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SEPA Environmental checklist (WAC 197-11-960) July 2016 Page 1 of 22
SEPA ENVIRONMENTAL CHECKLIST
Purpose of checklist: Governmental agencies use this checklist to help determine whether the environmental impacts of your
proposal are significant. This information is also helpful to determine if available avoidance, minimization
or compensatory mitigation measures will address the probable significant impacts or if an environmental
impact statement will be prepared to further analyze the proposal.
Instructions for applicants: This environmental checklist asks you to describe some basic information about your proposal. Please
answer each question accurately and carefully, to the best of your knowledge. You may need to consult
with an agency specialist or private consultant for some questions. You may use “not applicable” or
"does not apply" only when you can explain why it does not apply and not when the answer is unknown.
You may also attach or incorporate by reference additional studies reports. Complete and accurate
answers to these questions often avoid delays with the SEPA process as well as later in the decision-
making process.
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.
Instructions for Lead Agencies:
Please adjust the format of this template as needed. Additional information may be necessary to
evaluate the existing environment, all interrelated aspects of the proposal and an analysis of adverse
impacts. The checklist is considered the first but not necessarily the only source of information needed to
make an adequate threshold determination. Once a threshold determination is made, the lead agency is
responsible for the completeness and accuracy of the checklist and other supporting documents.
Use of checklist for nonproject proposals: For nonproject proposals (such as ordinances, regulations, plans and programs), complete the applicable
parts of sections A and B plus the SUPPLEMENTAL SHEET FOR NONPROJECT ACTIONS (part D). Please
completely answer all questions that apply and note that the words "project," "applicant," and "property or
site" should be read as "proposal," "proponent," and "affected geographic area," respectively. The lead
agency may exclude (for non-projects) questions in Part B - Environmental Elements –that do not
contribute meaningfully to the analysis of the proposal.
A. Background [HELP]
1. Name of proposed project, if applicable: City of Renton 2021 Long Range Wastewater
Management Plan
2. Name of applicant: City of Renton – Utility Systems Division
RECEIVED
06/01/2021 BGillia
PLANNING DIVISION
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3. Address and phone number of applicant and contact person:
Ann Fowler, CIP Project Manager, Wastewater Utility
1055 S Grady Way, Renton, WA 98057
425-430-7211
afowler@rentonwa.gov
4. Date checklist prepared: April 29, 2021
5. Agency requesting checklist: City of Renton
6. Proposed timing or schedule (including phasing, if applicable):
The City of Renton 2021 Long Range Wastewater Management Plan is scheduled for
adoption in 2021.
7. Do you have any plans for future additions, expansion, or further activity related to or
connected with this proposal? If yes, explain.
No. This Plan lists capital improvement projects planned by the City within the next 10
years and long-term projects over the next 20 years. Proposed locations are shown in the
Plan.
8. List any environmental information you know about that has been prepared, or will be
prepared, directly related to this proposal.
Depending upon the scope of the projects proposed in the Plan, an individual
environmental checklist and threshold determination would be completed as specified
projects are proposed for construction.
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.
At this time, there are no known pending applications for general applicability related to
the area covered by the sewer system. There may be applications pending related to
improvements to the sewer system such as various on-going plats and developer
extensions occurring within the sewer service area. The City plans to adopt the capital
improvement plan outlined in this document as part of the City’s 10-year capital
improvements plan.
10. List any government approvals or permits that will be needed for your proposal, if known.
The 2021 Long-Range Wastewater Management Plan will need to be approved by the
Renton City Council and the Washington State Department of Ecology. The King County
Utilities Technical Review Committee (UTRC) will review the plan and make
recommendations to the Executive and County Council as to the consistency of such
SEPA Environmental checklist (WAC 197-11-960) July 2016 Page 3 of 22
items with adopted county policies and codes. King County will review and approve
franchises to allow the construction of sewer facilities in county rights-of-way.
11. Give brief, complete description of your proposal, including the proposed uses and the 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. (Lead agencies may modify this form to include additional specific information on project
description.)
The 2021 Long-Range Wastewater Management Plan (LRWWMP) addresses policies,
criteria, assumptions and recommendations for the City's planning area. The major
purpose of the Plan is to provide a long range plan for facility improvements necessary
to serve the estimated population at saturation. The Plan addresses facility reliability,
public health, groundwater and environmental protection, operation and maintenance,
and financing issues. The plan also addresses the need to expand Renton’s sewer
service area into its Urban Growth Area as the appropriate provider of the urban service
per the King County Countywide Planning Policies.
