HomeMy WebLinkAboutLog117
RECEIVED
NOV 1 7 2005
JHftRSON tOUN1'f OtD
Final
Marrowstone Island Water System
Phase 1 Wetland Delineation
Report
Jefferson County PUD No.1
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November 2005
Parametrix
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Final
Marrowstone Island Water System -
Phase 1 Wetland Delineation Report
Prepared for
Jefferson County PUD No.1
P.o. Box 929
Port Hadlock, WA 98339
Prepared by
T
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Parametrix
411 108th Avenue NE, Suite 1800
Bellevue, W A 98004-5571
425-458-6200
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November 2005 I 553-1820-010.(02/03)
elT A TION
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Parametrix. 2005. Final Marrowstone Island Water System-Phase 1 Wetland
Delineation Report. Prepared by Parametrix, Bellevue, Washington.
November 2005.
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Final Marrowstone Island Water System-Phase I Wetland Delineation Report I
Jefferson County POD No, I
TABLE OF CONTENTS
1. INTRODUCTION........................ .......... ..... ...... ......................................... .......... 1-1
1.1 PROJECT OVERVIEW ........................................................ .................................... 1-1
1.2 STUDY AREA.... ............... .................. ................. ................ ..... .......... ...... ....... ........ 1-1
1.3 PROJECT DESCRIPTION .................................................... .................................... 1-1
1.4 PURPOSE OF THE REPORT ............................................... ....................................1-2
1.5 APPLICABLE LAWS AND REGULATIONS ........................................................1-5
2. METHODS.... ... ... ... .......... ................. .............. ..... ......... ....... ......................... .....2-1
2.1 REVIEW OF EXISTING INFORMATION.............................................................. 2-1
2.2 FIELD INVESTIGATION ..... ............ ............... ........ ...... ........... ................. .............. 2-1
2.2.1 Wetland Identification and Delineation..................... .................................... 2-1
2.2.2 Wetland Classification and Rating ................................................................2-3
2.3 SHORELINES OF THE STATE ........................................... .................................... 2-4
2.4 IMPACT ASSESSMENTS.. .................. ................. ...................... .................... ......... 2-5
3. RESU L TS.......... ...... ........... ...... ............ ......... ................ ....... ...................... ........ 3-1
3.1 SITE CHARACTERISTICS... ..... ...................... .................... ....... ..... ...... .......... ........ 3-1
3.2 WETLANDS ........ ............... ....... .......... ..................... ...... ........................... ..... ..........3-2
3 .2.1 Wetland 1 .... .............. ............ ........ ........ ........ ................. ...... ..... ............ ........3-2
3 .2.2 Wetland 2 ...... ................. .................. ..... ........ ...................... .... ...................... 3-7
3 .2.3 Wetland 9 ......... ...... ........ ....................... ........... ......... .......... ................ .......... 3-7
3 .2.4 Wetland 10 .... ......... ........ ....... ........ .......... ......... ......... ..... ............. ..................3-8
3.3 SHORELINES OF TIlE STATE........................................... ....................................3-8
4. 1M PACT ASSESSM ENT .... ............... ........ ............ ........ ....................... .............. 4-1
4.1 WETLAND AND WETLAND BUFFER IMPACTS ...............................................4-1
4.2 SHORELINE AND SHORELINE JURISDICTION IMPACTS ..............................4-1
5. MITIGATION SEQUENCING ............................................. ................................ 5-1
5.1 MITIGATION SEQUENCING ............................................. ....................................5-1
5.2 AVOIDING AND MINIMIZING IMPACTS ........................................................... 5-1
5.3 COMPENSATORY MITIGATION ...................................... .................................... 5-2
6. REFERENCES... .... ........ ........ ................. .......... ............ ........................ ............. 6-1
APPENDICES
A Wetland Delineation Forms
B Photographs
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November 2005 I 553-1820-010 (02/03)
I Final Marrowstone Island Water System-Phase I Wetland Delineation Report
Jefferson County PUD No. 1
TABLE OF CONTENTS (CONTINUED)
LIST OF FIGURES
1 Marrowstone Island Water System, Phase 1 Vicinity Map.................................... 1-3
2 Wetlands and Shorelines in the Phase 1 Project Vicinity, Marrowstone Island
Water System.......................... ................... .......... ........................ ............... ....... ....3-3
3 Delineated Wetland Boundaries and Buffers, Wetlands 1 and 2, Phase 1,
Marrowstone Island Water System ...... ............................... ................ .......... .... ..... 3- 5
4 Delineated Wetland Boundaries and Buffers, Wetlands 9 and 10, Phase 1,
Marrowstone Island Water System ........................................................................ 3-9
5 Proposed Phase 1 Water Main Alignment and Mystery Bay Shoreline
Jurisdiction, Marrowstone Island Water System .................................................. 3-11
6 Proposed Phase 1 Water Main Alignment and Scow Bay Shoreline
Jurisdiction, Marrowstone Island Water System .................................................. 3-13
7 Proposed Phase 1 Water Main Alignment and Kilisut Shoreline Jurisdiction,
Marrowstone Island Water System ...........................................................~.......... 3-15
LIST OF TABLES
1 Key to Plant Indicator Status Categories ................................................................ 2-2
2 Criteria for Wetland Rating Categories as Specified by Ecology (1993)...............2-3
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November 2005 1553-1820-010(02/03)
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Final Marrowstone Island Water System-Phase 1 Wetland Delineation Report I
Jefferson County PUD No. I
ACRONYMS
ACOE
BMP
County
CWA
Ecology
FAC
FACU
FACW
FWHAs
FWS
HPA
HDD
NWI
OBL
OHWM
PUD No.1
R
S
SMP
T
UDC
UPL
USDA
USGS
WDFW
WSDOT
U.S. Army Corps of Engineers
Best management practices
Jefferson County
Clean Water Act
Washington State Department of Ecology
Facultative
Faculative Upland
Facultative Wetland
Fish and wildlife habitat areas
Fish & Wildlife Service
Hydraulic Project Approval
Horizontal directional drilling
National Wetland Inventory
Obligate
ordinary high water mark
Jefferson County Public Utility District No.1
Range
Sections
Shoreline Master Program
Township
Jefferson County Unified Development Code
Upland
U.S. Department of Agriculture
U.S. Geological Survey
Washington Department ofFish and Wildlife
Washington State Department of Transportation
RECEIVED
NOV 1 7 2~G5
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November 2005 I 553-1820-010 (02/03)
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Final Marrowstone Island Water System-Phase I Wetland Delineation Report I
Jefferson Counly PUD No. 1
1. INTRODUCTION
Jefferson County Public Utility District No. 1 (PUD No.1) is proposing to install a new water
supply system on Marrowstone Island, which will be constructed in phases. Phase 1 includes
the installation of a new water main over the length of the island. This report addresses
potential project impacts to wetlands and lands within shoreline jurisdiction (200 feet of the
ordinary high water mark) associated with Phase 1. No streams are located in the project
vicinity and therefore, streams will not be discussed in this report. Parametrix conducted this
study to comply with the requirements of the Jefferson County (County) critical areas
regulations as identified in the Jefferson County Unified Development Code (UDC), Sections
3.6.9 and 3.6.10, and to assist PUD No.1 in obtaining necessary local, state, and federal
permits required for this project.
This report reviews applicable regulations and laws, describes wetlands in the project vicinity
and jurisdictional shorelines within 200 feet of the proposed Phase 1 construction areas,
evaluates potential project-related impacts, and describes mitigation measures.
1.1 PROJECT OVERVIEW
Phase 1 of the Marrowstone Island water system will include the installation of
approximately 43,400 linear feet of 8-inch-diameter polyvinyl chloride (PVC) pipe primarily
along existing public roads on the island (Figure 1). The water main will be installed in the
existing roadside ditch along State Route (SR) 116 and within the shoulders of county roads.
1.2 STUDY AREA
Marrowstone Island is located between Port Townsend Bay and Admiralty Inlet, to the east of
Indian Island. The legal description of the study area includes Sections (S) 29, 28, 32 and 33,
Township (T) 30N, Range (R) IE and S 4 and 5, T 29N, R 1 W. The wetland delineation
study area is located within the utility right-of-way, approximately 20 feet beyond the edge of
pavement, along SR 116 between Mystery Bay State Park and Scow Bay, the southerly
portion of Schwartz Road, and central portion of Meade Road on Marrowstone Island. In July
2005, Parametrix (2005) performed a wetland reconnaissance survey of all prospective roads
for the water system installation had identified potential wetlands adjacent to the proposed
Phase 1 alignment at these locations.
1.3 PROJECT DESCRIPTION
PUD No.1 plans to install an 8-inch water main along existing public roads on Marrowstone
Island. The Phase 1 water main alignment runs south from the water reservoir at Fort Flagler
State Park, on the north end of the island, to Fort Gate Road; east along Fort Gate Road to SR
116; south on SR 116 to Schwartz Road and East Beach Road; north on Schwartz Road to the
end of the road; east on East Beach Road to East Marrowstone Road; south on East
Marrowstone Road to Meade Road; west on Meade Road to SR 116; from the Meade Road
SR 116 intersection, north on SR 116 to the intersection with Griffith Point Road, and south
from Meade Road on SR 116 to tie in with the existing water service along SR 116 on Indian
Island, approximately 850 feet west of the eastern shoreline of Marrowstone Island. Phase 1
does not include the portion of SR 116 between East Beach Road and Griffiths Point Road,
where the water main will be installed in a subsequent phase of the project.
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November 2005 I 553-1820-010 (02/03)
I Final Marrowstone Island Water System-Phase 1 Wetland Delineation Report
Jefferson County PUD No.1
The Phase I water main will be installed in the bottom of the roadside ditch along SR 116
and within the shoulders of Jefferson County roads, via open trenching, unless noted
otherwise. Open trenching will involve excavation of a trench approximately 50-inches deep
and up to 24-inches wide. During excavation, trench spoils will be placed on top of the
outboard side (away from the road) of the ditch, or within the roadbed when adjacent to
sensitive areas (i.e., wetlands, waters of the state). Once excavated to depth, clean sand will
be placed in the trench bottom for bedding material, the pipe will be laid, and the trench back-
filled with native, excavated material. After backfilling, excavated areas will be compacted
and restored to original grade.
Where sensitive areas are adjacent to the paved road and the shoulder width will not
accommodate open-trenching (Schwartz Road, Scow Bay), horizontal directional drilling
(HDD) will be used for pipe installation. HDD involves inserting a drilling rod with a cutting
tool into an entry hole cIQse to the feature to be drilled under, directing it down under the
feature, and then up again jo a location on the other side. The entry hole behind the drilling
head will be kept open with bentonite mud. A pipe will then be connected to the end of the
drilling rod and pulled through the hole. This method can be used without any additional
excavation by mounting the drill rig on the ground and positioning the entry and exit holes
well clear of the sensitive area. HDD is a construction method that has proven useful for
utility installation with potentially lower impacts to sensitive environmental areas than
traditional open trenching (Cameron et al. 2002; Hair et al. 2002).
Equipment needed for open trench construction will include a backhoe or excavator and
hand-operated power tools. Access to all work areas will be along existing public roads,
except for that portion of the main (approximately 750 linear feet) between Fort Gate Road
and the reservoir in Fort Flagler State Park. South of Fort Flagler State Park, all work areas
are accessible from public roads. Construction staging and stockpile areas will be limited to
existing improved sites (gravel or paved). For HDD, the horizontal drill for installation of the
8-inch-diameter is typically a track-mounted machine comparable in size to a standard-size
pick-up truck.
This project does not include working directly in wetlands or involve in-water work. The
project will have minimal adverse impacts on wetland buffers or natural resources within the
shoreline jurisdiction and no adverse impacts on regulated wetlands or waters of the state.
1.4 PURPOSE OF THE REPORT
Parametrix has prepared this report to: describe wetlands and shoreline areas within 200 feet
of the ordinary high water mark (OHWM) within the Phase I project area; evaluate potential
impacts to critical areas from the water main installation; and present mitigation measures for
these impacts, as requested by the Jefferson County Department of Community Development
in a letter (June 30, 2005) to PUD No. I. This report does not address other critical areas
regulated by Jefferson County such as geologically hazardous areas and critical aquifer
recharge areas. Information presented here is intended to facilitate environmental review and
permitting.
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1-2 November 20051 553-1820-010 (02/03)
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N Phase 1
Water Main
1 Miles
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Figure 1
Marrowstone Island
Water System,
Phase 1 Vicinity Map
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Final Marrowstone Island Water System-Phase I Wetland Delineation Report I
Jefferson County PUD No. I
1.5 APPLICABLE LAWS AND REGULATIONS
Jefferson County regulations require assessment of environmentally sensitive areas for all
development activities that may affect wetlands; fish and wildlife habitat areas (FWHAs),
which include streams and waters of the state; and their associated buffers (Jefferson County
Unified Development Code [UDe] 3.6.4). County regulations also require a habitat
management plan for activities in areas with which critical species listed as endangered or
threatened under state or federal law have a primary association (UDC 3.6.10(i)). Wetlands,
streams, and other sensitive resources in the project vicinity are also subject to federal and
state regulations. At the federal level, wetlands and streams are protected by Section 404 of
the federal Clean Water Act (CW A), which regulates placement offill in waters of the United
States (U.S.). The U.S. Army Corps of Engineers (ACOE) is responsible for implementing
Section 404 of the CW A.
Activities that affect wetlands and streams may also require a water quality certification
(CWA Section 401), which Washington State Department of Ecology (Ecology) implements
at the state level. Ecology reviews projects for compliance with state water quality standards
and makes permitting and mitigation decisions based on the nature and extent of impacts, and
the type and quality of wetlands and streams being affected. Ecology is not requiring a water
quality certification permit for this project.
The marine waters surrounding Marrowstone are classified as a shoreline of the state. Lands
within 200 feet of shorelines of the state are regulated as shorelands and subject to the
provisions of the state Shoreline Management Act and the Jefferson County Shoreline Master
Program (SMP). The SMP requires review and approval of development or activities that
may affect shorelines of the state, associated wetlands, or shore lands. Portions of the Phase I
alignment are within 200 feet of the marine shoreline are therefore subject to the provisions
ofthe Jefferson County SMP.
November 2005 I 553-1820-010 (02/03)
RECEIVED
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Final Marrowstone Island Water System-Phase I Wetland Delineation Report I
Jefferson County PUD No, 1
2. METHODS
This study is based on a review of existing information and field investigations. The goal of
these efforts was to document current site conditions and collect new information to assess
impacts.
2.1 REVIEW OF EXISTING INFORMATION
Prior to conducting fieldwork, Parametrix reviewed maps and materials on the soils,
hydrology, topography, land use, and wetlands in the study area. Existing data sources that
were reviewed for this study included, but were not limited to:
. Shoreline Management Master Program, Eastern Jefferson County Map (Jefferson
County 1997).
