17-105489-SEPA Checklist-12-21-2023SEPA Environmental checklist (WAC 197-11-960) January 2023 Page 1 of 19
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.
SEPA Environmental checklist (WAC 197-11-960) January 2023 Page 2 of 19
A. Background Find help answering background questions
1. Name of proposed project, if applicable:
“Woodbridge Business Park”
2. Name of applicant:
Applicant: Federal Way Campus, LLC
Agent: ESM Consulting Engineers, LLC
3. Address and phone number of applicant and contact person:
Applicant: Coby Holley c/o Federal Way Campus, LLC
11100 Santa Monica Blvd, Suite 850
Los Angeles, CA 90025
(503) 403-8057
Agent: Eric LaBrie c/o ESM Consulting Engineers, LLC
33400 8th Ave S, Suite 205
Federal Way, WA 98003
(253) 838-6113
4. Date checklist prepared:
April 30, 2018; Rev 1: April 2, 2020, Rev 2: November, 2021; February, 2023: December 21, 2023; Rev 3
5. Agency requesting checklist:
City of Federal Way
6. Proposed timing or schedule (including phasing, if applicable):
Land Use Process Approval – 2024
Site Work – 2024
Construction – 2025
Completion - 2026
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 proposal is a single project that will not require future additions, or further activity outside of
site development and building construction.
8. List any environmental information you know about that has been prepared, or will be prepared,
directly related to this proposal.
Revised Tree and Vegetation Retention Plan, by Washington Forestry Consultants, Inc., dated
02/18/2020; Rev 11/2021.
Forest Management/Maintenance Plan, by Washington Forestry Consultants, Inc., dated
03/23/2020.
Critical Areas Report and Conceptual Mitigation Plan by Talasaea, dated 10/27/2017; Rev: 04/2020
Addendum to April 2020 Critical Areas Report and Proposed Mitigation Plan by Wet.land, dated
10/2021; Revised 2/9/2023; Revised 12/1/2023.
Geotechnical Report by GeoEngineers, dated 01/10/20.
Pavement Analysis by GeoEngineers, dated 8/29, revised 08/2021.
SEPA Environmental checklist (WAC 197-11-960) January 2023 Page 3 of 19
Traffic Impact Analysis by TENW, dated 04/18, Rev. 03/20, Rev. 07/2020; Updated 9/3/2021., Rev.
10/13/2023.
Parking Analysis by TENw dated 03/10/2020; Rev. 09/2021; Rev 11/29/2023.
Noise Study by Ramboll dated 03/31/20.
Air Quality Report by Ramboll dated 03/31/20.
Preliminary Technical Information Report by ESM Consulting Engineers, LLC, dated 03/31/20; Rev.
11/2021; Rev; 12/07/2023.
Visual Impact Exhibit prepared by Craft Architects, dated 3/22/2018; Rev. by Nelson dated 11/2021;
Rev 12/07/2023.
Visual Impact Study and Letter by Nelson, dated 11/3/2022; Rev 12/07/2023.
JARPA prepared by Talasaea and submitted to United States Army Corps of Engineers on 10/19/2017.
Traffic Concurrency Review by the City of Federal Way, submitted 11/11/2019.
Archeological Resources Survey by Cardno, dated March 26, 2018.
SEPA Memo by Parametrics, January Tavel, dated 12/19/2023
Greenline Business Park- DAHP Correspondence dated 10/2020.
Tavel, January, and Corey Lentz. 2023. Federal Way Woodbridge Business Park Project: Historic
Resources Effects Assessment, Federal Way, Washington. January 3. Report prepared for Federal Way
BP LLC, Los Angeles. Report prepared by ICF, Seattle. On file, Federal Way BP LLC, Los Angeles.
Ferris, Jennifer. 2022. Archaeology Review of Woodbridge Business Park Project. December 23. Report
prepared for Federal Way BP LLC, Los Angeles. Report prepared by HDR, Inc., Bellevue. On file, Federal
Way BP LLC, Los Angeles.
