Cape Breton Hydro Inc. Noise Assessment Report East Bay ......Cape Breton Hydro Inc. (the “Client”), a subsidiary of BluEarth Renewables Inc., is proposing to develop an approximately

Disclaimer

Hatch will not be responsible for any claim, damage, financial or other loss of any kind whatsoever, direct or indirect, as

a result of or arising from conclusions obtained or derived from the information contained or referred to in this document.

No information, whether oral or written, obtained by you from Hatch Inc. shall create any warranty not expressly stated

herein.

Cape Breton Hydro Inc.

Noise Assessment Report

East Bay Hills Wind Project

H339307-0000-00-124-0005

Rev. 5

May 14, 2014

Cape Breton Hydro Inc. - East Bay Hills Wind Project


H339307-0000-00-124-0005, Rev. 5 Page ii

© Hatch 2014/05

Project Report May 14, 2014

Cape Breton Hydro Inc.

East Bay Hills Wind Project DISTRIBUTION

Tom Bird – Cape Breton Hydro Inc.


Table of Contents

Executive Summary ....................................................................................................................................... iv

1. Introduction ......................................................................................................................................... 1-1

2. Site description and layout ................................................................................................................... 2-1

3. Approach to the Study ......................................................................................................................... 3-1

4. Noise Sources ....................................................................................................................................... 4-2

4.1 Wind Turbine Generators............................................................................................................ 4-2

4.2 Transformer Substation ................................................................................................................ 4-2

4.3 Noise Sources and Locations ....................................................................................................... 4-3

5. Point of Receptors ................................................................................................................................ 5-4

6. Noise Impact Assessment ..................................................................................................................... 6-5

6.1 Compliance With Performance Limits ......................................................................................... 6-5

6.2 Impact of Adjacent Planned and Approved Wind Farms ............................................................ 6-12

7. Conclusion ......................................................................................................................................... 7-12

8. References .......................................................................................................................................... 8-13



H339307-0000-00-124-0005, Rev. 5 Page iii

© Hatch 2014/05

List of Tables

Table 4.1 Turbine Description ..................................................................................................................... 4-2

Table 4.2 Wind Turbine Acoustic Emissions Summary ................................................................................ 4-2

Table 4.3 Noise Sources Identification and UTM Coordinates .................................................................... 4-3

Table 5.1 Point of Reception Noise Impact from Individual Noise Sources of East Bay Hills Wind Project .. 5-4

Table 6.1 Calculated Sound Pressure Levels at POR East Bay Hills Wind Project ......................................... 6-6

List of Appendices

Appendix A - Project Layout Map

Appendix B - Wind Turbine Technical Literature

Appendix C - Substation Transformer

Appendix D - Noise Map from CADNA-A

Appendix E - Noise Impact Sample Calculation



H339307-0000-00-124-0005, Rev. 5 Page iv

© Hatch 2014/05

Executive Summary

This report presents the results of the Noise Assessment Study of East Bay Hills Wind Project. Cape

Breton Hydro Inc. (the “Client”), a subsidiary of BluEarth Renewables Inc., is proposing to develop

an approximately 50-megawatt (MW) wind project titled East Bay Hills Wind Project (the “Project”).

The Project is situated on the Cape Breton island in the province of Nova Scotia, Canada.

The sound pressure levels at the points of reception (POR) have been estimated using ISO 9613-2,

implemented in the CADNA-A computer code. The province of Nova Scotia does not provide any

guidelines for assessing the acoustical impact of wind turbine on residential properties. Thus, the

performance limit used for verification of compliance corresponds to a standard value for rural areas

of 40 dBA as required by the Ontario Ministry of the Environment (MOE).

The results presented in this report are based on the wind turbine and transformer technical

specifications included in Appendix B. Should any of these specifications change during the final

design of the project, another noise assessment may need to be conducted to ensure the sound

pressure levels at POR remain below 40 dBA threshold.

Information on existing receptors was gathered by the client and forwarded to Hatch. Wind turbine

layout was provided by the Client and Hatch assumed to be compliant with the environmental

restriction setbacks.

The results obtained in this study show that the sound pressure levels at POR will not exceed the

limit of 40 dBA.



H339307-0000-00-124-0005, Rev. 5 Page 4-1

© Hatch 2014/05

1. Introduction

In order to evaluate the potential environmental impact caused by noise at the East bay Hills site for

wind power development, a noise assessment was completed. The site is located in the Cape Breton

Regional Municipality on Cape Breton Island in the province of Nova Scotia, Canada.

The wind turbines layout and the substation location were provided by the Client. Hatch assumed

that the layout is compliant with the environmental restriction setbacks as required by the Ministry of

the Environment of Nova Scotia.

The noise assessment is based on the layout provided by the Client on February 26, 2014. The

guaranteed sound power level from the wind turbine is 106 dBA (worst case).

2. Site description and layout

The Project is located east of Bras d’Or Lake on Cape Breton Island. It is approximately 45 km

southwest of Sydney, Nova Scotia. The site consists mainly of forested rolling hills with an average

elevation of 175 m.

The layout was provided by the Client and consists of 31 GE1.68 MW at a 80-m hub height. The

project layout map, in Appendix A, shows the geographic location of the project, the wind turbines

layout, the substation location and all receptors within 3-km buffer from noise source.

3. Approach to the Study

The sound pressure levels at the POR were predicted using procedures from ISO 9613-2, which is a

widely used and generally accepted standard for the evaluation of noise impact in environmental

assessments. The sound power level for the substation transformer was estimated. The software

package CADNA-A, which implements ISO-9613-2, was used to predict the noise levels at the POR.

This numerical modeling software is able to simulate sound sources as well as sound mitigation

measures taking into account atmospheric and ground attenuation. The height contours for the site

were taken from the National Topographic Data Base (NTDB).

The noise assessment was based on the most current and comprehensive maps available to Hatch at

the moment. We recommend to do an on-site survey of all the properties within 3-km from the

nearest turbine and confirm with local authorities if all current or future developments have been

included.

For modeling purposes, the vegetation that blocks some of the POR from the sources has not been

incorporated.



H339307-0000-00-124-0005, Rev. 5 Page 4-2

© Hatch 2014/05

4. Noise Sources

4.1 Wind Turbine Generators The noise produced by a wind turbine include mechanical and aerodynamic components.

Mechanical sounds originate from the relative motion of mechanical components such as the

gearbox, generator, yaw drives, cooling fans and other mechanical components. Aerodynamic

sound originates from the flow of air around the blades. It is also affected by the interaction of the

rotating blade and localized flow around the tower, wind speed changes, or wakes shed from other

blades.

The sound energy of a wind turbine will be spread over a wide band of frequencies. Sometimes a

noise source will emit sound that is concentrated at discrete frequencies of the spectrum and will

contain a high proportion of energy at a single frequency. This is referred to as tonal noise and will

be more perceptible to the human ear than broadband noise. These tonal sounds can cause more

annoyance at the same sound energy level than broadband noise. According to recommendations

from Ontario’s Ministry of the Environment, the wind turbine noise perceived at receptors is typically

broadband in nature. No tonal penalty was thus applied to the overall sound level of the GE turbines.

Refer to Appendix B for technical literature on this machine.

Table 4.1 Turbine Description

Item Value

Turbine Manufacturer GE Energy

Turbine Model GE1.68 - 82.5

Diameter (m) 82.5

Hub Height (m) 80

Number of Blades 3

Table 4.2 Wind Turbine Acoustic Emissions Summary

Octave band (Hz) Sound Power Level (dB(A))*

63 84.8

125 93.6

250 99.2

500 100.8

1000 100.1

2000 97.3

4000 89.1

8000 86.2

Total 106

* Typically corresponding to wind speeds larger than 10 m/s at 10 m height.

4.2 Transformer Substation A 53.3-MVA step-up transformer will step up the voltage as required by the local distribution

company and will be located in the substation. Since the transformer make and model has not been

selected at this point (although it is known that the transformer will be of ONAF (oil natural air forced



H339307-0000-00-124-0005, Rev. 5 Page 4-3

© Hatch 2014/05

type), a conservative estimate of sound power level was based on the data from NEMA TRI – 1993

(2000) and 63.0-m2 transformer surface area. This standard provides maximum sound level values

for transformers, and manufacturers routinely meet this specification. Hence, the results based on

NEMA may slightly overestimate the impact on POR since the actual transformer is expected to be

quieter. The NEMA levels were then converted into frequency spectra using empirical correlations

for transformer noise (Crocker, 2007). This calculation with the transformer dimensions’ figures are

shown in Appendix C. A 5-dB penalty for tonality was added to the sound power spectrum, as

recommended by MOE Publication NPC-104. Noise source height representing the transformer was

assumed at 3.5 m above ground.

4.3 Noise Sources and Locations Wind turbine identification and their coordinates are given in Table 4.3. Coordinates are in

Universal Transverse Mercator (UTM) NAD83, Zone 20.

