HomeMy WebLinkAboutORD 5610CITY OF RENTON, WASHINGTON
ORDINANCE NO. 5610
AN ORDINANCE OF THE CITY OF RENTON, WASHINGTON, ESTABLISHING A
PLANNED ACTION FOR THE SUNSET AREA PURSUANT TO THE STATE
ENVIRONMENTAL POLICY ACT.
THE CITY COUNCIL OF THE CITY OF RENTON, WASHINGTON, DOES ORDAIN AS
FOLLOWS:
SECTION I. Findings. The Council finds as follows:
A. The City is subject to the requirements of the Growth Management Act, RCW
36.70A ("GMA") and is located within an Urban Growth Area;
B. The City has adopted a Comprehensive Plan complying with the GMA, and is
amending the Comprehensive Plan to address transportation improvements and capital
facilities specific to the Sunset Area;
C. The City has adopted a Community Investment Strategy, development
regulations and design guidelines specific to the Sunset Area which will guide growth and
revitalization of the area, including the Sunset Terrace public housing project;
D. The City has prepared an EIS for the Sunset Area, and the EIS adequately
addresses the probable significant environmental impacts associated with the type and amount
of development planned to occur in the designated Planned Action area;
E. The mitigation measures identified in the Planned Action EIS and attached to this
ordinance as Attachment B, together with adopted City development regulations, will
adequately mitigate significant impacts from development within the Planned Action area;
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ORDINANCE NO. 5610
F. The Comprehensive Plan and Planned Action EIS identify the location, type and
amount of development that is contemplated by the Planned Action;
G. Future projects that are implemented consistent with the Planned Action will
protect the environment, benefit the public and enhance economic development;
H. The City has provided numerous opportunities for meaningful public
involvement in the proposed Planned Action, has considered all comments received, and, as
appropriate, has modified the proposal or mitigation measures in response to comments;
I. The Sunset Area Planned Action is not an essential public facility as defined by
RCW 36.70A.200(1);
J. The Planned Action area applies to a defined area that is smaller than the overall
City boundaries; and
K. Public services and facilities are adequate to serve the proposed Planned Action.
SECTION II. Procedures and Criteria for Evaluating and Determining Projects as
Planned Actions.
A. Planned Action Area. The Planned Action designation shall apply to the area
shown in Attachment A.
B. Environmental Document. A Planned Action determination for a site-specific
implementing project application shall be based on the environmental analysis contained in the
Draft EIS issued by the City on December 17, 2010, and the Final EIS published on April 1, 2011.
The Draft and Final EISs shall comprise the Planned Action EIS. The mitigation measures
contained in Attachment B are based upon the findings of the Planned Action EIS and shall,
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ORDINANCE NO. 5610
along with adopted City regulations, provide the framework that the City will use to impose
appropriate conditions on qualifying Planned Action projects.
C. Planned Action Designated. Land uses and activities described in the Planned
Action EIS, subject to the thresholds described in subsection II.D and the mitigation measures
contained in Attachment B, are designated Planned Actions or Planned Action Projects
pursuant to RCW 43.21C.031. A development application for a site-specific Planned Action
project located within the Sunset Area shall be designated a Planned Action if it meets the
criteria set forth in subsection II.D of this ordinance and applicable laws, codes, development
regulations and standards ofthe City.
D. Planned Action Qualifications. The following thresholds shall be used to
determine if a site-specific development proposed within the Sunset Area is contemplated by
the Planned Action and has had its environmental impacts evaluated in the Planned Action EIS:
(1) Land Use.
(a) The following general categories/types of land uses are
considered Planned Actions: Single family and multi-family residential; schools; parks;
community and public facilities; office and conference; retail; entertainment and recreation;
services; utilities; and mixed-use development incorporating more than one use category
where permitted.
(b) Individual land uses considered as Planned Actions shall include
those uses specifically listed in RMC 4-2-060 as permitted or conditionally permitted in the
zoning classifications applied to properties within the Planned Action area provided they are
consistent with the general categories / types of land uses in (l)(a).
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ORDINANCE NO. 5610
(2) Development Thresholds.
(a) The following amount of various new land uses are anticipated by
the Planned Action:
Land Use Development Amount
Alternative 3 FEIS Preferred Alt
Residential 2,506 units 2,339 units
Schools 57,010 gross square feet 57,010 gross square feet
Parks 0.25 acres 3 acres
Office/Service 776,805 gross square
feet
745,810 gross square
feet
Retail 476,299 gross square
feet
457,119 gross square
feet
(b) The following infrastructure and utilities are considered planned
actions: roadways, water, wastewater, and stormwater facilities identified and studied in the
EIS.
(c) Shifting development amounts between categories of uses may
be permitted so long as the total build-out does not exceed the aggregate amount of
development and trip generation reviewed in the EIS, and so long as the impacts of that
development have been identified in the Planned Action EIS and are mitigated consistent with
Attachment B.
(d) If future development proposals in the Planned Action area
exceed the development thresholds specified in this ordinance, further environmental review
may be required pursuant to WAC 197-11-172. Further, if proposed development would alter
the assumptions and analysis in the Planned Action EIS, further environmental review may be
required.
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ORDINANCE NO. 5610
(3) Transportation - Trip Ranges and Thresholds. The number of new PM
Peak Hour Trips anticipated in the Planned Action area and reviewed in the EIS are as follows:
Alternative/Period PM Peak Hour Trips*
2006 2,082 trips
2030 Alternative 3 5,555 trips
2030 Preferred Alt 5,386 trips
Net increase from 2006 -> 2030
Alternative 3
3,473 trips
Net increase from 2006 -> 2030 Preferred
Alternative
3,304 trips
*all P.M. peak hour trips with at least one end (origin, destination, or both) in TAZs
containing the study area
Uses or activities that would exceed the range of maximum trip levels will require
additional SEPA review.
(4) Changed Conditions. Should environmental conditions change
significantly from those analyzed in the Planned Action EIS, the City's SEPA Responsible Official
may determine that the Planned Action designation is no longer applicable until supplemental
environmental review is conducted.
E. Planned Action Review Criteria.
(1) The City's Environmental Review Committee may designate as "planned
actions", pursuant to RCW 43.21C.030, applications that meet all ofthe following conditions:
(a) The proposal is located within the Planned Action area identified
in Attachment A of this ordinance;
(b) The proposed uses and activities are consistent with those
described in the Planned Action EIS and subsection II.D of this ordinance;
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ORDINANCE NO. 5610
(c) The proposal is within the Planned Action thresholds and other
criteria of subsection II.D of this ordinance;
(d) The proposal is consistent with the City of Renton Comprehensive
Plan and applicable zoning regulations;
(e) The proposal's significant adverse environmental impacts have
been identified in the Planned Action EIS;
(f) The proposal's significant impacts have been mitigated by
application of the measures identified in Attachment B, and other applicable City regulations,
together with any modifications or variances or special permits that may be required;
(g) The proposal complies with all applicable local, state and/or
federal laws and regulations, and the Environmental Review Committee determines that these
constitute adequate mitigation; and
(h) The proposal is not an essential public facility as defined by RCW
36.70A.200(1).
(2) The City shall base its decision on review of a SEPA checklist, or an
alternative form approved by the Department of Ecology, and review of the application and
supporting documentation.
(3) A proposal that meets the criteria of this section shall be considered to
qualify and be designated as a planned action, consistent with the requirements of RCW
43.21C.030, WAC 197-11-164 et seq, and this ordinance.
F. Effect of Planned Action.
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ORDINANCE NO. 5610
(1) Designation as a planned action project means that a qualifying proposal
has been reviewed in accordance with this ordinance and found to be consistent with its
development parameters and thresholds, and with the environmental analysis contained in the
Planned Action EIS.
(2) Upon determination by the City's Environmental Review Committee that
the proposal meets the criteria of subsection II.D and qualifies as a planned action, the proposal
shall not require a SEPA threshold determination, preparation of an EIS, or be subject to further
review pursuant to SEPA.
G. Planned Action Permit Process. Applications for planned actions shall be
reviewed pursuant to the following process:
(1) If the project is determined to qualify as a Planned Action, it shall
proceed in accordance with the applicable permit review procedures specified in RMC 4-8-080G
and 4-9, except that no SEPA threshold determination, EIS or additional SEPA review shall be
required. The decision of the Environmental Review Committee regarding qualification as a
Planned Action shall be final.
(2) Public notice and review for projects that qualify as Planned Actions shall
be tied to the underlying permit. The review process for the underlying permit shall be as
provided in RMC 4-8-080G and 4-9. If notice is otherwise required for the underlying permit,
the notice shall state that the project has qualified as a Planned Action. If notice is not
otherwise required for the underlying permit, no special notice is required by this ordinance.
(3) If a project is determined to not qualify as a Planned Action, the
Environmental Review Committee shall so notify the applicant and prescribe a SEPA review
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ORDINANCE NO. 5610
procedure consistent with the City's SEPA regulations and the requirements of state law. The
notice shall describe the elements ofthe application that result in failure to qualify as a Planned
Action.
(4) Projects that fail to qualify as Planned Actions may incorporate or
otherwise use relevant elements of the Planned Action EIS, as well as other relevant SEPA
documents, to meet their SEPA requirements. The Environmental Review Committee may limit
the scope of SEPA review for the non-qualifying project to those issues and environmental
impacts not previously addressed in the Planned Action EIS.
SECTION III. Monitoring and Review.
A. The City shall monitor the progress of development in the designated Planned
Action area to ensure that it is consistent with the assumptions of this ordinance and the
Planned Action EIS regarding the type and amount of development and associated impacts, and
with the mitigation measures and improvements planned for the Sunset Area.
B. This Planned Action ordinance shall be reviewed no later than five (5) years from
its effective date by the Environmental Review Committee to determine the continuing
relevance of its assumptions and findings with respect to environmental conditions in the
Planned Action area, the impacts of development, and required mitigation measures. Based
upon this review, the City may propose amendments to this ordinance and/or may supplement
or revise the Planned Action EIS.
C. At the following time periods, the City shall evaluate the overall sustainability of
the Sunset Area Planned Action area defined in Attachment A consistent with Final EIS
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ORDINANCE NO. 5610
Appendix A review of Goals and Objectives and LEED-ND qualitative evaluation, or an
equivalent approach:
(1) At the time ofthe five (5)-year review in subsection IV.B above.
(2) At the time of a NEPA re-evaluation pursuant to 24 CFR Part 58.53.
D. The City shall conduct a Greenroads evaluation or its equivalent at the time the
NE Sunset Boulevard design is at the 30% design level and at the 60% design level.
E. The City shall review the Potential Sunset Terrace Redevelopment Subarea at the
time ofthe five (5)-year review in subsection III.B in relation to the following evaluation criteria:
(1) Contribution of final conceptual designs to 2030 Regional Vehicle Miles
Travelled (VMT) consistent with Final EIS Table 3.2-4, Sunset Terrace Redevelopment Subarea
Contribution to Forecast 2030 Regional VMT.
(2) Changes in land use and population growth and resulting greenhouse gas
emissions of final conceptual designs compared to Tables 3.2-5 and 3.2-6 ofthe Final EIS, titled
respectively Assumed Land Use and Population Growth for Greenhouse Gas Emission
Calculations—Potential Sunset Terrace Redevelopment Subarea and Comparison of
Greenhouse Gas Emissions—Potential Sunset Terrace Redevelopment Subarea.
(3) Change in effective impervious area for Sunset Terrace Redevelopment
Subarea compared with Final EIS Preferred Alternative and Alternative 3 which resulted in a
decrease of approximately 0.51 acre (11%) to 1.07 acres (23%) compared to existing conditions
per Table 7 ofthe Planned Action ordinance Attachment B.
SECTION IV. Conflict. In the event of a conflict between this ordinance or any
mitigation measure imposed thereto, and any ordinance or regulation of the City, the
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ORDINANCE NO. 5610
provisions of this ordinance shall control except that the provision of any Uniform Code shall
supersede.
SECTION V. Severability. Should any section, subsection, paragraph, sentence,
clause or phrase of this ordinance or its application be declared to be unconstitutional or invalid
by a court of competent jurisdiction, such decision shall not affect the constitutionality or
validity of the remaining portions of this ordinance or its application to any other person or
situation.
SECTION VI. Effective Date. This ordinance, being an exercise of a power specifically
delegated to the City legislative body, is not subject to referendum, and shall take effect five (5)
days after its passage, approval and publication as provided by law.
PASSED BY THE CITY COUNCIL this JJ^thday of June , 2011.
Bonnie I. Walton, City Clerk
APPROVED BY THE MAYOR this 13th day of June , 2011.
Denis Law, Mayor
Approved as to form: *
Lawrence J. Warren, City Attorney
Date of Publication: 6/17/2011 (summary)
ORD.1705:5/13/ll:scr
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ORDINANCE NO. 5610
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ICF Attachment A
Planned Action Study Area
Sunset Area Community Planned Action Final NEPA/SEPA EIS
ORDINANCE NO. 5610
Attachment B: Sunset Area Community Planned Action
EIS Mitigation Measures
Table of Contents
Introduction and Purpose 3
SEPA Terms 3
General Interpretation 3
Summary of Proposal, Alternatives, and Land Capacity 4
Proposal and Alternatives 4
Land Capacity 4
Location 5
Mitigation Document 5
1. Earth 6
2. Air Quality 8
3. Water Resources 14
4. Plants and Animals 17
5. Energy 19
6. Noise 22
7. Environmental Health 24
8. Land Use 27
9. Socioeconomics 29
10. Housing 31
11. Environmental Justice 33
12. Aesthetics 35
13. Historic/Cultural 38
14. Transportation 41
15. Parks and Recreation 45
16. Public Services 47
17. Utilities 53
Advisory Notes 58
Attachment 1: Draft EIS, Cultural Resources Appendix J, Plan and Procedures for Dealing
with the Unanticipated Discovery 59
Attachment 2: Figure 3.17-1 Potential Subarea Utility Improvements and Phasing 61
Water 62
Overview 62
Edmonds-Glenwood Phase 1 62
New Library 62
New Mixed-Use Building Adjacent to New Library 63
RHA's Piha Site 63
Planned Action Ordinance 1 Attachment B: Mitigation Document
ORDINANCE NO. 5610
Sunset Terrace Redevelopment 64
Edmonds-Glenwood Phase 2 64
Water Main Costs 65
Wastewater Collection 65
Overview 65
Detailed Discussion 65
List of Tables
Table 1. Summary of Land Capacity— Planned Action Alternatives 5
Table 2. Earth Significant Impacts 6
Table 3. Earth Mitigation Measures 7
Table 4. Air Quality Significant Impacts 8
Table 5. Air Quality Mitigation Measures 11
Table 6. Potential Greenhouse Gas Reduction Measures 12
Table 7. Water Resources Significant Impacts 14
Table 8. Plants and Animals Significant Impacts 17
Table 9. Energy Significant Impacts 19
Table 10. Energy Mitigation Measures 21
Table 11. Noise Significant Impacts 22
Table 12. Noise Mitigation Measures 23
Table 13. Environmental Health Impacts 24
Table 14. Environmental Health Mitigation Measures 25
Table 15. Land Use Impacts 27
Table 16. Land Use Mitigation Measures 28
Table 17. Socioeconomics Impacts 29
Table 18. Socioeconomics Mitigation Measures 31
Table 19. Housing Impacts 31
Table 20. Housing Mitigation Measures 33
Table 21. Environmental Justice Impacts 33
Table 22. Environmental Justice Mitigation Measures 35
Table 23. Aesthetic Impacts 35
Table 24. Aesthetic Mitigation Measures 37
Table 25. Historic/Cultural Impacts 38
Table 2 6. Historic/Cultural Mitigation Measures 3 9
Table 27. Transportation Impacts 41
Table 28. Transportation Mitigation Measures 43
Table 29. Parks and Recreation Impacts 45
Table 30. Parks and Recreation Mitigation Measures 46
Table 31. Public Services Impacts 47
Table 32. Public Services Mitigation Measures 51
Table 33. Utilities Impacts 53
Table 34. Utilities Mitigation Measures 55
Planned Action Ordinance 2 Attachment B: Mitigation Document
ORDINANCE NO. 5610
Introduction and Purpose
The State Environmental Policy Act [SEPA] requires environmental review for project and non-
project proposals that are likely to have adverse impacts upon the environment. In order to meet
National Environmental Policy Act (NEPA) and SEPA requirements, the City of Renton issued the
Draft Environmental Impact Statement (DEIS) for the City of Renton Sunset Area Community Planned
Action on December 17, 2010 and the Final Environmental Impact Statement (FEIS) for the City of
Renton Sunset Area Community Planned Action on April 1, 2011. The Draft together with the Final
EIS is referenced herein as the "EIS". The EIS has identified significant beneficial and adverse
impacts that are anticipated to occur with the future development of the Planned Action area,
together with a number of possible measures to mitigate those significant adverse impacts.
The purpose of this Mitigation Document is to establish specific mitigation measures, based upon
significant adverse impacts identified in the EIS. The mitigation measures shall apply to future
development proposals which are consistent with the Planned Action scenarios reviewed in the EIS,
and which are located within the Renton Sunset Area Community Planned Action Study Area (see
Attachment A).
SEPA Terms
As used in this document, the words action, planned action, or proposal are defined as described below.
• "Action" means projects or programs financed, licensed, regulated, conducted or approved by a
governmental Agency. "Project actions" involve decisions on a specific project such as a
construction or management activity for a defined geographic area. "Non-project" actions
involve decisions about policies, plans or programs, (see WAC 197-11-704)
• "Planned Action" refers to types of project actions that are designated by ordinance for a specific
geographic area and addressed in an EIS, in conjunction with a comprehensive plan or subarea
plan, a fully contained community, a master planned resort, a master planned development or
phased project, [see WAC 197-11-164)
• "Proposal" means a proposed action that may be an action and regulatory decision of an agency,
or any action proposed by applicants, (see WAC 197-11-784)
General Interpretation
Where a mitigation measure includes the words "shall" or "will," inclusion of that measure in project
plans is mandatory in order to qualify a project as a Planned Action. Where "should" or "would"
appear, the mitigation measure may be considered by the project applicant as a source of additional
mitigation, as feasible or necessary, to ensure that a project qualifies as a Planned Action.