Sadlier, Michelle, Becky Strickler, and Jennifer Ferris. 2020. Built Environment Survey of the Former
Weyerhaeuser Corporate Headquarters Campus, Federal Way, Washington. July 29. Cardno, Seattle,
Washington. Prepared for Federal Way Campus, LLC, Los Angeles, California. On file, Federal Way BP,
LLC, Los Angeles.
Stipe, Frank. 2017. Greenline Business Park Property Cultural Resource Survey. Tetra Tech, Bothell.
Prepared for Talasaea Resource & Environmental Planning, Woodinville. On file, Federal Way BP, LLC,
Los Angeles.
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.
A Joint Aquatic Resource Permit Application has been submitted to USACE and DOE for review. The City of
Federal Way is currently processing their City Center Access Project which may have an effect on this
project.
10. List any government approvals or permits that will be needed for your proposal, if known.
Section 404 U.S. Army Corps of Engineers, Commercial Grade & Fill City of Federal Way, SEPA Threshold
Determination, Process IV Land Use Review, City Critical Areas Review, NPDES Construction Stormwater
Discharge Permit, Right-of-Way Use Permit, Forest Practice Class-IV- General Application, Building Permits,
Developer Extension Agreements with Lakehaven.
11. Give a 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.)
SEPA Environmental checklist (WAC 197-11-960) January 2023 Page 4 of 19
The proposal for Woodbridge Business Park (formerly known as Greenline) seeks to develop 3 new
buildings of varying sizes. The existing Weyerhaeuser Technology Center building will remain; however, the
parking lot associated with the Tech Center will be reconfigured to allow for construction of the new
buildings. Building 1 will be ±605,195 SF in size, Building 2 will be ±240,675 SF in size, and Building 3 will be
±125,520 SF in size. Site access will be provided via 4 new driveways located on Weyerhaeuser Way S.
Right-of-Way dedication and frontage improvements along Weyerhaeuser Way S. are also proposed as part
of the Woodbridge Business Park Development. The proposal will also require impacts to some of the
wetlands on site with mitigation for wetland fill to be provided through the In Lieu Fee program.
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.
A site plan with vicinity map has been included with the Land Use Application package. The current site
address for the Weyerhaeuser Technology Center (WTC) is 32901 Weyerhaeuser Way S, Federal Way, WA
98001. The northern portion of the development is located in the NE Quarter, of Section 16, Township 21,
Range 4. The southern portion of the development is located in the SE Quarter of Section 16, Township 21,
Range 4. See Exhibit A of the title report included with the Land Use application for a complete legal
description of the property.
The largest building will be located directly north of the WTC and the two other buildings will be located
directly south of the WTC.
SEPA Environmental checklist (WAC 197-11-960) January 2023 Page 5 of 19
B. Environmental Elements
1. Earth Find help answering earth questions
a. General description of the site:
The site slopes does to the west and south from about Elevation 450 feet in the northwest to about
Elevation 394 feet in the south.
Circle or highlight one: Flat, rolling, hilly, steep slopes, mountainous, other:
b. What is the steepest slope on the site (approximate percent slope)?
±15%
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.
Varying thicknesses of forest duff and/or topsoil and sod were encountered from ground surface to depths
ranging from about 1 to 18 inches in most of the explorations. All explorations encountered and were
terminated in glacial deposits. Dense to very dense glacial till was typically encountered beneath a loose to
dense or stiff to very stiff weathered till.
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.
The purpose of site fill and grade activities is to provide relatively flat building and parking surfaces. Based
on the preliminary engineering plans, there will be ±283,600 cubic yards of cut and ±243,800 cubic yards of
fill for a net cut quantity of ±39,800 cubic yards, plus an additional ±112,000 cubic yards of stripping. During
final engineering, additional work will be done to balance the site.
f. Could erosion occur because of clearing, construction, or use? If so, generally describe.
Erosion could occur as a result of clearing and construction, particularly if earthwork is completed during
periods of rainfall. TESC measures will be implemented as approved by the City prior to construction.
g. About what percent of the site will be covered with impervious surfaces after project construction (for
example, asphalt or buildings)?