Table 4.3 Noise Sources Identification and UTM Coordinates

Source ID Equipment Make

and Model

UTM Coordinates Elevation

(m)

Height

(m) X (m) Y (m)

1 GE1.68 - 82.5 683260.0 5076418.0 241.0 80.0

2 GE1.68 - 82.5 682719.0 5076369.0 241.0 80.0

3 GE1.68 - 82.5 682977.0 5077115.0 238.8 80.0

4 GE1.68 - 82.5 683591.0 5076964.0 251.0 80.0

5 GE1.68 - 82.5 684250.0 5076443.0 257.0 80.0

6 GE1.68 - 82.5 684484.0 5077083.0 251.1 80.0

7 GE1.68 - 82.5 685309.0 5076491.0 251.0 80.0

8 GE1.68 - 82.5 685976.0 5076629.0 236.0 80.0

9 GE1.68 - 82.5 685879.0 5077059.0 242.6 80.0

10 GE1.68 - 82.5 685172.0 5077421.0 256.9 80.0

11 GE1.68 - 82.5 685848.0 5078061.0 257.0 80.0

12 GE1.68 - 82.5 685243.0 5078040.0 258.6 80.0

13 GE1.68 - 82.5 684960.0 5077924.0 256.9 80.0

14 GE1.68 - 82.5 685553.0 5078599.0 257.0 80.0

15 GE1.68 - 82.5 686462.0 5078308.0 259.6 80.0

16 GE1.68 - 82.5 686967.0 5078097.0 251.0 80.0

17 GE1.68 - 82.5 686344.0 5078833.0 258.3 80.0

18 GE1.68 - 82.5 686691.0 5080005.0 266.0 80.0

19 GE1.68 - 82.5 686285.0 5079683.0 259.6 80.0

20 GE1.68 - 82.5 685727.0 5079329.0 257.4 80.0

21 GE1.68 - 82.5 684849.0 5079340.0 258.2 80.0

22 GE1.68 - 82.5 685236.0 5079767.0 260.8 80.0

23 GE1.68 - 82.5 685783.0 5080120.0 268.1 80.0

24 GE1.68 - 82.5 685910.0 5080791.0 251.0 80.0

25 GE1.68 - 82.5 686648.0 5080866.0 257.6 80.0

26 GE1.68 - 82.5 687464.0 5080524.0 263.1 80.0



H339307-0000-00-124-0005, Rev. 5 Page 5-4

© Hatch 2014/05

Source ID Equipment Make

and Model

UTM Coordinates Elevation

(m)

Height

(m) X (m) Y (m)

27 GE1.68 - 82.5 687660.0 5081743.0 265.0 80.0

28 GE1.68 - 82.5 688286.0 5081934.0 271.0 80.0

29 GE1.68 - 82.5 688437.0 5082470.0 268.8 80.0

30 GE1.68 - 82.5 688936.0 5082813.0 251.0 80.0

31 GE1.68 - 82.5 689311.0 5082474.0 247.3 80.0

Substation 53.3MVA ONAF Transformer 687580.9 5075584.6 97.6 3.5

5. Point of Receptors

The POR locations were provided by the Client on May 14, 2012 within 3-km distance from the

nearest noise source. For the purpose of this assessment, vacant lots (zoned for residential

development) were not considered POR and not included in the study. The total number of POR is

241. Three of these noise receptors, identified in Table 5.1, were chosen as representative receptors

for evaluating the noise contribution from each individual source in Table 4.3. These three receptors

were chosen in order to represent sound pressure level contributions on different areas around the

Project location. The complete set of results for all 241 noise receptors is provided in Table 6.1.

For this study, the elevation above ground used for the POR, assumed a two storey dwelling, is 4.5m.

Table 5.1 Point of Reception Noise Impact from Individual Noise Sources of East Bay Hills Wind

Project

Source ID

POR R101 POR R102 POR R220

Distance

(m)

Leq Sound

Level

(dBA)

Distance

(m)

Leq Sound

Level

(dBA)

Distance

(m)

Leq Sound

Level

(dBA)

1 4771 9.3 4413 10.3 4701 9.5

2 4951 8.8 4607 9.7 5221 0.0

3 4162 11.1 3817 12.2 5168 0.0

4 4176 11.1 3815 12.3 4539 9.9

5 4655 9.6 4286 10.7 3749 12.5

6 4026 11.5 3656 12.8 3767 12.4

7 4742 9.3 4378 10.4 2768 16.3

8 4814 9.1 4465 10.2 2247 18.8

9 4380 10.4 4032 11.5 2584 17.1

10 3807 12.3 3445 13.6 3362 13.9

11 3462 13.5 3132 14.8 3341 13.9

12 3236 14.3 2881 15.8 3720 12.6

13 3267 14.2 2904 15.7 3845 12.1

14 2849 15.9 2519 17.4 3950 11.8

15 3601 13.0 3308 14.1 3236 14.3

16 4092 11.3 3813 12.3 2853 15.9

17 3129 14.8 2856 15.9 3763 12.4

18 2733 21.0 2587 21.6 4765 9.3

19 2532 21.9 2326 23.0 4575 9.8

20 2346 22.8 2066 24.4 4479 10.1

21 1879 25.6 1530 28.0 4964 8.7



H339307-0000-00-124-0005, Rev. 5 Page 6-5

© Hatch 2014/05

Source ID

POR R101 POR R102 POR R220

Distance

(m)

Leq Sound

Level

(dBA)

Distance

(m)

Leq Sound

Level

(dBA)

Distance

(m)

Leq Sound

Level

(dBA)

22 1696 26.8 1408 28.9 5102 0.0

23 1873 25.6 1689 26.8 5167 0.0

24 1752 26.4 1704 26.7 5744 0.0

25 2473 22.2 2444 22.3 5613 0.0

26 3328 18.6 3263 18.8 5156 0.0

27 3534 17.8 3599 17.6 6363 0.0

28 4185 15.6 4253 15.4 6566 0.0

29 4467 14.7 4574 14.4 7112 0.0

30 5051 0.0 5168 0.0 7510 0.0

31 5307 0.0 5394 0.0 7241 0.0

Substation 6475 0.0 6151 0.0 333 35.3

As shown in the table 5.1, the representative receptors are more affected by the nearby noise source

emissions.

6. Noise Impact Assessment

The purpose of the acoustic Assessment report is to demonstrate that the wind farm is in compliance

with the commonly used noise performance limits of 40 dBA. Since there is no specific noise limit

that is required by the government of Nova Scotia, Hatch suggests to use the worst case scenario of

40 dBA as by the MOE noise guidelines for wind farms.

This study assumes that the wind farm and the substation transformer will be operating 24 hours.

Adjustment due to tonal nature of sound was not performed in the current study.

The overall ground attenuation coefficient was estimated to be 0.7. Appendix E includes a list of all

the parameters used in the CADNA-A model to predict the sound pressure levels at the POR.

6.1 Compliance With Performance Limits Table 6.1 presents the predicted sound pressure levels for the POR located within 3-km from the

Project site. Sound pressure contours at 4.5-m is available in Appendix D. Appendix E includes a

detailed calculation log of one of the representative POR (R220).

The performance limit is met for all points of reception. The maximum noise pressure level is 35.9

dBA (receptor R220) which is located at around 330-m from the substation.



H339307-0000-00-124-0005, Rev. 5 Page 6-6

© Hatch 2014/05

Table 6.1 Calculated Sound Pressure Levels at POR East Bay Hills Wind Project

(Shaded rows correspond to representative POR)

Existing = Existing dwelling

PO

R

ID

Desc

rip

tio

n

To

tal

So

un

d

Pre

ssu

re L

evel

(dB

A)

Perf

orm

an

ce

Lim

it (

dB

A)

PO

R

Heig

ht

(m)

Min

Dis

tan

ce

to S

ou

rce (

m)

UTM Coordinates

NAD 83

Ele

vati

on

(m)

