HomeMy WebLinkAboutComments on Setback, Noise and Flicker Boarc
Town
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To: The Town
From: Jude Lem
Date: October 9
RE: Comment..
A
In Iight of the fact i
requirements oft ,
among other requi
application and pe
consider as part of
Noise
We are submitting
of the Draft Suppl
20,2016,and "Am,
Noise Pollution Cle,
the Draft Supplem .
conclusions reach
for the original ap
e
As pointed out in tin
provide residents
wind farm. Other%
any nuisance suit
Likely fail.
Furthermore,as th
27 dBA. This is tru
BOWF itself. Thee 4
proposing just tha
45-46 dBA at resido'
As part of the revi
should exercise it
any point on orbJ
turbine is located t
n
r
1. 40 dBA Fa.
2. 35 dBA Fa,
3. 50 dBC Fa
a
1
4. 45 dBC Fast Lm
For this purpose,soun 4
specifications of the la
Specifications for Gen
specifications of the m
a recognized laborator=.
noted otherwise,mea
"Outdoor Measureme
Failing that,the standG
property lines.
k.
f _
Setback Distances and
x
Nowhere in Draft EIS o
and property Fine maki
their property and ho
Statement for the Win' 4
the nearest turbine fr
review in connection
Inadequate Setbacks
There can be little disp
adverse impacts cause
neither the setbacks in
adequate.
As a case in point, in F '
r.
foot long turbine blade
with a man who lives a
the blade was thrown
bounced another 148f
setbacks and the setba
line setback of less tha `}
potentially injuring so
"Ice throw" is also a sig
document found on th
Black Oak.The GE doc
It expressly states:"[i]
turbine park."
To mitigate these haza'
contained in the Town
setbacks [i]f icing is like.
residences and public
1 a
t r
1
remote boundaries n .
standard but in doin y
propertyboundar in
development or inha
those boundaries in
appropriate to utilize'
times the Hub Heigh
Nonetheless, even th
discussed in detail in,
pages 13 to 15,studi i
be significantly great
manufacturer,Vesta
regulations (Exhibit 3
property would be i
foot or Vestas' 1,300
these setbacks. And a
2 of the committee r i
deprives her of the u;
of other residents, inc ,t
BOWF's President, P A'
turbines will automa
Throw—Risk and Mit
some models (with c r> g
As part of the revie
should exercise its di
that,they should inc
j
2.3MW-107 turbines
Flicker :.
The Wind Advisory C
techniques relating t
of BOWF's applicatio h ija
concerns and to inco
i
Shadow flicker only o
and is at a low angle(
affected property,an
w
r
considerable amount
shadow flicker. Gener
i These shadow flicker
organisation promoting
Denmark, France,the N
g
meters'from dwellings and limit the amount off I icker to no more than 30 ho
cases, no more than 30 minutes per day. Research has shown that when turbi
rotor diameters'or more from a dwelling,the potential for shadow flicker is w
adopted a standard of 30 hours per year as its measure for what constitutes_a
gives no support for that standard.
There are many complaints by residents living near wind turbines about the it
These complaints and concerns include,among other things, headaches,tinn'i
earaches,vertigo and seizures. In many cases, residents have abandoned their
were unable to sell them and could no longer stand living with the effects of t
produced by the Bureau of Land Management,the BLM notes that flickering F
an annoyance.8 With respect to seizures however,the BLM points out that m
turbines are unlikely to cause epileptic seizures in the susceptible population'
due to the low blade passing frequencies.1°
The World Health Organization defines annoyance as a feeling of discomfort
influencing of an individual or a group by any substances or circumstances.Ar
malaise,fear,threat,trouble, uncertainty restricted liberty experience, excita
While there has yet to be a direct causal Link established between flicker and
World Health Organization does link annoyance to various diseases such as di?
disease. Furthermore,the NIH's National Center for Biotechnology Informatio
been little if any research conducted on how flicker could heighten the annoys
in proximity to turbines."
The BOWF data on shadow flicker provides no information about what the sta
measurements and those measurements are based solely on average amount
amounts of wind for the months,the amount of flicker could vary substantiall
flicker shadow well in excess of the 30 hour per year standard BOWF has pro
the amount of flicker that could occur on any one day at certain residences co
z This equates to roughly 1,750 to 3,500 feet.
s This equates to 1,070 meters or3,500 feet for the GE 2.3MW-107 turbines
4 https://www.gov.uk/government/uploads/system/uploads/attachment_data/file/4
shadow-flickerevidence-base.pdf
s https://www.bostonglobe.com/metro/2013/04/04/turbine-flicker-effect-
drawscomplaints/UKgf7nOwM Hm8CWAtZ47V5t/story.htm
6 http://www.telegraph.co.uk/news/earth/earthnews/8386273/Shadow-flicker-rotatr
headaches.html
7 https://www.youtube.com/watch?v=RD6g3ixgO-s
Final Programmatic Environmental Impact Statement on Wind Energy Development
in the Western United States, US Department of the Interior—Bureau of Land Manag
9 Around 0.5%of the population is epileptic and of these around 5%are photo-sensi-
epileptics less than 5%are susceptible.
zo http://onIineIibrary.wiley.com/doi/10.1111/j.1528-1167.2008.01563.x/epdf
11 http://www.euro.who.int/_data/assets/pdf_file/0015/105144/WHO_Lares.pdf
iz http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4063257/
minutes per day which is the standard set by European countries_13 Nonetheless,there is no meaningful
mitigation provided for them in the Final EIS.
Various mitigation steps can be taken to minimize the impact of flicker on nearby residents. Among
other suggested mitigation tools are the use of blinds at residential properties or tree/shrub planting to
screen shadow flicker to help minimize potential impacts. While BOWF mentions these potential
mitigation steps, it does not actually propose any mitigation steps in the Final EIS. Nonetheless, many
people complain that blinds do Kittle to actually block the impact of flicker and do nothing to alleviate its
effects while outdoors. Planting trees or shrubs will do little to mitigate the impacts in the short run
before the vegetation grows to a sufficient size to mitigate_ More meaningful mitigation steps would be
to have BOWF shut down the turbines between the time the sun is rising and setting for approximately
an hour around sunrise or sunset depending on where the residents reside in relation to the sun.
Alternatively, BOWF can program their computers to control the direction of the turbine so the blades
are directly parallel to the sun.
As part of the review of BOWF's application and the Wind Energy Permit process,the Town Board
should exercise its discretion to limit shadow flicker to no more than 30 hours per year and 30
minutes per day. Furthermore,the Town Board should impose mitigation steps that include shutting
down the turbines between the time the sun is rising and setting for approximately an hour around
sunrise or sunset depending on where the residents reside in relation to the sun. BOWF should also
program their computers to control the direction of the turbine so the blades are directly parallel to
the sun..
is Shadow flicker recommendations are based on the survey by Predac,a European Union sponsored organization
promoting best practice at energy use and supply which draws on experience from Belgium, Denmark,France,the
Netherlands and Germany.
1192 https://www.gov.uk/government/uploads/system/uploads/attachment_data/file/48052/1416.-update-uk-
shad ow-fI ickerevidence-base.pdf
GE E
SET 6
Set bac
avoilobil
Ice shed
these h
Table 1:
If icing i
1.5 x!H
All turbi
1.1 c T ir)
All turbi
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The m
Servic
services
Use 1/z
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GE reco
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listed in
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C 2009 G
Report on Wind Turbines
Report to the Town of Enfield Town Board
Enfield Wind Farm Advisory Committee
April 12,2106
See http://townofenfield.ore/wp-content/uploads/2016/04/Enfield-Wind-Farm-Advisory-Committee-
Re po rts-2016-04-12.pdf
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Introduction
A turbine connected to the grid implies certain elements of dangei if it is handled without exercising
prop('(ca,ition
For safety reasons.at east two persons ha%.e to be presort during a work procedure.
The work rnust be properly carried out in accordance vAth this ananual and other related manuals.
This implies,among other things that personnel must be instructed in and familiar with relevant warts
of this manual
;:urthei mom personnel must be familiar vAth the contents of the"3ubstances and Materials'
regulations
Caution must especially be exerted in situations,,,(here measurement and.vork is done in junction
boxes that car.be connected to popier
Consequently the foflo•rring safety regulation,must be observed
2. Stay and Traffic by the Turbine
Do not stay-within a radius of 300rr.i 300ft)fr:••m the turbine unless it is necessary. If you have i:'
inspect an ;resting turbine from the g:nund -i, not„ay under the rotor plane but observe the!otor
from the front.
INAake sure that children do not stay by or play nearby the turbine.If necessary,fence the foundation. 'r
The access door to the turbine must be locked in order to prevent unauthorised persons from
stopping or damaging the turbine due to mal-operatior,of the controller. _ 7 r-,
3. Address and Phone Number of the �� ?
Turbine Cc
Note the address and the access road of the turbine in:vase an emergency situation should arse.The
addiess of the turbine can often be found in the sera ice reports it-,the rung binders next to the ground
controller.Find the phone number of the local life-saving seance
.iSs'i r"f1d.�iYSrC'T15�:S L`!cy _ ;:QA.';�^.•3Cr5 _nr.:vt2Tk ..,..vQsids CGlYt
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Energy
ice Shedding and Ice Throw -
Risk and Mgitiation
David Wahl
Philippe Giguere
Wind Application Engineering
GE Energy
Greenville, SC
Ice shedding and Ice Throw
Risk and Mitigation
Introduction Institut IDEWO,it should be noted that the actual distance is
As with any structure,wind turbines can accumulate ice under dependant upon turbine dimensions,rotational speed and
certain atmospheric conditions,such as ambient temperatures many other potential factors.Please refer to the References
near freezing(0°C)combined with high relative humidity,freezing for more resources.
rain,or sleet.Since weather conditions may then cause this ice to ® Physical and Visual Warnings:Placing fences and warning signs
be shed,there are safety concerns that must be considered during as appropriate for the protection of site personnel and the public[4)
project development and operation.The intent of this paper is to . Turbine Deactivation:Remotely switching off the turbine when
share knowledge and recommendations in order to mitigate risk. site personnel detect ice accumulation.Additionally there are
The Risk several scenarios which could lead to an automatic shutdown
of the turbine:
The accumulation of ice is highly dependent on local weather
conditions and the turbine's operational state."-"Any ice that is - Detection of ice by a nacelle-mounted ice sensor which is
accumulated may be shed from the turbine due to both gravity available for some models(with current sensor technology,
and the mechanical forces of the rotating blades.An increase in ice detection is not highly reliable)
ambient temperature,wind,or solar radiation may cause sheets or - Detection of rotor imbalance caused by blade ice formation
fragments of ice to loosen and fall,making the area directly under by a shaft vibration sensor;note,however,that it is possible
the rotor subject to the greatest risks").In addition,rotating turbine for ice to build in a symmetric manner on all blades and not
blades may propel ice fragments some distance from the turbine trigger the sensor(2)
up to several hundred meters if conditions are right."-',"Falling ice
- Anemometer icing that leads to a measured wind speed
may cause damage to structures and vehicles,and injury to site
below cut-in
personnel and the general public,unless adequate measures are
put in place for protection. Operator Safety:Restricting access to turbines by site personnel
while ice remains on the turbine structure.If site personnel
Risk Mitigation absolutely must access the turbine while iced,safety precautions
The risk of ice throw must be taken into account during both may include remotely shutting down the turbine,yawing to place
project planning and wind farm operation. GE suggests that the rotor on the opposite side of the tower door,parking vehicles
the following actions,which are based on recognized industry at a distance of at least 100 m from the tower,and restarting the
practices,be considered when siting turbines to mitigate risk for turbine remotely when work is complete.As always,standard
ice-prone project locations: protective gear should be worn.
