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SEPA Environmental checklist (WAC 197-11-960) July 2016 Page 1 of 13
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 y our 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 age ncy 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: Tesla Renton Collison Center
2. Name of applicant: Kimley Horn Inc.
Exhibit 2
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3. Address and phone number of applicant and contact person: 600 SW 10th St, Renton WA
98057
4. Date checklist prepared: October 30, 2023
5. Agency requesting checklist: City of Renton
6. Proposed timing or schedule (including phasing, if applicable): Construction anticipated to
start December 2023
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. No other environmental information being
proposed.
9. Do you know whether applications are pending for governmental appr ovals of other
proposals directly affecting the property covered by your proposal? If yes, explain.
No pending proposals
10. List any government approvals or permits that will be needed for your proposal, if known.
No governmental approvals required
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 y our 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.) This project is a redevelopment of an existing parking lot. New private
parking on northern area of site for Tesla vehicle storage.
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 t he agency, you
are not required to duplicate maps or detailed plans submitted with any permit applications
related to this checklist. This Project location is north of SW 10th street between Thomas
Avenue and Lind Avenue. Lot 5 of Earlington industrial park no. 1, according to plat
recorded in volume 83 of plats, page 10, in King County, Washington.
B. Environmental Elements [HELP]
1. Earth [help]
a. General description of the site:
(circle one): Flat, rolling, hilly, steep slopes, mountainous, other _____________
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b. What is the steepest slope on the site (approximate percent slope)? 4%
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.
Per geotechnical report, this site is composed of a topsoil layer, a fill layer, and
quaternary alluvium layer that is medium stiff gray silt with a trace of some sand.
NCRS classifies this area as urban land.
d. Are there surface indications or history of unstable soils in the immediate vicinity? If so,
describe.
No evidence of unstable soils on site.
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.
f. Could erosion occur as a result of clearing, construction, or use? If so, generally describe.
Erosion is expected to be contained within the excavated trench or pit.
g. About what percent of the site will be covered with impervious surfaces after project
construction (for example, asphalt or buildings)?
93% of the site will be impervious post-construction.
h. Proposed measures to reduce or control erosion, or other im pacts to the earth, if any:
Temporary erosion control measures will include downstream devices such as silt
fencing and gravel bags. Drain inlet proections are added where applies.
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.
Heavy machine use includes: excavator, grader, pavers, and rollers.
b. Are there any off-site sources of emissions or odor that may affect your proposal? If so,
generally describe.
Possible offsite emissions may include asphalt plant.
c. Proposed measures to reduce or control emissions or other impacts to air, if any:
Dust control measures may include watering and overing of stockpile mounds, i f
necessary.
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.
No surface water is in the immediate area. The Black river is located 1,800 linear
feet away to the west of the site.
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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.
No.
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.
No imported or exported fill anticipated.
4) Will the proposal require surface water withdrawals or diversions? Give general
description, purpose, and approximate quantities if known.
No surface water withdrawals or diversions required.
5) Does the proposal lie within a 100-year floodplain? If so, note location on the site plan.
Site does not lie within 100-year floodplain.
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.
Project does not discharge waste materials into surface waters.
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.
No Groundwater is anticipated to be withdrawn.
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.
No wastewater is anticipated to be withdrawn.
c. Water runoff (including stormwater):
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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.
The site plans to detain 2, 10, 100 year peak rates. The 2-year flows will be treated
for quality using modular wetlands.
2) Could waste materials enter ground or surface waters? If so, generally describe.
No waste material discharges are anticipated. Subsurface soils prohibit surface
infiltration.
2) Does the proposal alter or otherwise affect drainage patterns in the vicinity of the site? If
so, describe.
No change to existing drainage patterns for proposed design.
d. Proposed measures to reduce or control surface, ground, and runoff water, and drainage
pattern impacts, if any:
Detention vault will detain flows and release flows below those flows under
preconditions.
4. Plants [help]
a. Check the types of vegetation found on the site:
____deciduous tree: alder, maple, aspen, other
____evergreen tree: fir, cedar, pine, other
____shrubs
____grass
____pasture
____crop or grain
____ Orchards, vineyards or other permanent crops.
____ wet soil plants: cattail, buttercup, bullrush, skunk cabbage, other
____water plants: water lily, eelgrass, milfoil, other
____other types of vegetation
b. What kind and amount of vegetation will be removed or altered?
Removal of grass, shrubs are anticipated.
c. List threatened and endangered species known to be on or near the site.
No known endangered species on site.
d. Proposed landscaping, use of native plants, or other measures to preserve or enhance
vegetation on the site, if any:
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Proposed landscaping includes xxxxx
e. List all noxious weeds and invasive species known to be on or near the site .
No known noxious weeds or invasive species on site.
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.
No mammals, birds, reptiles observed.
Examples include:
birds: hawk, heron, eagle, songbirds, other:
mammals: deer, bear, elk, beaver, other:
fish: bass, salmon, trout, herring, shellfish, other ________
b. List any threatened and endangered species known to be on or near the site.
No known endangered species present at or near site.
c. Is the site part of a migration route? If so, explain.
No known migration route was observed on site.
d. Proposed measures to preserve or enhance wildlife, if any:
No preservation measures proposed.
e. List any invasive animal species known to be on or near the site.
No invasive animal species on site.
6. Energy and Natural R esources [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.
There is a potential for low voltage power source to c ontrol a stormwater pump may be
required.
b. Would your project affect the potential use of solar energy by adjacent properties?
If so, generally describe.
No significant impact for adjacent solar energy use.
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:
Limited cut/fill materials required for this site.
7. Environmental H ealth [help]
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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 known environmental hazards
1) Describe any known or possible contamination at the site from present or past uses.