X Y

R001 Existing 22.7 40.0 4.5 2935 689414 5085709 10.5

R002 Existing 22.8 40.0 4.5 2915 689395 5085692 10.5

R003 Existing 24.2 40.0 4.5 2888 689355 5085670 10.5

R004 Existing 24.3 40.0 4.5 2863 689323 5085649 10.5

R005 Existing 23.0 40.0 4.5 2857 689381 5085635 10.5

R006 Existing 20.6 40.0 4.5 2913 689686 5085628 16.1

R007 Existing 21.4 40.0 4.5 2894 689616 5085626 15.3

R008 Existing 21.3 40.0 4.5 2742 689534 5085489 15.6

R009 Existing 21.4 40.0 4.5 2697 689575 5085433 16.9

R010 Existing 25.4 40.0 4.5 2584 689178 5085385 10.5

R011 Existing 21.6 40.0 4.5 2649 689596 5085379 17.6

R012 Existing 25.2 40.0 4.5 2533 689094 5085342 10.5

R013 Existing 25.2 40.0 4.5 2519 689076 5085329 10.5

R014 Existing 25.3 40.0 4.5 2505 689055 5085316 10.5

R015 Existing 25.7 40.0 4.5 2477 688934 5085290 10.5

R016 Existing 25.5 40.0 4.5 2464 689019 5085276 10.5

R017 Existing 25.8 40.0 4.5 2433 689023 5085245 10.5

R018 Existing 24.9 40.0 4.5 2443 688973 5085256 10.5

R019 Existing 24.8 40.0 4.5 2462 688978 5085274 10.5

R020 Existing 25.9 40.0 4.5 2423 688794 5085231 10.5

R021 Existing 26.0 40.0 4.5 2410 688701 5085211 10.5

R022 Existing 26.0 40.0 4.5 2401 688745 5085206 10.5

R023 Existing 26.0 40.0 4.5 2396 688824 5085207 10.5

R024 Existing 25.1 40.0 4.5 2388 688956 5085201 10.5

R025 Existing 26.2 40.0 4.5 2368 688836 5085179 10.5

R026 Existing 26.2 40.0 4.5 2360 688900 5085173 10.5

R027 Existing 26.4 40.0 4.5 2324 688853 5085135 10.5

R028 Existing 26.8 40.0 4.5 2234 688838 5085045 13.3

R029 Existing 23.8 40.0 4.5 2448 687748 5084953 10.5

R030 Existing 26.0 40.0 4.5 2201 688887 5085014 14.7

R031 Existing 24.0 40.0 4.5 2185 689170 5084985 22.6

R032 Existing 27.3 40.0 4.5 2124 688721 5084926 15.1

R033 Existing 24.8 40.0 4.5 2103 688486 5084868 14.1

R034 Existing 24.9 40.0 4.5 2081 688456 5084838 15.5

R035 Existing 25.2 40.0 4.5 2007 688524 5084777 20.1

R036 Existing 25.3 40.0 4.5 2007 688335 5084728 15.5

R037 Existing 24.5 40.0 4.5 2300 687848 5084839 10.5



H339307-0000-00-124-0005, Rev. 5 Page 6-7

© Hatch 2014/05

PO

R

ID

Desc

rip

tio

n

To

tal

So

un

d

Pre

ssu

re L

evel

(dB

A)

Perf

orm

an

ce

Lim

it (

dB

A)

PO

R

Heig

ht

(m)

Min

Dis

tan

ce

to S

ou

rce (

m)

UTM Coordinates

NAD 83

Ele

vati

on

(m)

X Y

R038 Existing 20.7 40.0 4.5 2880 689770 5085570 23.9

R039 Existing 22.4 40.0 4.5 2438 689609 5085156 29.5

R040 Existing 24.0 40.0 4.5 2390 687765 5084896 10.5

R041 Existing 23.4 40.0 4.5 2514 687796 5085054 10.5

R042 Existing 24.9 40.0 4.5 2165 688011 5084771 10.5

R043 Existing 23.4 40.0 4.5 2756 689315 5085543 10.5

R044 Existing 28.7 40.0 4.5 1597 681614 5077948 16.7

R045 Existing 28.1 40.0 4.5 1700 681309 5077444 29.7

R046 Existing 29.2 40.0 4.5 1514 681476 5077316 43.9

R047 Existing 30.1 40.0 4.5 1667 681321 5077304 48.6

R048 Existing 28.2 40.0 4.5 1922 680978 5077184 32.8

R049 Existing 29.9 40.0 4.5 1727 681165 5077122 57.9

R050 Existing 27.9 40.0 4.5 1945 680917 5077102 33.6

R051 Existing 29.7 40.0 4.5 1749 681138 5077118 56.9

R052 Existing 26.0 40.0 4.5 1971 680851 5077000 26.9

R053 Existing 25.5 40.0 4.5 2066 680750 5076995 10.5

R054 Existing 26.0 40.0 4.5 1962 680847 5076958 28.1

R055 Existing 25.4 40.0 4.5 2078 680725 5076953 10.5

R056 Existing 27.2 40.0 4.5 1781 681031 5076936 51.4

R057 Existing 26.1 40.0 4.5 1936 680862 5076916 31.9

R058 Existing 29.4 40.0 4.5 1686 681143 5076970 62.7

R059 Existing 25.5 40.0 4.5 2033 680751 5076876 16.5

R060 Existing 25.1 40.0 4.5 2123 680655 5076865 10.5

R061 Existing 25.4 40.0 4.5 2047 680730 5076854 16.2

R062 Existing 25.3 40.0 4.5 2074 680702 5076852 13.7

R063 Existing 25.4 40.0 4.5 2037 680731 5076812 20.5

R064 Existing 26.4 40.0 4.5 1872 680896 5076797 36.0

R065 Existing 27.1 40.0 4.5 1763 681011 5076808 48.6

R066 Existing 30.3 40.0 4.5 1606 681530 5077812 20.3

R067 Existing 33.0 40.0 4.5 1646 683631 5080447 84.5

R068 Existing 29.9 40.0 4.5 2062 683013 5080278 62.4

R069 Existing 32.2 40.0 4.5 1523 683630 5080254 64.6

R070 Existing 32.8 40.0 4.5 1407 683747 5080214 77.6

R071 Existing 28.9 40.0 4.5 2041 682933 5080042 43.6

R072 Existing 28.8 40.0 4.5 2079 682885 5080022 41.9

R073 Existing 29.5 40.0 4.5 1758 683196 5079940 60.7

R074 Existing 28.7 40.0 4.5 2105 682837 5079960 43.2

R075 Existing 30.6 40.0 4.5 2081 685435 5082817 10.5

R076 Existing 30.9 40.0 4.5 2009 685473 5082752 10.5

R077 Existing 30.7 40.0 4.5 2035 685357 5082749 10.5



H339307-0000-00-124-0005, Rev. 5 Page 6-8

© Hatch 2014/05

PO

R

ID

Desc

rip

tio

n

To

tal

So

un

d

Pre

ssu

re L

evel

(dB

A)

Perf

orm

an

ce

Lim

it (

dB

A)

PO

R

Heig

ht

(m)

Min

Dis

tan

ce

to S

ou

rce (

m)

UTM Coordinates

NAD 83

Ele

vati

on

(m)

X Y

R078 Existing 31.2 40.0 4.5 1901 685184 5082548 10.5

R079 Existing 31.2 40.0 4.5 1907 685008 5082471 10.5

R080 Existing 31.5 40.0 4.5 1890 684968 5082430 10.5

R081 Existing 29.2 40.0 4.5 1702 685390 5082412 10.5

R082 Existing 31.4 40.0 4.5 1886 684886 5082374 10.5

R083 Existing 31.3 40.0 4.5 1872 684852 5082335 10.5

R084 Existing 29.9 40.0 4.5 1627 685324 5082309 13.4

R085 Existing 31.7 40.0 4.5 1797 684839 5082234 11.5

R086 Existing 31.2 40.0 4.5 1829 684769 5082220 10.5

R087 Existing 31.1 40.0 4.5 1809 684757 5082185 11.7

R088 Existing 28.8 40.0 4.5 1861 684600 5082112 12.0

R089 Existing 31.6 40.0 4.5 1743 684761 5082102 22.5

R090 Existing 31.0 40.0 4.5 1793 684673 5082088 23.0

R091 Existing 32.9 40.0 4.5 1444 685251 5082076 26.4

R092 Existing 32.5 40.0 4.5 1644 684836 5082035 33.7

R093 Existing 31.3 40.0 4.5 1741 684694 5082037 33.9

R094 Existing 31.9 40.0 4.5 1709 684727 5082024 35.6

R095 Existing 31.5 40.0 4.5 1714 684705 5082010 38.2

R096 Existing 31.5 40.0 4.5 1722 684673 5081989 41.3

R097 Existing 31.4 40.0 4.5 1751 684622 5081977 41.1

R098 Existing 33.6 40.0 4.5 1667 684524 5081717 70.5

R099 Existing 33.6 40.0 4.5 1686 684462 5081656 78.4

R100 Existing 34.3 40.0 4.5 1721 684200 5081141 96.4

R101 Existing 34.4 40.0 4.5 1696 684186 5081098 97.5

R102 Existing 35.7 40.0 4.5 1408 684207 5080728 111.6

R103 Existing 31.4 40.0 4.5 1853 684836 5082301 10.5

R104 Existing 25.4 40.0 4.5 2182 689733 5075946 57.5

R105 Existing 25.8 40.0 4.5 2153 689710 5075908 57.5

R106 Existing 25.1 40.0 4.5 2183 689747 5075855 58.4

R107 Existing 24.6 40.0 4.5 2352 689916 5075864 69.2

R108 Existing 25.8 40.0 4.5 2102 689669 5075822 57.5

R109 Existing 25.5 40.0 4.5 2113 689685 5075786 57.5

R110 Existing 24.8 40.0 4.5 2253 689826 5075775 63.6

R111 Existing 24.7 40.0 4.5 2236 689816 5075664 60.4

R112 Existing 24.2 40.0 4.5 2274 689854 5075640 60.6

R113 Existing 24.1 40.0 4.5 2280 689861 5075574 57.5

R114 Existing 21.3 40.0 4.5 2690 690271 5075548 60.5

R115 Existing 23.7 40.0 4.5 2346 689922 5075442 57.5

R116 Existing 23.7 40.0 4.5 2350 689924 5075405 57.5

R117 Existing 23.2 40.0 4.5 2349 689914 5075315 57.5



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R118 Existing 23.7 40.0 4.5 2344 689915 5075373 57.5

