HomeMy WebLinkAboutORD 5813 CITY OF RENTON, WASHINGTON
ORDINANCE NO. 5813
AN ORDINANCE OF THE CITY OF RENTON, WASHINGTON, AMENDING
ORDINANCE NOS. 5610 AND 5740, ADDING FIVE PARCELS AND
REDISTRIBUTING, BUT NOT INCREASING, THE TOTAL NUMBER OF HOUSING
UNITS IN THE SUNSET TERRACE REDEVELOPMENT AREA, AND REVISING A
PLANNED ACTION DESIGNATED FOR THE SUNSET AREA PURSUANT TO THE
STATE ENVIRONMENTAL POLICY ACT(SEPA).
THE CITY COUNCIL OF THE CITY OF RENTON, WASHINGTON, DOES ORDAIN AS
FOLLOWS:
SECTION I. Findin�s. 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 has
amended 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, as designated in Attachment A,
which will guide growth and revitalization of the area, including the Sunset Terrace public
housing redevelopment area identified in Attachment C;
D. The City has prepared an Environmental Impact Statement (EIS) for the Sunset
Area, supplemented by addenda, that addresses the probable significant environmental
impacts associated with the location, type, and amount of development anticipated in the
Planned Action area;
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ORDINANCE N0. 5813
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 the probable significant environmental impacts from development within
the Planned Action area;
F. Future development projects in and around the Planned Action Area will protect
the environment, benefit the public and enhance economic development;
G. The public has meaningfully participated in the proposed Planned Action, during
comment periods, community meetings, and hearings, during and after the preparation of the
EIS, and the City has modified the proposal or mitigation measures in response to some of the
suggestions;
H. The Sunset Area Planned Action is not an essential public facility as defined by
RCW 36.70A.200(1);
I. The Planned Action Area applies to a defined subarea of the City boundaries
illustrated in Attachment A;
J. Public services and facilities are adequate to serve the proposed Planned Action
area;
K. The City adopted a Planned Action Ordinance 5610 on June 13, 2011, and
subsequently replaced it with Ordinance 5740 on December 8, 2014 to reflect preparation of a
Master Plan for the Renton Sunset Terrace redevelopment area within the larger Planned
Action Area and to reflect integration of a Reevaluation Alternative in 2014;
L. A revised master plan for the Sunset Terrace redevelopment area was submitted
to the City on May 27, 2016, which amends the 2014 Reevaluation Alternative by shifting the
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ORDINANCE N0. 5813
location of planned dwellings and master plan territory to include five additional parcels, and
redistributing but not altering the total number of dwellings studied or boundaries of the
designated Planned Action Area in Attachment A;
M. A NEPA Reevaluation, dated June 2016, pursuant to the National Environmental
Policy Act (NEPA), as authorized by U.S. Department of Housing and Urban Development
regulations, and an EIS addendum pursuant to SEPA were prepared to consider the
environmental effects of the revised Sunset Terrace master plan;
N. The City held a community meeting consistent with RCW 43.21C.440 on June 6,
2016; and
0. The City Council held a public hearing on July 11, 2016 regarding new
amendments to the Planned Action applicable to the Sunset Area in order to integrate the
Reevaluation Alternative, outlined in the NEPA Reevaluation and SEPA Addendum.
SECTION II. Procedures and Criteria for Evaluatin� and Determinin� Proiects 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 NEPA reevaluation/SEPA addendum published on December 12, 2014, and the 2016 NEPA
reevaluation/SEPA addendum published on June 10, 2016. The Planned Action EIS shall consist
of the Draft EIS, Final EIS, and the 2016 NEPA reevaluation/SEPA addendum. The mitigation
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ORDINANCE N0. 5813
measures contained in Attachment B are based upon the findings of the above-mentioned
environmental documents and shall, along with adopted City regulations, provide the
framework for the City's imposition of 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 below 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 of the 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, Zoning Use Table — Uses Allowed in Zoning
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ORDINANCE N0. 5813
Designations, 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 (1)(a).
(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
Reevaluation Alternative
� Residential I 2,506 units � 2,339 units �
I Schools I 57,010 gross square feet � 57,010 gross square feet I
I Parks � 0.25 -3.2 acres � 3 acres I
I Office/Service � 776,805 gross square feet I 745,810 gross square feet �
I Retail � 476,299 gross square feet I 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) The Renton Sunset Area Master Site Plan is included in
Attachment C and is to be used as a conceptual guide to redevelopment in that portion of the
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ORDINANCE N0. 5813
Planned Action area, together with the land use studied in the NEPA reevaluation/SEPA
addendum published on June 10, 2016, and the use allowances of the Renton Municipal Code.
(e) 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, Planned actions—Project review. Further, if
proposed development would alter the assumptions and analysis in the Planned Action EIS,
further environmental review may be required.
(3) Transportation -Trip Ran�es and Thresholds. Inserted below are the new
PM Peak Hour Trips anticipated in the Planned Action area:
I Alternative/Period � PM Peak Hour Trips* I
I 2006 � 2,082 trips �
2030 Alternative 3/ Reevaluation 5,555 trips
Alternative
I 2030 Preferred Alt � 5,386 trips �
Net increase from 2006-> 2030 Alternative 3,473 trips
3 / Reevaluation Alternative
Net increase from 2006-> 2030 Preferred 3,304 trips
Alternative
*all PM 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) Chan�ed 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.
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ORDINANCE N0. 5813
E. Planned Action Review Criteria.
(1) The City's Environmental Review Committee may designate as "planned
actions", pursuant to RCW 43.21C.030, Guidelines for stare agencies, local governments --
Statements -- Reports -- Advice — Information, applications that meet all of the 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;
(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 probable significant adverse environmental
impacts have been identified in the Planned Action EIS;
(f) The proposal's probable significant adverse environmental
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
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ORDINANCE N0. 5813
(h) The proposal is not an essential public facility as defined by RCW
36.70A.200(1j.
(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, Guidelines for state agencies, local governments--Statements -- Reports --Advice–
Information, WAC 197-11-164, Planned actions—Definition and criteria, and this ordinance.
F. Effect of Planned Action.
(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 Planned Action EIS's environmental
analysis.
(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-
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ORDINANCE N0. 5813
080.G 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 4-8-080.G, Land Use Permit Procedures, and RMC 4-9 as modified by RCW
43.21C.440(3)(b). If notice, in addition to the requirements of RCW 43.21C.440(3)(b), 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 require a SEPA review
procedure consistent with the City's SEPA regulations and the requirements of state law. The
notice shall describe the elements of the 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. Monitorin� and Review.
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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
Appendix A review of Goals and Objectives and LEED-ND qualitative evaluation, or an
equivalent approach:
(1) At the time of the 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, for
the Sunset Community Planned Action Area.
D. The City shall conduct a Greenroads evaluation or its equivalent at the time the
NE Sunset Boulevard design is at the thirty percent (30%) design level and at the sixty percent
(60%) design level.
E. The City shall review the Potential Sunset Terrace Redevelopment Subarea at the
time of the five (5)-year review in subsection III.B in relation to the following evaluation criteria:
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(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 of the 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
as provided in Table 7 of the Planned Action ordinance Attachment B.
SECTION IV. Conflict. In the event of a conflict between this ordinance or any
imposed mitigation measure, and any City ordinance or regulation, the provisions of this
ordinance shall control except that the provision of any Uniform Code shall supersede.
SECTION V. Severabilitv. 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 (5j
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ORDINANCE N0. 5813
days after its passage, approval and after publication of a summary of this ordinance in the
City's official newspaper. The summary shall consist of this ordnance's title.
PASSED BY THE CITY COUNGL this 8th day of August , 2016.
�
/�..t,1 ' /� ;
Jaso �A. Seth,�{�y Clerk
APPROVED BY THE MAYOR this 8th day of August , 2016.
�
/
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Denis Law, Mayor
Approved as to form:
��'"'t'�—_ ,`1���``',�:�:,,:""s,;;��;�
�� f�r�
<`:�'`t�;,r� �•�'"�or
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Lawrence J. Warren, City Attorney �� y�� '`�v�,
�=� ���.;°p u� �
Date of Publication: 8/12/2016 (summary) �=, � ,,, � � �^�
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c,�;. �'� ..
:� . .
ORD.1926:6/13/16:scr ��`���,."'
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ORDINANCE N0. 5813
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'�� Attachment A
Planned Action Study Area
��,TEe�,AnorfA Sunset Area Community Planned Action Final NEPA/SEPA EIS
ORDINANCE N0. 5813
ATTACHMENT B
Attachment B: Sunset Area Community Planned Action
EIS Mitigation Measures
Table of Contents
Introductionand Purpose ......................................................................................................................3
SEPATerms.............................................................................................................................................3
GeneralInterpretation...........................................................................................................................4
Summary of Proposal,Alternatives, and Land Capacity........................................................................4
Proposaland Alternatives................................................................................................................4
LandCapacity...................................................................................................................................5
Location..................................................................................................................................................6
MitigationDocument.............................................................................................................................9
1. Earth..................................................................................................................................10
2. AirQuality.........................................................................................................................12
3. Water Resources...............................................................................................................18
4. Plants and Animals............................................................................................................20
5. Energy...............................................................................................................................22
6. Noise.................................................................................................................................25
7. Environmental Health.......................................................................................................27
8. Land Use............................................................................................................................30
9. Socioeconomics................................................................................................................32
10. Housing.............................................................................................................................34
11. Environmentallustice.......................................................................................................36
12. Aesthetics..........................................................................................................................38
13. Historic/Cultural................................................................................................................41
14. Transportation..................................................................................................................44
15. Parks and Recreation........................................................................................................48
16. Public Services...................................................................................................................51
17. Utilities..............................................................................................................................56
AdvisoryNotes .....................................................................................................................................61
Attachment 1: Draft EIS, Cultural Resources Appendix J, Plan and Procedures for Dealing
with the Unanticipated Discovery........................................................................................................62
Attachment 2: Figure 3.17-1 Potential Subarea Utility Improvements and Phasing........................64
Wate r....................................................................................................................................................65
Overview........................................................................................................................................65
Edmonds-Glenwood Phase 1.........................................................................................................65
NewLibrary....................................................................................................................................65
New Mixed-Use Building Adjacent to New Library..............................................................................66
RHA's Piha Site...............................................................................................................................66
Pldnned ACtiOn OfdindnCe 1 Attachment B:Mitigation Document
ORDINANCE N0. 5813
ATTACHMENT B
SunsetTerrace Redevelopment.....................................................................................................67
Edmonds-Glenwood Phase 2.........................................................................................................67
WaterMain Costs..........................................................................................................................68
WastewaterCollection.........................................................................................................................68
Overview........................................................................................................................................68
DetailedDiscussion........................................................................................................................68
List of Tables
Table 1. Summary of Land Capacity-Planned Action Alternatives...................................................6
Table2. Earth Significant Impacts....................................................................................................................10
Table 3. Earth Mitigation Measures.................................................................................................................11
Table 4. Air Quality Significant Impacts.........................................................................................................12
Table 5. Air Quality Mitigation Measures......................................................................................................14
Table 6. Potential Greenhouse Gas Reduction Measures........................................................................16
Table 7. Water Resources Significant Impacts............................................................................................18
Table 8. Plants and Animals Significant Impacts........................................................................................20
Table9. Energy Significant Impacts................................................................................................................22
Table10. Energy Mitigation Measures..............................................................................................................24
Table 11. Noise Significant Impacts...................................................................................................................25
Table 12. Noise Mitigation Measures.................................................................................................................26
Table 13. Environmental Health Impacts........................................................................................................27
Table 14. Environmental Health Mitigation Measures...............................................................................28
Table15. Land Use Impacts...................................................................................................................................30
Table 16. Land Use Mitigation Measures.........................................................................................................31
Table 17. Socioeconomics Impacts.....................................................................................................................32
Table 18. Socioeconomics Mitigation Measures...........................................................................................34
Table19. Housing Impacts.....................................................................................................................................34
Table 20. Housing Mitigation Measures...........................................................................................................36
Table 21. Environmental Justice Impacts........................................................................................................36
Table 22. Environmental Justice Mitigation Measures...............................................................................38
Table23. Aesthetic Impacts...................................................................................................................................38
Table 24. Aesthetic Mitigation Measures.........................................................................................................41
Table 25. Historic/Cultural Impacts..................................................................................................................41
Table 26. Historic/Cultural Mitigation Measures.........................................................................................42
Table27. Transportation Impacts......................................................................................................................44
Table 28. Transportation Mitigation Measures.............................................................................................46
Table 29. Parks and Recreation Impacts..........................................................................................................48
Table 30. Parks and Recreation Mitigation Measures................................................................................49
Table31. Public Services Impacts.......................................................................................................................51
Table 32. Public Services Mitigation Measures.............................................................................................54
Table33. Utilities Impacts......................................................................................................................................56
Table 34. Utilities Mitigation Measures............................................................................................................59
Planned Action Ordinance z Attachment B:nnitigation Document
ORDINANCE N0. 5813
ATTACHMENT B
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/mpactStatement(DEIS)for the Ciry of Renton SunsetArea Community Planned
Action on December 17,2010 and the Final EnvironmentallmpactStatement(FEIS)for the Ciry of
Renton SunsetArea 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 Sunset Planned Action area,
together with a number of possible measures to mitigate those significant adverse impacts.A NEPA
Reevaluation/SEPA Addendum was prepared in September 2014 and issued in December 2014 to
evaluate any potential changes in EIS conclusions associated with modifications to the conceptual
master plan for Sunset Terrace,which comprises a portion of the Planned Action area. Similarly,a
NEPA Reevaluation/SEPA Addendum was prepared in May 2016 and issued in June 2016,based on
a revised master plan for Sunset Terrace and associated housing replacement sites. No new or
significantly different impacts were identified from this reevaluation.