. Eastern Jefferson County Wetlands Map (Jefferson County 1995).
. Soil Survey of Jefferson County Area, Washington (McCreary 1975).
. National Wetland Inventory (NWI), Nordland, Washington quadrangle (FWS 1987).
2.2 FIELD INVESTIGATION
Field investigations of the Phase 1 study area occurred on August 17, 18, and 25, 2005.
2.2.1
WETLAND IDENTIFICATION AND DELINEATION
For the purposes of this study, wetlands are defined as areas saturated or inundated by surface
or groundwater at a frequency and duration sufficient to support, and which under normal
circumstances do support, a prevalence of vegetation adapted for life in saturated soil
conditions. The methods used to delineate the on-site wetlands conform to methods in the
1987 Corps of Engineers Wetland Delineation Manual (Environmental Laboratory 1987) and
the Washington State Wetland Identification and Delineation Manual (Ecology 1997). All
delineated wetlands were instrument surveyed and mapped on project base maps provided by
PUD No.1. Field data sheets for wetlands are provided in Appendix A.
To be considered a wetland, an area must have hydrophytic vegetation, hydric soils, and
wetland hydrology. Parametrix collected data on these parameters in areas representative of
typical site conditions. For comparison purposes, additional data plots were established in
adjacent upland areas to document differences in vegetation, soil, and hydrology. Data plots
were labeled with blue and white striped flagging.
The wetland boundaries within approximately 20 feet of the edge of the pavement were
delineated with sequentially numbered, bright pink flagging. Only those portions of wetlands
within the utility right-of-way were delineated. Wetlands were numbered in the order in
which they were encountered in the field, and numbering does not reflect geographic
location. Additional wetlands adjacent to SR 116 but outside of the Phase 1 project area (i.e.,
SR 116 between East Beach Road and Griffiths Point Road) were also delineated during the
field investigations.
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November 2005 I 553-1820-010 (02/03)
2-1
I Final Marrowstone Island Water System-Phase I Wetland Delineation Report
Jefferson County PUD No. 1
2.2.1.1 VEGETATION
The dominant plants and their wetland indicator status were evaluated to determine if the
vegetation was hydrophytic. Hydrophytic vegetation is generally defined as vegetation
adapted to wetland conditions. To meet the hydrophytic vegetation criterion, more than 50
percent of the dominant plants must be Facultative (FA C), Facultative Wetland (FACW), or
Obligate (OBL), based on the plant indicator status category assigned to each plant species by
FWS (Reed 1988, 1993). Table 1 lists the definitions of the indicator status categories.
Table 1. Key to Plant Indicator Status Categories
Plant Indicator
Status Category
Obligate Wetland Plants
Symbol
OBL
Definition
Plants that almost always (> 99% of the time) occur in
wetlands, but which may rarely (< 1 % of the time) occur in
non-wetlands.
Plants that often (67 to 99% of the time) occurs in wetlands,
but sometimes (1 to 33% of the time) occur in non-wetlands.
.......... ............. ..................................................................
Plants with a similar likelihood (33 to 66% ofthe time) of
occurring in both wetlands and non-wetlands.
.............................._......................................................... ......................................... ................................................ m............_ .............................._........
Plants that sometimes (1 to 33% of the time) occur in
wetlands, but occur more often (67 to 99% of the time) in
non-wetlands.
Facultative Wetland Plants
FACW
Facultative Plants
FAC
Facultative Upland Plants
FACU
Upland Plants
UPL
Plants that rarely (< 1% of the time) occur in wetlands and
almost always (> 99% of the time) occur in non-wetlands.
Source: Environmental Laboratory (1987).
Scientific and common plant names follow currently accepted nomenclature. Most names are
consistent with Flora of the Pacific Northwest (Hitchcock and Cronquist 1973) and the
PLANTS Database (USDA NRCS 2004). During the field investigation, dominant plant
species were observed and recorded on data sheets for each data plot (Appendix A).
2.2.1.2 SOILS
Generally, an area must have hydric soils to be a wetland. Hydric soil forms when soils are
saturated, flooded, or ponded long enough during the growing season to develop anaerobic
conditions in the upper part. Biological activities in saturated soil result in reduced oxygen
concentrations and organisms turn to anaerobic processes for metabolism. Over time,
anaerobic biological processes result in certain soil color patterns, which are used as
indicators of hydric soil. Typically, low-chroma colors and bright-colored redoximorphic
features are formed in the soil matrix. Other important hydric soil indicators include organic
matter accumulations in the surface horizon, sulfuric odors, and organic matter staining in the
subsurface. Soils were examined by excavating sample pits to a depth of 18 inches or more to
observe soil profiles, colors, and textures. Munsell color charts (Grey tag Macbeth 2000) were
used to describe soil colors.
2.2.1.3 HYDROLOGY
The study area was examined for evidence of hydrology. An area is considered to have
wetland hydrology when soils are ponded or saturated for at least 5 percent (in some cases
12.5 percent) of the growing season. In east Jefferson County coastal areas (Port Townsend
area) the growing season generally lasts from mid-March (March 12) to mid-November
(November 25) (McCreary 1975), so p,o~i~ <?r"s~l.jf~tion must be present for approximately
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2.2 -.}.t1r",~ No,=b" 20051 553.1820.010 (02/03)
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Final Marrowstone Island Water System-Phase 1 Wetland Delineation Report I
Jefferson County PUD No.1
13 days. Primary indicators of hydrology include surface inundation and saturated soils.
Secondary indicators of hydrology include drainage patterns, watermarks on vegetation,
water-stained leaves, and oxidized root channels.
Federal and state regulatory agencies typically exclude from jurisdiction artificial wetlands
that were created from non-wetland sites (Ecology 1997; Environmental Laboratory 1987).
This interpretation may also apply to wetland-vegetated drainage ditches excavated in non-
hydric soils, based on the determination of jurisdictional ditches and Talent Decision
guidance from the Washington State Department of Transportation (WSDOT 2002). The
Talent Decision refers to a ruling by the U.S. Ninth Circuit Court of Appeals (Ninth Circuit)
in an appeal of a lawsuit ~gainst the Talent Irrigation District of Jackson County, Oregon.
The Ninth Circuit ruled that the irrigation canals were waters of the U.S. that were subject to
CW A permit requirements. The recent Talent Decision, as interpreted by the ACOE, gives
the ACOE jurisdiction over any water body that is hydrologically connected to a water of the
U.S., including ditches. The ACOE regulatory authority over waters of the U.S. comes from
the CW A. Therefore, through the CW A permitting process, the ACOE requests supplemental
documentation on all ditches that have any hydrologic connection to waters of the U.S.
For this project, wetland-vegetated ditches that were bordered by upland soils and that did not
have a surface water connection to other wetlands or streams were not delineated. However,
if a ditch with wetland vegetation appeared to function as a natural stream channel, or was
dug in hydric soil and supported wetland hydrology, it was delineated as wetland. For
example, if a wetland-vegetated ditch appeared to capture and convey surface water or
seepage that normally would have collected in a natural channel, it was delineated as a
wetland or stream/wetland complex. If a wetland-vegetated ditch did not appear to convey
such waters, it was assumed to function primarily as a stormwater conveyance feature and
was not delineated.
2.2.2
WETLAND CLASSIFICATION AND RATING
Delineated wetlands were classified according to the U.S. Fish and Wildlife Service (FWS)'s
Classification of Wetlands and Deepwater Habitats of the United States (Cowardin et al.
1979) and rated using the Washington State Wetland Rating System, 2nd Edition (Ecology
1993) (Appendix B), per UDC regulation (3.6.9.a.(1)). Table 2 summarizes the rating criteria
for each wetland category. For wetland ratings, the estimated extent of the wetland and
adjoining habitat was considered using aerial photographs and existing wetland maps. Buffer
widths assigned to wetlands in the study area (Section 3.2) reflect requirements for Jefferson
County (UDC 3.6.9.b.(5)).
Table 2. Criteria for Wetland Rating Categories as Specified by Ecology (1993)
Category 1
Category I
Ecology
(a) Have documented occurrence of federal or state listed endangered or
threatened animal, plant, or fish species; or
(b) Consist of high quality native wetland communities which qualify for inclusion
in the State Natural Heritage Information System; or
(c) Are documented as regionally significant waterfowl or shorebird
concentration areas; or
(d) Have irreplaceable ecological attributes; or
(e) Are documented wetlands of local significance.
November 2005 I 553-1820-010 (02/03)
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I Final Marrowstone Island Water System-Phase I Wetland Delineation Report
Jefferson County PUD No. I
I
Table 2. Criteria for Wetland Rating Categories as Specified by Ecology (1993)
(continued)
I
Category 1
Category II
Category /II
Category IV
Ecology
(a) Satisfy no Category I criteria; and
(b) Have documented occurrence of federal or state listed sensitive animal,
plant, or fish species; or
(c) Contain priority species or habitats recognized by state agencies; or
(d) Are wetlands with significant functions which may not be adequately
replicated through creation or restoration; or
(e) Are wetlands with significant habitat value of 22 or more points on the Field
Data Form; or
(f) Are documented wetlands of local significance.
(a) Are wetlands with significant habitat value of 21 points or less on the Field
Data Form; or
(b) Are documented wetlands of local significance.
(a) Are wetlands less than 1 acre, and hydrologically isolated and, comprised of
one vegetated class that is dominated (>80 percent areal cover) by one
species considered alien and or invasive; or
(b) Are wetlands less than 2 acres, and hydrologically isolated with one
vegetated class, and greater than 90% of areal cover is any combination of
species considered alien or invasive; or
(c) Are wetlands that are ponds excavated from uplands, and are smaller than 1
acre without surface water connection to streams, lakes, rivers, or other
wetlands throughout the year; and that have less than 1/10 acre of
vegetation.
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Category I and II Wetlands less than 10,000 square feet and Category III and IV Wetlands less than 2,500 square feet in size are
not regulated by Jefferson County per UDC 3.6.9.a.(2).
I
2.3 SHORELINES OF THE STATE
The OHWM for shorelines of the state was identified and flagged as defined by WAC 173-
22-030 and following Ecology (2004) protocol. For low energy environments, this is clarified
as the landward limit of salt tolerant vegetation. The OHWM was flagged as the landward
wetland boundary line in the field, which was surveyed by a professional land surveyor. For
this study, except for the field delineated OHWM along the southeastern shore of Mystery
Bay and the SR 116 causeway at Scow and Oakland Bays, the existing high tide line provided
in the pun base data was used to calculate the 200-foot shoreline jurisdiction.
The Jefferson County SMP (SMP 4.10) has established 5 primary shoreline designations:
Aquatic, Natural, Conservancy, Suburban, and Urban. The amount of development allowed
varies between the shoreline designations and performance standards for each of the
designations are included in the SMP to protect environmentally sensitive areas and
resources. The County has mapped (1997) the shoreline designations for all of its regulated
shore lands.
2-4
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November 20051 553-1820-010 (02/03)
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Final Marrowstone Island Water System-Phase I Wetland Delineation Report I
Jefferson County PUD No. 1
2AIMPACTASSESSMENTS
Potential project impacts to wetlands, FWHAs, their associated buffers, and shore lands were
assessed by overlaying the surveyed delineation boundaries onto project base maps and then
calculating the appropriate buffer locations. Impact areas were determined as the area of
intersection between the delineated boundaries, calculated buffers, and the proposed water
main alignment on the base maps. Where wetlands and the proposed water main alignment
intersected, the alignment or construction methods were modified to avoid direct wetland
impacts. This assessment also considered loss of buffer functions (based on the existing
conditions and amount of clearing within the buffer as a result of the project) and other
indirect impacts to wetlands and shoreline areas.
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November 2005 I 553-1820-010 (02/03)
2-5
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Final Marrowstone Island Water System-Phase 1 Wetland Delineation Report I
Jefferson County PUD No.1
3. RESULTS
The following sections describe critical areas in the study area. This includes an overview of
general site characteristics and descriptions of individual wetlands based on a review of
existing literature and a site visit.
3.1 SITE CHARACTERISTICS
Marrowstone Island is a mixed residential and agricultural area. There are two state parks
and one county park on the island. Fort Flagler State Park is located at the north end of the
island, Mystery Bay State Park is located on the northern shore of Mystery Bay, and East
Beach County Park is found on the central, eastern shore of the island. The highest point on
Marrowstone Island is towards the southern end, reaching a maximum elevation of
approximately 194 feet.
The predominant mapped soil series on Marrowstone Island is Whidbey gravelly sandy loam,
a non-hydric soil. Other common series include Cassalary sandy loam, Clallam gravelly
sandy loam, Dabob very gravelly sandy loam, Hoodsport very gravelly sandy loam, and
Tukey gravelly loam, which are also non-hydric. Mapped hydric soils on Marrowstone Island
include Semiahmoo muck on Griffiths Point and scattered sites in central and east
Marrowstone; and a single polygon of Mukilteo muck in the north-central island. Except for
the causeway area between Marrowstone and Indian Islands, all of the mapped soils in the
Phase 1 project area are non-hydric, predominantly Whidbey gravelly sandy loam (McCreary
1975).
The Nordland quadrangle NWI map (FWS 1987) shows estuarine subtidal and intertidal
wetlands along all of the marine shoreline of Marrowstone Island, and scattered palustrine
emergent and scrub-shrub wetlands throughout the island, but especially on the east side of
the island. The only palustrine wetland depicted on the NWI map in the Phase 1 project area
is an emergent, seasonally flooded wetland immediately to the northeast of the SR 116 and
East Beach Road intersection (FWS 1987).
County critical, areas maps show a number of wetlands on the island, including most of the
marine shoreline, and 13 water features (six Type 5 Waters and seven Type 9 Waters)
(Jefferson County 1995,2001). In the Phase 1 project area, the County wetland map shows a
freshwater wetland to the north and south of the SR 116 and East Beach Road intersection
and the County stream map shows one Type 5 Water in the project area, directly north of the
entrance to Mystery Bay State Park (Jefferson County 1995, 2001). During the field
investigation for this study, there was no evidence of water or an intact channel in the vicinity
of this mapped drainage feature. Excavation for ponds near the headwaters for this drainage
feature appears to have diverted the water supply to lower reaches (J. Parker personal
communication).
The County SMP map for Eastern Jefferson County shows the Marrowstone Island shoreline
in the Phase 1 project area is designated as Conservancy and the shoreline zone adjacent to
the SR 116 causeway is designated as Natural (Jefferson County 1997).