® Turbine Siting:Locating turbines a safe distance from any
occupied structure,road,or public use area.Some consultant
groups have the capability to provide risk assessment based on
site-specific conditions that will lead to suggestions for turbine
locations,in the absence of such an assessment,other guidelines
may be used.Wind Energy Production in Cold Climate[61 provides
the following formula for calculating a safe distance:
1.5*(hub height+rotor diameter)
While this guideline is recommended by the certifying agency
Germanischer Lloyd as well as the Deutsches Windenergie-
GE Energy I GER-4262(04/06) 1
References
The following are informative papers that address the topic of wind
turbine icing and safety.These papers are created and maintained
by other public and private organizations.GE does not control or
guarantee the accuracy,relevance,timeliness,or completeness of
this outside information.Further,the order of the references is not
intended to reflect their importance,nor is it intended to endorse
any views expressed or products or services offered by the
authors,of the references.
[11 Wind Turbine Icing and Public Safety-a Quantifiable Risk?
Colin Morgan and Ervin Bossanyi of Garrad Hassan, 1996.
[21 Assessment of Safety Risks Arising From Wind Turbine Icing:
Colin Morgan and Ervin Bossanyi of Garrad Hassan,and
Henry Seifert of DEWI,1998.
[31 Risk Analysis of Ice Throw From Wind Turbines:Henry Seifert,
Annette Westerhellweg,and Jurgen Kr6ning of DEWI,2003.
[4) State-of-the-Art of Wind Energy in Cold Climates:produced by
the International Energy Agency,lEA, 2003.
[S] On-Site Cold Climate Problems:Michael Durstewitz,Institut fur
Solare Energieversorgungstechnik e.V.(ISET),2003.
[61 Wind Energy Production in Cold Climate:Tammelin,Cavaliere,
Ho[ttinen,Hannele,Morgan,Seifert,and Santti,1997.
GE Energy J GER-4262(04/06) 2
02006.General Electric Company.All rights reserved.
GER-4262(04/061
Critique of the Noise Analysis
of the Draft Supplemental Environmental Impact Statement
for the Black Oak Wind Farm
Legend
Sound Level
35 dBA
40 dBA
45 dBA
50 dBA
�►�' � X� Y l - 55 dBA
((("' � • Turbines
LL El Occupied Structures
t�owl ♦ -
t
i d •� �
cro
April 20, 2016
Prepared by Les Blomberg, Noise Pollution Clearinghouse, PO Box 1137, Montpelier VT 05601
Contents
Critique of the Noise Analysis of the Draft Supplemental Environmental Impact Statement for the Black
Oak Wind Farm
Introduction............................................................................................................
I. Understanding Noise and Noise Pollution................................... ........., ............................................3
Noise:a sound that interferes with a task,function, process, health or wellbeing;a sound that is
inharmonious or out of place................_.. .._.................. ...................._ ......... ......._........................3
Noise Pollution:A Noise Emitted into the Environment ......................................................................4
When Is Noise Pollution a Problem?.....................................................................................................4
11. Quiet Is the Expectation in Rural Areas ..............................._..................._..................... ....................5
111.Wind Turbine Noise is Different from Other Noise Sources:...............................................................9
IV. Critical Questions the DSEIS Noise Analysis Failed to Answer... .....................................................11
V. DSEIS Fabricated a Local Regulatory Standard and Made a Mess of the Local Standard Assessment
.... .......... ...... ...... .. ... ..... 12
VI. DSEIS Fabricated an Ambient Noise Level and Messed Up the NYSDEC Criterion of Significance
Assessment................................................................._....._......._.............................................................14
VII. DSEIS Modeling Is Unreliable.......................................,..........._......................._................................20
VIII. DSEIS Noise Monitoring is Unreliable............................._................................................................21
IX. DSEIS Noise Modeling Shows Significant Increases Above HIS Noise Modeling..............................22
X.The Project Causes Significant Noise Impacts Even If Only DSEIS Data Is Considered.. ..._..............24
XI.As Many as 30 Non-Participating Residences Meet the DSEIS Criterion of Significant Noise Impact
............................................................................................................... ........................ ..25
XII.As Many as 53 Non-Participating Residences Meet the DSEIS Criterion for Significant Noise Impact
atNight ............................................................_........................._..............,...._........._..............................28
XIII.The DSEIS Understated the Scope of the Project and Shielded Noise Impacts from Scrutiny........30
Conclusion........................................._............................._.......................................................................30
2
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II. Quiet Is the Expectation in Rural Areas
Character of the neighborhood (quiet, rural, suburban, urban, etc.) can be one of the best indicators of
the extent of a problem caused by intruding noise. The nature of the soundscape and the expectations
of people who live there significantly shape people's reaction to noise.
In a soundscape with a quiet background, noise is much more intrusive. A 55 decibel noise, which might
be around the background level in an urban area near roadways, could be 30 decibels above the
background in a rural setting. As a rough approximation, each 10 decibel increase is a doubling of the
loudness,'so the noise would dominate the soundscape, being 8 times louder than the background.
55 dBA 55 dBA
—50 dBA —50 dBA
—40 dBA —40 dBA
—30 dBA —30 dBA
—20 dBA —20 dBA
—10 dBA —10 dBA
0
Figure 1.Graphic Noise Thermometer
The noise thermometer shows that the loudness of noise doubles with each 10 dBA increase in the noise
level. The noise on the left is 25 dBA, a common level for a rural area at night. The noise on the right is
55 dBA. It is 8 times louder than the 25 dBA noise. A 45 dBA noise would be four times as loud. A 45
dBA or 55 dBA noise would absolutely dominate a rural nighttime soundscape.
The other factor important in the character of the neighborhood is the community's expectation. Rural
communities tend to have a greater expectation of and place a greater value on quiet. An ISO noise
standard notes that this expectation for quiet can account for a 10 decibel difference in reaction to
noise.
The figure below provides the results of an interesting study that confirms the expectation for peace and
quiet in rural areas. The number one expectation of rural living, among urban, suburban, and rural
residents is that rural areas are quiet.
EPA, 1981, Noise Effects Handbook,7-2.
5
Item Agree Undecided Disagree Agree Undecided D,saggee Agree Undecided Disagree
Rural tile brings out the best in
Rural families are more cioSeknit
Because rural life 1%closer to
Rural communities are the most
work and play
Rural people are more likely than
are
are more characteristic of rural
communities than other areas,
Life in niral communities is less
There is less crime and violence
and quiet than do other areas,
u Number m cases varies slightly from item m item due m missing data.
u Emphasis added.
rouwz. Responses in percent from rural,urban and suburban residents to items dealing with positive images of rural life
(after Willits er,u.1nno.
Schomer, 20O1,Assessment of Noise Annoyance, 27
Figure 2. Expectation mf Quiet in Rural Areas
Character of the neighborhood played a central role in the EPA's development of a 55 dBA criterion.
This is because their data on the community response to noise was essentially unusable before the
noise levels were adjusted or normalized to an urban residential neighborhood.
Figure 3 below shows the EPA data on community response to noise, before it was normalized.
You can see that a noise level that falls below 50 dBA might result in no reaction or widespread
reaction. A noise between 50 dBA and 60 dBA might cause no reaction, sporadic complaints,
widespread complaints, or several threats of legal action. There appears tobe little relationship
between noise level and community response.
The problem was that the EPA data focused solely on the source noise and not the existing noise
level and expectation of the community. When the EPA took that existing soundscapeinto
account,the results were much better. In this case there is a clear relationship between
'
increasing noise and increasing community response. See Figure 4.
The EPA had to adjust or normalize its data to an urban residential situation. The adjustments
tp the data that the EPA made are given in Figure 5. Quiet suburban or rural communities were
adjusted 10 decibels; normal suburban communities were adjusted 5 decibels. In addition,
communities with no prior experience with intruding noise were adjusted another 5 decibels.
COMMUNITY REACTION _ +
VIGOROUS ACTION
SEVERAL THREATS
OF LEGAL ACTION *•• s ■
OR STRONG APPEALS
TO LOCAL OFFICIALS
To STOP NOISE
WLDESPREAO COMPLAINTS
OR SINGLE THREAT
e ■ seas a. . . a
OF LEGAL ACTION
Sf'+7RADI C � a a •
COMPLAINTS `
NO REACTION
ALTHOUGH NOISE I5 : +• ; ss e• •• a
GENERALLY NOTICEABLE
40 50 60 70 $O 90
OUTDOOR DAY MIGHT SOUND LEVEL OF INTRUDING NOISE IN dB RE 20 MIcRO VA-CCAL5
Figure 3. EPA Data: Community Reaction vs Sound Pressure Level. (Information on Levels
of Environmental Noise Requisite to Protect Public Health and Welfare with an Adequate
Margin of Safety, EPA, 1974).
COI+RVOITY REACTION
VIGOROUS ACTION •+
SEVERAL THREATS
OF LEGAL ACTION .
OR STRONG APPEALS
TO LOCAL OFrICIALS
TO STOP NOISE
WIOESPREAO COMPLAINTS a
OR SINGLE THREAT •• •• « "• ••
OF LEGAL ACTION « � • •
DATA NORMALIZED To;
SPORADIC «• RESIDENTIAL URBAN RESIDUAL NOISE
COMPLAINTS SQUE PRIORI EXPOSURE
WINDOWS PARTIALLY OPEN
NO PURE TONE OR IMPLUSES
NO REACTION -
.
ALTHOUGH NOISE IS `s• � • �•...r
GENERALLY NOTICEAOLE
40 SO 60 70 130 90
eOWALIZED OUTDOOR DAY/NIGHT SOUND LEVEL Or 1I4TRUDING N01K III dS
Figure 4. EPA Data: Community Reaction vs Sound Pressure Level. (information on Levels
of Environmental Noise Requisite to Protect Public Health and Welfare with an Adequate
Margin of Safety, EPA, 1974).
7
CORRECTIONS TO BE ADDED TO THE MEASURED DAY-NIGHT SOUND
LEVEL(LA OF INTRUDING NOISE TO OBTAIN NORMALIZED La„
Type of l Amount of Correction
;Correction
Description to be Added to
Measured Ld„ in dB
!Seasonal Summer(or year-round operation) €0
,Correction Winter ;only(or windows always closed) �-
5
arletctiesrb d from industrial ral activite1 �_ _.. .__ _... ..._._ _... ._
community note from
1 g y and +10
trucking)
;Correction - .-- -----m
jfor Outdoor Normal suburban community (not located near �+5
Noise Level #industrial activity)
;Measured Urban residential community (not immediately
lin Absence ?adjacent to heavily traveled roads and industrial 10
Hof Intruding }areas)
Noise noisy urban residential community (near relatively _5�
busy roads or industrial areas)
'Very noisy urban residential community 10
to prior experience with the intruding noise ',+5
=Community has had some previous exposure to
?intruding noise but little effort is being made to
E 'control the noise. This correction may also be
`applied in a situation where the community has not 0
been exposed to the noise previously,but the
;Correction people are aware that bona fide efforts are being
!for Previous i
nade to control the noise.
xposure & I .....
!Community lCornmunity has had considerable previous
Attitudes °exposure to the intruding noise and the noise `.--5
E maker's relations with the community are good
Community is aware that operation causing noise is
,'every necessary and it will not continue indefinitely.
This correction can be applied for an operation of -10
limited duration and under emergency
j rcumstances.
E
Pure Tone No pure tone or impulsive character 0
for Impulse �
Pure tone or impulsive character present [4-5
0
Figure 5. EPA Normalization Factors (EPA, Information on Levels of Environmental Noise
Requisite to Protect Public Health and Welfare with an Adequate Margin of Safety, 1974).
8
The EPA recommendation of 55 dBA which is found in the NYSDEC criterion of significance, is a
recommendation for urban residential neighborhoods. For Enfield, New York, one would subtract 10
dBA from 55 because it is a quiet rural area, 5 dBA because it has no prior experience with wind
turbine noise, and 5 dBA because of the character of turbine noise. A noise level of 35 dBA is
necessary to protect the rural area using the EPA data.
The more important criterion of significance in the NYSDEC document is the 6 dBA increase criterion.
