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HomeMy WebLinkAboutEx03_Sunset_Area_Planned_Action_Ordinance_(ORD_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; 1 Exhibit 3 DocuSign Envelope ID: E4190986-0960-4AF4-9156-D3C7AC5C2491 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 2 DocuSign Envelope ID: E4190986-0960-4AF4-9156-D3C7AC5C2491 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 3 DocuSign Envelope ID: E4190986-0960-4AF4-9156-D3C7AC5C2491 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 4 DocuSign Envelope ID: E4190986-0960-4AF4-9156-D3C7AC5C2491 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 5 DocuSign Envelope ID: E4190986-0960-4AF4-9156-D3C7AC5C2491 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. 6 DocuSign Envelope ID: E4190986-0960-4AF4-9156-D3C7AC5C2491 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 7 DocuSign Envelope ID: E4190986-0960-4AF4-9156-D3C7AC5C2491 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- 8 DocuSign Envelope ID: E4190986-0960-4AF4-9156-D3C7AC5C2491 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. 9 DocuSign Envelope ID: E4190986-0960-4AF4-9156-D3C7AC5C2491 ORDINANCE N0. 5813 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: 10 DocuSign Envelope ID: E4190986-0960-4AF4-9156-D3C7AC5C2491 ORDINANCE N0. 5813 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 11 DocuSign Envelope ID: E4190986-0960-4AF4-9156-D3C7AC5C2491 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. Denis Law, Mayor Approved as to form: t'—_ 1``',::,,:"" s,;;; fr t;,r orU ; Lawrence J. Warren, City Attorney y '` v, p u Date of Publication: 8/12/2016 (summary) c,;. ' ORD.1926:6/13/16:scr 12 DocuSign Envelope ID: E4190986-0960-4AF4-9156-D3C7AC5C2491 ORDINANCE N0. 5813 ATTACH M ENT A s E j ` rt 4 City Limits ti: i Ui dMI.ir ' ..` i . 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' ' ., p rr1 '* ` q": 4 y n I * S/ g a `,,. -g'' `. ;k: m," ai NE•TH P"=`' ;a;"S'' Attachment A Planned Action Study Area TEe,AnorfA Sunset Area Community Planned Action Final NEPA/SEPA EIS DocuSign Envelope ID: E4190986-0960-4AF4-9156-D3C7AC5C2491 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 DocuSign Envelope ID: E4190986-0960-4AF4-9156-D3C7AC5C2491 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 DocuSign Envelope ID: E4190986-0960-4AF4-9156-D3C7AC5C2491 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 DocuSign Envelope ID: E4190986-0960-4AF4-9156-D3C7AC5C2491 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 DocuSign Envelope ID: E4190986-0960-4AF4-9156-D3C7AC5C2491 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 DocuSign Envelope ID: E4190986-0960-4AF4-9156-D3C7AC5C2491 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 DocuSign Envelope ID: E4190986-0960-4AF4-9156-D3C7AC5C2491 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 DocuSign Envelope ID: E4190986-0960-4AF4-9156-D3C7AC5C2491 ORDINANCE N0. 5813 ATTACHMENT B land Area Total and Area Total Commerci Dwelling Dwelling al5quareLocationacres): 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 ISiteA)-Developed Swap Sites:Kirkland Avenue(B)-Developed,Library I 2.18 43 I 2.18 43 ISiteforFutureSurplus(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 DocuSign Envelope ID: E4190986-0960-4AF4-9156-D3C7AC5C2491 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 DocuSign Envelope ID: E4190986-0960-4AF4-9156-D3C7AC5C2491 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 DocuSign Envelope ID: E4190986-0960-4AF4-9156-D3C7AC5C2491 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 DocuSign Envelope ID: E4190986-0960-4AF4-9156-D3C7AC5C2491 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 DocuSign Envelope ID: E4190986-0960-4AF4-9156-D3C7AC5C2491 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 DocuSign Envelope ID: E4190986-0960-4AF4-9156-D3C7AC5C2491 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 DocuSign Envelope ID: E4190986-0960-4AF4-9156-D3C7AC5C2491 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 DocuSign Envelope ID: E4190986-0960-4AF4-9156-D3C7AC5C2491 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 DocuSign Envelope ID: E4190986-0960-4AF4-9156-D3C7AC5C2491 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 DocuSign Envelope ID: E4190986-0960-4AF4-9156-D3C7AC5C2491 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 DocuSign Envelope ID: E4190986-0960-4AF4-9156-D3C7AC5C2491 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 DocuSign Envelope ID: E4190986-0960-4AF4-9156-D3C7AC5C2491 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 DocuSign Envelope ID: E4190986-0960-4AF4-9156-D3C7AC5C2491 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 DocuSign Envelope ID: E4190986-0960-4AF4-9156-D3C7AC5C2491 ORDINANCE NC}. 