REPORT Noise Measurements Baseline Report · sandi heads lig ht ouse delta richmond vancouver deas...

REPORT

Noise Measurements Baseline Report WesPac Tilbury Marine Jetty Project

Submitted to:

WesPac Midstream-Vancouver LLC

Submitted by:

Golder Associates Ltd. Suite 200 - 2920 Virtual Way, Vancouver, British Columbia, V5M 0C4, Canada

+1 604 296 4200

1314220049-136-R-Rev0

13 August 2018

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Distribution List electronic copy: WesPac Midstream-Vancouver LLC

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Table of Contents

1.0 INTRODUCTION ............................................................................................................................................. 1

2.0 NOISE MONITORING APPROACH ............................................................................................................... 1

2.1 Noise Monitoring Area and Receptors ................................................................................................. 1

2.2 Noise Monitoring Methodology ............................................................................................................ 4

2.3 Data Analysis Approach ....................................................................................................................... 4

2.3.1 Broadband Noise Analysis Approach ............................................................................................. 5

2.3.2 Low Frequency Noise Analysis Approach ...................................................................................... 5

3.0 RESULTS ........................................................................................................................................................ 6

3.1 Monitoring Site R1 ................................................................................................................................ 6

3.1.1 Broadband Noise ............................................................................................................................ 6

3.1.2 Low Frequency Noise ................................................................................................................... 10

3.2 Monitoring Site R2 .............................................................................................................................. 10

3.2.1 Broadband Noise .......................................................................................................................... 10

3.2.2 Low Frequency Noise ..................................................................................................................... 2


3.3.1 Broadband Noise ............................................................................................................................ 2

3.3.2 Low Frequency Noise ..................................................................................................................... 6


3.4.1 Broadband Noise ............................................................................................................................ 6

3.4.2 Low Frequency Noise ................................................................................................................... 16

4.0 SUMMARY .................................................................................................................................................... 16

5.0 CLOSURE ..................................................................................................................................................... 17

6.0 REFERENCES .............................................................................................................................................. 18

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TABLES

Table 1: Location of Noise Monitoring Sites ............................................................................................................. 2

Table 2: Filtered Hourly Noise Levels at Monitoring Site R1 .................................................................................... 9

Table 3: Table 3: Low Frequency Analysis for the Monitoring Site R1 .................................................................. 10


Table 5: Low Frequency Analysis for the Monitoring Site R2................................................................................... 2


Table 7: Low Frequency Analysis for the Monitoring Site R3................................................................................... 6


Table 9: Low Frequency Analysis for the Monitoring Site R4................................................................................. 16

Table 10: Daytime and Nighttime Noise Levels at WesPac Monitoring Sites ........................................................ 16

FIGURES

Figure 1: Location of Baseline Noise Receptors ...................................................................................................... 3

Figure 2: One-minute Noise Data Recorded at Monitoring Site R1 ......................................................................... 8

Figure 3: One-minute Noise Data Recorded at Monitoring Site R2 ....................................................................... 12



APPENDICES

APPENDIX A Calibration Data

APPENDIX B Weather Data

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1.0 INTRODUCTION WesPac Midstream–Vancouver LLC (WesPac) retained Golder Associated Ltd. (Golder) to conduct

environmental noise monitoring within the area of the proposed WesPac Tilbury Marine Jetty Project (Project)

located on Tilbury Island in Delta, British Columbia. The baseline noise survey was conducted to collect data that

will be used in the assessment of potential Project effects related to noise.

This report presents the methods and results of baseline noise monitoring collected at three monitoring sites

from September 28 to October 5, 2015 and one monitoring site from February 1 to 2, 2016.

