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Appendix A
CIRCULATION LIST
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APPENDIX A: CIRCULATION LIST
STATE AGENCIES AND GOVERNMENT ORGANIZATIONS
Secretary of Energy and Environmental Affairs
Attn: MEPA Office
100 Cambridge Street, Suite 900
Boston, MA 02114
DEP Commissioners Office
One Winter Street
Boston, MA 02108
DEP Northeast Regional Office
Attn: Environmental Reviewer
205B Lowell Street
Wilmington, MA 01887
DEP, Waterways Program
Attn: Ben Lynch
One Winter Street
Boston, MA 02108
Brona Simon, Executive Director
Massachusetts Historical Commission
220 Morrissey Boulevard
Boston, MA 02125
MA Department of Transportation
Public Private Development Unit
Ten Park Plaza
Boston, MA 02116-3969
MA Department of Transportation Highway Division District #4
Attn: Environmental Reviewer
519 Appleton Street
Arlington, MA 02476
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Metropolitan Area Planning Council
60 Temple Place/6th floor
Boston, MA 02111
Coastal Zone Management
Attn: Project Review Coordinator
251 Causeway Street, Suite 800
Boston, MA 02114
MA Department of Conservation & Recreation (DCR)
Division of Urban Parks
Attn: MEPA Coordinator
251 Causeway St. Suite 600
Boston MA 02114
MA Division of Marine Fisheries
Attn: Environmental Reviewer
251 Causeway Street, Suite 400
Boston, MA 02114
Massachusetts Department of Energy Resources
100 Cambridge Street, Suite 1020
Boston, MA 02114
Massachusetts Water Resources AuthorityAttn: MEPA Coordinator
100 First Avenue
Charlestown Navy Yard
Boston, MA 02129
Massachusetts Bay Transportation Authority
Attn: MEPA Coordinator
10 Park Plaza, 6th Floor
Boston, MA 02116-3966EverettEverett
Massachusetts Gaming Commission
84 State Street
10th Floor
Boston, MA 02109
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CITY OF EVERETT
Office of the Mayor
Attn: Melissa Murphy Rodrigues
Chief of StaffEverett City Hall
484 Broadway, Room 31
Everett, MA 02149
Everett Board of Alderman
Attn: Joseph McGonagle
Alderman At-Large
46 Corey Street
Everett, MA 02149
Everett Dept. of Planning & Development
Attn: James Errickson
Executive Director
Everett City Hall
484 Broadway, Room 25
Everett, MA 02149
Everett Conservation Commission
Attn: Jon Norton
Chairman
Everett City Hall
484 Broadway, Room 40
Everett, MA 02149
Everett Public Health Department
Attn: Roberto Santamaria
Everett City Hall
484 Broadway, Room 20
Everett, MA 02149
Everett Department of City Services
Attn: Peter Pietrantonio
Everett City Hall
484 Broadway
Everett, MA 02149
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OTHER MUNICIPALITIES
Boston Redevelopment Authority
Attn: MEPA Reviewer
1 City Hall SquareBoston, MA 02201
City of Chelsea
Attn: City Managers Office
Chelsea City Hall
500 Broadway
Chelsea, MA 02150
City of Medford
Planning Department85 George P. Hassett Drive
Medford, MA 02155
City of Somerville
Planning Department
Somerville City Hall
93 Highland Avenue
Somerville, MA 02143
ELECTED OFFICIALS
Senator Sal N. DiDomenico
State House Room 218
Boston, MA 02133
Representative Wayne A. Matewsky
State House Room 540
Boston, MA 02133
Representative Carl M. Sciortino, Jr
State House Room 540
Boston, MA 02133
Representative Marjorie Decker
State House Room 437
Boston, MA 02133
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Representative David M. Rogers
State House Room 134
Boston, MA 02133
Representative Timothy J. Toomey Jr
State House Room 238
Boston, MA 02133
Representative Eugene L. OFlaherty
State House Room 136
Boston, MA 02133
Senator Anthony Petruccelli
State House Room 424
Boston, MA 02133
Representative Carlo P. Basile
State House Room 174
Boston, MA 02133
Representative Christopher G. Fallon
State House Room 236
Boston, MA 02133
Representative Paul A. BrodeurState House Room 43
Boston, MA 02133
Senator Katherine Clark
State House Room 410
Boston, MA 02133
Representative Carl M. Sciortino, Jr
State House Room 472
Boston, MA 02133
Representative Denise Provost
State House Room 473B
Boston, MA 02133
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Congressman Michael E. Capuano
110 First Street
Cambridge, MA 02141
Congressman Ed Markey
5 High Street, Suite 101
Medford, MA 02155
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Appendix B
TRANSPORTATION TECHNICALAPPENDICES
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Appendix C
PEDESTRIAN WIND ASSESSMENT
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Novus Ref.: 13-0037
UniversityofGuelphResearchPark
150ResearchLane,Suite105
Guelph,ON,N1G4T2
226.706.8080 | www.novusenv.com
Date: May21,2013
To: FortPoint Associates, Inc.
Re: PedestrianWindAssessment
WynnEverett
Everett,MA
NovusProject#130037
NovusTeam:
SeniorSpecialist: BillF.Waechter,C.E.T.
Principal/Specialist: R.L.ScottPenton,P.Eng.
Comp
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1.0 INTRODUCTION
NovusEnvironmentalInc.(Novus)wasretainedbyFourPointAssociates,
Inc. toconductaPedestrianWindAssessmentfortheplannedWynn
EverettdevelopmentlocatedonBroadwayinEverett,Massachusetts.
1.1 NatureoftheExistingSubjectLands
ThesubjectpropertyismainlyvacantlandlocatedinEverett,MA,tothe
westofBroadwayandimmediatelynorthofMysticRiver.Thepropertyis
alsoincludesMysticRivertidalflats. Anaerialviewtolocatetheproject
siteisprovidedinFigure1.
1.2 ProposedDevelopment
Theproposeddevelopmentisamixedusecommercialandretailbuildingwithcomponentsrangingfromoneto24storeys.Developmenthighlights
include:
Asinglestoreyretailcomponenttothesouth.
A300hoteltowerwithmainentrancelocatedinthesouthelevation.
1and2storeyballroom,conventionandcasinocomponentslocatedon
thenorthofthehotel.
6Levelemployeeparkinggarageonthenorthsideofthecasino.
AriverwalktrailalongtheshoreandtidalflatsofMysticRiver.
Watertaxiandguestdockfacilities.
Anamphitheatreandgazebolocatedsouthoftheretailcomponent.
