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The State Environmental Policy Act (SEPA), chapter 43.21C RCW, requires all governmental agencies to consider the environmental
impacts of a proposal before malting decisions. An environmental impact statement (EIS) must be prepared for all proposals with
probable significant adverse impacts on the quality of the environment. The purpose of this checklist is to provide information to help
you and the agency identify impacts from your proposal (and to reduce or avoid impacts from the proposal, if it can be done) and to
help the agency decide whether an EIS is required.
Instructions for Applicants:
This environmental checklist asks you to describe some basic information about your proposal. Governmental agencies use this
checklist to determine whether the environmental impacts of your proposal are significant, requiring preparation of an EIS. Answer
the questions briefly, with the most precise information known, or give the best description you can.
You must answer each question accurately and carefully, to the best of your knowledge. In most cases, you should be able to answer
the questions from your own observations or project plans without the need to hire experts. If you really do not know the answer, or if
a question does not apply to your proposal, write "do not know" or does not apply". Complete answers to the questions now may
avoid unnecessary delays later.
Some questions ask about governmental regulations, such as zoning, shoreline, and landmark designations. Answer these questions if
you can. If you have problems, the governmental agencies can assist you.
The checklist questions apply to all parts of your proposal, even if you plan to do them over a period of time or on different parcels of
land. Attach any additional information that will help describe your proposal or its environmental effects. The agency to which you
submit this checklist may ask you to explain your answers or provide additional information reasonably related to determining if there
may be significant adverse impact.
Use of checklist for nonproject proposals:
For nonproject proposals complete this checklist and the supplemental sheet for nonproject actions (Part D). the leasd agency may
exclude any question for the environmental elements (Part B) which they determine do not contribute meaningfully to the analysis of
the proposalFor nonproject actions, the references in the checklist to the words "project," "applicant," and "property or site" should be
read as "proposer," and "affected geographic area," respectively.
1. Name of proposed project, if applicable: Cify of Edmonds 2015 Waterline Replaceinent Project
2. Name of applicant: Ryan Hague, PE, Capital Projects Nlar�ager
3. Address and phone number of applicant and contact person:
1215 1h Ave N
Ednionds, PVA 98020
4. Date checklist prepared: 12116116
5. Agency requesting checklist: City ofEdinonds
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6. Proposed timing or schedule (including phasing, if applicable): Summer, 20115 Construction
(STAFF COMMENTS)
7. Do you have any plans for future additions, expansion, or further activity related to or connected with this
proposal? If yes, explain.
No.
(STAFF COMMENTS)
8. List any environmental information you know about that has been prepared, or will be prepared, directly related
to this proposal
Norge.
9. Do you know whether applications are pending for governmental approvals of other proposals directly affecting
the property covered by your proposal? If yes, explain.
Yes Joint Aquatic Permit Application (JARPA) will be sent to the Washington Department offish and Wildlife (WDFW)
For a Hydrazdic Project Approval (HPA) permit.
(STAFF COMMENT
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10. List any government approvals or permits that will be needed for your proposal, if known.
The JARPA will be sent to WDFW for an HPA for proposed in -water work.
(STAFF CO
11. Give brief, complete description of your proposal, including the proposed uses and size of the project and site.
There are several questions later in this checklist that ask you to describe certain aspects of your proposal. You
do not need to repeat those answers on this page.
The 2015 Waterline Replacement Project will upgrade and/or replace approximately 9,400 linear feet of watermain
tln-oughout the City of Edmonds. Pipe replacement size will vary from 4 inches to 12 inches in diameter.
(STAFF COMMENT
12. Location of the proposal. Give sufficient information for a person to understand the precise location of your
proposed project, including a street address, if any, and section, township, and range, if known. If a proposal
would occur over a range of area, provide range or boundaries of the site(s). Provide legal description, site plan,
vicinity map, and topographic map, if reasonably available. While you should submit any plans required by the
agency, you are not required to duplicate maps or detailed plans submitted with any permit applications related
to this checklist.
The project will occur on public right-of-way at various locations throughout the City of Edmonds. See attached.
(STAFF COMMENTS)
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B. ENVIRONMENTAL ELEMENTS
1. Earth
a. General description of the site (circle one): Flat, rolling, hilly, steep slopes, mountainous, other:
Most sites are rolling. One is steep.
