vt psb noise rule presentation final 2dec2016
TRANSCRIPT
VermontPublicServiceBoardSoundRuleWorkshop
December2,2016MontpelierRoomattheCapitolPlazaHotel
100StateStreet,Montpelier,Vermont
Presenter:StephenE.Ambrose,ASA,INCEBoardCertifiedSEAmbrose&Assoc,Windham,Maine04062Acoustics,EnvironmentalSound&NoiseControl
Experience:Startedin1976;listenfirst,…thensoundmeasurementsLGCopley&Assoc,Stone&WebsterEngineering,ShawGroupDesignGoal;RequireClientstobeGoodAcousticNeighbors,
KnowWhyNeighborsComplain,andHoldParamountPublicHealth,SafetyAndWellbeing
Today;listenfirst,…thensoundmeasurements
VermontPublicServiceBoardSoundRuleWorkshop
Dec2,2016 VermontersforaCleanEnvironment 2
ASimpleConversationAboutWindTurbineNoise
Dec2,2016 VermontersforaCleanEnvironment 3
VermontPublicServiceBoardSoundRuleWorkshop
WhyAreNeighbors
Complaining?
Dec2,2016 VermontersforaCleanEnvironment 4
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SoundsAwful!(lowfrequency&infrasound)
Dec2,2016 VermontersforaCleanEnvironment 6
VermontPublicServiceBoardSoundRuleWorkshop
ShirleyWindresidentstestified thattheyandtheirchildrenhavesufferedsevereadversehealtheffects,forcinghomeabandonment.Theyattributetheirproblemstoarrivalofthewindturbines.
--------Duringthesoundsurvey,GeorgeHessler,INCE notedthatababystartedcryingshortlyafterarrivingattheabandonedhome.
Ref:ACooperativeMeasurementSurveyandAnalysisofLowFrequencyandInfrasoundattheShirleyWindFarminBrownCounty,Wisconsin– 24Dec2012
SoundsAwful!(lowfrequency&infrasound)
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VermontPublicServiceBoardSoundRuleWorkshop
Ref:ACooperativeMeasurementSurveyandAnalysisofLowFrequencyandInfrasoundattheShirleyWindFarminBrownCounty,Wisconsin– 24Dec2012)
Dr.PaulShomer,etal,Dec21,2012
I)Observationsfromdiscussionswithresidents: (page46,item5)
Residents of the nearest house reported that their baby son, now 2 years old, would wake up 4 times a night screaming. This totally stopped upon their leaving* the vicinity of the wind turbines, and he now sleeps 8 hours and awakens happy. * abandoned their home
Must,…ProtectNeighborsMinimizeAdverseHumanResponses
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LowerdBALimit
usePublishedStudies
& Standards
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MakeComplianceEasytoAssessandMeasure,…
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VermontPublicServiceBoardSoundRuleWorkshop
Long-termAverage?
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No,…
AveragesHide!!!(nextchart)
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VermontPublicServiceBoardSoundRuleWorkshop
PeopleReacttoChangesInSoundLevels,FrequencyContent,
PureTones,Infrasound,PressureImpulses
Dec2,2016 VermontersforaCleanEnvironment 16
VermontPublicServiceBoardSoundRuleWorkshop
AspreviouslyshownwithVermont’s
ACT250Dec2,2016 VermontersforaCleanEnvironment 17
VermontPublicServiceBoardSoundRuleWorkshop
Act250
EnvironmentalBoard(EB)&AgencyofNaturalResources(ANR)
Dec2,2016 VermontersforaCleanEnvironment 18
VermontPublicServiceBoardSoundRuleWorkshop
ACT250,ListeningisImportant
Peoplehearinstantaneouspeakvariationsabovebackgroundandrespondaccordingly
Dec2,2016 VermontersforaCleanEnvironment 19
VermontPublicServiceBoardSoundRuleWorkshop
VermontSupremeCourt
Ruled:Act250caseinvolvingnoise;
LmaxmoreappropriatethanLeq
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Findings;
Whenasoundsourceisvariable,andespeciallywhenhigherthanthenormalbackground,
Thehigherlevelsaffectpeople,
Therefore, Lmaxtheproperprotectivestandard
ACT250,ListeningisImportant
Dec2,2016 VermontersforaCleanEnvironment 21
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ACT250InstantaneousMaximumRelativetoBackground
LAmax– LA90≤ 10dB(TurbinesON)(NoTurbines)
(AmbientBackground)Dec2,2016 VermontersforaCleanEnvironment 22
VermontPublicServiceBoardSoundRuleWorkshop
BackgroundAmbient?