The EPA noted that, "The data in Figure D-7 [Figure 4 in this report] indicates that widespread
complaints may be expected when the normalized value of the outdoor day-night sound level of the
intruding noise exceeds that existing without the intruding noise by approximately 5 dB, and
vigorous community reaction may be expected when the excess approaches 20 dB. The standard
deviation of these data is 3.3 dB about their means and an envelope of+5 dB encloses
approximately 90 percent of the cases. Hence, this relationship between the normalized outdoor
day-night sound level and community reaction appears to be a reasonably accurate and useful tool
in assessing the probable reaction of a community to an intruding noise and in obtaining one type of
measure of the impact of an intruding noise on a community." (EPA, 1974, D-20.)
III. Wind Turbine Noise is Different from Otber Nome Source-
Wind turbine noise is different from traditional noise sources. Wind turbine noise elicits reactions that
are more commonly associated with much higher sound pressure levels.
Some of the factors that make wind turbine noise unique are listed below.
• Wind turbines are an overhead source. Overhead sources are difficult or impossible to block
with barriers, and they enter houses both from above and the sides, often requiring more insulation.
• Wind turbine noise is often more prominent in the evening and nighttime.
Typical noises tend to better correlate with when people are working. Wind turbine noise often
is not masked by wind due to wind gradients (low ground wind speeds but higher turbine height
wind speeds).
• Wind turbine noise is unpredictable. People cannot know ahead of time when the noise will
be present, so that they can plan around the noise.
• Wind turbine noise is not reciprocal. Typical rural noises have no impact on wind turbines, but
wind turbines impact rural life.
• Wind turbine noise is unique and unusual in a rural environment. There is nothing
equivalent to it.
• Wind turbine noise is not constant. It has a time varying component that various people
have described as beating, swishing, or thumping.
• Wind turbine noise has a low frequency that more easily penetrates homes.
• In rural areas,wind turbines are audible at a greater distance than almost every other rural
noise source.
9
That wind turbine noise is different from other noise sources can be seen from studies of individual
reactions to noise. Annoyance from wind turbine noise has been studied and dose-response
relationships(the quantification of how impact increases as the noise increases)for turbine noise has
been developed by Pedersen and Waye, as well as other researchers. The salient aspect of this research
is that the dose-response curve for wind turbine noise is much steeper than for other noise sources. For
the same noise level, people find wind turbine noise much more annoying than other noise sources such
as road noise or aviation noise. This is due to the unique characteristics of wind turbine noise and
possibly the interaction with visual impacts that may draw people's attention to the turbine noise.
Pedersen's 2004 paper published in the Journal of the Acoustical Society of America,the premier journal
in the field,compares the dose-response curves for turbine noise and other noise sources, and is shown
in Figure 6.
Perception and annoyance due to wind turbine
noise--a dose—response relationship
E;a Pi°Cer:¢n"a.t Ker;tas PersSan 4Yd'r`Eti
50 r _ t 5.., re w}n I-11 1u, i v n
46
40 wind turbines
Aircraft
35
€ 30 i
25 d Road traffic
20 �r
i 15 Railways
10 eJ
5
0
432 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70
Sound exposure(MA)
Sound exposure is for wind turbines calculated A-weighted Lam,
for a hypothetical time period and for transportation DNL.
3488 J Accust.Sac.Am„Vol.118,No.8,December 2044 E Pedersen and K Per—Waye Annoyance due W—d WIN-notse
Figure 6.Wind Turbine Noise Elicits a Greater Response at Lower Noise Levels than Other Noise
Sources
It is clearfrom Figure 6 that wind turbine noise is very different from other noise sources: it is much
more annoying and at lower noise levels than other noise sources. Consequently,to protest the public
from the effects of wind turbine noise, much lower noise limits are needed.
2 The primary measure of noise effects on humans for the last 60 years has been annoyance. Annoyance is
perhaps the most easily studied noise effect,and until the advent of the documentation of health effects related
to noise in the 21st century and the release of World Health Organization's Burden of Disease from Environmental
Noise in 2009,annoyance was the best metric to quantify noise effects. Annoyance acts as a composite measure
of human response to specific health and other effects of noise. People who,for example,suffer sleep
interference,communication interference,activity interference,or stress related effects will likely report that they
are annoyed by noise. People are annoyed because of specific effects of noise they experience.
10
IV. Critical Questions the DSEIS Noise Analysis Failed to Answer
An environmental assessment is an evaluation of the known or potential environmental consequences
of a proposed action. According to the SEQRA Handbook, "The draft EIS is the primary source of
environmental information to help involved agencies consider environmental concerns in making
decisions about a proposed action. The draft also provides a basis for public review of, and comment on,
an action's potential environmental effects. The draft EIS accomplishes those goals by examining the
nature and extent of identified potential environmental impacts of an action, as well as steps that could
be taken to avoid or minimize adverse impacts." (SEQRA Handbook, 117.)
Noise, as discussed in Part I above, has a host of impacts. The problem is that the DSEIS didn't identify
any relevant areas of environmental concern related to noise,3 didn't thoroughly analyzed them for
significant adverse impact, and provided no reason for ignoring the environmental impacts of noise.
Figure 7 lists impacts of noise that were not considered in the DSEIS and were not analyzed in the DSEIS.
A red X means the question was not addressed;green check means it was addressed, and a very small
green check means it was somewhat addressed. What is truly striking is that these were not even
addressed in the Noise Appendix H of the DSEIS.
Noise Impacts Not Investigated in the DSEIS
NOISE IMPACT THAT SHOULD HAVE BEEN INVESTIGATED Investigated in
DSEIS? APP.H?
How will the turbine noise change the character of the area? X X
Where will turbines be audible? X X
Where will turbine noise dominate current ambient conditions? X X
Will neighbors be able to escape the noise by going indoors? X X
Where will turbines be audible inside homes? X X
Where will the noise be annoying?Highly annoying? X
Where will the noise interfere with outdoor activities or their enjoyment? X X
How will the community react to the turbine noise? X X
Predicted response based on EPA's Levels Document,Table D-7? X X
Will the noise change the acceptable uses of neighbors'properties? X X
Where will lands be unsuitable for future residential use? X X
Where will health impacts of noise occur? X X
Cardiovascular/stress related effects? X X
Sleep interference,awaking,sleep stage changes,difficulty falling asleep? X X
Secondary sleep interference effects such as fatigue,reduced performance,irritability? X X
Decreased helping behavior and increased aggressive behavior? X X
Decreased performance? X X
What will be the noise effects on wildlife and where will they occur? X X
Will infrasound from the turbines cause impacts? X X
Figure 7. Noise Impacts Not Investigated in the DSEIS.
3 The DSEIS did mention "annoyance," but only in passing,and only with respect to noise in the 31.5 and 63 Hz
frequency bands.
11
It is not reasonable to ignore noise impacts, including health related impacts, in a DSEIS noise analysis.
The point of the EIS process is to identify impacts early in the DSEIS process and to disclose them to the
public, so that they can be mitigated if needed. This is not a problem that can be addressed by adding a
couple paragraphs to the FSEIS, because the impacts would have been hidden from the public until the
final moment when the public can no longer comment or participate. A new DSEIS is needed to address
these impacts.
V. DSEIS Fabricated a Local Regulatory Standard and Made a Mess of the Local
Standard Assessment
As noted in Part IV above, the DSEIS did not analyze or even mention noise impacts, or any criteria of
significant impact related to any specific noise impact. Instead,the DSEIS relied on the local wind law
and the NYSDEC criterion of significance. Part V shows that the DSEIS botched the local standard noise
analysis. (The critique of the NYSDEC criterion of significance analysis is found in Part VI below.) The
crux of the problem related to the DSEIS, FEIS, and DSEIS treatment of the local regulatory noise limit is
that these documents used as a test for significant adverse environmental impacts a criterion that is
entirely fabricated. The result is that the DSEIS noise assessment is fatally flawed and needs to be
corrected before the DSEIS can take a hard look at the noise impacts.
The DSEIS states that "[t]he criteria against which to compare the predicted noise from the Modified
Project to determine if any significant adverse environmental impacts might result include the local
regulatory noise limits ....The same assessment criteria described in the DEIS for the Approved Project
were applied to the Modified Project...." (DSEIS, 37.)
Note that the DSEIS didn't specifically say what the Enfield regulatory noise limit in is in the DSEIS noise
analysis. Appendix H of the DSEIS states: "The Town of Enfield's Local Law Number 1 of 2009, entitled
'Wind Energy Facilities Local Law' sets a sound limit of 60 A-weighted decibels (dBA) at the nearest Non-
Participating residence." (DSEIS, Appendix H, 1.) Table 13 on page 21 of the DSEIS states that sound
levels "[s]hall not exceed 60 decibels at nearest offsite residence." Neither of these statements,
however, is true. The standard in the DSEIS is completely fabricated.
The real local regulatory limit can be found in Local Law Number 1 of 2009, tilted "Wind Energy Facilities
Local Law." Section 17 reads as follows:
Sound Levels and WTG Setbacks. The following standards and requirements shall apply
to each WTG:
A. Sound Levels. The statistical Sound Pressure Level generated by a WTG
shall not exceed 60 decibels above ambient sound levels measured at the nearest off-
Site Residence.
The authors of the DSEIS presumably didn't use this standard as a criterion of significance because they
realized it is a totally ridiculous standard. The standard of 60 decibels above ambient sound levels is
12
unsupported by any science. A 60 decibels above ambient standard would permitted noise levels that
would lead to significant impacts including hearing loss and a host of other health consequences.
It is important to understand that a 60 dBA above ambient level is 100 dBA,at least according to the
DSEIS. The DSEIS claims that the ambient levels are 39.8 dBA. If we round that to 40 dBA,60 dBA above
ambient is 100 dBA. This is so loud that noise at this level can cause numerous health problems. To
protect against hearing loss,for example,the US EPA and the World'Health Organization recommend
people be exposed to this level for less than 90 seconds each day.
I have surveyed "above ambient" noise standards from across the United States in a fourth coming
paper entitled, Preliminary Results of an Analysis of 491 Community Noise Ordinances.4 "Above
ambient"standards are a common and accepted regulatory tool, but the Enfield standard of 60 decibels
above ambient is far from reasonable—it is an outlier of the outliers. The Town of Enfield standard did
not qualify for inclusion in the survey,-'but if it had,it would have been the worst noise ordinance in the
country, by 45 decibels. Here are the rankings of the least protective "above ambient standards in the
United States,if Enfield's had been included:
1. 60 dB Enfield, NY
2. 15 dBA Norman,OK
2. 15 dBA Kenosha,WI
2. 15 dBA West Valley City, UT
In the study, a 15 dBA"above ambient"criterion was an outlier,used by only three communities.
"There were 47 communities employing an over ambient standard. Over ambient standards range from
0-15 dBA over ambient,with the median and mode being 5 dBA." (Blomberg, 2016.)
Moreover,scientific research conducted by the US EPA suggests that a 5 dBA increase or greater can
cause widespread complaints. According to the US EPA:
The data... indicate that widespread complaints may be expected when the normalized
value of the outdoor day-night sound level of the intruding noise exceeds that existing
without the intruding noise by approximately 5 dB,and vigorous community reaction
may be expected when the excess approaches 20 dB.
EPA, 1974, D-206
The authors of the DSEIS probably didn't realize that the local regulation was set 55 decibels above the
typical level in regulations in the United States,45 decibels above the next highest standard in the
United States, and 40 decibels above the level where the EPA found vigorous community reaction.
4 Blomberg,2016,Preliminary Results of an Analysis of 491 Community Noise Ordinances, Institute of Noise Control
Engineering,Noise-Con 2016.
5 All of the regulations in the 491 ordinance sample came from communities with greater than 60,000 people.
6 US EPA, 1974,Information on Levels of Environmental Noise Requisite to Protect Public Health and Welfare with
an Adequate Margin of Safety, D-20.
13
They, nonetheless,seem to realize it is a ridiculous standard because the 60 decibels above ambient
standard is not mentioned in the DSEIS, but the law that contains it is referenced indirectly.'
Moreover, neither the HIS(2014) nor the DEIS(2013)mention the 60 decibel above ambient local
standard. The DEIS, like the DSEIS,fabricates a new standard: "The Town's Wind Energy Facilities Local
Law sets a sound limit of 60 dBA at the nearest non-participating residence" (DEIS, 191). These
documents make two very significant changes to the local regulatory standard: removing"above
ambient" changes the standard from a relative-to-ambient standard to an absolute standard,and the
addition of the"A" after"dB"adds a frequency weighting to the standard that does not appear in the
text of the local regulation. These changes to the local noise limits are arbitrary and not justifiable.