Aroof
garden
terrace
east
of
the
ballroom
roof
and
aLevel
1terrace
at
thesoutheastendoftheretailsection.
Aconceptualsiteplanisshownin Figure2. Imagesofanarchitectural
scalemodelareprovidedinFigure3.Figure 1: Context Plan Showing D
Aerial Image Credit: Vanasse
MEDFORD
SOMMERVILLE
BOSTON
GATEWAY
CENTER
GATEWAY
CENTER
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Figure 2: Conceptual Site Plan
AmphitheatrePorteCochere
Dropoffand
MainEntrance
Retail
River
Walk
Hotel
Tower Roof
Garden
Entrances
CarWash
CasinoAreas
Grand
Ballroom
Level1
Terrace
Employee
ParkingGarage
MysticRiver
TidalFlats
WaterTaxiand
Guest
Docks
BuildingServi
Areas
Scale(approx.)
0 3060 120 240feet
Gazebo
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Figure 3: Architectural Model Views Looking Northward
Hote
Retail
Amphitheatre
Area
RiverWalkPath
PorteCochereDropoff
andMainEntrance
Dock
RiverWalkPath
Gazebo
WinterGarden
Skylights
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1.3 NatureoftheSurroundings
ThesubjectpropertyislocatedwestofBroadway,andSoudanAvenueto
thesouth. Thesiteiscurrentlyoccupiedbytwoexisting14storey
apartmentbuildings.
An
aerial
view
to
locate
the
project
site
is
provided
in
Figure4.
Thesubjectpropertyissituatedinanareaofmixedusebuildingsthat
primarilyincludesindustrial,commercialandretailbuildings.AnMBTA
commuterraillineislocatedalongthewestpropertyedgewithGateway
Centerscommercial/retailbuildingslocatedfurtherwest.MysticRiverand
itstidalflatsaretothesouthandsouthwest.Commercialuselargelyexists
totheeastalongBroadway,withanincreaseddensityoflowrise
residentialhomesfoundtothenortheastaroundLyndeandBowStreets.
1.4
Areasof
Interest
for
Pedestrian
Wind
Comfort
Inadditiontopublicsidewalksonnearbystreets,locationsofinterestfor
theassessmentofpedestrianwindcomfortareshowninFigures2,3and
4 andinclude:
1. PublictransitstopsonBroadwaynearDexterSt,oppositeMysticSt
andonBroadway,northofLyndeSt.
2. PublicopenspacebetweenBroadwayandBowSt,nearLyndeSt.
3. PorteCocheredropoffandmainentrance.
4. Retailentrances.
5. Amphitheatre
and
gazebo.6. Level1amenityterracesintheretailcomponent.
7. Riverwalk.
8. BallroomGardenTerrace.
9. Watertaxiandguestdockfacilities. Figure 4: Development Site AreaAerial Image Credit: Vanasse
BOSTON
GATEWAY
CENTER
GATEWAY
CENTER
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2.0 APPROACH
Windconditionsforareasofinterestw
commerciallyavailable
computational
producedbyMeteodynInc. Thesoftw
comfortanalysisandwasusedtopred
aroundthedevelopmentsite,andalso
windyareas.
Aviewofthe3Dmassingmodelusedi
isshowninFigure5. Theentire3Dspa
filledwithathreedimensionalgrid. T
windspeedateachoneofthe3Dgrid
eachtestdirectionisadjustedtoreflec
windcharacteristicsencounteredarou
Windflowswerepredictedwiththepr
eachoftheeightcompassquadrants(
WSW,andSSWdirections.TheCFDpre
directionsandgridpointswerethenco
forthisregiontopredicttheoccurrenc
realm,andtocompareagainstwindcr
tunneltestingofaphysicalscalemode
accurateanalysismethodology. Nonet
tooltoidentifypotentialwindissuesa
Theanalysis
of
wind
conditions
was
un
summerandwinter. Resultsareprese
conditionsalongmajorstreetsandthe
1.4.Thecomfortcriteriaarebasedon
thatinfluence apersonsoverallther
humidity,windchill,shade,etc.)arenoFigure 5: Computer Wind Analysis 3D Massing Model
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3.0 PEDESTRIANWINDCRITERIA
Thewindcomfortconditionsarediscussedintermsofbeingacceptable
forcertain
pedestrian
activities
and
are
based
on
wind
force.
Pedestrian
activity,windchill,clothing,humidityandexposuretodirectsun,for
example,allaffectpedestrian(thermal)comfort;however,these
influencesarenotconsideredinwindforcecriteria.
Thecriteriaforwindcomfortandsafetyusedinthisassessmentarebased
onthosedevelopedattheBoundaryLayerWindTunnelLabofthe
UniversityofWesternOntario,togetherwithbuildingofficialsinLondon
England.TheyarebasedbroadlyontheBeaufortscaleandonprevious
criteriathatwereoriginallydevelopedbyDavenport. Thecriteriaareused
bytheAlanG.DavenportWindEngineeringGroupBoundaryLayerWind
TunnelLaboratoryforpedestrianwindstudyprojectslocatedaroundthe
globe.
Adetailed
description
of
the
criteria
and
history
of
its
development
iscontainedinthereferences.
Thecomfortcriteria,whicharebasedoncertainpredictedhourlymean
windspeedsbeingexceeded5%ofthetime,aresummarizedinthetable.
Veryroughly,thisisequivalenttoastormeventofseveralhoursduration
occurringaboutonceperweek.
Thecriterionforwindsafetyinthetableisbasedonhourlymeanwind
speedsthatareexceeded0.1%ofthetime(approximatelyninehoursper
year).Whenmorethanthree,3houreventsarepredictedtoexceedthe
FairWeather
Area
criterion
on
an
annual
basis,
wind
mitigation
measures
arethenadvised,especiallyforfrequentlyaccessedareas.
Activity
SafetyCriterionMeanW
SpeedExceeded
3TimesperYear(3x3
Any[1] 45mph 20m
Activity
ComfortRangesforM
WindSpeedExceeded5
theTime
Sitting 0to9mph 0to4
Standing 0to13mph 0to6
Leisurely
Walking0to18mph 0to8
Fast
Walking0to22mph 0to10
Notes:[1] EquivalenttotheFairWeatherLocatio
appliestofrequentlyaccessedareas.
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4.0 WINDCLIMATE
WinddatarecordedatBostonLoganAirportforthe
periodof
1981
2011
were
obtained
and
analysed
tocreateawindclimatemodelforthefourseasons.