The purpose of this Mitigation Document is to establish specific mitigation measures,based upon
significant adverse impacts identified in the EIS and minor changes identified in the
Reevaluation/Addendum. 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 Exhibit A). This
document will be used primarily to facilitate review of future projects proposed as planned actions.
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)
Pldnned ACtiOn OfdinanC2 3 Attachment B:Mitigation Document
ORDINANCE N0. 5813
ATTACHMENT B
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 of the applicant or designee to fund and/or perform.
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 wou(d
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 of the Draft EIS to determine
its Preferred Alternative.The Preferred Alternative is evaluated in the Final EIS.A Reevaluation
Alternative was developed through a NEPA Reevaluation and SEPA Addendum process in 2014.
Similarly,a 2016 Reevaluation Alternative was evaluated through a NEPA Reevaluation and SEPA
Addendum in 2016.All six 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 pub►ic 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
Planned Action Ordinance 4 Attachment B:Mitigation Document
ORDINANCE N0. 5813
ATTACHMENT B
number dwellings developed in a mixed-income,mixed-use sryle,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.
2014 Reevaluation Alternative.This alternative proposes neighborhood growth the same as
Alternative 3,with slightly more units(approximately 90) redirected to the Sunset Terrace subarea.
Sunset Terrace would have a mixed-income,mixed-use development similar to Alternative 3 and the
Preferred Alternative,with a larger park and with dwellings focused more along SR 900.
Greenstreets,library uses,and other investments would be similar to those proposed for Alternative
3 and the Preferred Alternative.
2016 Reevaluation Alternative.An amended master plan was developed in 2016 addressing RHA
revised proposals to develop replacement housing for the Sunset Terrace redevelopment on five
parcels located outside but abutting the 2014 Master Plan area-three parcels would be added to
the Sunset Court Park site and developed with 50 apartments and townhomes,and two parcels
would be added to properties north of the"loop road"in the Harrington Park development
providing 19 townhomes.Within the 2014 Master Plan boundaries there would also be unit
transfers from one site to another.With the 2016 revisions to the Master Plan and addition of the
abutting parcels,there would be no net increase in the total number of housing units in the Master
Plan area or in the Sunset Area neighborhood. However,consistent with the flexibility allowed by
the adopted Master Plan,some units would be redistributed.
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.
• 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 Reevaluation Alternatives 2014 and 2016 assume the same Planned Action Study Area
growth levels as Alternative 3,with slight differences in distribution towards the Sunset Terrace
subarea.
The latter three alternatives-Alternative 3,the Preferred Alternative,and the Reevaluation
Alternatives in 2014 and 2016 which are similar-represent the higher growth levels studied in the
EIS and differ,when compared at the Planned Action area as a whole,by about 7%;these three
Planned Action Ordinance 5 Attachment B:Mitigation Document
ORDINANCE N0. 5813
ATTACHMENT B
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 of the alternatives can be found in Final EIS
Chapter 2 and the Reevaluation subsections below(as well as Attachment I of the NEPA Record of
Decision).
Table 1. Summary of Land Capacity— Planned Action Alternatives
INet New Growth
Alternative 3/Reevaluation
Dwelling Units/Jobs Alternative 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
Reevaluation Alternative: 2014
In November 2014,the City conducted a NEPA Reevaluation pursuant to Section 58.47 of US
Department of Housing and Urban Development's(HUD's) NEPA regulations.SEPA also provides a
process using an Addendum to the prior FEIS where information or analysis does not substantially
change prior conclusions about impacts(WAC 197-11-706).
Based on updated master planning in 2014, some changes in units were considered(�90 more
units than Alternative 3).See Tables 2 and 3.
Table 2. Reevaluation-Total Units Under Review
Total Units
Reviewed in
Site Name EIS Study Area Status Acres Reevaluation
A Glennwood Townhomes Sunset Terrace Redevelopment Constructed RHA 0.65 8
B Kirkland Avenue Townhomes Swap Site, North Study Area Under Construction RHA 0.77 18
C Edmonds Apartments Sunset Terrace Redevelopment Future Development RHA 1.70 112
D Sunset Terrace Apartments Sunset Terrace Redevelopment Part of Master Site Plan 0.51 54
E Sunset Park West Townhomes Sunset Terrace Redevelopment Part of Master Site Plan 0.55 20
F Sunset Court Townhomes Swap Site,Central Study Area Future Development RHA 0.88 15
6 Sunset Park East(Piha)Townhomes&Apts Sunset Terrace Redevelopment Part of Master Site Plan 1.09 57
H Sunset Terrace Dev.Building A Sunset Terrace Redevelopment Part of Master Site Plan 0.99 117
I Sunset Terrace Oev.Building B Sunset Terrace Redevelopment Part of Master Site Plan 1.18 196
1 Sunset Terrace Dev.Suilding C Sunset Terrace Redevetopment Part of Master Site Ptan 0.74 110
K Renton Highlands Library Sunset Terrace Redevelopment Part of Master Site Plan See H
L Regional Stormwater Facility Sunset Terrace Redevelopment Part of Master Site Plan See M
M Sunset Fark Sunset Terrace Redevelopment Part of Master Site Plan 3.2
N Sunset Lane loop tmprovements Sunset Terrace Redevelopment Part of Master Site Plan 1.41
0 NE 10th Street Extension Improvements Sunset Terrace Redevelopment Part of Master Site Plan 0.20
X _Library Site(2013) Swap Site,Central Study Area Future Development 1.41 25
_ ..._. _ _._.. _. _.. ............ . .._....._._.... _......._.. . __......_. ........_._...... _..... _.. ..
Totals 15.28 722
Note:Units may be redistributed among sites provided the Reevaluation conclusions are maintained.
Total Units:Difference Master Plan Proposals with EIS Preferred Alternative +209
Total Units:Difference with EIS Alternative 3 +90
Sources:Veer,Schemata,Colpitts,City of Renton,Renton Housing Authority,Mlthun,BERK 2014
Planned Action Ordinance 6 Attachment B:Mitigation Document
ORDINANCE N0. 5813
ATTACHMENT B
Notes: Shaded sites=Master Plan Sites.
Table 3. Comparison of Net Growth in Sunset Terrace and Neighborhood Alternatives
� Net New Growth
I Alternative 3 I Preferred Alternative I Reevaluation Alternative
Dwelling Neighbor- St�nset Neighbor- Sunset Neighbor- Sunset
Units/Jobs hood Terrace � hood 1'errace � hood - Tei�i�ace
Dwelling units 2,506 �79 2,339 � '2b6a . 2,506 '554�
Population 5,789 ' _I,106 5,403 - : t�14� : 5,789 2,279 :
EmploymentSF 1,310,113 <.:�9,p(t0" . 1,247,444- 38�1Qf} 1,310,113 19,50F}-_
1,259,944 �4,{�pQ
Jobs 3,330 1$Z 3,154- - llfi - " 3,330 6p-�.$2
3,192
a Does not include approximately 90-100 units to be developed on land swap/housing replacement sites.
b Similar to the FEIS,the Sunset Terrace study area Master Plan sites D,E,G to J and L to 0,plus sites A
and C.
Source: FEIS 2011,BERK 2014
The City also proposed a larger park than was considered under either of the selected alternatives,
and accordingly some buildings increased in height or numbers of units.Some streets were
proposed for reclassification to achieve the circulation proposals and"green streets"in the Final EIS.
Setbacks of buildings from the future SR 900 improvement boundaries are less than for the
Preferred Alternative.
As the analysis in the Reevaluation shows,no substantive changes in conclusions or required
mitigation are needed as a result of the revised alternative,termed the"2014 Reevaluation
Alternative."
Reevaluation Alternative: 2016
The proposed developments would meet City standards for density,height,setbacks,transportation
levels of service,connection to utilities,and would be subject to City parking codes,including
procedures for modifying applicable standards.The new developments would be incorporated into
an amended Master Plan pursuant to RMC Title IV.Also,the SEPA Planned Action Ordinance could
be amended to include the revised Master Plan concept.
In total,722 dwelling units are being proposed in the study area,which is to the same as the number
of units considered in the 2014 Reevaluation.See Table 4.
Table 4.Summary of Total Units Proposed for Study in Reevaluation
land Area Total �and Area Total Commerci
Location (acres): Dwelling (acres : Dwelling al Square
2014 Units: 2016) Units: Feet:2014
2014 2016 and 2016
Master Plan Sites I
Sunset Terrace and Replacement Sites:C through 1 I 7.63 I 671 9.23 671 4,500-
39,500
Pldnned ACtiOn OrdinanCE � Attachment B:Mitigation Document
ORDINANCE N0. 5813
ATTACHMENT B
land Area Total �and Area Total Commerci
Dwelling Dwelling al5quare
Location (acres): (acres :
2014 Units: 2016) Units: Feet:2014
2014 2016 and 2016
Library(Site K) I 15,000
Sunset Park and Regional Stormwater Facility(Sites L I 3 2� I 3.20
and M) I I
NE lOth and Sunset Lane Loop(Site N and 0) I 1.61 1.61 I
Total Master Plan Sites I 12.44 � 671 � 14.04 I 671 I 19,500-
54,500
Other Sunset Terrace Study Area Sites:Glenwood
I 0.65 8 I 0.65 8 I
(Site A)-Developed
Swap Sites:Kirkland Avenue(B)-Developed,Library I 2.18 43 I 2.18 43 I
Site for Future Surplus(X)
Other Employment potential in Sunset Terrace and I I 4,500
Replacement Sites I
Total All Sites � 15.28 � 7Z2 I 16.88 f 722 I 19,500-
� 59,000
Source:King County Assessor;ICF Jones&Stokes et al.2011;BERK Consulting 2016
A comparison of the Reevaluation Alternatives and the Final EIS Alternatives is provided in Table 5.
The mitigation documents contained in the ROD and Planned Action Ordinance were based on the
range of growth of the two Selected Sunset Area Alternatives. The mitigation measures continue to
apply to the Reevaluation Alternatives in 2014 and 2016.
Table 5.Comparison of Net Growth in Sunset Terrace and Neighborhood Alternatives
Net New Growth
Final EIS Alternative I Final EIS Preferred Reevaluation I Reevaluation
3 Alternative Alternative: 2014 Alternative: 2016
Dwelling Neighbo a�tinset � Neighbo $uttset � Neighbor- `Stutset � Neighbor- Stttiset
Units/Jobs r-hood Teri`aCe. r-hood fieri'ace hood :TerraCe hood TErrace
Dwelling units 2,506 •:.�?9�;=.. 2,339 266'.: 2,506 ' :554�: 2,506 519�
Population 5,789 -�,5{�6 5,403 bl+� 5,789 :::�.,27�. 5,789 1,�93
Employment 1,310,11 59,t�Qp_ 1,247,44 3$,1p(} 1,310,113 1�},SUO- 1,310,113 29,5t�0-
SF 3 4- 5.9,t}QCI 59,{Wk0
1,259,94 -
4
Jobs 3,330 i �-.1$2' 3,154- 217 3,330 6i?-182_ 3,330 '{s{1-�$2 . "
3,192 , ,
a Does not include approximately 90-100 units to be developed on land swap/housing replacement sites.
b Similar to the Final EIS,includes the Potential Sunset Terrace Redevelopment subarea and housing
replacement sites abutting the subarea and included in the Master Plan.
