SEPA Checklist.pdfPurpose of Checklist:
The State Environmental Policy Act (SEPA), chapter 43.21C RCW, requires all governmental agencies to consider the environmental
impacts of a proposal before making 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.
NOTE: Projects generating new traffic will be required to submit a Traffic Study prepared by a licensed Professional Civil Engineer.
Specific requirements for the Traffic Study may vary depending upon the project, and will be provided by the City Engineer upon
request. Please contact the Engineering Division at 425-771-0220 for specific study requirements. City review of the Traffic Study
may require assessment of the "Development Project Peer Review" fee of $45 plus the cost of the review.
Use of checklist for nnonproject proposals:
Complete this checklist for nonproject proposals, even though questions may be answered "does not apply." IN ADDITION, complete
the SUPPLEMENTAL SHEET FOR NONPROJECT ACTIONS (part D).
For 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.
I fl -:ill :ZI111►1 E
1. Name of proposed project, if applicable: 12°i Ave N. Storm Drainage Improvement Project
2. Name of applicant: Jerry Shuster, P.E, Storinvater Engineering Program Manager
City of Edmonds
3. Address and phone number of applicant and contact person:
1215"' Ave North, Echnonds, WA 98020
4. Date checklist prepared: March 12, 2010
5. Agency requesting checklist: None.
6. Proposed timing or schedule (including phasing, if applicable):
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The project is scheduled for Sunnner/Fall 2010
7. Do you have any plans for future additions, expansion, or further activity related to or connected with this
proposal? If yes, explain.
No
8. List any environmental information you know about that has been prepared, or will be prepared, directly related
to this proposal.
See attache geotechnical report and outfall analysis by a Biologist.
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.
No
10. List any government approvals or permits that will be needed for your proposal, if known.
None.
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.
This project will replace a City -owned storm pipe that currently collects runoff form 12r1i Ave N. and conveys it under a
private residence. The pipe was installed in the early 1960s and has shown some joint separation. The pipe discharges
onto a steep hillside and has caused some erosion during extreme storm events. The prospect would abandon the old
pipe in-place ill with grout) and install a new pipe via trenchless technology along the southern boundary of 1025-12t1r
Ave N. (not under a structure). The outfall for the new pipe will be into a `bubble up " catch basin that will dissipate the
energy of the flow and it will spill onto a rock pad that will direct the flow into an existing ditch system. The City will
acquire an easement from 1025 12i1' Ave N. for the installed system (all f which will be on this one property.
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.
1025 -12th Ave N. (see enclosed draft drawings)
TO BE COMPLETED BY APPLICANT
B. ENVIRONMENTAL ELEMENTS
1. Earth
a. General description of the site (circle one): Flat, rolling, hilly, steep slopes, mountainous, other:
b. What is the steepest slope on the site (approximate percent slope)?
Greater than 40 %.
C. What general types of soils are found on the site (for example, clay, sand, gravel, peat, mucic)? If you know
the classification of agricultural soils, specify them and note any prime farmland.
The attached geotechnical report describes approximately 3.5 to 6 feet of fill underlain by Alder wood or till soils.
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d. Are there surface indications or history of unstable soils in the immediate vicinity? If so, describe.
The steep hillside seen some runoff -induces erosion during extreme storm events. This project will reduce these
erosional effects. The attached geotechnical report describes shallow surfcial creep due to the steepness of the
slope. The report also says that this shallow sitrficial creek is not anticipated to impact the global stability of the
slope.
e. Describe the purpose, type and approximate quantities of any filling or grading proposed. Indicate source
of fill.
Not applicable
f. 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 the erosion. The trenchless technology planned
to install the pipe is a BMP for pipe replacement on steep slopes.
g. About what percent of the site will be covered with impervious surfaces after project construction (for
example, asphalt or buildings)?
No increase.
It. Proposed measures to reduce or control erosion, or other impacts to the earth, if any:
BMPs will be used during construction to minimize or eliminate erosion and other impacts.
2. AIR
a. What types of emissions to the air would result from the proposal (i.e., dust, automobile, odors, industrial
wood smoke) during construction and when the project is completed? If any, generally describe and give
approximate quantities if known.
Emission from construction equipment such as diesel powered backhoes, trucks, and pipe pullers. .
b. Are there any off-site sources of emissions or odor that may effect your proposal? If so, generally describe.
No.
C. Proposed measures to reduce or control emissions or other impacts to the, if any:
Appropriate emission controls on construction vehicles.
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, wetlands)? If yes, describe type and provide names. If
appropriate, state what stream or river it flows into.
No.
(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.
Not Applicable.
(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.
Not Applicable.
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(4) Will the proposal require surface water withdrawals or diversions? Give general description,
purpose, and approximate quantities if known.
None.
(5) Does the proposal lie within a 100 -year floodplain? If so, note location on the site plan.
No.
(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.
b. Ground:
(1) Will ground water be withdrawn, or will water be discharged to ground water? Give general
description, purpose, and approximate quantities if known.
No
(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.
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 site collects in a ditch at the toe of the slope and travels wet tot eh City stor in system on
Olympic Ave. The drainage pattern will not change during or after construction.
(2) Could waste materials enter ground or surface waters? If so, generally describe.
Construction BMPs will be employed to prevent any discharge.
d. Proposed measures to reduce or control surface, ground, and runoff water impacts, if any:
Construction BMPs will be employed to prevent any discharge.
4. Plants
a.
Check or circle types of vegetation found on the site: (see attached report from Landau Associates)
deciduous tree: alder, maple, aspen, other:
X
X
evergreen tree: fir, cedar, pine, other:
shrubs
grass
pasture
crop or grain
X wet soil plants: cattail, buttercup, bulrush, skunk cabbage, other:
water plants: water lily, eelgrass, milfoil, other:
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other types of vegetation:
b. What kind and amount of vegetation will be removed or altered?