Annualandseasonalwinddistributiondiagrams
(windroses)areshowninFigure6. These
diagramsillustratethepercentageoftimewind
blowsfromthe16maincompassdirections. Of
maininterestarethelongestpeaksthatidentifythe
mostfrequentlyoccurringwinddirections. The
annualwindroseindicatesthatwindapproaching
fromthewestnorthwest,southwestandnorthwest
directionsaremostprevalent.Thefourseasonal
windrosesreadilyshowhowprevailingwindsshift
directionduring
the
year.
Thedirectionsfromwhichstrongerwinds(e.g.,
>30mph)approacharealsoofinterestastheyhave
ahigherpotentialofcreatingproblematicwind
conditions,dependinguponsiteexposureandthe
buildingconfigurations. ThewindrosesinFigure6
alsoidentifythedirectionalfrequencyofthese
strongerwinds,asindicatedinthefigureslegend
colourkey. Onanannualbasis,strongwindsoccur
mostfrequentlyfromthewestnorthwestand
northwest
directions.
All
wind
speeds
and
directions
wereincludedinthewindclimatemodel.
AnnualWinds(Calms:2.1%)
WinterWinds(Jan Mar)(Calms:1.7%)
SummerWinds(Jul Sept)(Calms:2.5%)
WINDSPEED
(mph)
>30
0.4 30
Figure 6: Wind Rose for Boston Logan Airport (1981
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5.0 RESULTS
Figures7through10presentgraphicalimagesofthepredictedwind
comfortconditions,forsummerandwintermonthswiththeproposed
developmentpresent. Areaswherewindconditionsarepredictedtobe
suitableforvarioustypesofactivities notedinthelegendareshownin
theformofcolorcontours. Arangeofhoteltowerheightsbetween300
feetand400feetisbeingconsideredatthisconceptualdesignstage.
Figures11and12 illustratethepredictedwindspeedsatthepedestrian
levelforwindblowingfromtheprevailingsouthwestwinddirectionfora
300toweranda400hoteltower,respectively. Thesouthwestdirection
bestillustratestheredirectingeffectofthetowershapeonaprevailing
winddirection.Commentspertainingtothepotentialeffectofthetower
heightonpedestrianwindsareprovided.
Wind
Safety
Thewindsafetycriterionwaspredictedtobemetonandaroundthe
proposedWynnEverettdevelopment,includingthepublicrooftop
amenityspaces.
OffsiteAreasofInterest
AlongAlfordStreetandBroadway,windconditionssuitableforleisurely
walkingduringthesummermonths,andleisurelywalkingduringthe
winter,aredesired. ForthepublicopenspaceonBroadway,nearLynde
andBowStreets,windsuitableforsittinginthesummerarepreferred,
whilewindssuitableforstandingareconsideredidealforthetransitstops
onayear
round
basis.
ThelargesetbackofthehoteltowerfromAlfordandBroadway,plusits
streamlinedshapeandorientationrelativetotheprevailingWNWwinds,
resultsinaminimaleffectonwindconditionsinthepublicrealm. Figure 7: Predicted Wind Comfort
N
Sitting
Standing
Leisurely Walking
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OffsiteAreasofInterest(cont.)
Windcomfortconditionssuitablefo
anticipatedatalllocationsduringth
arearated
as
leisurely
walking
occu
winter(Figure8),whileallotheroff
comfortableforsittingorstanding.
Thewindconditionsinalloffsitea
OnSiteAreasofInterest
ForthePorteCocheredropoff,maine
windscomfortableforstandingwould
Patronsoftheamphitheatrewouldwe
suitableforsittingduringthesummer,
Level1amenity
terrace
winds
rated
as
fortheoperationalseasons. Windcon
wouldbeappropriatefortheRiverWa
suitableforstandinginthedockareas
Areviewofthepredictedsummertime
foralltheabovesitefeaturesindicates
eithersittingorstanding. Thesecondi
interest,butareabovewhatisdesired
landscapingfeaturescanbedeveloped
however,patronswouldwelcomecoo
Theuseofportableorretractable form
withsoft
landscaping
(trees,
shrubs,
et
landscapeplantoprovidethedesired
comfort.
Figure 8: Predicted Wind Comfort Zones At Grade Winter
N
Fast Walking
Uncomfortable
Unsafe
Sitting
Standing
Leisurely Walking
N
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Figure 9: Predicted Wind Comfort Zones on Roof-LevelBallroom Garden Terrace (EL 500)
Sitting
Standing
Leisurely Wa
KeyPlan
Hotel
Tower
RoofGarden
Hotel
Tower
Summer Winter
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Figure 10: 300 Tall Hotel Mean Surface Wind SpeedsWind From Southwest
Figure 11: 400 Tall Hotel ToweWind From Southwe
Low
High
Relative
Wind
Speed
300
Hotel
Tower
Low
High
Relative
Wind
Speed
4
H
T
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6.0 MICROCLIMATECONSIDERATIONSFOROUTDOORSPACEPLANNING
Thefocus
of
this
study
was
on
wind
speed
(force),
but
various
other
factorsalsoinfluenceapersonscomfortandtheiroverallenjoymentof
outdoorspaces. Thisisespeciallyrelevantinareasintendedforextended
periodsofuse.Climateparameters,suchasdirectsunexposure,
temperature,humidity,plusclothingoractivity(i.e.,metabolicrate)are
otherissuesthatcontributetoapersonsthermalcomfort.
Thesiteorientationissuchthatmanyoftheoutdooramenityspaceswill
beexposedtodirectsunlightinthesummerthroughagoodpartofthe
day.Thegraphoftemperatures(Figure12) indicatesanaveragemaximum
dailytemperatureof82Finthesummer.Mostpatronsofthe
Amphitheater,
for
example,
will
require
shade
in
order
to
be
thermally
comfortable. Lightcoloursurfacetreatmentscanalsohelpreducethermal
discomfort,butmayaddtoglarediscomfort. Increaseduseofgrassinlieu
ofhardpavingmaterialscanimproveuponlocalcooling.
Otherinfluences,suchaswinddrivenrain,areseldomconsideredwhen
planningoutdooramenityareasandbuildingoverhangsandcanopies.
TwowindrosesforBostonLoganAirport(Figure13) presentthe
frequencydistributionofwindbydirectionduringthesummer. However,
thewindroseontherightshowsthedominantdirectionswhenrainfall
occurssimultaneously. Thestrongestwindswithrainfalleventsoccur
mostfrequentlyfromthenortheast. Bostonaverageseightdaysper
monthwith
rainfall
>1mm.
Data
analysis
such
as
these
can
help
guide
the
planningofprotectivecanopiesandscreeningmaterial.
Theaboveexamplesintroduceotherconsiderationsbeyondwindforce
alone,thatcanguidethedesignofoutdooramenityspaces toenhance
theoverallenjoymentbypedestriansandamenityspacepatrons.