This checklist does not address the specific projects addressed in the five year capital
improvement program. This is a programmatic checklist and does not address any site
specific conditions. These conditions as well as the associated impacts will be
discussed in the SEPA reviews of each project.
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 the range or
boundaries of the site(s). Provide a 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 area covered by this comprehensive sewer system plan is the sewer service area as
shown in Figure 2.1 of the LRWWMP. Renton has entered into boundary agreements
with most of the sewer service providers adjacent to the City. These service boundaries
are established and are not generally altered by annexations.
B. Environmental Elements [HELP]
1. Earth [help] a. General description of the site:
(circle one): Flat, rolling, hilly, steep slopes, mountainous, other _____________
The sewer service area includes steep slopes, several hills, a plateau, and river valley
areas.
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b. What is the steepest slope on the site (approximate percent slope)?
The slopes vary from flat (zero percent) to very steep (over 40 percent). Steep slopes exist
along the Maple Valley Highway to the north and south of the Cedar River Valley (southern
edge of Renton Highlands; northern edge of Scenic Hill and Rolling Hills), along the eastern
side of I-405 (eastern edge of the Renton Highlands), along the southern (SR 900) and eastern
(Rainier Ave N) edges of Renton West Hill, along the western (SR 167) and northern (I-405)
edges of Talbot Hill and the western edge (I-405) of Scenic Hill.
c. What general types of soils are found on the site (for example, clay, sand, gravel, peat,
muck)? If you know the classification of agricultural soils, specify them and note any
agricultural land of long-term commercial significance and whether the proposal results in
removing any of these soils.
According to the USDA’s Web Soil Survey, the main soil types within the water service
area include: Alderwood gravelly sandy loam, Alderwood and Kitsap soils, Arents-
Alderwood material, and Indianola loamy sand. Alderwood gravelly sandy loam
makes up over 30% of the water service area and is considered prime farmland. Using
engineering classifications: there is a wide variety of highly variable glacial deposits in
the water service area that include clay, silt, sand, gravel, cobbles, and boulders. In
the river valley areas, there is a variety of modern alluvium and undifferentiated deltaic
deposits. Adoption of the LRWWMP will not itself result in the removal of agricultural
soil. Specific projects that are subject to environmental review will be evaluated for
their impact to agricultural soils prior to implementation.
d. Are there surface indications or history of unstable soils in the immediate vicinity? If so,
describe.
Within the City, there are areas of unstable soils including steep slopes and historic coal
mines. Some alluvial deposits in the Cedar River Valley and old Black River Valley may be
subject to liquefaction during seismic events. Sensitive areas are mapped by the City and are
subject to regulation under Renton Municipal Code Title IV, Development Regulations. Specific
projects that are subject to environmental review will be evaluated for their soil conditions prior
to implementation.
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.
N/A, non-project action. However, the sewer system construction projects identified
in the LRWWMP will require excavation and grading of an undetermined quantity of
material. Specific projects will be subject to individual environmental review before
implementation.
f. Could erosion occur as a result of clearing, construction, or use? If so, generally describe.
N/A, non-project action. Adoption of the LRWWMP will not itself result in the clearing,
construction, or use of soils, however, the Plan’s programs and projects may result in
erosion from construction. Specific projects that are subject to environmental review
will be evaluated for erosion potential prior to implementation.
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g. About what percent of the site will be covered with impervious surfaces after project
construction (for example, asphalt or buildings)?
N/A, non-project action. Specific projects will be subject to individual environmental review
before implementation.
h. Proposed measures to reduce or control erosion, or other impacts to the earth, if any:
N/A, non-project action. Where applicable, best management practices, along with erosion
and sedimentation control measures, will be used in all areas of potential erosion.
Specific projects will be subject to individual environmental review before
implementation.
2. Air [help] a. What types of emissions to the air would result from the proposal during construction,
operation, and maintenance when the project is completed? If any, generally describe and
give approximate quantities if known.
N/A, non-project action. Adoption of the LRWWMP will not itself result in air
emissions, however, the Plan’s programs and projects may be a source of emissions
from construction activity and increased usage of generators during maintenance,
testing, and power outages events. Specific projects that are subject to
environmental review will be evaluated for air emissions potential prior to
implementation.
b. Are there any off-site sources of emissions or odor that may affect your proposal? If so,
generally describe.
N/A, non-project action. Specific projects that are subject to environmental review
will be evaluated for off-site sources of emissions prior to implementation.
c. Proposed measures to reduce or control emissions or other impacts to air, if any:
N/A, non-project action. However, standard emissions controls for construction
equipment will be utilized during construction of projects recommended by this Plan.
Specific projects that are subject to environmental review will be evaluated for their
potential impact and corresponding mitigation measures prior to implementation.