Unless stated specifically otherwise, the mitigation measures that require preparation of plans,
conduct of studies, construction of improvements, conduct of maintenance activities, etc., are the
responsibility ofthe applicant or designee to fund and/or perform.
Planned Action Ordinance 3 Attachment B: Mitigation Document
ORDINANCE NO. 5610
Summary of Proposal, Alternatives, and Land Capacity
Proposal and Alternatives
The proposal is to redevelop the Sunset Terrace public housing community and promote associated
neighborhood growth and revitalization as part of a Planned Action. Redevelopment of the public
housing community and adoption of a Planned Action Ordinance would encourage redevelopment in
the Planned Action Study Area through land use transformation and growth, public service and
infrastructure improvements, and a streamlined environmental review process. The Renton
Housing Authority (RHA) is the proponent of the proposal's primary development action,
redevelopment of the existing Sunset Terrace public housing community; however, RHA would
likely redevelop the property in partnership with other public and private non-profit and for-profit
developers and agencies. The City of Renton (City) is responsible for public service and
infrastructure improvements for Sunset Terrace and the broader Sunset Area Community
neighborhood, is the agency responsible for streamlining local permitting and environmental review
through this Planned Action, and is the agency that would regulate private neighborhood
redevelopment in accordance with its Comprehensive Plan and development regulations.
The City analyzed three alternatives (Alternatives 1, 2, and 3) as part ofthe Draft EIS to determine
its Preferred Alternative. The Preferred Alternative is evaluated in the Final EIS. All four alternatives
are described below.
Alternative 1 (No Action). RHA would develop affordable housing on two vacant properties, but it
would not redevelop the Sunset Terrace public housing property. Very limited public investment
would be implemented by the City, resulting in lesser redevelopment across the Planned Action
Study Area. A Planned Action would not be designated. The No Action Alternative is required to be
studied under NEPA and SEPA.
Alternative 2. This alternative represents a moderate level of growth in the Planned Action Study
Area based on investment in mixed-income housing and mixed uses in the Potential Sunset Terrace
Redevelopment Subarea, targeted infrastructure and public services throughout the Planned Action
Study Area, and adoption of a Planned Action Ordinance.
Alternative 3. This alternative represents the highest level of growth in the Planned Action Study
Area, based on investment in the Potential Sunset Terrace Redevelopment Subarea with a greater
number dwellings developed in a mixed-income, mixed-use style, major public investment in study
area infrastructure and services, and adoption of a Planned Action Ordinance.
Preferred Alternative. This alternative represents neighborhood growth similar to and slightly less
than Alternative 3 in the Planned Action Study Area, based on investment in the Potential Sunset
Terrace Redevelopment Subarea with a moderate number dwellings developed in a mixed-income,
mixed-use style oriented around a larger park space and loop road, major public investment in study
area infrastructure and services, and adoption of a Planned Action Ordinance.
Land Capacity
To determine future growth scenarios for the next 20 years, a land capacity analysis was prepared.
The alternatives produce different future growth estimates. Each would affect different amounts of
property.
Planned Action Ordinance 4 Attachment B: Mitigation Document
ORDINANCE NO. 5610
• Alternative 1 assumes that about 16% (35 acres) of the 213 net acres of Planned Action Study
Area parcels would infill or redevelop.
• Alternative 2 assumes that about 32% (68 acres) of the Planned Action Study Area parcels
would infill or redevelop.
• Alternative 3 assumes that approximately 40% (84 acres) of the Planned Action Study Area
parcels would infill or redevelop.
• The Preferred Alternative assumes that approximately 40 % (84 acres) of the Planned Action
Study Area parcels would infill or redevelop.
The latter two alternatives - Alternative 3 and the Preferred Alternative which is similar - represent
the higher growth levels studied in the EIS and differ by about 7%; these two alternatives are
considered for the purposes of this mitigation document to be the "Planned Action Alternatives."
This mitigation document is based on the range of growth considered in the Planned Action
Alternatives. More details on the components ofthe alternatives can be found in Final EIS Chapter 2.
Table 1. Summary of Land Capacity— Planned Action Alternatives
Dwelling Units/Jobs
Net New Growth
Dwelling Units/Jobs Alternative 3 Preferred Alternative
Dwelling units 2,506 2,339
Population 5,789 5,403
Employment SF 1,310,113 1,247,444-1,259,944
Jobs 3,330 3,154-3,192
Location
The Sunset Terrace public housing community is generally bounded by Sunset Lane NE and
Glenwood Avenue NE on the north, NE 10th Street on the east, NE Sunset Boulevard (State Route
[SR] 900) on the south, and Edmonds Avenue NE on the west. See Attachment A of the Planned
Action Ordinance.
The Sunset Terrace public housing community is part of the Sunset Area Community neighborhood.
This broader neighborhood is the Planned Action Study Area considered in the EIS; it is generally
bounded by NE 21st Street on the north, Monroe Avenue NE on the east, NE 7th Street on the south,
and Edmonds Avenue NE. See Attachment A of the Planned Action Ordinance.
Mitigation Document
Based on the EIS, this Mitigation Document identifies significant adverse environmental impacts
that are anticipated to occur as a result of development of planned action projects. Mitigation
measures identified in the EIS are reiterated here for inclusion in proposed projects to mitigate
related impacts and to qualify as Planned Action projects.
Consistency review under the Planned Action, development plan review, and other permit approvals
will be required for specific development actions under the Proposed Action pursuant to WAC 197-
Planned Action Ordinance 5 Attachment B: Mitigation Document
ORDINANCE NO. 5610
11-172. Additional project conditions may be imposed on planned action projects based upon the
analysis of the proposal in relationship to independent requirements of the City, state or federal
requirements or review criteria.
Any applicant for a project within the Planned Action area may propose alternative mitigation
measures, if appropriate and/or as a result of changed circumstances, in order to allow equivalent
substitute mitigation for identified impacts. Such modifications shall be evaluated by the City's SEPA
Responsible Official prior to any project approvals by the City.
In combination, regulations applicable to each element of the environment and mitigation measures
identified in the EIS and documented in this Mitigation Document that are applied to any planned
action proposal will adequately mitigate all significant environmental impacts associated with
planned action proposals, except for those impacts that are identified as "significant unavoidable
adverse impacts."
Provided below for each element of the environment analyzed in the EIS for the proposed action are:
(a) summary of significant environmental impacts (construction, operation, indirect and
cumulative);
(b) a summary of unavoidable adverse impacts;
(c) mitigation measures established by this mitigation document for both the Planned
Action Study Area as a whole as well as the Potential Sunset Terrace Redevelopment
Subarea; and
(d) a list of City policies/regulations on which mitigation measures are based.
Advisory notes are included at the end of the document to list the federal, state, and local laws that
act as mitigation measures.
1. Earth
Significant Impacts
Table 2. Earth Significant Impacts
Type of Impact Planned Action Study Area
Potential Sunset Terrace
Redevelopment Subarea
Construction Erosion could increase as a result of soil
disturbance; however, much ofthe
existing soils are glacial outwash
materials with low erosion potential.
Codified best management practices
minimize the potential for both erosion
and erosion transport to waterways.
Construction could require import and
export of earth materials; however,
with minimal planning and protection,
the outwash soils in most of the study
area could be reused as backfill,
minimizing import and export
There is an increased risk of landsliding
Same as Planned Action Study Area
Similar to Planned Action Study Area.
The underlying glacial outwash soils
have the highest potential for reuse
within the Planned Action Study Area
and consequently the subarea.
There are no mapped geologic hazards,
Planned Action Ordinance 6 Attachment B: Mitigation Document
ORDINANCE NO. 5610
Potential Sunset Terrace
Type of Impact Planned Action Study Area Redevelopment Subarea
due to soil disturbance, changing and thus a low potential for impacts.
drainage, or temporarily
oversteepening slopes. However, a
relatively small proportion ofthe study
area is considered either steep slope or
erosion hazard. Both the glacial
outwash and till soils are generally
strong and of low concern regarding
slope instability.
Operations Active seismicity in the Planned Action Same as Planned Action Study Area
Study Area would require that
inhabited structures, including
buildings, bridges, and water tanks, be
designed to withstand seismic loading.
Indirect The major steep slope, erosion, and There are no mapped geologic hazards,
landslide hazard areas within the and thus a low potential for impacts.
Planned Action Study Area extend
beyond the study area boundaries.
Development on the slope above
[inside] the study area boundary could
mcrease the risk of erosion and
landsliding downslope [outside] of the
study area.
Cumulative Same as indirect impacts above; There are no mapped geologic hazards,
intensive development around this and thus a low potential for impacts,
hazard area outside ofthe Planned
Action Study Area by other projects is
not currently anticipated, but could
increase the risk of erosion and
landsliding.
Unavoidable Adverse Impacts
There are no significant unavoidable adverse earth impacts.
Mitigation Measures
Table 3. Earth Mitigation Measures
Planned Action Study Area
The following mitigation measures shall apply to
development throughout the Planned Action
Study Area.
• Apply erosion-control best management
practices [BMPs], as described in Appendix
D of the City of Renton Amendments to the
King County Surface Water Design Manual1.
Potential Sunset Terrace Redevelopment Subarea
Mitigation measures shall be the same as the
Planned Action Study Area, except that there are
no geologic hazard areas to avoid.
1 City of Renton. 2010. City of Renton Amendments to the King County Surface Water Design Manual. February.
Appendix D, Erosion and Sedimentation Control Standards.
Planned Action Ordinance 7 Attachment B: Mitigation Document
ORDINANCE NO. 5610
Planned Action Study Area Potential Sunset Terrace Redevelopment Subarea
« Limit development in geologic hazard areas
and their buffers, or require rigorous
engineered design to reduce the hazard, as
currently codified.
Planned Action applicants shall identify in their
applications the source of earth material to be
used in construction and shall consider earth
material reuse and provide information to the
City regarding why earth material reuse is not
feasible if it is not proposed. The City may
condition the planned action application to
provide for earth material reuse where feasible.
Nexus
City of Renton Comprehensive Plan
RMC 4--3-•050 Critical Areas Regulations
RMC 4-.4. •030 Development Guidelines and Regulations - General
RMC 4-.4. -060 Grading, Excavation and Mining Regulations
RMC 4--5--050 International Building Code
RMC 4--6--030 Drainage (Surface Water] Standards
2. Air Quality
Significant Impacts
Table 4. Air Quality Significant Impacts
Potential Sunset Terrace
Type of Impact Planned Action Study Area Redevelopment Subarea
Construction Dust from excavation and grading Same as Planned Action Study
could cause temporary, localized Area
increases in the ambient
concentrations of fugitive dust and
suspended particulate matter.
Construction activities would likely Same as Planned Action Study
require the use of diesel-powered, Area
heavy trucks and smaller
equipment such as generators and
compressors. These engines would
emit air pollutants that could
slightly degrade local air quality in
the immediate vicinity ofthe
activity.
Some construction activities could Same as Planned Action Study
cause odors detectible to some
Planned Action Ordinance 8 Attachment B: Mitigation Document
ORDINANCE NO. 5610
Type of Impact Planned Action Study Area
Potential Sunset Terrace
Redevelopment Subarea
Operations
Emissions from
Commercial Operations
Emissions From Vehicle
Travel
people in the vicinity ofthe activity,
especially during paving operations
using tar and asphalt. Such odors
would be short-term and localized.
Construction equipment and
material hauling could temporarily
increase traffic flow on city streets
adjacent to a construction area. If
construction delays traffic enough
to significantly reduce travel speeds
in the area, general traffic-related
emissions would increase.
Stationary equipment, mechanical
equipment, and trucks at loading
docks at office and retail buildings
could cause air pollution issues at
adjacent residential property.
However, new commercial facilities
would be required to register their
pollutant-emitting equipment and
to use best available control
technology to minimize emissions.
Tailpipe emissions from vehicles
would be the major source of air
pollutant emissions associated with
growth. The net increases in vehicle
miles travelled (VMT) forecast as a
result of Planned Action
alternatives are inconsequentially
small compared to the Puget Sound
regional VMT and its implied
impact on regional emissions and
photochemical smog. This would
not alter Puget Sound Regional
Council's conclusion that future
regional emissions will be less than
the allowable emissions budgets of
air quality maintenance plans.
Area
Same as Planned Action Study
Area
Same as Planned Action Study
Area
The forecasted VMT from the
subarea is only a small fraction of
the Puget Sound regional totals.
Future emissions from increased
population and motor vehicles in
the subarea would not cause
significant regional air quality
impacts.
Planned Action Ordinance 9 Attachment B: Mitigation Document
ORDINANCE NO. 5610
Type of Impact Planned Action Study Area
Potential Sunset Terrace
Redevelopment Subarea
Air Quality Attainment
Status
Greenhouse Gas Emissions:
Study Area and Subarea
Outdoor Air Toxics
Indoor Air Toxics
Land use density and population
would increase in the Planned
Action Study Area; however, these
increases represent only a small
fraction of the Puget Sound regional
totals. Furthermore, this alternative
would not result in land use
changes that include unusual
industrial developments. Therefore,
development in the Planned Action
Study Area would not cause a
substantial increase in air quality
concentrations that would result in
a change in air quality attainment
status.
Planned Action alternatives are
estimated to result in this
alternative would result in an
estimated 43,050 to 45,766 metric
tons/year of greenhouse gas (GHG)
emissions for the Planned Action
Study Area.
The Planned Action Study Area is in
a mixed-use residential and
commercial zone that does not
include unusual sources of toxic air
pollutants. The major arterial street
through the Planned Action Study
Area (NE Sunset Boulevard) does
not carry an unusually high
percentage of heavy-duty truck
traffic. Thus, the Planned Action
Alternatives would not expose
existing or future residents to
disproportionately high
concentrations of toxic air
pollutants generated by local
emission sources.
See Potential Sunset Terrace
Redevelopment Subarea
Same as Planned Action Study
Area.
Planned Action Alternatives
would result in an estimated
3,760 to 6,612 metric tons/year
of GHG emissions.
Impacts on outdoor air toxics
would be similar to those
described for the Planned Action
Study Area.
RHA development would be
constructed according to local
building codes that require
adequate insulation and
ventilation. Regardless, studies
have shown that residents at
lower-income developments
often suffer higher rates of
respiratory ailments than the
general public. Therefore, the
City and RHA will explore
measures to improve indoor air
quality beyond what is normally
Planned Action Ordinance 10 Attachment B: Mitigation Document
ORDINANCE NO. 5610
Type of Impact Planned Action Study Area
Potential Sunset Terrace
Redevelopment Subarea
Indirect and Cumulative
Greenhouse Gas Emissions:
Subarea, Study Area, and
Region
With the highest level of transit-
oriented development in the study
area ofthe studied alternatives,
Planned Action Alternatives would
provide the greatest regional GHG
emission reductions, a net
reduction of 3,907-4,164 metric
tons/year, compared with the No
Action Alternative studied in the
EIS.
achieved by simply complying
with building codes.
With the highest level of transit-
oriented development in the
subarea ofthe alternatives
studied, Planned Action
Alternatives would provide the
greatest reduction in regional
GHG emissions, a net reduction of
150-467 metric tons/year,
compared with the No Action
Alternative studied in the EIS.
Unavoidable Adverse Impacts
No significant unavoidable adverse impacts on regional or local air quality are anticipated.
Temporary, localized dust and odor impacts could occur during the construction activities. The
regulations and mitigation measures described below are adequate to mitigate any adverse impacts
anticipated to occur as a result of study area growth increases.
Mitigation Measures
Table 5. Air Quality Mitigation Measures
Planned Action Study Area
Construction Emission Control
The City shall require all construction contractors
to implement air quality control plans for
construction activities in the study area. The air
quality control plans shall include BMPs to
control fugitive dust and odors emitted by diesel
construction equipment.
The following BMPs shall be used to control
fugitive dust.
• Use water sprays or other non-toxic dust
control methods on unpaved roadways.
• Minimize vehicle speed while traveling on
unpaved surfaces.
« Prevent trackout of mud onto public streets.
• Cover soil piles when practical.
• Minimize work during periods of high winds
when practical.
Potential Sunset Terrace Redevelopment Subarea
In addition to the mitigation measures for air
quality described under the Planned Action Study
Area, the following mitigation measures apply:
• Should the phases ofthe Potential Sunset
Terrace Redevelopment Subarea occur
concurrently rather than in a phased and
sequential manner, the City and RHA will
consider adding the Northeast Diesel
Collaborative Diesel Emission Controls in
Construction Projects - Model Contract
Specifications or an equivalent approach2 as
additional mitigation measures.
• The City and RHA and other public or private
applicants within the subarea should explore
measures to improve indoor air quality beyond
what is normally achieved by simply complying
with building codes. For example, grant
programs such as the Breath Easy Homes
program could provide funding to foster
construction methods that reduce dust, mold,
2 Northeast Diesel Collaborative. December 2010. Diesel Emission Controls in Construction Projects, Model
Contract Specification. Available: <http://www.northeastdiesel.org/pdf/NEDC-Construction-Contract-Spec.pdf.>
Accessed: March 14, 2011.
Planned Action Ordinance 11 Attachment B: Mitigation Document
ORDINANCE NO. 5610
Planned Action Study Area
The following mitigation measures shall be used
to minimize air quality and odor issues caused by
tailpipe emissions.
» Maintain the engines of construction
equipment according to manufacturers'
specifications.
• Minimize idling of equipment while the
equipment is not in use.
Where feasible, Applicants shall schedule haul
traffic during off-peak times (e.g., between 9:00
a.m. and 4:00 p.m.) to have the least effect on
traffic and to minimize indirect increases in traffic
related emissions. This shall be determined as
part of traffic control plans required in Section 14
of this mitigation document.