Approximately 60 acres of the total approximately 97.6 acres (±61%) of the site will be covered with
existing, new and replaced impervious surfaces.
h. Proposed measures to reduce or control erosion, or other impacts to the earth, if any.
The owner will implement a City-approved, erosion control plan during earthwork and construction
activities.
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2. Air Find help answering air questions
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.
Please see the “Air Quality Technical Report” dated March 2020 prepared by Ramboll for detailed
information. The report explains that temporary changes to air quality could occur during construction.
Some heavy machinery exhaust and dust particulates generated primarily by construction equipment.
b. Are there any off-site sources of emissions or odor that may affect your proposal? If so,
generally describe.
No
c. Proposed measures to reduce or control emissions or other impacts to air, if any.
All construction equipment will be in proper working order and regulated for emissions by the
manufacturer and local emissions laws. Vehicles entering and leaving the site will also be regulated for
emissions by state and local emissions laws. During construction the site will be watered as necessary to
keep any dust from impacting surrounding air quality.
3. Water Find help answering water questions
a. Surface Water: Find help answering surface water questions
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 is one man-made, fish-bearing stream on site that originates from the discharge point of the current,
on-site stormwater pond that serves the existing Tech Center. There are 23 wetlands within the Site. North
Lake lies to the east of the Site. See attached “Critical Areas Report and Conceptual Mitigation Plan”
prepared by Talasaea Consultants, Inc., dated October 27, 2017, revised April 2020, and the “Addendum to
the April 2020 Critical Areas Report” by Wet.land dated October 2021, revised February 2023 and
December 2023 for more details. All surface water bodies on site ultimately discharge to the man-made
Weyerhaeuser Pond which eventually flows into Hylebos Creek to the south via surface or groundwater
connections.
2. Will the project require any work over, in, or adjacent to (within 200 feet) the described waters? If
yes, please describe and attach available plans.
Yes. Approximately 8,436 SF of wetlands will be directly impacted (filled) and approximately 7,317 SF will
be indirectly impacted (provided less than full buffers). The applicant is proposing the following mitigation:
buffer replacement (14,567 SF), buffer reestablishment (4,754 SF), buffer enhancement (15,777 SF), buffer
restoration and participation in the DOE’s In Lieu Fee program. While no impacts are proposed to the onsite
stream, the stormwater pond which provides the majority of flow to the stream will be modified as part of
the proposed development. See attached mitigation plans and report prepared by Wet.Land for more
details.
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.
SEPA Environmental checklist (WAC 197-11-960) January 2023 Page 7 of 19
Total wetland fill will equal ±8,436 square feet as noted on the plans and in the Critical Areas
Report Addendum by Wet.land. Source of fill will be from site native soil or structural fill
from an approved provider.
4. Will the proposal require surface water withdrawals or diversions? Give a 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.
b. Ground Water: Find help answering ground water questions
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 a 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 (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):
a) 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.
Run-off from impervious surfaces will be collected and directed into on-site stormwater
detention and water quality treatment facilities. Once detained and treated for water quality,
the storm water will be released to the downstream system. Please see the most recently
revised Technical Information Report prepared by ESM Consulting Engineers for further details.
b) Could waste materials enter ground or surface waters? If so, generally describe.
Not as proposed.
c) Does the proposal alter or otherwise affect drainage patterns in the vicinity of the site? If
so, describe.
No, the stormwater system has been designed to discharge at the natural locations.
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d) Proposed measures to reduce or control surface, ground, and runoff water, and drainage
pattern impacts, if any.
The project contractors, users, and personnel will utilize onsite Best Management Practices.
Attached drainage plans show runoff from impervious surfaces will be directed to onsite
stormwater detention ponds.
4. Plants Find help answering plants questions
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.
X 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?
Approximately 58.2 acres of native and non-native, trees and shrubs will be removed during site
construction.
c. List threatened and endangered species known to be on or near the site.
No native threatened or endangered plant species were observed or known to occur on or
immediately adjacent to the site.
d. Proposed landscaping, use of native plants, or other measures to preserve or enhance
vegetation on the site, if any.
