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SEPA Environmental checklist (WAC 197-11-960) July 2016 Page 1 of 14
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: Sapphire on Talbot
2. Name of applicant: Sapphire Homes, Inc.
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3. Address and phone number of applicant and contact person:
Applicant:
Sapphire Homes, Inc.
Attn: Troy Schmeil
16805 SE 43rd Court
Bellevue, WA 98006
206-945-4945
Contact:
Encompass Engineering & Surveying
Attn: Ed Mecum
165 NE Juniper St., Suite 201
Issaquah, WA 98027
425-392-0250
4. Date checklist prepared: 10/18/2018
5. Agency requesting checklist: City of Renton
6. Proposed timing or schedule (including phasing, if applicable):
Construct summer 2019
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.
Wetland Reconnaissance by The Watershed Company dated 6/11/2015.
Wetland Review Letter by Sewall Wetland Consulting, Inc. dated 6/6/2016
Geotechnical Engineering Report by Migizi Group dated 10/11/2017
Geotechnical Engineering Report by Migizi Group dated revised 8/30/2018
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.
City of Renton approval of preliminary plat, NPDES, engineering plans, final plat,
and building permits.
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.)
This proposal will create 20 single family residential lots on 1.69 acres
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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.
Property is located at 4827 Talbot Rd. S, Renton, 98055, Tax Parcel 312305-9022.
In the NW ¼ of SW ¼ Section 31, Township 23 N., Range 05 E., King County
B. Environmental Elements [HELP]
1. Earth [help]
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)?
The steepest slope on the site is about 17%±.
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.
AgC – Alderwood gravelly sandy loam, 8 to 15 slopes as shown on the USDA /NRCS Soil
Resource Report. See also Geotechnical Engineering Report prepared by Migizi Group dated
8/30/2018, Appendix A.
d. Are there surface indications or history of unstable soils in the immediate vicinity? If so,
describe.
None known.
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.
About 95% of site graded with about 2,000cy cut and 4,000cy of fill
f. Could erosion occur as a result of clearing, construction, or use? If so, generally describe.
Erosion could result from clearing & construction activity. Erosion potential will be
minimized with use of BMP’s.
g. About what percent of the site will be covered with impervious surfaces after project
construction (for example, asphalt or buildings)?
Approximately 66% of the site will be covered with impervious surfaces, including frontage
improvements, roads sidewalks and buildings.
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h. Proposed measures to reduce or control erosion, or other impacts to the earth, if any:
Erosion will be controlled during construction with silt fencing, a rocked
construction entrance, and sediment traps. The disturbed soil will be
covered with straw, mulching, and/or seeding.
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.
Normal vehicle emissions will occur during construction activities.
b. Are there any off-site sources of emissions or odor that may affect your proposal? If so,
generally describe.
None known.
c. Proposed measures to reduce or control emissions or other impacts to air, if any:
None needed.
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.
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
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
4) Will the proposal require surface water withdrawals or diversions? Give general
description, purpose, and approximate quantities if known.
No.
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.
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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.
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.
N/A
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.
Stormwater runoff will be collected and conveyed to a stormwater vault for runoff
control and water quality. Runoff will be a controlled release to the Ashburn
Condominium storm system.
2) Could waste materials enter ground or surface waters? If so, generally describe.
Unlikely. The finished homes will be connected to the storm drainage system
and sanitary sewer. During construction, TESC measures will be in place,
along with other Best Management Practices, and the contractor will be
required by the City of Renton to have a Stormwater Pollution Prevention Plan
(SWPPP) in case of a problem with construction machinery.
3) Does the proposal alter or otherwise affect drainage patterns in the vicinity of the site? If
so, describe.
The project does not alter or otherwise affect drainage patterns in the vicinity of
the site as captured drainage for the lots will connect the existing adjacent
drainage conveyance for the Ashburn Condominiums.
d. Proposed measures to reduce or control surface, ground, and runoff water, and drainage
pattern impacts, if any:
The detention vault was sized to accommodate stormwater runoff volume per
City of Renton standards. During construction, appropriate TESC and BMPs will
address temporary site drainage.
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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
____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?
All vegetation within proposed roads, access tracts, detention space tracts,
driveways and building envelopes will be removed.
c. List threatened and endangered species known to be on or near the site.
There are no known threatened or endangered species known to be 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:
Planter strips will be installed on Talbot Road South street frontage. Completed
lots will be landscaped after construction.
e. List all noxious weeds and invasive species known to be on or near the site.
None known.
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.
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.
None known.
c. Is the site part of a migration route? If so, explain.
No local migration routes are known to cross the project site. Generally,
Western Washington is part of the Pacific Flyway.
.
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d. Proposed measures to preserve or enhance wildlife, if any:
Tree retention and replacement is proposed and open space will be provided.
e. List any invasive animal species known to be on or near the site.
None known.
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.
The energy needs of the project will be met using either electric or natural gas or
a combination of both for heating, cooling, and appliances
b. Would your project affect the potential use of solar energy by adjacent properties?
If so, generally describe.
This project will not affect the potential use of energy by adjacent properties.
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:
Building construction will conform to local and states energy laws.
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.
No environmental health hazards are anticipated as a result of this proposal.
1) Describe any known or possible contamination at the site from present or past uses.
There are no known present or past contaminations.
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.
There are no known existing hazardous chemicals or conditions which might
affect the project development or design.
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.
None anticipated.
4) Describe special emergency services that might be required.