Burning of slash or demolition debris shall not be
permitted without express approval from Puget
Sound Clean Air Agency (PSCAA). No slash
burning is anticipated for any construction
projects in the Planned Action Study Area.
Greenhouse Gas Reduction Measures
Please see text and Table 6 below.
Potential Sunset Terrace Redevelopment Subarea
and air toxics concentrations in the homes, such
as the following:
o use of low-VOC [volatile organic compounds]
building materials and coatings,
o enhanced building ventilation and room air
filtration, and
o installation of dust-free floor materials and
low-pile carpeting to reduce dust buildup.
• Planned Action applicants for residential
developments shall provide information
regarding the feasibility and applicability of
indoor air quality measures. The City may
condition Planned Action applications to
incorporate feasible indoor air quality
measures.
Greenhouse Gas Reduction Measures
The City shall require development applicants to consider the reduction measures shown in Table 6
for their projects, and as part of their application explain what reduction measures are included and
why other measures found in the table are not included or are not applicable. The City may
condition Planned Action applications to incorporate feasible GHG reduction measures.
Table 6. Potential Greenhouse Gas Reduction Measures
Reduction Measures Comments
Site Design
Plant trees and vegetation near structures to shade Reduces on-site fuel combustion emissions and
buildings. purchased electricity, and enhances carbon
sinks.
Minimize building footprint Reduces on-site fuel combustion emissions and
purchased electricity consumption, materials
used, maintenance, land disturbance, and direct
construction emissions.
Design water efficient landscaping. Minimizes water consumption, purchased
energy, and upstream emissions from water
management
Minimize energy use through building orientation. Reduces on-site fuel combustion emissions and
purchased electricity consumption.
Building Design and Operations
Construct buildings according to City of Seattle The City of Seattle code is more stringent than
energy code. the current City of Renton building code.
Planned Action Ordinance Attachment B: Mitigation Document
ORDINANCE NO. 5610
Reduction Measures
Apply Leadership in Energy and Environmental
Design (LEED) standards (or equivalent] for design
and operations.
Purchase Energy Star equipment and appliances for
public agency use.
Incorporate on-site renewable energy production,
including installation of photovoltaic cells or other
solar options.
Design street lights to use energy-efficient bulbs
and fixtures.
Construct "green roofs" and use high-albedo
roofing materials.
Install high-efficiency heating, ventilation, and air-
conditioning (HVAC) systems.
Eliminate or reduce use of refrigerants in HVAC
systems.
Maximize interior day lighting through floor plates,
increased building perimeter and use of skylights,
celestories, and light wells.
Incorporate energy efficiency technology such as
super insulation motion sensors for lighting and
climate-control-efficient, directed exterior lighting.
Use water-conserving fixtures that surpass building
code requirements.
Reuse gray water and/or collect and reuse
rainwater.
Use recycled building materials and products.
Use building materials that are extracted and/or
manufactured within the region.
Use rapidly renewable building materials.
Conduct third-party building commissioning to
ensure energy performance.
Track energy performance of building and develop
strategy to maintain efficiency.
Transportation
Size parking capacity to not exceed local parking
requirements and, where possible, seek reductions
in parking supply through special permits or
waivers.
Develop and implement a marketing/information
program that includes posting and distribution of
ridesharing/transit information.
Comments
Reduces on-site fuel combustion emissions and
off-site/indirect purchased electricity, water
use, waste disposal.
Reduces on-site fuel combustion emissions and
purchased electricity consumption.
Reduces on-site fuel combustion emissions and
purchased electricity consumption.
Reduces purchased electricity.
Reduces on-site fuel combustion emissions and
purchased electricity consumption.
Minimizes fuel combustion and purchased
electricity consumption.
Reduces fugitive emissions. Compare
refrigerant usage before/after to determine
GHG reduction.
Increases natural/day lighting initiatives and
reduces purchased electrical energy
consumption.
Reduces fuel combustion and purchased
electricity consumption.
Reduces water consumption.
Reduces water consumption with its indirect
upstream electricity requirements.
Reduces extraction of purchased materials,
possibly reduces transportation of materials,
encourages recycling and reduction of solid
waste disposal.
Reduces transportation of purchased materials.
Reduces emissions from extraction of
purchased materials.
Reduces fuel combustion and purchased
electricity consumption.
Reduces fuel combustion and purchased
electricity consumption.
Reduced parking discourages auto-dependent
travel, encouraging alternative modes such as
transit, walking, and biking. Reduces direct and
indirect VMT.
Reduces direct and indirect VMT.
Planned Action Ordinance 13 Attachment B: Mitigation Document
ORDINANCE NO. 5610
Reduction Measures Comments
Subsidize transit passes. Reduce employee trips
during peak periods through alternative work
schedules, telecommuting, and/or flex time.
Provide a guaranteed-ride-home program.
Provide bicycle storage and showers/changing
rooms.
Use traffic signalization and coordination to
improve traffic flow and support pedestrian and
bicycle safety.
Apply advanced technology systems and
management strategies to improve operational
efficiency of local streets.
Develop shuttle systems around business district
parking garages to reduce congestion and create
shorter commutes.
Reduces employee VMT.
Reduces employee VMT.
Reduces transportation emissions and VMT.
Reduces emissions from transportation by
minimizing idling and maximizing
transportation routes/systems for fuel
efficiency.
Reduces idling fuel emissions and direct and
indirect VMT.
Source: Washington State Department of Ecology 2008b
VMT = vehicle miles travelled.
Nexus
City of Renton Comprehensive Plan
RMC 4-4-030 Development Guidelines and Regulations - General
RMC 4-4-060 Grading, Excavation and Mining Regulations
3. Water Resources
Significant Impacts
Table 7. Water Resources Significant Impacts
Type of Impact Planned Action Study Area
Potential Sunset Terrace
Redevelopment Subarea
Construction Construction impacts on water
resources would be addressed
through compliance with Core
Requirement #5 for Erosion
and Sediment Control in the
Renton Stormwater Manual and
compliance with Ecology's
NPDES Construction
Stormwater General Permit, if
the project results in 1 acre or
more of land-disturbing
activity. Also see Section 1,
Earth, above.
Same as Planned Action Study Area
Planned Action Ordinance 14
Attachment B: Mitigation Document
ORDINANCE NO. 5610
Type of Impact Planned Action Study Area
Potential Sunset Terrace
Redevelopment Subarea
Operations
Water Quality and Land
Cover
Indirect and Cumulative
Implementation ofthe green
connections and the NE Sunset
Boulevard reconstruction
project is estimated to result in
a net reduction of
approximately 14.7-15.7 acres
of untreated pollution-
generating impervious area and
approximately 3.1-6.6 acres of
effective impervious area.
Exclusive of the Sunset Terrace
Redevelopment Subarea the net
change in pollutant generating
surfaces is approximately 40-42
acres reduction. Exclusive ofthe
Sunset Terrace Redevelopment
Subarea, the net change in
effective impervious area would
be an increase of approximately
1.3 acres (0.8%) to 4.24 (2.6%)
from existing conditions.
Considering the reduction in
the Potential Sunset Terrace
Redevelopment Subarea as wll
as the overall Planned Action
Study Area, the net change in
effective impervious area would
be smaller at 0.75-3.17.
The operations analysis above
presents cumulative impacts in
terms of total impervious
surfaces and potential water
quantity and quality impacts, as
well as indirect impacts on
receiving water bodies outside
of the study area. The Planned
Action Alternatives would
implement a drainage master
plan and mitigation would be
provided in advance through
the self-mitigating public
stormwater infrastructure
features including a
combination of green
connections, regional
stormwater flow control, and
possible public-private
partnership opportunities for
retrofits.
All untreated pollution-generating
impervious surfaces within the
subarea would be eliminated,
resulting in a reduction of 1.83 acres
of untreated pollution-generating
surface from the Johns Creek Basin.
The estimated change in effective
impervious area would result in a
decrease of approximately 0.51 acre
(ll%o) to 1.07 acres (23%) compared
to existing conditions.
Same as the Planned Action Study
area. In particular, the City proposes
to construct a regional stormwater
facility that would be designed to
maintain active and open recreation
space allowing water to be treated
within a series of distributed of small
integrated rain gardens along the
edge ofthe proposed Sunset Terrace
Park and connecting the subsurface to
an underground infiltration bed
beneath open space. This will
mitigate impacts in the subarea as
well as portions ofthe larger Planned
Action Study Area.
Planned Action Ordinance 15 Attachment B: Mitigation Document
ORDINANCE NO. 5610
Unavoidable Adverse Impacts
None ofthe alternatives would have significant unavoidable adverse impacts on water resources,
because the redevelopment would likely result in an improvement of runoff and recharge water
quality. In addition, the net change in effective impervious area can be adequately mitigated through
the self-mitigating features of the Planned Action alternatives and through implementation ofthe
stormwater code, as described below.
Mitigation Measures
All of the alternatives would involve redevelopment and reduction of existing pollution-generating
impervious surfaces in the Planned Action Study Area. In addition, per the requirements of the
stormwater code, the redeveloped properties would be required to provide water quality treatment
for all remaining pollution-generating impervious surfaces. The net reduction in untreated
pollution-generating impervious surfaces throughout the study area is, therefore, considered to
result in a net benefit to surface water quality. Each ofthe alternatives would result in a slight
increase in the effective impervious area of the Planned Action Study Area.
Self mitigating features of the Planned Action Alternatives are listed below:
» Under Alternative 3, mitigation would be provided in advance or incrementally through the self-
mitigating public stormwater infrastructure features including a combination of green
connections, regional stormwater flow control, and possible public-private partnership
opportunities for retrofits. Conceptual design and planning of the public stormwater
infrastructure would be developed under a drainage master plan for the Study Area. It could be
developed in advance of (likely through grants or city funds] or incrementally as development
occurs depending on opportunity costs of constructing the improvements. The extent and form
of the public infrastructure projects would be refined through the drainage master plan
development and further design. The goal under Alternative 3 would be to provide sufficient
advance public infrastructure improvements to balance the anticipated increase in effective
impervious area. This strategy would only require that future developments implement flow-
control BMPs, but could eliminate on-site flow control through a development fee or similar
funding structure to compensate for the off-site mitigation provided by the public infrastructure
investment.
e The Preferred Alternative mitigation would be similar to Alternative 3. Harrington Avenue NE,
including portions of NE 16th and NE 9th streets, has been identified as a high priority Green
Connection project. This corridor would be enhanced by narrowing through-traffic lanes to calm
traffic, create wide planter areas to accommodate large trees and rain gardens to mitigate
stormwater runoff, and create wider sidewalks. This project would be implemented as a public
infrastructure retrofit project pending available funds. The remaining green connections
projects would likely be implemented as revised roadway standards to require incremental
redevelopment ofthe frontage as redevelopment occurs (constructed either by future
developers or the City, depending on availability of funds]. In addition to the Green Connections
projects, the City will implement regional detention/retention improvements to provide
advance mitigation for future increases in impervious area that could result from
redevelopment. Locations of the regional facilities would include the western margin of the
newly created park at Sunset Terrace and/or the northern corner of Highlands Park (beyond the
outfield ofthe existing baseball/softball field], A drainage master plan will be developed for the
Preferred Alternative.
Planned Action Ordinance 16
Attachment B: Mitigation Document
ORDINANCE NO. 5610
Planned Actions shall implement the City's adopted Sunset Area Surface Water Master Plan, and
associated street frontage improvements, and be consistent with the City stormwater regulations in
effect at the time of application. Planned Action applicants shall also demonstrate compliance with
RMC 4-1-180 Charges for Equitable Share of Public Works Facilities.
Nexus
City of Renton Comprehensive Plan
RMC 4-3-050 Critical Areas Regulations
RMC 4-4-030 Development Guidelines and Regulations - General
RMC 4-6-030 Drainage (Surface Water) Standards
RMC 4-6-060 Street Standards
4. Plants and Animals
Significant Impacts
Table 8. Plants and Animals Significant Impacts
Potential Sunset Terrace
Type of Impact Planned Action Study Area Redevelopment Subarea
Construction Individual redevelopment Same as Planned Action Study Area
projects would result in short-
term loss of vegetation cover,
along with noise and activity
levels that would result in little
or no use ofthe construction
areas by wildlife during the
period of construction.
Redevelopment actions would
be required to comply, during
construction, with City
regulations requiring temporary
erosion and sedimentation
controls to prevent water
quality impacts from work site
stormwater runoff.
Operations Redevelopment activities that Same as Planned Action Study Area
would be facilitated under the
planned action ordinance would
have a limited effect on plant or
wildlife habitat in the Planned
Action Study Area. New
development being designed as
Low Impact Development (LID)
is likely to result in a
measurable decline in total
vegetated area, accompanied by
a measurable improvement in
Planned Action Ordinance 17 Attachment B: Mitigation Document
ORDINANCE NO. 5610
Potential Sunset Terrace
Type of Impact Planned Action Study Area Redevelopment Subarea
plant diversity and quality of
the remaining habitat.
Green connections and urban
forestry plans offset to some
degree by greater
redevelopment, the net result is
likely to be a reduction in
habitat connectivity and a
decline in total vegetated area,
albeit with some improvement
in plant diversity and quality of
the remaining habitat.
Largely due to the absence of
impacts on special-status
species, effects on wildlife
would be less than significant.
Indirect Planned Action Alternatives Same as Planned Action Study Area
would result in an indirect
impact on plants and wildlife by
contributing to a substantial
increase in the human
population within the area. This
can be expected to result in
effects such as increased
wildlife mortality due to road
kill and predation by pets, and
reduced wildlife diversity due to
increases in opportunistic
species such as starlings, crows,
and rats. These indirect impacts
can be expected to result in
reduced numbers, vigor, and
diversity of plant and wildlife
species.
The stormwater commitments
incorporated in Planned Action
Alternatives would be sufficient
to avoid substantial impacts on
aquatic habitats and fish.
Cumulative No impact No impact
Unavoidable Adverse Impacts
No significant unavoidable adverse impacts would occur for plants and animals under any
alternative.
Mitigation Measures
With implementation of proposed stormwater features or standards, no mitigation is required.
Planned Action Ordinance 18
Attachment B: Mitigation Document
ORDINANCE NO. 5610
Nexus
City of Renton Comprehensive Plan
RMC 4-6-030 Drainage (Surface Water) Standards
RMC 4-3-050 Critical Areas Regulations
RMC 4-4-030 Development Guidelines and Regulations - General
RMC 4-4-130 Tree Retention and Land Clearing Regulations
5. Energy
Significant Impacts
Table 9. Energy Significant Impacts
Type of Impact Planned Action Study Area
Potential Sunset Terrace
Redevelopment Subarea
Construction
Operations
Energy Usage: Study Area
and Subarea
Indirect and Cumulative
Energy Usage: Subarea,
Study Area, and Region
During construction, energy
would be consumed by
demolition and reconstruction
activities. These activities would
include the manufacture of
construction materials, transport
of construction materials to and
from the construction site, and
operation of machinery during
demolition and construction.
The annual energy usage is
estimated at 255,845 to 275,529
million British thermal units
(Btu).
With high levels of transit-
oriented and high-density
development the Planned Action
Alternatives would provide the
greatest estimated regional
energy usage reduction for the
study area compared to the No
Action Alternative: 26,383 to
29,194 million Btu.
Same as Planned Action Study Area
The annual energy usage is
estimated at 21,338 to 43,654
million British thermal units (Btu).
With high levels of transit-oriented
and high-density development the
Planned Action Alternatives would
provide the greatest estimated
regional energy usage reduction for
the subarea compared to the No
Action Alternative: 1,145 to 3,624
million Btu.
Unavoidable Adverse Impacts
Additional energy would be consumed and would contribute to increases in demand associated with
the growth and development of the region. As described in the Utilities Element of the City
Comprehensive Plan, it is anticipated that existing and planned infrastructure of affected energy
utilities could accommodate growth. Energy conservation features would be incorporated into
Planned Action Ordinance 19
Attachment B: Mitigation Document
ORDINANCE NO. 5610
building design as required by the current City building codes. For the Potential Sunset Terrace
Redevelopment Subarea, HUD encourages public housing authorities such as RHA to use Energy
Star, renewable energy, and green construction practices in public housing. As such, no significant
unavoidable adverse impacts on energy use are anticipated.
Planned Action Ordinance 20 Attachment B: Mitigation Document
ORDINANCE NO. 5610
Mitigation Measures
Table 10. Energy Mitigation Measures
Planned Action Study Area Potential Sunset Terrace Redevelopment Subarea
Although the growth and development would In addition to the mitigation measures described for
result in increased energy demand in the the Planned Action Study Area, according to the King
Planned Action Study Area under all ofthe County proposed GHG reduction regulation, energy
alternatives, expanding the beneficial transit- reductions can be provided with the implementation
oriented development and high-density ofthe following basic requirements ofthe American
housing development within the study area Society of Heating, Refrigerating and Air-Conditioning
would reduce regional energy usage. Engineers Advanced Buildings Core Performance Guide
Therefore, all alternatives would provide a for residential and non-residential building in the
net benefit rather than adverse impact with subarea:
regards to energy usage. However, to further
reduce energy consumption, the City shall
encourage future developers to implement
additional trip-reduction measures and
energy conservation measures. For example,
energy and GHG reductions can be achieved
through implementation ofthe following
energy conservation techniques or equivalent
approaches.
• An energy reduction of 12% can be
achieved by implementing sufficient
strategies established by the Northwest
Energy Star Homes program for
multifamily residential buildings. The
Northwest ENERGY STAR Homes
program (U.S. Environmental Protection
Agency 2010} is designed to help builders
construct energy-efficient homes in
Washington, Oregon, Idaho, and Montana
to meet energy-efficiency guidelines set
forth by the EPA.
• An energy reduction of 10% would
comply with Seattle Energy Code for non-
residential buildings.