Buffer enhancement with native trees and shrubs will be done as appropriate and landscaping
will be installed to meet the appropriate City code. Pursuant to the CZA, the campus Forester
will continue to manage the forested areas of the site.
e. List all noxious weeds and invasive species known to be on or near the site.
Himalayan blackberry, English ivy, English holly, creeping buttercup.
5. Animals Find help answering animal questions
a. List any birds and other animals that have been observed on or near the site or are known
to be on or near the site.
Examples include:
Birds: hawk, heron, eagle, songbirds, other:
Mammals: deer, bear, elk, beaver, other: Rabbits, Squirrels, and Coyote
Fish: bass, salmon, trout, herring, shellfish, other: No fish were observed within the
onsite stream; North Lake is stocked with rainbow trout and has large-mouth bass.
SEPA Environmental checklist (WAC 197-11-960) January 2023 Page 9 of 19
b. List any threatened and endangered species known to be on or near the site.
No listed species are known to occur on or near the site. Bald eagles are known to periodically
use North Lake, which is near the site, for foraging.
c. Is the site part of a migration route? If so, explain.
The entire region is known to be part of the Pacific Flyway. The Pacific Flyway includes Alaska
and the Aleutian Islands and the Rocky Mountains and Pacific coast regions of Canada the
United States and Mexico, south to where it becomes blended with other flyways in Central and
South America. However, the site is not known to be used by migratory fowl.
d. Proposed measures to preserve or enhance wildlife, if any.
The development will be surrounded by open spaces, including forest buffers, a meadow,
wetlands, and landscaping.
e. List any invasive animal species known to be on or near the site.
Bullfrogs and large-mouth bass.
6. Energy and Natural Resources Find help answering energy and natural resource questions
1. 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.
Electrical energy will be the primary source of power serving the project. Natural gas may be
used to satisfy incidental energy needs.
2. Would your project affect the potential use of solar energy by adjacent properties? If so,
generally describe.
No. Proposed building heights are not expected to exceed ±45 feet above grade. No existing
development utilizes solar energy in proximity to which the shadows cast from the buildings will
have any effect.
3. 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.
No energy conservation features have been designed into the plans at this time. Energy
conservation will be addressed with the building permit documents.
7. Environmental Health Find help with answering environmental health questions
a. Are there any environmental health hazards, including exposure to toxic chemicals, risk of
fire and explosion, spill, or hazardous waste, that could occur because of this proposal? If
so, describe.
None known.
1. Describe any known or possible contamination at the site from present or past uses.
The property is found within the Tacoma Smelter Plume. However, the predicted arsenic
concentration is under 20 ppm; below the state cleanup levels.
SEPA Environmental checklist (WAC 197-11-960) January 2023 Page 10 of 19
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 is a buried, 14-inch Olympic oil pipeline that runs through the west side of the project
site. There is also a buried gas main that runs north/south through the northeast portion of the
site.
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 known at this time.
4. Describe special emergency services that might be required.
None anticipated.
5. Proposed measures to reduce or control environmental health hazards, if any.
State regulations regarding safety and the handling of hazardous materials will be followed
during the construction process. Equipment refueling areas would be located in areas where
spill could be quickly contained and where the risk of hazardous materials entering surface
water is minimized.
b. Noise
1. What types of noise exist in the area which may affect your project (for example: traffic,
equipment, operation, other)?
The primary source of noise near the project site is from vehicular traffic along Weyerhaeuser
Way S and Interstate-5. It is not anticipated to impact the proposed project in any way.
2. What types and levels of noise would be created by or associated with the project on a
short-term or a long-term basis (for example: traffic, construction, operation, other)?
Indicate what hours noise would come from the site)?
A noise report was prepared by Ramboll US Corporation, “Environmental Noise Report”, dated
March 2020. The report explains that short-term impacts would result from the use of
construction equipment during the site development. Construction would occur during
permitted construction hours and always in compliance with the City of Federal Way noise
regulations. Long-term impacts would be those vehicular trips associated with R&D,
distribution, manufacturing or office-type uses. Noise generated from the proposed building
and office operations is not expected to impact surrounding properties.