�Does not include several housing replacement sites in the neighborhood.
Source:Final EIS 2011,BERK 2014
Per the approved 2014 Master Plan,dwelling units may be redistributed among sites provided the
Reevaluation conclusions are maintained.
Planned Action Ordinance 8 Attachment B:Mit�gation Document
ORDINANCE N0. 5813
ATTACHMENT B
While the net units in Sunset Terrace are lower in 2016 than in 2014 per Table 5,this is a reflection
of the boundaries of the 2011 Potential Sunset Terrace Redevelopment Area that did not include
several replacement housing sites which were part of the neighborhood growth studied in the EIS.
Some of the housing replacement sites are part of the am,ended Master Plan for Sunset Terrace.
Some potential dwelling units are proposed to be transferred among three individual Master Plan
sites.However,the total number of units that could be developed in the Master Plan area would
remain the same.Similarly,the overall neighborhood development and growth would be the same
as in 2011 and 2014.
See the revised master plan reflecting the 2016 Reevaluation Alternative in the 2016 Reevaluation
and Addendum.
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 Exhibit 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 Exhibit A of the Planned Action Ordinance.
Mitigation Document
Based on the EIS and Reevaluation/Addendum(2014 and 2016)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-
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."
Planned Action Ordinance 9 Attachment B:Mitigation Document
ORDINANCE N0. 5813
ATTACHMENT B
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
Potential Sunset Terrace
Type of Impact Planned Action Study Area Redevelopment Subarea
Construction Erosion could increase as a result of soil Same as Planned Action Study Area
disturbance;however,much of the
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 Similar to Planned Action Study Area.
export of earth materials;however, The underlying glacial outwash soils
with minimal planning and protection, have the highest potential for reuse
the outwash soils in most of the study within the Planned Action Study Area
area could be reused as backfill, and consequently the subarea.
minimizing import and export.
There is an increased risk of landsliding There are no mapped geologic hazards,
due to soil disturbance,changing and thus a low potential for impacts.
drainage,or temporarily
oversteepening slopes.However,a
relatively small proportion of the 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.
/ndirect The major steep slope,erosion,and There are no mapped geologic hazards,
Planned A[tion OfdinanCe 10 Attachment B:Mitigation Document
ORDINANCE N0. 5813
ATTACHMENT B
Potential Sunset Terrace
Type of Impact Planned Action Study Area Redevelopment Subarea
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
increase the risk of erosion and
landsliding downslope(outside)ofthe
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 of the 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 Potential Sunset Terrace Redevelopment Subarea
The following mitigation measures shall apply to Mitigation measures shall be the same as the
development throughout the Planned Action Planned Action Study Area,except that there are
Study Area. no geologic hazard areas to avoid.
. Apply erosion-control best management
practices(BMPs),as described in Appendix
D of the Ciry of Renton Amendments to the
King CountySurface WaterDesign Manuall.
. 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.
1 City of Renton.2010.City ofRenton Amendments to the King CountySurface Water Design Manual. February.
Appendix D,Erosion and Sedimentation Control Standards.
Planned ACtion OrdinanCe 11 Attachment B:Mitigation Dotument
ORDINANCE N0. 5813
ATTACHMENT B
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 of the
activity.
Some construction activities could Same as Planned Action Study
cause odors detectible to some Area
people in the vicinity of the activity,
especially during paving operations
using tar and asphalt.Such odors
would be short-term and localized.
Construction equipment and Same as Planned Action Study
material hauling could temporarily Area
increase traffic flow on city streets
adjacent to a construction area.If
construction delays traffic enough
to significantty reduce travel speeds
in the area,general traffic-related
emissions would increase.
Operations
Emissions from Stationary equipment,mechanical Same as Planned Action Study
Commerciat Operations equipment,and trucks at loading Area
Pldnn2d ACtion OrdinanCe 12 Attachment B:Mitigation Document
ORDINANCE N0. 5813
ATTACHMENT B
Potential Sunset Terrace
Type of Impact Planned Action Study Area Redevelopment Subarea
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.
Emissions From Vehicle Tailpipe emissions from vehicles The forecasted VMT from the
Travel would be the major source of air subarea is only a small fraction of
pollutant emissions associated with the Puget Sound regional totals.
growth.The net increases in vehicle Future emissions from increased
miles travelled(VMT)forecast as a population and motor vehicles in
result of Planned Action the subarea would not cause
alternatives are inconsequentially significant regional air quality
small compared to the Puget Sound impacts.
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.
Air Quality Attainment Land use density and population Same as Planned Action Study
Status would increase in the Planned Area.
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.
Greenhouse Gas Emissions: Planned Action alternatives are Planned Action Alternatives
Study Area and Subarea estimated to result in this would result in an estimated
alternative would result in an 3,760 to 6,612 metric tons/year
estimated 43,050 to 45,766 metric of GHG emissions.
tons/year of greenhouse gas(GHG)
emissions for the Planned Action
Study Area.
Outdoor Air Toxics The Planned Action Study Area is in Impacts on outdoor air toxics
a mixed-use residential and would be similar to those
commercial zone that does not described for the Planned Action
include unusual sources of toxic air Study Area.
pollutants.The major arteriat street
Planned ACtiOn OfdinanCe 13 Attachment B:Mitigation Document
ORDINANCE N0. 5813
ATTACHMENT B
Potential Sunset Terrace
Type of Impact Planned Action Study Area Redevelopment Subarea
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.
Indoor Air Toxics See Potential Sunset Terrace RHA development would be
Redevelopment Subarea 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
achieved by simply complying
with building codes.
lndirectand Cumulative
Greenhouse Gas Emissions: With the highest level of transit- With the highest level of transit-
Subarea,Study Area,and oriented development in the study oriented development in the
Region area of the studied alternatives, subarea of the alternatives
Planned Action Alternatives would studied,Planned Action
provide the greatest regional GHG Alternatives would provide the
emission reductions,a net greatest reduction in regional
reduction of 3,907-4,164 metric GHG emissions,a net reduction of
tons/year,compared with the No 150-467 metric tons/year,
Action Alternative studied in the compared with the No Action
EIS. 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 Potential Sunset Terrace Redevelopment Subarea
Planned Action Ordinance 14 Attachment B:Mitigation Document
ORDINANCE N0. 5813
ATTACHMENT B
Planned Action Study Area Potential Sunset Terrace Redevelopment Subarea
Construction Emission Control In addition to the mitigation measures for air
The City shall require all construction contractors quality described under the Planned Action Study
to implement air quality control plans for Area,the following mitigation measures apply:
construction activities in the study area.The air . Should the phases of the Potential Sunset
quality control plans shall include BMPs to Terrace Redevelopment Subarea occur
control fugitive dust and odors emitted by diesel concurrently rather than in a phased and
construction equipment. sequential manner,the City and RHA wiil
The following BMPs shall be used to control consider adding the Northeast Diesel
fugitive dust. Collaborative Diesel Emission Controls in
Construction Projects-Model Contract
. Use water sprays or other non-toxic dust Specifications or an equivalent approachz as
control methods on unpaved roadways. additional mitigation measures.
. Minimize vehicle speed while traveling on . The City and RHA and other public or private
unpaved surfaces. applicants within the subarea should explore
. Prevent trackout of mud onto public streets. measures to improve indoor air quality beyond
what is normally achieved by simply complying
. Cover soil piles when practical. with building codes.For example,grant
. Minimize work during periods of high winds Programs such as the Breath Easy Homes
when practical. program could provide funding to foster
construction methods that reduce dust,mold,
The following mitigation measures shall be used and air toxics concentrations in the homes,such
to minimize air quality and odor issues caused by as the following:
tailpipe emissions. o use of low-VOC [volatile organic compounds]
. Maintain the engines of construction building materials and coatings,
equipment according to manufacturers' o enhanced building ventilation and room air
specifications. filtration,and
. Minimize idling of equipment while the o installation of dust-free floor materials and
equipment is not in use. low-pile carpeting to reduce dust buildup.
Where feasible,Applicants shall schedule haul • Planned Action applicants for residential
traffic during off-peak times(e.g.,between 9:00 developments shall provide information
a.m.and 4:00 p.m.)to have the least effect on regarding the feasibility and appticability of
traffic and to minimize indirect increases in traffic �ndoor air quality measures.The City may
related emissions. This shall be determined as condition Planned Action applications to
part of traffic control plans required in Section 14 �ncorporate feasible indoor air quality
of this mitigation document. measures.
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.
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
z 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 15 Attathment B:Mitiga[ion Dotument
ORDINANCE N0. 5813
ATTACHMENT B
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,tand 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.
Apply Leadership in Energy and Environmental Reduces on-site fuel combustion emissions and
Design(LEED)standards(or equivalent)for design off-site/indirect purchased electricity,water
and operations. use,waste disposal.
Purchase Energy Star equipment and appliances for Reduces on-site fuel combustion emissions and
public agency use. purchased electricity consumption.
Incorporate on-site renewable energy production, Reduces on-site fuel combustion emissions and
including installation of photovoltaic cells or other purchased electricity consumption.
solar options.
Design street lights to use energy-efficient bulbs Reduces purchased electricity.
and fixtures.
Construct"green roofs"and use high-albedo Reduces on-site fuel combustion emissions and
roofing materials. purchased electricity consumption.
Install high-efficiency heating,ventilation,and air- Minimizes fuel combustion and purchased
conditioning(HVAC)systems. electricity consumption.
Eliminate or reduce use of refrigerants in HVAC Reduces fugitive emissions.Compare
systems. refrigerant usage before/after to determine
GHG reduction.
Maximize interior day tighting through floor plates, Increases natural/day lighting initiatives and
increased building perimeter and use of skylights, reduces purchased electrical energy
celestories,and light wells. consumption.
Incorporate energy efficiency technology such as Reduces fuel combustion and purchased
super insulation motion sensors for lighting and electricity consumption.
climate-contro(-efficient,directed exterior lighting.
Use water-conserving fixtures that surpass building Reduces water consumption.
code requirements.
Reuse gray water and/or collect and reuse Reduces water consumption with its indirect
rainwater. upstream electricity requirements.
Planned Action Ordinance 16 Attachment B:Mitigation Document
ORDINANCE N0. 5813
ATTACHMENT B
Reduction Measures Comments
Use recycted building materials and products. Reduces extraction of purchased materials,
possibly reduces transportation of materials,
encourages recycling and reduction of so(id
waste disposal.
Use building materials that are extracted and/or Reduces transportation of purchased materials.
manufactured within the region.
Use rapidly renewable building materials. Reduces emissions from extraction of
purchased materials.
Conduct third-party building commissioning to Reduces fuel combustion and purchased
ensure energy performance. electricity consumption.
Track energy performance of building and develop Reduces fuel combustion and purchased
strategy to maintain efficiency. electricity consumption.
Transportation
Size parking capacity to not exceed local parking Reduced parking discourages auto-dependent
requirements and,where possible,seek reductions travel,encouraging alternative modes such as
in parking supply through special permits or transit,walking,and biking.Reduces direct and
waivers. indirect VMT.
Develop and implement a marketing/information Reduces direct and indirect VMT.
program that includes posting and distribution of
ridesharing/transit information.
Subsidize transit passes.Reduce employee trips Reduces employee VMT.
during peak periods through alternative work
schedules,telecommuting,and/or flex time.
Provide a guaranteed-ride-home program.
Provide bicycle storage and showers/changing Reduces employee VMT.
rooms.
Use traffic signalization and coordination to Reduces transportation emissions and VMT.
improve traffic flow and support pedestrian and
bicycle safety.
Apply advanced technology systems and Reduces emissions from transportation by
management strategies to improve operational minimizing idling and maximizing
efficiency of local streets. transportation routes/systems for fuel
efficiency.
Develop shuttle systems around business district Reduces idling fuel emissions and direct and
parking ga►-ages to reduce congestion and create indirect VMT.
shorter commutes.
