for water
quality, hydrologic and habitat functions. According to the revised rating system the
wetland meets the criteria for a Category III depressional wetland system because it
scores 44 points on the enclosed rating form. It scores 10 points for water quality
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Tollefson
January 26, 2009
Page 4
functions, 16 points for hydrologic functions and 18 points for hab tat functions. It rates
as a Category III for functions because it has potential and opportu ity to perform water
quality functions and hydrologic functions. It has neither potential nor opportunity to
perform significant habitat functions because it is surrounded by J sen Road and single
family homes. It also has regular usage by cars and pets walking d wn the road and in
the wetland buffer. All of these things are used•by the rating syste to separate the
wetland into a separate wetland units and a separation in the corridors and connections
to other wetlands.
According to the Jefferson County Critical Areas Ordinance, Category III wetlands
require a 60 foot buffer if the wetland scores less than 20 points for habitat function with
30 feet added if the wetland edge has not been formally delineated. This wetland has
not been delineated so the total buffer width is 90 feet. These buffers are measured
horizontally from the delineated boundary and a 15-foot building and impervious
surface setback is required from the buffer edge. This wetland has not been delineated
because it is over 500 feet from the proposed development and will not be impacted by
the proposed development. See attached site plan for location of the rough wetland
boundary.
A replacement garage is proposed near the southeast end of the property in the footprint
of the existing garage. The proposed building, existing septic system and other
structures have been kept on the eastern 1/4 half of the property while the west side has
been left untouched. No additional clearing of the parcel is proposed at this time so the
remaining forested community will be left intact.
In summary, a replacement garage is proposed near the southeast side of this parcel in
the footprint of the existing garage. The west half of the property consists of an
undisturbed coniferous forest with moderate to dense shrub and herbaceous understory
while the eastern 1/4 was historically cleared and currently contains the single family
home, shop a septic system. There is a large Category III forested wetland along the
west end of the parcel that appears to be part of a much larger system. The wetland has
moderate to poor buffers that are dominated by coniferous and deciduous forested
vegetation (onsite) with recent clear cut offsite to the north and west. Un-delineated
Category III wetlands carry a 90-foot buffer measured from the wetland edge. The
wetland is over 500 feet from the proposed construction and will not have an impact on
the wetland system.
•
Tollefson
January 26, 2009
Page 5
If there are any further questions concerning the non-wetland determination, please feel
free to contact me at (360) 876-2403.
Sincerely
44,./P"--F:=-1"
Vaughn Everitt
Wetland Specialist
Attachments
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APPENDIX B
JEFFERSON COUNTY SOIL SURVEY
DESCRIPTION OF SOIL TYPES
The soils described in this appendix are excerpts, considered applicable t• urban development,
taken from the Soil Conservation Service, Soil Survey of Jefferson Coun y Area, Washington,
August, 1975. For further information, see pages 5-8 of the soil survey.
The Agnew series consists of somewhat poorly drained soils that formed in glacial lake or
marine deposits. They are on terraces, canyon slopes and ocean bluffs . d slopes range from 0
to 50%. Native vegetation consists mainly of Douglas fir, western red ce•ar, red alder, willow
and bigleaf maple. Annual precipitation ranges from 18 to 25 inches and the average air
temperature is 50 degrees F. The above 32 degrees F growing season ra ges from about 240 to
270 days and the above 28 degrees growing season ranges from about 311 to 330 days. These
soils are associated mainly with Clallam, Dick and Hoypus soils. In a re a resentative profile in
a wooded area, organic litter covers the surface and the upper 3 inches of the soil is dark brown
silt loam. Below this, to a depth of 9 inches, is grayish brown, faintly m•ttled silt loam.
Between depths of 9 and 29 inches is grayish faintly mottled silty clay lo. . This is underlain
by grayish-brown silty clay loam and gravelly silty clay loam that extend• to a depth of 60
inches. Most of the acreage of Agnew soils has been cleared. The soils . e used mainly for
permanent pasture, part time diversified farming and rural development. e steeper Agnew
soils are wooded.
AgB Agnew silt loam, 30-50% slopes. This nearly level to gently slopin:, soil is mainly along
ocean bluffs or in valley areas formally occupied by glacial lakes. The s bsoil in many places
contains strata of silty clay loam, fine sandy loam, silty clay and sandy cl,y loam. Runoff is
rapid and the hazard of water erosion is severe. Most areas of this soil ar. wooded. When used
for building sites, the soil often slides when saturated.
Bk Belfast silt loam, wet variant. This nearly level soil is on floodplains. The upper 9 inches
of the soil is dominantly very dark brown or very dark grayish-brown, slightly acie or neutral
silt loam. Below this, to a depth of 20 inches, is dark-gray or dark grayis -brown, slightly acid
or neutral silt loam, fine sandy loam or loam mottled with strong brown .1 d dark yellowish
brown. This soil is poorly drained. Permeability is moderately slow. Th s soil holds 10-12
inches of water available for plants. A seasonal water table is at a depth • '/ to 1 foot. Most of
the acreage of this soil is used for pasture but small areas are used for gr•wing diversified
home garden crops.
M •
JEFFERSON COUNTY
CRITICAL AREAS
ORDINANCE
August 15, 2007
Document 11111 411 Page 1 of 12
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18.15.325 Classification/designation.
(I) Classification. Wetlands shall be classified using the Washington State Department of Ecology's Wetland Rating
System for Western Washington,2nd Edition, 1993. Wetland delineations shall be determined by using the Washington State
Wetlands Identification and Delineation Manual,March 1997,or as amended hereafter.
(2) Designation. As determined using the Washington State Department of Ecology's Wetland Rating System for
Western Washington, 2nd Edition, 1993,all Category I wetlands, Category II wetlands 2,500 square feet or larger in size and
Category III and IV wetlands 10,000 square feet or larger in size,shall be subject to the standards of this Article VI-I.
(3) Sources Used for Identification.Sources used to identify designated wetlands include,but are not limited to:
(a) United States Department of the Interior,Fish and Wildlife Service,National Wetlands Inventory.
(b) Areas identified as hydric soils, soils with significant soil inclusions and "wet spots" within the United
States Department of Agriculture/Soil Conservation Service Soil Survey for Jefferson County.
(c) Washington State Department of Natural Resources, Geographic Information System: Hydrography and
Soils Survey Layers.