3. Water [help] a. Surface Water: [help] 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.
There are multiple surface water bodies within the sewer system area. The
northwest boundary of the sewer service area is the shoreline of Lake
Washington. The rivers and streams that run through the sewer service area
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include the Cedar River, Green River, May Creek, and Springbrook Creek. The
Cedar River is tributary to Lake Washington and the Green River is a tributary to
Puget Sound. May Creek flows into Lake Washington and Springbrook Creek
flows into the Green River. All water bodies and wetland boundaries are cataloged
in the City’s GIS (COR Maps).
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.
N/A, non-project action. However, the Plan’s programs and projects may require
work within 200 feet of surface water bodies. These projects will be subject to
individual review and compliance with the City’s Shoreline Master Program.
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.
N/A, non-project action. Adoption of the LRWWMP will not itself result in the
direct alteration of the environment, however, the Plan’s programs and projects
may result in the addition or removal of fill and dredge material. The potential
impacts of these actions are currently unknown. Projects that are subject to
environmental review will be evaluated for potential impacts and corresponding
mitigation measures prior to implementation.
4) Will the proposal require surface water withdrawals or diversions? Give general
description, purpose, and approximate quantities if known.
N/A, non-project action. Adoption of the LRWWMP will not itself result in the
withdrawal or diversion of surface water. Projects that are subject to environmental
review will be evaluated for potential impacts and corresponding mitigation
measures prior to implementation.
5) Does the proposal lie within a 100-year floodplain? If so, note location on the site plan.
N/A, non-project action. However, some portions of the City are within or adjacent
to 100-year floodplains. Projects that are subject to environmental review will
identify floodplain boundaries prior to implementation.
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.
N/A, non-project action. However, no waste material will be discharged into surface
waters during construction of projects recommended by this Plan. Projects that
are subject to environmental review will identify discharge plans prior to
implementation.
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b. Ground Water: [help] 1) Will groundwater 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 groundwater? Give general
description, purpose, and approximate quantities if known.
N/A, non-project action. Adoption of the LRWWMP will not itself result in the
withdrawal of groundwater.
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.
N/A, non-project action. However, no waste material will be discharged into the
ground during projects recommended by this Plan. Projects that are subject to
environmental review will identify discharge plans prior to implementation.
c. Water runoff (including stormwater): 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.
N/A, non-project action. Adoption of the LRWWMP will not itself result in runoff.
Projects that are subject to environmental review will be evaluated for potential
impacts and corresponding mitigation measures prior to implementation.
2) Could waste materials enter ground or surface waters? If so, generally describe.
N/A, non-project action. Adoption of the LRWWMP will not itself result in waste
materials entering ground or surface waters. Projects that are subject to
environmental review will be evaluated for potential impacts and corresponding
mitigation measures prior to implementation.
3) Does the proposal alter or otherwise affect drainage patterns in the vicinity of the site? If
so, describe.
N/A, non-project action. Adoption of the LRWWMP will not itself result in any such
impacts.
d. Proposed measures to reduce or control surface, ground, and runoff water, and drainage
pattern impacts, if any:
N/A, non-project action. Adoption of the LRWWMP will not itself result in any such
impacts. Projects that are subject to environmental review will be evaluated for
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potential impacts and their corresponding reduction and control measures prior to
implementation.
4. Plants [help] a. Check the 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
__x__pasture
____crop or grain
____ Orchards, vineyards or other permanent crops.
__x__ wet soil plants: cattail, buttercup, bullrush, skunk cabbage, other
__x_water plants: water lily, eelgrass, milfoil, other
_ x__other types of vegetation
b. What kind and amount of vegetation will be removed or altered?
N/A, non-project action. Adoption of the LRWWMP will not itself result in the direct
removal or alteration of vegetation, however, the Plan’s programs and projects may
result in these impacts. The potential impacts of these actions are currently unknown.
Projects that are subject to environmental review will be evaluated for potential
vegetation impacts and corresponding mitigation measures prior to implementation.
c. List threatened and endangered species known to be on or near the site.
N/A, non-project action. Specific projects that are subject to environmental review will
be evaluated for their potential impact to threatened or endangered plant species on
or near the site.
d. Proposed landscaping, use of native plants, or other measures to preserve or enhance
vegetation on the site, if any:
N/A, non-project action. Specific projects that are subject to environmental review will
be evaluated for vegetation plans before implementation.
e. List all noxious weeds and invasive species known to be on or near the site.
N/A, non-project action. Specific projects that are subject to environmental review will
be evaluated for noxious and invasive plant species on or near the site before plan
implementation.