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
Planned ACtiOn OrdinanCe 1� Attachment B:Mitigation Document
ORDINANCE N�. 5813
ATFACHMENT B
3. Water Resources
Significant lmpacts
Table 7. Water Resaurces 5ignificant Impacts
Potential Sunset Terrace
Type af Impact Planned Action Study Area Redevetopment Subarea
Construction Canstruction impacts on water Same as Planned Action Study Area
resources wouid be addressed
through compliance with Core
Requirement#5 for Erosion
and Sediment Control in the
Renton Stormwater Manual and
compliance with Ecalogy's
NPDES Canstruction
Stormwater General Permit,if
the project results in 1 acre or
more of land-disturbing
activity.Also see Section 1,
Earth,above.
Operatians
Water Qualiry and Land Implementation of the green All untreated pollution-generating
Cover connections and the NE Sunset imperviaus surfaces within the
Boulevard reconstruction subarea wfluld be eliminated,
project is estimated to result in resulting in a reduction of 1.83 acres
a net reduction of nf untreated potlution-generating
appraximatety 14.7-15.7 acres surface from the Jahns Creek Basin.
of untreated poilution- The estimated change in effective
generating impervious area and impervious area would result in a
approximately 3.1-6.6 acres of decrease of appraximately 0.51 acre
effective impervious area. (11%)to 1.07 acres(23%)compared
Exclusive of the Sunset Terrace to existing conditions.
Redevelopment Subarea the net The Reevatuation Alternative is in the
change in pallutant generating range of the priar analysis of the
surfaces is approximately 40-42 Preferred Alternative and Alternative
acres reductian.Exclusive of the 3 as documented in the
Sunset Terrace Redevelopment Reevaluation/Addendum.
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 cqnditions.
Considering the reduction in
the Potentia]Sunset Terrace
Redevelopment Subarea as weit
as the overall Planned Action
Study Area,the net change in
effective imperviaus area would
be smaller at 0.75-3.17.
lndirect and Cumulative The operations analysis above Same as the Planned Action Study
presents cumulative impacts in area. 3n particular,the City proposes
terms of total impervious to construct a regionai stormwater
Ptanned Action Qrdinance 18 Attachment B:Mitigation Document
ORDINANCE N0. 5813
ATTACHMENT B
Potential Sunset Terrace
Type of Impact Planned Action Study Area Redevelopment Subarea
surfaces and potential water facility that would be designed to
quantity and quality impacts,as maintain active and open recreation
well as indirect impacts on space allowing water to be treated
receiving water bodies outside within a series of distributed yet
of the study area. The Planned integrated small rain gardens along
Action Alternatives would the edge of the proposed Sunset
implement a drainage master Terrace Park and connecting the
plan and mitigation would be subsurface to an underground
provided in advance through infiltration bed beneath the open
the self-mitigating public space. This will mitigate impacts in
stormwater infrastructure the subarea as well as portions of the
features including a larger Planned Action Study Area.
combination of green
connections,regional
stormwater flow control,and
possible public-private
partnership opportunities for
retrofits.
Unavoidable Adverse Impacts
None of the 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(e.g.,green connections,drainage master plan,etc.) of the Planned
Action alternatives and through implementation of the 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 of the 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
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.
Planned Action Ordinance 19 Attachment B:Mitigation Document
ORDINANCE NtJ. 5813
ATTACHMENT B
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 ta
compensate for the off-site mitigation provided by the public infrastructure investment,
• The Preferred Alternative mitigation would be similar ta Alternative 3.Harringtan Avenue NE,
including partions 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 runaff,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 of the 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 irnpravements to provide
advance mitigation for future increases in impervious area that could result from
redevelopment.I,ocations of the regionai 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 of the existing baseball Jsoftball field),A drainage master plan will be developed far the
Preferred Alternative.
• The Reevaluation Alternative is similar to and in the range of impervious results for the
Preferred Alternative and Alternative 3 and will be subject to the Sunset Area Surface Water
Master Plan,and associated strect frontage improvements,and will be consistent with the City
stormwater regulations.
Ptanned Actions shall implement the City's adopted Sunset Area Surface Water Master Plan,and
assaciated street frontage improvements,and be consistent with the City stormwater regulations in
effect at the time of application.Planned Actian applicants shall also demonstrate compliance with
RMC 4-1-184 Charges far Equitable Share of Public Works Facilities.
Nexus
Ciry of Renton Comprehensive Plan
RMC 4-3-05Q 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. Piants and Animals
Significant Impacts
Tabie 8. Piants and Animais Significant impacts
Potential Sunset Terrace
Type of Impact Planned Action Study Area Redevelopment Subarea
Construction Individual redevelopment Same as Planned Action Study Area
Pianned Action Ordinance 20 Attachmenk B Mitigation Documeni
ORQIPUANCE N0. 5813
ATTACHMENT B
Potential Sunset Terrace
Type of Impact Planned Action Study Area Redevelopment Subarea
projects would result in short-
term loss of vegetation caver,
along with noise and activity
levels that would result in little
ar no use of the constructian
areas by wildlife during the
period af construction.
Redevetopment 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
starmwater runoff.
Q�erations Itedeveloprnent 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
Actian 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
piant diversity and quality of
the remaining habitat.
Green connections and urban
forestry plans affset to some
degree by greater
redevelapment,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.
Largeiy due ta the absence of
irnpacts on special-status
species,effects on wildlife
would be less than significant.
/ndirect 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 ta result in
effects such as increased
wildlife martality due to road
Pldnned ACtion OrdinanGB 21 Attachment B:Mit3gation Document
ORDINANCE NC}. 5$13
ATfACNMENT B
Potential Sunset Terrace
Type of Impact Planned Action Study Area Redevelopment Subarea
kill and predation by pets,and
reduced wildlife diversity due ta
increases in opportunistic
species such as starlings,crows,
and rats.These indirect impacts
can be expected to result in
reduced numbers,vigor,and
diversity of plant and wildli�e
species.
The stormwater commitments
incarporated in Planned Action
Alternatives would be sufficient
ta avoid substantial impacts on
aquatic habitats and fish.
Cumulative No impact No impact
Unavoidable Adverse Impacts
No significant unavoidable adverse impacts would occur for plants and animals under any
alternative.
Mitigation Measures
With implementation of propased stormwater features or standards,no mitigatian is required.
Nexus
City of Renton Comprehensive Plan
RMC 4-6-030 Drainage(Surface Water) Standards
RMC 4-3-050 Critical Areas Regulations
RMC 4-4-030 Develapment Guidelines and Regulations-General
RMC 4-4-130 Tree Retention and Land Clearing Regulations
5. Energy
Significant Impacts
Table 9. Energy Significant Impacts
Potential Sunset Terrace
Type of Impact Planned Action Study Area Redevelopment Subarea
Construction During construction,energy Same as Planned Action Study Area
would be consumed by
dernolition and reconstruction
activities.These activities would
include the manufacture of
construction materials,transport
Platlned ActiOn Ordifldn[Q 2z Attachment B:Mitigation Document
CJRDINANCE N4. 5813
ATTACHMENT B
Patential Sunset Terrace
Type of Impact Planned Action Study Area Redevelapment Subarea
of construction materials to and
from the construction site,and
operation af machinery during
demolitian and construction.
Operations
Energy tJsage:Study Area The annuai energy usage is The annual energy usage is
and Subarea estimated at 255,845 ta 275,529 estimated at 22,33$to 43,654
million British thermal units rnillion British thermal units(Btu).
(Btu).
Indirect and Cumulative
Energy Usage:Subarea, With high levels of transit- With high levels of transit-oriented
Study Area,and Region oriented and high-density and high-density development the
develapment the Planned Actian Planned Actian Alternatives would
Alternatives wauld provide the pravide the greatest estimated
greatest estimated regional regianal energy usage reduction for
energy usage reduction for the the subarea compared to the Na
study area compared to the No Action Alternative: 1,145 to 3,624
Action Alternative:26,3$3 to million Btu,
29,194 millian Btu.
Unavoidabfe Adverse Impacts
Additional energy would be consumed and would contribute to increases in demand associated with
the growth and development af 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 canservation features would be incorporated into
building design as required by the current City building codes. For the Potentiat Sunset Terrace
Redeveiopment Subarea,HUD encourages public housing authorities such as RHA to use Energy
Star,renewable energy,and green construction practices in public hausing.As such,no significant
unavoidable adverse impacts an energy use are anticipated,
Planned Action(7rdinancE 23 Attacfiment e:Mitigation Document
ORDINANCE NtJ. 5813
ATTACHMENT B
Mitigation Measur�s
Table 10. Energy Mitigation Measures
Planned Action Study Area Potentia]Sunset Terrace Redevelapment Subarea
Although the grawth and development wauid In addition to the mitigation measures described far
result in increased energy demand in the the Planned Action Study Area,according to the King
Planned Action Study Area under all of the County proposed GHG reduction regulation,energy
alternatives,expanding the beneficial transit- reductions can be provided with the implementation
ariented development and high-density of the foilowing basic requirements of the American
hausing development within the study area Society of Heatin,g,Refri,gerating and Air-�anditianing
would reduce regianal energy usage. Engzneers Advanced&uildin,gs Core Performance Guide
Therefare,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.Hawever,to further 3pola energy reduction for residential dwelling
reduce energy consumptian,the City shall � that are 50p/o of average size;and 15%energy
encourage future developers ta implement reduction for residential dwelling that are 75%of
additional trip-reduction measures and average size;and
energy conservation measures.For example,
energy and GHG reductions can be achieved . 12%energy reduction for office,school,retail,
through implementation of the following and public assembly buildings that are smaller
energy canservatian techniques or equivaient than 100,004 square feet in floor area.
approaches.
. An energy reduction of 12Q/o can be
achieved by implementing sufficient
strategies established by the Northwest
Energy Star Homes program for
multifamily residential buildings.The
Northwest ENERGY STAR I-Iomes
pragram(U.S.Enviranmental Pratection
Agency 2010)is designed to help buiiders
construct energy-ef�cient homes in
Washington,Oregon,Idaha,and Montana
to meet energy-efficiency guidelines set
forth by the EPA.
. An energy reduction of 10%would
comply with Seattle Energy Cade for non-
residentia]buildings.
See also Air Quality mitigation measures.The
City shall require developmem applicants to
consider trip-reduction measures and energy
conservation,and as part of their application
explain what reductian measures are included
and which ones are not ineluded(based an
that are part of Table 6 ar Tabie 10).The City
may condition Planned Action applications ta
incorporate feasible trip reduction and energy
conservatian measures.
Nexus
City of Renton Comprehensive Plan
Planned Action Ordinance 24 Attachment B:Mftigation Document
oRai�van�c� �vo. �s1�
ATTACHMENT B
RMC 4-5-051 Washington State Energy Code Adopted
6. Noise
Significant Impacts
Tabie 11. Noise Significant Impacts
Fatentia]Sunset Terrace
Type of Impact Planned Action Study Area Redevelopment Subarea
Construction Development in the study area Same as Planned Action Study
would require demolitian and Area
canstruction activity,which
would temporarily increase
noise levels at residences close
to the develapment site.This
type of activity could cause
annayance and speech
interference at outdoor
tocations adjacent to the
construction sites,and could
cause discernible noise.
Operatians
Noise from New Uniess properly controiled, Same as Pianned Action Study
Commercial Operations rnechanical equiprnent(e.g., Area
rooftop air conditioning units)
and trucks at loading docks af
affice and retail buildings in the
study area could cause ambient
noise levels at nearby
residential housing units to
exceed the City naise ordinance
timits.
lndirectand Cumulative
Noise from Increased For most residents adjacent to Development wauld result in
Traffic:Praposat with roadways in the study area, noise increase from vehicles
Future Traffic Levels increased traffic wauEd result in traveling on NE Sunset
the greatest increase in ambient Boulevard and locat streets The
noise]evels,caused by moving estimated day-night naise levels
traf�c and vehicles idling at from NE Sunset Boulevard at
intersections.Development the adjacent buildings indicates
would result in noise increase they wauld be exposed to
from vehicies traveling an NE "normaliy unacceptable"noise
Sunset Boulevard and local levels exceeding U.S.
streets. Department of Housing and
Urban Develaprnent's(HUD's)
outdoor day-night noise
criterion of b5 dBA.The naise
levels at these first raw
residential dwellings currently
exceed the HUD noise criterion
and wauld continue to exceed
Planned Action Ordinance 25 Attathment B:Mitfgation Qocument
ORDINANCE N0. 5813
ATTACHMENT B
Potential Sunset Terrace
Type of Impact Planned Action Study Area Redevelopment Subarea
the criterion under Planned
Action Atternatives.