(4) Wetland Maps. The wetland maps prepared by the county have been produced for informational purposes only and
are not regulatory devices forming an integral part of this article. [Ord. 11-00§3.6.9(a)]
18.15.330 Regulated activities.
Any land use or development activity shall be subject to the provisions of this Article VI-I, including, but not limited
to,the following activities which are directly undertaken or originate in a regulated wetland or its buffer,unless exempted:
(I) The removal,excavation,grading,or dredging of material of any kind,including the construction of ponds and trails;
(2) The dumping,discharging,or filling of any material;
(3) The draining, flooding,or disturbing of the wetland water level or water table;
(4) The driving of pilings;
(5) The placing of obstructions;
(6) The construction,reconstruction,demolition,or expansion of any structure;
(7) The destruction or alteration of wetland vegetation through clearing, harvesting, shading, intentional burning,
application of herbicides or pesticides, or planting of vegetation that would alter the character of a regulated wetland;
provided,that these activities are not part of a forest practice governed under Chapter 76.09 RCW(Forest Practices Act) and
its rules;or
(8) Activities that result in:
(a) A significant change of water temperature;
(b) A significant change of physical or chemical characteristics of wetlands water sources, including quantity;
or
(c) The introduction of pollutants. [Ord. 11-00 § 3.6.9(b)]
18.15.335 Exempt activities.
(1) Wetlands. The following uses shall be allowed within a regulated wetland without having to meet the protection
standards, or requirements for wetland studies or mitigation set forth in this Article VI-I, if they are not prohibited by any
other law. However, forest practices and conversions are governed by Chapter 76.09 RCW and its rules.
(a) Normal maintenance,repair,or operation of existing structures, facilities, or improved areas,such as on-site
septic systems, lawns, landscaping, orchards, gardens, trails, and driveways. Maintenance and repair do not include
any modification that changes the character, scope, or size of the original structure, facility, or improved area, and
do not include the construction of a maintenance road;
(b) Modification or expansion of existing uses and structures, pursuant to the requirements of the
nonconforming use and structure provisions of this code;
(c) Outdoor recreational activities, including hunting and fishing (pursuant to state law), birdwatching, hiking,
bicycling,boating, and swimming;
(d) The harvesting of wild crops in a manner that is not injurious to natural reproduction of such crops and
provided the harvesting does not require tilling soil, planting crops, or changing existing topography, water
conditions,or water sources;
(e) Existing and ongoing agricultural activities on lands enrolled in the open space tax program for agriculture
or on lands designated as agricultural lands of long-term commercial significance on the official map of
Comprehensive Plan Land Use Designations. For the purpose of this section, "existing and ongoing" means that
agricultural activities have been conducted within the five-year period leading up to the adoption of Ordinance No.
htto://nt5.scbbs.com/cgi-bin/om isapi.dll?clientlD=274544&infobase jeffco1.nfo&record=... 2/8/2006
Document • • Page 2 of 12
5-03 on April 28,2003;
(f) Normal maintenance,but not construction, of drainage ditches;
(g) Use of existing nature trails;
(h) Installation of navigation aids and boundary markers;
(i) Site investigative work necessary for a project application submittal, such as surveys, soil logs, percolation
tests, and other related activities. In every case, wetland impacts shall be minimized and disturbed areas shall be
immediately restored;
(j) Drilling or digging and maintenance of wells; provided, that wetland impacts are minimized and disturbed
areas are immediately restored.
(2) Wetland Buffers. In addition to those activities allowed in regulated wetlands in this article,the following activities
are allowed within wetland buffers without having to meet the protection standards, or requirements for wetland studies or
mitigation set forth in this article; provided, that impacts to buffers are minimized and that disturbed areas are immediately
restored except as specifically allowed in subsection(2)(a)of this section.
(a) In association with a single-family residence only, the establishment and expansion of lawns, landscaping,
orchards,gardens,and fences;provided,that:
(i) Lawns, landscaping, orchards, and gardens shall be allowed within the outer 25 percent of the
buffer width where no reasonable alternative is available. No structure other than fences nor any
impervious surface shall be included in the above;and
(ii) Fences shall be designed to allow the unimpeded passage of surface water beneath them.
(b) Activities having minimal adverse impacts on buffers and no adverse impacts on regulated wetlands. These
include low intensity,passive recreational activities, such as pervious trails,nonpermanent wildlife watching blinds,
scientific or educational activities,and sports fishing or hunting.Trails within buffers shall be designed to minimize
impacts to the wetland,and shall not include any impervious surfaces.
(c) Within the buffers of Category III and IV wetlands only, vegetation-lined swales designed for stormwater
management or conveyance when topographic restraints determine there are no other upland alternative locations.
Swales used for detention purposes may only be placed in the outer 25 percent of the buffer. Conveyance swales
may be placed through the buffer,if necessary. [Ord. 06-04 §2;Ord. 5-03 §2;Ord. 11-00 § 3.6.9(c)]
18.15.340 Protection standards.
(1) General. Application for a project on a parcel of real property containing a designated wetland or its buffer shall
adhere to the requirements set forth below.
(2) Delineation. An applicant submitting a project application shall also submit, and have approved, a wetland
delineation report as specified in JCC 18.15.400.Additionally,the following provisions shall apply:
(a) The location of the wetland and its boundary shall be determined through the performance of a field
investigation utilizing the methodology contained in the Washington State Wetlands Identification and Delineation
Manual,March 1997,or as amended hereafter.
(b) If the wetland is located off of the property involved in the project application and is inaccessible, the best
available information shall be used to determine the wetland boundary and class.
(c) After approval of the delineation report,the wetland boundary shall be staked and flagged in the field.
(d) This requirement may be waived under the following circumstances:
(i) Single-Family Residences. The requirement for a wetland delineation and special report may be
waived for construction of a single-family residence on an existing lot of record if field investigation by
county staff indicates the following:
(A) Sufficient information exists for staff to estimate the boundaries of a wetland without a
delineation;and
(B) The single-family residence and all accessory structures and uses are not proposed to be
located within the distances identified in Table 3-3,below,from the estimated wetland boundary.
(ii) Subdivisions and Short Subdivisions. The requirement for a wetland delineation and special report
will be waived for subdivisions and short subdivisions of an existing lot of record if field investigation by
county staff indicates the following:
(A) Sufficient information exists for staff to estimate the boundaries of a wetland without a
delineation;and
(B) Building envelopes or building setback lines are not proposed to be located within the
distances identified in Table 3-3,below,from the estimated wetland boundary.
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Table 3-3.Minimum Wetland Buffers Necessary as Part of
Qualifying for a Waiver from Delineation and Special Report
Requirements(1,2,3)
Required Distance from
Estimated Wetland
Wetland Category Boundary(feet)(4)
I 225
II 150
III 75
IV 37
Notes:
1. These buffers are one part of the complete requirements necessary to qualify for a waiver. See subsection (2) of
this section.
2. These are not standard wetland buffers:they are optional buffers for cases when a delineation is not made. These
minimum waiver buffers, shown in Table 3-3, are 1.5 times the standard buffer widths identified in this article. If a
single-family residence, building envelope, or setback line in a subdivision is proposed to be closer to the wetland
than the distance identified in the table,a wetland delineation report must be performed.
3.The same opportunities for exemption from delineation shall apply to uncategorized wetlands. The department of
community development shall be responsible for determining the wetland category.
4. The following shall not be located within the distances identified in the table: (a) single-family residences and all
accessory structures and uses;(b) subdivision building envelopes and setback lines.