(STAFF COMMENTS)
b. What is the steepest slope on the site (approximate percent slope)?
40%
(STAFF COMMENTS)
C. What general types of soils are found on the site (for example, clay, sand, gravel, peat, and muck)? If you
know the classification of agricultural soils, specify them and note any agricultural land of longterm
commercial significance and whether the proposal results in removing any of these soils.
All sites contain Alderwood and Everett Gravelly Sandy Loam.
(STAFF COMMENTS)
d. Are there surface indications or history of unstable soils in the immediate vicinity? If so, describe.
None.
(STAFF COMMENTS)
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e. Describe the purpose, type, total area and approximate quantities and total affected area of any filling,
excavation, and grading proposed. Indicate source of fill.
No grading or filling are proposed.
(STAFF COMMENTS)
L Could erosion occur as a result of clearing, construction, or use? If so, generally describe.
Yes. Best Management Practices (BMPs) will be used to minimize erosion.
(STAFF COMMENTS)
g. About what percent of the site will be covered with impervious surfaces after project construction (for
example, asphalt or buildings)?
No increase.
(STAFF COMMENTS)
h. Proposed measures to reduce or control erosion, or other impacts to the earth, if any:
Best Management Practices (BMPs) will be used to minimize erosion.
(STAFF COMMENTS)
2. AIR
a. What types of emissions to the air would result from the proposal (i.e., dust, automobile, odors, and
industrial wood smoke) during construction and when the project is completed? If any, generally describe
and give approximate quantities if known.
Emissions from construction equipment such as diesel powered backhoes, trucks and other conventional
construction equipment.
(STAFF COMMENTS)
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b. Are there any off-site sources of emissions or odor that may effect your proposal? If so, generally describe.
None.
(STAFF COMMENTS)
C. Proposed measures to reduce or control emissions or other impacts to the, if any:
Appropriate emissions controls on construction vehicles.
(STAFF COMMENTS)
3. WATER
a. Surface:
(1) Is there any surface water body on or in the immediate vicinity of the site (including year-round and
seasonal streams, saltwater, lakes, ponds, and wetlands)? If yes, describe type and provide names. If
appropriate, state what stream or river it flows into.
Yes. Shell Creek, which flows directly into the Puget Sound.
(STAFF COMMENTS)
(2) Will the project require any work over, in, or adjacent to (within 200 feet) the described waters? If
yes, please describe and attach available plans.
Yes. The project will have a waterline that will cross above a culvert the conveys flow of Shell Creek on
Daley Street between 7th Ave N and 8`h Ave N. The crossing will have approximately 5' of vertical
clearance fi-om the top of existing culvert to the bottom of proposed waterline.
(STAFF COMMENTS)
(3) Estimate the amount of fill and dredge material that would be placed in or removed from surface
water or wetlands and indicate the area of the site that would be affected. Indicate the source of fill
material.
None.
(STAFF COMMENTS)
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(4) Will the proposal require surface water withdrawals or diversions? Give general description,
purpose, and approximate quantities if known.
No.
(STAFF COMMENTS)
(5) Does the proposal lie within a 100 -year floodplain? If so, note location on the site plan.
No.
(STAFF COMMENTS)
(6) Does the proposal involve any discharges of waste materials to surface waters? If so, describe the
type of waste and anticipated volume of discharge.
No.
(STAFF COMMENTS)
b. Ground:
(1) Will ground water be withdrawn from a well for drinking water or other purposes? If so, give a
general description of the well, proposed uses and approximate quantities withdrawn from the well
Will water be discharged to ground water? Give general description, purpose, and approximate
quantities if known.
No.
(STAFF COMMENTS)
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(2) Describe waste material that will be discharged into the ground from septic tanks or other sources, if
any (for example: Domestic sewage; industrial, containing the following chemicals...; agricultural;
etc.). Describe the general size of the system, the number of such systems, the number of houses to be
served (if applicable), or the number of animals or humans the system(s) are expected to serve.
None.
(STAFF COMMENTS)
C. Water Runoff (including storm water):
(1) Describe the source of runoff (including storm water) and method of collection and disposal, if any
(include quantities, if known). Where will this water flow? Will this water flow into other waters?