Figure 12: Boston Logan AP - M
Wind Without Rain
Figure 13: Boston Logan AP - Su
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Blocken,B.,andJ.Carmeliet(2004)PedestrianWindEnvironmentaround
Buildings:Literature
Review
and
Practical
Examples
JournalofThermalEnvironmentandBuildingScience,28(2).
Cochran,L.(2004)DesignFeaturestoChangeand/orAmeliorate
PedestrianWindConditionsASCEStructuresConference2004.
Davenport,A.G.(1972)"AnApproachtoHumanComfortCriteriafor
EnvironmentalWindConditions",ColloquiumonBuildingClimatology,Stockholm,September1972.
Durgin,F.H.(1997)Pedestrianlevelwindcriteriausingtheequivalent
averageJournalofWindEngineeringandIndustrialAerodynamics66.Isyumov,N.andDavenport,A.G.,(1977)TheGroundLevelWind
EnvironmentinBuiltupAreas,Proc.of4thInt.Conf.onWindEffectson
BuildingsandStructures,London,England,Sept.1975,Cambridge
UniversityPress,1977.
Isyumov,N.,(1978)StudiesofthePedestrianLevelWindEnvironmentat
theBoundaryLayerWindTunnelLaboratoryoftheUniversityofWestern
Ontario,Jrnl.IndustrialAerodynamics,Vol.3,187200,1978.Irwin,P.A.(2004)OverviewofASCEReportonOutdoorComfortAround
Buildings:Assessment
and
Methods
of
Control
ASCE
Structures
Conference2004.
Kapoor,V.,Page,C.,Stefanowicz,P.,Li
PedestrianLevel
Wind
Studies
to
Aid
Development,StructuresCongressAbEngineers,1990.
Koss,H.H.(2006)Ondifferencesand
JournalofWindEngineeringandIndusSoligo,M.J.,P.A.,Irwin,C.J.Williams,G
ComprehensiveAssessmentofPedest
EffectsJournalofWindEngineeringaStathopoulos,T.,H.WuandC.Bedard
Buildings:A
Knowledge
Based
Approac
IndustrialAerodynamics 41/44.Stathopoulos,T.,andH.Wu(1995)G
windsinbuiltupregionsJournalofWAerodynamics 54/55.
Wu,H.,C.J.Williams,H.A.BakerandW
basedDesktopAnalysisofPedestrian
Conference2004.
8.0 REFERENCES
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Appendix D
EVERETT CENTRAL WATERFRONT
MUNICIPAL HARBOR PLAN
NOTICE TO PROCEED
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May 3, 2013
James Errickson, Executive DirectorCity of EverettDepartment of Planning and Development484 Broadway, Room 25Everett, MA 02149
Dear Mr. Errickson:
Pursuant to 301 CMR 23.03, the Municipal Harbor Plan (MHP) Regulations, the City ofEverett submitted a Request for Notice to Proceed (RNTP) for a state approved MHP for theEverett Central Waterfront in February 2013. Notice of this request was published in theEnvironmental Monitoron March 6, 2013 and public comments were accepted for a thirty-dayperiod ending on April 5, 2013, during which time my office received twelve (12) comment lettersfrom interested parties, copies of which were forwarded to the City of Everett and by request to anyinterested parties. All procedural requirements of 301 CMR 23.03 have, therefore, been met. Basedon a review of the Citys request, I am pleased to issue the following Notice to Proceed for the Cityof Everett Central Waterfront Municipal Harbor Plan.
Overview
The MHP Regulations (301 CMR 23.00) establish a voluntary procedure by whichmunicipalities may obtain approval of MHPs from the Secretary, promoting long-term,comprehensive, municipally-based planning of harbors and other waterways that fully incorporatesstate policies governing stewardship of trust lands. Additionally, approved plans guide and assist theMassachusetts Department of Environmental Protection (MassDEP) Wetlands and WaterwaysDivision in making regulatory decisions pursuant to MGL Chapter 91 and the WaterwaysRegulations (310 CMR 9.00) that are responsive to harbor specific conditions and other local andregional circumstances. As promulgated, the Waterways Regulations provide a uniform statewideframework for regulating tidelands projects and developments. Municipal Harbor Plans presentcommunities with an opportunity to adopt a vision that modifies these uniform standards throughthe amplification of the discretionary requirements of the Waterways Regulations or through theadoption of provisions, which if approved, are intended to substitute for the minimum uselimitations or numerical standards of 310 CMR 9.00. While the Citys plan may embody the visionfor the development of its waterfront, the scope of an MHP is generally limited to the modificationof certain Chapter 91 standards to fulfill the local planning goals. Project specific issues such astraffic and broader environmental impacts will be described, analyzed, and assessed during anyrequisite MEPA review.
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I. Municipal Harbor Planning Area
The harbor planning area identified in the RNTP includes approximately 155 acres of landroughly bounded by the Malden and Mystic Rivers to the west, Route 16 to the north, the MBTAtracks to the east, and the City boundary along Route 99 to the south. The harbor planning area islimited to land within the City of Everett and is not located in the Mystic River Designated Port
Area. The harbor planning area consists of sites owned by four major property owners;approximately 51 acres of parkland and roadways owned by the Department of Conservation andRecreation; approximately 73 areas of commercial buildings (Gateway Mall) and parking owned byDiversified Realty; 30 acres of vacant, former industrial land owned by FBT Everett Realty LLC, c/othe Denunzio Group LLC; and the MBTA commuter rail line.
According to the RNTP, approximately 75 acres of the harbor planning area consists offilled tidelands subject to Chapter 91 jurisdiction. Pursuant to 301 CMR 23.02, the harbor planningarea includes all areas that are relevant to the functional use and management of the waterwaysegment in question. Functional use refers to those activities that have the potential to promote orimpair water-dependent activity or public use or enjoyment of waterways or shorelines. The MHP
should contain a clear and detailed discussion of the relationship between the harbor planning areaand land subject to Chapter 91 jurisdiction. To place the proposed harbor planning area in thecontext of adjacent land uses and other development activities, the MHP should include high qualityimages and maps that:
For planning purposes, delineate the extent of Commonwealth and Private Tidelandsin the harbor planning area. The methodology and sources used should be discussedin the MHP.
On a parcel-specific basis, indentify properties and ownership of parcels within theharbor planning area, and significant parcels adjacent to the planning area in such a
way that defines the relationship of the parcels to the harbor planning area.