2.0 NOISE MONITORING APPROACH In the province of British Columbia the assessment of noise emissions from oil and gas processing facilities falls

under jurisdiction of the BC Oil and Gas Commission (OGC) and is guided by the BC Oil and Gas Commission’s

British Columbia Noise Control Best Practices Guideline (OGC Guideline) (British Columbia Oil and Gas

Commission, 2009). The OGC Guideline does not provide detailed description of baseline noise measurement

methodology. However, the underlining principle of the OGC guideline is analogous to the Alberta Energy

Regulator’s Directive 038: Noise Control (Directive 038) (Alberta Energy and Utilities Board, 2007).

Directive 038 provides a detailed description of methodology used during baseline field measurements and data

analysis. Therefore, to establish baseline levels relevant for the Project, the baseline noise measurement

program and subsequent data analysis were conducted based on the approach outlined in Directive 038.

Directive 038 specifies that noise baseline measurements should be assessed at the most impacted residences

located within the 1.5 km from the Project boundary. In the absence of seasonally or permanently occupied

dwellings located within the 1.5 km from the Project boundary, the noise levels are to be measured or assessed

along a boundary located at the distance of the 1.5 km from the Project boundary. Based on analysis of available

information, four locations were selected to conduct the baseline noise monitoring.

2.1 Noise Monitoring Area and Receptors The future site of the Project, on Tilbury Island, is already exposed to various industrial developments. The

existing baseline noise levels are influenced by noise emissions from nearby construction, vehicular, railway,

shipping, and airplane traffic.

The Local Assessment Area (LAA) for the assessment of noise from the Project extends out 1.5 km in all

directions from the Project boundary and 1 km from the proposed shipping route (Figure 1). This definition of the

noise LAA is consistent with the OGC Guideline. The Regional Assessment Area (RAA) for the assessment of

noise extends out 3 km in all directions from the Project boundary and 1.5 km from the proposed shipping route

(Figure 1). The OGC Guideline and Directive 038 lack instructions for defining noise RAA. In the absence of

regulatory guidance, the noise RAA for the Project has been selected to include the entire area over which direct

or cumulative effects from the Project could potentially be observed. Beyond the RAA, noise from the Project is

expected to be attenuated to such a level that it cannot be discerned from the ambient noise that is already in an

area.

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To characterize potential impacts of the Project, the baseline noise level was measured at four monitoring sites

representing noise sensitive receptors within the noise LAA. The distance between the Project Site and baseline

receptors varied between 150 m and 1300 m. Descriptions of the receptors and their locations are presented in

Table 1 and on Figure 1.

Table 1: Location of Noise Monitoring Sites

Noise

Monitoring

Site

Monitoring Site Description Universal Transverse Mercator

Location

(Zone 10, NAD 83)

Easting [m] Northing [m]

R1 Residence located 440 m south of the Project boundary. 497485 5442408

R2 Animal shelter located across from Tilbury Road from the

Project site, approximately 150 m southeast of the

Project boundary.

497936 5442905

R3 Site representing First Nations village of Tl’uqtinus,

located 300 m north of the Project boundary.

496572 5443700

R4 Residence located 1300 m southwest of the Project

boundary and within 300 m of the proposed shipping

route.

495486 5442455

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1. INDIAN RESERVES, TSAWWASSEN FIRST NATION LANDS AND MUNICIPALBOUNDARIES OBTAINED BY B.C. MINISTRY OF FORESTS, LANDS AND NATURALRESOURCE OPERATIONS.2. RAILWAY, WATER, FOREST, PARKS, WATERCOURSE, WATERBODY AND RESIDENTIALAREA DATA OBTAINED FROM CANVEC © DEPARTMENT OF NATURAL RESOURCESCANADA. ALL RIGHTS RESERVED.3. IMAGERY OBTAINED FROM BING MAPS FOR ARCGIS PUBLISHED BY MICROSOFTCORPORATION, REDMOND, WA, MAY 2009. TOPO BASEMAP © ESRI AND ITSLICENSORS. ALL RIGHTS RESERVED.PROJECTION: UTM ZONE 10; DATUM: NAD 83

WESPAC MIDSTREAM - VANCOUVER LLC

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2.2 Noise Monitoring Methodology The baseline noise monitoring program was conducted between September 28 to October 5, 2015 and February

1 to 2, 2016; the methodology of the survey was in accordance with Directive 038. At each receptor location the

noise monitoring was conducted for approximately 24 hours except for R4, which was monitored for one week at

the residents’ request. A survey of 24 hours is considered sufficiently long to allow for collection of noise data

characterizing daytime and nighttime variability of noise levels within the area surrounding the receptor.