If so, describe.
Runoff from the project area will flow to its natural discharge area. BMPs will be in place during
construction to minimize the impact on receiving waters. The drainage pattern will not change during or
after construction.
(STAFF COMMENTS)
(2) Could waste materials enter ground or surface waters? If so, generally describe.
Construction BMPs will be in place to prevent any discharge.
(STAFF COMMENTS)
(3) Does the proposal alter or otherwise affect drainage patterns in the vicinity of the site? If so,
describe.
No.
(STAFF COMMENTS)
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d. Proposed measures to reduce or control surface, ground, runoff water, and drainage pattern impacts, if
any:
Construction BMPs will be employed to prevent any unacceptable discharge.
4. Plants
a.
(STAFF
Check or circle types of vegetation found on the site:
X deciduous tree: alder, maple, aspen, other:
X evergreen tree: fir, cedar, pine, other:
X shrubs
X grass _
pasture
X
crop or Grain
Orchards, vineyards or other permanent crops
wet soil plants: cattail, buttercup, bulrush, skunk cabbage, other:
water plants: water lily, eelgrass, milfoil, other
other types of vegetation: lawns and landscaping
(STAFF COMMENTS)
b. What kind and amount of vegetation will be removed or altered?
Lawn and landscaping shrubs will be removed and replaced as needed for water meter replacements.
(STAFF COMMENTS)
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C. List threatened or endangered species known to be on or near the site.
None.
(STAFF COMMENTS)
d. Proposed landscaping, use of native plants, or other materials to preserve or enhance vegetation on the site,
if any:
None.
(STAFF COMMENTS)
e. List all noxious weeds and invasive species known to be on or near the site.
None.
(STAFF COMMENTS)
5. Animals
a. List any birds and other animals that have been observed on or near the site or are known to be on or near
the site. Examples include:
birds: hawk, heron, eagle, songbirds, other:
mammals: deer, bear, elk, beaver, other: rodents, raccoon, possum, squirrel
fish: bass, salmon, trout, herring, shellfish, other: cutthroat
(STAFF COMMENTS)
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b. List any threatened or endangered species known to be on or near the site.
The following ES4-listed species occur in Puget Sound (in the vicinity of the project) but none of these species
will be affected by the proposed work because project effects will not extend to Puget Sound:
Puget Sound Chinook, Puget Sound Steelhead, Puget Sound Bull Trout, Southern Resident Killer Whale, Stellar
Sea Lion.
(STAFF COMMENTS)
C. Is the site part of a migration route? If so, explain.
No.
(STAFF COMMENTS)_
d. Proposed measures to preserve or enhance wildlife, if any:
None. Current site conditions will not be altered.
(STAFF COMMENTS)
e. List any invasive animal species known to be on or near the site.
None.
(STAFF COMMENTS)
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6. Energy and Natural Resources
.a. What kinds of energy (electric, natural gas, oil, wood stove, solar) will be used to meet the completed
project's energy needs? Describe whether it will be used for heating, manufacturing, etc.
Diesel fuel and gasoline for construction equipment.
(STAFF COMMENTS)
b. Would your project affect the potential use of solar energy by adjacent properties? If so, generally
describe.
No.
(STAFF COMMENTS)
C. What kinds of energy conservation features are included in the plans of this proposal? List other proposed
measures to reduce or control energy impacts, if any:
None.
(STAFF COMMENTS)
7. Environmental Health
a. Are there any environmental health hazards, including exposure to toxic chemicals, risk of fire and
explosion, spill, or hazardous waste, that could occur as a result of this proposal? If so describe.
No.
(STAFF COMMENTS)
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(1) Describe any known or possible contamination at the site from present or past uses.
None.
(STAFF
(2) Describe existing hazardous chemicals/conditions that might affect project development and design.
This includes undergrand hazardous liquid and gas transmission pipelines located within the project
area and in the vicinity.
PSE pas lines in the vicinity. Plans have been sent to PSE for identification and relocation of conflicting
lines.
(STAFF COMMENTS)
(3) Describe any toxic or hazardous chemicals that might be stored, used, or produced during the
project's development or constructions, or at any time during the operating life of the project.
Diesel and gasoline will be used for operation of construction vehicles.