See also Air Quality mitigation measures. The
City shall require development applicants to
consider trip-reduction measures and energy
conservation, and as part of their application
explain what reduction measures are included
and which ones are not included (based on
that are part of Table 6 or Table 10). The City
may condition Planned Action applications to
incorporate feasible trip reduction and energy
conservation measures.
Nexus
City of Renton Comprehensive Plan
30% energy reduction for residential dwelling
that are 50% of average size; and 15% energy
reduction for residential dwelling that are 75% of
average size; and
12% energy reduction for office, school, retail,
and public assembly buildings that are smaller
than 100,000 square feet in floor area.
Planned Action Ordinance 21 Attachment B: Mitigation Document
ORDINANCE NO. 5610
RMC 4-5-051 Washmgton State Energy Code Adopted
6. Noise
Significant Impacts
Table 11. Noise Significant Impacts
Type of Impact Planned Action Study Area
Potential Sunset Terrace
Redevelopment Subarea
Construction
Operations
Noise from New
Commercial Operations
Indirect and Cumulative
Noise from Increased
Traffic: Proposal with
Future Traffic Levels
Development in the study area
would require demolition and
construction activity, which
would temporarily increase
noise levels at residences close
to the development site. This
type of activity could cause
annoyance and speech
interference at outdoor
locations adjacent to the
construction sites, and could
cause discernible noise.
Unless properly controlled,
mechanical equipment (e.g.,
rooftop air conditioning units)
and trucks at loading docks of
office and retail buildings in the
study area could cause ambient
noise levels at nearby
residential housing units to
exceed the City noise ordinance
limits.
For most residents adjacent to
roadways in the study area,
increased traffic would result in
the greatest increase in ambient
noise levels, caused by moving
traffic and vehicles idling at
intersections. Development
would result in noise increase
from vehicles traveling on NE
Sunset Boulevard and local
streets.
Same as Planned Action Study
Area
Same as Planned Action Study
Area
Development would result in
noise increase from vehicles
traveling on NE Sunset
Boulevard and local streets The
estimated day-night noise levels
from NE Sunset Boulevard at
the adjacent buildings indicates
they would be exposed to
"normally unacceptable" noise
levels exceeding U.S.
Department of Housing and
Urban Development's (HUD's)
outdoor day-night noise
criterion of 65 dBA. The noise
levels at these first row
residential dwellings currently
exceed the HUD noise criterion
and would continue to exceed
Planned Action Ordinance 22
Attachment B: Mitigation Document
ORDINANCE NO. 5610
Potential Sunset Terrace
Type of Impact Planned Action Study Area Redevelopment Subarea
the criterion under Planned
Action Alternatives.
Unavoidable Adverse Impacts
No significant unavoidable adverse construction or operational traffic noise impacts are anticipated
in the Planned Action Study Area with the implementation of mitigation measures noted below. No
significant unavoidable adverse traffic noise impacts are anticipated at residences along NE Sunset
Boulevard in the Planned Action Study Area per WSDOT criteria, because the noise mcrease caused
by NE Sunset Boulevard traffic is less than the WSDOT "substantial increase" impact threshold.
Portions of the Potential Sunset Terrace Redevelopment Subarea, even under existing conditions
and the No Action Alternative, would be deemed normally unacceptable under the HUD noise
criteria without implementation of noise attenuation mitigation, due to traffic noise from the
adjacent street (NE Sunset Boulevard). No significant unavoidable adverse noise impacts are
anticipated in this subarea, if the noise control measures noted below are implemented to reduce
anticipated future traffic noise to levels suitable for residential uses under the HUD criteria.
Mitigation Measures
Table 12. Noise Mitigation Measures
Planned Action Study Area Potential Sunset Terrace Redevelopment Subarea
Construction Noise
To reduce construction noise at nearby
receivers, the following mitigation measures
shall be incorporated by Planned Action
applicants into construction plans and
contractor specifications.
• Locate stationary equipment away from
receiving properties.
• Erect portable noise barriers around loud
stationary equipment located near sensitive
receivers.
• Limit construction activities to between 7:00
a.m. and 10:00 p.m. to avoid sensitive
nighttime hours.
• Turn off idling construction equipment.
• Require contractors to rigorously maintain
all equipment.
• Train construction crews to avoid
unnecessarily loud actions (e.g., dropping
bundles of rebar onto the ground or
dragging steel plates across pavement) near
noise-sensitive areas.
New Commercial Operation Noise
The City shall require all prospective future
Mitigation measures described in the Planned
Action Study Area would also apply to this
subarea.
Site design approaches shall be incorporated to
reduce potential noise impacts including the
following.
• Concentrating park and open space uses are
away from NE Sunset Boulevard.
• Where park and open space uses must be
located near NE Sunset Boulevard, avoiding
activities that require easily understood
conversation (e.g., instructional classes), or
other uses where quiet conditions are
required for the primary function ofthe
activity.
• Allowing for balconies on exterior facing units
only if they do not open to a bedroom.
According to HUD noise guidebook, noise
attenuation from various building materials are
calculated using sound transmission class (STC)
rating. Although the standard construction
approaches can normally achieve the STC rating of
more than 24 dBA as demonstrated in Final EIS
Appendix E, the City shall require a STC rating of
30 dBA reduction for these first row residential
Planned Action Ordinance 23 Attachment B: Mitigation Document
ORDINANCE NO. 5610
Planned Action Study Area Potential Sunset Terrace Redevelopment Subarea
developers to use low-noise mechanical dwellings because the HUD noise guidebook shows
equipment adequate to ensure compliance with that the sound reduction achieved by different
the City's daytime and nighttime noise ordinance techniques may be a little optimistic3..
limits where commercial uses are abutting
residential uses and where there is a potential to
exceed noise ordinance limits. Depending on the
nature ofthe proposed development, the City
shall require the developer to conduct a noise
impact study to forecast future noise levels and
to specify appropriate noise control measures.
Compliance with the noise ordinance would
ensure this potential impact would not be
significant
Traffic Noise Mitigation
Although traffic noise is exempt from City noise
ordinance, based on site-specific considerations,
the City may at its discretion require the new
development to install double-pane glass
windows or other building insulation measures
using its authority under the Washington State
Energy Code (RMC 4-5-040).
Nexus
City of Renton Comprehensive Plan
RMC 4-4-030 Development Guidelines and Regulations - General
RMC 4-4-060 Grading, Excavation and Mining Regulations
RMC Title 8 Chapter 7 Noise Level Regulations
7. Environmental Health
Significant Impacts
Table 13. Environmental Health Impacts
Type of Impact Planned Action Study Area
Potential Sunset Terrace
Redevelopment Subarea
Construction Potential construction impacts
include releasing existing
contaminants to the environment
by ground-disturbing or
dewatering activities,
encountering underground
storage tanks (USTs) or leaking
USTs, generating hazardous
building materials that require
Existing subsurface
contaminations have not been
identified on the redevelopable
properties and, therefore, are not
expected to be encountered
during construction. Hazardous
building materials such as lead-
based paint and asbestos-
containing materials (ACMs)
3 HUD noise guidebook, Chapter 4, page 33"... use the STC ratings with a bit of caution and remain aware ofthe
possible 2-3 dB overstating that you may get with the STC rating system."
Planned Action Ordinance 24
Attachment B: Mitigation Document
ORDINANCE NO. 5610
Potential Sunset Terrace
Type of Impact Planned Action Study Area Redevelopment Subarea
special disposal, and accidentally could be generated from
releasing hazardous substances. demolition ofthe existing Sunset
Terrace buildings. If there are
lead-based paints or ACMs at the
complex, appropriate permits and
precautions would be required.
Accidental release of hazardous
substances during construction
could still occur as in all
construction projects.
Operations If development occurs on
contaminated sites, where
appropriate clean-up measures
were not completed or residual
contaminations were present,
then there is a potential risk to
public health for people using the
site.
No impact
Indirect No impact No impact
Cumulative No impact No impact
Unavoidable Adverse Impacts
No significant unavoidable adverse impacts are identified at the programmatic level throughout the
Planned Study Area or for the Sunset Terrace Redevelopment Subarea for any ofthe studied
alternatives. Contaminated sites would be avoided during project design when possible;
implementing the mitigation approaches described below would minimize or eliminate adverse
effects on human health and the environment.
Mitigation Measures
Table 14. Environmental Health Mitigation Measures
Planned Action Study Area Potential Sunset Terrace Redevelopment Subarea
• Since encountering unreported spills or
unreported underground fuel tanks is a risk
when performing construction, contractors
shall be required to provide hazardous
materials awareness training to all grading
and excavation crews on how to identify
any suspected contaminated soil or
groundwater, and how to alert supervisors
in the event of suspected contaminated
material. Signs of potential contaminated
soil include stained soil, odors, oily sheen,
or the presence of debris.
• Contractors shall be required to implement
a contingency plan to identify, segregate,
and dispose of hazardous waste in full
The construction and operation mitigation
measures identified for the Planned Action Study
Area are applicable to the subarea.
Planned Action Ordinance 25
Attachment B: Mitigation Document
ORDINANCE NO. 5610
Planned Action Study Area Potential Sunset Terrace Redevelopment Subarea
accordance with the Model Toxics Control
Act (MTCAXWAC 173-340) and the
Dangerous Waste (WAC 173-303)
regulations.
» Contractors shall be required to develop
and implement the Stormwater Pollution
Prevention Plan, BMPs, and other permit
conditions to minimize the potential for a
release of hazardous materials to soil,
groundwater, or surface water during
construction.
• Contractors shall be required to follow
careful construction practices to protect
against hazardous materials spills from
routine equipment operation during
construction; prepare and maintain a
current spill prevention, control, and
countermeasure plan, and have an
individual on site designated as an
emergency coordinator; and understand
and use proper hazardous materials
storage and handling procedures and
emergency procedures, including proper
spill notification and response
requirements.
s All asbestos-containing materials (ACM)
and lead-based paint will be identified in
structures prior to demolition activities in
accordance with 24 CFR Part 35. If ACM or
lead-based paint is identified, appropriately
trained and licensed personnel will contain,
remove, and properly dispose ofthe ACM
and/or lead-based paint material according
to federal and state regulations prior to
demolition of the affected area.
• If warranted, contractors shall conduct
additional studies to locate undocumented
underground storage tank (USTs) and fuel
lines before construction of specific
development projects (areas of concern
include current and former commercial and
residential structures) and will
permanently decommission and properly
remove USTs from project sites before
commencing general construction
activities.
• Prior to acquisition of known or potentially
contaminated property, the City shall
require appropriate due diligence be
performed to identify the presence and
extent of soil or groundwater
Planned Action Ordinance 26
Attachment B: Mitigation Document
ORDINANCE NO. 5610
Planned Action Study Area Potential Sunset Terrace Redevelopment Subarea
contamination. This can help to prevent or
manage liabilities for any long-term clean-
up activities that might be ongoing during
project operations. If contamination is
discovered, the project proponent will
comply with all state and federal
regulations for contaminated sites.
Nexus
City of Renton Comprehensive Plan
RMC 4-4-030 Development Guidelines and Regulations - General
RMC Title 4 Chapter 5 Building and Fire Prevention Standards
8. Land Use
Significant Impacts
Table 15. Land Use Impacts
Type of Impact Planned Action Study Area
Potential Sunset Terrace
Redevelopment Subarea
Construction
Operations
Land Use Patterns
Plans and Policies
The incremental nature of
development over the planning
period would minimize the
number of nearby residents
exposed to temporary
construction impacts including
dust emissions, noise,
construction traffic, and sporadic
interference with access to
adjacent residences and
businesses.
Planned Action Alternatives
would provide more than 2,300 to
2,500 dwelling units and 1.2 to
1.3 million square feet of
commercial space compared to
existing conditions.
Redevelopment would provide
more commercial development
than residential development.
This alternative would also
provide more than two times as
many residential dwellings as
currently exist in the study area.
Planned Action Alternatives
provide the greatest degree of
Same as Planned Action Study
Area
Planned Action Alternatives
would provide about 266-479
more dwelling units than existing
conditions in a mixed-use
development that integrates
commercial and civic spaces.
Planned Action Alternatives
provide the greatest degree of
Planned Action Ordinance 27
Attachment B: Mitigation Document
ORDINANCE NO. 5610
Type of Impact Planned Action Study Area
Potential Sunset Terrace
Redevelopment Subarea
Indirect and Cumulative
consistency among the
alternatives with the City
Comprehensive Plan goals,
objectives, and policies by
implementing the development
types envisioned in the City's land
use and zoning designations
within the study area. Anticipated
growth would help the City meet
its 2031 housing and employment
targets.
Public investments would need to
be accounted for in amendments
to the City's Transportation and
Capital Facilities elements.
No indirect or cumulative land
use impacts are anticipated
outside the study area. The City
applies its policies and
development regulations to create
a planned land use pattern.
Density is most intense at the
center of the study area and least
along its boundaries with single-
family residential land use
patterns; it is unlikely to alter
patterns or plans along the edges
of the study area. The City will, as
part of its regular comprehensive
plan review and amendment
updates, control the monitoring,
evaluation, and amendment
process.
consistency with the City's land
use element goals and policies of
all alternatives by promoting the
redevelopment ofthe Sunset
Terrace public housing
community. It also does more
than other alternatives to develop
the Center Village. Development
in the subarea under this
alternative has a similar
consistency as the study area for
other City goals and policies,
providing a greater degree of
consistency with those goals and
policies than other alternatives.
Redevelopment ofthe subarea
under this alternative would
serve as an incentive for other
redevelopment opportunities
near the study area.
Unavoidable Adverse Impacts
Although intensification of land uses in the Planned Action Study Area, including the Potential
Sunset Terrace Redevelopment Subarea, would occur and density would increase, this change would
be consistent with applicable plans, zoning, and land use character. Plan consistency can be
addressed by Comprehensive Plan amendments using the City's legislative process. Therefore, there
would be no significant adverse impacts.
Mitigation Measures
Table 16. Land Use Mitigation Measures
Planned Action Study Area Potential Sunset Terrace Redevelopment Subarea
Under all alternatives, the City shall require
planned action applicants to implement
appropriate construction mitigation measures,
including but not limited to dust control and
Construction mitigation would be the same as
described under the Planned Action Study Area.
The City and RHA should coordinate on future
Planned Action Ordinance 28
Attachment B: Mitigation Document
ORDINANCE NO. 5610
Planned Action Study Area Potential Sunset Terrace Redevelopment Subarea
construction traffic management. Sunset Terrace redevelopment and Planned
The City should make efforts to minimize Action Study Area streetscape improvements to
property acquisition that affects buildings as part ensure that property acquisition that affects
of its refinement of study area streetscape designs buildings is minimized,
while balancing Complete Streets principles. The City shall require construction plans to:
As part ofthe Planned Action Ordinance adoption # Locate ^ majori1y of ^ mQSt intensive
process, the City should amend its Comprehensive non-residential development along or near
Plan's Transportation and Capital Facdities NE Sunset Boulevard, where possible,
elements to ensure that planned public
investments and their funding sources are • Implement proposed open space and
accounted for and programmed. landscape features to offset the proposed
intensification of land uses on the site.
• Provide new opportunities for public open
space area.
• As part of site design, emphasize transitions
in density, with less intense densities where
abutting lower-intensity zones.
Nexus
City of Renton Comprehensive Plan
RMC Title 4 Chapter 2 Zoning Districts - Uses and Standards
9. Socioeconomics
Significant Impacts
Table 17. Socioeconomics Impacts
Type of Impact Planned Action Study Area
Potential Sunset Terrace
Redevelopment Subarea
Construction
Operations
Construction activities could
temporarily increase congestion
and reduce parking, local access
for businesses and residents, and
access near the construction
activities, which could negatively
affect businesses; however,
businesses located close to
construction activities could
experience an increase in revenue
from spending by construction
workers.
The higher number of dwelling
units and jobs would result in
The demolition ofthe Sunset
Terrace complex to allow for the
subarea redevelopment would
require the relocation ofthe
tenants.
Moreover, the relocation of the
tenants could affect some local
businesses during construction, if
the tenants are relocated outside
ofthe immediate area; however,
since the total number of
relocations represents a small
portion ofthe overall population
any impact would likely be small
in scale.
The Planned Action Alternatives
would increase dwelling units and
greater intensities in development jobs by 266-479 net dwelling
Planned Action Ordinance 29
Attachment B: Mitigation Document
ORDINANCE NO. 5610
Potential Sunset Terrace
Type of Impact Planned Action Study Area Redevelopment Subarea
and economic benefits. units and 79-117 jobs. The
Improvements in the streetscape subarea would be developed with
along NE Sunset Boulevard and new park, street, and civic
the other civic and infrastructure improvements that would
improvements would make the promote a healthy and walkable
study area more desirable to neighborhood.
investment, which could lead to
additional opportunities for
employment as more businesses
are attracted to the study area.
The facilities that would be added
under Alternative 3 include a
family village and a wider
reconstruction of NE Sunset
Boulevard. The family village
would include housing, education,
recreation, and supportive
services that would be designed
to promote a healthy and
walkable neighborhood.
Indirect Construction spending would Increased spending is anticipated
result in positive indirect effects with the mixture of affordable and
on the economic elements of market-rate units, which would
employment and income in the result in positive impacts on the
study area and the regional businesses in the area as well as
economy as businesses that local tax revenues.
support the construction effort
would likely see increased
spending.
The additional public and private
investment and associated
economic benefits would be
greater due to the increased
spending.
Cumulative Cumulative effects would be As the area changes and new
positive with the addition of new housing is provided, no existing
development that would continue public units would be lost and
to enhance the area and continue improvements in the
to improve the neighborhood neighborhood would likely
vitality. continue as new developments
are constructed.
Unavoidable Adverse Impacts
No long-term significant unavoidable adverse impacts are anticipated. Planned Action alternatives
would encourage new development in the both the Planned Action Study Area and the Potential
Sunset Terrace Redevelopment Subarea that would result in beneficial changes to the
socioeconomic conditions.