3. Proposed measures to reduce or control noise impacts, if any.
Construction activity will be limited to permitted construction hours and construction
equipment will not be allowed to idle for continuous periods of time, which will help mitigate
the impacts of potential construction noise.
8. Land and Shoreline Use Find help answering land and shoreline use questions
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.
SEPA Environmental checklist (WAC 197-11-960) January 2023 Page 11 of 19
Existing uses on these parcels include the Weyerhaeuser Technology Center, passive and active
private recreation spaces, access and parking areas, and stormwater facilities. Uses on adjacent
properties include public boat launch, fishing, and recreational access on North Lake and the
new DaVita office building to the north.
This proposal is in conformance with the Concomitant Agreement made by and between the
City of Federal Way and Weyerhaeuser Company on August 23, 1994, as well as the applicable
portions of the 1994 Federal Way Code that were in effect at that time.
North- Office Park (OP-01)
East- North Lake, Single Family Residential
West- Interstate-5
South- Corporate Park (CP-01)
Based upon the information and studies conducted to date and proposed mitigation, the
proposal will not have an effect 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 because 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. The site exists on land previously owned by Weyerhaeuser Company and occupied
by the Weyerhaeuser Technology Center, which is to remain.
c. Describe any structures on the site.
The Weyerhaeuser Technology Center is used as warehouse space and also includes lab spaces
for research and development and office space. The shape of the building is slightly irregular but
primarily rectangular. The front façade is covered with glass windows the exterior construction
is primarily reinforced concrete. The site also contains various small permanent and temporary
structures that support the WTC.
d. Will any structures be demolished? If so, what?
Temporary and ancillary structures that are no longer needed to support the current uses
within the building will be removed as part of the project.
e. What is the current zoning classification of the site?
CP-1
f. What is the current comprehensive plan designation of the site?
Corporate Park
g. If applicable, what is the current shoreline master program designation of the site?
N/A
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h. Has any part of the site been classified as a critical area by the city or county? If so,
specify.
Yes. The Critical Areas Report and Addendum prepared by Wet.Land depicts 23 wetlands and
one stream within the Site. North Lake lies to the east of the Site; however, its regulated
shorelands (200’) do not reach the site.
i. Approximately how many people would reside or work in the completed project?
It is anticipated that approximately 900± people would work at the completed project over
varying shifts.
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 will be developed in accordance with applicable City of Federal Way development
and land use codes and the approved 1993 Annexation and Concomitant Agreement to ensure
the project is consistent with the goals and policies of the Comprehensive Plan and applicable
Development Regulations.
m. Proposed measures to reduce or control impacts to agricultural and forest lands of long-
term commercial significance, if any.
None proposed.
9. Housing Find help answering housing questions
a. Approximately how many units would be provided, if any? Indicate whether high, middle,
or low-income housing.
N/A
b. Approximately how many units, if any, would be eliminated? Indicate whether high,
middle, or low-income housing.
N/A
c. Proposed measures to reduce or control housing impacts, if any.
N/A
10. Aesthetics Find help answering aesthetics questions
a. What is the tallest height of any proposed structure(s), not including antennas; what is
the principal exterior building material(s) proposed?
± 45 feet, 1- story, concrete, tilt-up walls. Please see the proposed elevation plans provided
with this project, which match those previously approved and built for nearby projects known
as Woodbridge Buildings A and B.
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b. What views in the immediate vicinity would be altered or obstructed?
There is a 100’ managed forested buffer running parallel to I-5 and a 25’ managed forest buffer
running parallel to the northern property line. Views north from S 336th ST may be altered
slightly by the addition of Buildings 2 and 3. No known regulated views will be impacted. Please
see the “Visual Renderings” by Nelson.
c. Proposed measures to reduce or control aesthetic impacts, if any.
The 1993 Concomitant and Pre-Annexation Zoning Agreement (CZA) provided measures to
control aesthetic impacts through the requirement of the managed forest buffers as well as the
landscape provisions of the land use code. Please see the “Visual Renderings” by Nelson, for
details on views from Interstate 5, S 336th St, Weyerhaeuser Way S and the Headquarters
Building. Furthermore, the buildings have been designed to meet the City’s current design
guidelines in case any portions of the buildings are visible from the surrounding public spaces.