(STAFF COMMENTS)
(4) Describe special emergency services that might be required.
None.
(STAFF COMMENTS)
(5) Proposed measures to reduce or control environmental health hazards, if any:
None.
(STAFF COMMENTS)
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b. Noise
(1) What types of noise exist in the area which may affect your project (for example: traffic, equipment,
operation, other)?
None.
(STAFF COMMENTS)
(2) What types and levels of noise would be created by or associated with the project on a short-term or
a long-term basis (for example: traffic, construction, operation, other)? Indicate what hours noise
would come from the site.
Normal construction noise within the bounds and timing of City Code.
(STAFF COMMENTS)
(3) Proposed measures to reduce or control noise impacts, if any:
Construction will be within the bounds and timingof f Ci Code.
(STAFF COMMENTS)
8. Land and Shoreline Use
a. What is the current use of the site and adjacent properties? Will the proposal affect current land uses on
nearby or adjacent properties? If so, describe.
Single family residential, City roads, State Roads, Qfty Parks.
(STAFF COMMENTS)
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b. Has the project site been used as working farmlands or working forest lands? If so, describe. How much
agricultural or forest land of long-term commercial significance will be converted to other uses as a result
of the proposal, if any? If resource lands have not been designated, how many acres in farmland or forest
land tax status will be converted to nonfrom or nonforest use?
No.
(STAFF COMMENTS)
(1) Will the proposal affect or be affected by surrounding working farm or forest land normal business
operations, such as oversize equipment access, the application of pesticides, tilling, and harvesting? If
so, how:
No.
(STAFF COMMENTS)
C. Describe any structures on the site.
Underground piping and underground vaults.
(STAFF COMMENTS)
d. Will any structures be demolished? If so, what?
None.
(STAFF COMMENTS)
e. What is the current zoning classification of the site?
None. Site is entirely within City Rights -of -Way.
(STAFF COMMENTS) i� . , ,,
l �..�2
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L What is the current comprehensive plan designation of the site?
None. Site is entirely within City Rights -of -Way.
g. If applicable, what is the current shoreline master plan designation of the site?
N/A
IN
Has any part of the site been classified critical area by the city? If so, specify.
Sites numbers 2 4 7 and 8 all are located in whole or in part within Critical Areas.
See attached sheets fi•om the Draft Critical Areas Report for additional information.
(STAFF COMMENTS)
Approximately how many people would reside or work in the completed project?
None.
(STAFF COMMENTS)
j. Approximately how many people would the completed project displace?
None.
(STAFF COMMENTS)
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k. Proposed measures to avoid or reduce displacement impacts, if any:
None.
(STAFF
1. Proposed measures to ensure the proposal is compatible with existing and projected land uses and plans, if
any:
The project would improve water pressure for all residents and businesses usingthe hesystem.
(STAFF COMMENTS)
M. Proposed measures to ensure the proposal is compatible with nearby agricultural and forest lands of long-
term commercial significance, if any:
None.
(STAFF COMMENTS)
9. Housing
a. Approximately how many units would be provided, if any? Indicate whether high, middle, or low-income
housing.
None.
(STAFF COMMENTS)
b. Approximately how many units, if any would be eliminated? Indicate whether high, middle, or low-income
housing.
None.
(STAFF COMMENTS)
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C. Proposed measures to reduce or control housing impacts, if any:
None.
(STAFF COMMENTS)
10. Aesthetics
a. What is the tallest height of any proposed structure(s), not including antennas; what is the principle
exterior building material(s) proposed?
Ground level.
(STAFF COMMENTS)
b. What views in the immediate vicinity would be altered or obstructed?
None.
(STAFF COMMENTS)
C. Proposed measures to reduce or control aesthetic impacts, if any:
None.
(STAFF COMMENTS)
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11. Light and Glare
a. What type of light or glare will the proposal produce? What time of day would it mainly occur?
None.
(STAFF COMMENTS)
b. Could light or glare from the finished project be a safety hazard or interfere with views?
No.
(STAFF COMMENTS)
C. What existing off-site sources of light or glare may affect your proposal?
None.
(STAFF COMMENTS)
d. Proposed measures to reduce or control light and glare impacts, if any:
None.