Unavoidable Adverse Impacts
No significant unavoidable adverse constructian 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 ndise impacts are anticipated at residences alang NE Sunset
Boulevard in the Planned Action Study Area per WSDOT criteria,because the noise increase caused
by NE Sunset Boulevard traffic is less than the WSDOT"substantial increase"impact threshald,
Partians af the Potential Sunset Terrace Redevelapment Subarea,even under existing conditions
and the Na Actian Alternative,would be deemed narmally unacceptable under the HUD noise
criteria withoat implementation of noise attenuation mitigation,due to traffic noise from the
adjacent street(NE Sunset Boulevard).Na significant unavoidable adverse noise impacts are
anticipated in this subarea,if the noise control measures noted below are implemented ta reduce
anticipated future traffic noise to levels suitable for residential uses under the HUD criteria.
Mitigation Measures
Table 12. Noise Mitigatian Measures
Planned Action Study Area Potential Sunset Terrace Redevelopment Subarea
Constructian Naise Mitigation measures described in the Planned
To reduce constructian noise at nearby Action Study Area wouid aiso apply to this
receivers,the failowing mitigatian measures subarea.
shall be incorporated by Planned Action Site design approaches shall be incorporated to
applicants inta construction plans and reduce potential noise impacts including the
contractor specifications. following.
. Locate stationary equipment away from . Concentrating park and apen space uses away
receiving properties. from NE Sunset Boulevard.
. Erect portable noise barriers around loud • Where park and open space uses must be
stationary equipment lacated near sensitive located near NE Sunset Boulevard,avoiding
receivers. activities that require easily understood
conversation(e.g.,instructianal classes),or
. Limit construction activities to between 7:OQ flther uses where quiet canditions are
a.m.and 10:00 p.m.to avoid sensitive required for the primary function of the
nighttime hours. activi
t3'•
. Turn off idling canstruction equipment. , Allowing for balconies on exterior facing units
. Require contractors to rigorously maintain only if they do not open to a bedroam.
all equipment. According to HUD noise guideboak,noise
• Train construction crews ta avoid attenuation fi om various building materials are
unnecessarily loud actions(e.g.,dropping calcuiated using saund transmission class(STC)
bundles of rebar onto the ground or �'ating.Although the standard canstruction
dragging steel plates across pavement)near �PPraaches can normally achieve the STC rating of
noise-sensitive areas. more than 24 dBA as demonstrated in Final EIS
Appendix E,the City shall reGuire a 5TC rating of
New Commerciat Operation Noise 30 dBA reduction for these first row residential
The City shall require all prospective future
Pianned Action Ordinance 26 Attachment 8:Mitigation Document
ORDINANCE N0. 5813
ATTACHMENT B
P►anned 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 of the proposed development,the City
may 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
Potential Sunset Terrace
Type of Impact Planned Action Study Area Redevelopment Subarea
Construction Potential construction impacts Existing subsurface
indude releasing existing contaminations have not been
contaminants to the environment identified on the redevelopable
by ground-disturbing or properties and,therefore,are not
dewatering activities, expected to be encountered
encountering underground during construction.Hazardous
storage tanks(USTs)or leaking building materials such as lead-
USTs,generating hazardous based paint and asbestos-
building materials that require containing materials(ACMs)
3 HUD noise guidebook,Chapter 4,page 33"...use the STC ratings with a bit of caution and remain aware of the
possible 2-3 d6 overstating that you may get with the STC rating system."
Planned ACtiOn OrdinanCe z� Attachment B:Mitigation Document
ORDINANCE NO. 5813
ATTACHMENT B
Potential Sunset Terrace
Type of Impact Planned Action Study Area Redevelopment Subarea
special disposal,and accidentally could be generated from
releasing hazardous substances. demolition of the 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 No impact
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.
lndirect 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 of the 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 The construction and operation mitigation
unreported underground fuel tanks is a risk measures identified for the Planned Action Study
when performing construction,contractors Area are applicable to the subarea.
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
Pldnned ACtiOn OfdlnanCe Z$ Attachment B:Mitigation Document
�RDINANCE NC}. 5813
ATTACHMENT B
Planned Action Study Area Potential Sunset Terrace Redevelapment Subarea
accordance with the Model Toxics Cantral
Act(MTCA)(WAC 173-340)and the
Dangerous Waste(WAC 173-303)
regulat'sans.
. Contractors shall be required to develop
and implement the Stormwater Pollution
Preventian Plan,BMPs,and ather permit
canditians 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 materiais spil)s from
routine equipment operatian during
construction;prepare and maintain a
current spill prevention,cantrol,and
countermeasure plan,and have an
individual on site designated as an
emergency coardinator;and understand
and use proper hazardous materials
starage and handling procedures and
emergency procedures,including proper
spill natification and response
requirements.
. All asbestos-containing materials(ACM)
and lead-based paint wili be identiFed in
structures priar to demolition activities in
accordance with 24 CFR Part 35.lf ACM or
lead-based paint is identified,appropriately
trained and licensed personnel will contain,
remove,and properly dispose of the ACM
and/or lead-based paint materiat according
to federal and state regulatians prior to
demolition af the affected area.
. If warranted,contractors shall conduct
additional studies to]ocate undacumented
underground starage tank(USTs)and fuel
lines before construction of specific
development projects(areas af concern
include current and forrner commercial and
residentia]structures)and will
permanently decommission and properly
remove USTs from project sites before
commencing general construction
activities.
. Priar to acquisition of known or potentially
contaminated property,the City shalt
require apprapriate due diligence be
performed ta identify the presence and
extent of soil or groundwater
Planned Action Ordinance 29 Attachmenk 8:Mitigation pocument
QRDINANCE N0. 5813
ATTACHMENT B
Planned Action Study Area Potential Sunset Terrace Redevelapment Subarea
contamination.This can help to prevent or
manage liabilities for any long-term clean-
up activities that might be angoing during
project aperations.If contaminatian is
discovered,the project proponent will
cornply with all state and federal
regulations far contaminated sites.
Nexus
City of Rentan Comprehensive Plan
RMC 4-4-030 Development Guidetines and Regulations-General
RMC Title 4 Chapter 5 Building and Fire Prevention Standards
8. Land Use
Significant Impacts
Tabte 15, Land Use Impacts
Potential Sunset Terrace
Type of Impact Ptanned Action Study Area Redevelopment Subarea
Construction The incremental nature of Same as Planned Action Study
develapment over the planning Area
period would minimize the
number af nearby residents
exposed to temporary
construction impacts including
dust emissions,noise,
construction traffic,and sporadic
interference with access to
adjacent residences and
businesses.
Operations
Land Use Patterns Planned Action Alternatives Planned Action Alternatives
would provide more than 2,300 to would provide about 266-554
2,500 dwelling units and 1.2 to mare dwelling units than existing
1.3 million square feet of conditions in a mixed-use
cornmercial space compared ta development that integrates
existing conditions. comrnercial and civic spaces.
Redevelopment would pravide
mare cornmercial development
than residential development.
This aiternative would also
pravide more than two times as
many residential dwellings as
currently exist in the study area.
Plans and Policies Planned Actian Alternatives Planned Action Alternatives
pravide the greatest degree of provide the greatest degree of
P(dllned ACtion OrdilldnC@ 30 Attathment B:Mitigation Document
ORDINANCE N0. 5813
ATTACHMENT B
Potential Sunset Terrace
Type of Impact Planned Action Study Area Redevelopment Subarea
consistency among the consistency with the City's land
alternatives with the City use element goals and policies of
Comprehensive Plan goals, all alternatives by promoting the
objectives,and policies by redevelopment of the Sunset
implementing the development Terrace public housing
types envisioned in the City's land community.It also does more
use and zoning designations than other alternatives to develop
within the study area.Anticipated the Center Village.Development
growth would help the City meet in the subarea under this
its 2031 housing and employment alternative has a similar
targets. consistency as the study area for
Public investments would need to other City goals and policies,
be accounted for in amendments providing a greater degree of
to the City's Transportation and consistency with those goals and
Capital Facilities elements. policies than other alternatives.
/ndirect and Cumulative No indirect or cumulative land Redevelopment of the subarea
use impacts are anticipated under this alternative would
outside the study area.The City serve as an incentive for other
applies its policies and redevelopment opportunities
development regulations to create near the study area.
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.
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 Construction mitigation would be the same as
planned action applicants to implement described under the Planned Action Study Area.
appropriate construction mitigation measures, The City and RHA should coordinate on future
including but not limited to dust control and
Pldnned ACtiOn OfdindnCe 31 Attachment B:Mitigation Document
ORDINANCE N0. 5813
ATTACHMENT B
Planned Action Study Area Potential Sunset Terrace Redevelopment Subarea
construction traffic management. Sunset Terrace redevelopment and Planned
The City shouid 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 of the Planned Action Ordinance adoption � Locate the majority of the most intensive
process,the City should amend its Comprehensive non-residential development along or near
Plan's Transportation and Capital Facilities 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
Potential Sunset Terrace
Type of Impact Planned Action Study Area Redevelopment Subarea
Construction Construction activities could The demolition of the Sunset
temporarily increase congestion Terrace complex to allow for the
and reduce parking,local access subarea redevelopment would
for businesses and residents,and require the relocation of the
access near the construction tenants.
activities,which could negatively Moreover,the relocation of the
affect businesses;however, tenants could affect some local
businesses located close to businesses during construction,if
construction activities could the tenants are relocated outside
experience an increase in revenue of the immediate area; however,
from spending by construction since the total number of
workers. relocations represents a small
portion of the overall population
any impact would likely be small
in scale.
Operations The higher number of dwelling The Planned Action Alternatives
units and jobs would result in would increase dwelling units and
greater intensities in development jobs by 266-554 net dwelling
Planned ACtion OfdindnCe 32 Attachment B:Mitigation Document
ORDINANCE NO. 5813
ATTACHMENT B
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.
lndirect 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 Ordindnce 33 Attachment B:Mitigation Document
ORDINANCE N0. 5813
ATTACHMENT B
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, In addition to mitigation measures described for
aesthetics,and transportation impacts during the Planned Action Study Area,the following
construction are identified in Sections 2,6, 12, mitigation measures apply:
and 14,respectively,of this Mitigation Document. . Public housing tenants shall be provided
These measures would address many of the relocation assistance under the Uniform
construction-related impacts that could Relocation Act.
negatively affect the study area businesses. . RHA should consider phased demolition and
In addition,with the reconstruction of NE Sunset reconstruction to minimize the need to relocate
Boulevard,or with any new development,if all the residents at the same time,or the new
access to businesses is affected,the following affordable housing development could be
measures should be addressed by the City or constructed prior to demolition to provide
WSDOT: opportunities to relocate tenants within the
. Provide detour,open for business,and other subarea.
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.
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
Plann2d ACtion OfdindnCe 34 Attachment B:Mitigation Document
ORDINANCE NO. 5813
ATTACHMENT B
Potential Sunset Terrace
Type of Impact Planned Action Study Area Redevelopment Subarea
construction traffic,which would adjacent residents to the subject
affect current residents. properties.
Operations The Planned Action Alternatives In this subarea,110 public
assume 40%of the study area housing and duplex dwellings
acreage would infilt or redevelop. would be eliminated.There would
This would result in the greatest be a 1:1 replacement of public
number of dwellings replaced at housing units on site and in the
299. Planned Action Study Area.
The Planned Action Alternatives The number of units added would
would add up to approximately be 266-554 above existing
2,339 to 2,507 new dwellings. dwellings,for a total of 376-664
In the study area there is a units.About three quarters of the
potential for additional market units would be affordable or public,
rate dwellings as well as and another approximate quarter
affordable and public dwellings. Would be market-rate dwelling
Most new units would be units.
multifamily.
lndirect Increased housing could increase The potential for residents to help
local resident spending at support local businesses as well
businesses in the study area,and as to create a demand for services
could also create an increased is similar to the Planned Action
demand for parks and recreation, Study Area.
public services,and utilities.
Cumulative Growth in the study area would The support of the new dwellings
be consistent with the City's to assist the City in meeting
Comprehensive Plan and would growth targets is similar to the
contribute to meeting growth Planned Action Study Area.
targets for the City's next
Comprehensive Plan Update for
the year 2031.