5. Animals [help] a. List any birds and other animals which have been observed on or near the site or are known
to be on or near the site.
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N/A, non-project action. Many of the following birds and animals could be present
within the water service area. Specific projects will be subject to individual
environmental review prior to implementation.
Examples include:
Birds: hawk, heron, eagle, songbirds, other: gulls
Mammals: deer, bear, elk, beaver, other: possum, raccoon, rabbits, squirrels
Fish: bass, salmon, trout, herring, shellfish, other:
b. List any threatened and endangered species known to be on or near the site.
According to the U.S. Fish and Wildlife Service, the following animals are listed as
threatened within the water service area: bull trout (Salvelinus confluentus), marbled
murrelet (Brachyramphus marmoratus), streaked horned lark (Eremophila alpestris
strigata), and yellow-billed cuckoo (Coccyzus americanus). According NOAA, the City
is within the critical habitat for Puget Sound ESU Chinook (Oncorhynchus
tshawytscha) and Puget Sound DPS Steelhead (Oncorhynchus mykiss). Specific
projects that are subject to environmental review will be evaluated for their potential
impact to threatened or endangered wildlife species on or near the site.
c. Is the site part of a migration route? If so, explain.
N/A, non-project action. However, the entire state of Washington is within the Pacific
flyway and two rivers within the sewer service area (Cedar and Green Rivers) are
spawning routes for salmon and steelhead trout. Specific projects will be subject to
individual environmental review prior to implementation.
d. Proposed measures to preserve or enhance wildlife, if any:
N/A, non-project action. Projects that are subject to environmental review will be
evaluated for potential impacts to wildlife and their corresponding preservation or
enhancement measures prior to implementation.
e. List any invasive animal species known to be on or near the site.
N/A, non-project action. Specific projects that are subject to environmental review
will be evaluated for invasive animal species on or near the site prior to
implementation.
6. Energy and Natural Resources [help] 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.
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N/A, non-project action. Adoption of the LRWWMP will not itself use energy. Specific
projects that are subject to environmental review will be evaluated for energy and
other natural resource uses prior to implementation.
b. Would your project affect the potential use of solar energy by adjacent properties?
If so, generally describe.
N/A, non-project action. Adoption of the LRWWMP will not itself affect the use of
solar energy. Specific projects that are subject to environmental review will be
evaluated for effects on solar energy by adjacent properties prior to implementation.
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:
N/A, non-project action. Adoption of the LRWWMP will not itself result in the direct
reduction or control of energy impacts, however, the Plan’s programs and projects
may result in energy conservation features. Specific projects that are subject to
environmental review will be evaluated for energy conservation features prior to
implementation.
7. Environmental Health [help] 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.
N/A, non-project action. Adoption of the LRWWMP will not itself result in direct
environmental hazards, however, the potential impacts from the Plan’s programs
and projects are currently unknown. Specific projects that are subject to
environmental review will be evaluated for potential environmental health hazards
and corresponding mitigation measures prior to implementation.
1) Describe any known or possible contamination at the site from present or past uses.
N/A, non-project action. Specific projects that are subject to environmental review
will be evaluated for known or possible contamination at the site prior to
implementation.
2) Describe existing hazardous chemicals/conditions that might affect project development
and design. This includes underground hazardous liquid and gas transmission pipelines
located within the project area and in the vicinity.
N/A, non-project action. Specific projects that are subject to environmental review
will be evaluated for existing hazardous chemicals or conditions at the site prior
to implementation.
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3) Describe any toxic or hazardous chemicals that might be stored, used, or produced
during the project's development or construction, or at any time during the operating
life of the project.
N/A, non-project action. Specific projects that are subject to environmental
review will be evaluated for toxic or hazardous chemicals during the
development, construction, or lifetime of the project prior to implementation.
4) Describe special emergency services that might be required.
N/A, non-project action. Adoption of the LRWWMP will not itself require
emergency services, however, the potential impacts from the Plan’s programs
and projects are currently unknown. Specific projects that are subject to
environmental review will be evaluated for special emergency services prior to
implementation.
5) Proposed measures to reduce or control environmental health hazards, if any:
N/A, non-project action. Adoption of the LRWWMP will not itself require the
reduction or control of environmental health hazards, however, the potential
impacts from the Plan’s programs and projects are currently unknown. Specific
projects that are subject to environmental review will be evaluated for
environmental health hazards and corresponding reduction or control measures
prior to implementation.
b. Noise 1) What types of noise exist in the area which may affect your project (for example:
traffic, equipment, operation, other)?
N/A, non-project action. Specific projects that are subject to environmental review
will be evaluated for surrounding noise prior to implementation.