Since the MHP planning area includes land owned by the Department of Conservation andRecreation, the MHP should draw heavily on the Mystic River Master Plan that was completed byDCR in 2009 to reflect regional open space goals. The MHP should also include a discussion ofpast local planning efforts such as the Lower Broadway Master Plan and how the harbor planningarea fits within the context of these plans. Similarly, since the harbor planning area includesportions of the watersheet in the Mystic and Malden Rivers, the MHP should include a discussion ofpast watersheet planning efforts such as the Everett Waterfront Assessment, and maps that identifyownership, navigation channels, and other constraints in these waterways.
II. Public ParticipationThe RNTP documented the planning and participation that has already been completed
towards the development of this MHP as part of several local planning efforts, the most recentbeing the master planning for the Lower Broadway District Master Plan. This master planningprocess has engaged the community in a dialogue about re-envisioning the Lower Broadway area,including the waterfront parcels subject to this Notice to Proceed. The City of Everett shouldcontinue the momentum of public engagement into this MHP process, an extension of the LowerBroadway District Master Planning effort.
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The RNTP included a list of potential members of the Harbor Planning Group that willserve as an advisory committee to the City of Everett in the development of the MHP. The HarborPlanning Group includes a number of local representatives as well as designees from the MysticRiver Watershed Association and the Department of Conservation and Recreation. The City should
also extend invitations for participation on the advisory Harbor Planning Group to theMassachusetts Bay Transportation Authority and the Massachusetts Water Resource Authority, asthey have public property interests in the area. During the MHP planning process, the City shouldclosely coordinate with the surrounding communities of Boston, Somerville, and Medford, andprovide direct notice to these cities of all public meetings relating to the MHP planning process.
As stated in the RNTP, the public participation program includes regular meetings of theHarbor Planning Group in addition to broader public meetings intended to provide feedback atimportant milestones during the process. These public meetings should provide ample opportunityfor the public to participate in the Citys harbor planning process. The MHP should document thisprocess in order to demonstrate early and continuing public interaction and input on thedevelopment of the plan.
III. Substitution Guidance
For consideration as you develop your MHP, I call particular attention to the provisions of301 CMR 23.05, Standards for Approval. A state-approved MHP can allow greater flexibility to theapplication of certain Waterways requirements in that it may include provisions that substitute forcertain Chapter 91 limitations or numerical standards as long as the substitution provisions are atleast as effective at meeting the state tidelands policy objectives as those stated in the correspondingChapter 91 provisions and certain specific conditions are met. When a project conforms to a state-approved MHP, MassDEP will apply the use limitations or numerical standards specified in themunicipal harbor plan as a substitute for the respective limitations or standards contained in 310CMR 9.00 during the licensing process.
Substitute provisions may include alternative use limitations or numerical standards that areless or more restrictive than the Waterways requirements provided that, considering the balance ofeffects on an area-wide basis, they are accompanied by related measures that will mitigate,compensate for, or otherwise offset adverse impacts on tidelands policy objectives in a manner thatis of comparable or greater effectiveness than that afforded through the strict application of theWaterways standards. When assessing adverse impacts, therefore, the analysis and discussion shouldaddress directly those impacts to water-dependent activities, public access, and public use andenjoyment of the waterfront. Adverse impacts must be evaluated with consideration given to thecharacter of the anticipated use at the ground level.
In its RNTP, the City of Everett has identified the following substitute provisions to theWaterways Regulations that may be necessary for the implementation of the master planning thathas been completed for the area:
Height (310 CMR9.51(3)(e)) Water Dependent Use Zone (WDUZ)(310 CMR 9.51(3)(c)) Lot Coverage and Open Space (310 CMR 9.51(3)(d) and 310 CMR 9.53(2)(b))
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Facilities of Public Tenancy(FPT) and Facilities of Public Accommodation(FPA) (310 CMR 9.51(3)(b) and 310 CMR 9.53(2)(c))
The MHP should discuss how appropriate approval standards are met and provide ananalysis and discussion addressing adverse impacts and corresponding offsets for each substitute
provision. In determining whether comparable or greater effectiveness is achieved by the proposedoffsetting measures in the MHP, the Secretary will consider the following:
a.The planning analysis and data must be organized to clearly identify the substituteprovisions proposed and the relative effects of the less restrictive provisions on therelated tidelands policy objectives.
b.Offsetting measures should be applied within reasonable proximity to the locus ofadverse effects to ensure a balance in the distribution of public benefits and potentialdetriments.
Offsets are required in the MHP Regulations to mitigate or compensate on both a parcel-byparcel and area-wide basis for the adverse effects of substitute provisions on water-related publicinterests. The development of offsets must be commensurate with the degree of adversity to publicaccess, pedestrian level activities, and water-dependent use, employing an approach that is eitherquantitative, such as one unit of replacement for one unit lost, or qualitative, such as a package ofvarying types of improvements that address the quality of the water-related public interests. Thelatter strategy can provide greater opportunity to develop a package of offsets either on-site, or inclose proximity thereto when the site where the impacts are felt cannot accommodate correspondingoffsets, taking into consideration opportunities along the waterfront that will promote thedestination value of the waterfront or open space and access to the waterfront. Special attention toimplementation measures is required when considering off-site offsets within the harbor planningarea.
If special permit, site review or design review processes are proposed to be used to establishparticulars of offsetting mitigation on a case-by-case basis, the MHP must sufficiently define theparameters of such a process so that a reasonable assessment of the possible effects of these offsetsunder varying circumstances can be made during the Secretarys review.
A. HeightPursuant to 301 CMR 23.05(c)(5), an MHP may provide alternative building height standards
to that specified at 310 CMR 9.51(3)(e). The MHP should specify alternative height standards andother requirements which will ensure that, in general, new or expanded buildings for nonwater-dependent use will be relatively modest in size, in order that wind, shadow, and other conditions of
the ground level environment will be conducive to water-dependent activity and public accessassociated therewith.
To assist in assessing the alternative standard's compliance with this charge, the plan shouldinclude a conceptual analysis comparing a Chapter 91-compliant alternative to an alternativeincorporating the proposed height substitution. This comparison should focus on massing,pedestrian-level winds, and shadows and should be presented in a manner that is easy to read andclearly identifies the differences between the two conditions. The MHP should include a massing
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analysis comparing the gross volume associated with the proposed building heights to thatachievable under the Waterways Regulations. Based on the results of this analysis, a mitigationapproach should be defined to address any adverse effects of the substitute height standard throughthe use of offsets.