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 of the 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 35 Attachment B:Mitigation Document
ORDINANCE N0. 5813
ATfACHMENT 8
Mitigation Measures
Table 20. Housing Mi#igation Measures
Patentiai Sunset Terrace Redevetapmer►t
Planned Action Study Area Subarea
Renton Municipai Cade(RMC)4-4-Q30(C) Construction mitigation would be as described
identifies construction hnurs intended to address for the Planned Action Study Area.
noise in sensitive time periods.See Section 6, RHA has cammitted to replacement hausing for
Noise,of this Mitigation Document regarding other the Sunset Terrace public housing units at a 1:1
noise mitigatian measures for constructian ratio,consistent with the existing proportion of
periods. units by number af bedrooms.Such replacement
When federal funds are being used for a praposal, hausing could occur on site and jar off site.
displaced tenants shall be offered relocation During the time replacement hausing is under
assistance in compliance with the Uniform construction,Section 8 vouchers,or equivalent
Relocation Assistance and Real Property measures,shall be used to relocate tenants.
Acquisitions Policies Act of 1970,as amended.
The Ciry and RHA should apply for federa3,state,
and local funding programs described in Draft EIS
Section 3.2Q,Hausing,ta promote new housing
appartunities for low and very low-income
housing.
RHA shauld establish a local preference far rental
assistance.For example,RHA could establish a
priority list far Sectian 8 vouchers for displaced
low-income tenants in the Planned Action Study
Area(in addition to the relocation assistance to he
provided by RHA to the Sunset Terrace residents).
llnit replacement and relocation assistance for the
family village would be the same as described for
the Patential Sunset Terrace Redevelapment
Subarea.
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. Environmentallusfiice
Significant Impacts
Table 21. Environmentallustice Impacts
Potentia]Sunset Terrace
Type of Impact Planned Action Study Area Redevetopment Subarea
Constructian Residents near constructian The demolition of the Sunset
activities would likely be affected Terrace camplex and construction
by temporary noise,dust,and of the proposed conceptual plans
visual impacts due to wauld require the relocatian of
Planned Action Ordinance 36 Attachment B:Mitigation Document
ORDINANCE N0. 5813
ATTACHMENT B
Potential Sunset Terrace
Type of Impact Planned Action Study Area Redevelopment Subarea
construction;these impacts would the tenants of the Sunset Terrace
be short-term in nature.The complex likely through Section 8
poputation of the study area is vouchers.Because the tenants are
predominately non-minority and low-income and predominately
non-low-income and any negative minority,this would constitute a
impacts would likely occur on greater impact on these
these populations to a greater populations than other
degree than the minority and low- populations.
income populations.
Operations Residential,commercial,and Planned Action Alternatives
recreational development and would have a number of beneficial
civic and infrastructure effects on minority and low-
improvements under Planned income populations in the
Action Alternatives would subarea,including the
improve the overall redevelopment of the existing
neighborhood,making it a more dwelling units,construction of
cohesive and desirable place to additional units,transportation
live for all populations in the improvements,and the addition
community,including minority of other community facilities(i.e.,
and low-income populations. senior day health,library,parks).
The family village would be These changes would result in
beneficial for all populations in improvements to public health
the Planned Action Study Area, and to the aesthetics of the area.
but these benefits could accrue to These would all improve
a greater degree for minority and community cohesion for subarea
low-income populations due to residents.
the close proximity,especially for
those without access to a vehicle.
lndirect The introduction of new retail and Housing types and affordability
commercial space within the would be more varied.New retail
study area would increase and commercial space wand
employment opportunities.These provide new employment
opportunities would benefit all opportunities could be seen as
study area populations,but could more beneficial to subarea
benefit minority and low-income residents who may be
populations to a greater degree. unemployed or not have a their
The Planned Action Alternatives own vehicle and would,therefore,
would increase the variety of benefit more from the proximity.
residential unit types and
affordability levels would reduce
the concentration of low-income
households in the subarea,and
thereby reduce or eliminate some
of the social consequences of such
concentrations.
Cumulative Cumulative impacts would Adverse impacts are not
primarily be beneficial.As the anticipated.New dwelling units
area continues to redevelop with would be affordable,public,and
new investments,public and market-rate units.The beneficial
private,it would become more cumulative impacts identified
desirable for the residents and under the Planned Action Study
Planned ACtiOn OrdinanCe 3� Attachment B:Mitigation Document
�RDINANCE Nt}. 5813
AITACHMENT B
Pc�tential Sunset Terrace
Type of Impact Planned Action 5tudy Area Redevelopment Subarea
would continue to create new Area would be similar.
jobs.The new development and
additian of more market-rate
units could cause the study area
to become less affordable to
lower-income papulations,which
could result in these populations
needing to relocate outside of the
study area.
Unavoidabie Adverse impacts
There are no long-term significant unavoidable adverse impacts related to environmental justice.
The Planned Actian alternatives would result in primarily beneficial impacts associated with new
dwelling units,new civic facilities and parks,improvements in nonmotorized transpartation,and
new employment opportunities in the surrounding area.
During construction and in the shart-term residents would be subject to construction activities and
the tenants af the Sunset Terrace complex would be required to relocate during demolition anc!
constructian.However,construction mitigation and relocatian assistance mitigation measures(for
the RHA units)would minimize irnpacts.
Mitigation Measures
Table 22. Enviranmental Justice Mitigatian Measures
Planned Actian Study Area Patential Sunset Terrace Redevelapment Subarea
There are no specific mitigation measures related Mitigation measures during constructian include
ta environmental justice during constructian or the need far replacement housing far the
aperation.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 Sectian 8 vaucher strategy during construction.
populations.These measures are described in See Section 9,Socioecanornics,of this Mitigation
Sections 2,6,12,and 14,respectivety,of this Document.
Mitigation Document.
Nexus
City of Renton Comprehensive Plan
RMC 4-4-Q30 Development Guidelines and Regulations—Genera]
12. aestnet�cs
Significant Impacts
Table 23. Aesthetic Impacts
Potentiai Sunset Terrace
Type of Impact Planned Action Study Area Redevelopment Subarea
Pldnned ActiOn OfdillBnG2 38 Attachment B:Mitigation Document
ORDINANCE N0. 5813
ATTACHMENT B
Potential Sunset Terrace
Type of Impact Planned Action Study Area Redevelopment Subarea
Construction The demolition of existing Same as Planned Action Study
structures and construction of Area
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.
Operations
Visual Character The extensive public investment The visual character of the
under the Planned Action Potential Sunset Terrace
Alternatives would result in Redevelopment Subarea would
widespread changes to the visual change from its current state to a
character of the Planned Action pedestrian-oriented community
Study Area affecting about 40%of with a mix of residential,ground-
parcel acres.Private development floor commercial,and community
would take full advantage of the uses linked by public spaces and
current development regulations, landscaped pedestrian pathways.
resulting in a transition to a The Preferred Alternative concept
mixed-use,pedestrian-oriented would focus less residential
neighborhood. development in the subarea than
The application of adopted design Alternative 3,making room for a
standards as new construction larger neighborhood park.
gradually replaces older buildings
would result in an overall
improvement of the visual
environment in the Planned
Action Study Area.
Height and Bulk The subarea would experience Building height and bulk within
moderate increases in height and the Potential Sunset Terrace
bulk over existing conditions. Redevelopment Subarea would
Heights would range from two to range from one to six stories.
four stories,and buildings would The Preferred Alternative,
generally be located closer to the however,would provide much
street than under current more park space than Alternative
conditions.The tallest building 3,and the Reevaluation
heights under the Preferred Alternative more park space than
Alternative would occur on these alternatives providing a
property zoned Center Village. sense of openness to the Sunset
Terrace site.In addition,buildings
on the site would be arranged to
place 2-story townhomes adjacent
Pldnned ActiOn OrdinanCe 39 Attachment B:Mitigation Document
ORDINANCE NO. 5813
ATTACHMENT B
Potential Sunset Terrace
Type of Impact Planned Action Study Area Redevelopment Subarea
to the park on the north and taller
multifamily residential buildings
along NE Sunset Boulevard and
Sunset Lane NE to the south.
Shade and Shadow Because heights in the Planned Taller buildings along NE Sunset
Action Study Area would Boulevard would cast longer
generally increase,shading effects shadows on the interior of the
would also become more subarea to the north,potentially
pronounced,though only to a shading sidewalks along Sunset
moderate degree.Increased Lane NE.Dependent on final
building heights within the design,building may potentially
Planned Action Study Area could shade sidewalks along Sunset
result in increased shading of Lane NE and Glenwood
pedestrian areas and public Avenue NE at various times of the
spaces,particularly along day.
NE Sunset Boulevard,which is With the Reevaluation Alternative
likely to see some of the most or Preferred Alternative,the
intense commercial and mixed- increased size of the central park,
use development. as well as the placement of 2-
story townhomes adjacent to the
park,reduces the potential for
adverse shading effects compared
to Alternative 3.
Indirect/Cumulative While redevelopment of the Redevelopment of the Sunset
public facilities discussed under Terrace housing facility would be
the various alternatives would be a localized action,but additional
a coherent effort,private private development is
development throughout the anticipated to occur in response
study area would occur to this public investment,and
piecemeal.Individual private each private development project
developments are likely to be of would contribute to the overall
higher density,greater height,and transformation of the area's
a different architectural style than aesthetic character.
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.
Unavoidable Adverse Impacts
With the application of adopted development regulations and recommended mitigation measures,
no significant unavoidable adverse aesthetic impacts are anticipated.
Planned ACtion OfdindflCe 40 Attachment B:Mitigation Document
ORDINANCE N0. 5813
ATTACHMENT B
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 Current city design standards address building
measures will be necessary to minimize impacts modulation and roofline variation and are
associated with increased height,bulk,and shading. recommended for application in the
Future development occurring under any of the Reevaluation/Addendum.
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
A►ternatives 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 tmpacts
Potential Sunset Terrace
Type of Impact Planned Action Study Area Redevelopment Subarea
Planned ACtiOn OrdinanCe 41 Attachment B:Mitigation Document
ORDINANCE N0. 5813
ATTACHMENT B
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
consideration of historic and
archaeological sites and/or
features.
Operations,lndirect,and Development could occur on or Future development in the
Cumulative lmpacts near parcels in the Planned Action subarea would have no impact
Study Area that contain any known National Register of
previously identified or unknown Historic Places(NRHP)-eligible
cultural resources.This archaeological or historic
development would likely involve resources,and the likelihood of
ground disturbance and impacts on unknown cultural
modifications to buildings and resources is considered low.
structures,which could result in a
potentially significant impact on
cultural resources.Because of the
potential to impact unknown
cultural resources,a detailed
review of potential impacts on
cultural resources would be
required on a project-specific
basis.
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
Potential Sunset Terrace Redevelopment
Planned Action Study Area Subarea
. In the event that a proposed development site Since no native"A"horizon was identified at the
within the study area contains a building at Edmonds-Glenwood site and throughout the
least 50-years of age that is not listed in or Sunset Terrace public housing complex,no
determined eligible for listing in the National further archaeological investigations are
Register of Historic Places(NRHP)or recommended for these areas.Although a
Washington Heritage Register(WHR),the buried,native"A"horizon was identified on
project shall be required to undergo review to RHA's Piha site(east of Harrington Avenue NE),
determine if the property is considered eligible the potential for an archaeological discovery is
for listing. very low.The project should proceed with no
further archaeolo�ical investigations.If
Planned Action Ordinance 42 Attachment B:Mitigation Document
ORDINANCE N0. 5813
ATTACHMENT B
Potential Sunset Terrace Redevelopment
Planned Action Study Area Subarea
. It is recommended that the City adopt a archaeological materials are discovered during
historic preservation ordinance that considers ground disturbing excavations,the contractor
the identification and treatment of historic shall halt excavations in the vicinity of the find
resources listed in or determined eligible for and contact DAHP.
listing in the NRHP or WHR,or locally If human skeletal remains are discovered,or if
designated.Until such time an ordinance is during excavation archaeological materials are
adopted,the City must enter into consultation uncovered,the proponent will immediately stop
with DAHP regarding potential impacts on work and notify agencies as outlined in the
historic resources in the study area that are Unanticipated Discovery Plan provided in Draft
listed in or determined eligible for listing in the EIS Appendix J and as amended by Final EIS
NRHP or WHR. Chapter 4(and provided as Attachment 1 of this
Exhibit B).If the project would disturb an
. For future projects that involve significant archaeological resource,the City shall impose
excavation in the study area the City must any and all measures to avoid or substantially
enter into consultation with Washington State lessen the impact.If avoidance of the
Department of Archaeology and Historic archaeological resource is not possible,an
Preservation(DAHP)to determine the appropriate research design must be developed
likelihood of and recommendations for and implemented with full data recovery of the
addressing potential archaeological resources. archaeological resource prior to the
It may be necessary to complete archaeological development project.The avoidance of
testing prior to significant excavation in the archaeological resources through selection of
study area,such as digging for footings or project alternatives and changes in design of
utilities.Archaeological project monitoring project features in the specific area of the
may be recommended for subsurface affected resource(s)would eliminate the need
excavation and construction in high for measuring or mitigating impacts.