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)? Indi-
cate what hours noise would come from the site.
N/A, non-project action. Adoption of the LRWWMP will not itself create any long-
term or short-term noise, however, the potential impacts from the Plan’s programs
and projects are currently unknown. Specific projects that are subject to
environmental review will be evaluated for potential project noise prior to
implementation.
3) Proposed measures to reduce or control noise impacts, if any:
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N/A, non-project action. Specific projects that are subject to environmental review
will be evaluated for potential project noise and corresponding measures to
reduce or control noise impacts prior to implementation.
8. Land and Shoreline Use [help] 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.
The following land uses are present within the water service area: industrial,
commercial, residential, public, park, and other land uses. Adoption of the
LRWWMP will not itself affect any land use on nearby or adjacent properties,
however, the potential impacts from the Plan’s programs and projects are
currently unknown. Specific projects that are subject to environmental review will
be evaluated for individual land uses prior to implementation.
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 nonfarm or
nonforest use?
In the past, the City contained working farmlands as a small part of the economic
base. Adoption of the LRWWMP will not itself convert any agricultural or forest
land. Specific projects that are subject to environmental review will be evaluated
for effects to working farm or forest land prior to implementation.
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:
N/A, non-project action. Adoption of the LRWWMP will not itself affect or be
affected by surrounding working farm or forest land, however, the potential
impacts from the Plan’s programs and projects are currently unknown. Specific
projects that are subject to environmental review will be evaluated for affects by
or affects to working farm or forest land prior to implementation.
c. Describe any structures on the site.
There are many types of structures in the sewer service area including: industrial,
commercial, residential, schools, hotels, and other common structures.
d. Will any structures be demolished? If so, what?
N/A, non-project action. Adoption of the LRWWMP will not itself demolish any
structures, however, the potential impacts from the Plan’s programs and projects
are currently unknown. Specific projects that are subject to environmental review
will be evaluated for planned demolition prior to implementation.
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e. What is the current zoning classification of the site?
The sewer service area encompasses a wide variety of zoning classifications
including: resource conservation, residential, commercial, urban, and industrial
areas.
f. What is the current comprehensive plan designation of the site?
The sewer service area encompasses multiple comprehensive plan land use
designations including: residential low density, residential medium density,
residential high density, commercial & mixed use, commercial office residential,
and employment area.
g. If applicable, what is the current shoreline master program designation of the site?
The sewer service area encompasses multiple areas classified with shoreline
designations including: natural, urban conservancy, single family residential,
shoreline high-intensity, shoreline isolated high-intensity, and aquatic
environments. Specific projects recommended by the Plan will be required to
comply with the City’s Shoreline Master Program.
h. Has any part of the site been classified as a critical area by the city or county? If so, specify.
The sewer service area encompasses multiple areas classified as critical areas.
These include: flood hazard areas, seismic hazard areas, steep slopes, habitat
conservation areas, streams, lakes, wellhead protection areas, and wetlands.
i. Approximately how many people would reside or work in the completed project?
The City’s sewer system provided service to a full time residential and commercial
population of approximately 113,792 in 2012, and is estimated to increase to
219,014 by 2040.
j. Approximately how many people would the completed project displace?
N/A, non-project action. Adoption of the LRWWMP will not itself displace any
people. The potential impacts from the Plan’s programs and projects are currently
unknown, however, it is unlikely any project would lead to displacement. Specific
projects that are subject to environmental review will be evaluated for
displacement prior to implementation.
k. Proposed measures to avoid or reduce displacement impacts, if any:
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N/A, non-project action. Specific projects that are subject to environmental review
will be evaluated for displacement prior to implementation.
L. Proposed measures to ensure the proposal is compatible with existing and projected land
uses and plans, if any:
The City of Renton Long Range Wastewater Management Plan is written
in accordance with all existing local, county, and state regulations
including the City’s Comprehensive Plan.
m. Proposed measures to reduce or control impacts to agricultural and forest lands of long-term
commercial significance, if any:
N/A, non-project action. Specific projects that are subject to environmental review
will be evaluated for potential impacts to agricultural and forest lands, and their
corresponding preservation or enhancement measures, prior to implementation.
9. Housing [help] a. Approximately how many units would be provided, if any? Indicate whether high, mid-
dle, or low-income housing.
N/A, non-project action. The adoption of the LRWWMP and its corresponding
programs and projects are not intended to provide housing units.
b. Approximately how many units, if any, would be eliminated? Indicate whether high,
middle, or low-income housing.