B.Water Dependent Use ZonePursuant to 301 CMR 23.05(c)(3), the MHP must specify alternative setback distances from
the water dependent use zone standard in 310 CMR 9.51(3)(c) and other requirements that ensurethat new or expanded buildings for nonwater-dependent use are not constructed immediatelyadjacent to a project shoreline. In addition, the MHP must demonstrate through appropriate analysisthat the substitute provision will, with comparable or greater effectiveness, devote sufficient spacealong the waters edge to water-dependent use and public access. The MHP should include ananalysis that quantifies the difference between the area of any reconfigured WDUZ and thatresulting for a strict application of the standards found in the Waterways regulations.
C. Lot Coverage and Open SpacePursuant to 301 CMR 23.05(c)(4), the MHP must specify alternative lot coverage ratios from
the standards found in the Waterways Regulations at 310 CMR 9.51(3)(d) and 310 CMR 9.53(2)(b))and other requirements which ensure that buildings for nonwater-dependent use will be relativelycondensed in footprint. The MHP must quantify any difference in the amount of open space areato be provided and that required under strict application of the Waterways standards, anddemonstrate that the substitute provision will, with comparable or greater effectiveness, reservesufficient open space to accommodate water-dependent activity and public access in a manner that iscommensurate with the area occupied by buildings.
Pursuant to 301CMR 23.05(c)(7), where projects are located on Commonwealth Tidelands,the MHP must specify additional requirements for public recreational facilities that will establish the
project site as a year-round locus of public activity. The MHP must demonstrate that public use andenjoyment of these tidelands will be promoted to a degree that is fully commensurate with thestandards in 310 CMR 9.53. The MHP should identify clearly the measures proposed to mitigate orcompensate for the adverse impacts associated with any modification to the open spacerequirements found at 310 CMR 9.51(3)(d) and 310 CMR 9.53(2)(b)).
D. Facilities of Private Tenancy and Facilities of Public AccommodationPursuant to 301 CMR 23.05(c)(2), the MHP must specify alternative limitations of facilities
of private tenancy from the standards found in the Waterways Regulations at 310 CMR 9.51(3)(b)and other requirements which ensure that there is no significant privatization of the waterfront areasimmediately adjacent to the WDUZ. The MHP must quantify the proposed FPT/FPA relationship
and demonstrate that the substitute provision will, with comparable or greater effectiveness, ensurethat waterfront areas immediately adjacent to the WDUZ are generally free of uses that conflictwith, preempt, or otherwise discourage water-dependent activity or public use and enjoyment of theWDUZ.
Further, pursuant to 301 CMR 23.05(c)(7), when projects are located on CommonwealthTidelands, the MHP must specify additional requirements for interior FPAs that will establish theproject site as a year-round locus of public activity. The MHP should include an analysis of how the
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project site will provide interior public space commensurate to the quantity/quality that would berequired under 310 CMR 9.53.
IV. Designated Port Area
The Municipal Harbor Planning area does not consist of any land or water in the Designated
Port Area (DPA), but the MHP should contain a discussion of how new development andwatersheet uses will avoid interfering with or impeding the nearby DPA. The City of Everett andthe broader region depend on the DPA for jobs, the delivery of fuel and cargo, and other water-dependent industrial activities. While watersheet activation such as water transportation andrecreational boating uses are encouraged as an element of the MHP, any new uses should becarefully planned as to avoid conflict with the DPA.
V. Climate Adaptation Strategies
Municipal Harbor Plans reflect the long term vision of the local community, and promotethe public use of tidelands with a balance of substitutions, offsets and amplifications. MHPs should
reflect careful analysis and planning for the long term provision of public benefits along the waterwith consideration of the potential impacts of climate change and sea level rise. The MHP shouldcontain guidance on climate adaptation strategies to ensure the long term effectiveness of publicbenefits on tidelands.
VI. MHP Renewal
Pursuant to 301 CMR 23.06(2)(a), the MHP should include a discussion recommending theperiod of time for which the MHP shall be in effect. Approved MHPs expire on the date specifiedin the Secretarys Approval Decision and must be renewed periodically to ensure continuing use byMassDEP in its licensing decisions.
VII. Compatibility with State Agency Responsibility
The MHP must demonstrate that the municipality has worked with all relevant state agenciesto maximize compatibility of the harbor plan with the plans or planned activities of all state agenciesowning real property or responsible for the development/implementation of plans or projects in theharbor planning area.
VIII. Implementation Strategy
It is essential that the MHP include enforceable implementation commitments to ensure thatall measures will be taken in a timely and coordinated manner to offset the effect of any MHP
requirement that is less restrictive than that contained in the Waterways Regulations (310 CMR9.00). As stated above, special attention to implementation strategy is necessary when consideringarea-wide offsets. The MHP should include details pertaining to how any off-site benefits will beimplemented.
To further identify opportunities for plan implementation and to ensure that plan guidanceis developed to an appropriate level of specificity, CZM encourages continued consultation withCZM and MassDEP staff as appropriate.
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In closing, my office looks forward to working with you, members of your staff and theharbor planning group, and I encourage you and your staff to continue to work closely with CZMsBoston Harbor Regional Coordinator, Valerie Gingrich, as you develop the City of Everett CentralWaterfront MHP.