Under Planned Action Alternatives, relocation of the tenants of the Sunset Terrace complex would
result in short-term impacts; however, these impacts would be mitigated. The creation of new jobs
Planned Action Ordinance 30 Attachment B: Mitigation Document
ORDINANCE NO. 5610
and spending in the subarea during construction of new developments would result in short-term
benefits.
Mitigation Measures
Table 18. Socioeconomics Mitigation Measures
Planned Action Study Area Potential Sunset Terrace Redevelopment Subarea
Mitigation measures to minimize dust, noise,
aesthetics, and transportation impacts during
construction are identified in Sections 2, 6,12,
and 14, respectively, of this Mitigation Document.
These measures would address many of the
construction-related impacts that could
negatively affect the study area businesses.
In addition, with the reconstruction of NE Sunset
Boulevard, or with any new development, if
access to businesses is affected, the following
measures should be addressed by the City or
WSDOT:
• Provide detour, open for business, and other
signage, as appropriate.
• Provide business cleaning services on a case-
by-case basis, as needed.
• Establish promotions or marketing measures
to help affected businesses maintain their
customer base during construction.
• Maintain access, as much as possible, to each
business and, if access needs to be limited,
coordinate with the affected businesses.
Mitigation measures to address indirect impacts
on housing affordability are addressed in Section
10 of this Mitigation Document.
In addition to mitigation measures described for
the Planned Action Study Area, the following
mitigation measures apply:
« Public housing tenants shall be provided
relocation assistance under the Uniform
Relocation Act
• RHA should consider phased demolition and
reconstruction to minimize the need to relocate
all the residents at the same time, or the new
affordable housing development could be
constructed prior to demolition to provide
opportunities to relocate tenants within the
subarea.
Nexus
City of Renton Comprehensive Plan
10. Housing
Significant Impacts
Table 19. Housing Impacts
Potential Sunset Terrace
Type of Impact Planned Action Study Area Redevelopment Subarea
Construction Construction of commercial, Construction of residential and
residential, and civic uses in the civic uses would create temporary
study area would create noise, dust, and construction
temporary noise, dust, and traffic, which would affect
Planned Action Ordinance 31
Attachment B: Mitigation Document
ORDINANCE NO. 5610
Type of Impact Planned Action Study Area
Potential Sunset Terrace
Redevelopment Subarea
Operations
Indirect
Cumulative
construction traffic, which would
affect current residents.
The Planned Action Alternatives
assume 40% ofthe study area
acreage would infill or redevelop.
This would result in the greatest
number of dwellings replaced at
299.
The Planned Action Alternatives
would add up to approximately
2,339 to 2,507 new dwellings.
In the study area there is a
potential for additional market
rate dwellings as well as
affordable and public dwellings.
Most new units would be
multifamily.
Increased housing could increase
local resident spending at
businesses in the study area, and
could also create an increased
demand for parks and recreation,
public services, and utilities.
Growth in the study area would
be consistent with the City's
Comprehensive Plan and would
contribute to meeting growth
targets for the City's next
Comprehensive Plan Update for
the year 2031.
adjacent residents to the subject
properties.
In this subarea, 110 public
housing and duplex dwellings
would be eliminated. There would
be a 1:1 replacement of public
housing units on site and in the
Planned Action Study Area.
The number of units added would
be 266-479 above existing
dwellings, for a total of 376-589
units. About three quarters ofthe
units would be affordable or public,
and another approximate quarter
would be market-rate dwelling
units.
The potential for residents to help
support local businesses as well
as to create a demand for services
is similar to the Planned Action
Study Area.
The support ofthe new dwellings
to assist the City in meeting
growth targets is similar to the
Planned Action Study Area.
Unavoidable Adverse Impacts
Housing in the Planned Action Study Area would likely redevelop to some degree to take advantage
of adopted plans and zoning. However, the alternatives would allow for the construction of new
dwelling units to replace those that are eliminated. Lower-cost housing could be replaced with more
costly housing. Implementation of City regulatory incentives and use of federal, state, and local
housing funds and programs could reduce potential affordability impacts. Through its regular
Comprehensive Plan review cycles, the City could monitor housing trends in the neighborhood and
adapt measures to promote affordability.
During construction and in the short-term, residents would be subject to construction activities and
the tenants ofthe Sunset Terrace complex would be required to relocate during demolition and
construction. However, relocation assistance mitigation measures for RHA units would mitigate
impacts.
Planned Action Ordinance 32
Attachment B: Mitigation Document
ORDINANCE NO. 5610
Mitigation Measures
Table 20. Housing Mitigation Measures
Planned Action Study Area
Potential Sunset Terrace Redevelopment
Subarea
Renton Municipal Code (RMC) 4-4-030(C)
identifies construction hours intended to address
noise in sensitive time periods. See Section 6,
Noise, of this Mitigation Document regarding other
noise mitigation measures for construction
periods.
When federal funds are being used for a proposal,
displaced tenants shall be offered relocation
assistance in compliance with the Uniform
Relocation Assistance and Real Property
Acquisitions Policies Act of 1970, as amended.
The City and RHA should apply for federal, state,
and local funding programs described in Draft EIS
Section 3.10, Housing, to promote new housing
opportunities for low and very low-income
housing.
RHA should establish a local preference for rental
assistance. For example, RHA could establish a
priority list for Section 8 vouchers for displaced
low-income tenants in the Planned Action Study
Area (in addition to the relocation assistance to be
provided by RHA to the Sunset Terrace residents).
Unit replacement and relocation assistance for the
family village would be the same as described for
the Potential Sunset Terrace Redevelopment
Subarea.
Construction mitigation would be as described
for the Planned Action Study Area.
RHA has committed to replacement housing for
the Sunset Terrace public housing units at a 1:1
ratio, consistent with the existing proportion of
units by number of bedrooms. Such replacement
housing could occur on site and/or off site.
During the time replacement housing is under
construction, Section 8 vouchers, or equivalent
measures, shall be used to relocate tenants.
Nexus
City of Renton Comprehensive Plan
RMC Title 4 Chapter 2 Zoning Districts - Uses and Standards
RMC 4-4-030 Development Guidelines and Regulations - General
11. Environmental Justice
Significant Impacts
Table 21. Environmental Justice Impacts
Type of Impact Planned Action Study Area
Potential Sunset Terrace
Redevelopment Subarea
Construction Residents near construction
activities would likely be affected
by temporary noise, dust, and
visual impacts due to
The demolition ofthe Sunset
Terrace complex and construction
ofthe proposed conceptual plans
would require the relocation of
Planned Action Ordinance 33
Attachment B: Mitigation Document
ORDINANCE NO. 5610
Type of Impact Planned Action Study Area
Potential Sunset Terrace
Redevelopment Subarea
Operations
Indirect
Cumulative
construction; these impacts would
be short-term in nature. The
population ofthe study area is
predominately non-minority and
non-low-income and any negative
impacts would likely occur on
these populations to a greater
degree than the minority and low-
income populations.
Residential, commercial, and
recreational development and
civic and infrastructure
improvements under Planned
Action Alternatives would
improve the overall
neighborhood, making it a more
cohesive and desirable place to
live for all populations in the
community, including minority
and low-income populations.
The family village would be
beneficial for all populations in
the Planned Action Study Area,
but these benefits could accrue to
a greater degree for minority and
low-income populations due to
the close proximity, especially for
those without access to a vehicle.
The introduction of new retail and
commercial space within the
study area would increase
employment opportunities. These
opportunities would benefit all
study area populations, but could
benefit minority and low-income
populations to a greater degree.
The Planned Action Alternatives
would increase the variety of
residential unit types and
affordability levels would reduce
the concentration of low-income
households in the subarea, and
thereby reduce or eliminate some
ofthe social consequences of such
concentrations.
Cumulative impacts would
primarily be beneficial. As the
area continues to redevelop with
new investments, public and
private, it would become more
desirable for the residents and
the tenants ofthe Sunset Terrace
complex likely through Section 8
vouchers. Because the tenants are
low-income and predominately
minority, this would constitute a
greater impact on these
populations than other
populations.
Planned Action Alternatives
would have a number of beneficial
effects on minority and low-
income populations in the
subarea, including the
redevelopment ofthe existing
dwelling units, construction of
additional units, transportation
improvements, and the addition
of other community facilities (i.e.,
senior day health, library, parks).
These changes would result in
improvements to public health
and to the aesthetics of the area.
These would all improve
community cohesion for subarea
residents.
Housing types and affordability
would be more varied. New retail
and commercial space wand
provide new employment
opportunities could be seen as
more beneficial to subarea
residents who may be
unemployed or not have a their
own vehicle and would, therefore,
benefit more from the proximity.
Adverse impacts are not
anticipated. New dwelling units
would be affordable, public, and
market-rate units. The beneficial
cumulative impacts identified
under the Planned Action Study
Planned Action Ordinance 34
Attachment B: Mitigation Document
ORDINANCE NO. 5610
Potential Sunset Terrace
Type of Impact Planned Action Study Area Redevelopment Subarea
would continue to create new Area would be similar,
jobs. The new development and
addition of more market-rate
units could cause the study area
to become less affordable to
lower-income populations, which
could result in these populations
needing to relocate outside ofthe
study area.
Unavoidable Adverse Impacts
There are no long-term significant unavoidable adverse impacts related to environmental justice.
The Planned Action alternatives would result in primarily beneficial impacts associated with new
dwelling units, new civic facilities and parks, improvements in nonmotorized transportation, and
new employment opportunities in the surrounding area.
During construction and in the short-term residents would be subject to construction activities and
the tenants of the Sunset Terrace complex would be required to relocate during demolition and
construction. However, construction mitigation and relocation assistance mitigation measures (for
the RHA units) would minimize impacts.
Mitigation Measures
Table 22. Environmental Justice Mitigation Measures
Planned Action Study Area Potential Sunset Terrace Redevelopment Subarea
There are no specific mitigation measures related Mitigation measures during construction include
to environmental justice during construction or the need for replacement housing for the
operation. During construction, mitigation residents of Sunset Terrace. It is likely that the
measures related to noise, dust, traffic congestion, tenants would be relocated under a potential
and visual quality shall be applicable to all Section 8 voucher strategy during construction.
. populations. These measures are described in See Section 9, Socioeconomics, of this Mitigation
Sections 2, 6,12, and 14, respectively, of this Document.
Mitigation Document.
Nexus
City of Renton Comprehensive Plan
RMC 4-4-030 Development Guidelines and Regulations - General
12. Aesthetics
Significant Impacts
Table 23. Aesthetic Impacts
Potential Sunset Terrace
Type of Impact Planned Action Study Area Redevelopment Subarea
Planned Action Ordinance 25 Attachment B: Mitigation Document
ORDINANCE NO. 5610
Type of Impact Planned Action Study Area
Potential Sunset Terrace
Redevelopment Subarea
Construction
Operations
Visual Character
Height and Bulk
The demolition of existing
structures and construction of
new buildings would expose
nearby residents to visual
impacts, including dust, the
presence of construction
equipment, stockpiles of
construction materials, localized
increases in vehicular traffic, and
on-site construction activities. For
each alternative, these activities
would occur sporadically at
various locations throughout the
Planned Action Study Area, would
be localized to the construction
site, and would be temporary in
nature.
The extensive public investment
under the Planned Action
Alternatives would result in
widespread changes to the visual
character of the Planned Action
Study Area affecting about 40% of
parcel acres. Private development
would take full advantage ofthe
current development regulations,
resulting in a transition to a
mixed-use, pedestrian-oriented
neighborhood.
The application of adopted design
standards as new construction
gradually replaces older buildings
would result in an overall
improvement ofthe visual
environment in the Planned
Action Study Area.
The subarea would experience
moderate increases in height and
bulk over existing conditions.
Heights would range from two to
four stories, and buildings would
generally be located closer to the
street than under current
conditions. The tallest building
heights under the Preferred
Alternative would occur on
property zoned Center Village.
Same as Planned Action Study
Area
The visual character ofthe
Potential Sunset Terrace
Redevelopment Subarea would
change from its current state to a
pedestrian-oriented community
with a mix of residential, ground-
floor commercial, and community
uses linked by public spaces and
landscaped pedestrian pathways.
The Preferred Alternative concept
would focus less residential
development in the subarea than
Alternative 3, making room for a'
larger neighborhood park.
Building height and bulk within
the Potential Sunset Terrace
Redevelopment Subarea would
range from one to four stories.
The Preferred Alternative,
however, would provide much
more park space than Alternative
3, providing a sense of openness
to the Sunset Terrace site. In
addition, buildings on the site
would be arranged to place 2-
story townhomes adjacent to the
park and taller multifamily
residential buildings along NE
Planned Action Ordinance 36
Attachment B: Mitigation Document
ORDINANCE NO. 5610
Type of Impact Planned Action Study Area
Potential Sunset Terrace
Redevelopment Subarea
Shade and Shadow
Indirect/ Cumulative
Because heights in the Planned
Action Study Area would
generally increase, shading effects
would also become more
pronounced, though only to a
moderate degree. Increased
building heights within the
Planned Action Study Area could
result in increased shading of
pedestrian areas and public
spaces, particularly along
NE Sunset Boulevard, which is
likely to see some ofthe most
intense commercial and mixed-
use development.
While redevelopment of the
public facilities discussed under
the various alternatives would be
a coherent effort, private
development throughout the
study area would occur
piecemeal. Individual private
developments are likely to be of
higher density, greater height, and
a different architectural style than
existing development, and have
the potential to create temporary
aesthetic conflicts where they are
located adjacent to older
structures. Over time, as more
properties redevelop, the
temporary conflicts would be less
frequent and less noticeable.
Sunset Boulevard.
Taller buildings along NE Sunset
Boulevard would cast longer
shadows on the interior ofthe
subarea to the north, potentially
shading sidewalks along Sunset
Lane NE. Dependent on final
design, building may potentially
shade sidewalks along Sunset
Lane NE and Glenwood
Avenue NE at various times of the
day.
With the Preferred Alternative,
the increased size ofthe central
park, as well as the placement of
2-story townhomes adjacent to
the park, reduces the potential for
adverse shading effects compared
to Alternative 3.
Redevelopment of the Sunset
Terrace housing facility would be
a localized action, but additional
private development is
anticipated to occur in response
to this public investment, and
each private development project
would contribute to the overall
transformation of the area's
aesthetic character.
Unavoidable Adverse Impacts
With the application of adopted development regulations and recommended mitigation measures,
no significant unavoidable adverse aesthetic impacts are anticipated.
Mitigation Measures
Table 24. Aesthetic Mitigation Measures
Potential Sunset Terrace Redevelopment
Planned Action Study Area Subarea
In both the Planned Action Study Area and Potential See Planned Action Study Area.
Sunset Terrace Redevelopment Subarea, mitigation
Planned Action Ordinance 37 Attachment B: Mitigation Document
ORDINANCE NO. 5610
Potential Sunset Terrace Redevelopment
Planned Action Study Area Subarea
measures will be necessary to minimize impacts
associated with increased height, bulk, and shading.
Future development occurring under any ofthe
alternatives shall conform to the Renton Municipal
Code design standards, including but not limited to
the following:
• Urban design standards contained in RMC 4-3-
100,
• Residential Design and Open Space Standards
contained in RMC 4-2-115, and
• Lighting Standards contained in RMC 4-4-075.
As described in RMC 4-3-100B3, portions of the
Planned Action Study Area do not currently lie
within an established Urban Design District, most
notably those properties north of NE 16th Street
and west of Kirkland Avenue NE, where the family
village proposed under the Planned Action
Alternatives would be located. To ensure that future
redevelopment exhibits quality urban design, the
City should consider either including this area in
Design District D or creating a new design district
for this purpose. Prior to the enactment of new
design standards, the City may condition
development north of NE 16th Street to meet
appropriate standards of Design District D in RMC 4-
3-100.
Nexus
City of Renton Comprehensive Plan
RMC Title 4 Chapter 2 Zoning Districts - Uses and Standards
RMC 4-3-100 Urban Design Regulations
RMC 4-4-075 Lighting, Exterior On-Site
13. Historic/Cultural
Significant Impacts
Table 25. Historic/Cultural Impacts
Potential Sunset Terrace
Type of Impact Planned Action Study Area Redevelopment Subarea
Construction Typical project impacts that could No significant cultural resources
disrupt or adversely affect are known to exist in the Potential
cultural resources in the Planned Sunset Terrace Redevelopment
Action Study Area include Subarea.
demolition, removal, or
substantial alteration without
Planned Action Ordinance 38
Attachment B: Mitigation Document
ORDINANCE NO. 5610
Potential Sunset Terrace
Type of Impact Planned Action Study Area Redevelopment Subarea
consideration of historic and
archaeological sites and/or
features.
Operations, Indirect, and
Cumulative Impacts
Development could occur on or
near parcels in the Planned Action
Study Area that contain
previously identified or unknown
cultural resources. This
development would likely involve
ground disturbance and
modifications to buildings and
structures, which could result in a
potentially significant impact on
cultural resources. Because ofthe
potential to impact unknown
cultural resources, a detailed
review of potential impacts on
cultural resources would be
required on a project-specific
basis.
Future development in the
subarea would have no impact
any known National Register of
Historic Places (NRHP)-eligible
archaeological or historic
resources, and the likelihood of
impacts on unknown cultural
resources is considered low.
Unavoidable Adverse Impacts
The impacts on cultural resources caused by new development associated with any alterative could
be significant and unavoidable, depending on the nature and proximity of the proposed
development project. Implementation of mitigation measures set forth in Draft EIS Section 4.13.2 as
amended in the Final EIS would identify potential impacts on cultural resources, at which point
measures to reduce them to less than significant could be taken.