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November2005 I 553-1820-010(02/03)
3-1
I Final Marrowstone Island Water System-Phase J Wetland Delineation Report
Jefferson County PUD No, 1
3.2 WETLANDS
During the wetlands reconnaissance survey (Parametrix 2005), four wetlands (Wetlands 1,2,
9, and 10) were identified within the Phase 1 project area and delineated for this study
(Figure 2). Wetlands 1,2, and 10 extend beyond the utility right-of-way and the portions of
these wetlands on private property were not delineated. The full extent of Wetland 9 was
delineated. Wetland ecologists used vegetation, soils, and hydrology indicators to delineate
the wetlands.
The emergent, seasonally flooded wetland shown to the northeast of the SR 116 and East
Beach Road intersection on the NWI map (FWS 1987) has been converted to pasture and
there was no evidence of a wetland at this location during the Phase 1 wetland delineation.
Two potential wetlands identified during the wetlands reconnaissance (one at the intersection
of SR 116 and the entrance to Mystery Bay State Park and one at the intersection of SR 116
and Griffith Point Road, identified as potential wetland locations MIWD05 and MIWD02
respectively, in the wetland reconnaissance survey [Parametrix 2005]) were determined not to
be wetlands during the Phase 1 wetland delineations. At both of these locations, the
vegetation was dominated by upland species and there was no evidence of wetland
hydrology. The Mystery Bay State Park location is in the general vicinity of the County
mapped Type 5 Water that is no longer extant (see Section 3.1 above).
3.2.1 WETLAND 1
FWS Classification: Palustrine Forested
HGM Classification: Depressional
Jefferson County Rating: Category III
Wetland 1 is a palustrine forested wetland (Cowardin et al. 1979). Pacific willow (Salix
lucida), water parsley (Oenanthe sarmentosa), and duckweed (Lemna minor) dominate the
wetland which is located to the east of Schwartz Road (Figure 3). Wetland 1 extended to the
east on fenced, private property beyond the survey area and only that portion to the west of
the fence was delineated. The delineated portion of Wetland 1, which roughly parallels
Schwartz Road, is 215 feet long. The road shoulder between Schwartz Road and Wetland 1
varies between approximately 3 feet and 6 feet in width for most of the length of Wetland 1
(Appendix B). Schwartz Road bisects Wetlands 1 and 2, which appear likely to have been
part of the same depressional wetland prior to road construction.
The soil survey of Jefferson County mapped this area as Whidbey gravelly sandy loam
(McCreary 1975). The A horizon was a black (10 YR 2/1) loamy muck that did not contain
any mottles, extending from the surface to a depth below 19 inches. Soils were saturated to
the surface, free water was observed in the soil pit at approximately 6-inches depth, and dried
duckweed was seen as high as 10 inches above ground on shrubs and trees.
The Wetland 1 buffers include deciduous forest to the north and east, Schwartz Road to the
west, and a mowed area to the south.
Wetland 1 is rated as a Category III wetland because it is estimated to be approximately one
acre in size, has high plant species diversity, low structural diversity and interspersion, a low
number of habitat features, and relatively intact buffers. The UDC 3.6.9.d.(5)specifies a
50-foot buffer for Category III Wetlands greater than 10,000 square feet in area, such as
Wetland 1.
3-2
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Final Marrowstone Island Water System-Phase I Wetland D,elineatiOn Report I
Jefferson County PUD No.1
3.2.2 WETLAND 2
FWS Classification: Palustrine Forested
HGM Classification: Depressional
Jefferson County Rating: Category III
Wetland 2 is a palustrine forested wetland (Cowardin et al. 1979) located to the west of
Schwartz Road. The vegetation is predominately Douglas spirea (Spiraea douglasii). Only a
portion of the wetland was delineated due to it being, at least in part, located within fenced
private property.
The soil survey of Jefferson County mapped this area as Whidbey gravelly sandy loam
(McCreary 1975). The A horizon was a black (10YR 2/1) loam to a depth of 16 inches. The
B horizon, below 16 inches depth, was a very dark brown (7.5YR 2.5/2) sandy loam. No
mottles were found in either horizon. Wetland hydrology was not observed at Wetland 2
during the August, 2005 site visit. However, hydrology is assumed to be seasonal and a
secondary indicator of wetland hydrology (water-stained leaves) was observed.
The Wetland 2 buffers include mixed coniferous-deciduous forest to the north, south, and
west and Schwartz Road to the east.
Wetland 2 is rated as a Category III wetland because it is estimated to be greater than 0.25
acre but less than one acre in size, is composed of two wetland classes, has moderate plant
species and structural diversity, low interspersion, a low number of habitat features, and
relatively intact buffers. As a regulated Category Wetland III, the buffer for Wetland 2
required by the UDC is 50 feet (UDC 3.6.9.d.(5)).
3.2.3 WETLAND 9
FWS Classification: Palustrine Scrub-Shrub
HGM Classification: Depressional
Jefferson County Rating: Category III, not regulated!
Wetland 9 is a palustrine scrub-shrub wetland (178 square feet in area) located at the top of a
hill on the south side of Meade Road (Figure 4). The full extent of Wetland 9 was delineated
as this wetland paralleled Meade Road and did not extend more than approximately 20 feet
beyond the edge of the pavement. Meade Road bisects Wetlands 9 and 10, which appear
likely to have been part of the same depressional wetland prior to road construction.
The soil survey of Jefferson County mapped this area as Whidbey gravelly sandy loam
(McCreary 1975). The A horizon, to a depth of 4 inches below the surface, was a dark
grayish brown (10YR 4/2) gravelly sandy loam. The B horizon, 4 to 10 inches depth, was a
grayish brown (10YR 5/2) gravelly sandy loam, with common, coarse yellowish red (5YR
5/8) mottles. The C horizon extends below 10 inches and is a dark grayish brown (10YR 4/2)
gravelly sandy loam, with common, coarse red (2.5 YR 4/6) mottles. Primary and secondary
indicators of wetland hydrology were not observed at Wetland 9 during the August site visit.
However, wetland hydrology is assumed to be seasonal and the property owner stated that
Wetland 9 is inundated during the winter.
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I Category III and IV Wetlands less than 2,500 square feet in size are not regulated by Jefferson
County per UDC 3.6.9.a.(2)
November 2005 I 553-1820-010 (02/03)
3-7
I Final Marrowstone Island Water System-Phase 1 Wetland Delineation Report
Jefferson County PUD No.1
Douglas spirea and non-native rose (Rosa spp.) dominate the wetland which lies to the south
of Meade Road. The Wetland 9 buffers include a narrow stand of deciduous trees to the south
and west, upland shrubs and a driveway to the east, and Meade Road to the north.
Wetland 9 is rated as a Category III wetland because it is less than 0.25 acre in size, is
composed of a single wetland class, has low plant species and structural diversity, a low
number of habitat features and interspersion, and degraded buffers. At less than 2,500 square
feet, Wetland 9 (Category III) is not regulated by the County and as such, there is no buffer
required.
3.2.4 WETLAND 10
FWS Classification: Palustrine Scrub-Shrub
HGM Classification: Depressional
Jefferson County Rating: Category III, not regulated
Wetland 10 is a palustrine scrub-shrub wetland (Cowardin et al. 1979), estimated to be
approximately 1,800 square feet in size, which lies to the north of Meade Road at the top of a
hill (see Figure 4). The southerly edge of Wetland 10 parallels Meade Road with portions of
the wetland located less than 3 feet from the edge of the pavement (Appendix B).
The soil survey of Jefferson County mapped this area as Whidbey gravelly sandy loam
(McCreary 1975). The A horizon was a black (7.5YR 2.5/1) clay loam extending down to a
depth of 11 inches, with a few, medium, prominent red (2.5YR 4/8)mottles. The B horizon,
below 11 inches, was a brown (7.5YR 4/2) gravelly loam, with dark brown (7.5YR 3/4)
mottles. Primary and secondary indicators of wetland hydrology were not observed at
Wetland 10 during the August, 2005 site visit. However, wetland hydrology is assumed to be
seasonal and the property owner stated that Wetland 10 is inundated with up to 18 inches of
standing water during the winter.
Douglas spirea dominates this small wetland. Wetland 10 extends beyond the survey area to
the north, on to fenced, private property, and therefore, only the portion of Wetland 10 within
the utility right-of-way was delineated. The Wetland 10 buffers include a small stand of
deciduous trees (approximately 50 feet x 200 feet) to the north, east, and west, which in turn,
is surrounded by agricultural fields and residential landscaping; and Meade Road to the south.
Wetland 10 is rated as a Category III wetland because it is less than 0.25 acre in size, is
composed of a single wetland class, has low plant species and structural diversity, a low
number of habitat features and interspersion, and degraded buffers. This wetland is estimated
to be less than 2,500 square feet in size, which is not regulated by the County and as such,
there is no buffer required. '
3.3 SHORELINES OF THE STATE
During the field investigation, the marine OHWM abutting SR 116 was flagged and surveyed
along the southeastern shore of Mystery Bay (Figure 5) and Scow and Oak Bays (Figure 6).
At the southern end of the Phase 1 project area, the water main alignment runs on the north
side of the SR 116 causeway connecting Marrowstone and Indian Islands. Parametrix
delineated 430 feet of OHWM on Scow Bay, north of SR 116, and 420 feet of OHWM on
Oak Bay, south of SR 116, paralleling the highway. Approximately 7,625 linear feet of the
project area lie within the shoreline jurisdiction along Scow, Oak, and Mystery Bays and
Kilisut Harbor, of which approximately 4,835 linear feet are within the proposed Phase 1
project area (Figure 7; see Figure 2).
3-8
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November 20051 553-1820-010 (02/03)
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Final Marrowstone Island Water System-Phase I Wetland Delineation Report I
Jefferson County PUD No. I
4. IMPACT ASSESSMENT
4.1 WETLAND AND WETLAND BUFFER IMPACTS
Current design information indicates that the proposed water main installation will not
include direct impacts (i.e., clearing, filling, or excavation) to any of the regulated wetlands in
the Phase 1 project area. There will be no discharge of materials or untreated storm water in to
wetlands or waters of the state during construction or alterations to wetland hydrology as a
result of project installation.
HDD will be used for main installation in all sensitive areas where there is insufficient road
shoulder width to avoid sensitive area impacts. According to current design, the main will be
installed, via HDD, beneath Wetland 2 and along SR 116 at Scow Bay between Marrowstone
and Indian Islands. At Wetland 2, the water main will be installed with HDD beneath the
west shoulder of Schwartz Road and Wetland 2. Entry and exit holes for the bore will be
located outside of Wetland 2 and the 50-foot wetland buffer. At Wetland 10, the main will be
installed in an open trench within the roadbed and maintained shoulder on the north side of
Meade Road.
With HDD there is some risk of frac-out, the inadvertent release to the surface of drilling
fluids as a result of excessive pressure in the bore hole (Cameron et al. 2002, Heffron 2004).
Drilling fluids typically contain clays that may alter water quality or local wetland elevation
(fill) if released into the wetland during a frac-out. The risk of frac-out can be reduced by
selecting appropriate drilling substrate, based on pre-drilling geotechnical studies; closely
monitoring drill bit pressures and the surface while drilling; and having a plan and equipment
onsite for containing a frac-out should it occur (Heffron 2004; Fisheries and Oceans Canada
2005).
Wetland buffer impacts from the Phase 1 main installation will be limited to those areas that
are currently regularly maintained (mowed) by County road crews. The project will not result
in the clearing of additional buffer vegetation beyond the maintained shoulder or ditch.
4.2 SHORELINE AND SHORELINE JURISDICTION IMPACTS
Approximately 4,835 linear feet of the proposed Phase 1 water main alignment are located
within the shoreline zones of Mystery Bay and Scow Bay/Oakland Bay. Phase 1 construction
will not include any in-water work or direct impacts to shorelines of the state on Marrowstone
or Indian Islands. Direct impacts to shorelands vegetation (within 200-feet of the OHWM)
will be confined to the currently maintained roadside shoulders and ditches. No additional
vegetation clearing for Phase 1 construction is anticipated. Installation and operation of the
Phase 1 water main will not degrade shoreline water quality or marine life, contribute to
beach erosion or siltation, or alter shoreline geohydraulic shore processes.
At the south end of the island along the SR 116 causeway connecting Marrowstone and
Indian Islands, the main will be placed via HDD. Along the proposed Phase 1 main alignment
(north side of SR 116), Parametrix delineated 431 feet of the Scow Bay OHWM. HDD along
the causeway will include the full OHWM extent at a sufficient depth and distance to ensure
that the water main placement, entry and exit holes, and HDD equipment staging areas do not
adversely impact the marine shoreline, shoreline resources, or waters of the state. With HDD,
frac-out is an indirect impact that, should it occur, could adversely impact marine shoreline
resources in the immediate vicinity. Mitigation measures to minimize the risk of frac-out are
discussed in Section 5.2, below.
November 2005 I 553-1820-010 (02/03)
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Final Marrowstone Island Water System-Phase 1 Wetland Delineation Report I
Jefferson County PUD No, 1
5. MITIGATION SEQUENCING
The following mitigation measures will avoid or ameliorate potential project impacts to
wetlands, shorelines, and their buffers pursuant to UDC 3.6.9.f(1), Mitigation.
5.1 MITIGATION SEQUENCING
Jefferson County, Washington state, and federal regulatory agencies require that mitigation
efforts follow this prescribed sequence:
. Avoid impacts altogether by not taking a certain action or parts of an action;
. Minimize impacts by limiting the degree or magnitude of the action and its
implementation by using appropriate technology, or by taking affirmative steps to
avoid or reduce impacts;
. Rectify the impact by repairing, rehabilitating, or restoring the affected environment;
. Reduce or eliminating the impact over time by preserving or maintaining operations
during the life of the action;
. Compensate for the impact by replacing, enhancing, or providing substitute
resources or environments; and
. Monitor the impact and the compensation projects and take appropriate corrective
measures.
5.2 AVOIDING AND MINIMIZING IMPACTS
The project is designed to avoid and minimize impacts to wetlands and jurisdictional
shorelines and their buffers where feasible. The project will avoid work in wetlands
altogether. To minimize the risk of inadvertent impacts, sensitive environmental areas will be
clearly marked by a biologist in the field for signing and fencing during construction.
Sediment fences will be placed in areas where runoff may impact wetlands and waters of the
state.
Construction activities will adhere to a site-specific Spill Prevention, Control, and
Countermeasure Plan, including toxin containment, off-site fueling, and equipment cleaning.
Construction will also adhere to an Erosion and Sedimentation Control Plan to be prepared
for the project that will include best management practices (BMPs) for soil stabilization,
control of runoff, and replanting (Ecology 2001). These BMPs address clearing, grading, and
stormwater management and for this project include, but are not limited to the following:
. Erosion of disturbed areas will be controlled using silt dams, catchments, or erosion
control netting, mulch and hydroseeding, and where appropriate (road shoulders),
replanting disturbed areas as soon as possible to establish cover vegetation.