Faced with a ridiculous local standard with no foundation in science,and faced with a problem that has
been known since at least February 20138, instead of correcting the problem,the DSEIS, FEIS,and DEIS
chose instead to fabricate a new noise standard. There are two problems with this. First, if the DSEIS is
going to use local regulatory laws as a criterion of significance, it needs to use those laws. A fabricated
local noise standard for the determination of significant impacts cannot qualify as a "hard look."
Second,only the Enfield Town Board,and not the authors of the DSEIS(and earlier DEIS and FEIS),can
change the noise standard,and those changes must be done in a manner consistent with local and state
laws.
The town must correct its local wind turbine noise regulatory limits before the DSEIS can take a hard
look at the noise impacts of the project,and the DSEIS must correct the fabricated local noise limits with
which it judges significant noise impacts before the DSEIS can be accepted. The fabricated local
regulatory limits cannot be considered a criterion for significant adverse environmental impacts.
VI. DSEIS Fabricated an Ambient Noise Level and Messed Up the NYSDEC
Criterion of Significance Assessment
Parts IV,V, and VI examine the inadequacies of the DSEIS noise analysis. In Part IV we noted that the
DSEIS did not consider any criteria of significance with respect to specific noise impacts. In Part V,we
showed that the DSEIS used a fabricated local standard as a criterion of significance. Part VI will show
that the DSEIS ignored critical parts of the NYSDEC's guidance and fabricated an ambient level with
which to assess significance that vastly understated noise impacts.
"The criteria against which to compare the predicted noise from the Modified Project to determine if any
significant adverse environmental impacts might result include the local regulatory noise limits and the noise
assessment guidelines found in the NYSDEC's Assessing and Mitigating Noise Impacts(2000).The same assessment
criteria described in the DEIS for the Approved Project were applied to the Modified Project...."(DSEIS,37.)
8 In a February 2013 report entitled Acoustic Study of the Black Oak Wind Farm by Tech Environmental,that later
became Appendix T of the DEIS,the authors state:"The Wind Energy Facilities Local Law sets a sound limit of 60
dBA at the nearest non-participating residence." In a footnote,they acknowledge changing the standard:"Actually
the Local Law states'60 dBA above ambient sound levels'which will be interpreted to mean 60 dBA."(DEIS,
Appendix T,7,emphasis added.) Actually,the local law does not even say"dBA". It says"60 decibels above
ambient sound levels,"not 60 A-weighted decibels above ambient. Appendix T knowingly changed the standard
from 60 decibels above ambient to an absolute level of 60 dBA.
14
The DSEIS states that"[t]he criteria against which to compare the predicted noise from the Modified
Project to determine if any significant adverse environmental impacts might result include ...the noise
assessment guidelines found in the NYSDEC's Assessing and Mitigating Noise Impacts (2000)." (DSEIS,
37.)
As the DSEIS notes,the NYSDEC's Assessing and Mitigating Noise Impacts(2000)states that"[i]n non-
industrial settings the SPL should probably not exceed ambient noise by more than 6 dB(A)at the
receptor." (NYSDEC,2000, 14.) Moreover, "[t]he goal for any permitted operation should be to
minimize increases in sound pressure level above ambient levels at the chosen point of sound
reception." (NYSDEC, 2000, 13.)
The NYSDEC's Assessing and Mitigating Noise Impacts (2000) notes that "[i]n order to evaluate the
above factors in the appropriate context,one must identify the following: 1) appropriate receptor
locations for sound level calculation or measurement;2) ambient sound levels and characteristics at
these receptor locations; and 3)the sound pressure increase and characteristics of the sound that
represents a significant noise effect at a receptor location." (NYSDEC,2000, 13.)
The DSEIS errored in the selection of receptor locations and in obtaining accurate ambient sound levels
at those locations. The NYSDEC's Assessing and Mitigating Noise Impacts (2000)state:
Appropriate receptor locations may be either at the property line of the parcel on which
the facility is located or at the location of use or inhabitance on adjacent property.The
solid waste regulations require the measurements of sound levels be at the property
line.The most conservative approach utilizes the property line.The property line should
be the point of reference when adjacent land use is proximal to the property line.
Reference points at other locations on adjacent properties can be chosen after
determining that existing property usage between the property line and the reference
point would not be impaired by noise, i.e., property uses are relatively remote from the
property line.
(NYSDEC, 2000, 13, emphasis added.)
The DSEIS did not use the property line locations, and did not assess the adjacent land uses proximal to
the property Lines. Moreover,the DSEIS and Appendix H did not show the property lines in its noise
analysis. Therefore,there is no way the DSEIS could have analyzed the property line noise levels. There
are, however, areas proximal to the property lines that need analysis. For example, areas that are used
as hiking trails or that are intended as home sites for children of the adjoining property owner.
Moreover, noise levels at the property lines exceed 50 dBA in many cases and even exceed 55 dBA
according to the modeling.
15
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i •
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s
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Figure 8. Predicted Noise Levels at the Property Line near Turbine 6.
Figure 8 shows the predicted noise levels near Turbine 6. It is a composite of Figure 3 from Appendix H
of the DSEIS (the dotted contour lines) and Figure 2 of Appendix T of the HIS (the solid contour lines).
According to the legends of these Figures,the red line corresponds to the 55 dBA level;the orange, to
the 50 dBA level. The property lines are shown in white. The red dotted line representing 55 dBA from
the DSEIS turbine configuration clearly touches the property line south of Turbine 6 in Figure 8.This
location has an existing hiking trail nearby.
16
C '
Jeo
-mom
c
Figure 9. Predicted Noise Levels at the Property Line near Turbine C.
Figure 9 shows the predicted noise levels near Turbine C (not shown but inside the dashed red circle). It
is a composite of Figure 3 from Appendix H of the DSEIS (the dotted contour lines) and Figure 2 of
Appendix T of the HIS (the solid contour lines). According to the legends of these Figures, the red line
corresponds to the 55 dBA level; the orange,to the 50 dBA level. The property lines are shown in white.
The orange dotted line representing 50 dBA from the DSEIS turbine configuration clearly crosses the
property line northwest of Turbine C in Figure 9 marked 13.-2-1.1.This location is intended as a home
site for the homeowners children,for which it would not be suitable if it were built.
17
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MON
Figure 10. Predicted Noise Levels at the Property Line near Turbine A.
Figure 10 shows the predicted property line noise levels north of Turbine A from Figure 2 of the DSEIS
Appendix H. The white property line of a non-participating neighbor has been added. From the figure
one can see that the noise levels approach and exceed 45 dBA in this area. There is what the home
owner calls his "second field" in this vicinity. It is a maintained grassy area with a structure.
Ambient levels at these and similar locations are not presented in the DSEIS. In an accompanying report
from the Noise Pollution Clearinghouse,Ambient Sound Levels NeareOWF, ambient levels at these
locations were measured, and they are shown Figure 11.
18
Ambient Sound Levels Near Selected Turbines
Daytime Ambient Nighttime Ambient
Near Turbine 6 31.9 dBA 27.2dBA
Near Turbine C 34.1 dBA 27.1 dBA
Near Turbine A 30.1 dBA NA
Figure 11.Ambient Sound Levels Near Selected Turbines.
According to the DSEIS noise modeling,the predicted noise levels at the above locations are 55 dBA, 53
dBA,and 45 dBA. The results of subtracting the ambient sound levels from Ambient Sound Levels Near
BOWFfrom the projected noise level are shown in Figure 12. The result is the approximate decibels
above ambient that the turbine noise would cause, based on the modeling and the measured ambient
noise levels.
Turbine Noise Level Compared to Ambient Near Selected Turbines
Daytime Nighttime
Near Turbine 6 -23 dBA above ambient -28 dBA above ambient
Near Turbine C -19 dBA above ambient -26 dBA above ambient
Near Turbine A ^15 dBA above ambient NA, but most likely>-15 dBA
Figure 12.Turbine Noise Level Compared to Ambient Near Selected Turbines.
By not considering the property line as the appropriate receptor location,the DSEIS missed clear
exceedances of the NYSDEC's 6 dBA above ambient criterion of significance. There are many possible
examples like these around the project, since there are miles of property line around the project. These
three examples clearly show that significant noise level increases do occur. The DSEIS failed to identify a
significant impact of greater than a 6 decibel increase because it failed to take a hard look. In fact, it
failed to take any look along property lines.
The NYSDEC document notes that increases in sound pressure level of over 20 dB are "very
objectionable to intolerable." The DSEIS failed to identify a very significant increase in noise levels.
There is yet another way the DSEIS failed to take a hard look at the noise impacts. There are no ambient
measurements near the three newly proposed turbine locations. The DSEIS relied on measurements
taken for the original DEIS that were taken south and west of Turbines B and C, north and west of
Turbine A, and generally over a mile away. The language of the NYSDEC document is clear. To assess
the noise impact the DSEIS should have identified "1)appropriate receptor locations for sound level
calculation or measurement;2) ambient sound levels and characteristics at these receptor locations;
and 3)the sound pressure increase and characteristics of the sound that represents a significant noise
effect at a receptor location." (NYSDEC, 2000, 13.) The DSEIS assessed the increase in noise levels for
19
three new turbines without actually measuring the ambient sound levels at any nearby receptor
location.
Finally,the DSEIS used a composite ambient noise level of 39.8 dBA. Part VIII below will undermine this
value more fully, but there is a specific problem with this value in that it doesn't represent a value for
any particular receptor location. It is an average level over both time and space. The average of Leq
values is not linear(meaning that the average of 40 dBA and 30 dBA is not 35 dBA, but 37 dBA. The
average is logarithmic and more heavily weighted to the higher noise levels. Moreover, by averaging the
noise levels, the impact on quieter locations and quieter times is lost. For example, Table 1 of the
HMMH Noise Study for Black Oak Wind Farm Project,found in Appendix T of the DEIS, gives nighttime
Leq values of 25.3, 30.1, 29.1 and 26.1 dBA for locations ST-1, ST-2, ST-3, and ST-4. Using 39.8 dBA as
the average background over all the times and places monitored, means that nighttime impacts at the
specific locations are understated by 14.5, 9.8, 10.7, and 13.7 dBA respectively. Moreover,the DSEIS
made no ambient measurements in the vicinity of the proposed new turbine sites. The only ambient
measurements in these areas were reported in,Ambient Sound Levels Near BOWF. The only ambient
levels in evidence do not support the use of 39.8 dBA as the ambient near the new Turbines A, B, and C.
VII. DSEIS Modeling Is Unreliable
The DSEIS noise analysis is based on estimated future noise levels of the wind turbines derived by noise
modeling. We have asked the town and applicant to provide that modeling so that we can examine it
and verify that it correctly models the proposed project. Providing the noise modeling is very simple,
and can be done by copying and saving a computer file to a flash drive or an internet file sharing
platform. They refused, however,to provide the modeling.
In land use, planning, and EIS processes, noise modeling is routinely provided to interested parties so
that they can verify the accuracy of the modeling. In fact,there is no other way to verify the accuracy of
the modeling. Without our being able to examine the modeling, it is nothing more than the output of a
black box. It is a black box because the inner workings and implementation are hidden from the Board
and from interested parties. It is "black." It is secret. BOWF will not allow us or the Board to see how it
arrived at the output. All we have is an output, a noise level,with no supporting evidence. Output
without supporting evidence is reallyjust speculation and conjecture. All reference to the output in the
DSEIS should be deleted.
The opposite of a black box system is one in which the inner workings are available for inspection, a
"glass box." Had the modeling been provided to us, we and the Board would be able to understand how
the output was arrived at, and whether or not it was accurate.
A thought experiment will show the weakness of relying on black box modeling. If I submitted a report,
claiming that the output of my modeling documented significant adverse environmental impacts, but
that the modeling must remain secret,the Board would reject that claim as unverified and unverifiable.