At each monitoring location, a Model 2250 Brüel and Kjær Type I integrating sound level meter (SLM) was used

to collect noise measurements and to record audible sound for the entire duration of monitoring program.

Data parameters recorded during the baseline monitoring survey included:

Equivalent energy noise level over a one-minute time period (Leq,1min) in A-weighted decibels (dBA);

1/3 octave band Leq values over a one-minute time period in unweighted decibels (dB); and

Audio data continuously in *.wav format files.

Each SLM used during the survey was calibrated with a Brüel and Kjær Type 4231 calibrator immediately before

and after each monitoring period to ensure the SLM’s variance was within 1 dB. The calibration data was logged

by the meter and calibration results were recorded in the field notes. The recordings of calibration signals are

documented in Appendix A.

Directive 038 requires that monitoring be conducted under meteorological conditions acceptable for noise

measurement, which includes restrictions on maximum wind speed and the absence of active precipitation

(Alberta Energy and Utilities Board, 2007). During the survey, weather data was collected using Nielsen-

Kellerman Kestrel 4500 pocket weather meters deployed near the noise monitoring sites. The weather meters

were set up to record wind speed, wind direction, temperature, barometric pressure, and relative humidity data

every two minutes. Data from the weather meters were used to screen the collected noise data based on the

weather condition requirements outlined in Directive 038. In addition, direct observations and field notes

including information regarding precipitation, cloud cover, wind direction, and audible noise sources were

prepared by members of the survey team and used in the data analysis.

The SLM microphone was deployed at a height of approximately 1.5 m above ground and at a minimum

distance of 15 m from the nearby residence to minimize potential impact of reflections on the measured noise

level. At the monitoring locations where a weather meter was deployed, it was set at the same height and

approximately 10 m away from the SLM. A separation of 10 m was small enough to provide consistent weather

conditions at the two locations, but large enough so that the weather meter’s spinning wind sensor would not be

audible at the SLM.

2.3 Data Analysis Approach Data recorded at each of the four monitoring sites were downloaded to a computer for analysis with the Brüel

and Kjær BZ5503 software program. In keeping with the requirements of Directive 038, the data were analyzed

in the context of both broadband noise and low frequency noise (LFN).

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2.3.1 Broadband Noise Analysis Approach

Directive 038 requires noise data be collected under appropriate weather conditions including the absence of

precipitation, no snow, water, or ice ground cover, and wind speeds below specific thresholds. The survey was

conducted during the summer and therefore the ground surface was not covered by either snow or ice. Following

the guidance of Directive 038, a maximum wind speed of 15 km/h (4.17 m/s) was used as the acceptable limit for

further analysis. Data collected when wind speed was less than 15 km/h was considered valid, while data

collected when wind speed was greater than 15 km/h was not. The 15 km/h limit allowed for the removal of

periods of high wind resulting in potential increased noise levels due to wind induced noise.

Furthermore, any noise data containing recordings of anomalous or abnormal noise sources not representative

of the existing acoustical environment was removed as invalid. Anomalous or abnormal noise sources identified

and subsequently removed included:

Localized technician activities;

People and dogs near the monitoring site;

Idling truck engines; and

Noise generating equipment, such as dirt bikes, trucks, and gardening tools, very close to the monitoring site.