R119 Existing 24.7 40.0 4.5 2371 688501 5085144 10.5

R120 Existing 27.3 40.0 4.5 2341 691626 5082127 145.5

R121 Existing 27.2 40.0 4.5 2361 691645 5082115 145.5

R122 Existing 25.7 40.0 4.5 2688 691860 5083324 137.3

R123 Existing 26.4 40.0 4.5 1769 688057 5084348 37.9

R124 Existing 26.8 40.0 4.5 1872 687905 5084376 35.0

R125 Existing 27.2 40.0 4.5 1826 687828 5084264 47.7

R126 Existing 26.8 40.0 4.5 1946 687657 5084280 33.0

R127 Existing 26.4 40.0 4.5 1905 687955 5084446 28.3

R128 Existing 26.7 40.0 4.5 1944 687703 5084316 34.3

R129 Existing 26.7 40.0 4.5 1930 687780 5084359 34.5

R130 Existing 27.1 40.0 4.5 1920 687424 5084101 29.4

R131 Existing 27.5 40.0 4.5 1883 687173 5083866 50.4

R132 Existing 27.2 40.0 4.5 1924 687226 5083965 39.0

R133 Existing 27.3 40.0 4.5 2064 686789 5083713 19.7

R134 Existing 26.7 40.0 4.5 2212 686691 5083829 10.5

R135 Existing 27.0 40.0 4.5 2012 687037 5083916 25.8

R136 Existing 26.9 40.0 4.5 2189 686690 5083789 10.5

R137 Existing 26.9 40.0 4.5 2101 686881 5083883 15.1

R138 Existing 27.0 40.0 4.5 2089 686840 5083816 17.6

R139 Existing 26.7 40.0 4.5 2182 686738 5083839 10.5

R140 Existing 27.0 40.0 4.5 2091 686689 5083618 17.3

R141 Existing 27.5 40.0 4.5 2096 686454 5083457 16.1

R142 Existing 27.5 40.0 4.5 2063 686331 5083322 10.5

R143 Existing 26.2 40.0 4.5 2002 686758 5083560 33.2

R144 Existing 27.1 40.0 4.5 2178 686527 5083603 10.5

R145 Existing 27.1 40.0 4.5 2163 686654 5083694 10.6

R146 Existing 26.5 40.0 4.5 2020 686723 5083538 31.3

R147 Existing 27.3 40.0 4.5 2131 686520 5083543 13.3

R148 Existing 27.1 40.0 4.5 2180 686581 5083637 10.5

R149 Existing 27.5 40.0 4.5 2076 686402 5083394 13.4

R150 Existing 28.6 40.0 4.5 2021 685995 5082888 13.3

R151 Existing 29.1 40.0 4.5 2072 686004 5082989 10.5

R152 Existing 27.8 40.0 4.5 2057 686237 5083228 10.5

R153 Existing 28.6 40.0 4.5 1978 686083 5082936 16.6

R154 Existing 27.9 40.0 4.5 2082 686111 5083134 10.5

R155 Existing 27.7 40.0 4.5 2053 686258 5083243 10.5

R156 Existing 29.4 40.0 4.5 2080 685927 5082894 10.5

R157 Existing 27.8 40.0 4.5 2082 686137 5083162 10.5



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R158 Existing 27.8 40.0 4.5 2080 686157 5083180 10.5

R159 Existing 29.1 40.0 4.5 2080 685988 5082980 10.5

R160 Existing 27.8 40.0 4.5 2079 686175 5083198 10.5

R161 Existing 28.6 40.0 4.5 1998 686039 5082911 14.5

R162 Existing 28.6 40.0 4.5 1975 686079 5082927 16.2

R163 Existing 28.5 40.0 4.5 2047 685872 5082837 10.5

R164 Existing 28.7 40.0 4.5 2007 685840 5082797 10.5

R165 Existing 28.9 40.0 4.5 1880 685735 5082662 10.5

R166 Existing 29.0 40.0 4.5 1828 685712 5082608 10.5

R167 Existing 29.0 40.0 4.5 1820 685676 5082596 10.5

R168 Existing 29.0 40.0 4.5 1810 685651 5082582 10.5

R169 Existing 29.4 40.0 4.5 1750 685738 5082532 26.8

R170 Existing 28.7 40.0 4.5 1838 685795 5082625 20.0

R171 Existing 29.0 40.0 4.5 1930 685867 5082720 18.0

R172 Existing 28.0 40.0 4.5 2221 682712 5079945 28.7

R173 Existing 27.9 40.0 4.5 2248 682685 5079948 24.7

R174 Existing 27.9 40.0 4.5 2271 682607 5079703 20.2

R175 Existing 27.8 40.0 4.5 2314 682561 5079683 12.6

R176 Existing 27.2 40.0 4.5 2312 682550 5079584 11.9

R177 Existing 27.0 40.0 4.5 2322 682538 5079561 10.6

R178 Existing 25.8 40.0 4.5 2361 682490 5079457 10.5

R179 Existing 28.4 40.0 4.5 2131 682772 5079815 42.8

R180 Existing 28.4 40.0 4.5 2123 682765 5079746 43.7

R181 Existing 28.2 40.0 4.5 2127 682749 5079677 40.5

R182 Existing 28.3 40.0 4.5 2070 682807 5079677 47.4

R183 Existing 26.9 40.0 4.5 2255 682605 5079562 20.6

R184 Existing 24.4 40.0 4.5 2311 682541 5079442 15.5

R185 Existing 23.9 40.0 4.5 2321 682496 5079386 15.2

R186 Existing 23.5 40.0 4.5 2244 682433 5079292 19.9

R187 Existing 24.3 40.0 4.5 2206 682325 5079222 14.1

R188 Existing 24.7 40.0 4.5 2198 682291 5079203 12.0

R189 Existing 24.6 40.0 4.5 2168 682263 5079162 15.4

R190 Existing 28.9 40.0 4.5 1793 681853 5078512 13.7

R191 Existing 29.1 40.0 4.5 1760 681909 5078514 15.3

R192 Existing 25.6 40.0 4.5 2118 682175 5079076 20.6

R193 Existing 25.9 40.0 4.5 2118 682160 5079069 19.9

R194 Existing 26.3 40.0 4.5 2071 682074 5078979 23.3

R195 Existing 27.3 40.0 4.5 2023 681952 5078859 15.4

R196 Existing 27.3 40.0 4.5 2007 681943 5078835 15.6

R197 Existing 27.6 40.0 4.5 1980 681922 5078791 14.5



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R198 Existing 27.8 40.0 4.5 1931 681875 5078701 12.8