(STAFF COMMENTS)
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12. Recreation
a. What designated and informal recreational opportunities are in the immediate vicinity?
Boating and fishing in the Puget Sound Hiking and other outdoor recreation (basketball, softball, etc) in City
Parks.
(STAFF COMMENTS)
b. Would the proposed project displace any existing recreation uses? If so, describe.
No.
(STAFF COMMENTS)
C. Proposed measures to reduce or control impacts on recreation, including recreation opportunities to be
provided by the project or applicant, if any:
None.
(STAFF COMMENTS)
13. Historic and Cultural Preservation
a. Are there any buildings, structures, or sites located on or near the site that are over 45 years old listed in,
or eligible for listing in national, state, or local preservation registers located on or near the site? If so,
specifically describe.
None.
(STAFF COMMENTS)
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b. Are there any landmarks, features, or other evidence of Indian or historic use or occupation? This may
include human burials or old cemeteries. Are there any material evidence, artifacts, or areas of cultural
importance on or near the site? Please list any professional studies conducted at the site to identify such
resources.
No.
(STAFF COMMENTS)
C. Describe the methods used to assess the potential impacts to cultural and historic resources on or near the
project site. Examples include consultation with tribes and the Department of Archeology and Historic
Preservation, archaeological surveys, historic maps, GIS date, etc.
Project is entirely within existing ROW and will not disturb areas that haven't been previously disturbed, A review
if the WISAARD indicates the following: The Parmelee House, close to Site 1 (Puget Drive) is on the State
Historic Register. This property will not be impacted by the project. Brackett's Landing, also on the State Historic
Register, is in the general vicinity of Site 5. This will not be impacted by the project. An EZ -1 form has been
submitted to DAHP and the City will follow any reconnnendations made as a result of this correspondence.
(STAFF COMMENT
d. Proposed measures to avoid, minimize, or compensate for loss, changes to, and disturbance to resources.
Please include plans for the above and any permits that may be required.
None at this time. Any reconunendations made by DAHP will be followed.
14. Transportation
a. Identify public streets and highways serving the site or affected geographic area, and describe proposed
access to the existing street system. Show on site plans, if any.
All sites are within public streets. Site 9 involves the installation of a PRV in the parkway of Meadowdale Beach
Road. This will be served by Meadowdale Beach Road.
(STAFF COMM
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b. Is the site or affected geographic area currently served by public transit? If so, generally describe. If not,
what is the approximate distance to the nearest transit stop?
Yes.
(STAFF COMMENTS)
C. How many additional parking spaces would the completed project or nonproject proposal have? How
many would the project or proposal eliminate?
No new or eliminated parking spaces.
(STAFF COMMENTS)
d. Will the proposal require any new or improvements to existing roads, streets, pedestrian, bicycle or state
transportation facilityes not including driveways? If so, generally describe (indicate whether public or
private).
None.
(STAFF COMMENTS)
e. Will the project or proposal use (or occur in the immediate vicinity of) water, rail, or air transportation? If
so, generally describe.
Site 5 is within BNSF Railroad Right -of -Way and close to a feM terminal.
(STAFF COMMENTS)
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How many vehicular trips per day would be generated by the completed project? If known, indicate when
peak volumes would occur and what percentage of the volume would be trucks (such as commercial and
anpassenger vehicles). What data or transporation models were used to make these estimates?
None.
(STAFF COMMENTS)
g. Will the proposal interfere with, affect or be affected by the movement of agricultural and forest products
on roads or streets in the area? If so, generally describe.
No.
(STAFF COMMENTS)
h. Proposed measures to reduce or control transportation impacts, if any:
None.
(STAFF COMMENTS)
15. Public Services
a. Would the project result in an increased need for public services (for example: fire protection, police
protection, public transit, health care, schools, other)? If so, generally describe.
No.
(STAFF COMMENTS)
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b. Proposed measures to reduce or control direct impacts on public services, if any:
None.
(STAFF COMMENTS)
16. Utilities
a. Circle utilities currently available at the site: electricity, natural gas, water, refuse service, telephone,
sanitary sewer, septic system, other:
Each listed utility is available at one or more sites.
(STAFF COMMENTS)
b. Describe the utilities that are proposed for the project, the utility providing the service, and the general
construction activities on the site or in the immediate vicinity which might be needed.