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
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 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
Pldnned ACtiOn OfdindnCe 43 Attachment B:Mitigation Document
ORDINANCE N0. 5813
ATTACHMENT B
Potential Sunset Terrace Redevelopment
Planned Action Study Area Subarea
publications.
Nexus
City of Renton Comprehensive Plan
14. Transportation
Significant Impacts
Table 27. Transportation Impacts
Potential Sunset Terrace
Type of Impact Planned Action Study Area Redevelopment Subarea
Construction Potential impacts that could result Same as Planned Action Study
from construction activities Area
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.
Operations
Traffic Operations At Edmonds Avenue NE and NE Delay times in the subarea could
12th Street LOS F conditions are worsen slightly due to the
predicted in both 2015 and 2030. increase in trips generated,but
At Harrington Avenue NE and NE intersections would likely operate
12th Street LOS F conditions are better than the LOS D threshold.
expected in 2030.
Transit At both Edmonds Avenue NE and Same as Planned Action Study
at NE 10th Street,expanded bus Area
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.
Nonmotorized Planned Action Alternatives Same as Planned Action Study
include improved nonmotorized Area
facilities such as bicycle lanes,
sidewalks,and marked
Planned ACtion OfdinanCe 44 Attachment B:Mitigation Document
ORDINANCE N0. 5813
ATTACHMENT 6
Potential Sunset Terrace
Type of Impact Planned Action Study Area Redevelopment Subarea
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
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.
Sustainability The Planned Action Alternatives Same as Planned Action Study
score a minimum of 33 with a Area
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 leve(s of
improvements or higher quality of
improvements such as wider
sidewalks,wider planting areas,
and special paving.
Indirect and Cumulative Growth would increase in Same as Planned Action Study
comparison to Comprehensive Area
Plan land use estimates;however,
the Planned Action Alternatives'
operational analysis is based on a
model that addresses growth
Planned Action Ordinance 45 Attathment B:Mitigation Document
ORDINANCE N0. 5813
ATTACHMENT B
Potential Sunset Terrace
Type of Impact Planned Action Study Area Redevelopment Subarea
cumulatively on the City's current
and planned roadway system and
any operational deficiencies can
be mitigated to meet City of
Renton thresholds.
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
Potential Sunset Terrace Redevelopment
Planned Action Study Area Subarea
Operational Mitigation No permanent mitigation measures are
Planned Action applicants shall pay a Transportation recommended within Potential Sunset Terrace
Impact Fee as determined by the Renton Municipal Redevelopment Subarea.The intersection
Code at the time of payment,payable to the City as operations under action alternatives are
specified in the Renton Municipal Code. expected to be within the LOS D threshold.
Planned Action applicants shall provide a traffic During construction,mitigation measures are
analysis estimating trips generated by their those described for the Planned Action Study
proposed development and demonstrate Area.Flaggers,advance warning signage to
conformance with the Planned Action Ordinance trip alert motorists of detours or closures,and
ranges and thresholds in Section 3(d) (4)as well as reduced speed zones would likely benefit
demonstrate conformance with the City's traffic operations.
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 tanes and,therefore,the capacity of the
intersection.With implementation,this
Planned Action Ordinance 46 Attachment B Mitigation Document
ORDINANCE N0. 5813
ATTACHMENT B
Potential Sunset Terrace Redevelopment
Planned Action Study Area Subarea
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:
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 a11 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
fi-om 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
Pldnned Action OrdinanC2 47 Attachment B:M�tigation Document
ORDINANCE N0. 5813
ATTACHMENT B
Potential Sunset Terrace Redevelopment
Planned Action Study Area Subarea
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.
Nexus
Renton Comprehensive Plan
RMC 4-6-060 Street Standards
15. Parks and Recreation
Significant Impacts
Table 29. Parks and Recreation Impacts
Potential Sunset Terrace f
Type of Impact Planned Action Study Area Redevelopment Subarea
Construction Construction could temporarily No parks and recreation facilities
disrupt pedestrian access to exist in this subarea and no
existing park properties.Active construction impacts are
construction sites also represent anticipated.
opportunities for creative play
and attractive adventure for
young people in the community.
Operations Although there is an increase in With Alternative 3,portions of
community park acreage there Harrington Avenue NE right-of-
would continue to be a deficiency way within the subarea would be
in neighborhood and community converted to 0.25 acres of passive
park acreage in the Planned open space.
Action Study Area.Deficiencies Under the Preferred Alternative,
are less than for the Preferred Sunset Court Park woutd be
Alternative than Alternative 3 relocated to the Sunset Terrace
which has a similar population Subarea.Additionally,this park
but less proposed park facilities. would be expanded from 0.5 acres
Ballfield and sport court LOS to 2.65 acres and would have a
standards are applied citywide; vacation of Harrington Avenue NE
thus a lack of such facilities within similar to Alternative 3. This
the Planned Action Study Area or increases the acreage in
the Potential Sunset Terrace neighborhood park land for this
Redevelopment Subarea does not subarea and the Planned Action
indicate an LOS deficiency. Study Area.
NE Sunset Boulevard would be
improved to include bike lanes, The Reevaluation Alternative also
intersection improvements,and relocates Sunset Court Park and
Pldnned ACtiOn OfdinanC2 48 Attachment B:Mitigation Document
QRDINANCE N0. 5813
ATfACNMENT B
Potential Sunset Terrace
Type of Impact Planned Action Study Area Redevelopment Subarea
sidewalks,providing a more would vacate a portion of
walkabte corridar and more Harrington Avenue similar to the
direct access between residential above alternatives.The size ofthe
areas and park land park is the greatest considered at
about 3.2 acres.
Additionally,a library would be
constructed in the subarea.
/ndirect Indirect impacts are expected to Facility deficiencies in this
mostly fall on the City's regional subarea would atso tikely lead to
and communitywide parks and spillover demand for aetive
recreatian facilities.Far example, piayfields far team sports in ather
as the population increases in the parts of Renton as well as in
Planned Action Study Area,there surrounding cornmunities.
will be a growing deficiency of
Neighborhoad and Community
Parks.Due to praximity,those
demands wauld 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
thase created by general
population growth throughout the
Renton community.
Unavoidabie Adverse Impacts
Under studied alternatives for the Planned Action Study Area and Potential Sunset Terrace
Redevelopment 5ubarea,there wauld 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 With the prevalence of public facilities in the
parks within the Planned Action Study Area,such Planned Action Study Area as a whole,and the
as an increase in noise,dust,and access addition of a centrai park and a library in the
timitations,shall be mitigated as per a Potential Sunset Terrace Redevelopment
construction mitigation plan developed by Subarea,there is opportunity to manage the
Planned Action applicants and approved by the current facilities in a manner that maximizes
��ty, their beneficial parks and recreation uses for
Planned Action Applicants shall pay a Parks and future population growth.The mitigation
Recreation Impact fee as deterrnined by the measures proposed far the Flanned Action Study
Area shall a�pty to the Patential Sunset Terrace
Pldnned ACtion OrdindnCe 49 A#tachment B:Mitigatioo Document
ORDINANCE N0. 5813
ATTACHMENT B
Planned Action Study Area Potential Sunset Terrace Redevelopment Subarea
Renton Municipal Code at the time of payment, Redevelopment Subarea.
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
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.
Planned Action Ordinance 50 Attachment B:Mitigation Document
4RDINANCE N0. 5813
ATfACHMENT B
Nexus
Renton Camprehensive Plan
Parks,Recreation,Open Space and Natural Resources Plan
16. Public Services
Significant Impacts
Table 31. Public Services Impacts
Potential Sunset Terrace
Type of tmpact Planned Action Study Area Redevelopment Subarea*
Construction
Police The Renton Police Department Same as Planned Action Study
cauld experience an increase in Area
calls for service related to
construction site theft,vandalism,
or trespassing relating to
construction.
Pire and Emergency Medical Construction impacts on fire Sarne as Planned Action Study
Services protection and emergency Area
medical services could include
increased calls far service related
to inspection of construction sites
and patential construction-related
injuries.
Education The McKnight Middle Schaol No impact
expansion wauid accur similar to
other alternatives.In addition,
changes would occur at the
Hillcrest F.arly Childhoad Center
and the reconfigured Hillcrest
Early Childhaad Center would be
part of a family village cancept
that would include recreation and
housing.The expansion of
McKnight Middle School is not
expected to disrupt student
attendance at the campus.
Health Care There may be temporary changes Same as Planned Action Study
to nonmotorized and motorized Area
access to health care services
during infrastructure
construction(e.g.,NE Sunset
Baulevard),but alternative routes
wauld be established.
Social Services There may be temparary changes Redevelapment of the Sunset
to nonmotorized and motorized Terrace housing develapment
access to social services during would displace the existing on-
infrastructure construction(e.g., site community meeting space
Planned Action Ordinance 51 Attachment B:Mit9gation Document
ORDINANCE N0. 5813
ATTACHMENT B
Potential Sunset Terrace
Type of Impact Planned Action Study Area Redevelopment Subarea*
NE Sunset Boulevard),but that is currently used for on-site
alternative routes would be social service programs.However,
established. the space would be replaced
Construction at the Hillcrest Early onsite or nearby with a larger and
Childhood Center as part of the more modern facility,and with
family village redevelopment, appropriate phasing of
would require relocation of the development,disruption to on-
Friendly Kitchen weekly meal site social service programs can
program that meets at that site. be minimized or avoided.
The Friendly Kitchen program
would either be relocated
permanently as a part of the
redevelopment or may be
accommodated as part of the
range of social services provided
at the family village.
Solid Waste Planned Action Alternatives Same as Planned Action Study
would result in construction- Area
related waste generation.
Library When the library is relocated, Same as Planned Action Study
library services may be Area
temporarily unavailable in the
study area,but services would be
available at other branches.
Operations
Police Applying the Renton Police Applying the Renton Police
Department staffing per Department standard to the
population standard to the anticipated population increase
anticipated population increase would account for 1.0 to1.8 of the
would result in a need for an approximately 8.6 to 9.3
estimated 8.6 to 9.3 additional additional police officers to
police officers to address increase address population growth study
in service calls related to growth. area.
Fire and Emergency Medical Applying the fire service's staffing Applying the fire service's staffing
Services ratio to growth in the study area ratio to growth in the study area
would result in the need for an to the population growth of in this
additiona11.2 to1.3 firefighter full- subarea would result in the need
time equivalents(FTEs) for less than 0.14 to 0.2 of the 1.2
compared to existing conditions to1.3 firefighter FTEs needed in
to maintain the City's existing the overall Planned Action Study
staffing ratio. Area to maintain the City's
existing staffing ratio.
Education Population growth would result in Population growth would result in
an increase in approximately 526 approximately 60 to 107
to 567 students in the Renton additional students compared to
School District compared to existing conditions.It is
existing conditions.The district's anticipated that this additional
planned opening of Honey Dew increment of students would be
Elementary,as well as accommodated by the district's
construction of additions to planned capital improvements,
McKnight Middle School and including openin�Honey Dew
Plann2d ACtion OfdinanCe 52 Attachment B:Mitigation Document
ORDINANCE N0. 5813
ATTACHMENT B
Potential Sunset Terrace
Type of Impact Planned Action Study Area Redevelopment Subarea*
Hazen High School,would Elementary,expansion of
accommodate this increase in McKnight Middle School,and
student population. redeveloping the Hillcrest Early
New students within the study Childhood Center which would
area would include a higher than provide additional student
average number of students capacity in addition to early
speaking English as a second education programs that
language,increasing demands on currently exist on the site.
the district's English Language
Learners Program.
Health Care Increase in study area population Based VMC's existing ratio of
would increase the need for hospital beds to district
hospital beds in the Valley population,the anticipated
Medical Center(VMC)service population increase would result
area by approximately 4.1 to 4.4 in a small increase of
beds,based on the current ratio of approximately 0.5 to 0.8 hospital
hospital beds to district service beds of the total assumed for the
area population.Additional entire study area.
population growth may aiso
result in increased demand at
VMC's nearby primary care and
urgent care clinics.