Disturbed areas will be restored to pre-construction grade
. Erosion control devices will be inspected, maintained, and repaired as needed. All
on-site erosion control devices shall be inspected at least once every seven days and
within 24 hours after any storm event greater than 0.5 inches of rain per 24 hour
, period.
.
If soil erosion and sedimentation resulting from construction activities is not
effectively controlled, the engineer will limit the amount of disturbed area to that
which can be adequately controlled.
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November 2005 I 553-1820-010 (02/03)
5-1
I Final Marrowstone Island Water System-Phase I Wetland Delineation Report
Jefferson County PUD No. I
. All pollutants other than sediment that occur on-site during construction shall be
handled and disposed of in a manner that does not cause contamination of
stormwater.
. Any designated wetland and shoreline area will be clearly signed and protected with
silt fencing.
. Spill control and emergency response plans will be implemented for fueling and
concrete activity areas.
The SMP performance standards for utilities (5.200.2) recommend that where feasible,
utilities should be installed underground. Installation of the Phase 1 water main via HDD
would comply with the SMP performance standards for underground installation of utilities.
At HDD sites, the risk and extent of frac-out can be minimized by implementing the
following recommended measures (Heffron 2004; Fisheries and Oceans Canada 2005):
. Conduct geotechnical studies to determine appropriate drilling substrates and depths
prior to construction.
. During drilling, monitor entry hole, exit hole and drill bit pressures and the surface of
the drill route for evidence of frac-out.
. Develop a frac-out containment plan and have trained personnel, necessary
equipment, and materials onsite while drilling.
5.3 COMPENSATORY MITIGATION
Since the Phase I project will have no direct adverse impacts to wetlands or shorelines of the
state, no compensatory mitigation is required.
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November 20051 553-1820.010 (02/03)
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Final Marrowstone Island Water System-Phase 1 Wetland Delineation Report I
Jefferson County PUD No. 1
6. REFERENCES
Cameron, D.J., C.E. Tammi, E. Steel, and J.A. Schmidt. 2002. Evaluating the effects of muds
on wetlands from horizontal directional drilling (HDD) within natural gas transmission
line rights-of-way. In: J.W. Goodrich-Mahoney, D.F. Mutrie, C.A. Guild (eds.).
Environmental concerns in rights-of-way management: Seventh international symposium.
Elsevier Science Ltd., Toronto, Ontario, Canada.
Cowardin, L.M., V. Carter, F.C. Golet, and E.T. LaRoe. 1979. Classification of wetlands and
deepwater habitats of the United States. Government Printing Office, Washington, D.C.
McCreary, F.R. 1975. Soil survey ofJefferson County area, Washington. United States Soil
Conservation Service. Government Printing Office, Washington, D.C.
Ecology (Washington State Department of Ecology). 1993. Washington State wetlands rating
system, second edition. Publication Number 93-74, Olympia..
Ecology (Washington State Department of Ecology). 1997. Washington State wetlands
identification and delineation manual. Publication Number 96-94, Olympia.
Ecology (Washington State Department of Ecology). 2001. Stormwater management manual
for Western Washington, Volume V, Runoff Treatment BMPs. Publication No. 99-15,
Water Quality Program, Olympia.
Ecology (Washington State Department of Ecology). 2004. How to determine the ordinary
high water mark. Training manual, Coastal Training Program, Washington. Olympia.
Environmental Laboratory. 1987. Corps of Engineers wetland delineation manual. Technical
Report Y-87-1, Environmental Laboratory, Department of the Army, Waterways
Experiment Station, Vicksburg, Mississippi.
Fisheries and Oceans Canada 2005. Ontario Operational Statement Habitat Management
Program: High-pressure directional drilling. Available online at the Municipal Engineers
Association website:
http://www.municipalengineers.on.ca/newsinfo/db2file.asp?fileid= 11944. Accessed
October 14,2005.
FWS (U.S. Fish and Wildlife Service). 1987. National wetland inventory. Nordland,
Washington quadrangle. Portland, Oregon.
Grey tag Macbeth Corporation. 2000. Munsell soil color charts. New Windsor, New York.
Hair, J., D. Cameron, C. Tammi, E. Steel, J. Schmidt and J. Evans. 2002. A comparative
assessment of horizontal directional drilling and traditional construction techniques for
wetland and riparian area crossings in natural gas pipeline rights-of-way. In: J.W.
Goodrich-Mahoney, D.F. Mutrie, C.A. Guild (eds.). Environmental concerns in rights-of-
way management: Seventh international symposium. Elsevier Science Ltd., Toronto,
Ontario, Canada.
November 2005 I 553-1820-010 (02/03)
I ")(~'
~C ;;.l
# ( ("1 _.....
,-~,_..""-,-~-.+--" &~
~''1'-''j <:.\ "7 C1 (;~. :':::.l
r't..'-j~,~'f-~"'~_._...,~,~j",,,,,~c,J,,-~ >>>" "'-" " -' ',' ---~
6-1
...LC1...--- ~>..;--
,1,0,. ,.,Qi.::?
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I Final Marrowstone Island Water System-Phase I Wetland Delineation Report
Jefferson County PUD No.1
Heffron, M. 2004. Challenges associated with horizontal directional drilling and piping
installation under a major highway for the remediation of a petroleum plume. Tetra Tech
FW, Inc., Langhorne, Pennsylvania. Available online at:
http://www.ttecLcom/Heffron2004.pdf. Accessed October 14,2005.
Hitchcock, C.L. and A. Cronquist. 1973. Flora of the Pacific Northwest. University of
Washington Press, Seattle, Washington.
Jefferson County. 1995. Eastern Jefferson County wetlands map. Port Townsend,
Washington.
Jefferson County. 1997. Shoreline Management Master Program, Eastern Jefferson County
map. Port Townsend, Washington.
Jefferson County (Jefferson County Integrated Data Management System). 2001. Rivers,
streams, and shorelines, Eastern Jefferson County Washington (map). Port Townsend,
Washington.
McCreary, F.R. 1975. Soil Survey of Jefferson County Area, Washington. U.S. Soil
Conservation Service. Government Printing Office, Washington D.C.
Parametrix. 2005. Results of Marrowstone Island wetland reconnaissance survey, technical
memorandum. Prepared for Jefferson County PUD No. 1. Bellevue, Washington.
Reed, P.B., Jr. 1988. National list of plant species that occur in wetlands: Northwest (Region
9). U.S. Department ofInterior, Fish and Wildlife Service, Washington, D.C.
Reed, P.B., Jr. 1993. 1993 Northwest Region 9 supplement to the national list of plant species
that occur in wetlands: Northwest (Region 9). U.S. Department ofInterior, Fish and
Wildlife Service, Washington, D.C.
USDA NRCS (U.S. Department of Agriculture, Natural Resources Conservation Service).
2004. The PLANTS Database, Version 3.1 (http://plants.usda.gov). National Plant Data
Center, Baton Rouge, Louisiana 70874-4490 USA.
WSDOT (Washington State Department of Transportation). 2002. The Talent Decision.
Environmental Services Division, Olympia, Washington. Available at:
<http://www.wsdot.wa.gov/environment/Talent/TalentDecision.htm> . Accessed
February 22, 2005.
6-2
November 20051 553-1820-010 (02/03)
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APPENDIX A
Wetland Delineation Forms
Lel...,
."3 J .~)
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Parametrix
Data Plot #:
Wetland:
1
N/A
WETLAND DETERMINATION
(Modified from: 1987 ACOE Wetlands Delineation Manual)
ProjecVSite: Marrowstone Island Water System Phase 1 Date: 8/17/2005
ApplicanVOwner: Jefferson County PUD County: Jefferson
Investigator: C. Worsley, M. Maynard State: WA
o 1987 Method 0 1989 Method ~ 1997 WA St. Method Community 10: Upland Shrub
Do Normal Circumstances exist on the site? Yes 2- No Field Plot ID: 1
Is the site significantly disturbed (Atypical Situation)? Yes No X
Is the area a potential Problem Area? Yes No X
Remarks (Explain sample location, disturbances, problem areas):
Data Plot is located east of SR 116 near Mystery Bay State Park intersection (approx. 20' FE).
VEGETATION '....Dominant species are checked)
Plant Species
Epilobium ciliatum
Geum macrophyllum
Juncus effusus
Polystichum munitum
Tolmiea menziesii
% Cover
Stratum
5
Herb
Herb
Herb
Herb
Herb
Shrub
Shrub
Shrub
Shrub
Tree
1.
2.
3.
... 4.
5.
6.
... 7.
8.
... 9.
10. Rhamnus purshiana
Percent of Dominant Species that are OSl, FACW, or FAC
(except FAC-). Include species noted (*) as showing
morphological adaptations to wetlands. ''Tn indicates trace.
Remarks (Describe disturbances, relevant local variations, seasonal effects, etc.):
Vegetation in data plot is dominated by upland species.
Trace
Trace
60
Trace
Trace
Crataegus monogyna
Rosa spp.
Rubus armeniacus
Salix scouleriana
65
15
60
Trace
33
HYDROLOGY
Recorded Data (Describe in Remarks):
Stream, lake, or Tide Gage
Aerial Photograph
Other
X No Recorded Data Available
Field Observations:
Indicator
FACW-
FAC+
FACW
FACU
FAC
FAC-
NL
FACU
FAC
FAC-
Wetland Hydrology Indicators (Describe in Remarks):
Primary Indicators:
Inundated
Saturated in Upper 12 inches
Saturated in Upper 18 inches (1989 method only)
Water Marks
Drift Lines
Sediment Deposits
Drainage Patterns in Wetlands
Secondary Indicators (2 or more required):
Oxidized Root Channels in Upper 12 inches
Water-Stained Leaves
local Soil Survey Data
Other (Explain in Remarks)
Remarks (As relevant, describe recent precipitation, hydrologic modifications, local variations, etc.):
No primary or secondary indicators of hydrology.
Depth of Surface Water:
Depth to Free Water in Pit:
Depth to Saturated Soil:
None
None
>16
(in.)
(in.)
(in.)
L()e;
---klf~tj
Parametrix
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Data Plot #:
Wetland:
1
N/A
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Project/Site: Marrowstone Island Water System Phase 1
Date: 8/17/2005
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SOIL
Soil Survey Data:
Map Unit Name: Whidbey gravelly sandy loam, 0-15% slopes
Drainage Class: well drained
Field Observations Confirm Mapped Type?
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Taxonomy (Subgroup):
Profile Description:
Depth Horizon
(Inches) Designation
Entic Durochrepts
Yes No X NA
;1
0-4
4-12
A1
A2
Matrix Color
(Munsell Moist)
7.5YR 3/1
10YR 3/2
Mottle Color
(Munsell Moist)
Mottle
Abundance/Contrast
Texture, Concretions,
Rhizospheres, etc.
loam
silt loam
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None
7.5YR 3/4 and 10YR 4/6
12-16
B
2.5 Y 5/3
10YR 4/6
None
Common/Medium/Distinct and
Common/Medium/Prominent
CommonlMedium/Prominent
fine sandy loam
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Hydric Soil Indicators:
Histosol
Histic Epipedon
Sulfidic Odor
_ Probable Aquic Moisture Regime
Reducing Conditions
X Gleyed or Low-Chroma Colors
High Organic Content in Surface Layer
Listed on Local Hydric Soils List
Listed on State Hydric Soils List
Listed on National Hydric Soils List
AquicMoistllre Regime
Organic Streaking in Sandy Soils
X Mottles
Other (Explain in Remarks)
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Remarks (Describe soil disturbances, local variations, etc.):
Low chroma matrix colors and redox. features at 10" satisfy the hydric soil criterion.
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Hydrophytic Vegetation Present?
Hydric Soils Present?
Wetland Hydrology Present?
Yes
Yes X
Yes
No ..K-
No
No .l.L-
Is this Sampling Point Within a Wetland?
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WETLAND DETERMINATION
Yes No....2L-
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Remarks (If applicable, explain any differences between 1987 and 1989 delineation results):
Only one of the three wetland criteria was present indicating this area is not within a wetland.
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'c~3.
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Parametrix
Data Plot #:
Wetland:
10
6
WETLAND DETERMINATION
(Modified from: 1987 ACOE Wetlands Delineation Manual)
Date: 8/18/2005
County: Jefferson
State: WA
Project/Site: Marrowstone Island Water System Phase 1
Applicant/Owner: Jefferson County PUD
Investigator: C. Worsley, M. Maynard
o 1987 Method 0 1989 Method ~ 1997 WASt. Method
Do Normal Circumstances exist on the site? Yes ~ No
Community 10:
E2EM
Field Plot ID: 10
Is the site significantly disturbed (Atypical Situation)? Yes No
Is the area a potential Problem Area? Yes No
Remarks (Explain sample location, disturbances, problem areas):
Data plot is located southwest of wetland flag W6-5 along fenceline and ditch.
x
.1L
Wetland is tidally influenced.
VEGETATION 1.01 Dominant species are checked)
Plant Species % Cover Stratum Indicator
1. Distichlis spicata 5 Herb Fac+
01 2. Salicornia virginica 75 Herb OBL
Percent of Dominant Species that are OSL, FACW, or FAC
(except FAC-). Include species noted (*) as showing 100
morphological adaptations to wetlands. '''T'' indicates trace.
Remarks (Describe disturbances, relevant local variations, seasonal effects, etc.):
Vegetation within the data plot is dominated by hydrophytic species.
HYDROLOGY
Recorded Data (Describe in Remarks):
Stream, Lake, or Tide Gage
Aerial Photograph
Other
X No Recorded Data Available
Field Observations:
Wetland Hydrology Indicators (Describe in Remarks):
Primary Indicators:
Inundated
Saturated in Upper 12 inches
Saturated in Upper 18 inches (1989 method only)
X Water Marks
Drift Lines
Sediment Deposits
X Drainage Patterns in Wetlands
Depth of Surface Water:
Depth to Free Water in Pit:
Depth to Saturated Soil:
None
None
>18
(in.)
(in.)
(in.)
Secondary Indicators (2 or more required):
Oxidized Root Channels in Upper 12 inches
Water-Stained Leaves
Local Soil Survey Data
Other (Explain in Remarks)
Remarks (As relevant, describe recent precipitation, hydrologic modifications, local variations, etc.):
Area is tidally influenced, soil sampled during low tide.
--~r
._ ,3.~.o!..,.._\2.