R199 Existing 28.5 40.0 4.5 1672 681807 5078310 18.8

R200 Existing 28.4 40.0 4.5 1675 681732 5078236 14.6

R201 Existing 27.5 40.0 4.5 1983 681801 5078711 10.5

R202 Existing 28.2 40.0 4.5 1928 681772 5078619 10.5

R203 Existing 28.3 40.0 4.5 1916 681757 5078592 10.5

R204 Existing 28.3 40.0 4.5 1908 681681 5078515 10.5

R205 Existing 28.5 40.0 4.5 1859 681713 5078479 10.5

R206 Existing 28.5 40.0 4.5 1857 681696 5078459 10.5

R207 Existing 28.5 40.0 4.5 1853 681670 5078428 10.5

R208 Existing 29.8 40.0 4.5 1840 681657 5078396 10.5

R209 Existing 27.9 40.0 4.5 1796 681660 5078336 10.5

R210 Existing 27.9 40.0 4.5 1772 681612 5078245 10.5

R211 Existing 28.0 40.0 4.5 1775 681622 5078261 10.5

R212 Existing 25.8 40.0 4.5 2450 688771 5085257 10.5

R213 Existing 26.3 40.0 4.5 2084 689296 5076768 60.5

R214 Existing 25.6 40.0 4.5 1792 689071 5076579 64.2

R215 Existing 26.8 40.0 4.5 1592 688988 5076330 61.5

R216* Existing 30.2 40.0 4.5 695 688275 5075625 60.5

R217* Existing 30.7 40.0 4.5 645 688226 5075572 58.8

R218* Existing 32.4 40.0 4.5 521 687559 5075064 66.7

R219* Existing 33.6 40.0 4.5 450 687452 5075153 72.9

R220* Existing 35.9 40.0 4.5 333 687846 5075383 68.6

R221* Existing 34.0 40.0 4.5 422 687998 5075520 67.5

R222 Existing 28.5 40.0 4.5 2240 682747 5080114 21.1

R223 Existing 28.3 40.0 4.5 2189 682790 5080082 23.4

R224 Existing 28.1 40.0 4.5 2272 682673 5079994 20.5

R225 Existing 27.8 40.0 4.5 2364 682577 5079994 11.2

R226 Existing 27.8 40.0 4.5 2378 682571 5080023 10.5

R227 Existing 28.4 40.0 4.5 2173 682787 5080027 28.4

R228 Existing 27.8 40.0 4.5 2296 682640 5079966 18.3

R229 Existing 27.7 40.0 4.5 2385 682572 5080051 10.5

R230 Existing 27.3 40.0 4.5 2389 682630 5080223 10.5

R231 Existing 27.6 40.0 4.5 2367 682557 5079933 12.2

R232 Existing 27.8 40.0 4.5 2345 682540 5079749 10.5

R233 Existing 27.5 40.0 4.5 2390 682508 5079819 10.5

R234 Existing 27.6 40.0 4.5 2385 682527 5079885 10.5

R235 Existing 27.6 40.0 4.5 2323 682545 5079638 10.5

R236 Existing 27.7 40.0 4.5 2354 682518 5079668 10.5

R237 Existing 28.9 40.0 4.5 1787 681093 5077111 52.1



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R238 Existing 28.4 40.0 4.5 1913 681017 5077243 29.4

R239* Existing 32.8 40.0 4.5 486 687783 5075143 70.1

R240 Existing 25.6 40.0 4.5 1988 688254 5084681 15.3

R241 Existing 28.9 40.0 4.5 1809 684432 5081834 43.4

* Nearest noise source is the substation transformer

6.2 Impact of Adjacent Planned and Approved Wind Farms At the moment of writing this report, Hatch wasn’t informed of any other planned or approved wind

farms within 5 km of the project area.

7. Conclusion

For the East Bay Hills Wind Project, the sound pressure levels at the POR have been estimated using

the CADNA-A model, based on ISO 9613-2.

Based on the results obtained in this study, it is concluded that the sound pressure levels at the POR,

resulting from the wind farm operation, will be below the limit of 40 dBA at all times.



H339307-0000-00-124-0005, Rev. 5 Page 8-13

© Hatch 2014/05

8. References

Handbook of Noise and Vibration Control; Malcolm J. Crocker, 2007;

IEEE. 2006. C57.12.90-2006: Standard Test Code for Liquid-Immersed, Power and Regulating

Transformers. pp 64 to 76.

NEMA. 2000. Standards Publication No. TR 1-1993 (R2000): Transformers, Regulators and Reactors.

National Electrical Manufacturers Association. 31 pp. (This reference probably not needed now).

International Organization for Standardization (ISO). Standard 1996-1: Description, Measurement

and Assessment of Environmental Noise – Part 1: Basic Quantities and Assessment Procedures.

International Organization for Standardization (ISO). Standard 1913-2: Acoustics – Attenuation of

sound during propagation outdoors – Part 2: General Method of Calculation.

Noise Guidelines for Wind Farms, Ministry of the Environment, Ontario, 2008



H339307-0000-00-124-0005, Rev. 5

© Hatch 2014/05

Appendix A

Project Layout Map

400000

400000

500000

500000

600000

600000

700000

700000

800000

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00

490000

0

500000

0

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510000

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Boyd Lake

Enon Lake

Irish Cove

Munroe Lake

Salmon River

MacNeils Brook

MacDonald Brook

MacCuishs Brook

MacCuishs Brook

MacDonald Brook

Irish Cove Brook

Gaspereaux River

MacPhersons Pond

MacCormicks Lake

Middle Cape Lakes

Jim MacDonalds Brook

Jim MacDonalds Brook

Rear Irish Cove Lakes

681000

681000

682000

682000

683000

683000

684000

684000

685000

685000

686000

686000

687000

687000

688000

688000

689000

689000

690000

690000

691000

691000

692000

692000

507600

0

507600

0

507680

0

507680

0

507760

0

507760

0

507840

0

507840

0

507920

0

507920

0

508000

0

508000

0

508080

0

508080

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508160

0

508160

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508240

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508240

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508320

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0

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DISCLAIMERHatch will not be responsible for any claim, damage, financial or other loss of any kindwhatsoever, direct or indirect, as a result of or arising from conclusions obtained or derivedfrom the information contained or referred to in this document. No information, whether oralor written, obtained by you from Hatch shall create any warranty not expressly statedherein.

Nova Scotia

East Bay Hills

Newfoundland AndLabrador

Prince EdwardIsland

East-Mast

West-Mast



H339307-0000-00-124-0005, Rev. 5

© Hatch 2014/05

Appendix B

Wind Turbine Technical Literature

imagination at work

© 2012 General Electric Company. All rights reserved.

GE Energy – Original Instructions –

Technical Documentation Wind Turbine Generator Systems 1.6-82.5 - 50 Hz and 60 Hz 1.68-82.5 - 60 Hz

Product Acoustic Specifications Normal Operation according to IEC

GE Energy – Original Instructions –

imagination at work

1.6_1.68-82.5_xxHz_SCD_allComp_NO_IECxxxxxx.ENxxx.00a.docx.

Gepower.com Visit us at www.gewindenergy.com

All technical data is subject to change in line with ongoing technical development!

Copyright and patent rights

This document is to be treated confidentially. It may only be made accessible to authorized persons. It may

only be made available to third parties with the expressed written consent of General Electric Company.

All documents are copyrighted within the meaning of the Copyright Act. The transmission and reproduction of

the documents, also in extracts, as well as the exploitation and communication of the contents are not allowed

without express written consent. Contraventions are liable to prosecution and compensation for damage. We

reserve all rights for the exercise of commercial patent rights.

2012 General Electric Company. All rights reserved.

GE and are trademarks and service marks of General Electric Company.

Other company or product names mentioned in this document may be trademarks or registered trademarks of

their respective companies.

GE Energy – Original Instructions – Product Acoustic Specifications

CONFIDENTIAL - Proprietary Information. DO NOT COPY without written consent from General Electric Company. UNCONTROLLED when printed or transmitted electronically.

© 2012 General Electric Company. All rights reserved

1.6_1.68-82.5_xxHz_SCD_allComp_NO_IECxxxxxx.ENxxx.00a.docx x

Table of Contents

1 Introduction.................................................................................................................................................................................................................. 5 2 Sound Power Levels ................................................................................................................................................................................................ 5

2.1 LWA as a function of hub height wind speed ................................................................................................................................... 5 2.2 LWA as a function of wind speed at 10 m height ........................................................................................................................... 6

3 Uncertainty Levels .................................................................................................................................................................................................... 6 4 Tonality ........................................................................................................................................................................................................................... 6 5 Octave Band Spectra .............................................................................................................................................................................................. 7




1.6_1.68-82.5_xxHz_SCD_allComp_NO_IECxxxxxx.ENxxx.00a.docx 5/7

1 Introduction

The noise emission characteristics of the wind turbine series 1.6 MW and 1.68 MW with a rotor diameter of

82.5 m including Cold Weather Extreme versions, comprise sound power level data, tonality values, and octave

band spectra.

This document describes the noise characteristics of the turbine for normal operation. Noise-reduced

operating modes are not taken into consideration in this case.

GE continuously verifies specifications with measurements, including those performed by independent

institutes.

The sound power level (LWA) is calculated at hub height over the entire wind speed range from cut-in to cut out

wind speed. Tabled specifications for LWA are given as a function of hub height wind speed (reference values)

together with an uncertainty band.

Also reference LWA-values as a function of wind speed at 10 m height are provided, assuming different

standard hub heights and a logarithmic wind profile according to a surface roughness z0, ref = 0.03 m, see

section 2.2. Similar characteristics for different combinations of hub height and wind shear profile can be

provided upon request.

If a wind turbine noise performance test is carried out, it needs to be done in accordance with the regulations

of the international standard IEC 61400-11, ed. 2: 2002 (abstract available upon request).

2 Sound Power Levels

2.1 LWA as a function of hub height wind speed

The following table provides the calculated reference sound power level values as a function of wind speed.

Wind speed at hub height [m/s] 1.6-82.5 all hub heights

1.68-82.5, 80 m hub height LWA [dB]

3 < 96

4 < 96

5 < 96

6 < 99

7 < 102

8 < 104

9 106

10 – cut out 106

Table 1: Calculated reference sound power level values

GE Energy Product Acoustic Specifications




2.2 LWA as a function of wind speed at 10 m height

Following are tabled values for the LWA as a function of the wind speed at 10 m height for different hub heights.