During the analysis of the data, specific anomalous noise events were identified mainly by listening to the sound

recordings. Other indicators used to identify sources of noise were time of day and field observations. Hourly

noise levels (Leq,1hr) were calculated for each hour of monitoring based on the valid one-minute data. The valid

hourly data was used to calculate daytime equivalent energy noise levels (Leq,day) and nighttime equivalent

energy noise levels (Leq,night) for each location – daytime being defined as the time period between 7:00 am and

10:00 pm, and nighttime as the time period between 10:00 pm and 7:00 am, in accordance with Directive 038

(Alberta Energy and Utilities Board, 2007).

A noise monitoring survey is considered to be acceptable under Directive 038 if there are a minimum of 180 valid

minutes during the daytime period and 180 valid minutes during the nighttime period.

2.3.2 Low Frequency Noise Analysis Approach

At each monitoring site, the presence or absence of an LFN issue was assessed using the 1/3 octave band

noise levels corresponding to all the valid one-minute data samples. The 1/3 octave band spectra corresponding

to each valid minute were energy averaged to obtain a 1/3 octave band spectrum for the daytime period and a

1/3 octave band spectrum for the nighttime period.

Directive 038 specifies two criteria that must be used to identify a LFN issue:

Comparison of the dBA and dBC levels; and

Presence of a distinct tonal component below 250 Hz.

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To obtain dBA and dBC levels, A-weights and C-weights were separately applied to the daytime and nighttime

1/3 octave band spectra. The dBA results were then subtracted from the dBC results for comparison to the LFN

criteria outlined in Directive 038. In accordance with the Directive 038 tone criteria, the daytime and nighttime 1/3

octave band spectra were used to check for the presence of a tone below 250 Hz.

3.0 RESULTS This section presents the results obtained during baseline noise monitoring at receptor sites associated with the

Project.

3.1 Monitoring Site R1 This section presents the results obtained for monitoring site R1.

3.1.1 Broadband Noise

The monitoring site R1 was located 440 m south of the Project boundary, approximately 75 m south of River

Road. The ground surface within the area surrounding the SLM was covered by grass.

The noise level at the monitoring site R1 was predominantly influenced by vehicle traffic on nearby River Road.

In addition, the noise level was intermittently affected by airplane traffic.

Invalid noise events removed from the monitored data included technician activities, trucks near the SLM

microphone, and a dog barking near the SLM microphone. The sound monitoring equipment deployed at the

monitoring site R1 is shown in Photo 1.

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Photo 1: Sound Level Meter Deployed at the Monitoring Site R1

The individual Leq,1min recorded at the monitoring site R1 are shown graphically in Figure 2. The invalid samples

removed from the calculation of Leq,day and Leq,night are indicated. The weather data recorded during the noise

measurements (wind speed, wind direction, temperature and humidity) are presented in Appendix B.

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Figure 2: One-minute Noise Data Recorded at Monitoring Site R1

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The Leq,1hr, Leq,day and Leq,night at the monitoring site R1 are presented in Table 2. A count of the one-minute noise

data recorded at the monitoring site R1, including a breakdown for the daytime and nighttime periods, is

presented in Table 2. There are more than 180 valid minutes during both the daytime and nighttime periods at

the monitoring site R1. Therefore, the monitoring at the R1 would be considered acceptable according to

Directive 038 criteria.