Mitigation Measures
Table 26. Historic/Cultural Mitigation Measures
Planned Action Study Area
Potential Sunset Terrace Redevelopment
Subarea
In the event that a proposed development site
within the study area contains a building at
least 50-years of age that is not listed in or
determined eligible for listing in the National
Register of Historic Places (NRHP) or
Washington Heritage Register (WHR), the
project shall be required to undergo review to
determine if the property is considered eligible
for listing.
It is recommended that the City adopt a
historic preservation ordinance that considers
the identification and treatment of historic
resources listed in or determined eligible for
listing in the NRHP or WHR, or locally
designated. Until such time an ordinance is
Since no native "A" horizon was identified at the
Edmonds-Glenwood site and throughout the
Sunset Terrace public housing complex, no
further archaeological investigations are
recommended for these areas. Although a
buried, native "A" horizon was identified on
RHA's Piha site (east of Harrington Avenue NE),
the potential for an archaeological discovery is
very low. The project should proceed with no
further archaeological investigations. If
archaeological materials are discovered during
ground disturbing excavations, the contractor
shall halt excavations in the vicinity of the find
and contact DAHP.
If human skeletal remains are discovered, or if
during excavation archaeological materials are
Planned Action Ordinance 39
Attachment B: Mitigation Document
ORDINANCE NO. 5610
Planned Action Study Area
adopted, the City must enter into consultation
with DAHP regarding potential impacts on
historic resources in the study area that are
listed in or determined eligible for listing in the
NRHP or WHR.
« For future projects that involve significant
excavation in the study area the City must
enter into consultation with Washington State
Department of Archaeology and Historic
Preservation (DAHP] to determine the
likelihood of and recommendations for
addressing potential archaeological resources.
It maybe necessary to complete archaeological
testing prior to significant excavation in the
study area, such as digging for footings or
utilities. Archaeological project monitoring
may be recommended for subsurface
excavation and construction in high
probability areas.
• In the event that a future development project
in the study area is proposed on or
immediately surrounding a site containing an
archaeological resource, the potential impacts
on the archaeological resource must be
considered and, if needed, a study conducted
by a qualified archaeologist to determine
whether the project would materially impact
the archaeological resource. If the project
would disturb an archaeological resource, the
City shall impose any and all measures to avoid
or substantially lessen the impact. If avoidance
ofthe archaeological resource is not possible,
an appropriate research design must be
developed and implemented with full data
recovery ofthe archaeological resource prior
to the development project. The avoidance of
archaeological resources through selection of
project alternatives and changes in design of
project features in the specific area of the
affected resource[s) would eliminate the need
for measuring or mitigating impacts.
• Non-site-specific mitigation could include
developing an educational program, interpretive
displays, and design guidelines that focus on
compatible materials, and professional
publications.
Potential Sunset Terrace Redevelopment
Subarea
uncovered, the proponent will immediately stop
work and notify agencies as outlined in the
Unanticipated Discovery Plan provided in Draft
EIS Appendix J and as amended by Final EIS
Chapter 4 (and provided as Attachment 1 of this
Attachment B). If the project would disturb an
archaeological resource, the City shall impose
any and all measures to avoid or substantially
lessen the impact. If avoidance of the
archaeological resource is not possible, an
appropriate research design must be developed
and implemented with full data recovery of the
archaeological resource prior to the
development project. The avoidance of
archaeological resources through selection of
project alternatives and changes in design of
project features in the specific area ofthe
affected resource(s) would eliminate the need
for measuring or mitigating impacts.
Nexus
City of Renton Comprehensive Plan
Planned Action Ordinance 40
Attachment B: Mitigation Document
ORDINANCE NO. 5610
14. Transportation
Significant Impacts
Table 27. Transportation Impacts
Type of Impact Planned Action Study Area
Potential Sunset Terrace
Redevelopment Subarea
Construction
Operations
Traffic Operations
Transit
Nonmotorized
Potential impacts that could result
from construction activities
include increased traffic volumes,
increased delays, detour routes,
and road closures.
Lane closures in both directions of
NE Sunset Boulevard could be
required during construction
roadway improvements
associated with the Planned
Action Alternatives. This
reduction in capacity would likely
increase travel times, and may
force reroutes through local
streets.
At Edmonds Avenue NE and NE
12th Street LOS F conditions are
predicted in both 2015 and 2030.
At Harrington Avenue NE and NE
12th Street LOS F conditions are
expected in 2030.
At both Edmonds Avenue NE and
at NE 10th Street, expanded bus
zones in both directions of travel
would provide larger waiting
areas for transit users and would
be conveniently located near
residential or retail land uses. Bus
zones and existing bus stops could
include shelters with adequate
lighting and street furniture.
Planned Action Alternatives
include improved nonmotorized
facilities such as bicycle lanes,
sidewalks, and marked
crosswalks. Design elements such
as bike route signage, bike storage
lockers, and bicycle detection at
signalized intersections are
included to promote bike
ridership and safety.
The Preferred Alternative
includes a 5-foot-wide eastbound
Same as Planned Action Study
Area
Delay times in the subarea could
worsen slightly due to the
increase in trips generated, but
intersections would likely operate
better than the LOS D threshold.
Same as Planned Action Study
Area
Same as Planned Action Study
Area
Planned Action Ordinance 41
Attachment B: Mitigation Document
ORDINANCE NO. 5610
Type of Impact Planned Action Study Area
Potential Sunset Terrace
Redevelopment Subarea
Sustainability
Indirect and Cumulative
bicycle lane, rather than bicycle
lanes in both directions (as in
Alternative 3).
Sidewalk connections from
NE Sunset Boulevard to side
streets would be improved,
strengthening the connectivity
between the residential areas and
NE Sunset Boulevard. To improve
safety for pedestrians crossing the
roadways, the Preferred
Alternative includes special
paving at crosswalks and
intersections.
The Planned Action Alternatives
score a minimum of 33 with a
maximum of up to 99 out of 118
points in the Greenroads metric;
therefore, the alternatives meet
the minimum Greenroads
certification level and could
achieve the highest level of
certification.
The Planned Action Alternatives
score most strongly in the "Access
and Equity" section of the
Greenroads evaluation, as
improving access for pedestrians,
bicyclists, and transit users are
important elements of this
alternative.
The Planned Action Alternatives
typically include higher levels of
improvements or higher quality of
improvements such as wider
sidewalks, wider planting areas,
and special paving.
Growth would increase in
comparison to Comprehensive
Plan land use estimates; however,
the Planned Action Alternatives'
operational analysis is based on a
model that addresses growth
cumulatively on the City's current
and planned roadway system and
any operational deficiencies can
be mitigated to meet City of
Renton thresholds.
Same as Planned Action Study
Area
Same as Planned Action Study
Area
Planned Action Ordinance 42
Attachment B: Mitigation Document
ORDINANCE NO. 5610
Unavoidable Adverse Impacts
The alternatives are expected to contribute to a cumulative increase in traffic volumes within the
study area, which could degrade some roadway operations. The increase in traffic volumes due to
activities in the study area is considered unavoidable, but the roadway operation and LOS can be
mitigated to meet applicable LOS standards.
Mitigation Measures
Table 28. Transportation Mitigation Measures
Planned Action Study Area
Opera tional Mitiga tion
Planned Action applicants shall pay a Transportation
Impact Fee as determined by the Renton Municipal
Code at the time of payment, payable to the City as
specified in the Renton Municipal Code.
Planned Action applicants shall provide a traffic
analysis estimating trips generated by their
proposed development and demonstrate
conformance with the Planned Action Ordinance trip
ranges and thresholds in Section 3(d) (4) as well as
demonstrate conformance with the City's
concurrency requirements in RMC 4-6-070. When
demonstrated by an applicant's analysis that
operational LOS standards reviewed in the EIS are
exceeded at the following locations, intersection
improvements shall be made by planned action
applicants as appropriate to meet LOS D and in
conformance with the City's street standards in RMC
4-6-060:
• Edmonds Avenue NE and NE 12th Street: an
additional southbound left-turn pocket and
westbound right-turn pocket would improve
operations to LOS E, while added pedestrian- and
bicycle-oriented paths or multi-use trails to
encourage mode shifts would likely improve
operations to LOS D.
• At the Harrington Avenue NE and NE 12th Street
intersection: the eastbound and westbound
approaches could be restriped to increase the
number of lanes and, therefore, the capacity ofthe
intersection. With implementation, this
intersection would improve to LOS D.
Construction Mitigation
Temporary mitigation during construction may be
necessary to ensure safe travel and manage traffic
delays. The following mitigation measures shall be
implemented prior to or during construction within
the Planned Action Study Area.
« Prior to construction:
Potential Sunset Terrace Redevelopment
Subarea
No permanent mitigation measures are
recommended within Potential Sunset Terrace
Redevelopment Subarea. The intersection
operations under action alternatives are
expected to be within the LOS D threshold.
During construction, mitigation measures are
those described for the Planned Action Study
Area. Flaggers, advance warning signage to
alert motorists of detours or closures, and
reduced speed zones would likely benefit
traffic operations.
Planned Action Ordinance 43 Attachment B: Mitigation Document
ORDINANCE NO. 5610
Potential Sunset Terrace Redevelopment
Planned Action Study Area Subarea
o Assess pavement and subsurface condition
of roadways being proposed for transport of
construction materials and equipment
Ensure pavement can support loads.
Adequate pavement quality would likely
reduce the occurrence of potholes and
would help maintain travel speeds.
o Alert landowners and residents of potential
construction. Motorists may be able to
adjust schedules and routes to avoid
construction areas and minimize
disruptions.
o Develop traffic control plans for all affected
roadways. Outline procedures for
maintenance of traffic, develop detour plans,
and identify potential reroutes.
o Place advance warning signage on roadways
surrounding construction locations to
minimize traffic disturbances.
• During construction:
o Place advance warning signage on NE
Sunset Boulevard and adjacent arterials to
warn motorists of potential vehicles
entering and exiting the roadway. Signage
could include "Equipment on Road," "Truck
Access," or "Slow Vehicles Crossing."
o Use pilot cars as dictated by the Washington
State Department of Transportation
(WSDOT).
o Encourage carpooling among construction
workers to reduce traffic volume to and
from the construction site.
o Employ flaggers, as necessary, to direct
traffic when vehicles or large equipment are
entering or exiting the public road system to
minimize risk of conflicts between trucks
and passenger vehicles.
o Maintain at least one travel lane at all times,
if possible. Use flaggers to manage
alternating directions of traffic. If lane
closures must occur, adequate signage for
potential detours or possible delays should
be posted.
o Revisit traffic control plans as construction
occurs. Revise traffic control plans to
improve mobility or address safety issues if
necessary.
Planned Action Ordinance 44
Attachment B: Mitigation Document
ORDINANCE NO. 5610
Nexus
Renton Comprehensive Plan
RMC 4-6-060 Street Standards
15. Parks and Recreation
Significant Impacts
Table 29. Parks and Recreation Impacts
Type of Impact Planned Action Study Area
Potential Sunset Terrace
Redevelopment Subarea
Construction
Operations
Indirect
Construction could temporarily
disrupt pedestrian access to
existing park properties. Active
construction sites also represent
opportunities for creative play
and attractive adventure for
young people in the community.
Although there is an increase in
community park acreage there
would continue to be a deficiency
in neighborhood and community
park acreage in the Planned
Action Study Area. Deficiencies
are less than for the Preferred
Alternative than Alternative 3
which has a similar population
but less proposed park facilities.
Ballfield and sport court LOS
standards are applied citywide;
thus a lack of such facilities within
the Planned Action Study Area or
the Potential Sunset Terrace
Redevelopment Subarea does not
indicate an LOS deficiency.
NE Sunset Boulevard would be
improved to include bike lanes,
intersection improvements, and
sidewalks, providing a more
walkable corridor and more
direct access between residential
areas and park land
Indirect impacts are expected to
mostly fall on the City's regional
and communitywide parks and
recreation facilities. For example,
as the population increases in the
Planned Action Study Area, there
will be a growing deficiency of
Neighborhood and Community
No parks and recreation facilities
exist in this subarea and no
construction impacts are
anticipated.
With Alternative 3, portions of
Harrington Avenue NE right-of-
way within the subarea would be
converted to 0.25 acres of passive
open space.
Under the Preferred Alternative,
Sunset Court Park would be
relocated to the Sunset Terrace
Subarea. Additionally, this park
would be expanded from 0.5 acres
to 2.65 acres and would have a
vacation of Harrington Avenue NE
similar to Alternative 3. This
increases the acreage in
neighborhood park land for this
subarea and the Planned Action
Study Area.
Additionally, a library would be
constructed in the subarea.
Facility deficiencies in this
subarea would also likely lead to
spillover demand for active
playfields for team sports in other
parts of Renton as well as in
surrounding communities.
Planned Action Ordinance 45 Attachment B: Mitigation Document
ORDINANCE NO. 5610
Potential Sunset Terrace
Type of Impact Planned Action Study Area Redevelopment Subarea
Parks. Due to proximity, those
demands would likely be
displaced to nearby regional
facilities such as Gene Coulon
Park as well as in surrounding
communities.
Cumulative Increased demands for park and Same as Planned Action Study
recreation facilities and services Area
generated by the forecast
population growth under each of
the alternatives would add to
those created by general
population growth throughout the
Renton community.
Unavoidable Adverse Impacts
Under studied alternatives for the Planned Action Study Area and Potential Sunset Terrace
Redevelopment Subarea, there would be an increased demand for parks and recreation facilities.
With the application of mitigation measures, no significant unavoidable impacts are anticipated.
Mitigation Measures
Table 30. Parks and Recreation Mitigation Measures
Planned Action Study Area Potential Sunset Terrace Redevelopment Subarea
During construction, impacts adjacent to or in
parks within the Planned Action Study Area, such
as an increase in noise, dust, and access
limitations, shall be mitigated as per a
construction mitigation plan developed by
Planned Action applicants and approved by the
City.
Planned Action Applicants shall pay a Parks and
Recreation Impact fee as determined by the
Renton Municipal Code at the time of payment,
payable to the City as specified by t he Renton
Municipal Code.
The following four mitigation measures would
help improve the availability or access to parks
and recreation facilities in the Planned Action
Study Area.
• The City is initiating a parks, recreation, open
space and natural resources plan for
completion in 2011. That plan could identify
alternative LOS standards and parks and
recreation opportunities inside or outside of
the Planned Action Study Area that could
serve the local population.
« The City is considering amendments to its
With the prevalence of public facilities in the
Planned Action Study Area as a whole, and the
addition of a central park and a library in the
Potential Sunset Terrace Redevelopment
Subarea, there is opportunity to manage the
current facilities in a manner that maximizes
their beneficial parks and recreation uses for
future population growth. The mitigation
measures proposed for the Planned Action Study
Area shall apply to the Potential Sunset Terrace
Redevelopment Subarea.
Planned Action Ordinance 46
Attachment B: Mitigation Document
ORDINANCE NO. 5610
Planned Action Study Area Potential Sunset Terrace Redevelopment Subarea
development codes that would provide for
payment of a fee-in-lieu for required common
open space. As proposed, the fee-in-lieu
option could be executed when development
sites are located within 0.25 mile of a public
park and when that park can be safely
accessed by pedestrians. The City's package of
amendments also includes park impact fees.
• The City and Renton School District could
develop a joint-use agreement for public use
of school grounds for parks and recreation
purposes during non-school hours. Joint-use
agreements between the City and Renton
School District could also be used to, at least
partially, address the LOS deficiencies in
existing recreation facilities.
« The City could add parks and recreation
facilities such as:
o The City could convert current public
properties no longer needed for their
current uses to parks and recreation uses,
such as the Highlands Library that is
intending to move and expand off site.
Draft EIS Figure 4.15-2 shows properties
in public use.
o The City could purchase private property
for parks and recreation use. An efficient
means would be to consider properties in
the vicinity of existing parks and
recreation facilities or where additional
population growth would be greatest.
Draft EIS Figure 4.15-2 shows locations
where future demand could be greater
and where the City could focus acquisition
efforts.
Nexus
Renton Comprehensive Plan
Parks, Recreation, Open Space and Natural Resources Plan
16. Public Services
Significant Impacts
Table 31. Public Services Impacts
Potential Sunset Terrace
Type of Impact Planned Action Study Area Redevelopment Subarea
Planned Action Ordinance 47 Attachment B: Mitigation Document
ORDINANCE NO. 5610
Type of Impact Planned Action Study Area
Potential Sunset Terrace
Redevelopment Subarea
Construction
Police
Fire and Emergency Medical
Services
Education
Health Care
Social Services
The Renton Police Department
could experience an increase in
calls for service related to
construction site theft, vandalism,
or trespassing relating to
construction.
Construction impacts on fire
protection and emergency
medical services could include
increased calls for service related
to inspection of construction sites
and potential construction-related
injuries.
The McKnight Middle School
expansion would occur similar to
other alternatives. In addition,
changes would occur at the
Hillcrest Early Childhood Center
and the reconfigured Hillcrest
Early Childhood Center would be
part of a family village concept
that would include recreation and
housing. The expansion of
McKnight Middle School is not
expected to disrupt student
attendance at the campus.
There may be temporary changes
to nonmotorized and motorized
access to health care services
during infrastructure
construction (e.g., NE Sunset
Boulevard), but alternative routes
would be established.
There may be temporary changes
to nonmotorized and motorized
access to social services during
infrastructure construction (e.g.,
NE Sunset Boulevard), but
alternative routes would be
established.
Construction at the Hillcrest Early
Childhood Center as part ofthe
family village redevelopment,
would require relocation ofthe
Friendly Kitchen weekly meal
program that meets at that site.
The Friendly Kitchen program
would either be relocated
permanently as a part of the
redevelopment or may be
Same as Planned Action Study
Area
Same as Planned Action Study
Area
No impact
Same as Planned Action Study
Area
Redevelopment ofthe Sunset
Terrace housing development
would displace the existing on-
site community meeting space
that is currently used for on-site
social service programs. However,
the space would be replaced
onsite or nearby with a larger and
more modern facility, and with
appropriate phasing of
development, disruption to on-
site social service programs can
be minimized or avoided.