N/A, non-project action. The adoption of the LRWWMP and its corresponding
programs and projects are not intended to provide housing units.
c. Proposed measures to reduce or control housing impacts, if any:
N/A, non-project action. The adoption of the LRWWMP and its corresponding
programs and projects are not intended to provide housing units.
10. Aesthetics [help]
a. What is the tallest height of any proposed structure(s), not including antennas; what is
the principal exterior building material(s) proposed?
N/A, non-project action. Adoption of the LRWWMP will not itself result in a
structure. Specific projects that are subject to environmental review will be
evaluated for structure height and material prior to implementation.
b. What views in the immediate vicinity would be altered or obstructed?
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N/A, non-project action. Specific projects that are subject to environmental
review will be evaluated for view alteration or obstruction prior to
implementation.
c. Proposed measures to reduce or control aesthetic impacts, if any:
N/A, non-project action. Specific projects that are subject to environmental review will be
evaluated for their potential aesthetic impacts and corresponding mitigation measures prior to
implementation.
11. Light and Glare [help] a. What type of light or glare will the proposal produce? What time of day would it mainly
occur?
N/A, non-project action. Adoption of the LRWWMP will not itself result in light or
glare. Specific projects that are subject to environmental review will be evaluated
for potential light or glare prior to implementation.
b. Could light or glare from the finished project be a safety hazard or interfere with views?
N/A, non-project action. Adoption of the LRWWMP will not itself result in light or
glare. Specific projects that are subject to environmental review will be evaluated
for potential light or glare prior to implementation.
c. What existing off-site sources of light or glare may affect your proposal?
N/A, non-project action. Adoption of the LRWWMP itself will not be affected by
existing off-site sources of light or glare. Specific projects that are subject to
environmental review will be evaluated for existing off-site light or glare prior to
implementation.
d. Proposed measures to reduce or control light and glare impacts, if any:
N/A, non-project action. Adoption of the LRWWMP itself will not be affected by
existing off-site sources of light or glare. Specific projects that are subject to
environmental review will be evaluated for their potential light impacts and
corresponding mitigation measures prior to implementation.
12. Recreation [help]
a. What designated and informal recreational opportunities are in the immediate vicinity?
Within and near the sewer service area are numerous parks and recreational
opportunities, including Maplewood Golf Course. There are also streams and rivers
within the water service area that provide recreational opportunities.
SEPA Environmental checklist (WAC 197-11-960) July 2016 Page 16 of 22
b. Would the proposed project displace any existing recreational uses? If so, describe.
N/A, non-project action. Adoption of the LRWWMP will not itself displace any
recreational uses.
c. Proposed measures to reduce or control impacts on recreation, including recreation
opportunities to be provided by the project or applicant, if any:
N/A, non-project action. Specific projects that are subject to environmental review
will be evaluated for their impacts on recreation and corresponding mitigation
measures prior to implementation.
13. Historic and cultural preservation [help] 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 ? If so,
specifically describe.
N/A, non-project action. Adoption of the LRWWMP will not itself involve any
historical buildings or sites. Specific projects that are subject to environmental
review will be evaluated for their proximity to historical buildings or sites prior to
implementation.
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.
N/A, non-project action. Adoption of the LRWWMP will not itself involve any
cultural resources. Specific projects that are subject to environmental review will
be evaluated for their proximity to cultural resources prior to implementation.
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 data, etc.
N/A, non-project action. Specific projects that are subject to environmental review
will be evaluated for their impacts on historic sites and cultural resources on or
near the project site.
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.
N/A, non-project action. Specific projects that are subject to environmental review
will be evaluated for their impacts on historic and cultural resources and
corresponding mitigation measures prior to implementation.
SEPA Environmental checklist (WAC 197-11-960) July 2016 Page 17 of 22
14. Transportation [help] 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.
Many streets and highways serve the Sewer System Plan area. Major highways passing
through the city include: Interstate 405 and State Routes 167, 169, 515 and 900. Major
arterials providing access to and from the city include Rainier Avenue, Benson Road, Carr
Road, and Duvall Avenue.
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?
Public transportation within the City includes bus and train services provided by Sound
Transit and King County Metro. Specific projects that are subject to environmental review
will be evaluated for their proximity to public transit prior to implementation.
c. How many additional parking spaces would the completed project or non-project proposal
have? How many would the project or proposal eliminate?
N/A, non-project action. Adoption of the LRWWMP will not itself impact any
parking features. Specific projects that are subject to environmental review will be
evaluated for their impacts to parking spaces and corresponding mitigation
measures prior to implementation.
d. Will the proposal require any new or improvements to existing roads, streets, pedestrian,
bicycle or state transportation facilities, not including driveways? If so, generally describe
(indicate whether public or private).