(3) Drainage and Erosion Control. An applicant submitting a project application shall also submit,and have approved, a
drainage and erosion control plan as specified in this chapter. The plan shall discuss, evaluate and recommend methods to
minimize sedimentation of designated wetlands during and after construction.
(4) Buffer Marking. Upon approval of the delineation report the location of the outer extent of the wetland buffer shall
be marked in the field as follows:
(a) A permanent physical separation along the upland boundary of the wetland buffer area shall be installed and
permanently maintained. Such separation may consist of logs, a tree or hedge row, or other prominent physical
marking approved by the administrator.
(b) Buffer perimeters shall be marked with temporary signs at an interval of one per parcel or every 100 feet,
whichever is less. Signs shall remain in place prior to and during approved construction activities. The signs shall
contain the following statement: "Wetland&Buffer—Do Not Remove or Alter Existing Native Vegetation."
(c) In the case of short plat, long plat, binding site plan, and site plan approvals under this code, the applicant
shall include on the face of any such instrument the boundary of the wetland and its buffer.
(d) The applicant may also choose to dedicate the buffer through a conservation easement or deed restriction
that shall be recorded with the Jefferson County auditor. Such easements or restrictions shall, however, use the
forms approved by the prosecuting attorney.
(5) Buffers—Standard Requirements.The following buffer provisions shall apply:
(a) Buffer areas shall be required to provide sufficient separation between the designated wetland and the
adjacent proposed project.
(b) The appropriate width of the wetland buffer shall be determined by either: application of the standard buffer
widths set forth below in Table 3-4; or by variations to the standard buffers as allowed in subsections(6),(7)and (8)
of this section.
(c) Buffers shall remain naturally vegetated except where the vegetation has been disturbed, invaded by highly
undesirable species (e.g., noxious weeds), or would substantially benefit from the increased diversity of introduced
species. Where buffer disturbance has occurred during construction, replanting with native vegetation shall be
required. Minor pruning of vegetation to enhance views and removal of undesirable species (e.g., alders) may be
permitted by the administrator on a case-by-case basis.
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(d) All buffers shall be measured perpendicularly from the wetland boundary as surveyed in the field.
(e) Standard wetland buffer widths shall be as established in Table 3-4.
Table 3-4.Standard Buffer Widths for Wetlands
Wetland Category Standard Buffer Width
I 150 ft.
II 100 ft.
III 50 ft.
IV 25 ft.
(6) Reducing Buffer Widths. The administrator may reduce the standard wetland buffer widths, when the project
applicant demonstrates both of the following to the satisfaction of the administrator:
(a) Standard wetland buffer width averaging as set forth in this article is unfeasible.
(b) The project application includes a buffer enhancement plan using native vegetation which substantiates that
an enhanced buffer will improve the functional attributes of the buffer to provide additional protection for functions
and values.
(7) Increasing Buffer Widths.The administrator may increase the standard wetland buffer widths when a larger buffer is
necessary to protect wetland functions and values based on local conditions.This determination shall be made only when the
department demonstrates any one of the following through appropriate documentation:
(a) A larger buffer is necessary to maintain viable populations of existing species.
(b) The wetland is used by species listed by the Washington State Department of Wildlife as endangered,
threatened, or sensitive, or has documented priority species or habitats or essential or outstanding potential habitat
for those species, or has unusual nesting or resting sites(e.g.,heron rookeries and raptor nesting trees).
(c) The adjacent land is susceptible to severe landslide or erosion, and erosion control measures will not
effectively prevent adverse wetland impacts.
(d) The adjacent land has minimal vegetative cover or slopes greater than 45 percent.
(8) Averaging Buffer Widths. The administrator may modify the standard wetland buffer widths set forth in this section
by averaging. Buffer width averaging shall be allowed only when an individual or firm meeting the criteria of JCC 18.15.400
(2)demonstrates all of the following to the satisfaction of the administrator:
(a) Width averaging will not adversely impact the wetland functional values;
(b) The total area contained within the wetland buffer after averaging is not less than that contained within the
standard buffer prior to averaging;
(c) The standard buffer width has not been reduced by more than 25 percent. [Ord. 11-00§ 3.6.9(d)]
18.15.345 Noncompensatory enhancement.
Noncompensatory enhancement are those wetland enhancement projects which are conducted solely to increase the
functions and values of an existing wetland and which are not required to be conducted pursuant to the mitigation
requirements of JCC 18.15.350.There are two types of noncompensatory enhancement:
(I) Type 1 Noncompensatory Enhancement. Type 1 noncompensatory enhancement projects involve the filling,
draining, or excavating of a regulated wetland. All applications for Type 1 noncompensatory enhancement projects shall be
accompanied by an enhancement plan prepared in accordance with subsections (1)(a) and (1)(b) of this section, which
demonstrates that the proposed activities will result in an increase in wetland functions and values.
(a) The enhancement plan must be submitted for review and approval by the administrator:
(b) The enhancement plan must either be prepared by a qualified wetlands consultant or accepted in writing by
the U.S.Fish and Wildlife Service,the Washington Department of Fish and Wildlife,or the Washington Department
of Ecology.
(2) Type 2 Noncompensatory Enhancement.Type 2 noncompensatory enhancement projects involve wetland alterations
that do not include the filling, draining, or excavating of a regulated wetland. Such projects might involve the removal of
non-native plant species or the planting of native plant species. All applications for Type 2 noncompensatory enhancement
projects shall be accompanied by an enhancement plan prepared in accordance with subsections (2)(a) through (2)(c) of this
section,which demonstrates that the proposed activities will result in an increase in wetland functions and values.
(a) The enhancement plan shall be submitted for review and approval by the administrator;
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(b) The enhancement plan must include a detailed description of the activity including the following
information:
(i) The goal of the enhancement project;
(ii) What plants,if any,will be removed or planted;
(iii) How the activity will be conducted, including the type(s)of tools or machinery to be used;and
(iv) The qualifications of the individual who will be conducting the enhancement activity.
(c) The enhancement plan must either be prepared by a qualified wetlands consultant or accepted in writing by
the U.S. Fish and Wildlife Service,the Washington Department of Fish and Wildlife, or the Washington Department
of Ecology. [Ord. 11-00 §3.6.9(e)]
18.15.350 Mitigation.
The overall goal of mitigation shall be no net loss of wetland function,value,and acreage.
(1) Mitigation Sequence. Mitigation includes avoiding, minimizing, or compensating for adverse impacts to regulated
wetlands or their buffers. When a proposed use or development activity poses potentially significant adverse impacts to a
regulated wetland or its buffer, the preferred sequence of mitigation as defined below shall be followed unless the applicant
demonstrates that an overriding public benefit would warrant an exception to this preferred sequence.