Parametrix
Project/Site: Marrowstone Island Water System Phase 1
SOIL
Soil Survey Data:
Map Unit Name: Whidbey gravelly sandy loam, 0-15% slopes
Taxonomy (Subgroup):
Profile Description:
Depth Horizon
(Inches) Designation
0-9 A
9-18 8
Entic Durochrepts
Matrix Color
(Munsell Moist)
10YR 3/2
10 YR 2/1
Hydric Soil Indicators:
Histosol
Histic Epipedon
Sulfidic Odor
_ Probable Aquic Moisture Regime
_ Reducing Conditions
X Gleyed or Low-Chroma Colors
High Organic Content in Surface Layer
Mottle Color
(Munsell Moist)
None
None
Data Plot #:
Wetland:
10
6
Date: 8/18/2005
Drainage Class: well drained
Field Observations Confirm Mapped Type?
Ves No..L NA
Mottle
Abundance/Contrast
Texture, Concretions,
Rhizospheres, etc.
mucky sill
mucky slit
None
None
Listed on Local Hydric Soils List
Listed on State Hydric Soils List
Listed on National Hydric Soils List
Aquic Moisture Regime
Organic Streaking in Sandy Soils
X MottJes
Other (Explain in Remarks)
Remarks (Describe soil disturbances, localvariations,etc,):
Low chroma matrix color and the presence of redox. features satisfies the hydric soil criterion.
WETLAND DETERMINATION
Hydrophytic Vegetation Present?
Hydric Soils Present?
Wetland Hydrology Present?
Ves ...2S.....- No
Ves X No
Ves ..1:L- No
Is this Sampling Point Within a Wetland?
Ves ..L- No
Remarks (If applicable, explain any differences between 1987 and 1989 delineation results):
All three of the wetland criteria are present indicating this area is within a wetland.
(Ll;TTs........
35J . JJ2
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Parametrix
Data Plot #:
Wetland:
11
7
WETLAND DETERMINATION
(Modified from: 1987 ACOE Wetlands Delineation Manual)
Project/Site: Marrowstone Island Water System Phase 1 Date: 8/25/2005
Applicant/Owner: Jefferson County PUD County: Jefferson
Investigator: C. Worsley, M. Maynard, P. Anderson State: WA
o 1987 Method 0 1989 Method ~ 1997 WASt. Method Community ID: E2EM
Do Normal Circumstances exist on the site? Yes ...2S- No Field Plot 10: 11
Is the site significantly disturbed (AtypicC;l1 Situation)? Yes
Is the area a potential Problem Area? Yes
Remarks (Explain sample location, disturbances, problem areas):
Data plot is located approximately 40' west of SR 116 in vegetated spit.
Willey.
No X
No X
Shorebirds feeding along edges of spit. Sanderling, Wesa,
VEGETATION I. ~ Dominant species are checked)
Plant Species % Cover Stratum Indicator
1. Atriplex patula Trace H FACW
~ 2. Salicornia virginica 100 H OBL
Percent of Dominant Species that are OSL, FACW, or FAC
(except FAC-). Include species noted (*) as showing 100
morphological adaptations to wetlands. "T" indicates trace.
Remarks (Describe disturbances, relevant local variations, seasonal effects, etc.):
Vegetation within the data plot is dominated by hydrophytic species.
HYDROLOGY
Recorded Data (Describe in Remarks):
X Stream, Lake, or Tide Gage
Aerial Photograph
Other
No Recorded Data Available
Field Observations:
Wetland Hydrology Indicators (Describe in Remarks):
Primary Indicators:
X Inundated
X Saturated in Upper 12 inches
Saturated in Upper 18 inches (1989 method only)
Water Marks
X Drift Lines
Sediment Deposits
Drainage Patterns in Wetlands
Depth of Surface Water:
Depth to Free Water in Pit:
Depth to Saturated Soil:
o
14
Surface
(in.)
(in.)
(in.)
Secondary Indicators (2 or more required):
Oxidized Root Channels in Upper 12 inches
Water-Stained Leaves
Local Soil Survey Data
Other (Explain in Remarks)
Remarks (As relevant, describe recent precipitation, hydrologic modifications, local variations, etc.):
Area is tidally influenced. Saturation to the surface satisfies the wetland hydrology criterion. One inch of standing water in micro-
depressions around data plot.
, ,,-.,. 4-'!-
L t...H,;:;
-# l C"'"
11" _0, L .. ,.-"-'
'-'.-'---":." .'?~C;-
,~~,"".,
Parametrix
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Data Plot #:
Wetland:
11
7
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Project/Site: Marrowstone Island Water System Phase 1
Date: 8/25/2005
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SOIL
Soil Survey Data:
Map Unit Name: Tidal Marsh
Drainage Class.:
Field Observations Confirm fylapped Type?
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Taxonomy (Subgroup):
Profile Descriptio n:
Depth Horizol1
(Inches) Designation
0-7 A
7-20 C
Yes No X
NA
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Matrix dOlor
(Munsell Moist)
7.5 YR 3/1
7.5YR 2.5/1
Ivlottle Color
(Munsell Moist)
Mottle
Abundance/Contrast
Texture, Concretions,
Rhizospheres, etc.
sill
mUCky sill
I
None
None
None
None
Hydric Soil Indicators:
Histosol
Histic Epipedon
X Sulfidic Odor
_ Probable Aquic Moisture Regime
~ Reducing Conditions
~Gleyed or Low-Chroma Colors
High Organic Content in Surface Layer
Listed on Local Hydric Soils List
Listed .00. State Hydric Soils List
Listed on National Hydric'SoilsList
Aquic Moisture Regime
Organic Streaking in Sandy Soils
Mottles
Other (Explain in Remarks)
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Remarks (Describe soil disturbances,localvariations,etc;):
Low chroma matrix color, sulfidic odor, and reducing conditions satisfy the hydric soil criterion.
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WETLAND DETERMINATION
Hydrophytic Vegetation Present?
Hydric Soils Present?
Wetland Hydrology Present?
Yes -L No
Ves X No
-
Yes ..lL No
Is this Sampling Point Within aWetland?
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Yes X No
Remarks (If applicable, explain any differences between 1987 and 1989 delineation results):
All three of the wetland criteria are present indicating this area is within a wetland.
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...111::"YiiJ
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Parametrix
Data Plot #:
Wetland:
12
9
WETLAND DETERMINATION
(Modified from: 1987 ACOE Wetlands Delineation Manual)
Project/Site: Marrowstone Island Water System Phase 1
Applicant/Owner: Jefferson County PUD
Investigator: P. Anderson
o 1987 Method 0 1989 Method ~ 1997 WASt. Method
Do Normal Circumstances exist on the site? Yes ~
Is the site significantly disturbed (Atypical Situation)? Yes
Is the area a potential Problem Area? Yes
Remarks (Explain sample location, disturbances, problem areas):
Data plot is located approximately 2' east of wetland flag W9-2.
Date: 8/25/2005
County: Jefferson
State: WA
Community 10: PSS
Field Plot 10: 12
No
No
No
x
X
VEGETATION l, .; Dominant species are checked)
Plant Species % Cover Stratum Indicator
.; 1. Rosa spp. 30 Shrub NL
.; 2. Spiraea douglasii 60 Shrub FACW
Percent of Dominant Species that are OBL, FACW, or FAC
(except FAC-). Include species noted (*) as showing 50
morphological adaptations to wetlands. "T" indicates trace.
Remarks (Describe disturbances, relevant local variations, seasonal effects, etc.):
Spirea douglasH was the dominant species within Wetland 9 and Rosa spp. became more concentrated in upland area south of wetland
9.
HYDROLOGY
Recorded Data (Describe in Remarks):
Stream, Lake, or Tide Gage
Aerial Photograph
Other
X No Recorded Data Available
Field Observations:
Wetland Hydrology Indicators (Describe in Remarks):
Primary Indicators:
Inundated
Saturated in Upper 12 inches
Saturated in Upper 18 inches (1989 method only)
Water Marks
Drift Lines
Sediment Deposits
Drainage Patterns in Wetlands
Depth of Surface Water:
Depth to Free Water in Pit:
Depth to Saturated Soil:
None
None
>16
(in.)
(in.)
(in.)
Secondary Indicators (2 or more required):
Oxidized Root Channels in Upper 12 inches
Water-Stained Leaves
Local Soil Survey Data
Other (Explain in Remarks)
Remarks (As relevant, describe recent precipitation, hydrologic modifications, local variations, etc.):
No indicators present during site visit. However, hydrology is assumed and appears to be seasonal. Wetland is in a depression at top
of hill. Property owner said area is inundated with water during winter months.
..---.ul_G1~
...3.S..".....
Parametrix
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Data Plot #:
Wetland:
12
9
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Project/Site: Marrowstone Island Water System Phase 1
Date: 8/25/2005
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SOIL
Soil Survey Data:
Map Unit Name: Whidbey gravelly sandy loam, 0-15% slopes
Drainage Class: well drained
Field Observations Confirm. Mapped Type?
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Taxonomy (Subgroup): Entic Durochrepts
Profile Description:
Depth Horizon Matrix Color Mottle Color
(Inches) Designation (Munsell Moist) (Munsell Moist)
0-4 A 10YR 4/2 None
4-10 B 10YR 5/2 5YR 5/8
10-16 C 10YR 4/2 : 2.5YR4/6
Yes No..L NA
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Mottle
Abundance/Contrast
Texture, Concretions,
Rhizospheres, etc.
gravelly sandy loam
gravelly sandy loam
gravelly sandy loam
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None
Many/Course/Prominent
Many/Course/Prominent
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Hydric Soil Indicators:
Histosol
Histic Epipedon
Sulfidic Odor
Probable Aquic Moisture Regime
Reducing Conditions
X Gleyed or Low-Chroma Colors
High Organic Content in Sul1ace Layer
Listed on Local Hydric Soils List
Listed on State Hydric Soils List
Listed on National Hydric Soils List
_ Aquic Moisture Regime
-----..........organic Streakingjn $al'lcly$oils
X Mottles
Other (Explain in Remarks)
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Remarks (Describe soil disturbances, IClcal variations, etc.):
Low chroma matrix color and the presence of redox. fea.tures satisfy the hydric soil criterion.
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WETLAND DETERMINATION
Hydrophytic VegetationPresent?
Hydric Soils Present?
Wetland Hydrology Present?
Yes 2L- No
Yes X No
Yes -2L- No
Is this Sampling Point. Within a Wetland?
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Yes X No
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Remarks (If applicable, explain any differences between 1987 and 1989 delineation results):
This area appears to be a seasonal wetland based on the lack of wetland hydrology indicators present during the site visit. We
recommend re-visiting the site in the earlypart of the growing season to confirm these findings.
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Parametrix
13
10
Data Plot #:
Wetland:
WETLAND DETERMINATION
(Modified from: 1987 ACOE Wetlands Delineation Manual)
Project/Site: Marrowstone Island Water System Phase 1 Date: 8/25/2005
Applicant/Owner: Jefferson County PUD County: Jefferson
Investigator: C. Worsley, M. Maynard State: WA
o 1987 Method 0 1989 Method ~ 1997 WA St. Method Community ID: PSS
Do Normal Circumstances exist on the site? Yes ..lS- No Field Plot ID: 13
Is the site significantly disturbed (Atypical Situation)? Yes
Is the area a potential Problem Area? Yes
Remarks (Explain sample location, disturbances, problem areas):
Data plot is located approximately 12' north of Meade Road and approximately 15' northeast of wetland flag W10-4.
No
No
x
2-
% Cover
Stratum
Indicator
VEGETATION I." Dominant species are checked)
Plant Species
1. Carex obnupta
2 . Gaultheria shallon (on hummock)
3 . Holodiscus discolor (on hummock)
4 . Rubus ursinus
5 . Salix scouleriana
" 6 . Spiraea douglasii
7 . Pseudotsuga menziesii (rooted outside wetland)
Percent of Dominant Species that are OSl, FACW, or FAC
(except FAC-). Include species noted (*) as showing
morphological adaptations to wetlands. "T" indicates trace.
Remarks (Describe disturbances, relevant local variations, seasonal effects, etc.):
Vegetation within the data plot is dominated by hydrophytic species.
10
2
3
5
15
95
5
Herb
Shrub
Shrub
Shrub
Shrub
Shrub
Tree
100
OBL
FACU
NL
FACU
FAC
FACW
FACU
HYDROLOGY
Wetland Hydrology Indicators (Describe in Remarks):
Primary Indicators:
Inundated
Saturated in Upper 12 inches
Saturated in Upper 18 inches (1989 method only)
Water Marks
Drift Lines
Sediment Deposits
Drainage Patterns in Wetlands
Secondary Indicators (2 or more required):
Oxidized Root Channels in Upper 12 inches
Water-Stained leaves
local Soil Survey Data
Other (Explain in Remarks)
Remarks (As relevant, describe recent precipitation, hydrologic modifications, local variations, etc.):
No indicators present during site visit. Hydrology appears to be seasonal. Wetland is a depression at top of hil/, has hydrophytic
vegetation, and hydric soils. Property owner said area is inundated with 1.5 feet of standing water during winter months.
Recorded Data (Describe in Remarks):
Stream, lake, or Tide Gage
Aerial Photograph
Other
X No Recorded Data Available
Field Observations:
Depth of Surface Water:
Depth to Free Water in Pit:
Depth to Saturated Soil:
(in.)
(in.)
(in.)
None
None
>16
.J.).
fl'
I ('{- j._'...'.
F_. ,"h...oj . I t: rVl
"" L-1:]___...
,..~Ci}f"~~
Parametrix
I
Data Plot #:
Wetland:
13
10
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Project/Site: Marrowstone Island Water System Phase 1
Date: 8/25/2005
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SOIL
Soil Survey Data:
Map Unit Name: Whidbey gravelly sandy loam, 0-15% slopes
Drainage Class: well drained
Field Observations Confirm Mapped Type?
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Taxonomy (Subgroup):
Profile Description:
Depth Horizon
(Inches) Designation
0-11 A
11-16 B
Entic Durochrepts
Ves No ~ NA
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Matrix Color
(Munsell Moist)
7.5 YR 2.5/1
7.5 YR 4/2
Mottle Color
(Munsell Moist)
2.5YR 4/8
7.5 YR 3/4
Mottle
Abundance/Contrast
Texture, Concretions,
Rhizospheres, etc.
clayJoam
gravelly loam
I
Few/Medium/Prominent
Few/Fine/Prominent
Hydric Soil Indicators:
Histosol
Histic Epipedon
Sulfidic Odor
Probable Aquic Moisture Regime
Reducing Conditions
X Gleyed or Low-Chroma Colors
High Organic Content in Surface Layer
Listed on Local Hydric Soils List
Listed on State Hydric Soils List
Listed on National Hydric Soils List
_Aquic Moisture Regime
_ Organic Streakingili Sandy Soils
X Mottles
Other (Explain in Remarks)
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Remarks (Describe soil disturbances, local variations, etc.):
Low chroma matrix color and the presence of redox. features satisfy the hydric soil criterion.
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WETLAND DETERMINATION
Hydrophytic Vegetation Present?
Hydric Soils Present?