Project will install new water lines.
(STAFF COMMENTS)
I declare under penalty of perjury laws that the above answers are true and correct to the best of my knowledge. I understand
that the lead agency is relying on them to make its decision.
E;
Signature of Proponent Date Submitted
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CRITICAL AREAS REPORT
CITY OF EDMONDS
2015 WATERLINE REPLACEMENT
December 22, 2014
PART i - RESPONSES O CODE
GA �
REQUIREMENTSAREA REPORT
A. Introduction
The City of Edmonds (City) is the water purveyor for the residents of the City. It operates,
maintains, replaces and expands the water system to maintain public health, system reliability
and to meet current and future water use demands of its customers. In order to fulfill its
mission for providing a reliable water supply that meets present and future demand, the City
plans to construct the 2015 Waterline Replacement project at 11 locations within the City. Four
of these locations occur partially within geologically hazardous critical areas. Figure i is a map
showing the general locations of the four sites.
These four sites are designated as follows:
Site No. 2, Sierra Place — A portion of this site is located within undeveloped steep slope in the
public right-of-way (ROW) between the paved cul-de-sac at the end of Sierra Place (west extent)
and 12th Avenue North (east extent) (Figure 2).
Site No. 4, Daley Street — A portion of this site is located within the steep slope in the Daley
Street public ROW, between 81h Avenue North (west extent) and 831 Daley Street (east extent)
(Figure 3).
Site No. 7, Edmonds Street - A portion of this site is located within the steep slope along the
Edmonds Street public ROW at the southeast side of Hummingbird Parlc (Figure 4).
Site No. 8, 172nd Street SW - A portion of this site is located within the steep slope in the
undeveloped public ROW along 172nd Street Southwest, between Meadowdale Beach Road (west
extent) and 69th Place West (east extent) (Figure 5).
Site No. 2 is located within an erosion hazard area and has slopes on the order of 30 percent,
with a total topographic relief of approximately 15 feet (see Figure 6). This Site is vegetated with
blackberry vines, grasses, and other herbaceous vegetation, along with evergreen and deciduous
trees. Site No. 2 is bordered to the east by an easement and single family residences, to the
north by undeveloped land, to the west by Sierra Place developed ROW, and to the south by
single family residences. Portions of Site No. 2, within the area of the cul de -sac, are within the
buffer of a category 3 wetland; but the work within the slope area is just outside the wetland
buffer.
Site No. 2 meets the definition of an erosion hazard area because it is underlain by Alderwood-
Everett soils (15-30% Slopes). Sites mapped by the NRCS with these soils meet the criteria for
erosion hazard areas per EMC 23.80.020. There currently exists a 4" CI water main pipe within
the landslide hazard area. The City plans to abandon the 4" CI, in place, and use the top 200
feet as a sleeve through which a 1.5 inch diameter copper water service pipe will be sliplined to
serve the properties at 701 12th Avenue N. and at 1139 Sierra Place. Design drawings for the
CRITICAL AREAS REPORT
CITY OF EDMONDS
2015 WATERLINE REPLACEMENT
December 22, 2014
work at this site are identified as drawings C-2.1 and C-2.2 in Part 2 of this CAR. Because the
slope itself will not be disturbed by construction activities, except for shallow trenching of two f-
inch diameter copper water services, erosion control measures are shown on the design
drawings and a separate erosion control plan is not provided.
Site No. 4 has slopes of 40 to 70 percent with a total height of 58 feet (see Figure 7). This Site is
vegetated with blackberry vines, grasses, and other herbaceous vegetation, along with sparse
evergreen and deciduous trees. Site No. 4 is bordered to the east by Daley Street, to the north by
single family residences and undeveloped land, to the west by 8th Avenue North and Daley
Street, and to the south by single family residences.