Dec2,2016 VermontersforaCleanEnvironment 24
VermontPublicServiceBoardSoundRuleWorkshop
Easy,…
ISO1996-1971ANSIS12.9,Part4
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DistrictTypeDaytimeLimit(7AM– 7PM)
EveningLimit(7-11PM)
Nightlimit(11PM– 7AM)
Rural 35dB(A) 30dB(A) 25dB(A)Suburban 40dB(A) 35dB(A) 30dB(A)
Urbanresidential 45dB(A) 40dB(A) 35dB(A)UrbanMixed 50dB(A) 45dB(A) 40dB(A)
ISO1996-1971Recommendations forCommunityNoiseLimits
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DistrictTypeDaytimeLimit(7AM– 7PM)
EveningLimit(7-11PM)
Nightlimit(11PM– 7AM)
Rural 35dB(A) 30dB(A) 25dB(A)Suburban 40dB(A) 35dB(A) 30dB(A)
Urbanresidential 45dB(A) 40dB(A) 35dB(A)UrbanMixed 50dB(A) 45dB(A) 40dB(A)
ISO1996-1971Recommendations forCommunityNoiseLimits
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VermontPublicServiceBoardSoundRuleWorkshop
>VermontRidgeLineWindTurbineSite<
ANSIS12.9,Part4Aquietruralareawithnewunfamiliarintrusivenoisesource,outdoorsnightaverageshouldnotexceed;
(F.3.4.1) 30dBAforcompatibility(F.3.4.2) 35dBAformarginalcompatibility
>VermontRidgeLineWindTurbineSites<Dec2,2016 VermontersforaCleanEnvironment 28
VermontPublicServiceBoardSoundRuleWorkshop
ANSIS12.9,Part4Anewunfamiliarindustrialnoisesourceshouldbe
consideredincompatible whensitedinaquietruralarea
Canproduceannoyanceequivalentto15dBincrease abovemeasuredorpredictedlevels
>VermontRidgeLineWindTurbineSites<Dec2,2016 VermontersforaCleanEnvironment 29
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ANSIS12.9,Part4Anewunfamiliarindustrialnoisesourceshouldbe
consideredincompatible whensitedinaquietruralarea
Canproduceannoyanceequivalentto15dBincrease abovemeasuredorpredictedlevels
>VermontRidgeLineWindTurbineSites<Dec2,2016 VermontersforaCleanEnvironment 30
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USEPAprovidedthissameassessmentintheir1973CommunityNoiseand1974LevelsDocument.
No,…WindDoesNotMask!
supportedby:ANSIS12.9-2005,Part4
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Masking;ANSIS12.9-2005,Part4, (A.1.3)
Maskingoccurswhenthethresholdofdetectionofonesoundisraisedbyanothersound
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Masking;ANSIS12.9-2005,Part4,A.1.3
Maskingoccurswhenthethresholdofdetectionofonesoundisraisedbyanothersound.Maskinglevelsvary,withcompletemaskingresultingininaudibility.
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VermontPublicServiceBoardSoundRuleWorkshop
Masking;ANSIS12.9-2005,Part4,A.1.3Maskingoccurswhenthethresholdofdetectionofonesoundisraisedbyanothersound.Maskinglevelsvary,withcompletemaskingresultingininaudibility. Time
varyingsoundsandspectralcontentmayrequireupto
20dB differencebetweensoundsources
Dec2,2016 VermontersforaCleanEnvironment 35
VermontPublicServiceBoardSoundRuleWorkshop
ANSIS12.9(2013),Part3
7.3 On/Off testrequirestheoperatortofullycooperate
andshut-downnoisesources
(AllturbineSCADAinfo at >80% electric-poweroutput)Dec2,2016 VermontersforaCleanEnvironment 36
VermontPublicServiceBoardSoundRuleWorkshop
HowtoEstablishBackgroundAmbientL90
2AMMeasurements
LmaxON>40to45dBA
BackgroundL90=28dBA
NotatFullElec-Pwr Out
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ANSIS12.9(2013),Part3
7.4.2.(a) “Proxy”testatalocationwithoutnoisesource
(noneedforshut-down)
HowtoEstablishBackgroundAmbientL90
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WhatAboutNoiseandHealth?