Minor clearing around the oigfall.
C. List threatened or endangered species known to be on or near the site.
None.
d. Proposed landscaping, use of native plants, or other materials to preserve or enhance vegetation on the site,
if any:
None.
5. Animals
a. Check or circle any birds and animals which have been observed on or near the site or are known to be on
or near the site:
birds: hawk, heron, eagle, songbirds, other:
mammals: deer, bear, elle, beaver, other: rodents, raccoon, possum
fish: bass, salmon, trout, herring, shellfish, other:
b. List any threatened or endangered species known to be on or near the site.
None.
C. Is the site part of a migration route? If so, explain.
Pacific Flyway.
d. Proposed measures to preserve or enhance wildlife, if any:
Not Applicable.
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.
Not Applicable.
b. Would your project affect the potential use of solar energy by adjacent properties? If so, generally
describe.
Not Applicable.
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:
Not Applicable.
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.
(1) Describe special emergency services that might be required.
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None
(2) Proposed measures to reduce or control environmental health hazards, if any:
None.
b. Noise
(1) What types of noise exist in the area which may affect your project (for example: traffic, equipment,
operation, other)?
None.
(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.
(3) Proposed measures to reduce or control noise impacts, if any:
Construction will be within the bounds and timing of City Code
8. Land and Shoreline Use
a. What is the current use of the site and adjacent properties?
Single family residential and one vacant lot.
b. Has the site been used for agriculture? If so, describe.
None.
C. Describe any structures on the site.
Single-family home.
d. Will any structures be demolished? If so, what?
No.
e. What is the current zoning classification of the site?
RS -12.
f. What is the current comprehensive plan designation of the site?
Single family/Resource —RS -12/20.
g. If applicable, what is the current shoreline master plan designation of the site?
Not Applicable.
h. Has any part of the site been classified as an "environmentally sensitive" area? If so, specify.
Landslide and Erosion Hazard area.
i. Approximately how many people would reside or work in the completed project?
None.
j. Approximately how many people would the completed project displace?
None.
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k. Proposed measures to avoid or reduce displacement impacts, if any:
None.
1. Proposed measures to ensure the proposal is compatible with existing and projected land uses and plans, if
any:
The project will replace an aging pipe that can contribute to slope erosion in extreme weather events with a new
pipe that will reduce slope erosion and maintain the same hydrologic farnction in the area (see Landau Associates
report)
9. Housing
a. Approximately how many units would be provided, if any? Indicate whether high, middle, or low-income
housing.
None.
b. Approximately how many units, if any would be eliminated? Indicate whether high, middle, or low-income
housing.
None.
C. Proposed measures to reduce or control housing impacts, if any:
Not Applicable.
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
b. What views in the immediate vicinity would be altered or obstructed?
None.
C. Proposed measures to reduce or control aesthetic impacts, if any:
Not Applicable.
11. Light and Glare
a. What type of light or glare will the proposal produce? What time of day would it mainly occur?
None.
b. Could light or glare from the finished project be a safety hazard or interfere with views?
No.
C. What existing off-site sources of light or glare may affect your proposal?
None.
d. Proposed measures to reduce or control light and glare impacts, if any:
Not Applicable.
12. Recreation
a. What designated and informal recreational opportunities are in the immediate vicinity?
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None.
b. Would the proposed project displace any existing recreation uses? If so, describe.
No.
C. Proposed measures to reduce or control impacts on recreation, including recreation opportunities to be
provided by the project or applicant, if any:
None.
13. Historic and Cultural Preservation
a. Are there any places or objects listed on, or proposed for, national, state, or local preservation registers
known to be on or next to the site? If so, generally describe.
None known.
b. Generally describe any landmarks or evidence of historic, archaeological, scientific, or cultural importance
known to be on or next to the site.
None.
C. Proposed measures to reduce or control impacts, if any:
If any historical or cultural artifacts are discovered during the project, work will be stopped and appropriate
local state Federal and Tribal authorities will be contacted.
14. Transportation
a. Identify public streets and highways serving the site, and describe proposed access to the existing street
system. Show on site plans, if any.
The site is served from the east end by 12"' Ave N., a city -owned right-of-way. The site is sewed fi•oin the west by
a private road, owned by multiple adjacent property owners that connects to Olympic Ave, a city -owned right-of-
way.
b. Is site currently served by public transit? If no, what is the approximate distance to the nearest transit
stop?
No.
C. How many parking spaces would the completed project have? How many would the project eliminate?
Not Applicable.
d. Will the proposal require any new roads or streets, or improvements to existing roads or streets, not
including driveways? If so, generally describe (indicate whether public or private).
No.
e. Will the project use (or occur in the immediate vicinity of) water, rail, or air transportation? If so,
generally describe.
No.
L How many vehicular trips per day would be generated by the completed project? If known, indicate when
peak volumes would occur.
Not Applicable.
g. Proposed measures to reduce or control transportation impacts, if any:
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Construction signage and traffic control.
15. Public Services
a. Would the project result in an increased need for public services (for example: fire protection, police
protection, health care, schools, other)? If so, generally describe.
No..
b. Proposed measures to reduce or control direct impacts on public services, if any:
Not Applicable.
16. Utilities
a. Circle utilities currently available at the site: electricity, natural gas, water, refuse service, telephone,
sanitary sewer, septic system, other:
See underlined.
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.
New storm drain system owned by City stornnvater utility..
The above answerse hue and complete to the best of my knowledge. I understand that the lead agency is relying on them to
make(itd'd cisiol
�Signature of Proponent Date Submitted
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