For the very same reason, BOWF's modeling output should be rejected as unverified and unverifiable.
BOWF has given the Town an "answer"to a math problem, but not shown its work.
20
BOWF claims that the modeling data contains proprietary information. This is not true and not
necessary. There is no need for secret settings and secret modeling to estimate the noise levels for the
DSEIS. The only reason for BOWF to not provide the modeling data is because BOWF is afraid it will not
survive scrutiny. If BOWF's black box can't survive daylight,the output of the black box has no place in
the DSEIS. All reference to the output should be deleted.
VIII. DSEIS Noise Monitoring is Unreliable
The case against the reliability of BOWF's noise monitoring is the same as the one against the
reliability of its noise modeling. It is impossible for the Board and us to know how the background level
of 39.8 dBA was derived.
The DSEIS noise analysis is based on changes from the existing or ambient noise levels. We have asked
the town and applicant to provide their monitoring data so that we can examine it and verify that it
correctly represents the existing conditions. Providing the noise monitoring data is very simple and can
be done by copying and saving a computer file to a flash drive or an internet file sharing platform. They
refused, however,to provide the monitoring.
In land use, planning, and EIS processes, noise monitoring data is routinely provided to interested
parties so that they can verify the accuracy of the monitoring. In fact,there is no other way to verify the
accuracy of the monitoring. Without our being able to examine the monitoring, it is nothing more than
the output of a black box. It is a black box because the inner workings and implementation is hidden
from the Board and from interested parties. It is "black." It is secret. BOWF will not allow us or the
Board to see how it arrived at the output. All we have is an output, a noise level,with no supporting
evidence. Output without supporting evidence is really just speculation and conjecture. All reference to
the modeling and modeling output in the DSEIS should be deleted.
The opposite of a black box system is one in which the inner workings are available for inspection, a
"glass box." Had the monitoring data been provided to us, we and the Board would be able to
understand how the output was arrived at, and whether or not it was accurate.
A thought experiment will show the weakness of relying on black box monitoring data. If I submitted a
report, claiming that the output of my monitoring documented significant adverse environmental
impacts, but that the monitoring data must remain secret, the Board would reject that claim as
unverified and unverifiable. For the very same reason, BOWF's monitoring output should be rejected as
unverified and unverifiable. BOWF has given the Town an "answer' to a math problem, but not shown
its work.
BOWF claims that the monitoring data contains proprietary information. This is not true and not
necessary. There is no need for secret processes to establish existing noise levels for the DSEIS. The
only reason for BOWF to not provide the monitoring data is because BOWF is afraid it will not survive
scrutiny. If BOWF's black box can't survive daylight, the output of the black box has no place in the
DSEIS. All reference to the monitoring and monitoring output of 39.8 dBA should be deleted.
21
IX. DSEIS Noise Modeling Shows Significant Increases Above FEIS Noise
Modeling
Parts IV-VIII have identified inadequacies in the DSEIS. The DSEIS should be rejected, not only because
of what isn't there (such as a noise impacts analysis, a local regulatory law analysis, and an adequate
above ambient noise analysis, and the supporting evidence as discussed in Parts IV-VIII), but also
because the evidence in the DSEIS leads to the conclusion that significant noise impacts exist.
Specifically,the DSEIS modeling shows significant increases in turbine noise levels and in land impacted
by turbine noise over the HIS modeling.
h.ai. --- -
' t'- 47egend �
c Sound Level
35 dBA
yZir 40 dBA
45dBA
Affl _ 50 dBA
aid
55 dBA
n. 0 Turbines
U Occupied Structures
I •
ilk
0 500 1,000 :CCO 3.000 4 COC
Figure 13. Predicted Noise Levels from the DSEIS and FEIS.
22
Figure 13 shows the predicted noise of the DSEIS and FEIS. It is a composite of Figure 3 from Appendix H
of the DSEIS and Figure 2 of Appendix T of the FEIS. The dashed contour lines are the noise levels from
the DSEIS. They are superimposed on top of the map from the HIS and its solid contour lines.
According to the legends of these Figures,the red line corresponds to the 55 dBA level;the orange,to
the 50 dBA level;the yellow,to the 45 dBA level; and the green,to the 40 dBA level. The property Fines
are shown in white. Similar maps could be made for the other turbine configurations in the DSEIS.
Several indicators of significant noise impacts can be derived from this map:
1. The total area of noise impacted land is much greater in the DSEIS. This can be seen from the
map,and also from analysis of the map. Figure 14 below describes percent increase in lands
above 55 dBA,50 dBA, and 45 dBA.
Contour line FEIS Figure 2:Area SgFt DSEIS Figure 3:Area SgFt % Increase
Red (Lands>55 dBA) 552,000 1,622,000 1945/6
Orange (Lands>50 dBA) 5,930,000 10,739,000 81%
Yellow(Lands>45 dBA) 21,697,000 29,446,000 36%
Figure 14. Percent Increase in Land Impacted by Turbine Noise.
There are a number of reasons for the increase in lands impacted by turbine noise. One is that
the new locations in the DSEIS result in a greater area of impact. Another possible reason is that
BOWF may have misrepresented the impacts of increasing from 1.7to 2.3 MW turbines to the
Board. In the June 24,2015 letter submitted to the Board it is claimed that the changes from
the 1.7 to 2.3 MW turbines "further minimize and mitigate potential impacts analyzed during
the SEQRA process."The increase could also be due to errors in the modeling, either for the
DSEIS or FEIS. Neither we nor the Board can know for sure because the modeling was not
provided to us so that it could be verified.
2. Many areas with significant increases of 10 dBA or more can be seen by examining the map.
The solid lines represent the HIS noise level The dashed lines represent the proposed DSEIS
noise level. Areas where the solid blue 35 dBA contour line intersect the dashed yellow 45 dBA
line represent areas of a 10 dBA increase. Similarly,areas where the solid green 40 dBA contour
line intersect the dashed orange 50 dBA contour line represent areas of a 10 dBA increase. This
is noticeable around the areas of Turbines B and C to the north,although if an option with
Turbine A were considered the increase in the south would be approximately 10 dBA.
3. Every turbines location has moved enough to alter the noise contour lines_ The change in the
locations of Turbines 4, 5,and 6 are the easiest to see, but the location of all the turbines has
moved. Again, because the noise modeling was not provided to us,we do not know if the
change is due to poor modeling or the BOWF's misrepresentation of the changes being
considered in the DSEIS.
23
X. The Project Causes Significant Noise Impacts Even If Only DSEIS Data Is
Considered
Even if the problems identified in Parts IV-IX are ignored,and only DSEIS data is considered,the DSEIS
shows significant noise impacts. The DSEIS sets out two tests as criteria of significant noise impact.
They are the local regulatory laws and the NYSDEC 6 dBA test:
The criteria against which to compare the predicted noise from the Modified Project to
determine if any significant adverse environmental impacts might result include the
local regulatory noise limits and the noise assessment guidelines found in the NYSDEC's
Assessing and Mitigating Noise Impacts(2000).The same assessment criteria described
in the DEIS for the Approved Project were applied to the Modified Project....
(DSEIS,37.)
As discussed above and in the DEIS,the NYSDEC's Assessing and Mitigating Noise Impacts(2000)
criterion is a 6 dBA increase in noise levels above ambient,or 45 dBA according to the DEIS. Moreover,
the DSEIS actually determined that the noise at four non-participating residences exceeded the criterion
of significant impact. According to the DSEIS, "[t]he noise study completed for the Modified Project
predicted that each alternative under consideration would result in 4 non-participating residences
exceeding the 45 dBA NYSDEC Guideline." (DSEIS, 38.)
After setting out this criterion of significant impact,the DSEIS ignores it and the four cases of significant
noise impact. The DSEIS ignores this result for two reasons. 1) It suggests that"[tjhe 45 dBA level is not
an enforceable regulatory limit." (DSEIS,37.) While this is true, it is irrelevant. The 45 dBA level was
selected by the DSEIS as a criterion of significant impact,and it is that regardless of whether it is also a
legal requirement of the town. 2)The DSEIS also dismisses this criterion because it says three non-
participating residences exceeded the standard in the Findings Statement related to the FEIS. (DSEIS,
38.) This too is not a reason to ignore cases where the noise exceeds the criterion of significance.
Moreover, it is not clear where this claim comes from. The actual modeling output from Appendix K of
the FEIS and Appendix H of the DSEIS show different numbers. See Figure 15.
HIS Modeling DSEIS Configuation 7AB DSEIS Configuration AC DSEIS Configuration BC
ID Residence Total ID Residence Total ID Residence Total ID Residence Total
Status Level Status Level Status Level Status Level
(dBA) (dBA) (dBA) (dBA)
R14 Participating 45.9 R8 Non-Participating 46.2 R8 Non-Participating 46.2 R8 Non-Participating 46.2
R8 Non-Participating 45.8 R45 Participating 45.7 R45 Participating 45.7 R45 Participating 45.8
R16 Non-Participating 45.2 R107 Non-Participating 45.1 R107 Non-Participating 45.1 R50 Non-Participating 45.3
R42 Non-Participating 45.1 R42 Non-Participating 45.1 R100 Non-Participating 45.1
R44 Participating 45.1 R44 Participating 45.1 R42 Non-Participating 45.1
R50 Non-Participating 45.1 R50 Non-Participating 45.1 R44 Participating 45.1
R68 Non-Participating 45 R68 Non-Participating 45 R96 Participating 45.1
R101 Non-Participating 45
Total Participating 1 Total Participating 2 Total Participating 2 Total Participating 3
Total Non-Participating 2 Total Non-Participating 5 Total Non-Participating 5 Total Non-Participating 5
Total 3 Total 7 Total 7 Total 8
Figure 15. Exceedances of the Criterion of Significance in the HIS and DSEIS.
24
In the DSEIS there are either seven or eight homes meeting or exceeding the 45 dBA level of
significance. Five of them are non-participating. With the exception of R8,these are entirely different
residences from the FEIS. They clearly experience a significant impact according to the criterion selected
by the DSEIS. Yet the DSEIS ignores this and does not clearly state how the impacts will be avoided or
mitigated.
Xl.As Many as 30 Non-Participating Residences Meet the DSEIS Criterion of
Significant Noise Impact
The CADNA/A noise model used to estimate future noise levels of the wind turbines in the DSEIS
implements the equations found in the international standard ISO 9313 Part 2. (Appendix H of the FEIS,
1.) This standard has an average error of 3 dB (see Figure 17 below from the ISO standard). This error is
independent of the input uncertainty that the DSEIS claims was accounted for. (Appendix H of the FEIS,
2.) Moreover, the error is independent of the conservative modeling assumptions used in the modeling.
These conservative assumptions are the way noise ought to be modeled: "it should be noted that these
predictions are based on a worst case scenario with conservative assumptions required by ISO-9613-2
propagation standards." (FEIS, 38.)
In addition, it is important to remember the caution ISO 9613 Part 2 gives concerning error:
NOTE 24 The estimates of accuracy in table 5 are for
downwind conditions averaged over independent situations
(as specified in clause 5). They should not necessarily be
expected to agree with the variation in measurements
made at a given site on a given day. The latter can be ex-
pected to be considerably larger than the values in table 5.
ISO 9313 Part 2, page 13
Figure 16: Modeling error in ISO 9613 is an average error
The error is an average error.There can be a much greater error at times. Figure 17 shows Table 5 from
the ISO 9613 Part 2 Standard, which describes the error.
25
ISO 9613-2:1996(E) ®ISO
The use of equations (1) to (5) and (7) to (20) (and in the use of individual equations. Equation (9) is, for
therefore also table 5) is limited to case a): meteoro- example, limited to approximately flat terrain. These
logical conditions only. Case b) is relevant only to the specific limitations are described in the text ac-
use of equations (6), (21) and (22). There are also a companying the relevant equation,
substantial number of limitations (non-meteorological)
Table 5—Estimated accuracy for broadband noise of LA7(DW)calculated using equations(1)to(10)
Height,h 11 Distance,d I
0<d<100m 100m<d<1000m
0<h<5m t3dB ±3dB
5m<h<30m tt dB ±3dB
• h is the mean height of the source and receiver.
d is the distance between the source and receiver.