There was an above-ground fuel tank that was removed.
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.
No known hazardous chemicals
3) Describe any toxic or hazardous chemicals that might be stored, used, or produced
during the project's developm ent or construction, or at any time during the operating
life of the project.
No known toxic or hazardous chemicals will be used, stored, or produced
during development and construction of project.
4) Describe special emergency services that might be requir ed.
Emergency for onsite injuries.
5) Proposed measures to reduce or control environmental health hazards, if any:
General site safety and practices shall be used to prevent injuries.
b. Noise
1) What types of noise exist in the area which may affect your project (for example:
traffic, equipment, operation, other)?
Noise from heavy equipment during construction may cause additional noise,
otherwise changes are minimal.
2) What types and levels of noise would be created by or associated with the p roject 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.
Noise from heavy equipment during construction hours of 7:30AM to 7:30PM are
expected.
3) Proposed measures to reduce or control noise impacts, if any:
Do not work outside designated working hours.
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.
Current use is for truck delivery, new use is for Tesla collision center.
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
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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?
No structures demolished from this project.
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 surrounding farms or forests are adjacent to the site.
c. Describe any structures on the site.
One existing warehouse and one telecom antennae.
d. Will any structures be demolished? If so, what?
No structures will be demolished by this site.
e. What is the current zoning classification of the site?
Medium industrial
f. What is the current comprehensive plan designation of the site?
Currently designated as employment area (EA).
g. If applicable, what is the current shoreline master program designation of the site?
None
h. Has any part of the site been classified as a critical area by the city or county ? If so, specify.
The site is not classified as critical area.
i. Approximately how many people would reside or work in the completed project?
Currently unknown
j. Approximately how many people would the completed project displace?
No displacement is anticipated.
k. Proposed measures to avoid or reduce displacement impacts, if any:
None
L. Proposed measures to ensure the proposal is compatible with existing and projected land
uses and plans, if any:
Land use is compatible with existing zoning.
m. Proposed measures to reduce or control impacts to agricultural and forest lands of long-term
commercial significance, if any:
No forested lands or agricultural impacts are expected.
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9. Housing [help]
a. Approximately how many units would be provided, if any? Indicate whether high, mid -
dle, or low-income housing.
No residential units are proposed.
b. Approximately how many units, if any, would be eliminated? Indicate whether high,
middle, or low-income housing.
No residential units are proposed.
c. Proposed measures to reduce or control housing impacts, if any:
No residential units are proposed.
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?
No structures proposed by this project.
b. What views in the immediate vicinity would be altered or obstructed?
None, this is a surface parking project.
d. Proposed measures to reduce or control aesthetic impacts, if any:
None
11. Light and Glare [help]
a. What type of light or glare will the proposal produce? What time of day would it mainly
occur?
Mostly LED luminaires, mostly turned on at night.
b. Could light or glare from the finished project be a safety hazard or interfere with views?
No anticipated hazards.
c. What existing off-site sources of light or glare may affect your proposal?
Street lights from Seneca Avenue may reflect onto proposed parking lot.
d. Proposed measures to reduce or control light and glare impacts, if any:
Lights are turned off during day time.
12. Recreation [help]
a. What designated and informal recreational opportunities are in the immediate vicinity?
Nearest park is Earlington Park, over 1 mile away.
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b. Would the proposed project displace any existing recreational uses? If so, describe.
None
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 [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.
No building or structures over 45 years old.
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 historical features observed, no study is available.
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.
No historical features observed on site or listed on the City of Renton’s GIS data 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.
No historical features observed.
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.
Site is accessed from SW 10th street and Seneca 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?
Nearest public transit center is Lind Way and SW Grady Ave bus stop approximately
400 feet to the east.
c. How many additional parking spaces would the completed project or non-project proposal
have? How many would the project or proposal eliminate?
Project will have total of 550 total proposed parking spaces.
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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).
5 new bike racks, 11 ADA total stalls on proposed site.
e. Will the project or proposal use (or occur in the immediate vicinity of) water, rail, or air
transportation? If so, generally describe.
No modes expected beyond vehicular.
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?
Project expected to produce more than 100 trips per day based on previous collison
center data.
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 impacts to agricultural or forest products are expected.
h. Proposed measures to reduce or control transportation impacts, if any:
No changes to current use or other transporation impacts are expected.
15. Public S ervices [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.
No additional need for public services are expected beyond what is currently present.
b. Proposed measures to reduce or control direct impacts on public services, if any.
No additional measures are proposed.
16. Utilities [help]
a. Circle utilities currently available at the site:
electricity, natural gas, water, refuse service, telephone, sanitary sewer, septic system,
other ___________
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.
Storm drain utilities are designed for this site.
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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 __________________________________________________
Position and Agency/Organization ____________________________________
Date Submitted: _____________
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?
Proposed measures to avoid or reduce such increases are:
2. How would the proposal be likely to affect plants, animals, fish, or marine life?
Proposed measures to protect or conserve plants, animals, fish, or marine life are:
3. How would the proposal be likely to deplete energy or natural resources?
Proposed measures to protect or conserve energy and natural resources a re:
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,
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wilderness, wild and scenic rivers, threatened or endangered species habitat, historic or
cultural sites, wetlands, floodplains, or prime farmlands?
Proposed measures to protect such resources or to avoid or reduce impacts are:
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?
Proposed measures to avoid or reduce shoreline and land use impacts are:
6. How would the proposal be likely to increase demands on transportation or public
services and utilities?
Proposed measures to reduce or respond to such demand(s) are:
7. Identify, if possible, whether the proposal may conflict with local, state, or federal laws or
requirements for the protection of the environment.
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