(a) Avoiding the impact altogether by not taking a certain action or parts of actions on that portion of the site
which contains the regulated wetland or its buffer;
(b) Minimizing impacts by limiting the degree or magnitude of the action and its implementation;
(c) Rectifying the impact by repairing,rehabilitating,or restoring the affected environment;
(d) Reducing or eliminating the impact over time by preservation and maintenance operations during the life of
the action;or
(e) Compensating for the impact by replacing,enhancing,or providing substitute resources or environments.
(2) Compensatory Mitigation — General Requirements. As a condition of any permit or other approval allowing
alteration which results in the loss or degradation of regulated wetlands, or as an enforcement action pursuant to Chapter
18.50 JCC, compensatory mitigation shall be required to offset impacts resulting from the actions of the applicant or any
code violator.
(a) Except persons exempt under this article, any person who alters or proposes to alter regulated wetlands shall
restore or create areas of wetland equivalent to or larger than those altered in order to compensate for wetland losses.
The following Table 3-5 specifies the ratios that apply to creation or restoration which is in-kind, on-site, and is
accomplished prior to or concurrently with alteration:
Table 3-5. Required Replacement Ratios
for Compensatory Wetland Mitigation
Creation and
Wetland Category Restoration') Enhancement(2)
I 6:1 12:1
1I or III
•Forested 3:1 6:1
• Scrub-Shrub 2:1 4:1
•Emergent 2:1 4:1
IV 1.25:1 2.5:1
Notes:
1. The first number in the ratio specifies the acreage of wetlands to be created, and the second number specifies the acreage
of wetlands proposed to be altered or lost. The replacement ratios are derived from Department of Ecology Publication No.
97-112(1998):"How Ecology Regulates Wetlands."
2. Enhancement of existing wetlands may be considered as compensation,but above ratios must then be doubled.
(b) Compensation must be completed prior to wetland destruction,where possible.
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(c) Compensatory mitigation must follow an approved compensatory mitigation plan pursuant to this article,
with the replacement ratios as specified above.
(d) Compensatory mitigation must be conducted on property which will be protected and managed to avoid
further development or degradation. The applicant or code violator must provide for long-term preservation of the
compensation area.
(e) The applicant shall demonstrate sufficient scientific expertise, supervisory capability, and financial
resources, including bonding, to carry out the project.The applicant must demonstrate the capability for monitoring
the site and making corrections if the project fails to meet projected goals.
(3) Compensatory Mitigation—Type,Location,and Timing.
(a) Priority will be given to in-kind, on-site compensation if feasible and if the wetland to be lost has a
moderate to high functional value.
(b) When the wetland to be impacted is of a limited functional value and is degraded,compensation may be of
the wetland community type most likely to succeed with the highest functional value possible.
(c) Out-of-kind compensation may be allowed when out-of-kind replacement will best meet identified goals
(for example, replacement of historically diminished wetland types). Where out-of-kind replacement is accepted,
greater acreage replacement ratios may be required to compensate for lost functional values.
(d) Off-site compensation can be allowed only if:
(i) On-site compensation is not feasible due to hydrology,soils,waves, or other factors;
(ii) On-site compensation is not practical due to probable adverse impacts from surrounding land uses;
(iii) Potential functional values at the site of the proposed restoration are significantly greater than the
lost wetland functional values;or
(iv) Off-site compensation will be conducted in accordance with subsection (4) of this section
(Cooperative Compensation Projects).
(e) Except in the case of cooperative compensation projects,off-site compensation must occur within the same
watershed where the wetland loss occurs; provided, that Category IV wetlands may be replaced outside of the
watershed if there is no reasonable technical alternative. The stormwater storage function provided by Category IV
wetlands must be provided for within the design of the development project.
(f) Except in the case of cooperative compensation projects, in selecting compensation sites applicants must
pursue locations in the following order of preference:
(i) Filled, drained, or cleared sites which were formerly wetlands and where appropriate hydrology
exists;and
(ii) Upland sites, adjacent to wetlands, if the upland is significantly disturbed and does not contain a
mature forested or shrub community of native species,and where the appropriate natural hydrology exists.
(g) Construction of compensation projects must be timed to reduce impacts to existing wildlife and flora.
Construction must be timed to assure that grading and soil movement occurs during the dry season. Planting of
vegetation must be specifically timed to the needs of the target species.
(4) Cooperative Compensation Projects. The county may encourage, facilitate, and approve cooperative projects where
one or more applicants, or an organization with demonstrated capability, may undertake a compensation project if it is
demonstrated that:
(a) Creation of one or several larger wetlands may be preferable to many small wetlands;
(b) The group demonstrates the organizational and fiscal capability to act cooperatively;
(c) The group demonstrates that long term management of the compensation area can and will be provided;and
(d) There is a clear potential for success of the proposed compensation at the identified compensation site.
Conducting compensation as part of a cooperative process does not reduce or eliminate the required replacement
ratios outlined in this article. [Ord.5-03 § 2;Ord. 11-00§3.6.9(f)]
Article VI-J.Special Reports
18.15.355 Waivers.
The administrator many waive the requirement for a special report when an applicant demonstrates all of the following:
(I) The proposal involved will not affect the environmentally sensitive area in a manner contrary to the goals,purposes
and objectives of this code.
(2) The minimum protection standards required by this section are satisfied. [Ord. 4-02 §2;Ord. 11-00 § 3.6.10(a)]
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'.18.15.360 General contents.
(1) Scale Map and Written Report. Special reports for environmentally sensitive areas shall include a scale map of the
development proposal site and a written report.
(2) Impacts Assessment. The special report shall identify and characterize any critical area as a part of the larger
development proposal site,assess impacts of the development proposal on any environmentally sensitive areas on or adjacent
to the development proposal site,and assess the impacts of any alteration proposed for a critical area.
(3) Protection Mechanisms. The special report shall propose adequate protection mechanisms that may include
mitigation,maintenance and monitoring plans,and performance surety.
(4) Preparer— Proof of Qualifications. Special reports shall include documentation certifying the qualifications of the
preparer. [Ord.4-02 §2;Ord. 11-00 § 3.6.10(b)]
18.15.365 Retaining consultants.
Jefferson County may retain consultants to assist in the review of special reports outside the range of staff expertise.
The applicant shall pay for the costs of retaining said consultants. [Ord.4-02 § 2;Ord. 11-00 §3.6.10(c)]
18.15.370 Responsibility.
(1) General. Special reports shall include documentation certifying the qualifications of the preparer.
(2) Determining Accuracy and Sufficiency. The administrator shall verify the accuracy and sufficiency of all special
reports.
(3) Nonacceptance of Inaccurate or Insufficient Reports. If the administrator finds that a special report does not
accurately reflect site conditions, or does not incorporate appropriate protection mechanisms, the administrator shall issue a
report citing evidence (e.g., soil samples, well log data, etc.)that demonstrates where the special report is insufficient or in
error. The applicant may then either revise the special report and submit another special report, or appeal the administrative
determination pursuant to this code. [Ord.4-02 §2;Ord. 11-00 § 3.6.10(d)]
18.15.375 Aquifer recharge area report.
(1) General. Aquifer recharge area reports serve as the primary means for Jefferson County to verify the accuracy of its
critical aquifer recharge area map and to determine specific aquifer protection measures to be applied to prevent significant
adverse groundwater quality impacts.