Wetland Hydrology Present?
Ves X No
Ves X No
Ves -L No
Is this Sampling POint Within a Wetland?
I
Ves ...2L- No
Remarks (If applicable, explain any differenc~s between 1987 and 1989 delineation results):
This area appears to be a seasonal wetland based on the lack of wetland hydrology indicators present during the site visit. We
recommend re-visiting the site in the early part of the growing season to confirm these findings.
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......... ....cki 1i~S-
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Parametrix
14
Near W8
Data Plot #:
Wetland:
WETLAND DETERMINATION
(Modified from: 1987 ACOE Wetlands Delineation Manual)
Date:
County:
State:
Project/Site: Marrowstone Island Water System Phase 1
Applicant/Owner: Jefferson County PUD
Investigator: C. Worsley, P. Anderson, M. Maynard
D 1987 Method D 1989 Method ~ 1997 WASt. Method
Do Normal Circumstances exist on the site? Yes .lL.. No
Is the site significantly disturbed (Atypical Situation)? Yes
Is the area a potential Problem Area? Yes
Remarks (Explain sample location, disturbances, problem areas):
Data plot is located west of Wetland 9 and approximately 15' south of Meade Rd.
No
No
8/25/2005
Jefferson
WA
Community ID: Upland shrub
Field Plot ID: 14
x
X
% Cover
Stratum
IndIcator
VEGETATION I,'; Dominant species are checked)
Plant Species
.; 1. Agrostis capillaris
2 . Dactylis glomerata
01 3 . Epilobium angustifolium
4 . Holcus lanatus
01 5 . Pteridium aquilinum
6 . Rubus parviflorus
.; 7 . Rubus ursin us
8 . Salix scouleriana
01 9. Corylus com uta
Percent of Dominant Species that are OSL, FACW, or FAC
(except FAC-). Include species noted (*) as showing
morphological adaptations to wetlands. "T" indicates trace.
Remarks (Describe disturbances, relevant local variations, seasonal effects, etc.):
Vegetation in data plot is dominated by upland species.
60
10
30
5
20
Herb
Herb
Herb
Herb
Herb
Shrub
Shrub
Shrub
Trace
55
8
25
Tree
20
FAG
FAGU
FAGU+
FAG
FAGU
FAG-
FAGU
FAG
FAGU
Wetland Hydrology Indicators (Describe in Remarks):
Primary Indicators:
Inundated
Saturated in Upper 12 inches
Saturated in Upper 18 inches (1989 method only)
Water Marks
Drift Lines
Sediment Deposits
Drainage Patterns in Wetlands
Secondary Indicators (2 or more required):
Oxidized Root Channels in Upper 12 inches
Water-Stained Leaves
Local Soil Survey Data
Other (Explain in Remarks)
Remarks (As relevant, describe recent precipitation, hydrologic modifications, local variations, etc.):
No indicators present during site visit.
HYDROLOGY
Recorded Data (Describe in Remarks):
Stream, Lake, or Tide Gage
Aerial Photograph
Other
X No Recorded Data Available
Field Observations:
Depth of Surface Water:
Depth to Free Water in Pit:
Depth to Saturated Soil:
None
None
>12+
(in.)
(in.)
(in.)
i (0"\ "-' , 'Y" "-'" ..
!,._ \...",,1...:;.1 I ; L:J,h
J.J. W
lt~__._,,_.__ ;-
"f..~'''.; C
...._.t.:t~:L'; ...,..~.L.
Parametrix
ProjecVSite: Marrowstone Island Water System Phase 1
SOIL
Soil Survey Data:
Map Unit Name: Whidbey gravelly sandy loam, 0-15% slopes
Taxonomy (Subgroup):
Profile Description:
Depth Horizon
(Inches) Designation
Entic Durochrepts
Matrix Color
(Munsell Moist)
10YR 2/2
10YR 2/2
10YR 3/3
0-6
6-10
10-12+
A1
A2
B
Hydric Soil Indicators:
Histosol
Histic Epipedon
Sulfidic Odor
_ Probable Aquic Moisture Regime
Reducing Conditions
Gleyed or Low-Chroma Colors
High Organic Content in Surface Layer
Mottle Color
(Munsell Moist)
None
2.5YR 4/8
None
Data Plot #:
Wetland:
14
Near W8
Date: 8/25/2005
Drainage Class: well drained
Field Observations Confirm Mapped Type?
Yes No X NA
Mottle
Abundance/Contrast
Texture, Concretions,
Rhizospheres, etc.
gravellysam:1y Ipam
gravelly sandy loam
gravelly sandy loam
None
Few/Fine/Prominent
None
X
Listed on Local Hydric Soils List
Listed on State Hydric: Soils List
Listed on National Hydric Soils List
Aquic Moisture Regime
Organic Streaking in Sandy Soils
Mottles
Other (Explain in Remarks)
Remarks (Describe soil disturbances, local variations, etc.):
Soil is extremely compacted, could not dig below approximately 12". Low chroma matrix color and the presence ofredox,'.features
satisfy the hydric soil criterion.
WETLAND DETERMINATION
Hydrophytic Vegetation Present?
Hydric Soils Present?
Wetland Hydrology Present?
Yes
Yes
Yes
X
No
No
No
Is this Sampling Point Within a Wetland?
..1L
1-
Yes No..K...-
Remarks (If applicable, explain any differences between 1987 and 1989 delineation results):
Only one of the three wetland criteria are present indicating this area is not within a wetland.
~?, CoC;-
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Parametrix
Data Plot #:
Wetland:
2
1
WETLAND DETERMINATION
(Modified from: 1987 ACOE Wetlands Delineation Manual)
Project/Site: Marrowstone Island Water System Phase 1
Applicant/Owner: Jefferson County PUD
Investigator: C. Worsley, M. Maynard
o 1987 Method 0 1989 Method ~ 1997 WASt. Method
Do Normal Circumstances exist on the site? Yes X
Date:
County:
State:
No
Is the site significantly disturbed (Atypical Situation)? Yes No
Is the area a potential Problem Area? Yes No
Remarks (Explain sample location, disturbances, problem areas):
Data plot is located approximately 20' SE of wetland boundary flag W1-3.
VEGETATION 1.11 Dominant species are checked)
Plant Species
1. Epilobium ciliatum
II 2 . Lemna minor
II 3 . Oenanlhe sarmentosa
4 . Malus fusea (s)
II 5 . Salix lucida ssp. lasiandra
II 6 . Spiraea douglasii
Percent of Dominant Species that are OSL, FACW, or FAC
(except FAC-). Include species noted (*) as showing
morphological adaptations to wetlands. "T" indicates trace.
Remarks (Describe disturbances, relevant local variations, seasonal effects, etc.):
Vegetation within the data plot is dominated by hydrophytic species.
% Cover
Trace
20
70
15
55
20
100
HYDROLOGY
8/17/2005
Jefferson
WA
Community ID:
PFO
Field Plot ID: 2
X
X
Stratum
Indicator
Herb
Herb
Herb
Shrub
Shrub
Shrub
FACW-
OBL
OBL
FACW
FACW+
FACW
Wetland Hydrology Indicators (Describe in Remarks):
Primary Indicators:
Inundated
X Saturated in Upper 12 inches
Saturated in Upper 18 inches (1989 method only)
Water Marks
Drift Lines
Sediment Deposits
Drainage Patterns in Wetlands
Secondary Indicators (2 or more required):
Oxidized Root Channels in Upper 12 inches
Water-Stained Leaves
Local Soil Survey Data
Other (Explain in Remarks)
Remarks (As relevant, describe recent precipitation, hydrologic modifications, local variations, etc.):
Water seeping in to soil pit at 6". Dried Lemna minor on lower stems of terrestrial vegetation (10" above ground).
Recorded Data (Describe in Remarks):
Stream, Lake, or Tide Gage
Aerial Photograph
Other
X No Recorded Data Available
Field Observations:
Depth of Surface Water:
Depth to Free Water in Pit:
Depth to Saturated Soil:
(in.)
(in.)
(in.)
None
13
surface
X
# L'(7
>-- --."-'" ---':',r~"""""":,:---
U<.J., rr' (1 c.....
",'"',..,,~4,,~1,-" . ,iSJ -"',)
Parametrix
2
1
Project/Site: MarrowstonE;llsland Water System Phase 1
SOIL
Soil Survey Data:
Map Unit Name: Whidbey gravelly sandy loam, 0-15% slopes
Data Plot #:
Wetland:
Date: 8/17/2005
Drainage Class: well drained
Field Observations Confirm Mapped Type?
Taxonomy (Subgroup):
Profile Description:
Depth Horizon
(Inches) Designation
0-19 A
Entic Durochrepts
Yes No.lL- NA
Matrix Color
(Munsell MOist)
10YR 2/1
Mottle Color
(Munsell MOist)
None
Hydric Soil Indicators:
Histosol
Histic Epipedon
Sulfidic Odor
_ Probable Aquic Moisture Regime
_ Reducing Conditions
~ Gleyed or Low-Chroma Colors
X High Organic Content in Surface Layer
Mottle
Abundance/Contrast
Texture, Concretions,
Rhizospheres, etc.
loamy muck
None
Listed on Local Hydric Soils List
Listed on State Hydric Soils List
Listed on National Hydric Soils List
Aquic Moisture Regime
_ Organic StrE;laking in Sandy Soils
Mottles
Other (Explain in Remarks)
Remarks (Describe soil disturbances, local variations, etc.):
Low chrofTIaJn?tri><'co'ors ?nd higl]org?nic cont~nt sati~fy th~lJ.ydric ~oU critfJrigri.
WETLAND DETERMINATION
Hydrophytic Vegetation Present?
Hydric Soils Present?
Wet.land HydrolQgy Present?
Yes ...2S..- No
Yes X No
Yes ...2L- No
Is this Sampling Point Within a Wetland?
Yes ...2S.....- No
Remarks (If applicable, explain any differences between 1987 and 1989 delineation results):
All three of the wetland criteria are present indicating this area is within a wetland.
i } ~.~
l Lr:.-......"..,......-....."'.-......--."~.".
."H'"..."-.........'~ . {
> ,,~,..,:'~(>" \Q
.......... '," ....
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Parametrix
Data Plot #:
Wetland:
3
Near W1
WETLAND DETERMINATION
(Modified from: 1987 ACOE Wetlands Delineation Manual)
Date: 8/17/2005
County: Jefferson
State: WA
Project/Site: Marrowstone Island Water System Phase 1
Applicant/Owner: Jefferson County PUD
Investigator: C. Worsley, M. Maynard
o 1987 Method 0 1989 Method ~ 1997 WASt. Method
Do Normal Circumstances exist on the site? Yes -L No
Is the site significantly disturbed (Atypical Situation)? Yes
Is the area a potential Problem Area? Yes
Remarks (Explain sample location, disturbances, problem areas):
Data Plot is located south of wetland flag W1-1.
No X
No 2-
VEGETATION I.'" Dominant species are checked)
Plant Species
1. Athyrium filix-femina
... 2 . Rubus spectabilis
... 3 . Sambucus racemosa
4 . Alnus rubra
Percent of Dominant Species that are OSL, FACW, or FAC
(except FAC-). Include species noted (*) as showing
morphological adaptations to wetlands. "T" indicates trace.
Remarks (Describe disturbances, relevant local variations, seasonal effects, etc.):
Vegetation in data plot is not dominated by hydrophytic species.
% Cover
Stratum
Trace
Herb
Shrub
Shrub
80
25
5
Tree
50
HYDROLOGY
Recorded Data (Describe in Remarks):
Stream, Lake, or Tide Gage
Aerial Photograph
Other
X No Recorded Data Available
Field Observations:
Community 10: Upland Shrub
Field Plot 10: 3
Indicator
FAC+
FAC+
FACU
FAC
Wetland Hydrology Indicators (Describe in Remarks):
Primary Indicators:
Inundated
Saturated in Upper 12 inches
Saturated in Upper 18 inches (1989 method only)
Water Marks
Drift Lines
Sediment Deposits
Drainage Patterns in Wetlands
Secondary Indicators (2 or more required):
Oxidized Root Channels in Upper 12 inches
Water-Stained Leaves
Local Soil Survey Data
Other (Explain in Remarks)
Remarks (As relevant, describe recent precipitation, hydrologic modifications, local variations, etc.):
There were no primary or secondary indicators of wetland hydrology.
Depth of Surface Water:
Depth to Free Water in Pit:
Depth to Saturated Soil:
None
None
>18
(in.)
(in.)
(in.)
'-~~'''''' .Ul... ..'..".".-.
..4;-\o..-C9~
Parametrix
ProjecVSite: Marrowstone Island Water System Phase 1
SOIL
Soil Survey Data:
Map Unit Name: Whidbey gravelly sandy loam, 0-15% slopes
Taxonomy (Subgroup): Entic Durochrepts
Profile Description:
Depth Horizon Matrix Color Mottle Color
(Inches) Designation (Munsell Moist) (Munsell Moist)
0-7 Ai 10YR 2/2 None
7-14 A2 10YR 2/1 None
14-18 B 7.5YR 2.512 None
Hydric Soil Indicators:
Histosol
Histic Epipedon
Sulfidic Odor
_ Probable Aquic Moisture Regime
_ Reducing Conditions
X Gleyed or Low-Chroma Colors
High Organic Content in Surface Layer
Remarks (Describe soil disturbances, local variations, etc.):
Low chroma. matrix Colqr at 10"satisfiesJh.e hydricsoitcriterion.
WETLAND DETERMINATION
Hydrophytic Vegetation Present?
Hydric Soils Present?
Wetland Hydrology Present?
Yes
Yes X
Yes
No X
No
No .lL-
Data Plot #:
Wetland:
Date: 8/17/2005
3
Near W1
Drainage Class: well drained
Field Observations Cqnfirm Mapped Type?
Yes
No X NA
Mottle
Abundance/Contrast
None
None
None loam
Listed on Local Hydric Soils List
Listed on State Hydric Soils List
Listed on NCltlOOiil Hydric $oil~ List
Aquic Moisture Regime
_ Organic Streaking il1 Sandy Soils
Mottles
Other (Explain in Remarks)
Texture, Concretions,
Rhizospheres, etc.
loam - plar)! litter in root zone
loam
Is this Sampling Point Within a Wetland?
Yes No X
Remarks (If applicable, explain any differences between 1987 and 1989 delineation results):
Only one of the three wetland criteria was present indicating this area is not within a wetland.
lLl
L{l...