NOTE—These estimates have been made from situations where there are no effects due to reflection or attenuation due
to screening.
!SO 9613 Part 2, page 14
Figure 17:Table 5 from ISO 9613 Showing a 3 dBA Error
It is critical that the accuracy of the modeling be taken into account when assessing noise impacts with
respect to a criterion of significance. The modeling error must be added to the modeled results when
testing for compliance with significance criteria; otherwise the DSEIS risks missing significant noise
impacts. This was not done. All of the contour lines and output noise results at the various receptor
locations should be increased by 3 dBA.
The accuracy issue cannot be ignored because it is a plus or minus 3 dBA. What this means is that
sometimes the value might be 3 dBA more than predicted, and sometimes 3 dBA less. The critical point
is that there will be times when it is 3 dB more than the predicted output, and those times will lead to
exceedances of the DSEIS criterion for significant impact.
If the accuracy of the CADNA/A modeling had been accounted for by adding 3 dBA to the output,the
results would be as shown in Figure 17.
26
Configuation 7AB Configuration AC Configuration BC
ID Residence Total ID Residence Total ID Residence Total
Status Level Status Level Status Level
(dBA) (dBA) (dBA)
R8 Non-Participating 49.2 R8 Non-Participating 49.2 R8 Non-Participating 49.2
R45 Participating 48.7 R45 Participating 48.7 R45 Participating 48.8
R107 Non-Participating 48.1 R107 Non-Participating 48.1 RSO Non-Participating 48.3
R42 Non-Participating 48.1 R42 Non-Participating 48.1 R100 Non-Participating 48.1
R44 Participating 48.1 R44 Participating 48.1 R42 Non-Participating 48.1
R50 Non-Participating 48.1 R50 Non-Participating 48.1 R44 Participating 48.1
R68 Non-Participating 48 R68 Non-Participating 48 R96 Participating 48.1
R40 Non-Participating 47.9 R40 Non-Participating 47.9 R101 Non-Participating 48
R105 Participating 47.8 R105 Participating 47.8 R40 Non-Participating 47.9
R39 Non-Participating 473 R39 Non-Participating 47.7 R97 Participating 47.9
R43 Participating 47.5 R100 Non-Participating 47.6 R105 Participating 47.8
R35 Participating 47.3 R101 Non-Participating 47.6 R39 Non-Participating 47.8
R47 Participating 47.3 R35 Participating 47.5 R35 Participating 47.7
R97 Participating 47.2 R43 Participating 47.4 R43 Participating 47.6
R48 Participating 47.1 R47 Participating 47.3 R68 Non-Participating 47.6
R78 Non-Participating 47.1 R20 Participating 47.1 R95 Non-Participating 47.6
R20 Participating 47 R21 Non-Participating 47.1 R47 Participating 47.5
R21 Non-Participating 47 R48 Participating 47.1 R7 Non-Participating 47.3
R70 Non-Participating 46.7 R78 Non-Participating 47.1 R48 Participating 47.2
R7 Non-Participating 46.6 R7 Non-Participating 47 R20 Participating 47.1
R10 Non-Participating 46.5 R96 Participating 47 R21 Non-Participating 47.1
R46 Participating 46.5 R70 Non-Participating 46.7 R99 Non-Participating 47.1
R69 Non-Participating 46.4 R10 Non-Participating 46.6 R103 Non-Participating 47
R22 Non-Participating 46.1 R103 Non-Participating 46.6 R102 Participating 46.8
R5 Non-Participating 46 R46 Participating 46.6 R46 Participating 46.8
R72 Non-Participating 46 R95 Non-Participating 46.6 R78 Non-Participating 46.8
R9 Non-Participating 46 R99 Non-Participating 46.6 R10 Non-Participating 46.4
R1 Participating 45.8 R102 Participating 46.4 R22 Non-Participating 46.2
R11 Non-Participating 45.8 R69 Non-Participating 46.4 RS Non-Participating 46.1
R71 Non-Participating 45.7 R22 Non-Participating 46.2 R70' Non-Participating 45.9
R38 Non-Participating 45.6 R5 Non-Participating 46 R9 Non-Participating 45.9
R76 Non-Participating 45.6 R72 Non-Participating 46 R1 Participating 45.7
R18 Participating 45.5 R9 Non-Participating 46 R11 Non-Participating 45.7
R49 Non-Participating 45.5 R1 Participating 45.8 R18 Participating 45.7
R77 Non-Participating 45.4 1311 Non-Participating 45.8 R13 Participating 45.6
R13 Participating 45.2 R71 Non-Participating 45.7 R49 Non-Participating 45.6
R74 Non-Participating 45.1 R18 Participating 45.6 R38 Non-Participating 45.5
R79 Participating 45 R38 Non-Participating 45.6 R69 Non-Participating 45.5
R76 Non-Participating 45:6 R76 Non-Participating 45.2
R49 Non-Participating 45.5 R94 Non-Participating 45.2
R13 Participating 45.4 R19 Non-Participating 45.1
R77 Non-Participating 45.4 R14 Participating 45
R74 Non-Participating 45.1 R16 Non-Participating 45
R19 Non-Participating 45
R79 Participating 45
Total Participating 14 Total Participating 15 Total Participating 16
Total Non-Participating 27 Total Non-Participating 30 Total Non-Participating 27
Total 38 Total 45 Total 43
Figure 17. DSEIS Modeling Results When the Accuracy of the Model Considered.
27
There are at a minimum, 38 residences exceeding the DSEIS criterion of significance of 45 dBA. The
DSEIS missed these instances of significant impact because it did not take a hard look in doing its noise
assessment.
XII.As Many as 53 Non-Participating Residences Meet the DSEIS Criterion for
Significant Noise Impact at Night
As discussed above in Part VI,the DSEIS used a spatially and temporally averaged ambient level of 39.8
dBA. It was noted that the average is highly weighted to the loudest times and places. At night,when
the ambient is lower,the impact of the noise is greatest. Had the DSEIS used a nighttime average to
assess significant impact, it would have found that 51 non-participating residences experience a
significant noise impact.
Appendix T of the DEIS states that "[a]t night (11:30 pm-5:30am) Leq sound levels generally ranged from
about 25 to 30 dBA." Had the DSEIS used the higher 30 dBA value, a 6 dBA increase would be 36 dBA.
Figure 18 shows the residences that meet or exceed a 36 dBA nighttime criterion of significant impact.
The red shading indicates when the noise level is more than 10 dBA over ambient, or twice as loud as
ambient. (Note that the decibel levels have not been adjusted to account for the modeling accuracy as
in Part XI above.)
Configuation 7AB Configuration ration ACC Configuration BC
ID Residence Total ID Residence Total ID Residence Total
Status Level Status Level Status Level
(dBA) (dBA) (dBA)
R8 Non-Participating 46.2 R8 Non-Participating 46.2 R8 Non-Participating 46.2
R45 Participating 45.7 R45 Participating 45.7 R45 Participating 45.8
R107 Non-Participating 45.1 R107 Non-Participating 45.1 R50 Non-Participating 45.3
R42 Non-Participating 45.1 R42 Non-Participating 45.1 R100 Non-Participating 45.1
R44 Participating 45.1 R44 Participating 45.1 R42 Non-Participating 45.1
R50 Non-Participating 45.1 R50 Non-Participating 45.1 R44 Participating 45.1
R68 Non-Participating 45 R68 Non-Participating 45 R96 Participating 45.1
R40 Non-Participating 44.9 R40 Non-Participating 44.9 R101 Non-Participating 45
R105 Participating 44.8 R105 Participating 44.8 R40 Non-Participating 44.9
R39 Non-Participating 44.7 R39 Non-Participating 44.7 R97 Participating 44.9
R43 Participating 44.5 R100 Non-Participating 44.6 R105 Participating 44.8
R35 Participating 44.3 R101 Non-Participating 44.6 R39 Non-Participating 44.8
R47 Participating 44.3 R35 Participating 44.5 R35 Participating 44.7
R97 Participating 44.2 R43 Participating 44.4 R43 Participating 44.6
R48 Participating 44.1 R47 Participating 44.3 R68 Non-Participating 44.6
R78 Non-Participating 44.1 R20 Participating 44.1 R95 Non-Participating 44.6
R20 Participating 44 R21 Non-Participating 44.1 R47 Participating 44.5
R21 Non-Participating 44 R48 Participating 44.1 R7 Non-Participating 44.3
R70 Non-Participating 43.7 R78 Non-Participating 44.1 R48 Participating 44.2
R7 Non-Participating 43.6 R7 Non-Participating 44 R20 Participating 44.1
R10 Non-Participating 43.5 R96 Participating 44 R21 Non-Participating 44.1
R46 Participating 43.5 R70 Non-Participating 43.7 R99 Non-Participating 44.1
R69 Non-Participating 43.4 R10 Non-Participating 43.6 R103 Non-Participating 44
R22 Non-Participating 43.1 R103 Non-Participating 43.6 R102 Participating 43.8
R5 Non-Participating 43 R46 Participating 43.6 R46 Participating 43.8
28
R72 Non-Participating 43 R95 Non-Participating 43.6 R78 Non-Participating 43.8
R9 Non-Participating 43 R99 Non-Participating 43.6 R10 Non-Participating 43.4
R1 Participating 42.8 R102 Participating 43.4 R22 Non-Participating 43.2
R11 Non-Participating 42.8 R69 Non-Participating 43.4 R5 Non-Participating 43.1
R71 Non-Participating 42.7 R22 Non-Participating 43.2 R70 Non-Participating 42.9
R38 Non-Participating 42.6 R5 Non-Participating 43 R9 Non-Participating 42.9
R76 Non-Participating 42.6 R72 Non-Participating 43 R1 Participating 42.7
R18 Participating 42.5 R9 Non-Participating 43 R11 Non-Participating 42.7
R49 Non-Participating 42.5 R1 Participating 42.8 R18 Participating 42.7
R77 Non-Participating 42.4 R11 Non-Participating 42.8 R13 Participating 42.6
R13 Participating 42.2 R71 Non-Participating 42.7 R49 Non-Participating 42.6
R74 Non-Participating 42.1 R18 Participating 42.6 R38 Non-Participating 42.5
R79 Participating 42 R38 Non-Participating 42.6 R69 Non-Participating 42.5
R19 Non-Participating 41.9 R76 Non-Participating 42.6 R76 Non-Participating 42.2
R73 Non-Participating 41.8 R49 Non-Participating 42.5 R94 Non-Participating 42.2
R103 Non-Participating 41.7 R13 Participating 42.4 R19 Non-Participating 42.1
R16 Non-Participating 41.7 R77 Non-Participating 42.4 R14 Participating 42
R14 Participating 41.6 R74 Non-Participating 42.1 R16 Non-Participating 42
R41 Non-Participating 41.5 R19 Non-Participating 42 R72 Non-Participating 41.9
R101 Non-Participating 41.3 R79 Participating 42 R77 Non-Participating 41.8
R81 Non-Participating 41.3 R14 Participating 41.8 R62 Participating 41.7
R12 Non-Participating 41.2 R16 Non-Participating 41.8 R74 Non-Participating 41.7
R2 Non-Participating 41.2 R73 Non-Participating 41.8 R73 Non-Participating 41.4
R75 Non-Participating 41.2 R41 Non-Participating 41.5 R41 Non-Participating 41.3
R104 Participating 40.8 R94 Non-Participating 41.5 R71 Non-Participating 41.3
R80 Non-Participating 40.7 R62 Participating 41.3 R79 Participating 41.2
R96 Participating 40.6 R81 Non-Participating 41.3 R93 Non-Participating 41.2
R102 Participating 40.5 R12 Non-Participating 41.2 R12 Non-Participating 41.1
R100 Non-Participating 40.4 R2 Non-Participating 41.2 R2 Non-Participating 41.1
R6 Participating 40.3 R75 Non-Participating 41.2 R104 Participating 41
R62 Participating 40.3 R104 Participating 40.9 R81 Non-Participating 40.7
R95 Non-Participating 40 R80 Non-Participating 40.7 R92 Non-Participating 40.6
R99 Non-Participating 39.7 R6 Participating 40.3 R75 Non-Participating 40.5
R98 Non-Participating 39.4 R93 Non-Participating 40.3 R98 Non-Participating 40.3
R24 Non-Participating 39.2 R92 Non-Participating 39.9 R80 Non-Participating 40.2
R3 Non-Participating 39.1 R24 Non-Participating 39.2 R6 Participating 39.9
R108 Non-Participating 38.7 R3 Non-Participating 39.1 R24 Non-Participating 38.5
R30 Non-Participating 38.6 R97 Participating 39 R3 Non-Participating 38.2
R94 Non-Participating 38.4 R108 Non-Participating 38.7 R61 Non-Participating 37.8
R31 Non-Participating 37.7 R30 Non-Participating 38.6 R53 Non-Participating 37.3
R93 Non-Participating 37.3 R31 Non-Participating 37.7 R91 Non-Participating 37.1
R106 Non-Participating 37.1 R61 Non-Participating 37.6 R15 Non-Participating 36.5
R92 Non-Participating 37.1 R106 Non-Participating 37.1 R17 Non-Participating 36.5
R15 Non-Participating 36.9 R15 Non-Participating 36.9 R90 Non-Participating 36.5
R17 Non-Participating 36.9 R17 Non-Participating 36.9 R89 Non-Participating 36.4
R61 Non-Participating 36.6 R53 Non-Participating 36.9 R52 Non-Participating 36
R53 Non-Participating 36.2 R91 Non-Participating 36.3
R98 Non-Participating 36
Total Participating 20 Total Participating 20 Total Participating 20
Total Non-Participating 52 Total Non-Participating 53 Total Non-Participating 51
Total 72 Total 73 Total 71
Figure 18. DSEIS Modeling Results With Significant Nighttime Impact.