(2) Aquifer Recharge Area Report Content. An initial evaluation shall be made by a qualified groundwater
scientist/engineer.The aquifer recharge area report shall include:
(a) A detailed description of the project,including all processes and other activities which have the potential for
contaminating groundwater;
(b) A hydrogeologic evaluation which includes,at a minimum:
(i) A description of the hydrogeologic setting of the aquifer region;
(ii) Site location,topography,drainage,and surface water bodies;
(iii) Soils and geologic units underlying the site;
(iv) Groundwater characteristics of the area, including flow direction and gradient, and existing
groundwater quality;
(v) The location and characteristics of wells and springs within 1,000 feet of the site;
(vi) An evaluation of existing groundwater recharge;and
(vii) A discussion and evaluation of the potential impact of the proposal upon groundwater recharge;
(c) A contaminant transport analysis for the uppermost groundwater supply aquifer assuming an accidental spill
or release of project specific contaminants or on-site sewage discharge,or both if applicable;
(d) A discussion and evaluation that details available on-site spill response and containment equipment,
employee spill response training, and emergency service coordination measures;
(e) Proposed best management practices to minimize exposure of permeable surfaces to potential pollutants and
to prevent degradation of groundwater quality;and
(f) Requirements for a monitoring program with financial guarantees/assurances that the monitoring program
will be implemented.
(3) Professional Qualifications. The minimum qualifications for groundwater scientists and engineers performing
groundwater and contaminant transport evaluations and preparing aquifer recharge area reports shall be established pursuant
to acceptable industry standards for training and experience and as established by the state of Washington in the Washington
Administrative Code or by statute.
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(4) County Review. Reports shall be forwarded to the Jefferson County environmental health division for technical .`
review. The environmental health division shall review the reports within 30 days of receipt to determine their adequacy.The
county may request additional information in order to determine the adequacy of the reports. The administrator shall
.determine appropriate conditions as identified in the report to mitigate proposed land uses. The administrator shall be
authorized to collect fees necessary to recover costs associated with processing and review of aquifer recharge area reports,
implementation of the protection standards contained in this chapter, and administration of the general provisions of the
critical aquifer recharge area provisions of this code. Such fees will be incorporated into the Jefferson County Fee Schedule.
[Ord.4-02 § 2;Ord. 11-00 § 3.6.10(e)]
18.15.380 Drainage and erosion control plan.
(1) General. This plan shall address best management practices which are physical, structural or managerial practices,
that when used singly or in combination,prevent or reduce pollution of water.
(2) Qualifications of the Preparer. Drainage and erosion control plans shall be prepared by a licensed professional
engineer,except for small parcel erosion control plans.
(3) Information Requirements. The design standards and information requirements for submission of drainage and
erosion control plans shall be established in accordance with the Department of Ecology's Stonnwater Management Manual
currently adopted by Jefferson County. [Ord. 11-00 § 3.6.10(f)]
18.15.385 Geotechnical report.
(1) General. This report shall include a description of the geology of the site, conclusions and recommendations
regarding the effect of geologic conditions on the proposal, and opinions and recommendations on the suitability of the site
to be developed.
(2) Qualifications of the Preparer. Geotechnical reports shall be prepared by a licensed geotechnical engineer, a
professional geologist, or a licensed professional engineer knowledgeable in regional geologic conditions with professional
experience in landslide, erosion,or seismic hazard evaluation.
(3) Information Requirements.
(a) A description of the geologic setting of the region,based upon readily available data, including:
(i) Site location and topography;
(ii) Soils and geologic units underlying the site;and
(iii) The location and characteristics of springs within 1,000 feet of the site.
(b) An evaluation of the potential impact of the proposal upon existing geological hazards.
(c) A discussion and evaluation of the potential impact of the proposal upon existing geological hazards.
(d) Recommendations on appropriate protection mechanisms, if necessary, to minimize the risk of erosion or
landslide. [Ord. 11-00§ 3.6.10(g)]
18.15.390 Grading plan.
(1) General. This plan shall identify the proposed development project including the movement of material on-site,
along with the proposed and existing contours of the site,and cross-sections thereof.
(2) Qualifications of the Preparer. Grading plans shall be prepared by a licensed professional engineer or an individual
with at least three years experience in the preparation of grading plans who is knowledgeable of soil conditions and geology
in Jefferson County.
(3) Information Requirements.
(a) A description of the general vicinity of the proposed site.
(b) The property limits and accurate contours of existing ground and details of terrain and area drainage.
(c) Limiting dimensions, elevations of finish contours to be achieved by the grading, and proposed drainage
channels and related construction.
(d) Detailed plans of all surface and subsurface drainage devices, walls, cribbing, dams and other protective
devices to be constructed with, or as a part of, the proposed work together with a map showing the drainage areas
and the estimated runoff of the areas served by any drains.
(e) The location of any buildings or structures on the property where the work is to be performed and the
location of any buildings or structures on land of adjacent owners that are within 15 feet of the property or which
may be affected by proposed grading operations.
(f) A discussion and evaluation of the potential impact of the proposed grading upon designated critical areas.
(g) Recommendations on appropriate protection mechanisms,if necessary,to prevent degradation of designated
critical areas and to ensure public safety. [Ord. 11-00 § 3.6.10(h)]
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18.15.395 Habitat management plan.
(1) General. This report shall identify how the development impacts of the proposed project will be mitigated. The
Washington Department of Fish and Wildlife Priority Habitat and Species Management Recommendations shall be the basis
for this report.
(2) Qualifications of the Preparer. Habitat management plans shall be prepared by persons who have a minimum of a
bachelor's degree in wildlife or fisheries habitat biology, or a related degree in a biological field from an accredited college
or university with a minimum of four years experience as a practicing fish or wildlife habitat biologist.
(3) Information Requirements.
(a) A map(s)prepared at an easily readable scale, including the following information:
(i) The location of the proposed development site, including property limits;
(ii) The relationship of the site to surrounding topographic and cultural features;
(iii) The nature and density of the proposed development or land use change;
(iv) Proposed building locations and arrangements;and
(v) The boundaries of forested areas.
(b) A legend that includes the following information:
(i) A complete and accurate legal description as prescribed by the triggering application form (the
description shall include the total acreage of the parcel);
(ii) Title, scale and north arrows;
(iii) Date, including revision dates, if applicable; and
(iv) Certificates by a professional biologist as appropriate.
(c) A report that contains the following information:
(i) A description of the nature,density and intensity of the proposed development in sufficient detail to
allow analysis of such land use change upon identified fish and wildlife habitat;
(ii) The applicant's analysis of the effect of the proposed development, activity or land use change
upon the fish or wildlife species identified by the Washington Department of Fish and Wildlife within the
identified priority habitat,utilizing the management guidelines;
(iii) A plan by the applicant that shall explain how any adverse impacts created by the development
will be mitigated.