Table 2: Filtered Hourly Noise Levels at Monitoring Site R1

Date Start Hour Leq, 1hr [dBA] Number of Valid Minutes

02/01/16 11:00 AM 60 32

02/01/16 12:00 PM 59 59

02/01/16 1:00 PM 59 59

02/01/16 2:00 PM 58 60

02/01/16 3:00 PM 58 60

02/01/16 4:00 PM 58 60

02/01/16 5:00 PM 58 59

02/01/16 6:00 PM 58 58

02/01/16 7:00 PM 56 60

02/01/16 8:00 PM 56 60

02/01/16 9:00 PM 54 60

02/01/16 10:00 PM 56 60

02/01/16 11:00 PM 55 60

02/02/16 12:00 AM 52 60

02/02/16 1:00 AM 51 60

02/02/16 2:00 AM 48 60

02/02/16 3:00 AM 48 60

02/02/16 4:00 AM 52 60

02/02/16 5:00 AM 59 60

02/02/16 6:00 AM 62 60

02/02/16 7:00 AM 62 58

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02/02/16 8:00 AM 62 60

02/02/16 9:00 AM 61 60

02/02/16 10:00 AM 60 60

02/02/16 11:00 AM 60 35

Leq,day [dBA] 7 am to 10 pm 59 900

Leq,night [dBA] 10 pm to 7 am 56 540

3.1.2 Low Frequency Noise

The results of the LFN analysis conducted using the 1/3 octave band spectra corresponding to valid one-minute

noise samples recorded at the monitoring site R1 are presented in Table 3.

Table 3: Table 3: Low Frequency Analysis for the Monitoring Site R1

Period dBA dBC Difference Number of Tones

Below 250 Hz

LFN

Issue

Daytime (7:00 am to 10:00 pm) 59 70 11 0 no

Nighttime (10:00 pm to 7:00 am) 56 66 10 0 no

The difference between dBA and dBC is less than 20 dB during both the daytime and nighttime and there are no

tones present below 250 Hz during the daytime and nighttime (Table 3). Therefore, there are no LFN issues

during the daytime or nighttime periods at the monitoring site R1.



The monitoring site R2 was located at the animal shelter 150 m southeast of the Project boundary, across

Tilbury Road from the Project site. The ground near the SLM was covered by dirt, grass, and leaves.

The noise level at the monitoring site R2 was predominantly influenced by noise resulting from frequent truck

traffic on Tilbury Road, construction at the Fortis site next door to the Project site, and by barking dogs living at

the shelter.

Invalid noise events removed from the monitored data included technician activities and dogs very close to the

microphone. The sound monitoring equipment deployed at monitoring site R2 is shown in Photo 2.

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removed from the calculation of Leq,day and Leq,night are indicated.

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The Leq,1hr, Leq,day and Leq,night at monitoring site R2 are presented in Table 4. A count of the one-minute noise data

recorded at the monitoring site R2, including a breakdown for the daytime and nighttime periods, is presented in

Table 4. There are more than 180 valid minutes during both the daytime and nighttime periods at the monitoring

site R2. Therefore, the monitoring at the R2 would be considered acceptable according to Directive 038 criteria.



10/01/15 2:00 PM 51 4

10/01/15 3:00 PM 52 60

10/01/15 4:00 PM 52 59

10/01/15 5:00 PM 50 60

10/01/15 6:00 PM 52 60

10/01/15 7:00 PM 55 59

10/01/15 8:00 PM 51 60

10/01/15 9:00 PM 57 60

10/01/15 10:00 PM 52 60

10/01/15 11:00 PM 53 60

10/02/15 12:00 AM 51 60

10/02/15 1:00 AM 49 60

10/02/15 2:00 AM 51 60

10/02/15 3:00 AM 48 60

10/02/15 4:00 AM 47 60

10/02/15 5:00 AM 48 60

10/02/15 6:00 AM 53 60

10/02/15 7:00 AM 55 60

10/02/15 8:00 AM 54 60

10/02/15 9:00 AM 55 60

10/02/15 10:00 AM 57 60

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10/02/15 11:00 AM 55 60

10/02/15 12:00 PM 54 60

10/02/15 1:00 PM 53 60

10/02/15 2:00 PM 54 41






Table 5: Low Frequency Analysis for the Monitoring Site R2


Below 250 Hz

LFN

Issue








The monitoring site R3 was located 300 m north of the Project boundary. The ground near the SLM was covered

by a combination of grass and gravel.

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The noise level at the monitoring site R3 was predominantly influenced by heavy equipment operating at the

nearby sand and gravel pit, as well as intermittent noise from shipping and airplane traffic. This area was also

heavily impacted by dirt bikes between 4:30 PM and 6:00 PM on October 1, 2015.