Planned Action Ordinance 48 Attachment B: Mitigation Document
ORDINANCE NO. 5610
Type of Impact Planned Action Study Area
Potential Sunset Terrace
Redevelopment Subarea
Solid Waste
Library
Operations
Police
Fire and Emergency Medical
Services
Education
Health Care
accommodated as part ofthe
range of social services provided
at the family village.
Planned Action Alternatives
would result in construction-
related waste generation.
When the library is relocated,
library services may be
temporarily unavailable in the
study area, but services would be
available at other branches.
Applying the Renton Police
Department staffing per
population standard to the
anticipated population increase
would result in a need for an
estimated 8.6 to 9.3 additional
police officers to address increase
in service calls related to growth.
Applying the fire service's staffing
ratio to growth in the study area
would result in the need for an
additionall.2 tol.3 firefighter full-
time equivalents (FTEs]
compared to existing conditions
to maintain the City's existing
staffing ratio.
Population growth would result in
an increase in approximately 526
to 567 students in the Renton
School District compared to
existing conditions. The district's
planned opening of Honey Dew
Elementary, as well as
construction of additions to
McKnight Middle School and
Hazen High School, would
accommodate this increase in
student population.
New students within the study
area would include a higher than
average number of students
speaking English as a second
language, increasing demands on
the district's English Language
Learners Program.
Increase in study area population
would increase the need for
Same as Planned Action Study
Area
Same as Planned Action Study
Area
Applying the Renton Police
Department standard to the
anticipated population increase
would account for 1.0 tol.8 ofthe
approximately 8.6 to 9.3
additional police officers to
address population growth study
area.
Applying the fire service's staffing
ratio to growth in the study area
to the population growth of in this
subarea would result in the need
for less than 0.14 to 0.2 ofthe 1.2
tol.3 firefighter FTEs needed in
the overall Planned Action Study
Area to maintain the City's
existing staffing ratio.
Population growth would result in
approximately 60 to 107
additional students compared to
existing conditions. It is
anticipated that this additional
increment of students would be
accommodated by the district's
planned capital improvements,
including opening Honey Dew
Elementary, expansion of
McKnight Middle School, and
redeveloping the Hillcrest Early
Childhood Center which would
provide additional student
capacity in addition to early
education programs that
currently exist on the site.
Based VMC's existing ratio of
hospital beds to district
Planned Action Ordinance 49
Attachment B: Mitigation Document
ORDINANCE NO. 5610
Type of Impact Planned Action Study Area
Potential Sunset Terrace
Redevelopment Subarea
Social Services
Solid Waste
Library Services
Indirect and Cumulative
hospital beds in the Valley
Medical Center [VMC] service
area by approximately 4.1 to 4.4
beds, based on the current ratio of
hospital beds to district service
area population. Additional
population growth may also
result in increased demand at
VMC's nearby primary care and
urgent care clinics.
Planned Action Alternatives
include major public investments,
which could expand upon or
enhance social services in the
study area. Among the key
components outside of Potential
Sunset Terrace Redevelopment
Subarea is development of a
family village in the North
Subarea.
Solid waste generation is
expected to increase by around
129,689 to 139,000 pounds per
week compared to existing
conditions. A portion of this waste
stream would be diverted to
recyclables.
Anticipated growth would create
a demand for an additional 1,940
to 2,079 square feet of library
space compared to existing
conditions.
All alternatives increase growth
above existing conditions and
would add to a citywide increase
in demand for public services;
however, the alternatives are
accommodating an increment of
growth already anticipated in the
Comprehensive Plan at a citywide
level, and planned growth to the
year 2031 will be addressed in the
City's 2014 Comprehensive Plan
population, the anticipated
population increase would result
in a small increase of
approximately 0.5 to 0.8 hospital
beds ofthe total assumed for the
entire study area.
The subarea's new affordable
housing development for seniors
would include enriched senior
services on site, including elder
day-health for off-site patients in
a 12,500-square-foot space on the
northeastern vacant RHA parcel.
The increased population of
affordable housing and, in
particular, affordable senior
housing would increase the
demand for social services,
including senior services
accessible to the subarea.
Additional community space at
the family village, would be
located outside but nearby the
subarea.
Solid waste generation from the
subarea would increase by about
14,750 to 9,300 pounds per week
compared to existing conditions.
A percentage of this waste would
be diverted to recycling.
Anticipated growth in the subarea
would account for approximately
221-397 square feet of library
facilities to meet the growth in
demand.
Same as Planned Action Study
Area
Planned Action Ordinance 50 Attachment B: Mitigation Document
ORDINANCE NO. 5610
Potential Sunset Terrace
Type of Impact Planned Action Study Area Redevelopment Subarea
update..
Unavoidable Adverse Impacts
Demand for public services will continue to increase in conjunction with population growth. With
advanced planning and implementation of mitigation measures, no significant unavoidable adverse
impacts related to police, fire/emergency medical, education, health care, social services, solid
waste, or library services are anticipated.
Mitigation Measures
Table 32. Public Services Mitigation Measures
Potential Sunset Terrace Redevelopment Subarea
Police
Mitigation measures described for the Planned
Action Study Area also apply to this Subarea.
Fire and Emergency Medical Services
Mitigation measures described for the Planned
Action Study Area also apply to this Subarea.
Education
No mitigation measures are necessary or
proposed.
Health Care
No mitigation measures are necessary or
proposed.
Social Services
RHA's provision of community space that could
be used for social services or community meeting
space for community organizations would serve
as mitigation. See the discussion under the
Planned Action Study Area.
RHA should maintain a community meeting space
within or near the subarea during construction
phase of Sunset Terrace redevelopment that
allows for on-site social service programs to
continue to meet within the subarea.
Solid Waste
Mitigation measures described for the Planned
Action Study Area also apply to this Subarea.
Public Library
The King County Library System should continue
to monitor growth within its geographic clusters,
and adjust plans for facility sizing and spacing
according to shifting trends in population growth.
Planned Action Study Area
Police
During construction, security measures shall be
implemented by developers to reduce potential
criminal activity, including on-site security
surveillance, lighting, and fencing to prevent
public access. Such measures shall be detailed in
a construction mitigation plan prepared by
Planned Action Applicants and approved by the
City.
Planned Action applicants shall design street
layouts, open space, and recreation areas to
promote visibility for residents and police. Street
and sidewalk lighting would discourage theft and
vandalism, and enhance security.
Fire and Emergency Medical Services
Developers will construct all new buildings in
compliance with the International Fire Code and
Renton Development Regulations (RMC Title 4),
including provision of emergency egress routes
and installation of fire extinguishing and smoke
detection systems. All new buildings will comply
with accessibility standard for people with
disabilities, per the requirements ofthe
Americans with Disabilities Act
Planned Action applicants shall pay a Fire Impact
Fee as determined by the Renton Municipal Code
at the time of payment, payable to the City as
specified in the Renton Municipal Code.
Education
During renovation ofthe Hillcrest Early Childhood
Center, the Renton School District shall provide
temporary transportation or take other
equivalent measures to ensure accessibility ofthe
early education program to area children who
attend the program.
Since the school district typically plans for a
Planned Action Ordinance 51
Attachment B: Mitigation Document
ORDINANCE NO. 5610
Planned Action Study Area Potential Sunset Terrace Redevelopment Subarea
shorter-term horizon than the 20 years
envisioned for the Planned Action, the district will
continue to monitor student generation rates into
the future and adjust its facility planning
accordingly. The district will continue to
implement existing plans to expand permanent
student capacity at area schools. In addition, the
district may utilize portable classrooms or shift
attendance boundaries to address student
capacity issues that arise on a shorter term basis.
The district will also continue monitoring growth
in the number of English Language Learner
students in the district, and plan additional
capacity in that program to meet growing
demands for that service, particularly in schools
with high percentages of English Language
Learners, such as Highlands Elementary.
The school district imposes a school impact fee for
new residential construction. This funding source
can be used to help provide expanded school
facilities needed to serve the growth anticipated
under all alternatives (RMC 4-1-160).
Health Care
There are no mitigation measures needed or
proposed for health care due to the negligible
change in the number of beds.
Social Services
The City's planned improvements to the
streetscape and transit facilities that make
walking, bicycling, and taking transit more viable
modes of transportation would improve
accessibility of social services located outside the
Planned Action Study Area to area residents.
RHA, Renton School District, and the City should
work together to relocate the Friendly Kitchen
community feeding program when the Hillcrest
Early Childhood Center campus, the current site
of this program, is redeveloped as part of a family
village. Relocation should occur at an accessible
location nearby to maintain service to the existing
community that relies upon the Friendly Kitchen
services. If possible, Renton School District and
RHA should incorporate space for the
continuation ofthe Friendly Kitchen Program
within the family village.
RHA and the City should consider developing a
community center facility as part of Sunset
Terrace redevelopment or the family village
development or at another location in the Planned
Action Study Area. The center would provide an
accessible on-site space for a comprehensive
range of social services for residents in the
Planned Action Ordinance 52
Attachment B: Mitigation Document
ORDINANCE NO. 5610
Planned Action Study Area Potential Sunset Terrace Redevelopment Subarea
Planned Action Study Area, focused on alleviating
poverty, and addressing the needs of some ofthe
more predominant demographic groups found
within the Planned Action Study Area—seniors,
individuals living with disabilities, those speaking
English as a Second Language, and youth.
Solid Waste
The City shall require development applicants to
consider recycling and reuse of building materials
when redeveloping sites, and as part of their
application explain what measures are included.
The City may condition Planned Action
applications to incorporate feasible recycling and
reuse measures.
Public Library
The King County Library System should continue
to monitor growth within its geographic clusters,
and adjust plans for facility sizing and spacing
according to shifting trends in population growth.
Nexus
Renton Comprehensive Plan
RMC Title IV Chapter 1 Administration and Enforcement
RMC Title IV Chapter 5 Building and Fire Prevention Standards
17. Utilities
Significant Impacts
Table 33. Utilities Impacts
Potential Sunset Terrace
Type of Impact Planned Action Study Area Redevelopment Subarea
Construction Where new construction occurs, Same as Planned Action Study
it is anticipated that existing Area
telecommunication lines would
be removed, replaced, or
abandoned in place.
Redevelopment would require
coordination with service
providers regarding the location
of proposed structures, utilities,
and site grading.
To accommodate the required
demand and capacity for water
and sewer services for new
development and redevelopment
in the study area, existing water
and sanitary sewer lines would
Planned Action Ordinance 53 Attachment B: Mitigation Document
ORDINANCE NO. 5610
Potential Sunset Terrace
Type of Impact Planned Action Study Area Redevelopment Subarea
be abandoned in place or
removed and replaced with new
and larger lines. New and larger
water and sewer mains would be
installed in existing and/or future
dedicated public rights-of-way or
within dedicated utility
easements to the City, and would
connect with the existing
distribution network. Existing
utility lines would continue to
service the site during
construction, or temporary
bypass service would be
implemented until the
distribution or collection system
is complete and operational.
Operations
Telecommunications Increased capacity requirements Same as Planned Action Study
with increased levels of Area
population and commercial
activity in each of the alternatives
could require new fiber within
the Planned Action Study Area
and coordination with
telecommunication providers as
development occurs should be
performed so that appropriate
facilities can be planned.
The increase in the average daily
demand (ADD) is projected to be
0.56 to 0.59 million gallons per
day within the Planned Action
Study Area.
The growth projected would
increase the storage
requirements for the Highlands
435 and 565 pressure zones and
further increase the existing
storage deficit in the Highlands
435 pressure zone. In addition,
the development that is projected
for the Planned Action Study Area
would increase the fire-flow
requirements with more
multifamily development and
The increase in ADD for this
subarea is 0.05 to 0.09 million
gallons per day. The increase in
the peak daily demand (PDD) for
this subarea is 0.09 to 0.16
million gallons per day.
The primary significant impact of
subarea development on the
water distribution system would
be related increased fire-flow
requirements. These increased
fire flow requirements are
substantial and cannot be met by
the existing distribution system
serving the subarea. Water
system pressure provided by the
435 pressure zone within the
Planned Action Ordinance 54
Attachment B: Mitigation Document
ORDINANCE NO. 5610
Type of Impact Planned Action Study Area
Potential Sunset Terrace
Redevelopment Subarea
Wastewater
Indirect and Cumulative
commercial development The
capacity of the existing water
distribution system to meet these
higher fire flows is inadequate if
system improvements are not
constructed.
The increase in wastewater load
for the Planned Action Study Area
is 0.59 to 0.63 million gallons per
day.
This increase in wastewater load
is not expected to affect the
wastewater interceptors that
provide conveyance of
wastewater from the Planned
Action Study Area but it could
increase surcharging that is
currently experienced and
observed within the Planned
Action Study Area.
Demands on utilities would
increase as a result of cumulative
development. No significant
cumulative impacts are
anticipated as long as the
replacement of water and sewer
infrastructure is properly
planned, designed, and
constructed, and funding
strategies are identified and
approved by City Council.
subarea is not adequate for
multistory development and/or
for development with fire
sprinkler systems. New water
mains extended from the higher-
pressure 565 pressure zone
system to service the subarea
would need to be phased to
accommodate growth.
The increase in wastewater flow
in this subarea is 0.05 to 0.10
million gallons per day. Similar to
the Planned Action Study Area,
no impacts on the interceptors
that provide conveyance from the
subarea are expected, but the
increased sewer load could
impact local sewers within the
subarea.
Same as Planned Action Study
Area
Unavoidable Adverse Impacts
All studied alternatives are anticipated to increase demand for water, wastewater, and
telecommunication services. Increased growth in the Planned Action Study Area has the potential to
exacerbate existing water and wastewater system deficiencies. However, with application of
mitigation measures, no significant unavoidable adverse impacts are anticipated.
Mitigation Measures
Table 34. Utilities Mitigation Measures
Planned Action Study Area Potential Sunset Terrace Redevelopment Subarea
Water
To mitigate the current and projected water
storage deficit in the pressure zones that serve
Water
The mitigation measures that are required in the
Potential Sunset Terrace Redevelopment Subarea
Planned Action Ordinance 55 Attachment B: Mitigation Document
ORDINANCE NO. 5610
Planned Action Study Area Potential Sunset Terrace Redevelopment Subarea
the study area, the City completed the
construction ofthe 4.2-million-gallon Hazen
Reservoir in the Highlands 565 pressure zone
in March 2009. The City also completed a water
distribution storage feasibility study to develop
conceptual options and planning level cost
estimates for expanding the storage capacity at
two existing City-owned sites: the Highlands
Reservoirs site and the Mt. Olivet Tank site
(HDR, Inc. 2009). Financial strategies for the
planning, design, and construction ofthe
storage-capacity expansion have not been
determined at this time.
To mitigate the fire-flow requirements for the
proposed level of development and
redevelopment within the Planned Action Study
Area, larger diameter (12-inch) piping is
required throughout the Planned Action Study
Area to convey the higher fire-flow
requirements. The new water mains will be
looped for reliability and redundancy of service,
as required by City policies and water design
standards. The larger mains will be installed
within the dedicated right-of-way in a north-to-
south and east-to-west grid-style water system.
Additional mains within the development sites
will also be required to provide water to
hydrants and water meters, and should be
looped within the development site around
buildings. To provide the water pressure
requirements for multistory buildings and to
support the pressure requirements for fire
sprinkler systems, the new water mains will be
connected to the higher-pressure Highlands
565 pressure zone. The options to address fire
flow within the Planned Action Study Area are
further described below.
The Highlands 565 pressure zone typically has
enough pressure to meet the pressure needs for
fire-flow requirements for the proposed
development and redevelopment in the
Planned Action Study Area, but is limited in
providing the fire-flow rate due to the size of
the existing water mains that are generally
smaller than 12 inches in diameter. The
Highlands 435 pressure zone operates at lower
pressures and has smaller-diameter pipes in
this area ofthe pressure zone and, therefore,
cannot meet both the pressure requirements
and the fire-flow capacity (flow) requirements.
The options developed to remedy fire-flow and
pressure inadequacies are shown in Draft EIS
Section 4.17, Figure 4.17-1 and summarized
are similar to those noted for the Planned Action
Study Area. The water storage deficit would be met
with an increase in storage at the existing Highlands
Reservoirs site, and fire-flow requirements would
require the new 12-inch-diameter pipe loop
throughout this subarea and realignment ofthe
Highlands 435 and Highlands 565 pressure zones.
As noted previously, the City has recently installed a
new 12-inch-diameter main for development
adjacent to this subarea, and as development occurs
in the subarea, the pipe network would need to be
extended to serve the development. A more detailed
discussion of needed system improvements is
provided in Attachment 2.Wastewater Collection
The sewers within the Potential Sunset Terrace
Redevelopment Subarea are also identified for
replacement based on age and condition in the
City's Long Range Wastewater Management Plan.
Based on the increased wastewater load within the
Potential Sunset Terrace Redevelopment Subarea,
the local sewers may need to be replaced with
upsized pipe to manage the increased wastewater
load from the subarea. A more detailed discussion of
needed sewer system improvements is provided
Attachment 2.
Planned Action Ordinance 5g Attachment B: Mitigation Document
ORDINANCE NO. 5610
Planned Action Study Area Potential Sunset Terrace Redevelopment Subarea
below.
A 12-inch-diameter pipeline loop shown in
Draft EIS Section 4.17, Figure 4.17-1 was
developed to extend the Highlands 565
pressure zone into the existing Highlands 435
pressure zone. This 12-inch-diameter loop was
also extended north of NE 12th Street in the
existing Highlands 565 pressure zone to
improve the conveyance capacity throughout
the Planned Action Study Area. This 12-inch-
diameter loop improvement builds on the City's
recent extension of the Highlands 565 pressure
zone into the Highlands 435 pressure zone to
support fire-flow requirements for the
Harrington Square Development.