Social Services Planned Action Alternatives The subarea's new affordable
include major public investments, housing development for seniors
which could expand upon or would include enriched senior
enhance social services in the services on site,including elder
study area.Among the key day-health for off-site patients in
components outside of Potential a 12,500-square-foot space on the
Sunset Terrace Redevelopment northeastern vacant RHA parcel.
Subarea is development of a The increased population of
family village in the North affordable housing and,in
Subarea. 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 Solid waste generation is Solid waste generation from the
expected to increase by around subarea would increase by about
129,689 to 139,000 pounds per 14,750 to 9,300 pounds per week
week compared to existing compared to existing conditions.
conditions.A portion of this waste A percentage of this waste would
stream would be diverted to be diverted to recycling.
recyclables.
Library Services Anticipated growth would create Anticipated growth in the subarea
a demand for an additional 1,940 would account for approximately
to 2,079 square feet of library 221-397 square feet of library
space compared to existing facilities to meet the growth in
Planned ACtlon OfdinanCe 53 Attachment B:Mitigation Document
ORDINANCE N0. 5813
ATTACHMENT B
Potential Sunset Terrace
Type of Impact Planned Action Study Area Redevelopment Subarea*
conditions. demand.
Indirect and Cumulative All alternatives increase growth Same as Planned Action Study
above existing conditions and Area
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 2035 has been addressed in
the City's 2015 Comprehensive
Plan update.
*The overall conclusions of the FEIS is expected to be similar for the Reevaluation Alternatives in 2014 and
2016,except that patterns of growth and demand may slight shift to have slightly greater need in the
Potential Sunset Terrace Redevelopment Area and slightly less in the overall neighborhood.
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
Planned Action Study Area Potential Sunset Terrace Redevelopment Subarea
Police Police
During construction,security measures shall be Mitigation measures described for the Planned
implemented by developers to reduce potential Action Study Area also apply to this Subarea.
crimina►activity,including on-site security Fire and Emergency Medical Services
surveillance,lighting,and fencing to prevent Mitigation measures described for the Planned
public access. Such measures shall be detailed in Action Study Area also apply to this Subarea.
a construction mitigation plan prepared by Education
Planned Action Applicants and approved by the No mitigation measures are necessary or
City. proposed.
Planned Action applicants shall design street Health Care
layouts,open space,and recreation areas to
promote visibility for residents and police.Street No mitigation measures are necessary or
and sidewalk lighting would discourage theft and Proposed.
vandalism,and enhance security. Social Services
Fire and Emergency Medical Services RHA's provision of community space that could
Developers will construct all new buildings in be used for social services or community meeting
compliance with the International Fire Code and space for community organizations would serve
Renton Development Regulations(RMC Title 4), as mitigation.See the discussion under the
including provision of emergency egress routes P�anned Action Study Area.
and installation of fire extinguishing and smoke RHA should maintain a community meeting space
Planned Action Ordinance 54 Attachment B:Mitigation Document
ORDINANCE N0. 5813
ATTACHMENT 6
Planned Action Study Area Potential Sunset Terrace Redevelopment Subarea
detection systems.All new buildings will comply within or near the subarea during construction
with accessibility standard for people with phase of Sunset Terrace redevelopment that
disabilities,per the requirements of the allows for on-site social service programs to
Americans with Disabilities Act. continue to meet within the subarea.
Ptanned Action applicants shall pay a Fire Impact Solid Waste
Fee as determined by the Renton Municipal Code Mitigation measures described for the Planned
at the time of payment,payable to the City as Action Study Area also apply to this Subarea.
specified in the Renton Municipal Code. Public Library
Education The King County Library System should continue
During renovation of the Hillcrest Early Childhood to monitor growth within its geographic clusters,
Center,the Renton School District shall provide and adjust plans for facility sizing and spacing
temporary transportation or take other according to shifting trends in population growth.
equivalent measures to ensure accessibility of the
early education program to area children who
attend the program.
Since the school district typically plans for a
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
Planned ACtiOn OfdinanCe 55 Attachment B:Mitigation Document
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ATTACHMENT B
Planned Action Study Area Potential Sunset Terrace Redevelopment Subarea
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 of the 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 Study Area,focused on alleviating
poverty,and addressing the needs of some of the
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 Gibrary
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 Pian
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*
Planned ACtiOn OfdindnCe 56 Attachment B:Mitigation Document
ORDINANCE N0. 5813
ATTACHMENT B
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
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.
Water The increase in the average daily The increase in ADD for this
Planned ACtion OrdindnCe 57 Attachment B:Mitigation Document
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ATTACHMENT B
Potential Sunset Terrace
Type of Impact Planned Action Study Area Redevelopment Subarea*
demand(ADD)is projected to be subarea is 0.05 to 0.09 mitlion
0.56 to 0.59 million gallons per gallons per day.The increase in
day within the Planned Action the peak daily demand (PDD)for
Study Area. this subarea is 0.09 to 0.16
The growth projected would million gallons per day.
increase the storage The primary significant impact of
requirements for the Highlands subarea development on the
435 and 565 pressure zones and water distribution system would
further increase the existing be related increased fire-flow
storage deficit in the Highlands requirements.These increased
435 pressure zone.In addition, fire flow requirements are
the development that is projected substantial and cannot be met by
for the Planned Action Study Area the existing distribution system
would increase the fire-flow serving the subarea. Water
requirements with more system pressure provided by the
multifamily development and 435 pressure zone within the
commercial development.The subarea is not adequate for
capacity of the existing water multistory development and/or
distribution system to meet these for development with fire
higher fire flows is inadequate if sprinkler systems. New water
system improvements are not mains extended from the higher-
constructed. pressure 565 pressure zone
system to service the subarea
would need to be phased to
accommodate growth.
Wastewater The increase in wastewater load The increase in wastewater flow
for the Planned Action Study Area in this subarea is 0.05 to 0.10
is 0.59 to 0.63 million gallons per million gallons per day.Similar to
day. the Planned Action Study Area,
This increase in wastewater load no impacts on the interceptors
is not expected to affect the that provide conveyance from the
wastewater interceptors that subarea are expected,but the
provide canveyance of increased sewer load could
wastewater from the Planned impact local sewers within the
Action Study Area but it could subarea.
increase surcharging that is
currently experienced and
observed within the Planned
Action Study Area.
Indirect and Cumulative Demands on utilities would Same as Planned Action Study
increase as a result of cumulative Area
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.
Planned ACtiOn OfdinanCe 58 Attachment B:Mitigation Document
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ATTACHMENT B
*The overall conclusions of the FEIS is expected to be similar for the Reevaluation Alternatives in 2014 and
2016,except that patterns of growth and demand may slight shift to have slightly greater need in the
Potential Sun set Terrace Redevelopment Area and slightly less in the overall neighborhood.
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 Water
To mitigate the current and projected water The mitigation measures that are required in the
storage deficit in the pressure zones that serve Potential Sunset Terrace Redevelopment Subarea
the study area,the City completed the are similar to those noted for the Planned Action
construction of the 4.2-million-gallon Hazen Study Area.The water storage deficit would be met
Reservoir in the Highlands 565 pressure zone with an increase in storage at the existing Highlands
in March 2009.The City also completed a water Reservoirs site,and fire-flow requirements would
distribution storage feasibility study to develop require the new 12-inch-diameter pipe loop
conceptual options and planning level cost throughout this subarea and realignment of the
estimates for expanding the storage capacity at Highlands 435 and Highlands 565 pressure zones.
two existing City-owned sites:the Highlands As noted previously,the City has recently installed a
Reservoirs site and the Mt.Olivet Tank site new 12-inch-diameter main for development
(HDR,Inc.2009).Financial strategies for the adjacent to this subarea,and as development occurs
planning,design,and construction of the in the subarea,the pipe network would need to be
storage-capacity expansion have not been extended to serve the development.A more detailed
determined at this time. discussion of needed system improvements is
To mitigate the fire-flow requirements for the provided in Attachment 2.
proposed level of development and
redevelopment within the Planned Action Study The NEPA Reevaluation/SEPA Addendum(October
Area,larger diameter(12-inch)piping is Z014)provides a description of water system
required throughout the Planned Action Study requirements for fire flow that are similar to the
Area to convey the higher fire-flow FEIS conclusions and that benefit from more
requirements.The new water mains will be specific master planning review.
looped for reliability and redundancy of service,
as required by City policies and water design �,yastewater Collection
standards.The larger mains will be installed The sewers within the Potential Sunset Terrace
within the dedicated right-of-way in a north-to- Redevelopment Subarea are also identified for
south and east-to-west grid-style water system. replacement based on age and condition in the
Additional mains within the development sites City's Long Range Wastewater Management Plan.
will also be required to provide water to gased on the increased wastewater load within the
hydrants and water meters,and should be potential Sunset Terrace Redevelopment Subarea,
looped within the development site around the local sewers may need to be replaced with
buitdings.To provide the water pressure
requirements for multistory buildings and to upsized pipe to manage the increased wastewater
support the pressure requirements for fire load from the subarea.A more detailed discussion of
sprinkler systems,the new water mains will be needed sewer system improvements is provided
connected to the higher-pressure Highlands Attachment 2.
The NEPA Reevaluation/SEPA Addendum(October
Planned Action Ordinance 59 Attachment 6:Mitigation Document
ORDINANCE N0. 5813
ATTACHMENT 6
Planned Action Study Area Potential Sunset Terrace Redevelopment Subarea
565 pressure zone.The options to address fire 2014)provides a description of sewer main
flow within the Planned Action Study Area are considerations that are similar to the FEIS
further described below. conclusions and that benefit from more specific
The Highlands 565 pressure zone typically has master planning review.
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 of the pressure zone and,therefore,
cannot meet both the pressure reyuirements
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
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 reGuired 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 of the 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-
Planned Action Ordinance 60 Attachment B:Mitigation Document
ORDINANCE N0. 5813
ATTACHMENT B
Planned Action Study Area Potential Sunset Terrace Redevelopment Subarea
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
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.
Pldnned ACtiOn OfdindnCe 61 Attachment B:Mitigation Document
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ATTACHMENT B
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 of the 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 62 Attathment B:Mitigation Dotument
ORDINANCE N0. 5813
ATTACHMENT B
to seek consultation regarding the eligibility of any further discovery for inclusion in the
National Register of Historic Places.
CONTACT INFORMATION
Rocale Timmons,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 Sheriffs 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 63 Attachment B:Mitigation Document
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ATTACHMENT B
Attachment 2: Figure 3.17-1 Potential Subarea Utility
Improvements and Phasing
Planned Action Ordinance 64 Attachment B:Mitigation Document
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ATTACHMENT B
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 of the
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.
See NEPA Reevaluation/SEPA Addendum(October 2014) for more recent considerations on
location of pipes and fire flow requirements.
Overview
Renton fire and building codes mandate minimum fire flows,durations,and pressure prior to
occupancy of new structures. In the case of the 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.
Pldnned ACtiOn OfdinanC2 65 Attachment B:Mitigation Document
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ATTACHMENT B
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 (aka Suncrest Homes)
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 10�h 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 lOth 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 of the new Piha site building and
extended southerly in Sunset Lane NE to NE lOth Street,then southeasterly in NE 10th Street to
connect back to the existing 12-inch line in Sunset Boulevard NE. (Segment P1 on Figure 3.17-1)
This new looped water main would be able to deliver about 5,000 gpm.
Planned ACtiOn Ordinance 66 Attachment B:Mitigation Document
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ATTACHMENT B
A temporary route(which is not the preferred option)to provide 5,000 gpm to the same site would
be to extend two paralle112-inch water lines in NE lOth 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 10�h 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 of the 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
lOth 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 of the 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 67 attachment s:nnitigation oocument
ORDINANCE N0. 5813
ATTACHMENT B
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 of the 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 mil(ion.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.
See NEPA Reevaluation/SEPA Addendum(October 2014)for more recent considerations on
location of sewer mains and the potential for reuse of existing lines or rerouting requirements.
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
Planned Action Ordinance 68 Attachment B:Mitigation Document
ORDINANCE N0. 5813
ATTACHMENT B
the Ciry as part of the overall Sunset Terrace redevelopment to accommodate forecast flows.
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 69 Attachment B:Mitigation Dotument
ORDINANCE N0. 5813
ATTACHMENT B
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Planned Action Ordinance �� Attachment B:Mitigation Document
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RENTON SUNSET AREA MSP EXHIgIT 9