5$13 ATfACNMENT B Potential Sunset Terrace Type of Impact Planned Action Study Area Redevelopment Subarea kill and predation by pets,and reduced wildlife diversity due ta increases in opportunistic species such as starlings,crows, and rats.These indirect impacts can be expected to result in reduced numbers,vigor,and diversity of plant and wildli e species. The stormwater commitments incarporated in Planned Action Alternatives would be sufficient ta avoid substantial impacts on aquatic habitats and fish. Cumulative No impact No impact Unavoidable Adverse Impacts No significant unavoidable adverse impacts would occur for plants and animals under any alternative. Mitigation Measures With implementation of propased stormwater features or standards,no mitigatian is required. Nexus City of Renton Comprehensive Plan RMC 4-6-030 Drainage(Surface Water) Standards RMC 4-3-050 Critical Areas Regulations RMC 4-4-030 Develapment Guidelines and Regulations-General RMC 4-4-130 Tree Retention and Land Clearing Regulations 5. Energy Significant Impacts Table 9. Energy Significant Impacts Potential Sunset Terrace Type of Impact Planned Action Study Area Redevelopment Subarea Construction During construction,energy Same as Planned Action Study Area would be consumed by dernolition and reconstruction activities.These activities would include the manufacture of construction materials,transport Platlned ActiOn Ordifldn[Q 2z Attachment B:Mitigation Document DocuSign Envelope ID: E4190986-0960-4AF4-9156-D3C7AC5C2491 CJRDINANCE N4. 5813 ATTACHMENT B Patential Sunset Terrace Type of Impact Planned Action Study Area Redevelapment Subarea of construction materials to and from the construction site,and operation af machinery during demolitian and construction. Operations Energy tJsage:Study Area The annuai energy usage is The annual energy usage is and Subarea estimated at 255,845 ta 275,529 estimated at 22,33$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 DocuSign Envelope ID: E4190986-0960-4AF4-9156-D3C7AC5C2491 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 DocuSign Envelope ID: E4190986-0960-4AF4-9156-D3C7AC5C2491 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 DocuSign Envelope ID: E4190986-0960-4AF4-9156-D3C7AC5C2491 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 fiom 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 DocuSign Envelope ID: E4190986-0960-4AF4-9156-D3C7AC5C2491 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 DocuSign Envelope ID: E4190986-0960-4AF4-9156-D3C7AC5C2491 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 DocuSign Envelope ID: E4190986-0960-4AF4-9156-D3C7AC5C2491 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 DocuSign Envelope ID: E4190986-0960-4AF4-9156-D3C7AC5C2491 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 DocuSign Envelope ID: E4190986-0960-4AF4-9156-D3C7AC5C2491 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 DocuSign Envelope ID: E4190986-0960-4AF4-9156-D3C7AC5C2491 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 intensiveprocess,the City should amend its Comprehensive non-residential development along or nearPlan'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 DocuSign Envelope ID: E4190986-0960-4AF4-9156-D3C7AC5C2491 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 DocuSign Envelope ID: E4190986-0960-4AF4-9156-D3C7AC5C2491 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 DocuSign Envelope ID: E4190986-0960-4AF4-9156-D3C7AC5C2491 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 DocuSign Envelope ID: E4190986-0960-4AF4-9156-D3C7AC5C2491 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 DocuSign Envelope ID: E4190986-0960-4AF4-9156-D3C7AC5C2491 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 DocuSign Envelope ID: E4190986-0960-4AF4-9156-D3C7AC5C2491 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 DocuSign Envelope ID: E4190986-0960-4AF4-9156-D3C7AC5C2491 