Emergency Services needs will be consistent with those typical of a single
family residential neighborhood.
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5) Proposed measures to reduce or control environmental health hazards, if any:
None needed.
b. Noise
1) What types of noise exist in the area which may affect your project (for example:
traffic, equipment, operation, other)?
Existing noise is that which is typical to a single family residential
neighborhood.
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.
In the short term, there will be noise associated with the construction of roads,
utilities, and homes. Long term noise created by the project would be
consistent with single family residences in a residential neighborhood.
3) Proposed measures to reduce or control noise impacts, if any:
The construction noise will be limited to the hours allowed by the City of Renton
noise ordinances. Construction hours will be indicated on the approved
construction plans and permits.
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 site consists of one existing, vacant single family residence, detached
garage and shed. Surrounding property is multifamily condominiums. The
proposal will not affect the land use on the adjacent properties.
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? No.
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.
c. Describe any structures on the site.
Vacant, single family residence, detached garage and shed.
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d. Will any structures be demolished? If so, what?
All structures will be demolished.
e. What is the current zoning classification of the site?
R-14.
f. What is the current comprehensive plan designation of the site?
Residential High Density.
g. If applicable, what is the current shoreline master program designation of the site?
N/A.
h. Has any part of the site been classified as a critical area by the city or county? If so, specify.
No.
i. Approximately how many people would reside or work in the completed project?
Approximately 50 people will reside in the new subdivision.
j. Approximately how many people would the completed project displace?
None.
k. Proposed measures to avoid or reduce displacement impacts, if any:
N/A.
L. Proposed measures to ensure the proposal is compatible with existing and projected land
uses and plans, if any:
The project to be completed will conform to applicable building and zoning
codes.
m. Proposed measures to reduce or control impacts to agricultural and forest lands of long-term
commercial significance, if any:
N/A. There are no agricultural or forest lands of long-term commercial
significance nearby.
9. Housing [help]
a. Approximately how many units would be provided, if any? Indicate whether high, middle, or
low-income housing.
20 new middle income homes.
b. Approximately how many units, if any, would be eliminated? Indicate whether high,
middle, or low-income housing.
One middle income home would be eliminated.
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c. Proposed measures to reduce or control housing impacts, if any:
The project will be incompliance with City of Renton comprehensive plan, current
zoning and development regulations.
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?
The tallest structure will be in compliance with zoning code.
b. What views in the immediate vicinity would be altered or obstructed?
None.
b. Proposed measures to reduce or control aesthetic impacts, if any:
Compliance with applicable development regulations.
11. Light and Glare [help]
a. What type of light or glare will the proposal produce? What time of day would it mainly
occur?
Anticipated light and glare will be consistent with that of single family residential
neighborhood.
b. Could light or glare from the finished project be a safety hazard or interfere with views?
It is not likely that light from the finished product would be a safety hazard or interfere
with any views.
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:
No measures are proposed to reduce or control light and glare aside from the
requirements of the City of Renton Municipal Code.
12. Recreation [help]
a. What designated and informal recreational opportunities are in the immediate vicinity?
Chestnut Ridge Park and Springbrook Elementary are approximately 1.5 miles.
b. Would the proposed project displace any existing recreational 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:
As proposed, the project will provide an open space tract.
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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.
There are no known building, structures, or site of historic or cultural significance on or
near the site.
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.
There is no known evidence of Indian, historic, occupation or other cultural important
features on or near the site.
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 additional investigation regarding impacts to cultural and historical resources was
undertaken as there’s been no change on the property and surrounding property since the
construction of the existing house.
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.
Any discovery during construction activities will require stoppage of work and noticed.
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.
A new public road proposed on site will access to Talbot Rd South.
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?
There is a metro bus stop approximately one half mile from the site on S. Carr Rd.
c. How many additional parking spaces would the completed project or non-project proposal
have? How many would the project or proposal eliminate?
Two parking spaces per household (40 spaces) and limited off street parking.
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).
10.5 right of way dedication on Talbot Road South, improved with an 8’ sidewalk and 8’
planter strip. Transportation fees impact fees are proposed for this project.
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e. Will the project or proposal use (or occur in the immediate vicinity of) water, rail, or air
transportation? If so, generally describe.
This proposal will not use water, rail, or air transportation.
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 non-passenger vehicles). What data or transportation
models were used to make these estimates?
Approximately 127 trips per day during peak hour traffic. A Trip Generation Report prepared
by DN Traffic is provided with this proposal.
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.
This project with not interfere with, affect or be affected by movement of agricultural and
forest products on roads or streets.
h. Proposed measures to reduce or control transportation impacts, if any:
Frontage improvement and transportation fees are proposed to reduce transportation
impacts.
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.
There will be an increased need for all public services upon completion of the development.
b. Proposed measures to reduce or control direct impacts on public services, if any.
Mitigation and permit fees as required by the City will be paid at the time of the development.
16. Utilities [help]
a. Circle utilities currently available at the site:
electricity, natural gas, water, refuse service, telephone, sanitary sewer, septic system,
other ___________
c. 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.
City of Renton will be providing sewer and water service. Electricity and gas service will be
provided by PSE. Phone and fiber will be provided by Comcast.
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 ___Ed Mecum__________________________________ __ ............................
Position and Agency/Organization ____________________________________
Date Submitted: 10/30/18
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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 are:
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?
Proposed measures to protect such resources or to avoid or reduce impacts are:
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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.