Furthermore, the Project Forester may choose to plant additional trees and shrubs at any time
to help control aesthetic impacts.
11. Light and Glare Find help answering light and glare questions
a. What type of light or glare will the proposal produce? What time of day would it mainly
occur?
Parking lot lighting would occur dusk through dawn at the completed project. Minimal glare
would occur from sunlight reflected off parked cars. Additionally, the headlights of traveling
vehicles could occur any time of day.
b. Could light or glare from the finished project be a safety hazard or interfere with views?
No.
c. What existing off-site sources of light or glare may affect your proposal?
None.
d. Proposed measures to reduce or control light and glare impacts, if any.
The proposed managed forest buffers surrounding the project site will act as a measure to
reduce any potential light and glare impacts.
12. Recreation Find help answering recreation questions
a. What designated and informal recreational opportunities are in the immediate vicinity?
Private, pedestrian trails meander throughout property, and a public fishing access is located on
North Lake to the east.
b. Would the proposed project displace any existing recreational uses? If so, describe.
A portion of the private trails on site are within the areas proposed for development and will be
removed. The CZA does not require protection of any of the informal trails on the property.
c. Proposed measures to reduce or control impacts on recreation, including recreation
opportunities to be provided by the project or applicant, if any.
Continuous sidewalks will be installed along both sides of the project frontage on Weyerhaeuser
Way S which will provide for pedestrian connectivity.
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13. Historic and Cultural Preservation Find help answering historic and cultural preservation
questions
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.
The Weyerhaeuser Technology Center was constructed in 1978 and is located on the site. The
Weyerhaeuser Headquarters building located near the site was constructed in 1969. Pursuant
to CFR 36, Chapter I, subsection 60.4 criteria for evaluation, the Weyerhaeuser Headquarters
building is eligible for listing. Please see the SEPA Memo included with this resubmittal, which
was prepared by January Tavel of Parametrics, dated December 18, 2023 for further
information.
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 known landmarks or evidence have been observed on or near the project 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.
The methods used to assess the potential impacts included GIS data analysis and WISAARD GIS
data review. The applicant consulted with the State Historic Preservation Officer (SHPO) and
the Department of Archaeology and Historic Preservation (DAHP) regarding the site’s eligibility
for listing in the National Register of Historic Places. DAHP concurred that the site is eligible and
the project will have an adverse effect on the property.
As listed under section A.8. above, the following reports and studies have been conducted on
the site and surrounding properties:
Archeological Resources Survey by Cardno, dated March 26, 2018.
Tavel, January, and Corey Lentz. 2023. Federal Way Woodbridge Business Park Project:
Historic Resources Effects Assessment, Federal Way, Washington. January 3. Report
prepared for Federal Way BP LLC, Los Angeles. Report prepared by ICF, Seattle. On file,
Federal Way BP LLC, Los Angeles.
Ferris, Jennifer. 2022. Archaeology Review of Woodbridge Business Park Project. December
23. Report prepared for Federal Way BP LLC, Los Angeles. Report prepared by HDR, Inc.,
Bellevue. On file, Federal Way BP LLC, Los Angeles.
Sadlier, Michelle, Becky Strickler, and Jennifer Ferris. 2020. Built Environment Survey of the
Former Weyerhaeuser Corporate Headquarters Campus, Federal Way, Washington. July 29.
Cardno, Seattle, Washington. Prepared for Federal Way Campus, LLC, Los Angeles,
California. On file, Federal Way BP, LLC, Los Angeles.
Stipe, Frank. 2017. Greenline Business Park Property Cultural Resource Survey. Tetra Tech,
Bothell. Prepared for Talasaea Resource & Environmental Planning, Woodinville. On file,
Federal Way BP, LLC, Los Angeles.
SEPA Environmental checklist (WAC 197-11-960) January 2023 Page 15 of 19
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.