29
XIII. The DSEIS Understated the Scope of the Project and Shielded Noise
Impacts from Scrutiny
The fact that the location of all of the turbines have moved between the FEIS and the DSEIS,and not just
Turbines 5,A, B,and C as BOWF claims,greatly expands of the needed scope of the DSEIS investigation,
particularly with respect to noise. The changes in turbine location change the noise off the BOWF site.
When turbines that are moved nearer to each other they have cumulative effects on noise that also
need to be assessed. All the changes need to be analyzed by a complete DSEIS, not just a limited
number of changes.
The DSEIS cannot possibly be considered complete given this new revelation.
Conclusion
The DSEIS failed to identify and assess specific noise effects for significant noise impact(Part IV). This
omission alone should disqualify the DSEIS noise assessment from being accepted as complete. It also
has the effect of shifting the burden of demonstrating no significant noise impact on to the assessment
of the local law and the NYSDEC 6 dBA increase criteria.
Unfortunately,the DSEIS fabricated a local law,which disqualifies the fabricated standard as a test for
significance(Part V). This problem has been known for years, but has not been corrected. It must be
corrected, however, before the DSEIS can proceed.
Consequently,the only remaining criterion of significant impacts is the NYSDEC 6 dBA increase criterion.
The DSEIS analysis with respect to the NYSDEC 6 dBA increase criterion is also flawed. It is flawed
because it failed to assess the impact at property lines. Had a property line analyses been undertaken,
significant impact would have been shown at many locations. In addition,the DSEIS fabricated a
spatially and temporally averaged background level that hid significant noise impacts at residences,
understating nighttime noise impacts by 10-15 dBA(Part VI).
In spite of these problems,the DSEIS data and DSEIS criterion of significant impact still show significant
noise impacts at five non-participating residences. The DSEIS ignored its own data and criterion of
significant impact(Part X). Had the DSEIS taken a hard look at its own data it would have recognized this
and found a significant noise impacts. The DSEIS cannot distance itself from the NYSDEC 6 dBA increase
criterion of significant impact because this is the only remaining test of significance in the DSEIS—the
DSEIS failed to analyze noise effects and botched the noise regulation assessment. By ignoring the
NYSDEC 6 dBA test for significant impacts as the DSEIS has done,the DSEIS is left without any test for
significant noise impacts. If there is no remaining test for significant impact,the entire noise analysis is
little more than hand waving.
The refusal to provide the monitoring and modeling data as requested (Parts VII and Vill) is all of a piece
with the discrepancies about the actual site plan and turbine locations and other failings of the DSEIS
noise assessment. The DSEIS is replete with undocumented and unverifiable claims that renderthe
DSEIS conclusions unreliable. The DSEIS also has a number of omissions,that when corrected,show
significant noise impacts(Parts XI an XII).
30
The DSEIS noise analysis must be rejected as incomplete. The local noise law must be fixed by the Town.
Then an analysis of noise effects, an analysis with respect to the new local law,and robust analysis with
respect to the NYSDEC 6 dBA increase criterion, including night time and property line impacts,should
be conducted. The modeling and monitoring data supporting the DSEIS should be provided to all parties
so that the accuracy can be assessed, and the discrepancies concerning wind turbine locations and the
scope of the DSEIS resolved.
Since the DSEIS already clearly shows a significant noise impact, mitigation measures to avoid the
impacts should be developed so as to minimize and avoid the impacts.
After the DSEIS is truly complete,the revised DSEIS should be submitted for public comment,and the
process of the public actually being able to identify and understand the environmental and noise
impacts of BOWF may begin..
Note: The methods and data used in this report are not secret or proprietary. We would hope that the
Town Board/BOWF would share with us the modeling and monitoring data we requested,and provide
us additional time to analyze the data and comment on the DSEIS.We would be happy exchange data
with the Board/BOWF as well as address further questions the Board might have.
31
Ambient Sound Levels Near BOWF
1:5 Y.'E*Fe d Certte.Rd
3T'lauyF Ad m:rownonnaPI
Ca:Te 3:1 d5A Da,- w 35 9 c5A
t,;one 2'1 cGA '.6 c Te :5Z cfiA
• 1
,3-t.=—5 ac'O:.
t om- 2.5 Cor ectcu:H
Da,tine 319CM
O
Z _ _
F
5_ewrc oc
Ca Te 3C:c5- ` -
N -n Te ►A
a
April 22,2016
Prepared by Les Blomberg, Noise Pollution Clearinghouse, PO Box 1137, Montpelier VT 05601
I. Introduction
On April 171h and 18", 2016, ambient sound measurements were made in the vicinity of the proposed
Black Oak Wind Farm (BOWF). Three of the five sites were chosen for their proximity to the newly
proposed Turbines A, B, and C. The other sites are on property lines near Turbines 5 and 6, which have
new locations since the FEIS was accepted. In addition,the character of the soundscape was observed.
II.Ambient Sound levels Near BOWF
Short term daytime and nighttime ambient sound measurements were made at five locations on April
171h and 181h, 2016. The test used the same 20 minute time frame used by HMMH and reported in the
DEIS Appendix T. Measurements were made with a 3M Sound Pro sound level meter,serial number
BLM060007. This meter meets ANSI Type 1 specifications. The sound level meter calibration was
checked before, during, and after the measurements, using a Quest QC-10 Calibrator.The accuracy of
both the sound level meter and the calibrator were checked by the manufacturer in April of 2016. A
wind screen was used during measurements.
The measurements used the "A-weighted"frequency weighting, and the fast time response. The 20
minute Leq was recorded, as well as the maximum value, the L1, L10, L50, L90 and minimum values.
The measurement locations include:
• 637/641 Black Oak Rd.
• 115 Enfield Center Rd.
• 215 Connecticut Hill Rd.
• 185 Leonard Rd.
® 377 Harvey Hill Rd.
Figure 1 shows the locations of the noise measurements. The locations and noise Leq ambient levels are
shown superimposed on Figure 5 of the DSEIS.
2
115 W. Enfield Center Rd.
377 Harvey Hill Rd. (not shown on map)
Daytime:34.1 dBA Daytime:35.9 dBA
Nighttime: 27.1 dBA Nighttime:25.2 dBA
637/641 Black Oak
Daytime:34.0 dBA .... >
Nighttime: 37.3 dBA -•- '
I
•- 215 Connecticut Hill
Daytime:31.9 dBA
Nighttime: 27.2 dBA
i
185 Leonard Rd '
+ - l Daytime:30.1 dBA
-- —
Nighttime: NA
Sr I r{AC K, .,. .
• `,`.•:,.' ..:..:`•'.,,.::, SETBACK DISTANCES
Figure 1:Approximate Measurement Locations
3
Figure 2 shows the measurement results.
Daytime
Location Date and Time Leq Lmax L1 L10 L50 L90 Lmin
637/641 Black Oak Rd. 4/17/1616:00 34.0 54.6 45.7 35.4 28.5 24.2 21.4
115 W. Enfield Center Rd. 4/18/1611:45 35.9 58.0 47.4 38.4 29.3 25.0 21.5
215 Connecticut Hill Rd. 4/18/1611:00 31.9 58.1 43.7 33.1 27.4 23.3 19.4
185 Leonard Rd. 4/18/16 9:55 30.1 41.3 35.4 32.6 29.3 24.3 21.7
377 Harvey Hill Rd. 4/17/1617:10 34.1 53.3 42.0 36.9 31.4 29.1 27.2
Nighttime
637/641 Black Oak Rd. 4/17/16 22:45 37.3 43.5 39.6 38.4 37.1 35.7 NA
115 W. Enfield Center Rd. 4/17/1623:45 25.2 46.2 37.1 26.9 20.7 18.8 15.6
215 Connecticut Hill Rd. 4/17/16 21:15 27.2 48.1 36.5 27.5 25.2 23.6 21.6
185 Leonard Rd. NA
377 Harvey Hill Rd. 4/17/1622:10 27.1 49.4 33.4 29.6 25.5 19.9 14.2
Figure 2.Ambient Sound Levels
The Leq is the "level equivalent" or average level for the period. The Lmax is the maximum value
recorded. The L1 is the level exceeded 1% of the time. The L10 is the level exceeded 10%of the time.
The L50 is the level exceeded 50% of the time; it is the median value. The L90 is the level exceed 90% of
the time. The Lmin is the minimum value recorded. The L90 is often used as the background level
because it excludes transient noises. It is more representative of the ambient because it excludes short
term events such as a bird chirping nearby, which are more dependent on the nearness of the bird to
the meter than the actual ambient in the area.
III. Character of the Area and Soundscape
The measured ambient sound levels were representative of a rural soundscape remote from large roads.
The dominant ambient sounds were natural sounds such as wind in the trees, birds, and frogs.
Intermittent sounds included vehicles on roads,jets overhead, and barking dogs. For the most part,
however,the ambient level depended on how close the microphone was to a natural noise source. For
example,the 58.0 dBA Lmax at the 115 Enfield Center location was due to a bird in a nearby tree. The
elevated nighttime levels at the Black Oak location were due to frogs nearby. The one-third octave
measures from the Black Oak location clearly show very large spikes in the 2.5 KHz and 3.15 KHz ranges.
The measurements are similar to the 20 minute measurements taken by HMMH for the DEIS. With the
exception of the frogs at the Black Oak Rd. location, the nighttime measurements are very similar,
between 25 and 30 dBA Leq. The daytime measurement range was about 5 dBA higher in the HMMH
study. (It should be noted that the HMMH study subtracted the contribution of the frogs from the data,
but the NPC study did not.)
4
Table 1—Noise Monitoring Results at Short-term Measurement Sites
She Ild�e Slam Tine Ot�alion L�aeot Lwit A
-Ile>,r) w ) EdE"
Nighttime
ST 1 655 Black Oak Rd. 3:10 20 29.9 21.3 1 26.3
Sl T2 283 Comectcut Hill Rd. 3.40 20 44.3 22.7 3D.D
ST 3 122 Giffin Rd_ 4:40 20 1 33.4 27.5 29.1
ST-4 Black Oak Rd.at CaWtaville Rd. 5.10 36.5 23.6 26.1
Daytime
ST-1 655 Black Oak Rd_ 12:00 1 20 1 50.7 1 M.8 36.5
ST 2 283 Connecticut Hill Rd. 12:40 20 63.1) 29.0 40.6
ST 3 122 Giffin Rd_ 13720 20 52.7 36.7 1 37A
ST-4 Black Oak Rd.at Cayutawlle Rd. 14:DD 20 60.9 342 1 39A
Figure 3.Short Term Ambient Measurements from the DSEIS Appendix T.