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 DocuSign Envelope ID: E4190986-0960-4AF4-9156-D3C7AC5C2491 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 DocuSign Envelope ID: E4190986-0960-4AF4-9156-D3C7AC5C2491 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 DocuSign Envelope ID: E4190986-0960-4AF4-9156-D3C7AC5C2491 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 DocuSign Envelope ID: E4190986-0960-4AF4-9156-D3C7AC5C2491 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 DocuSign Envelope ID: E4190986-0960-4AF4-9156-D3C7AC5C2491 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 DocuSign Envelope ID: E4190986-0960-4AF4-9156-D3C7AC5C2491 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 DocuSign Envelope ID: E4190986-0960-4AF4-9156-D3C7AC5C2491 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 DocuSign Envelope ID: E4190986-0960-4AF4-9156-D3C7AC5C2491 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 DocuSign Envelope ID: E4190986-0960-4AF4-9156-D3C7AC5C2491 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 DocuSign Envelope ID: E4190986-0960-4AF4-9156-D3C7AC5C2491 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 DocuSign Envelope ID: E4190986-0960-4AF4-9156-D3C7AC5C2491 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 DocuSign Envelope ID: E4190986-0960-4AF4-9156-D3C7AC5C2491 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 DocuSign Envelope ID: E4190986-0960-4AF4-9156-D3C7AC5C2491 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 DocuSign Envelope ID: E4190986-0960-4AF4-9156-D3C7AC5C2491 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 DocuSign Envelope ID: E4190986-0960-4AF4-9156-D3C7AC5C2491 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 orCity. proposed. Planned Action applicants shall design street Health Carelayouts,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 DocuSign Envelope ID: E4190986-0960-4AF4-9156-D3C7AC5C2491 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 DocuSign Envelope ID: E4190986-0960-4AF4-9156-D3C7AC5C2491 ORDINANCE N0. 5813 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 DocuSign Envelope ID: E4190986-0960-4AF4-9156-D3C7AC5C2491 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 DocuSign Envelope ID: E4190986-0960-4AF4-9156-D3C7AC5C2491 ORDINANCE N0. 5813 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 DocuSign Envelope ID: E4190986-0960-4AF4-9156-D3C7AC5C2491 ORDINANCE N0. 5813 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 Terracewithinthededicatedright-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 theAdditionalmainswithinthedevelopmentsites City's Long Range Wastewater Management Plan.will also be required to provide water to gased on the increased wastewater load within thehydrantsandwatermeters,and should be potential Sunset Terrace Redevelopment Subarea,looped within the development site around the local sewers may need to be replaced withbuitdings.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 DocuSign Envelope ID: E4190986-0960-4AF4-9156-D3C7AC5C2491 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 DocuSign Envelope ID: E4190986-0960-4AF4-9156-D3C7AC5C2491 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 DocuSign Envelope ID: E4190986-0960-4AF4-9156-D3C7AC5C2491 ORDINANCE N0. 5813 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 DocuSign Envelope ID: E4190986-0960-4AF4-9156-D3C7AC5C2491 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 DocuSign Envelope ID: E4190986-0960-4AF4-9156-D3C7AC5C2491 ORDINANCE N0. 5813 ATTACHMENT B Attachment 2: Figure 3.17-1 Potential Subarea Utility Improvements and Phasing Planned Action Ordinance 64 Attachment B:Mitigation Document DocuSign Envelope ID: E4190986-0960-4AF4-9156-D3C7AC5C2491 ORDINANCE N0. 5813 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 DocuSign Envelope ID: E4190986-0960-4AF4-9156-D3C7AC5C2491 ORDINANCE N0. 5813 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 DocuSign Envelope ID: E4190986-0960-4AF4-9156-D3C7AC5C2491 ORDINANCE N0. 5813 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 DocuSign Envelope ID: E4190986-0960-4AF4-9156-D3C7AC5C2491 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 DocuSign Envelope ID: E4190986-0960-4AF4-9156-D3C7AC5C2491 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. 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