(d) Possible mitigating measures that may include,but are not limited to:
(i) Establishment of buffer zones;
(ii) Preservation of critically important plants and trees;
(iii) Limitation of access to habitat area;
(iv) Seasonal restriction of construction activities; and
(v) Establishing a timetable for periodic review of the plan. [Ord. 11-00 § 3.6.10(i)]
18.15.400 Wetland delineation report.
(1) General. This report shall be required when a proposed development encroaches upon a designated wetland or its
buffer,and shall be used to identify the boundaries and classification of the designated wetland.
(2) Qualifications of the Preparer. Wetland delineation reports shall be prepared by either a biologist with wetlands
expertise, or an individual or firm who has been certified by the United States Army Corps of Engineers, Region 10, to
perform wetland delineations.
(3) Information Requirements.
(a) A map(s)prepared at an easily readable scale, including the following information:
(i) Wetland boundaries;
(ii) Sample site and sample transects;
(iii) Boundaries of forested areas; and •
(iv) Boundaries of wetland classes if multiple classes exist.
(b) A legend that includes the following information:
(i) A complete and accurate legal description as prescribed by the triggering application form (the
description shall include the total acreage of the parcel);
(ii) Title,scale and north arrows;
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(iii) Date, including revision dates,if applicable; and .'
(iv) Certificates by a professional biologist as appropriate.
(c) A report that contains the following information:
(i) A discussion of the delineation methods and results, with special emphasis on technique used from
the Washington State Wetlands Identification and Delineation Manual, March 1997, or as amended
hereafter;
(ii) A description of relevant site information acquired from the National Wetland Inventory maps and
the Soil Survey for Jefferson County;
(iii) The acreage of each wetland on the site,based on the survey, if the acreage will impact the buffer
size determination or the project design;
(iv) All completed field data sheets numbered to correspond to each sample site;
(v) Project cross-sections, both before and after completion, in relation to the surface elevation of the
wetland must be indicated for proposed activities which involve cutting or filling operations within the
wetland or its proposed buffer;
(vi) Classification of the wetland in accordance with the standards adopted in this chapter and a
detailed written analysis of the existing regulated wetland including: vegetation communities classified per
the U.S. Fish and Wildlife Service Classification of Deepwater Habitats (1979); species composition of
vegetation communities, including presence and percent cover; existing soils; and existing hydrologic
conditions including inflow/outflow,source of water within the system,relative water quality, and seasonal
changes in hydrology,if applicable;
(vii) A detailed analysis of wildlife species use of the wetland and its buffer;
(viii) A detailed analysis of the existing wetland buffer including species composition and percent
coverage, whether the buffer is disturbed or not, and the functional value of the buffer in relation to the
regulated wetland;
(ix) If the development activity would eliminate all or part of a regulated wetland then a detailed
compensatory mitigation plan as outlined in subsection(4)of this section must be provided.
(4) Mitigation Plan Contents.All wetland restoration,creation,and enhancement projects required by this code,either as
a condition of project approval or as the result of an enforcement action, shall follow a mitigation plan prepared by a
qualified specialist as defined herein and conducted in accordance with the requirements described in this code.The applicant
or violator must receive written approval of the mitigation plan by the administrator prior to commencement of any wetland
restoration,creation,or enhancement activity. [Ord. 11-00 § 3.6.10(j)]
Article VI-K.Jefferson County International Airport Essential Public Facility District(AEPF)
18.15.405 Purpose.
The purpose and intent of this Article VI-K is to regulate land uses within the "airport essential public facility" district
(AEPF) in order to encourage orderly economic development in a manner compatible with airport operations and adjacent
properties and to protect existing general aviation public use airports from conflicting or incompatible adjacent land uses or
activities. [Ord. 16-04§ 1;Ord. 11-00 § 3.6.11(a)]
18.15.410 Designation.
The Jefferson County International Airport (JCIA) is a general purpose, public aviation airport that provides recreational,
business, flight training, charter and air taxi services and other uses. The airport essential public facility district designation
(see the official Jefferson County Comprehensive Plan land use designations map)shall apply to the following:
(1) Parcels designated as an airport essential public facility on the official Jefferson County Comprehensive Plan land
use designations map;
(2) Any parcel or parcels(a)subsequently acquired by the Port in accordance with the provisions of the approved JCIA
Master Plan, or (b) currently owned by the Port, which are approved for inclusion in the airport essential public facility
district through the Jefferson County Comprehensive Plan text and land use amendment process, or any other applicable
process. [Ord. 16-04 § 1;Ord. 11-00 § 3.6.11(b)]
18.15.415 Permitted,conditional and prohibited uses.
New development within the AEPF district shall be restricted principally to aviation support facilities and aviation-related
rnanufacturing/light industrial uses that directly or indirectly support its operation as an essential public facility. However,
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I I
certain public and quasi-public nonaviation-related uses may be permitted as specifically set forth in this section.
(1) Permitted Uses.
(a) Aviation support facilities and activities that directly support flight operations and the operation of the
Jefferson County Airport, and include,but arc not limited to:
(i) Pilot and passenger service facilities,including food service;
(ii) Charter services and aircraft rentals;
(iii) Airport-related government offices;
(iv) Navigational aids;
(v) Runway aprons;
(vi) Terminal buildings;
(vii) Hangars;
(viii) Fuel storage facilities;
(ix) Operations/maintenance facilities;
(x) Aviation museum and/or visitor interpretive center;
(xi) Automobile parking;and
(xii) Restaurants;
(b) Aviation-related manufacturing and light industrial uses and activities that comply with FAA guidelines and
which contribute to the operations of the JCIA as an economically self-supporting enterprise. These include but are
not limited to:
(i) Aircraft repair facilities;
(ii) Aircraft remodeling facilities;
(iii) Aircraft sales and related aircraft equipment,services and supplies;
(iv) Aircraft manufacturing;
(v) Airborne freight facilities;
(vi) Air pilot training schools;
(vii) Aviation clubs;
(viii) Taxi and bus terminal;
(ix) Automobile rental and associated parking;
(x) Aviation-related manufacturing authorized and approved by the Federal Aviation Administration;
and
(xi) Aerial recreational activities(e.g.,balloon rides,gliders,etc.);
(c) Public works maintenance/equipment storage shops;
(d) Park and ride lots/transit facilities;
(e) Roads,public or private;
(f) Public trails and paths; and
(g) Port-related government offices.
(2) Conditional, Discretionary and Special Uses (Classified as "C," "C(a)," "C(d)" and "D" as Described in the Notes
Preceding Table 3-1 in JCC 18.15.040):
(a) Large-scale regional transportation facilities(state-owned), (e.g., freeways)(C);
(b) Unnamed essential public facilities(C);
(c) Emergency services(police, fire and EMS)(C);
(d) Utility developments,major(C);
(e) Utility developments,minor(C(a));
(f) Unnamed transportation uses(D);
(g) Unnamed utility uses(D);and
(h) Commercial communication facilities(note: this is a special use under JCC 18.20.130).