Sincerely
Bruce K. CarlisleDirector
Cc: Ben Lynch, DEP WaterwaysAlex Strysky, DEP WaterwaysJamie Fay, Fort Point AssociatesSarah Kelly, Fort Point Associates
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Appendix E
GREENHOUSE GAS AND
MESOSCALE AIR QUALITY
ANALYSIS
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GREENHOUSE GAS AND MESOSCALE
AIR QUALITY ANALYSIS FOR
WYNN EVERETT
EVERETT, MASSACHUSETTS
April 2013
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GREENHOUSE GAS AND MESOSCALE
AIR QUALITY ANALYSIS FOR WYNN EVERETT
EVERETT, MASSACHUSETTS
Prepared for:
Fort Point Associates, Inc.33 Union Street
Boston, MA 02108
Prepared by:
Tech Environmental, Inc.303 Wyman Street, Suite 295
Waltham, Massachusetts 02451
April 24, 2012
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TABLE OF CONTENTS
Section Contents Page
1.0 SUMMARY OF RESULTS ....................................................................................1
1.1 Mesoscale Air Quality Analysis ......................................................................1
1.2 Greenhouse Gas Analysis ................................................................................2
2.0 PROJECT MESOSCALE AIR QUALITY ANALYSIS.........................................4
2.1 Mesoscale Study Area .....................................................................................5
2.2 Mesoscale Analysis Procedure ........................................................................6
2.3 Predicted Project Impacts ................................................................................6
2.4
Measures to Mitigate Air Quality Impacts ......................................................7
3.0 TRANSPORTATION GHG EMISSIONS ............................................................11
4.0 GREENHOUSE GAS (GHG) MITIGATION ANALYSIS ..................................13
4.1 Methodology and Summary of Results ..........................................................13
4.2 Site Design Mitigation Measures ...................................................................20
4.3 Building Design and Operation Mitigation Measures ...................................21
4.4 Draft Outline for Tenant Manual ...................................................................26
4.5
Transportation Mitigation Measures ..............................................................27
APPENDIX A - EQUEST MODEL OUTPUT
APPENDIX B - WORKSHEETs FOR VMT, VOC, NOx AND CO2 EMISSIONS
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LIST OF TABLES
Table Description Page
1 VOC Emissions Summary ................................................................................................10
2 NOx Emissions Summary ................................................................................................10
3 Motor Vehicle CO2 Emissions Summary .........................................................................12
4 Energy and CO2 Modeling ..................................................................................... 15 to 18
5 Greenhouse Gas Emissions Summary ..............................................................................19
6 Energy Modeling Assumptions .............................................................................. 24 to 25
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1.0 SUMMARY OF RESULTS
1.1 Mesoscale Air Quality Analysis
A mesoscale air quality analysis was performed for the proposed Wynn Everett entertainmentfacility located off Broadway (Route 99) in Everett, Massachusetts (hereafter referred to as the
Project). Mesoscale emissions of volatile organic compounds (VOC) and oxides of nitrogen
(NOx) were calculated for four scenarios: 2013 Existing, 2020 No-Build, 2020 Build, and 2020
Build with Mitigation. This analysis uses the US Environmental Protection Agency (EPA)
MOBILE6.2 Mobile Source Emission Factor Model, and follows a protocol that was approved the
Massachusetts Department of Environmental Protection (DEP).
The mesoscale analysis predicts that the emissions of VOC and NOx in the project study area for the
2020 Build case will be larger than the emissions for the 2020 No-Build case.
Wynn Everett will mitigate potential air quality impacts by committing to a number of transportation
demand management (TDM) strategies and roadway/traffic signal improvements for the project.
Incentives will be provided to help increase the effectiveness of the voluntary TDM measures. The
TDM measures will improve traffic operations, reduce project generated vehicle trips, and reduce
project-related motor vehicle air pollutant emissions. These mitigation measures will result in small
reductions in VOC and NOx emissions compared to the 2020 Build case. The proposed TDM
measures and roadway/traffic signal improvements constitute all reasonable and feasible traffic
mitigation measures for a project that is well-served served by public transportation.
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1.2 Greenhouse Gas Analysis
A greenhouse gas (GHG) emissions analysis was performed for Wynn Everett, consistent with the
Executive Office of Energy and Environmental Affairs (EOEEA) Greenhouse Gas Emissions
Policy and Protocol (May 5, 2010). The development consists of approximately 1.4 million square
feet (sf) of inhabited space, including a 19-story hotel, an entertainment facility including a casino,
convention space, restaurants, retail stores, a health club, and a Winter Garden facing south over the
Mystic River. There will be separate parking structures for patrons and employees. This GHG
analysis conforms to the EOEEA Policy, and the proposed Project is consistent with the
Commonwealths Sustainable Development Principles.
The GHG Policy requires a project to quantify CO2 emissions and identify measures to avoid,minimize or mitigate such emissions, quantifying the effect of proposed mitigation in terms of
emissions reduction and energy savings. The GHG Emissions Policy and Protocol requires
quantification of GHG emissions from three sources: direct emissions from on-site stationary
sources, indirect emissions from energy generated off-site (electricity), and traffic generated by the
Project. CO2 emissions were quantified for: (1) the Base Case corresponding to the 8th
Edition of
the MA Building Code that includes the 2009 IECC with MA amendments, and (2) the Mitigation
Alternative, which includes all energy saving measures, detailed in Section 4. To provide creative
energy mitigation, the Project has adopted the following Energy Efficiency Measures (EEMs):
Cool roofs. Central chiller plant with better efficiency than Code. Demand Control Ventilation (DCV) for the casino, public entertainment and retail areas. Energy Recovery Ventilation (ERV) to reduce chiller energy use. Building envelopes with roof and window insulation better than Code. There will be skylights over the entry atrium, along the retail promenade and as part of
the glass-enclosure for the Winter Garden at the south end of the building.Daylighting controls will be tied to this extensive system of skylights.
Lower light power density better than Code for the high-rise hotel. Low-energy Electronic Gaming Machines (EGMs). Metal halide lighting for all parking structures. Demand Control Exhaust Ventilation (DCEV) with variable frequency drive (VFD) fans
for enclosed parking structures. Kitchen and restaurant refrigeration energy efficiency design to reduce energy use. Energy-STAR appliances. Occupancy controls for non-occupied or infrequently occupied spaces.
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The potential for alternative and renewable energy sources to be incorporated into the Project will be
examined. The Project is only at an early conceptual level of design. Thus, the ability to
realistically evaluate certain energy efficiency technologies does not exist at this time. For this
reason, the analysis identifies the following additional EEMs that the Project will continue to study:
Combined heat and electric power generation (cogeneration). Ground-source heat pumps for the hotel high-rise building. Third-party photo-voltaic (PV) installation. Anaerobic digestion of source-separated organics (SSO) to derive fuel gas.
These additional innovative measures will be studied further for adoption as the design progresses.
The Project team will consult with MassDOER and MassDEP regarding these energy efficiency
measures.
The Project will commit to a comprehensive list of EEMs in the Mitigation Alternative that will
reduce total direct and indirect stationary source energy use by 19.1% and will reduce CO2
emissions by 20.6% compared to the Base Case. The Project, however, retains the flexibility to
achieve these goals using energy efficiency measures to be refined at the time of detailed design.
Transportation Demand Management (TDM) measures for this project will reduce Project-related
motor vehicle CO2 emissions by 5.0%. The net reduction of the Projects total CO2 emissions
(stationary source, plus transportation) is 18.1% compared to the Base Case.
Following the completion of construction and in accordance with the MEPA GHG Emissions Policy
and Protocol, the Project will provide a certification to the MEPA Office signed by an appropriate
professional stating that all transportation and non-transportation greenhouse gas mitigation
measures described in this EIR, or measures providing comparable mitigation, have been
incorporated into the Project.
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2.0 PROJECT MESOSCALE AIR QUALITY ANALYSIS
The mesoscale air quality analysis was performed to calculate the potential regional air quality effect
of the proposed project, using as a measure the total daily emissions of volatile organic compounds
(VOC) and oxides of nitrogen (NOx) in the study area following the latest Massachusetts DEP
guidance1. Specifically, calculations were performed to compare areawide VOC and NOx emissions
after the project is built with existing and future no-build emissions.