~...~'
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Parametrix
Data Plot #:
Wetland:
4
2
WETLAND DETERMINATION
(Modified from: 1987 ACOE Wetlands Delineation Manual)
Project/Site: Marrowstone Island Water System Phase 1
Applicant/Owner: Jefferson County PUD
Investigator: C. Worsley, M. Maynard
o 1987 Method 0 1989 Method ~ 1997 WASt. Method
Do Normal Circumstances exist on the site? Yes -2L- No
Date: 8/17/2005
County: Jefferson
State: WA
Is the site significantly disturbed (Atypical Situation)? Yes
Is the area a potential Problem Area? Yes
Remarks (Explain sample location, disturbances, problem areas):
Data Plot is located approximately 15' west of wetland flag W2-4.
No X
No .lL-
VEGETATION I. II Dominant species are checked)
Plant Species
% Cover Stratum
1. Ranunculus repens
2. Salix lucida ssp. lasiandra
II 3 . Spiraea douglasii
4 . Alnus rubra
Percent of Dominant Species that are OSL, FACW, or FAC
(except FAC-). Include species noted (*) as showing
morphological adaptations to wetlands. "T" indicates trace.
Remarks (Describe disturbances, relevant local variations, seasonal effects, etc.):
Vegetation within the data plot is dominated by hydrophytic species.
Trace
Herb
Shrub
Shrub
5
90
15
Tree
100
HYDROLOGY
Recorded Data (Describe in Remarks):
Stream, Lake, or Tide Gage
Aerial Photograph
Other
X No Recorded Data Available
Field Observations:
Community 10:
Field Plot ID: 4
PSS
Indicator
FACW
FACW+
FACW
FAC
Wetland Hydrology Indicators (Describe in Remarks):
Primary Indicators:
Inundated
Saturated in Upper 12 inches
Saturated in Upper 18 inches (1989 method only)
Water Marks
Drift Lines
Sediment Deposits
Drainage Patterns in Wetlands
Secondary Indicators (2 or more required):
Oxidized Root Channels in Upper 12 inches
X Water-Stained Leaves
Local Soil Survey Data
X Other (Explain in Remarks)
Remarks (As relevant, describe recent precipitation, hydrologic modifications, local variations, etc.):
Wetland was delineated during dry season. Hydrology appears to be seasonal. The presence of hydrophytic vegetation, hydric soils,
and water-stained leaves indicates water is present for a duration sufficient to meet the wetland hydrology criterion.
Depth of Surface Water:
Depth to Free Water in Pit:
Depth to Saturated Soil:
None
None
>18
(in.)
(in.)
(in.)
.fJ. Lt"'l
":--- L ofQ=-
._.,9J~. .........J:1.
Parametrix
Project/Site: Marrowstone Island Water System Phase 1
SOIL
Soil Survey Data:
Map Unit Name: Whidbey gravelly sandy loam, 0-15% slopes
Taxonomy (Subgroup):
Profile Description:
Depth Horizon
(Inches) Designation
0-16 A
16-18 8
Entic Durochrepts
Matrix Color
(Munsell Moist)
10YR 2/1
7.5 YR 2.512
Hydric Soil Indicators:
Histosol
Histic Epipedon
Sulfidic Odor
Probable Aquic Moisture Regime
Reducing Conditions
X Gleyed or Low-Chroma Colors
X High Organic Content in Surface Layer
Mottle Color
(Munsell Moist)
None
None
Data Plot #:
Wetland:
4
2
Date: 8/17/2005
Drainage Class: well drained
Field Observations Confirm Mapped Type?
Yes No X
NA
Mottle
Abundance/Contrast
texture, Concretions,
Rhizospheres, etc.
loam
sandy loam
None
None
Listed on Local Hydric Soils List
Listed on State Hydric Soils List
Listed on National Hydric Soils List
AqLJic Moisture RegirhEl
Organic Streaking in Sandy Soils
""'"""--'" Mottles
Other (E;xplain in Remarks)
Remarks (Describe soil disturbances, local variations, etc.):
High organic content in A horizon and loVYc.h(()fTlaqol()f'$s;o,t!f)fy thepydric soil criterion.
WETLAND DETERMINATION
Hydrophytic Vegetation Present?
Hydric Soils Present?
Wetland Hydrology Present?
Yes ...2L- No
Yes X No
Yes -L No
Is this Sampling Point Within a Wetland?
Yes --2L- No
Remarks (If applicable, explain any differences between 1987 and 1989 delineation results):
All three of the wetland criteria are present indicating that this area is within a wetland.
q~lJ})
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Parametrix
5
Near W2
Data Plot #:
Wetland:
WETLAND DETERMINATION
(Modified from: 1987 ACOE Wetlands Delineation Manual)
Project/Site: Marrowstone Island Water System Phase 1
Applicant/Owner: Jefferson County PUD
Investigator: C. Worsley, M. Maynard
o 1987 Method 0 1989 Method ~ 1997 WASt. Method
Do Normal Circumstances exist on the site? Yes -L No
Date: 8/17/2005
County: Jefferson
State: WA
Is the site significantly disturbed (Atypical Situation)? Yes
Is the area a potential Problem Area? Yes
Remarks (Explain sample location, disturbances, problem areas):
Data plot is located north of Wetland 2, approximately 25' north of wetland flag W2-2.
No
No
Community 10: Upland Shrub
Field Plot rD: 5
x
2-
VEGETATION I."" Dominant species are checked)
Plant Species
% Cover Stratum
Indicator
.... 1. Gaultheria shallon
2 . Rosa spp.
3 . Rubus armeniacus
4 . Rubus ursinus
.... 5 . Malus fusca
6 . Pseudotsuga menziesii
7. Thuja plicata
Percent of Dominant Species that are OSL, FACW, or FAC
(except FAC-). Include species noted (*) as showing
morphological adaptations to wetlands. 'T' indicates trace.
Remarks (Describe disturbances, relevant local variations, seasonal effects, etc.):
Vegetation in data plot is not dominated by hydrophytic species.
100
Shrub
Shrub
Shrub
Shrub
Trace
Trace
Trace
50
Tree
Tree
Tree
Trace
Trace
50
FACU
NL
FACU
FACU
FACW
FACU
FAC
Wetland Hydrology Indicators (Describe in Remarks):
Primary Indicators:
Inundated
Saturated in Upper 12 inches
Saturated in Upper 18 inches (1989 method only)
Water Marks
Drift Lines
Sediment Deposits
Drainage Patterns in Wetlands
Secondary Indicators (2 or more required):
Oxidized Root Channels in Upper 12 inches
Water-Stained Leaves
Local Soil Survey Data
Other (Explain in Remarks)
Remarks (As relevant, describe recent precipitation, hydrologic modifications, local variations, etc.):
No primary or secondary indicators of wetland hydrology.
HYDROLOGY
Recorded Data (Describe in Remarks):
Stream, Lake, or Tide Gage
Aerial Photograph
Other
X No Recorded Data Available
Field Observations:
Depth of Surface Water:
Depth to Free Water in Pit:
Depth to Saturated Soil:
(in.)
(in.)
(in.)
None
None
>18
! ,"'\(~;
,-.\..--J,,-:J
Ml
r"A"-"~~-:j :-"~..-'._,. --_...."'.:'1~;"'.'~-;:;:-:;,--
[{Cr'"... ,>~ 0 (.".;1..
,,-: ,i.:' ,# """"., ,......,.....:: ::..::CQ.,t:>
Parametrix
I
Data Plot #:
Wetland:
5
Near W2
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I
Project/Site: Marrowstone Island Water System Phase 1
Date: 8/17/2005
I
SOIL
Soil Survey Data:
Map Unit Name: Whidbey gravelly sandy loam, 0-15% slopes
Drainage Class: well drained
Field Observations Confirm Mapped Type?
I
Taxonomy (Subgroup):
Profile Description:
Depth Horizon
(Inches) Designation
0-13 A
13-18 B
Entic Durochrepts
Yes No -L NA
I
Matrix Color
(Munsell Moist)
10YR2f2
2.5Y 4/2
Mottle Color
(Munsell Moist)
Mottle
Abundance/Contrast
Texture, Concretions,
Rhizospheres, etc.
s!lnc!y loam
sandy loam
I
None.
None
None,
None
Hydric Soil Indicators:
Histosol
Histic Epipedon
Sulfidic Odor
_ Probable Aquic Moisture Regime
_ Reducing Conditions
Gleyed or Low-Chroma Colors
High Organic Content in Surface Layer
Remarks (Describe soil disturbances, local variations, etc.):
No hydriC soil indicators present
Listed on Local Hydric Soils List
Listed on State Hydric Soils List
L.isted on National Hydric Soils List
_____ Aquic Moisture Regime
----" Organic Streaking in Sandy Soils
Mottles
Other (Explain in Remarks)
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WETLAND DETERMINATION
Hydrophytic Vegetation Present?
Hydric Soils Present?
Wetland Hydrology Present?
Yes
Yes
Yes
No L
No X
No L-
Is this Sampling PointWithiri a Wetland?
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Yes No X
Remarks (If applicable, explain any differences between 1987 and 1989 delineation results):
None of the three wetland criteria are present indicating this area is not within a wetland.
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..1 LJ.,....<~ I
.'i'I, ,.,(o;s
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Parametrix
Data Plot #:
Wetland:
6
3
WETLAND DETERMINATION
(Modified from: 1987 ACOE Wetlands Delineation Manual)
Project/Site: Marrowstone Island Water System Phase 1 Date: 8/18/2005
Applicant/Owner: Jefferson County PUD County: Jefferson
Investigator: C. Worsley, M. Maynard State: WA
D 1987 Method D 1989 Method ~ 1997 WA SI. Method Community ID: PSS/ PEM
Do Normal Circumstances exist on the site? Yes -2L- No Field Plot ID: 6
No
Is the site significantly disturbed (Atypical Situation)? Yes
Is the area a potential Problem Area? Yes
Remarks (Explain sample location, disturbances, problem areas):
Data plot is located between ditch and fence line approximately 100' south of "Nordland" sign. Wetland community at dataplot consists
of PSS along fence and PEM in adjacent field.
No
x
X
VEGETATION I. ~ Dominant species are checked)
Plant Species % Cover Stratum Indicator
'" 1. Agrostis capillaris 25 Herb FAC
2. Athyrium filix-femina 5 Herb FAC+
3. Epilobium ciliatum 2 Herb FACW-
4. Equisetum telmateia 5 Herb FACW
5. Galium trifidum Trace Herb FACW+
6. Holcus lanatus 5 Herb FAC
~ 7. Juncus effusus 70 Herb FACW
~ 8. Typha latifolia 20 Herb OBL
9. Alnus rubra (s) Trace Shrub FAC
~ 10. Rosa spp. 25 Shrub NL
11. Rubus laciniatus 2 Shrub FACU+
12. Rubus spectabilis 15 Shrub FAC+
13. Rubus ursinus Trace Shrub FACU
Percent of Dominant Species that are OSL, FACW, or FAC
(except FAC-). Include species noted (*) as showing 75
morphological adaptations to wetlands. "T" indicates trace.
Remarks (Describe disturbances, relevant local variations, seasonal effects, etc.):
Vegetation within the data plot is dominated by hydrophytic species.
HYDROLOGY
Recorded Data (Describe in Remarks):
Stream, Lake, or Tide Gage
Aerial Photograph
Other
X No Recorded Data Available
Field Observations:
Wetland Hydrology Indicators (Describe in Remarks):
Primary Indicators:
Inundated
Saturated in Upper 12 inches
Saturated in Upper 18 inches (1989 method only)
Water Marks
Drift Lines
Sediment Deposits
Drainage Patterns in Wetlands
Depth of Surface Water:
Depth to Free Water in Pit:
Depth to Saturated Soil:
(in.)
(in.)
(in.)
None
None
Secondary Indicators (2 or more required):
Oxidized Root Channels in Upper 12 inches
Water-Stained Leaves
Local Soil Survey Data
X Other (Explain in Remarks)
Remarks (As relevant, describe recent precipitation, hydrologic modifications, local variations, etc.):
Wetland delineated durina the drY season. Wetland aDDears to be seasonal. Water Dondina in adiacent ditch. The 't:~e;01. 'I
>16
#..--_...__LLl
,,,S=k
(9~
Parametrix
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Data Plot #: 6
Wetland: 3
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Project/Site: Marrowstone Island Water System Phase 1 Date: 8/18/2005
hydrophytic vegetation, hydric soils, and standing wilter in the ditch indicates water is present for duration sufficient to meet the wetland I
hydrology criterion.
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1.~1~-.S-
>~3 .._,(0 .
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Parametrix
Data Plot #:
Wetland:
6
3
WETLAND DETERMINATION
(Modified from: 1987 ACOE Wetlands Delineation Manual)
Project/Site: Marrowstone Island Water System Phase 1
SOIL
Soil Survey Data:
Map Unit Name: Whidbey gravelly sandy loam, 0-15% slopes
Taxonomy (Subgroup):
Profile Description:
Depth Horizon
(Inches) Designation
0-16 A
Entic Durochrepts
Matrix Color
(Munsell Moist)
10YR 2/1
Mottle Color
(Munsell Moist)
10YR 4/6
Hydric Soil Indicators:
Histosol
Histic Epipedon
Sulfidic Odor
_ Probable Aquic Moisture Regime
_ Reducing Conditions
X Gleyed or Low-Chroma Colors
High Organic Content in Surface Layer
Date: 8/18/2005
Drainage Class: well drained
Field Observations Confirm Mapped Type?
Yes No X
NA
Mottle
Abundance/Contrast
Texture, Concretions,
Rhizospheres, etc.
Few/Fine/Prominent
clay loam
Listed on Local Hydric Soils List
Listed on State Hydric Soils List
Listed on National Hydric Soils List
Aquic Moisture Regime
Organic Streaking in Sandy Soils
X Mottles
Other (Explain in Remarks)
Remarks (Describe soil disturbances, local variations, etc.):
Low chroma matrix color and the presence of redox. features satisfies the hydric soil criterion.
WETLAND DETERMINATION
Hydrophytic Vegetation Present?
Hydric Soils Present?
Wetland Hydrology Present?
Yes .lL- No
Yes X No
Yes -1L- No
Is this Sampling Point Within a Wetland?
Yes .L- No
Remarks (If applicable, explain any differences between 1987 and 1989 delineation results):
All three of the wetland criteria are present indicating this area is within a wetland.
~ l...""^\(....<:\
L,~ \,,-) . <:1
_..._lLL__-:S-
..5:t._.JfL.,_-
Parametrix
Data Plot #:
Wetland:
7
Near W4
Project/Site: Marrowstone Island Water System Phase 1
Applicant/Owner: Jefferson County PUD
Investigator: C. Worsley, M. Maynard
o 1987 Method 0 1989 Method ~ 1997 WASt. Method
Do Normal Circumstances exist on the site? Yes --25-
Date: 8/18/2005
County: Jefferson
State: WA
No
Community ID: Upland Shrub
Field Plot 10: 7
Is the site significantly disturbed (Atypical Situation)? Yes
Is the area a potential Problem Area? Yes
Remarks (Explain sample location, disturbances, problem areas):
Data plot is located south of wetland 4, approximately 15.: east of road on edge of Pseudotsuga menziesii upland forest about 25' south
of Wetland flag 4-16.