The wind speed is converted using a logarithmic wind profile, in this case using a surface roughness of z0ref =

0.03m, which is representative for average terrain conditions.

ref

ref

hubheightm

zheighthub

zm

VV

0

0

10

ln

10ln

1

Wind speed at 10m height [m/s]

1.6-82.5 m rotor diameter 64.7 m HH LWA [dB]

1.6 and 1.68 82.5 m rotor diameter

80 m HH LWA [dB]

1.6-82.5 m rotor diameter 100 m HH LWA [dB]

3 < 96 < 96 < 96

4 < 96 < 98 < 99

5 < 102 < 102 < 102

6 < 104 < 104 106

7 – cut out 106 106 106

Table 2: Reference sound power levels as a function of 10 m wind speed

3 Uncertainty Levels

Mean uncertainty levels for the sound power, or K-factors, are derived from independent measurements. Their

value depends on the applied probability level and standard deviation for reproducibility ( R), as described in

the IEC 61400-14 TS ed. 1: 2005. Because the K-factor depends on the quality of the measurements, the

number of the measurements, and on local regulations, a fixed value is used to define the uncertainty band

with respect to the reference sound power level.

For all 1.6-82.5 and 1.68-82.5 wind turbines an uncertainty band of K ≤ 2.0 dB is defined.

4 Tonality

At the reference measuring point Ro, a ground distance from the turbine base equal to hub height plus half the

rotor diameter, the 1.6-82.5 and the 1.68-82.5 turbine has a value for tonality of La 4 dB, irrespective of

wind speed, hub height, and grid frequency.2

1 Simplified from IEC 61400-11, ed. 2: 2002 equation 7 2 R0 and La are defined here according to IEC 61400-11: 2002





5 Octave Band Spectra

Following is a table with the octave band values at nominal turbine operation, typically corresponding to wind

speeds larger than 10 m/s at 10 m height.

Octave band spectra as a function of smaller wind speed at 10 m height depend on hub height and surface

roughness. Indicative octave band values can be derived using the table below thereby multiplying the tabled

values below with the LWA level for a given wind speed at 10 m height (section 2) and dividing this by 106 dB(A):

Octave Band value (Vi, 10-m) = Octave Band value (nominal operation) . LWA (Vi, 10-m) / 106 dB(A).

Note: The octave band spectra are informative only.

Octave [Hz]

Sound power level [dB]

63 84.8

125 93.6

250 99.2

500 100.8

1000 100.1

2000 97.3

4000 89.1

8000 86.2

Sum 106

Table 3: Octave band spectra



H339307-0000-00-124-0005, Rev. 5

© Hatch 2014/05

Appendix C

Substation Transformer

Estimated Frequency Spectra for Transformers

Erieau Blenheim Transformer - 34.5kV/230kV/99MVA - Oil filled Surface (m2) Height (m) Width (m) Depth (m)63.000 3.500 5.000 4.000

From Robert D. Stevens and Chris Hung, "Toward a realistic estimate of octave band sound levels for electrical transformers" paper

Average LpA 74.0 dBA Based on NEMA TR1-1993 (R2000), Table 0-2, immersed power transformersEstimated surface area 63.0 m^2 Ref.: XFMR Dimensions 2.pdf

Correction factors to be used with meters^2Freq. [Hz] 31 63 125 250 500 1000 2000 4000 8000Correction [dB] -5.0 -1.0 2.0 0.0 0.0 -6.0 -11.0 -16.0 -24.0

Sound Power Level calculated as Lw=Average LpA + 10*log(Estimated surface area in m^2) + CFreq. [Hz] 31 63 125 250 500 1000 2000 4000 8000 Combined [dB]Sound Power Level calculated as Lw=Average LpA + 10*log(Estimated surface area in m^2) + CFreq. [Hz] 31 63 125 250 500 1000 2000 4000 8000 Combined [dB]Sound Power, Lw [dB] 87.0 91.0 94.0 92.0 92.0 86.0 81.0 76.0 68.0 99.0

Resulting A-weighted sound power level, LwAFreq. [Hz] 31 63 125 250 500 1000 2000 4000 8000 Combined [dBA]A-Weight [dB] -39.4 -26.2 -16.1 -8.6 -3.2 0.0 1.2 1.0 -1.1 -Sound Power, LwA [dBA] 47.6 64.8 77.9 83.4 88.8 86.0 82.2 77.0 66.9 92.2

400000

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Lake Uist

Boyd Lake

Enon Lake

Sand Cove

Irish Cove

Munroe Lake

Salmon River

Salmon River

McCuish Brook

McCuish Brook

Morrison Lake

Cemetery Lake

MacNeils Lake

Morrison Brook

MacLeods Brook

MacLeods Brook

MacNeils Brook

MacDonald Brook

MacCuishs Brook

Powderhorn Lake

MacCuishs Brook

MacDonald Brook

Gaspereaux Lake

Irish Cove Brook

MacIntyres Brook

Gaspereaux River

MacPhersons Pond

Irish Cove Brook

Gaspereaux River

MacIntyres Brook

MacCormicks Lake

Lochmore Harbour

Middle Cape Lakes

Little MacLeod Brook

Jim MacDonalds BrookJim MacDonalds Brook

Little MacCuish Brook

John MacKeigans Brook

John MacKeigans Brook

Rear Irish Cove Lakes

Middle River FramboiseMiddle River Framboise

Archie MacKeigans Brook

Archie MacKeigans Brook

678000

678000

681000

681000

684000

684000

687000

687000

690000

690000

693000

693000

507400

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507400

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507600

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507600

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507800

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507800

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508000

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508000

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508200

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508400

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Figure D1East Bay Hills Noise Contours at 4.5mDISCLAIMERHatch will not be responsible for any claim, damage, financial or other loss of any kindwhatsoever, direct or indirect, as a result of or arising from conclusions obtained or derivedfrom the information contained or referred to in this document. No information, whether oralor written, obtained by you from Hatch shall create any warranty not expressly statedherein.

Nova Scotia

East Bay Hills


Prince EdwardIsland

East-Mast

West-Mast

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Sound Pressure LeveldBA

400000

400000

500000

500000

600000

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MacIntyresBrook

GaspereauxRiver

MacIntyresBrook

687000

687000

688000

688000

689000

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690000

690000

691000

691000

692000

692000

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508320

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Figure D2East Bay Hills Noise Contours at 4.5mSheet 1 of 4 (Subset of Figure D1)DISCLAIMERHatch will not be responsible for any claim, damage, financial or other loss of any kindwhatsoever, direct or indirect, as a result of or arising from conclusions obtained or derivedfrom the information contained or referred to in this document. No information, whether oralor written, obtained by you from Hatch shall create any warranty not expressly statedherein.

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MacPhersonsPond

MacNeilsBrook

683000

683000

684000

684000

685000

685000

686000

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682000

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684000

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686000

686000

687000

687000

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ConfigurationParameter Value

GeneralCountry (user defined)Max. Error (dB) 0.00Max. Search Radius (m) 5000.00Min. Dist Src to Rcvr 0.00PartitionRaster Factor 0.50Max. Length of Section (m) 1000.00Min. Length of Section (m) 1.00Min. Length of Section (%) 0.00Proj. Line Sources OnProj. Area Sources OnRef. TimeReference Time Day (min) 960.00Reference Time Night (min) 480.00Daytime Penalty (dB) 0.00Recr. Time Penalty (dB) 0.00Night-time Penalty (dB) 0.00DTMStandard Height (m) 0.00Model of Terrain TriangulationReflectionmax. Order of Reflection 1Search Radius Src 100.00Search Radius Rcvr 100.00Max. Distance Source - Rcvr 1000.00 1000.00Min. Distance Rvcr - Reflector 1.00 1.00Min. Distance Source - Reflector 0.10Industrial (ISO 9613)Lateral Diffraction some ObjObst. within Area Src do not shield OnScreening Excl. Ground Att. over Barrier Dz with limit (20/25)Barrier Coefficients C1,2,3 3.0 20.0 0.0Temperature (°C) 10rel. Humidity (%) 70Ground Absorption G 0.70Wind Speed for Dir. (m/s) 3.0Roads (RLS-90)Strictly acc. to RLS-90Railways (???)Aircraft (???)Strictly acc. to AzB

Receiver Name: Existing ID: R220 X: 687845.64 Y: 5075382.51 Z: 68.61

Point Source, ISO 9613, Name: ''Substation'', ID: ''Subs Transf 53.3MVA''Nr. X Y Z Refl. Freq. LxT LxN K0 Dc Adiv Aatm Agr Afol Ahous Abar Cmet RL LrT LrN