N/A, non-project action. Adoption of the LRWWMP will not itself require any new or
improved transportation features. Specific projects that are subject to environmental
review will be evaluated for their impacts to transportation prior to implementation.
e. Will the project or proposal use (or occur in the immediate vicinity of) water, rail, or air
transportation? If so, generally describe.
N/A, non-project action. The Plan’s programs and projects may occur in the
immediate vicinity of water, rail, or air transportation. Specific projects that are
subject to environmental review will be evaluated for transportation prior to
implementation.
f. How many vehicular trips per day would be generated by the completed project or proposal?
If known, indicate when peak volumes would occur and what percentage of the volume would
be trucks (such as commercial and nonpassenger vehicles). What data or transportation
models were used to make these estimates?
SEPA Environmental checklist (WAC 197-11-960) July 2016 Page 18 of 22
N/A, non-project action. Adoption of the LRWWMP will not itself affect the
amount of vehicular trips per day in the area, however, the potential impacts from
the Plan’s programs and projects are currently unknown. Specific projects that
are subject to environmental review will be evaluated for effects to transportation
prior to implementation.
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.
N/A, non-project action. The potential impacts from the Plan’s programs and
projects are currently unknown, however, it is unlikely any project would affect or
be affected by the movement of agricultural or forest products. Specific projects
that are subject to environmental review will be evaluated for the movement of
products prior to implementation.
h. Proposed measures to reduce or control transportation impacts, if any:
N/A, non-project action. Specific projects that are subject to environmental
review will be evaluated for their impacts on transportation and corresponding
mitigation measures prior to implementation.
15. Public Services [help]
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.
N/A, non-project action. The potential impacts from the Plan’s programs and
projects are currently unknown, however, it is unlikely any project would
increase the need for public services. Specific projects that are subject to
environmental review will be evaluated for public service needs prior to
implementation.
b. Proposed measures to reduce or control direct impacts on public services, if any.
N/A, non-project action. Specific projects that are subject to environmental
review will be evaluated for their impacts on public services and corresponding
mitigation measures prior to implementation.
16. Utilities [help] a. Circle utilities currently available at the site:
electricity, natural gas, water, refuse service, telephone, sanitary sewer, septic system,
other ___________
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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.
The recommended repairs, replacements, improvements, or extensions to infrastructure in
the LRWWMP are required to meet the level of service criteria set forth by local, county,
and state governments. The infrastructure includes lift stations, sewer mains, and related
appurtenances. Each specific recommended project, subject to environmental review, will
be evaluated for its impacts prior to implementation.
C. Signature [HELP] The above answers are true and complete to the best of my knowledge. I understand that the
lead agency is relying on them to make its decision. Signature: ___________________________________________________
Name of signee ___Ann Fowler____________________________ _________
Position and Agency/Organization CIP Project Manager/ City of Renton ______
Date Submitted: April 29, 2021
D. Supplemental sheet for nonproject actions [HELP]
(IT IS NOT NECESSARY to use this sheet for project actions) Because these questions are very general, it may be helpful to read them in conjunction
with the list of the elements of the environment. When answering these questions, be aware of the extent the proposal, or the types of
activities likely to result from the proposal, would affect the item at a greater intensity or
at a faster rate than if the proposal were not implemented. Respond briefly and in
general terms.
1. How would the proposal be likely to increase discharge to water; emissions to air; pro-
duction, storage, or release of toxic or hazardous substances; or production of noise?
The Long Range Wastewater Management Plan will not itself increase discharge to water,
emissions to air, hazardous substances, or production of noise, however, the Plan’s
programs and projects have the potential for these effects. For example, projects
recommended by the Plan that require construction may result in exhaust emissions, dust,
and noise from construction equipment as well as temporary storage of hazardous
materials. All hazardous materials storage within the Aquifer Protection Area will be
required to comply with the Aquifer Protection Code in order to prevent contamination of
the City’s main drinking water source. Specific projects that are subject to environmental
review will be evaluated for potential impacts and corresponding mitigation measures prior
to implementation.
SEPA Environmental checklist (WAC 197-11-960) July 2016 Page 20 of 22
Proposed measures to avoid or reduce such increases are:
For the LRWWMP adoption, there are no specific measures planned to reduce these
impacts. Best management practices will be used to minimize impacts, in accordance with
local, state, and federal laws, during the planning and construction of any applicable
projects. Proposed projects will be reviewed and addressed on an individual basis by
appropriate agencies prior to implementation.