No
x
..L-
No
VEGETATION 1.0;1 Dominant species are checked)
Plant Species 0/0 Cover Stratum Indicator
1. Athyrium filix-Iemina 2 Herb FAC+
2. Equisetum lelmalela 15 Herb FACW
3. Polystichum munitum 10 Herb FACU
4. Alnus rubra (s) Trace Shrub FAC
5. Holodiscus discolor 2 Shrub NL
6. Ribes divaricatum 5 Shrub FAC
0;1 7. Rosa spp. 50 Shrub NL
0;1 8. Rubus spectabilis 35 Shrub FAC+
0;1 9. Rubus ursinus 20 Shrub FACU
10. Salix scouleriana Trace Shrub FAC
11. Sambucus racemosa Trace Shrub FACU
12. Symphoricarpos albus '15 Shrub '. FACU
13. Malus lusca 2 Tree FACW
Percent of Dominant Species that are OSL, FACW, or FAC
{except FAC-}: . Include species noted (*) as showing 33
morphological adaptations to wetlands. "T" indicates trace.
Remarks (Describe disturbances, relevant local variations, seasonal effects, etc.):
Vegetation in data plot is dominated by upland species.
HYDROLOGY
Recorded Data (Describe in Remarks):
Stream, Lake, or Tide Gage
Aerial Photograph
Other
X No Recorded Data Available
Field Observations:
Wetland Hydrology Indicators (Describe in Remarks):
Primary Indicators:
Inundated
Saturated in Upper 12 inches
Saturated in Upper 18 inches (1989 method only)
Water Marks
Drift Lines
Sediment Deposits
Drainage Patterns in Wetlands
Depth of Surface Water:
Depth to Free Water in Pit:
Depth to Saturated Soil:
None
None
(in.)
(in.)
(in.)
Secondary Indicators (2 or more required):
Oxidized Root Channels in Upper 12 inches
Water-Stained Leaves
Local Soil Survey Data
Other (Explain in Remar~s),. ,,',
l ~' "1 ..~. *'
Remarks {As relevant, describe recent precipitation, hydrologic modifications, local variations, etc.):i,"\~/ ';,,;'> "1
No onmaw '" s8COm'mv ;ndicaloro 01 we"'nd hvdro'"" _enl. ~.it-~/~s
>18
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Parametrix
Data Plot #: 7
Wetland: Near W4
WETLAND DETERMINATION
(Modified from: 1987 ACOE Wetlands Delineation Manual)
Project/Site: Marrowstone Island Water System Phase 1
Date: 8/18/2005
- -__La.. ---'7'___~.
-"-5~._.kl2_
Parametrix
Project/Site: Marrowstone Island Water System Phase 1
SOIL
Soil Survey Data:
Map Unit Name: Whidbey gravelly sandy loam, 0-15% slopes
Taxonomy (Subgroup):
Profile Description:
Depth Horizon
(Inches) Designation
0-10 A
10-18 B
Entic Durochrepts
Matrix Color
(Munsell Moist)
10YR 3/3
5YR 5/8
Mottle Color
(Munsell Moist)
None
None
Hydric Soil Indicators:
Histosol
Histic Epipedon
Sulfidic Odor
_ Probable Aquic Moisture Regime
_ Reducing Conditions
Gleyed or Low-Chroma Colors
High Organic Content in Surface Layer
Remarks (Describe soil disturbances, local variations, etc.):
No hydric soil indicators present.
WETLAND DETERMINATION
Hydrophytic Vegetation Present?
Hydric Soils Present?
Wetland Hydrology Present?
Yes
Yes
Yes
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Data Plot #:
Wetland:
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7
Near W4
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Date: 8/18/2005
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Drainage Class: well drained
Field Observations Confirm Mapped Type?
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Yes No.2S- NA
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Motile
Abundance/Contrast
Texture, Concretions,
Rhizospheres, etc.
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None
None
sandy loam
sandy loam
Listed on Local Hydric Soils List
Listed on State Hydric Soils List
Listed on National Hydric Soils List
Aquic Moisture Regime
Organic Streaking in Sandy Soils
Mottles
Other (Explain in Remarks)
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No 2.-
No X
No ..1L.-
Is this Sampling Point Within a Wetland?
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Yes No X
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Remarks (If applicable, explain any differences between 1987 and 1989 delineation results):
None of the three wetland criteria are present indicating this area is not within a wetland.
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"--,,...'..'...N~~;rk'J
.....,..~1: " I
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Parametrix
Data Plot #:
Wetland:
8
4
WETLAND DETERMINATION
(Modified from: 1987 ACOE Wetlands Delineation Manual)
Date: 8/18/2005
County: Jefferson
State: WA
Project/Site: Marrowstone Island Water System Phase 1
ApplicanVOwner: Jefferson County PUD
Investigator: C. Worsley, M. Maynard
o 1987 Method 0 1989 Method ~ 1997 WA St. Method
Do Normal Circumstances exist on the site? Yes .JS..... No
Community ID:
PFO
Field Plot ID: 8
No
Is the site significantly disturbed (Atypical Situation)? Yes
Is the area a potential Problem Area? Yes
Remarks (Explain sample location, disturbances, problem areas):
Data plot is located approximately 10' east of wetland flag 4-14. Frogs, snags, and downed woody debris present.
No
x
X
VEGETATION t." Dominant species are checked)
Plant Species % Cover Stratum Indicator
., 1. Agrostis capillaris 20 Herb FAG
2. Athyrium filix-femina 10 Herb FAG+
3. Equisetum telmateia 5 Herb FAGW
4. Festuca arundinacea 2 Herb FAG-
5. Juncus effusus 10 Herb FAGW
6. Poa spp. 2 Herb NL
7. Rosa spp. 5 Shrub
., 8. Rubus armeniacus 50 Shrub FAGU
9. Rubus spectabilis 15 Shrub FAG+
10. Salix lucida ssp. lasiandra 15 Shrub FAGW+
11. Symphoricarpos albus 5 Shrub FAGU
., 12. Alnus rubra 30 Tree FAG
13. Malus fusca 5 Tree FAGW
Percent of Dominant Species that are OBL, FACW, or FAC
(except FAC-). Include species noted (*) as showing 66
morphological adaptations to wetlands. "T" indicates trace.
Remarks (Describe disturbances, relevant local variations, seasonal effects, etc.):
Vegetation within the data plot is dominated by hydrophytic species.
HYDROLOGY
Recorded Data (Describe in Remarks):
Stream, Lake, or Tide Gage
Aerial Photograph
Other
X No Recorded Data Available
Field Observations:
Wetland Hydrology Indicators (Describe in Remarks):
Primary Indicators:
Inundated
Saturated in Upper 12 inches
Saturated in Upper 18 inches (1989 method only)
Water Marks
Drift Lines
Sediment Deposits
Drainage Patterns in Wetlands
Depth of Surface Water:
Depth to Free Water in Pit:
Depth to Saturated Soil:
None
None
>18
(in.)
(in.)
(in.)
Secondary Indicators (2 or more required):
Oxidized Root Channels in Upper 12 inches
Water-Stained Leaves
Local Soil Survey Data
X Other (Explain in Remarks)
Remarks (As relevant, describe recent precipitation, hydrologic modifications, local variations, etc.):
Wetland delineated durina drY season. Wetland hvdroloav assumed based on the Dresence of hvdroDhvtic veaeta{~oc/Grif~f.o~'W~1d
#.~._..___L tJ,
C1S ({f
~_,~J~,- /~?"",;
'..(dC;-'
Parametrix
Project/Site: Marrowstone Island Water System Phase 1
depressional topography. Hydrology is seasonal.
Date: 8/18/2005
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Data Plot #: 8
Wetland: 4
J l:J.~----~
S.l~-
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Parametrix
Data Plot #:
Wetland:
WETLAND DETERMINATION
(Modified from: 1987 ACOE Wetlands Delineation Manual)
Project/Site: Marrowstone Island Water System Phase 1
SOIL
Soil Survey Data:
Map Unit Name: Whidbey gravelly sandy loam, 0-15% slopes
Taxonomy (Subgroup):
Profile Description:
Depth Horizon
(Inches) Designation
0-18 A
Entic Durochrepts
Matrix Color
(Munsell Moist)
10YR 3/2
Mottle Color
(Munsell Moist)
5YR 5/8
Date: 8/18/2005
8
4
Drainage Class: well drained
Field Observations Confirm Mapped Type?
Yes No..L NA
Mottle
Abundance/Contrast
Common/Fine-
MediumlProminent
Hydric Soil Indicators:
Histosol
Histic Epipedon
Sulfidic Odor
Probable Aquic Moisture Regime
_ Reducing Conditions
X Gleyed or Low-Chroma Colors
_ High Organic Content in Surface Layer
Remarks (Describe soil disturbances, local variations, etc.):
Low chroma matrix color with presence of redox. features satisfies the hydriC soil criterion.
WETLAND DETERMINATION
Hydrophytic Vegetation Present?
Hydric Soils Present?
Wetland Hydrology Present?
Yes X No
Yes X No
Yes ...2l... No
X
Listed on Local Hydric Soils List
Listed on State Hydric Soils List
Listed on National Hydric Soils List
Aquic Moisture Regime
Organic Streaking in Sandy Soils
Mottles
Other (Explain in Remarks)
Texture, Concretions,
Rhizospheres, etc.
clay loam
Yes X No
Is this Sampling Point Within a Wetland?
Remarks (If applicable, explain any differences between 1987 and 1989 delineation results):
All three of the wetland criteria are present indicating that this area is within a wetland.
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1".,
~'._Ll_""r. ."
o \0
....._.____.,,_f2
Parametrix
Project/Site: Marrowstone Island Water System Phas~.1
Applicant/Owner: Jefferson County PUD
Investigator: C. Worsley, M. Maynard
o 1987 Method 0 1989 Method ~ 1997 WA SI. Method
Do Normal Circumstances exiSt on the site? Yes 2- No
Is the site significantly disturbed (Atypical Situation)? Yes No
Is the area a potential Problem Area? Yes No
Remarks (Explain sample location, disturbances, problem areas):
Data plot is located in BE comer of wetland near wetland flags W5-4 and W5-5.
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Data Plot #:
Wetland:
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9
5
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Date: 8/18/2005
County: Jefferson
State: WA
Wetland Hydrology Indicators (Describe in Remarks):
Primary Inpicators:
Inundated
Saturated in Upper 12 inches
Saturated in Upper 18 inches (1989 method only)
Water Marks
Drift Lines
Sediment Deposits
Drainage Patterns in Wetlands
Secondary Indicators (2 or more required):
Oxidized Root Channels in Upper 12 inches
Water-Stained Leaves
Local Soil Survey Data
X Other (Explain in Remarks)
Remarks (As relevant, describe recent precipitation, hydrologic modifications, local variations, etc.):
Wetland delineated during dry season. Hydrology assumed based on the presence of hydrophytic vegetation, hydric soil, and
topographic location adjacent to ditch.
VEGETATION 1.11 Dominant species are checked)
Plant Species
% Cover Stratum
1. Dipsacus fullonum
2 . Equisetum telmaleia
3 . Juncus effusus
4 . Rosa spp.
5 . Rubus speclabilis
6 . Rubus ursinus
v 7. Alnus rubra
8 . Pseudolsuga menziesii
Percent of Dominant Species that are OBI., FAcw, orFAC
(except FAC-). Include species noted (*) as showing
morphological adaptations to wetlands. "T" indic~~~s. traCe.
Remarks (DeScribE! disturbances; relevant localvariatioriS, seasonaleffec1s,etc:):
Vegetation within the data plot is dominated by hydrophytic species.
Trace
Herb
Herb
Herb
Shrub
Shrub
Shrub
v
v
v
20
30
20
2
15
80
2
Tree
Tree
75
HYDROLOGY
Recorded Data (Describe in Remarks):
Stream, Lake, or Tide Gage
Aerial Photograph
Other
X No Recorded Data Available
Field Observations:
Depth of Surface Water:
Depth to Free Water in Pit:
Depth to Saturated Soil:
None
None
(in.)
(in.)
(in.)
>16
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Community ID:
Field Plot ID: 9
PFO
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.1L
.1L
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Indicator
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NL
FACW
FACW
NL
FAC+
FACU
FAC
FACU
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Parametrix
Data Plot #: 9
Wetland: 5
WETLAND DETERMINATION
(Modified from: 1987 ACOE Wetlands Delineation Manual)
Project/Site: Marrowstone Island Water System Phase 1
Date: 8/18/2005
SOIL
Soil Survey Data:
Map Unit Name: Whidbey gravelly sandy loam, 0-15% slopes
Drainage Class: well drained
Field Observations Confirm Mapped Type?
Taxonomy (Subgroup):
Profile Description:
Depth Horizon
(Inches) Designation
0-16 A
Entic Durochrepts
Yes No X
NA
Mottle
Abundance/Contrast
Texture, Concretions,
Rhizospheres, etc.
clay
Mottle Color
(Munsell Moist)
7.5YR 5/8
Matrix Color
(Munsell Moist)
1 OYR 211
Common/Medium/Prominent
Hydric Soil Indicators:
Histosol
Histic Epipedon
Sulfidic Odor
_ Probable Aquic Moisture Regime
Reducing Conditions
X Gleyed or Low-Chroma Colors
_ High Organic Content in Surface Layer
Remarks (Describe soil disturbances, local variations, etc.):
Low chroma matrix color and the presence of redox. features satisfies the hydric soil criterion.
X
Listed on Local Hydric Soils List
Listed on State Hydric Soils List
Listed on National Hydric Soils List
Aquic Moisture Regime
Organic Streaking in Sandy Soils
Mottles
Other (Explain in Remarks)
WETLAND DETERMINATION
Hydrophytic Vegetation Present?
Hydric Soils Present?
Wetland Hydrology Present?
Yes ~ No
Yes X No
Yes -1L. No
Is this Sampling Point Within a Wetland?
Yes 2-- No
Remarks (If applicable, explain any differences between 1987 and 1989 delineation results):
All three of the wetland criteria are present indicating that this area is within a wetland.
# if"']
· ~_... L -~-r
,.b~ . Co~
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APPENDIX 8
Photographs
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Wetland 1, east side of Schwartz Road, Marrowstone Island.
Wetland 2, west side of Schwartz Road, Marrowstone Island.
LOG ITEf\j;:
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Page._Co.'f oPG ~
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Wetland 9 to the right and Wetland 10 to the left of Meade Road,
Marrowstone Island.
LOG ITErVl
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Page _Co_50f (gt:J