(m) (m) (m) (Hz) dB(A) dB(A) (dB) (dB) (dB) (dB) (dB) (dB) (dB) (dB) (dB) (dB) dB(A) dB(A)1 687580.92 5075584.59 97.59 0 32 52.6 52.6 0.0 0.0 61.5 0.0 -3.8 0.0 0.0 0.0 0.0 -0.0 -5.1 -5.12 687580.92 5075584.59 97.59 0 63 69.8 69.8 0.0 0.0 61.5 0.0 -3.8 0.0 0.0 0.0 0.0 -0.0 12.1 12.13 687580.92 5075584.59 97.59 0 125 82.9 82.9 0.0 0.0 61.5 0.1 3.0 0.0 0.0 0.0 0.0 -0.0 18.3 18.34 687580.92 5075584.59 97.59 0 250 88.4 88.4 0.0 0.0 61.5 0.4 1.8 0.0 0.0 0.0 0.0 -0.0 24.8 24.85 687580.92 5075584.59 97.59 0 500 93.8 93.8 0.0 0.0 61.5 0.6 -1.1 0.0 0.0 0.0 0.0 -0.0 32.8 32.86 687580.92 5075584.59 97.59 0 1000 91.0 91.0 0.0 0.0 61.5 1.2 -1.2 0.0 0.0 0.0 0.0 -0.0 29.4 29.47 687580.92 5075584.59 97.59 0 2000 87.2 87.2 0.0 0.0 61.5 3.2 -1.2 0.0 0.0 0.0 0.0 -0.0 23.6 23.68 687580.92 5075584.59 97.59 0 4000 82.0 82.0 0.0 0.0 61.5 11.0 -1.2 0.0 0.0 0.0 0.0 -0.0 10.7 10.79 687580.92 5075584.59 97.59 0 8000 71.9 71.9 0.0 0.0 61.5 39.1 -1.2 0.0 0.0 0.0 0.0 -0.0 -27.5 -27.5

Point Source, ISO 9613, Name: ''Lay4_05Mar14'', ID: ''1''Nr. X Y Z Refl. Freq. LxT LxN K0 Dc Adiv Aatm Agr Afol Ahous Abar Cmet RL LrT LrN

(m) (m) (m) (Hz) dB(A) dB(A) (dB) (dB) (dB) (dB) (dB) (dB) (dB) (dB) (dB) (dB) dB(A) dB(A)1 683260.00 5076418.00 241.00 0 63 84.8 84.8 0.0 0.0 84.5 0.6 -4.4 0.0 0.0 4.8 0.0 -0.0 -0.6 -0.62 683260.00 5076418.00 241.00 0 125 93.6 93.6 0.0 0.0 84.5 1.9 1.4 0.0 0.0 3.4 0.0 -0.0 2.4 2.43 683260.00 5076418.00 241.00 0 250 99.2 99.2 0.0 0.0 84.5 4.9 -0.3 0.0 0.0 4.8 0.0 -0.0 5.4 5.44 683260.00 5076418.00 241.00 0 500 100.8 100.8 0.0 0.0 84.5 9.1 -1.3 0.0 0.0 4.8 0.0 -0.0 3.8 3.85 683260.00 5076418.00 241.00 0 1000 100.1 100.1 0.0 0.0 84.5 17.2 -1.3 0.0 0.0 4.8 0.0 -0.0 -5.0 -5.06 683260.00 5076418.00 241.00 0 2000 97.3 97.3 0.0 0.0 84.5 45.5 -1.3 0.0 0.0 4.8 0.0 -0.0 -36.1 -36.17 683260.00 5076418.00 241.00 0 4000 89.1 89.1 0.0 0.0 84.5 154.2 -1.3 0.0 0.0 4.8 0.0 -0.0 -153.0 -153.08 683260.00 5076418.00 241.00 0 8000 86.2 86.2 0.0 0.0 84.5 549.8 -1.3 0.0 0.0 4.8 0.0 -0.0 -551.5 -551.5




(m) (m) (m) (Hz) dB(A) dB(A) (dB) (dB) (dB) (dB) (dB) (dB) (dB) (dB) (dB) (dB) dB(A) dB(A)1 684250.00 5076443.00 257.00 0 63 84.8 84.8 0.0 0.0 82.5 0.5 -4.0 0.0 0.0 4.8 0.0 -0.0 1.1 1.12 684250.00 5076443.00 257.00 0 125 93.6 93.6 0.0 0.0 82.5 1.5 1.5 0.0 0.0 3.3 0.0 -0.0 4.8 4.83 684250.00 5076443.00 257.00 0 250 99.2 99.2 0.0 0.0 82.5 3.9 -0.2 0.0 0.0 4.8 0.0 -0.0 8.2 8.24 684250.00 5076443.00 257.00 0 500 100.8 100.8 0.0 0.0 82.5 7.2 -1.2 0.0 0.0 4.8 0.0 -0.0 7.5 7.55 684250.00 5076443.00 257.00 0 1000 100.1 100.1 0.0 0.0 82.5 13.7 -1.2 0.0 0.0 4.8 0.0 -0.0 0.3 0.36 684250.00 5076443.00 257.00 0 2000 97.3 97.3 0.0 0.0 82.5 36.3 -1.2 0.0 0.0 4.8 0.0 -0.0 -25.0 -25.07 684250.00 5076443.00 257.00 0 4000 89.1 89.1 0.0 0.0 82.5 123.0 -1.2 0.0 0.0 4.8 0.0 -0.0 -120.0 -120.08 684250.00 5076443.00 257.00 0 8000 86.2 86.2 0.0 0.0 82.5 438.7 -1.2 0.0 0.0 4.8 0.0 -0.0 -438.6 -438.6


(m) (m) (m) (Hz) dB(A) dB(A) (dB) (dB) (dB) (dB) (dB) (dB) (dB) (dB) (dB) (dB) dB(A) dB(A)1 684484.00 5077083.00 251.08 0 63 84.8 84.8 0.0 0.0 82.5 0.5 -4.0 0.0 0.0 4.8 0.0 -0.0 1.0 1.02 684484.00 5077083.00 251.08 0 125 93.6 93.6 0.0 0.0 82.5 1.6 1.5 0.0 0.0 3.3 0.0 -0.0 4.8 4.83 684484.00 5077083.00 251.08 0 250 99.2 99.2 0.0 0.0 82.5 3.9 -0.2 0.0 0.0 4.8 0.0 -0.0 8.2 8.24 684484.00 5077083.00 251.08 0 500 100.8 100.8 0.0 0.0 82.5 7.3 -1.2 0.0 0.0 4.8 0.0 -0.0 7.4 7.4


(m) (m) (m) (Hz) dB(A) dB(A) (dB) (dB) (dB) (dB) (dB) (dB) (dB) (dB) (dB) (dB) dB(A) dB(A)5 684484.00 5077083.00 251.08 0 1000 100.1 100.1 0.0 0.0 82.5 13.8 -1.2 0.0 0.0 4.8 0.0 -0.0 0.2 0.26 684484.00 5077083.00 251.08 0 2000 97.3 97.3 0.0 0.0 82.5 36.4 -1.2 0.0 0.0 4.8 0.0 -0.0 -25.3 -25.37 684484.00 5077083.00 251.08 0 4000 89.1 89.1 0.0 0.0 82.5 123.6 -1.2 0.0 0.0 4.8 0.0 -0.0 -120.6 -120.68 684484.00 5077083.00 251.08 0 8000 86.2 86.2 0.0 0.0 82.5 440.8 -1.2 0.0 0.0 4.8 0.0 -0.0 -440.8 -440.8




(m) (m) (m) (Hz) dB(A) dB(A) (dB) (dB) (dB) (dB) (dB) (dB) (dB) (dB) (dB) (dB) dB(A) dB(A)1 685976.00 5076629.00 236.00 0 63 84.8 84.8 0.0 0.0 78.1 0.3 -3.0 0.0 0.0 4.8 0.0 -0.0 4.7 4.72 685976.00 5076629.00 236.00 0 125 93.6 93.6 0.0 0.0 78.1 0.9 1.8 0.0 0.0 3.0 0.0 -0.0 9.9 9.93 685976.00 5076629.00 236.00 0 250 99.2 99.2 0.0 0.0 78.1 2.3 0.1 0.0 0.0 4.7 0.0 -0.0 14.0 14.04 685976.00 5076629.00 236.00 0 500 100.8 100.8 0.0 0.0 78.1 4.3 -0.9 0.0 0.0 4.8 0.0 -0.0 14.5 14.55 685976.00 5076629.00 236.00 0 1000 100.1 100.1 0.0 0.0 78.1 8.2 -0.9 0.0 0.0 4.8 0.0 -0.0 9.9 9.96 685976.00 5076629.00 236.00 0 2000 97.3 97.3 0.0 0.0 78.1 21.8 -0.9 0.0 0.0 4.8 0.0 -0.0 -6.4 -6.47 685976.00 5076629.00 236.00 0 4000 89.1 89.1 0.0 0.0 78.1 73.8 -0.9 0.0 0.0 4.8 0.0 -0.0 -66.7 -66.78 685976.00 5076629.00 236.00 0 8000 86.2 86.2 0.0 0.0 78.1 263.4 -0.9 0.0 0.0 4.8 0.0 -0.0 -259.1 -259.1