2. How would the proposal be likely to affect plants, animals, fish, or marine life?
Adoption of the LRWWMP will not itself result in direct effects to plants, animals, fish, or
marine life. It is not anticipated that any of the proposed projects within the Plan will have
an impact upon vegetation or wildlife, however, there is potential for impacts to occur
during construction efforts. Specific projects that are subject to environmental review will
be evaluated for potential impacts to vegetation and wildlife and corresponding mitigation
measures prior to implementation.
Proposed measures to protect or conserve plants, animals, fish, or marine life are:
Specific projects that are subject to environmental review will be evaluated for their
potential impact to plants, animals, fish, and marine life. Potential impacts will be reported
with corresponding mitigation measures to protect or conserve vegetation and wildlife.
Proposed projects and mitigation measures will be reviewed and addressed on an
individual basis by appropriate agencies prior to implementation.
3. How would the proposal be likely to deplete energy or natural resources?
Adoption of the LRWWMP will not itself result in the direct depletion of energy or natural
resources. It is not anticipated that any of the proposed projects within the Plan will have a
strong impact on energy or natural resources, however, some projects may require the use
of energy resources. For example, the running or testing of water system facilities uses
electricity and construction projects require fuel for equipment operation and delivery of
materials. Specific projects that are subject to environmental review will be evaluated for
potential impacts to energy resources and corresponding mitigation measures prior to
implementation.
Proposed measures to protect or conserve energy and natural resources are:
For the LRWWMP adoption, best management practices will be used to minimize energy
usage. For example, the sewer utility maximizes the potential for gravity flow in the sewer
system whenever possible. Programs and projects proposed in the LRWWMP may also
result in energy conservation features such as improvements to lift stations and strategies
to increase system efficiency. Best management practices will be used in the design,
construction and operations of the infrastructure proposed by the Plan, in accordance with
local, state, and federal laws, during the planning and construction of any applicable
projects. Proposed projects will be reviewed and addressed on an individual basis for
energy and natural resources impacts by appropriate agencies prior to implementation.
SEPA Environmental checklist (WAC 197-11-960) July 2016 Page 21 of 22
4. How would the proposal be likely to use or affect environmentally sensitive areas or
areas designated (or eligible or under study) for governmental protection; such as parks,
wilderness, wild and scenic rivers, threatened or endangered species habitat, historic or
cultural sites, wetlands, floodplains, or prime farmlands?
Adoption of the LRWWMP will not itself result in direct effects to environmentally sensitive
areas or areas designated for governmental protection, however, there is potential for the
Plan’s programs and projects to occur in the immediate vicinity of sensitive areas. The
potential impacts from these actions are currently unknown. Specific projects that are
subject to environmental review will be evaluated for potential impacts and corresponding
mitigation measures prior to implementation.
Proposed measures to protect such resources or to avoid or reduce impacts are:
Specific projects that are subject to environmental review will be evaluated by the
appropriate agencies for their potential impact and corresponding mitigation measures
prior to implementation. All such projects will be required to comply with applicable local,
state, and federal guidelines and regulations regarding environmental protection.
5. How would the proposal be likely to affect land and shoreline use, including whether it
would allow or encourage land or shoreline uses incompatible with existing plans?
Adoption of the LRWWMP will not itself result in direct effects to land and shoreline use
and will not allow or encourage land or shoreline uses incompatible with existing plans.
Specific projects that are subject to environmental review will be evaluated for land and
shoreline use prior to implementation.
Proposed measures to avoid or reduce shoreline and land use impacts are:
The LRWWMP is designed to support City land use plans, including adhering to the
guidelines set by the state Growth Management Act. All such projects will be required to
comply with applicable local, state, and federal guidelines and regulations regarding
shoreline and land use. Proposed projects will be reviewed and addressed on an individual
basis by appropriate agencies prior to implementation.
6. How would the proposal be likely to increase demands on transportation or public
services and utilities?
Adoption of the LRWWMP will not increase the demand for transportation, public
services, or utilities. The Plan itself is partly in response to population growth and
increased demands on the sewer utility. Sewer demand projections are included
in Chapter 4 of the 2021 City of Renton Long Range Wastewater Management
Plan.
SEPA Environmental checklist (WAC 197-11-960) July 2016 Page 22 of 22
Proposed measures to reduce or respond to such demand(s) are:
The proposed LRWWMP was developed, in part, as a response to increased
demands on the City’s sewer utility system.
7. Identify, if possible, whether the proposal may conflict with local, state, or federal laws or
requirements for the protection of the environment.
The 2021 City of Renton Long Range Wastewater Management Plan does not
conflict with any known local, state, or federal environmental laws or
requirements. Specific projects that are subject to environmental review will be
evaluated for adherence to environmental laws or requirements prior to
implementation.