Site No. 4 meets the definition of a landslide hazard area because its slope is 40 to 70%, which
exceeds the 40% threshold per EMC 23.80.020. The NRCS maps indicate that this site is
underlain by Alderwood-Urban Land soils (8-15% Slopes), which do not meet the erosion hazard
criteria per the EMC. However, based on the observed slope conditions and granular nature of
the soils at this site, it is our opinion that Site No. 4 meets the intent of the EMC definition of
erosion hazard area. There currently exists a 4" CI water main pipe within the landslide hazard
area. The City plans to abandon the 4" CI, in place, and to install an 8 -inch diameter HDPE or
fusable PVC water main by directional drilling. 'Design drawings for the work at this site are
identified as drawings C-4.3 and C-4.4 in Part 2 of this CAR. Because the slope itself will not be
disturbed by construction activities, except; for shallow trenching of two 1 -inch diameter copper
water services near the top of the slope, a separate erosion control plan is not provided.
Site No. 7 has slopes of 45 to 53 percent with a total height of 30 feet (see Figure 8). This Site is
vegetated with blackberry vines and grasses with sparse deciduous and evergreen trees in the
general vicinity. Site No. 7 is bordered to the east by Edmonds Street, to the north and west by
Hummingbird Park, to the south by single family residences.
Site No. 7 meets the definition of an erosion hazard area because it is underlain by Alderwood-
Everett soils (25-70% Slopes). Sites mapped by the NRCS with these soils meet the criteria for
erosion hazard areas per EMC 23.80.020. This site also meets the definition of a landslide
hazard area because its slope is 45 to 53%, which exceeds the 4o% threshold per EMC
23.80.020. There currently is no water main pipe within the landslide hazard area. The City
plans to install an 8 -inch diameter ductile iron (restrained joint) water main by conventional
trenching. Design drawings for the work at this site are identified as drawings C-7.1 and C-7.2 in
Part 2 of this CAR. Because this site is defined as an erosion hazard area, an erosion control
drawing is also included in Part 2 of this CAR and is identified as drawing C-7.3.
Site No. 8 has slopes of 21 to 26 percent with a total height of approximately 70 feet (see Figure
9). Sewer and power lines extend through this area and the fill materials include native sand
with gravel along with larger quarry rock. This Site is vegetated with blackberry vines, ivy,
grasses, and ferns; along with Alder, Cedar, Hemlock, and Fir trees. Site No. 8 is bordered to
the east by 172nd Street Southwest developed ROW, to the north by single family residences, to
the south by single family residences, and to the west by Meadowdale Beach Road.
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CRITICAL AREAS REPORT
CITY OF EDMONDS
2015 WATERLINE REPLACEMENT
December 22, 2014
Site No. 8 meets the definition of an erosion hazard area because it is underlain by Alderwood-
Everett soils (25-70% Slopes). Sites mapped by the NRCS with these soils meet the criteria for
erosion hazard areas per EMC 23.80.020. There currently is no water main pipe within the
landslide hazard area. The City plans to install an 8 -inch diameter ductile iron (restrained joint)
water main by conventional trenching. Design drawings for the work at this site are identified
as drawings C-8.1 and C-8.2 in Appendix A of this CAR. Because this site is defined as an
erosion hazard area, an erosion control drawing is also included in Part 2 of this CAR and is
identified as drawing C-8.4.
The construction work will be performed by a private contractor under a contract with the City.
The identity of the private contractor will be unknown until the contract is publically bid and the
lowest responsible bidder is identified and awarded the construction contract.
B. Report Content and Organization
This critical area report (CAR) consists of this first "report section (Part 1), which includes
specific responses to content and questions described within the City of Edmonds Municipal
Code (EMC), and Part 2, which consists of project drawings, and Part 3, which is a geological
investigation report (GIR).
This CAR is formatted and organized in accordance' with the sections of the Edmonds Municipal
Code (EMC) that govern critical area report content requirements, specifically:
• EMC 23.40.ogoD - Minimum Report Contents
• EMC 23.80.050 -Special Study and Report Requirement -Geologically Hazardous Areas
Additionally, this report includes written responses to EMC requirements described in the
following sections of the EMC:
EMC 23.40.120 - Mitigation Sequencing
EMC 23.80.o6o - Development standards — General requirements.
EMC 23.80.070 - Development standards — Specific hazards.
C. EMC 23.40.ogoD Minimum Report Contents
In this section, we present our responses to the specific criteria from the City of Edmonds
Municipal Code (section 23.40.ogoD) pertaining to critical area report minimum contents.
D. Minimum Report Contents
1. The name and contact information of the applicant, a description of the proposal, and
identification of the permit requested;
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