(3) Accessory Uses. Other uses accessory or incidental to uses allowed in this section are permitted in the airport
essential public facility district subject to approval by the Federal Aviation Administration. Such uses include, but are not
limited to, caretaker residences.
(4) Prohibited Uses. Uses not specified within this section are prohibited. Additionally, uses or activities that may affect
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Document • • Page 12 of 12
•
flight operations including,but not limited to,the following are prohibited:
(a) Any use that releases airborne substances,such as steam,dust or smoke;
(b) Any use that attracts concentrations of birds,waterfowl or other wildlife;
(c) Uses that are determined to pose a hazard to the safe operation of the airport as an aviation facility. [Ord.
16-04 § 1;Ord. 11-00§3.6.11(c)]
18.15.420 Development standards.
This section provides standards to minimize the conflicts between the Jefferson County International Airport and proposed
future development proximal to the airport proper. The following development standards are established to prevent future
incompatible uses and airspace obstructions in airport overlay districts, approaches and surrounding areas. Land uses and
development shall comply with the standards established in "Federal Aviation Regulations(FAR),Part 77: Objects Affecting
Navigable Airspace." Where the standards contained in this section conflict with FAR, Part 77, the more restrictive shall
apply. All other development standards and review and approval criteria in this code shall also apply. [Ord. 16-04 § 1; Ord.
11-00 § 3.6.11(d)]
18.15.425 Electrical emissions.
Any use or activity that emits electrical currents shall be installed in a manner that does not interfere with communication
systems or navigational equipment. [Ord. 16-04§ 1;Ord. 11-00§ 3.6.11(e)]
18.15.430 Lighting.
New development that creates a glare of lighting that interferes with the lights necessary for aircraft navigation, including
landing and take-off,shall be prohibited. [Ord. 16-04 § 1;Ord. 11-00 § 3.6.11(0]
18.15.435 Height restrictions.
New development or alteration of existing development within the airport's navigable airspace shall be in accordance with
"Federal Aviation Regulations(FAR),Part 77: Objects Affecting Navigable Airspace." [Ord. 16-04 § 1; Ord. 11-00 § 3.6.11
(g)]
18.15.440 Ground transportation facilities.
All uses shall be served by adequate transportation facilities, including appropriate facilities for transit, pedestrians, and
bicycles. Where transportation facilities are not adequate to serve a proposed use, the applicant shall make provision for
necessary improvements. Transportation facilities shall be deemed adequate if necessary improvements are planned and
funded in the Jefferson County Comprehensive Plan six-year transportation improvement program.
Transportation facilities shall meet the design standards of the department of public works and Jefferson Transit. These
standards include, but are not limited to, the American Association of State Highway and Transportation Officials
(AASHTO) "Policy on Geometric Design of Highways and Streets," the Institute of Transportation Engineers "Trip
Generation Manual," and the Washington Department of Transportation "Highway Design Manual" and "Standard
Specifications for Road,Bridge,and Municipal Construction." [Ord. 16-04 § 1;Ord. 11-00 § 3.6.11(h)]
18.15.445 Notice provisions.
Repealed by Ord. 16-04. [Ord. 11-00 § 3.6.11(i)]
18.15.450 Noise provisions.
Repealed by Ord. 16-04. [Ord. 11-00 § 3.6.11(j)]
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WETLAND UNIT
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PROPERTY BOUNDARY —
WETLAND UNIT BOUNDARY
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• CLEAR CUT AREA
Wiltermood
�� ` Associates, Inc.
NM/EQ(6 1015 SW Harper Rd.
Port Orchard, WA 98367
(360) 876-2403
• I
Wetland name or number
WETLAND RATING FORM—WESTERN WASHINGTON
Version 2-Updated July 2006 to increase accuracy and reproducibility among users
Updated Oct 2008 with the new WDFW definitions for priority habitats
Name of wetland(if known): They e Date of site visit:
Rated by 4) ,,, �k e c,Ft- Trained by Ecology? Yesk_No Date of training ((-is o .,
SEC: -t TWNSHP: 290 RNGE: IC Is S/T/R in Appendix D? Yes No X
Map of wetland unit: Figure Estimated size ♦t- ;acre
SUMMARY OF RATING
Category based on FUNCTIONS provided by wetland
I II III K IV
Score for Water Quality Functions /0
Category I= Score>=70
Category II= Score 51-69 Score for Hydrologic Functions /6
Category III = Score 30-50 x( Score for Habitat Functions
Category IV = Score < 30
TO'FAL score for Functions I 44
Category based on SPECIAL CHARACTERISTICS of wetland
I II Does not Apply X
Final Category (choose the "highest" category from above) i 4
Summary of basic information about the wetland unit
�ai�s u�ed fad �;
Estuarine Depressional X
Natural Heritage Wetland Riverine
Bog Lake-fringe
Mature Forest — Slope
Old Growth Forest Flats
Coastal Lagoon Freshwater Tidal
Interdunal
None of the above Check if unit has multiple
HGM classes present
Wetland Rating Form—western Washington 1 August 2004
version 2 To be used with Ecology Publication 04-06-025
• •
Wetland name or number
Classification of Wetland Units in Western Washington
i ''''''':'.- '-'''.--'''-'--'-'-'. ''' '' '' ''':'-'-''""'f-' '''''-'- '''-' . ' ' - -'
1.Are the water levels in the entire unit usually controlled by tides (i.e. except during floods)?
®—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 Saltwater Tidal Fringe it is rated as an Estuarine wetland. Wetlands that
were called 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.The entire wetland unit is flat and precipitation is the only source (>90%) of water to it.
Groundwater and surface water runoff are NOT sources of water to the unit.
(a--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 entire wetland unit meet both of the following criteria?
The vegetated part of the wetland is on the shores of a body of permanent open water
(without any vegetation on the surface) at least 20 acres (8 ha) in size;
At least 30% of the open water area is deeper than 6.6 ft(2 m)?
0—go to 4 YES—The wetland class is Lake-fringe (Lacustrine Fringe)
4. Does the entire wetland unit 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 type of wetlands except occasionally in
very small and shallow depressions or behind hummocks (depressions are usually
<3ft diameter and less than 1 foot deep).