The purpose of controlling VOC and NOx emissions is to reduce the concentration of ground-level
ozone. VOC react with NOx in the presence of sunlight to create ground-level photochemical
oxidants (ozone). Motor vehicles are the predominant source of VOC and NOx in Massachusetts.
The entire Commonwealth of Massachusetts was classified by the US EPA as a "serious" ozone non-
attainment area with regard to the old one-hour ozone standard. Massachusetts was required by the
1990 Clean Air Act Amendments to reduce VOC emissions until attainment of the one-hour
Massachusetts and National Ambient Air Quality Standard (NAAQS) for ozone is reached. The
Commonwealth developed a State Implementation Plan (SIP) for ozone that showed how these
reductions would be achieved. Air monitoring showed that compliance with the one-hour ozone
standard has been achieved in most of Massachusetts.
In 1997, the U.S. EPA established a new eight-hour NAAQS for ozone. In April of 2004, the U.S.
EPA designated eastern Massachusetts as a moderate nonattainment area with respect to the new
eight-hour ozone NAAQS. The U.S. EPA revoked the one-hour ozone standard nationwide in 2005,
as part of the implementation of the eight-hour ozone NAAQS. The Commonwealth submitted the
required final ozone SIP to the U.S. EPA on January 31, 2008, demonstrating compliance with the 8-
hour ozone NAAQS. On March 12, 2008, the U.S. EPA revised the 8-hour ozone standard by
reducing it from 0.08 parts of ozone per million parts of air (ppm) to 0.075 ppm. The U.S. EPA
issued final attainment status designations regarding the new standard on June 28, 2012. In January
2010, U.S. EPA proposed to lower the standard to a level between 0.060 ppm to 0.070 ppm. On
1Massachusetts DEP, Guidelines for Performing Mesoscale Analysis of Indirect Sources, Division of Air Quality
Control, May 1991.
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September 2, 2011, the Obama administration delayed signing a final rule on the reconsideration of
the 2008 Ozone standard until 2013, which likely delay the final attainment designations.
Ozone concentrations in the study area are made up of three parts: 1) natural ozone; 2) locally
generated ozone; and 3) ozone transported from upwind urban areas. Emissions of VOC and NOx in
the study area have almost no effect on local ozone levels due to their relatively small size and the
fact that photochemical reaction times are not rapid enough to form ozone until a parcel of air has
been transported a long distance downwind. VOC and NOx emissions from the urban areas south
and west of Massachusetts are the primary determinants of ozone levels in the study area. The VOC
and NOx emissions from the study area are insignificant when compared to emissions from the entire
region and urban areas upwind (such as Springfield, Hartford, and New York City). Effective ozone
control measures are national programs such as those setting motor vehicle emission standards and
controls on large fuel-burning sources (electric utility plants and industrial boilers).
2.1 Mesoscale Study Area
The mesoscale study area was conservatively defined to include the entire traffic study area. It is
includes the following roadway segments:
Main Street Connectors to Sweetser Circle Route 99 Connectors to Sweetser Circle Route 16 Connectors to Sweetser Circle Route 99 between Sweetser Circle & Beacham Street Sweetser Circle Route 16 W Off Ramp to Sweetser Circle Route 99 between Sweetser and Santilli Circles Route 16 Santilli Circle Connectors through Sweetser Circle Santilli Circle Rt 16 within Santilli Circle Santilli Highway to Santilli Circle Connectors Route 16 West Bound Connector Route 16 East Bound Connector to Santilli Circle Route 16 East Bound to Mystic View Road Mystic View Road to Santilli Circle Connectors Route 99 between Beacham Street and Chemical Lane Route 99 to Sullivan Square Connectors West Street to Sullivan Square Connector Main Street (Route 38) to Sullivan Square Connector Maffa Way to Sullivan Square Connector
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Cambridge Street to Sullivan Square Connector Rutherford Avenue to Sullivan Square Connectors Main Street to Sullivan Square Connectors Sullivan Square Beacham Street to Route 99 McDonalds Drive to Route 99 Chemical Lane to Route 99
2.2 Mesoscale Analysis Procedure
The mesoscale analysis calculated emissions of VOC and NOx over the study area for four scenarios:
2013 Existing 2020 No-Build 2020 Build 2020 Build with Mitigation.
The vehicle miles traveled (VMT) for each roadway segment was calculated by multiplying the
length of each road segment by the average daily traffic volume on the segment. Average daily (24-
hour average) traffic volumes (ADTs) were calculated based on traffic data provided by Vanasse &
Associates, Inc. (VAI); the calculations are shown in Appendix B.
The VOC and NOx emissions for each roadway segment were calculated by multiplying the VMT
(miles per day) by the MOBILE6.2 predicted VOC and NOx emission factors in grams per mile.
The MOBILE6.2 model was run using input files provided by the Massachusetts DEP for 2013 and
2020. These emission factors were calculated for the warm summertime temperatures, which
correspond with the peak ozone season. MOBILE6.2 predicted VOC and NOx emission factors vary
with vehicle speed. Average speeds were assumed to range from 15 to 30 mph within the roadway
network.
2.3 Predicted Project Impacts
A summary of the results of the mesoscale analysis is presented in Tables 1 and 2. In Table 1, the
2013 Existing VOC mesoscale emissions over the study area are 31.39 kg/day. The mesoscale
emissions of VOC for the 2020 No-Build case are predicted to be 28.32 kg/day. This is a 9.8%
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decrease from the existing mesoscale VOC emissions. The mesoscale emissions of VOC for the
2020 Build case are predicted to be 32.81 kg/day. This is a 4.5% increase from the existing
mesoscale VOC emissions.
Table 2 shows that the 2013 Existing NOx mesoscale emissions over the study area are 57.18 kg/day.
The mesoscale emissions of NOx for the 2020 No-Build case are predicted to be 30.14 kg/day. This
is a 47.3% decrease from the existing mesoscale NOx emissions. The mesoscale emissions of NOx
for the 2020 Build case are predicted to be 35.0 kg/day. This is a 38.8% decrease from the existing
mesoscale NOx emissions.
The US EPA has established more-strict emission standards for new motor vehicles than older
vehicles. The MOBILE6.2 model predicts motor vehicle VOC and NOx emissions to decrease
between 2013 and 2020, as new, lower polluting vehicles replace older vehicles on the roadways.
The MOBILE6.2 model predicts further declines in VOC and NOx motor vehicle emission rates after
2020. These national control programs are the most effective mitigation measures for ozone, a
regional air pollutant. While each indi