(m) (m) (m) (Hz) dB(A) dB(A) (dB) (dB) (dB) (dB) (dB) (dB) (dB) (dB) (dB) (dB) dB(A) dB(A)1 685879.00 5077059.00 242.64 0 63 84.8 84.8 0.0 0.0 79.3 0.3 -3.1 0.0 0.0 4.8 0.0 -0.0 3.5 3.52 685879.00 5077059.00 242.64 0 125 93.6 93.6 0.0 0.0 79.3 1.1 1.8 0.0 0.0 3.0 0.0 -0.0 8.5 8.53 685879.00 5077059.00 242.64 0 250 99.2 99.2 0.0 0.0 79.3 2.7 0.1 0.0 0.0 4.7 0.0 -0.0 12.5 12.54 685879.00 5077059.00 242.64 0 500 100.8 100.8 0.0 0.0 79.3 5.0 -0.9 0.0 0.0 4.8 0.0 -0.0 12.7 12.75 685879.00 5077059.00 242.64 0 1000 100.1 100.1 0.0 0.0 79.3 9.5 -0.9 0.0 0.0 4.8 0.0 -0.0 7.5 7.56 685879.00 5077059.00 242.64 0 2000 97.3 97.3 0.0 0.0 79.3 25.0 -0.9 0.0 0.0 4.8 0.0 -0.0 -10.9 -10.97 685879.00 5077059.00 242.64 0 4000 89.1 89.1 0.0 0.0 79.3 84.9 -0.9 0.0 0.0 4.8 0.0 -0.0 -78.9 -78.98 685879.00 5077059.00 242.64 0 8000 86.2 86.2 0.0 0.0 79.3 302.7 -0.9 0.0 0.0 4.8 0.0 -0.0 -299.7 -299.7








(m) (m) (m) (Hz) dB(A) dB(A) (dB) (dB) (dB) (dB) (dB) (dB) (dB) (dB) (dB) (dB) dB(A) dB(A)1 684960.00 5077924.00 256.87 0 63 84.8 84.8 0.0 0.0 82.7 0.5 -4.0 0.0 0.0 4.8 0.0 -0.0 0.9 0.92 684960.00 5077924.00 256.87 0 125 93.6 93.6 0.0 0.0 82.7 1.6 1.5 0.0 0.0 3.3 0.0 -0.0 4.5 4.53 684960.00 5077924.00 256.87 0 250 99.2 99.2 0.0 0.0 82.7 4.0 -0.2 0.0 0.0 4.8 0.0 -0.0 7.9 7.94 684960.00 5077924.00 256.87 0 500 100.8 100.8 0.0 0.0 82.7 7.4 -1.2 0.0 0.0 4.8 0.0 -0.0 7.1 7.15 684960.00 5077924.00 256.87 0 1000 100.1 100.1 0.0 0.0 82.7 14.1 -1.2 0.0 0.0 4.8 0.0 -0.0 -0.3 -0.36 684960.00 5077924.00 256.87 0 2000 97.3 97.3 0.0 0.0 82.7 37.2 -1.2 0.0 0.0 4.8 0.0 -0.0 -26.2 -26.27 684960.00 5077924.00 256.87 0 4000 89.1 89.1 0.0 0.0 82.7 126.2 -1.2 0.0 0.0 4.8 0.0 -0.0 -123.3 -123.38 684960.00 5077924.00 256.87 0 8000 86.2 86.2 0.0 0.0 82.7 450.0 -1.2 0.0 0.0 4.8 0.0 -0.0 -450.1 -450.1


(m) (m) (m) (Hz) dB(A) dB(A) (dB) (dB) (dB) (dB) (dB) (dB) (dB) (dB) (dB) (dB) dB(A) dB(A)1 685553.00 5078599.00 257.00 0 63 84.8 84.8 0.0 0.0 82.9 0.5 -4.1 0.0 0.0 4.8 0.0 -0.0 0.7 0.72 685553.00 5078599.00 257.00 0 125 93.6 93.6 0.0 0.0 82.9 1.6 1.5 0.0 0.0 3.3 0.0 -0.0 4.3 4.33 685553.00 5078599.00 257.00 0 250 99.2 99.2 0.0 0.0 82.9 4.1 -0.3 0.0 0.0 4.8 0.0 -0.0 7.6 7.64 685553.00 5078599.00 257.00 0 500 100.8 100.8 0.0 0.0 82.9 7.6 -1.2 0.0 0.0 4.8 0.0 -0.0 6.7 6.75 685553.00 5078599.00 257.00 0 1000 100.1 100.1 0.0 0.0 82.9 14.5 -1.2 0.0 0.0 4.8 0.0 -0.0 -0.9 -0.96 685553.00 5078599.00 257.00 0 2000 97.3 97.3 0.0 0.0 82.9 38.2 -1.2 0.0 0.0 4.8 0.0 -0.0 -27.4 -27.47 685553.00 5078599.00 257.00 0 4000 89.1 89.1 0.0 0.0 82.9 129.6 -1.2 0.0 0.0 4.8 0.0 -0.0 -127.0 -127.08 685553.00 5078599.00 257.00 0 8000 86.2 86.2 0.0 0.0 82.9 462.2 -1.2 0.0 0.0 4.8 0.0 -0.0 -462.5 -462.5






(m) (m) (m) (Hz) dB(A) dB(A) (dB) (dB) (dB) (dB) (dB) (dB) (dB) (dB) (dB) (dB) dB(A) dB(A)1 686344.00 5078833.00 258.30 0 63 84.8 84.8 0.0 0.0 82.5 0.5 -4.0 0.0 0.0 4.8 0.0 -0.0 1.0 1.02 686344.00 5078833.00 258.30 0 125 93.6 93.6 0.0 0.0 82.5 1.6 1.5 0.0 0.0 3.3 0.0 -0.0 4.8 4.83 686344.00 5078833.00 258.30 0 250 99.2 99.2 0.0 0.0 82.5 3.9 -0.2 0.0 0.0 4.8 0.0 -0.0 8.2 8.24 686344.00 5078833.00 258.30 0 500 100.8 100.8 0.0 0.0 82.5 7.3 -1.2 0.0 0.0 4.8 0.0 -0.0 7.4 7.4


(m) (m) (m) (Hz) dB(A) dB(A) (dB) (dB) (dB) (dB) (dB) (dB) (dB) (dB) (dB) (dB) dB(A) dB(A)5 686344.00 5078833.00 258.30 0 1000 100.1 100.1 0.0 0.0 82.5 13.8 -1.2 0.0 0.0 4.8 0.0 -0.0 0.2 0.26 686344.00 5078833.00 258.30 0 2000 97.3 97.3 0.0 0.0 82.5 36.4 -1.2 0.0 0.0 4.8 0.0 -0.0 -25.2 -25.27 686344.00 5078833.00 258.30 0 4000 89.1 89.1 0.0 0.0 82.5 123.5 -1.2 0.0 0.0 4.8 0.0 -0.0 -120.5 -120.58 686344.00 5078833.00 258.30 0 8000 86.2 86.2 0.0 0.0 82.5 440.4 -1.2 0.0 0.0 4.8 0.0 -0.0 -440.3 -440.3








(m) (m) (m) (Hz) dB(A) dB(A) (dB) (dB) (dB) (dB) (dB) (dB) (dB) (dB) (dB) (dB) dB(A) dB(A)1 684849.00 5079340.00 258.18 0 63 84.8 84.8 0.0 0.0 84.9 0.6 -4.5 0.0 0.0 4.8 0.0 -0.0 -1.0 -1.02 684849.00 5079340.00 258.18 0 125 93.6 93.6 0.0 0.0 84.9 2.0 1.3 0.0 0.0 3.4 0.0 -0.0 1.9 1.93 684849.00 5079340.00 258.18 0 250 99.2 99.2 0.0 0.0 84.9 5.2 -0.4 0.0 0.0 4.8 0.0 -0.0 4.7 4.74 684849.00 5079340.00 258.18 0 500 100.8 100.8 0.0 0.0 84.9 9.6 -1.3 0.0 0.0 4.8 0.0 -0.0 2.9 2.95 684849.00 5079340.00 258.18 0 1000 100.1 100.1 0.0 0.0 84.9 18.2 -1.3 0.0 0.0 4.8 0.0 -0.0 -6.4 -6.46 684849.00 5079340.00 258.18 0 2000 97.3 97.3 0.0 0.0 84.9 48.0 -1.3 0.0 0.0 4.8 0.0 -0.0 -39.1 -39.17 684849.00 5079340.00 258.18 0 4000 89.1 89.1 0.0 0.0 84.9 162.8 -1.3 0.0 0.0 4.8 0.0 -0.0 -

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Cape Breton Hydro Inc. Noise Assessment Report East Bay ......Cape Breton Hydro Inc. (the “Client”), a subsidiary of BluEarth Renewables Inc., is proposing to develop an approximately