NO - go to 5 YES—The wetland class is Slope
Wetland Rating Form— western Washington 3 August 2004
version 2 Updated with new WDFW detinitions Oct. 2008
i I
Wetland name or number
D D 1.Does the wetland unit have the potential to improve water quality? (seep . $$
D 1.1 Characteristics of surface water flows out of the wetland: Figure
Unit is a depression with no surface water leaving it(no outlet) points
Unit has an intermittently flowing,OR highly constricted permanently flowing outlet points=2
Unit has an unconstricted,or slightly constricted,surface outlet (permanently flowing)points= 1
Unit is a"flat"depression(Q. 7 on key),or in the Flats class,with permanent surface outflow and
no obvious natural outlet and/or outlet is a man-made ditch points= 1
(If ditch is not permanently flowing treat unit as "intermittently flowing") 2
Provide photo or drawing
S 1.2 The soil 2 inches below the surface(or duff layer)is clay or organic (use MRCS
definitions)
D YES point =
NO points=0 C
D 1.3 Characteristics of persistent vegetation(emergent, shrub, and/or forest Cowardin class) Figure
Wetland has persistent,ungrazed,vegetation>=95%of area points=5
D Wetland has persistent, ungrazed,vegetation> = 1/2 of area points=
Wetland has persistent,ungrazed vegetation>= 1/10 of area t.A/5oct •oints=1
Wetland has persistent, ungrazed vegetation<1/10 of area points=0 t.
Map of Cowardin vegetation classes _
D 1.4 Characteristics of seasonal ponding or inundation_ Figure
This is the area of the wetland unit that is ponded for at least 2 months, but dries out
D sometime during the year. Do not count the area that is permanently ponded. Estimate
area as the average condition 5 out of 10 yrs.
Area seasonally ponded is> '/2 total area of wetland •of• =4
Area seasonally ponded is> '/A total area of wetland .oints=2
Area seasonally ponded is< 'A total area of wetland points=0 2
Map of Hydroperiods
D Total for D 1 Add the points in the boxes above I
D D 2. Does the wetland unit 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. A unit may have pollutants coming from several
sources, but any single source would qualify as opportunity.
— Grazing in the wetland or within 150 ft
— Untreated stormwater discharges to wetland
— Tilled fields or orchards within 150 ft of wetland
X A stream or culvert discharges into wetland that drains developed areas,residential areas,
farmed fields,roads,or clear-cut logging
— Residential,urban areas, golf courses are within 150 ft of wetland multiplier
— Wetland is fed by groundwater high in phosphorus or nitrogen
— Other YES multiplier to NO multiplier is 1
D TOTAL - Water Quality Functions Multiply the score from D1 by D2
Add score to table on p. 1 l(�
Wetland Rating Form-western Washington 5 August 2004
version 2 Updated with new WDFW definitions Oct. 2008
• •
•
Wetland name or number
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II 1.Does the wetland unit have the potential to provide habitat for many species?
H 1.1 Vegetation structure(see p. 72) Figure
Check the types of vegetation classes present(as defined by Cowardin)-Size threshold for each
class is '/ acre or more than 10%of the area if unit is smaller than 2.5 acres.
Aquatic bed
Emergent plants
Scrub/shrub(areas where shrubs have>30%cover)
X. Forested(areas where trees have>30%cover) tj$k Ci eaer &LA_ o N5.(e
If the unit has a forested class check if. to -the Ij w 4 � F
A The forested class has 3 out of 5 strata(canopy,sub-canopy, shrubs,herbaceous,
moss/ground-cover)that each cover 20%within the forested polygon
Add the number of vegetation structures that quay. If you have:
4 structures or more points=4
Map of Cowardin vegetation classes 3 structures points=2
2 structures point = 1
1 structure points=0
H 1.2. Hydroperiods(see p. 73) Figure_
Check the types of water regimes (hydroperiods)present within the wetland. The water
regime has to cover more than 10%of the wetland or'/,acre to count. (see text for
descriptions of hydroperiods)
Permanently flooded or inundated 4 or more types present points= 3
1( Seasonally flooded or inundated 3 types present points= 2
Occasionally flooded or inundated 2 types present .sin = I
( Saturated only 1 type present points=0
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 Map of hydroperiods
H I.3. Richness of Plant Species (see p. 75)
Count the number of plant species in the wetland that cover at least 10 ft2. (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 Milfoil, reed canarygrass,purple loosestrife, Canadian T le
If you counted: > 19 species I oints=2
List species below if you want to: 5 - 19 species points= 1
<5 species points= 0
Z
Total for page 4/
Wetland Rating Form -western Washington 13 August 2004
version 2 Updated with new WDFW definitions Oct. 2008
•
dio
Wetland name or number
H 2.Does the wetland unit have the opportunity to provide habitat for many species?
H 2.1 Buffers (seep. 80) Figure
Choose the description that best represents condition of buffer of wetland unit. The highest scoring
criterion that applies to the wetland is to be used in the rating. See text for definition of
"undisturbed."
— 100 m(330ft)of relatively undisturbed vegetated areas, rocky areas,or open water >95%
of circumference. No structures are within the undisturbed part of buffer. (relatively
undisturbed also means no-grazing,no landscaping,no daily human use) Points=5
— 100 m(330 ft) of relatively undisturbed vegetated areas,rocky areas,or open water >
50% circumference. Points=4
— 50 m(170ft) of relatively undisturbed vegetated areas,rocky areas,or open water>95%
circumference. Points=4
— 100 m(330ft) of relatively undisturbed vegetated areas,rocky areas,or open water>25%
circumference, . Points=3
— 50 m(170ft) of relatively undisturbed vegetated areas,rocky areas,or open water f >
50%circumference. oints=3
If buffer does not meet any of the criteria above
— No paved areas(except paved trails)or buildings within 25 m(80ft)of wetland>95%
circumference. Light to moderate grazing,or lawns are OK. Points=2
— No paved areas or buildings within 50m of wetland for>50%circumference.
Light to moderate grazing,or lawns are OK. Points= 2
— Heavy grazing in buffer. Points= 1
— Vegetated buffers are<2m wide(6.6ft)for more than 95%of the 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
Aerial photo showing buffers 3
H 2.2 Corridors and Connections (seep. 81)
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 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) dr go to H 2.2.2
H 2.2.2 Is the wetland part of a relatively undisturbed ane unbroken vegetated corridor
(either riparian or upland) that is at least 50ft 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 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 mi of a large field or pasture(>40 acres)OR
within 1 mi of eater than 20 acres?
YES point NO=0 points
Total for page
Wetland Rating Form—western Washington 15 August 2004
version 2 Updated with new WDFW definitions Oct. 2008
•
•
Wetland name or number
SC 6.0 Interdunal Wetlands (see p. 93)
Is the wetland unit west of the 1889 line (also called the Western Boundary of Upland
Ownership or WBUO)?
YES-go to SC 6.1 NO )(not an interdunal 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-Copalis- 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
once acre or larger?
YES= Category II NO—go to SC 6.2 Cat. II
SC 6.2 Is the unit between 0.1 and 1 acre, or is it in a mosaic of wetlands that is
between 0.1 and 1 acre?
YES= Category III Cat. III
;a �
_b, ii,.- .',ter° .' _ -v-' m .. cs� ` =�`
Wetland Rating Form - western Washington 21 August 2004
version 2 Updated with new WDFW definitions Oct. 2008