A Monitoring and Inadvertent Discovery Plan (MIDP) will be developed, which will outline the
steps to be taken by the applicant to minimize potential impacts to any currently unknown
intact archeological resources in the event of an inadvertent discovery during construction. If
any such historic or cultural evidence is encountered during construction or installation of
improvements, work will be halted in the area and a state-approved archeologist/historian will
be engaged to investigate, evaluate and/or move or curate such resources, as appropriate.
Impacts to historical resources, if any, will be limited to temporary and will be mitigated
through additional landscaping as necessary.
14. Transportation Find help with answering transportation questions
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.
The project site is primarily served by Weyerhaeuser Way S, with its southern boundary
bordered by the roundabout intersection with S 336th St. There are 4 access points proposed
along Weyerhaeuser Way S, which connects to Hwy-18 to the south and S 320 th St to the
north. Both roadways connect to Interstate 5.
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?
The site is serviced by Pierce County Transit route 501. The closest transit stop is located
within a half mile to the south near the roundabout at S 336th St and Weyerhaeuser Way S.
c. 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).
Yes, the frontage along Weyerhaeuser Way South will require frontage improvements along
both sides of the frontage roadways per City of Federal Way Road Section K. Section K
provides 3 vehicle lanes (2 for each direction of travel plus a turning lane), a 5’ bike lane (for
each direction of travel), a 6’ planter strip, and 8’ feet of sidewalk on both sides of the street.
The project will also reserve 106’ along its northern boundary for future ROW for the S 324th
St extension, and it will provide the necessary dedication and improvements on a small
portion of its frontage on S 336th St, along its southern boundary.
d. Will the project or proposal use (or occur in the immediate vicinity of) water, rail, or air
transportation? If so, generally describe.
Not expected.
e. 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) January 2023 Page 16 of 19
For a total new building area of approximately 972,000 SF, the site is estimated to generate
3,063 new vehicle trips per day with 389 trips occurring during the weekday AM peak hour
and 389 trips during the weekday PM peak hour, as explained in the “Updated Traffic Impact
Analysis” report, conducted by TENw, dated March 17, 2020, Rev September 3, 2021 and
October 13, 2023. Trucks are estimated to account for approximately 18% of daily site trips
and approximately 10% of the AM and PM peak site trips. These estimates were based on the
ITE Trip Generation Manual, 10th edition.
f. 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.
Not expected.
g. Proposed measures to reduce or control transportation impacts, if any.
The project is proposing frontage improvements to Weyerhaeuser Way South and a small
portion of S 336th St, and payment of the City’s transportation impact fees is expected, which
will help fund City-wide transportation improvements. The project will also provide full
pavement reconstruction on Weyerhaeuser Way S from S 320th St to the truck entrance to
Woodbridge, Buildings A and B, and add 2 additional south bound right turn lanes primarily for
truck access into the Woodbridge Business Park.
15. Public Services Find help answering public service questions
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.
The completed project would result in a slight increased need for public services to include fire
protection, police protection, and health care.
b. Proposed measures to reduce or control direct impacts on public services, if any.
The increased demand will be offset by impact fees, levies, and taxes required to be paid by the
applicant as part of this development.
16. Utilities Find help answering utilities questions
a. Circle utilities currently available at the site: electricity, natural gas, water, refuse service,
telephone, sanitary sewer, septic system, other:
The above listed utilities are either available on-site or will be extended as necessary to serve
the site.
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.
Lakehaven Utility District will provide water and sewer connection.
Puget Sound Energy will supply electricity and gas
Telephone: Century Link, Verizon, Comcast
Fire Protection: South King Fire & Rescue
SEPA Environmental checklist (WAC 197-11-960) January 2023 Page 17 of 19
C. Signature Find help about who should sign
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.
X____________________
Type name of signee: Eric G. LaBrie
Position and agency/organization: President, ESM Consulting Engineers, LLC
Date submitted: December 21, 2023
SEPA Environmental checklist (WAC 197-11-960) January 2023 Page 18 of 19
D. Supplemental sheet for nonproject actions Find help for the nonproject actions worksheet
IT IS NOT REQUIRED to use this section 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:
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:
SEPA Environmental checklist (WAC 197-11-960) January 2023 Page 19 of 19
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.