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Wellresearched,Presentedin
WHO2009Publication
WorldHealthOrganization(WHO)
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VermontPublicServiceBoardSoundRuleWorkshopLAeq NightOutside WHO2009ObservedHealthEffects
Upto30dBANOEL Nosubstantialbiologicaleffects,noobservedeffectlevel
30to40dBAAffectssleep,bodymovements,awakening,self-reportedsleepdisturbance,arousals,vulnerablegroups;children,chronicallyill&elderlyaremoresusceptibletoadversehealtheffects;AHEs.
40dBALOAEL Nightnoiseguideline(NNG),lowestobservedadverseeffectlevel forthegeneralpopulation.
40to55dBA AHEsareobservedandmanyhavetoadaptlivestocopewithnoiseatnight.Vulnerablegroupsaremoreseverelyaffected.
Above55dBAIncreasinglydangerousforpublichealth.AHEsoccurfrequently;sizeableproportionofpopulationhighlyannoyedandsleep-disturbed;increasedriskofcardiovasculardisease.
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LAeqNightOutside
WHO2009ObservedHealthEffects
Upto30dBANOELNosubstantialbiologicaleffects,noobservedeffectlevel
30 to40
dBA
Affectssleep,bodymovements,awakening,self-reportedsleepdisturbance,arousals,vulnerablegroups;children,chronicallyill&elderlyaremoresusceptibletoadversehealtheffects;AHEs.
Dec2,2016 VermontersforaCleanEnvironment 42
WHO2009
NightNoiseGuidelines
forEurope
ISBN9789289041737
Dec2,2016 VermontersforaCleanEnvironment 43
Eachslideisveryconvincing,…
isthereaneasywaytoshow?
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VermontPublicServiceBoardSoundRuleWorkshop
Yes,…
USEPA“LevelsDocument”withthecautionaryadvisorybyDr.KenEldred(AppendixD,1974),
& supportedbyotherresearchersandinvestigators
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Community Noise Reaction
• USEPA “Levels Document”, 1974
• Pedersen & Waye, 2004
• Hayes McKenzie Group, 2006 (Draft Report Before Wind Advocate Revisions)
• Kemperman/James, 2008
• WHO Health Effects Night, 2009
• Dan Driscoll (Formerly w/NYDEQ), 2009
• Rand/Ambrose, 2010
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Theseresearchersandinvestigatorslistened,…
Hear asaneighbor,…(nextchart)
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Whyarewindturbinepredictionnoisemodels
ineffective?
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Inthelate1980s*,windbegantoinfluenceprofessionalorganizations,internationalstandards,…putintopracticespecificwindturbineprocedures,protocols,methods,...
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Thereby,reducingthenoiselevelrequirementsforprotectingpublichealthandwell-being.
*onlymyopinion
NoisepredictorsuseLeqstohideworst-caseLmax,whichneighborshear
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Imaginethispresentation,…a10-minLeqstraightredline,
vs
fluctuations ˃10dBDramaticallyDifferent!!!
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NoiseRecommendations?
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ThinkAboutNeighbors Whattheyhearandlivewith
Compatibility (ANSI12.9,Part5)
Trustindependentnoisestudies thatdonotfavorwindturbines.
VermontAct250:Lmax– L90≤10Dec2,2016 VermontersforaCleanEnvironment 57
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RecommendationsCriticalhours areatnight:
Establishfordesignpurposes;Ambientbaseline:L90<25dBANowindmasking
PredictionsandMeasurementsWindturbineoperationcompliance,
Lmax<35dBA& Leq<32dBADec2,2016 VermontersforaCleanEnvironment 58
VermontPublicServiceBoardSoundRuleWorkshop
ConsistentWith
ACT250
HowAboutSetbackDistance
Recommendations?
Dec2,2016 VermontersforaCleanEnvironment 59
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Easy,…Europe:Poland,Bavaria
10timestotalheight(tower+bladelength)
Mass:CapeCodCommission10timesbladediameter
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