IV. Implications for the DSEIS
The ambient sound level data has a number of implications for the DSEIS. These include:
• Natural sounds dominate the existing soundscape. This has important implications for the
DSEIS assessment of the character of the area and the impact of turbine noise on the
character of the area and soundscape.
• This data provides the only ambient sound levels submitted for the DSEIS concerning the
ambient sound levels near property lines affected by the new or moved turbines.
• This data provides the only ambient sound level submitted for the DSEIS concerning the
ambient sound levels near the newly proposed Turbines A, B,and C.
• The ambient sound levels do not support the use of 39.8 dBA as the ambient noise level
from which to judge increases in noise over ambient in the DSEIS.
• The wind turbines increase the noise at the 4 locations for which modeling data is available
by more than 6 dBA.
The increase in noise at the measurement locations due to the wind turbines is shown in Figure 4. In
Figure 4,the ambient sound levels are subtracted from projected noise levels shown on Figures 1,2,and
3 of Appendix H of the DSEIS. The increase at the specific locations ranges from approximately 15 to 28
dBA.
5
Daytime
DSEIS Increase
Modeled Above
Location Date and Time Leq Level Ambient
637/641 Black Oak Rd. 4/17/16 16:00 34.0 52 18.0
115 W. Enfield Center Rd. 4/18/1611:45 35.9 NA
215 Connecticut Hi I I Rd. 4/18/1611:00 31.9 55 23.1
185 Leonard Rd. 4/18/16 9:55 30.1 45 14.9
377 Harvey Hill Rd. 4/17/1617:10 34.1 53 18.9
Nighttime
637/641 Black Oak Rd. 4/17/16 22:45 37.3 52 14.7
115 W. Enfield Center Rd. 4/17/16 23:45 25.2 NA
215 Connecticut Hill Rd. 4/17/16 21:15 27.2 55 27.8
185 Leonard Rd. NA 45
377 Harvey Hill Rd. 4/17/16 22:10 27.1 53 25.9
Figure 4. Increase Above Ambient Due to BOWF
Conclusion
The ambient sound levels measured by the Noise Pollution Clearinghouse are similar to those measured
by HMMH, particularly in the nighttime. They are consistent with a quiet rural soundscape remote from
large roads.
Note: The methods and data used in this report are not secret or proprietary. We would hope that the
Town Board/BOWF would share with us the modeling and monitoring data we requested, and provide
us additional time to analyze the data and comment on the DSEIS. We would be happy exchange data
with the Town Board/BOWF as well as address further questions the Town Board might have.
6
LES BLOMBERG
Box 1137, Montpelier, Vermont 05601
802-229-1659
PROFESSIONAL EXPERIENCE
EXECUTIVE DIRECTOR
Noise Pollution Clearinghouse, Montpelier, VT, 1996-present
• Founded a national non-profit clearinghouse dealing with noise pollution and hearing loss
issues.
• Created and maintained an extensive noise pollution library.
• Conducted research into noise and its effects.
• Wrote articles and fact sheets for magazines,journals, and web sites.
• Advised consultants, communities, and individuals about noise pollution issues.
MEMBERSHIPS AND AFFILIATIONS
Member, American National Standards Accredited Standards Committee S 12,Noise.
• Evaluated, revised, and approved national standards for noise measurement as a voting
member of the S 12 committee and as members of specific working groups
• Member,ANSI S 12 Working Group 15, Measurement and Evaluation of Outdoor Community
Noise
• Member ANSI S12 Working Group 38,Noise Labeling In Products
• Member ANSI S 12 Working Group 41, Model Community Noise Ordinances
• Member ANSI S12 Working Group 50,Information Technology(IT)Equipment in
Classrooms
Past Memberships
• Former Member, Acoustical Society of America(ASA)
• Former Member, Acoustical Society of America Technical Committee on Noise
Former Member,National Hearing Conservation Association (NHCA)
• Former Member, Institute of Noise Control Engineering(INCE)
PAPERS AND PUBLICATIONS (partial list)
• "Update on Regulations Adding Noise to Electric and Hybrid Vehicles," invited paper,
Acoustical Society of America, 2014.
• "Noise in the 21 st Century,"Acoustical Society of America Lay Language Paper,201.4.
• "Noise in the 21 st Century," invited paper, Acoustical Society of America, 2014.
• "Regulatory Inertia and Community Noise," invited paper, Acoustical Society of America,2014.
• "Natural Quiet: Where to Find It, How to Increase It," invited paper,Noise in Communities
and Natural Areas Workshop, Institute of Noise Control Engineering, 2013.
• "Optimizing Detection of Masked Vehicles," invited paper,Acoustical Society of America,
2013.
• "Validity of a Temporary Threshold Shift(TTS)Detector for Use in iPods and Other Portable
Audio Devices,"National Hearing Conservation Association, 2010.
• "Five Ways to Quiet Your Neighborhood," published in One Square Inch of Silence, 2009.
• "Noise Masking of Vehicles, A Comparison of Gasoline/Electric Hybrids and Conventional
Vehicles,"Noise Pollution Clearinghouse,2008.
• "Wind,Noise, and Energy,"Noise Pollution Clearinghouse for American Wind Energy
Association,2008.
• "What's the Ear For?" Chapter 47 of Handbook for Sound Engineers, 2008.
• "Hearing Damage Related to In-Ear Music Devices and other Consumer Products,
"International Consumer Product Health and Safety Organization Symposium, 2007.
• "10 Ways to Quiet Our National Parks,"Acoustical Society of America, 2007.
• "Criteria Levels for Non-Occupational Noise Exposure,"Acoustical Society of America, 2006.
• "Consumers, Products,.and.Noise: The Economic, Social, and Political Barriers to Reducing
Noise in Consumer Products Sold in North America,"Acoustical Society of America, 2006.
• "Opportunities and Progress in Consumer Product Noise Testing and Labeling," Institute of
Noise Control Engineering, 2006.
• "Noise (is) Pollution," Quiet Zone,2006.
• "The Nature of Noise," Quiet Zone, 2006.
"The State of State Noise Regulations in New England,"Institute of Noise Control
Engineering, 2005.
• "Consumer Oriented Measurement of Product Noise," Institute of Noise Control Engineering,
2005.
"Acoustical Advocacy,"National Hearing Conservation Association, 2005.
• "Barriers to Community Input to Noise Policy Decisions,"Institute of Noise Control.
Engineering, 2004.
• "The Nature of Noise in Society,"Acoustical Society of America, 2004.
• "24 Hours of Noise in a Large City;Problems and Solutions.,"Acoustical Society of America,
2004.
® "Why Diesel Trucks Are Quieter than Boats,"Lakeline, 2004.
• "The Future of Peace and Quiet," Quiet Zone, 2003.
• "The Interest of the Public in Noise Control,"Institute of Noise Control Engineering, 2002.
® "A Punch from Michael Tyson Averaged over an Hour is a Very Long Love Pat: The Problems
of Averaging in Noise Measurement,"MIT Seminar, 2001.
• "Noise Ordinances: the Good,the Bad, and the Ugly; An overview of more than 200 existing
noise ordinances,"Acoustical Society of America, 2001.
"Soundscapes, Quiet Zoning, and a Noise Sabbath,"Wisconsin Lakes Partnerships
Conference, 2001.
• "Amphitheater Noise,A Community Perspective,"Acoustical Society of America,2000.
• "Educating the Public about the Effects of Noise Pollution,"Acoustical Society of America,
2000.
• "Noise in the News: What the Media Is and Is Not Covering,"Acoustical Society of America,
2000.
• "Sound Decisions,"New Rules, 1999.
0 "Noise, Civility, and.Sovereignty,"Noise Pollution Clearinghouse, 1999..
PATENTS
• Number 7,780,609, Temporary Threshold Shift Detector, Issued August 24, 2010, allows users
of personal listening devices to determine if they have listened at levels that could damage
their hearing.
CLIENTS AND CONSULTING
Assisted hundreds of communities, mayors, council members, zoning boards; and police chiefs to
understand, interpret, rewrite, and enforce their noise regulations.
• Drafted modifications to noise ordinances.
• Drafted new or complete overhauls of noise regulations.
• Advised communities on appropriate monitoring equipment.
Assisted Vermont towns with understanding, enforcing, and revising noise regulations.
• St. Albans
• Montpelier
• Waitsfeld
Developed noise measurement procedures, evaluated testing facilities, and tested consumer
product noise levels.
• Consumer Reports
• Quiet Zone(Noise Pollution Clearinghouse publication)
Modeled noise levels from various noise sources.
• Transportation
• Resource extraction
Created online libraries of important noise-related documents and answered questions about noise
from the general public.
• US EPA
• Noise Pollution Clearinghouse
Partial List of clients:
• US EPA
• Consumer Reports
• American Wind Energy Association
• East Hampton,NY Airport
• Boston, MA
• Sierra Club
• Natural.Resources Defense Council
Partial list of proceedings in Vermont in which participated or testified:
• 2014,Vermont State Environmental Court, Docket No. 99-7-13 Vtec
• 2014, Vermont State Environmental Court, Docket No. 182-12-13 Vtec
• 2013, District 3 Environmental Commission,Act 250, Application #3W1049
• 2013, Vermont State Environmental Court, Docket No. 159-10-11 Vtec
0 2012, District 7 Environmental Commission,Application#7C1321
® 2012, Vennont Environmental Court, Docket Nos. 122-7-04, 210-9-08 and 136-8-10 Vtec
• 2011, Vermont Public Service Board Docket#7628
® 2010,Vermont Public Service Board Docket#7156
• 2009, Greensboro, Vermont Zoning Permit,Lakeview Inn
® 2008, Vermont Environmental Court,..O'Neil Sand &.Gravel, LLC Docket No.. 48-2-07 Vtec,
Act 250 Application #2S0214-6A
® 2008, Bristol Vermont Zoning Permit, Lathrop Gravel Pit
• 2007, Vermont Environmental Court, Wright Quarry Docket Nos. 1.56=7-06 Vtec and 190-8-06
Vtec
® 2007,East Calais, Vermont Zoning.Permit, Gravel Pit
• 2007, District 5 Environmental Commission,Route 100 Bypass
• 2006, District 5 Environmental Commission, Application#5W1455
• 2005, State Environmental Court, Docket No. 203-11-03 Vtec
® 2005,. District 3 Environmental Commission, Act 250 Application.43WO929
® 2004,Norwich,.Vermont Zoning.Permit, Verizon Wireless Tower
• 2004,Moretown, Vermont Zoning Permit, Quarry
• 2003,District 5 EnvironmentalCommission, Barre Town Police Firing Range
+ 2001, District Number 5 Environmental Commission, Bull's Eye Sporting Center and Case
Number 5WO743-3
• 2001,Dummerston, Vermont Zoning Permit, Quarry
• 1999, Vermont State Environmental Board, OMYA, Inc. and Foster Brothers Farm, Inc., Land
Use Permit#9A0107-2-EB.
6 1999, Vermont State Environmental Board,.Barre Granite Quarries, LLC, Application
#7C 1079-EB
EDUCATION
SEMINAR CADNA A EXPERT (Noise Mode
SEMINAR CADNA A ADVANCED
SEMINAR CADNA A BASIC
Datakustic, 2013
INTEGRATED NOISE MODEL TRAINING COURSE (FAA Noise Model
Harris,Miller, Miller,and Hanson, 2010
COMMUNITY NOISE ENFORCEMENT CERTIFICATION COURSE
Rutgers Noise Technical Assistance Center, 1997
MASTER OF ARTS in Environmental Philosophy, 1993
Colorado State University, Fort Collins, Colorado
BACHELOR OF SCIENCE in Applied Mathematics, minor in Physics, 1989
BACHELOR OF ARTS in Philosophy, with honors, 1989
University of Minnesota, Duluth,Minnesota