In addition to the 12-inch-diameter pipe loop
shown in Draft EIS Section 4.17, Figure 4.17-1,
additional piping improvements for each
development served from the 12-inch-diameter
loop are expected to be required to provide
sufficient fire flow and pressure throughout
each development The sizing and layout of this
additional piping will depend on the
development layout, but will require that the
development piping be looped around buildings
and be sufficient in size to maintain the fire-
flow requirements ofthe development.
Planned Action Applicants shall implement
improvements required for water service and
fire flow consistent with City standards in RMC
Title 4 Chapter 6 and RMC 4-5-070
International Fire Code and Fire Prevention
Regulations. Planned Action applicants shall
also demonstrate compliance with RMC 4-1-
180 Charges for Equitable Share of Public
Works Facilities.
Wastewater Collection
The local wastewater collection system n the
Planned Action Study Area is scheduled for
replacement based on age and condition as
noted in the City of Renton Long Range
Wastewater Management Plan (City of Renton
2009b). The local sewers have reached the end
of their useful life and have been identified as
high priority replacements due to leaks and
current surcharging. However, the increased
wastewater load with the development in the
Planned Action Study Area could require that
the local sewers be replaced with larger
diameter pipe to provide sufficient capacity to
the wastewater interceptors that serve the
Planned Action Study Area. The locations where
lines would be improved are identified in Draft
Planned Action Ordinance 57
Attachment B: Mitigation Document
ORDINANCE NO. 5610
Planned Action Study Area Potential Sunset Terrace Redevelopment Subarea
EIS Section 4.17.
Pursuant to RMC 4-6-040.B, any facility
improvements identified by the current
adopted long-range wastewater management
plan (comprehensive sewer system plan) that
are not installed or in the process of being
installed must be constructed by the property
owner(s) or developer(s) desiring service.
Planned Action applicants shall also
demonstrate compliance with RMC 4-1-180
Charges for Equitable Share of Public Works
Facilities.
Nexus
Renton Comprehensive Plan
RMC Title IV Chapter 1 Administration and Enforcement
RMC Title IV Chapter 6 Street and Utility Standards
Advisory Notes
The EIS identified potentially applicable federal, state, and local laws and rules that apply to Planned
Actions and that can serve to mitigate adverse environmental impacts. It is assumed that all
applicable federal, state, and local regulations would be applied. The primary set of applicable local
regulations is the Renton Municipal Code. A list of specific requirements included in Chapter 3 of the
Draft EIS.
Planned Action Ordinance 58
Attachment B: Mitigation Document
ORDINANCE NO. 5610
Attachment 1: Draft EIS, Cultural Resources Appendix J,
Plan and Procedures for Dealing with the Unanticipated
Discovery
Plan and Procedures for Dealing with the Unanticipated Discovery of Human
Skeletal Remains or Cultural Resources during Redevelopment of the Edmonds-
Glenwood Lot, Harrington Lot, and Sunset Terrace Public Housing Complex in
Renton, Washington
Any human skeletal remains that are discovered during this project will be treated with dignity and
respect.
A. If any City of Renton employee or any ofthe contractors or subcontractors believes that he or
she has made an unanticipated discovery of human skeletal remains or cultural resources, all
work adjacent to the discovery shall cease. The area of work stoppage will be adequate to
provide for the security, protection, and integrity of the human skeletal remains, in accordance
with Washington State Law. The City of Renton project manager will be contacted.
B. The City of Renton project manager or the City of Renton representative will be responsible for
taking appropriate steps to protect the discovery. At a minimum, the immediate area will be
secured to a distance of thirty (30) feet from the discovery. Vehicles, equipment, and
unauthorized personnel will not be permitted to traverse the discovery site.
C. If skeletal remains are discovered, the City of Renton will immediately call the King County
Sheriffs office, the King County Coroner, and a cultural resource specialist or consultant
qualified to identify human skeletal remains. The county coroner will determine if the remains
are forensic or non-forensic (whether related to a criminal investigation). The remains should
be protected in place until this has been determined.
D. If the human skeletal remains are determined to be non-forensic, the King County Coroner will
notify the Washington State Department of Archaeology and Historic Preservation. DAHP will
take jurisdiction over the remains. The State Physical Anthropologist will make a determination
of whether the remains are Native American or Non-Native American. DAHP will handle all
consultation with the Muckleshoot Indian Tribe as to the treatment of the remains.
E. If cultural resources are uncovered, such as stone tools or flakes, fire-cracked rocks from a
hearth feature, butchered animal bones, or historic-era objects (e.g., patent medicine bottles,
milk tins, clay pipes, building foundations), the City of Renton will arrange for a qualified
professional archaeologist to evaluate the find. Again, the cultural resources will be protected in
place until the archaeologist has examined the find.
F. If the cultural resources find is determined to be significant, the City of Renton cultural resource
specialist/archaeologist or consulting archaeologist will immediately contact the Washington
State Department of Archaeology and Historic Preservation and the Muckleshoot Indian Tribes
Planned Action Ordinance 59
Attachment B: Mitigation Document
ORDINANCE NO. 5610
to seek consultation regarding the eligibility of any further discovery for inclusion in the
National Register of Historic Places.
CONTACT INFORMATION
Erika Conkling, AICP, Senior Planner
City of Renton Department of Community and Economic Development
Renton City Hall
1055 South Grady Way
Renton, WA 98057
Phone: (425) 430-6578
Stephanie Kramer
Assistant State Archaeologist
Department of Archaeology and Historic Preservation
PO Box 48343
1063 Capitol Way South
Olympia, WA 98504-8343
Phone: (360) 586-3083
King County Sheriff s Office Headquarters
516 Third Avenue, Room W-150
Seattle, WA 98104-2312
Phone: (206) 296-4155 (non-emergency)
Laura Murphy
Muckleshoot Tribe Cultural Resources
39015 172nd Avenue SE
Auburn, WA 98092
Phone: (253) 876-3272
Planned Action Ordinance 60
Attachment B: Mitigation Document
ORDINANCE NO. 5610
Attachment 2: Figure 3.17-1 Potential Subarea Utility
Improvements and Phasing
Planned Action Ordinance 61
Attachment B: Mitigation Document
ORDINANCE NO. 5610
Water
The mitigation measures that are required in the Potential Sunset Terrace Redevelopment Subarea
are similar to those noted for the Planned Action Study Area. The water storage deficit would be met
with an increase in storage at the existing Highlands Reservoirs site, and fire-flow requirements
would require the new 12-inch-diameter pipe loop throughout this subarea and realignment ofthe
Highlands 435 and Highlands 565 pressure zones. As noted previously, the City has recently
installed a new 12-inch-diameter main for development adjacent to this subarea, and as
development occurs in the subarea, the pipe network would need to be extended to serve the
development. A more detailed discussion of needed system improvements is provided below.
Overview
Renton fire and building codes mandate minimum fire flows, durations, and pressure prior to
occupancy of new structures. In the case ofthe Potential Sunset Terrace Redevelopment Subarea
these mandated flows dictate substantial upgrades to the water distribution system. When the fire
flow required for a new development exceeds 2,500 gallons per minute (gpm), the City also requires
that the mains providing that fire flow be looped. Looped water mains provide more reliability and
higher pressures under fire-flow conditions. City regulations also require installation of fire
hydrants along all arterials such as NE Sunset Boulevard.
Taken together these code requirements would lead to a series of new water mains connected to the
565 pressure zone and extended to the various redevelopment projects within the subarea. It is not
possible to predict the precise timing and sequencing of these redevelopment projects. The
following paragraphs illustrate one scenario of water main sequencing that could meet fire-flow
requirements.
Edmonds-Glenwood Phase 1
Phase 1 of the Edmonds-Glenwood redevelopment project consists of townhomes along Glenwood
Avenue NE. Fire-flow requirements for this project are expected to be in the range of 2,500 gpm.
The existing water system in Glenwood Avenue NE cannot provide that amount of fire flow. A new
12-inch-diameter water main would be required to be extended from Harrington Avenue NE and NE
12th Street in the 565 pressure zone, south along Harrington Avenue NE, and continuing along
Glenwood Avenue NE past and through the project site, about 800 feet of new pipe (Segment A on
Figure 3.17-1).
New Library
A new library is proposed in the northeast quadrant of NE Sunset Boulevard and Harrington Avenue
NE. If the fire-flow requirements for the new library are about 2,500 gpm or less, then the existing
12-inch-diameter main in NE Sunset Boulevard could meet that requirement.
Planned Action Ordinance 62 Attachment B: Mitigation Document
ORDINANCE NO. 5610
New Mixed-Use Building Adjacent to New Library
A new mixed-use community service/retail/residential structure is proposed adjacent to the new
library between NE Sunset Boulevard, NE 10th Street, and Sunset Lane NE. It is reasonable to expect
that the combination of additional structure size and exposure (to the library) would mandate fire
flows for this building in excess of 2,500 gpm. In that case, a looped system of mains from the 565
pressure zone would be required. This could be achieved by extending new mains from the existing
12-inch-diameter main in NE Sunset Boulevard northwesterly on both Harrington Avenue NE and
NE 10th Street to Sunset Lane NE. The loop could then be connected by installing a new 12-inch-
diameter main in Sunset Lane NE from Harrington Avenue NE to NE 10th Street. The existing water
main in Sunset Lane NE could then be abandoned in place. This new loop would be about 700 feet in
total length (Segment B on Figure 3.17-1).
RHA's Piha Site
Fire flows required for the PIHA site development have not been established. If the flow
requirement is 2,500 gpm or less, then it could be met by extending a new 12 inch main in NE 10th
Street past the site to Harrington Avenue NE. The extension could either be from NE Sunset
Boulevard (if the project precedes the mixed use development adjacent to the library). Or it could
be from Sunset Lane NE, if the project occurs after the mixed use development adjacent to the
library. The length of pipe required from Sunset Boulevard would be about 500 feet; from Sunset
Lane NE it would be about 350 feet. (Segment C on Figure 3.17-1)
It is possible that required fire flows for the PIHA site would exceed 2,500 gpm. In that situation a
looped main system would be necessary. There are multiple scenarios to meet the looping
requirements. Those fire flow looping scenarios depend largely on the timing and sequencing of the
PISA site project; i.e. does it precede or follow other redevelopment projects contemplated for the
project area.
Under one scenario, if the PIHA site development precedes construction of Phase II and III of the
Sunset Terrace redevelopment looping could be achieved by extending another main (in addition to
Segment C, discussed above) north on Harrington Avenue NE to Glenwood Avenue NE (Segment H
on Figure 3.17-1). If PIHA site development follows Phases II and III of Sunset Terrace, looping
could be achieved by simply connecting the PIHA main extension in NE 10th Street (Segment C) with
Segment E at the intersection of Harrington Avenue NE and NE 10th Street.
Under another scenario, the PIHA site development could proceed before all other projects. In that
case the cost of looping would not be shared with other projects as described in the preceding
paragraphs and the PIHA site project would need to install either a "long-term" or a "temporary" 12
inch diameter "stand alone" water main loop.
The "long-term" alignment would be to extend a 12-inch main in Harrington Avenue NE connecting
to the existing high-pressure water line in NE Sunset Blvd. This option would result in the
installation of a new water main in the section of Harrington Avenue NE that is proposed to be
vacated to help create the Sunset Terrace Redevelopment Neighborhood Park. The new 12-inch
water main would be looped around the west and north side ofthe new PIHA site building and
extended southerly in Sunset Lane NE to NE 10th Street, then southeasterly in NE 10th Street to
connect back to the existing 12-inch line in Sunset Boulevard NE. (Segment PI on Figure 3.17-1)
This new looped water main would be able to deliver about 5,000 gpm.
Planned Action Ordinance 63
Attachment B: Mitigation Document
ORDINANCE NO. 5610
A temporary route (which is not the preferred option] to provide 5,000 gpm to the same site would
be to extend two parallel 12-inch water lines in NE 10th Street from the existing 12-inch line in
Sunset Boulevard NE, along with a looped water main around the west and north side of the
building, and a 12-inch line in Sunset Lane NE connecting back to the second new 12-inch main in
NE 10th Street. (Segment P2 on Figure 3.17-1]
Sunset Terrace Redevelopment
It is reasonable to assume that the fire flows required for the Sunset Terrace redevelopment would
exceed 2,500 gpm, mandating installation of a looped system. In addition, Sunset Terrace abuts NE
Sunset Boulevard, triggering the requirement to install hydrants every 400 feet along that arterial.
It may be possible to phase the Sunset Terrace redevelopment in a manner that would allow early
elements ofthe redevelopment to be constructed without looping the water mains (see Edmonds-
Glenwood Phase 1, above). In any case, all mains serving the redevelopment would be extended
from the 565 pressure zone.
Initially, a new water main would be installed in Sunset Lane NE from Harrington Avenue NE to
Glenwood Avenue NE (about 750 feet). This presumes that the new main in Harrington Avenue NE
discussed in the Mixed-Use Building section, above, has been installed. The existing water main in
Sunset Lane NE could be abandoned in place (Segment D on Figure 3.17-1).
Looping the system could be achieved by extending the main from the intersection of Sunset Lane
NE and Glenwood Avenue NE along the newly aligned NE 10th Street to Harrington Avenue NE
(about 250 feet) (Segment E on Figure 3.17-1). This presumes that the water main extension in NE
10th Street to serve RHA's Piha site has already be installed.
There are two ways to install the required fire hydrants along NE Sunset Boulevard. One option
would be to extend the 12-inch-diameter main in NE Sunset Boulevard from Harrington Avenue NE
along the Sunset Terrace frontage (about 800 feet). This would be the most expensive option.
Another option would be to extend fire hydrant leads southwesterly through the Sunset Terrace
project from Sunset Lane NE to NE Sunset Boulevard at the appropriate intervals (Segments F on
Figure 3.17-1). This would be the least expensive option for two reasons. First, the pipes would not
be installed in a street avoiding significant restoration costs. Second, the pipes could be smaller
because they would be single purpose and not part ofthe City's transmission/distribution system.
Edmonds-Glenwood Phase 2
Fire-flow requirements for the Edmonds-Glenwood Phase 2 project are expected to be about 4,000
gpm, triggering the requirement to loop the water system. There are two options to meet this
looping requirement: north or south.
The north option would involve extending the 12-inch-diameter main from Phase 1 westerly
through the site to Edmonds Avenue NE. From there, the main would be extended north in
Edmonds Avenue NE to NE 12th Street, then east in NE 12th Street to Harrington Avenue NE, a
distance of more than 1,500 feet (Segment G on Figure 3.17-1).
The south option would begin in the same manner by extending the Phase 1 main through the
project site. Looping would be achieved by installing two new mains. One would extend from
Sunset Lane NE north in Glenwood Avenue NE to the Phase 1 pipe. The other would extend
Planned Action Ordinance 64
Attachment B: Mitigation Document
ORDINANCE NO. 5610
northwesterly in easements adjacent to NE Sunset Boulevard and Edmonds Avenue NE from the
northern-most fire hydrant lead installed for the Sunset Terrace project through the Phase 2 site. (A
more expensive option would be to install this same section of pipe in the rights-of-way of NE Sunset
Boulevard and Edmonds Avenue NE.) These loops would also comprise more than 1,500 feet of new
pipe (Segment H on Figure 3.17-1).
Water Main Costs
The cost of installation for new water mains is driven by a number of factors. Water mains installed
in roads are more expensive than water mains installed within project or open space areas, because
of the cost savings of avoiding conflicting utilities and restoring the road surface.
New water main costs are also affected by whether they are stand-alone or part of a suite of
infrastructure improvements. If the project is only installing a new water main, then all of the
excavation, bedding, installation, and other costs are borne by that project. If the project involves
installation ofthe other underground utilities such as sewers or storm sewers, the costs common to
the project can be spread across each utility facility being installed.
The cost of water mains is also affected by the project sponsor. If the project is being constructed by
a private developer, new water mains are less expensive. If the project is sponsored by a
government agency, numerous statutes make new water main projects more expensive.
The City's recent experience with stand-alone water main projects in a major arterial indicate costs
per foot of about $200 to $250. Applying these costs to the water main improvement described
above would indicate costs in the range of $1 to 1.2 million. The improvements would be
implemented with City and developer funding.
Wastewater Collection
Overview
The sewers within the Potential Sunset Terrace Redevelopment Subarea are also identified for
replacement based on age and condition in the City's Long Range Wastewater Management Plan.
Based on the increased wastewater load within the Potential Sunset Terrace Redevelopment
Subarea, the local sewers may need to be replaced with upsized pipe to manage the increased
wastewater load from the subarea. A more detailed discussion of needed sewer system
improvements is provided below.
Detailed Discussion
Mitigation issues related to wastewater fall into three broad categories: upsizing, rehabilitation, and
relocation.
Wastewater flows (forecast for the Planned Action Study Area, including the Potential Sunset
Terrace Redevelopment Subarea) indicate that some existing sewer pipes must be replaced with
larger pipes. One of those pipes is in Harrington Avenue NE. This sewer pipe would be replaced by
the City as part of the overall Sunset Terrace redevelopment to accommodate forecast flows.
Planned Action Ordinance 65 Attachment B: Mitigation Document
ORDINANCE NO. 5610
Manholes along the Harrington alignment would be carefully designed and located to avoid
interference with the planned park.
The collection sewers in Sunset Lane NE are at or near the end of their design life. The condition of
these sewers would be assessed to determine if they can be rehabilitated in place or if new pipes
would need to be installed.
The redevelopment concept proposes narrowing and shifting the alignment of Sunset Lane NE. If
this action leaves the existing sewers too close to new structures, then the City would require that a
new sewer main be installed within the new right-of-way of Sunset Lane NE.
Planned Action Ordinance 66 Attachment B: Mitigation Document
ORDINANCE NO. 5610
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Figure 3.17-1
Fireflow Phasing—Potential Sunset Terrace Redevelopment Subarea
Sunset Area Community Planned Action Final NEPA/SEPA EIS
Planned Action Ordinance 67 Attachment B: Mitigation Document