Invalid noise events removed from the monitored data included technician activities and dogs, dirt bikes, and

idling engines of trucks near the SLM microphone. The sound monitoring equipment deployed at monitoring site

R3 is shown in Photo 3.



removed from the calculation of Leq,day and Leq,night are indicated.

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presented in Table 6. There are more than 180 valid minutes during both the daytime and nighttime periods at the

monitoring site R3. Therefore, the monitoring at the R3 would be considered acceptable according to

Directive 038 criteria



10/01/15 3:00 PM 50 3

10/01/15 4:00 PM 55 58

10/01/15 5:00 PM 57 59

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10/01/15 6:00 PM 52 60

10/01/15 7:00 PM 51 60

10/01/15 8:00 PM 54 60

10/01/15 9:00 PM 52 60

10/01/15 10:00 PM 52 60

10/01/15 11:00 PM 52 60

10/02/15 12:00 AM 51 60

10/02/15 1:00 AM 50 60

10/02/15 2:00 AM 48 60

10/02/15 3:00 AM 50 60

10/02/15 4:00 AM 53 60

10/02/15 5:00 AM 48 60

10/02/15 6:00 AM 51 60

10/02/15 7:00 AM 53 60

10/02/15 8:00 AM 51 60

10/02/15 9:00 AM 54 60

10/02/15 10:00 AM 56 60

10/02/15 11:00 AM 52 60

10/02/15 12:00 PM 53 58

10/02/15 1:00 PM 48 60

10/02/15 2:00 PM 50 60

10/02/15 3:00 PM 53 59



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Below 250 Hz

LFN

Issue








The monitoring site R4 was 1200 m southwest of the Project boundary and within 400 m of the proposed shipping

route. The ground surface within the area surrounding the SLM was covered by grass.

Noise monitoring at this location occurred over a one week period as requested by the residents. The noise level

at the monitoring site R4 was predominantly influenced by intermittent noise from shipping and airplane traffic.

Invalid noise events removed from the monitored data included technician activities, people and dogs close to the

microphone, and gardening tools operating near the equipment. The sound monitoring equipment deployed at

monitoring site R4 is shown in Photo 4.

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removed from the calculation of Leq,day and Leq,night are indicated. The weather data recorded during the noise

measurements (wind speed, wind direction, temperature and humidity) are presented in Appendix B.

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presented in Table 8. There are more than 180 valid minutes during both the daytime and nighttime periods at the

monitoring site R4. Therefore, the monitoring at the R4 would be considered acceptable according to

Directive 038 criteria.



09/28/15 10:00 AM 43 14

09/28/15 11:00 AM 43 60

09/28/15 12:00 PM 42 60

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09/28/15 1:00 PM 48 60

09/28/15 2:00 PM 46 59

09/28/15 3:00 PM 48 60

09/28/15 4:00 PM 46 60

09/28/15 5:00 PM 46 60

09/28/15 6:00 PM 45 60

09/28/15 7:00 PM 47 60

09/28/15 8:00 PM 48 60

09/28/15 9:00 PM 54 60

09/28/15 10:00 PM 49 60

09/28/15 11:00 PM 50 60

09/29/15 12:00 AM 49 60

09/29/15 1:00 AM 48 60

09/29/15 2:00 AM 44 60

09/29/15 3:00 AM 46 59

09/29/15 4:00 AM 45 60

09/29/15 5:00 AM 50 60

09/29/15 6:00 AM 53 60

09/29/15 7:00 AM 57 60

09/29/15 8:00 AM 52 60

09/29/15 9:00 AM 49 60

09/29/15 10:00 AM 43 60

09/29/15 11:00 AM 44 59

09/29/15 12:00 PM 46 60

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09/29/15 1:00 PM 47 60

09/29/15 2:00 PM 50 60

09/29/15 3:00 PM 48 60

09/29/15 4:00 PM 51 59

09/29/15 5:00 PM 53 58

09/29/15 6:00 PM 47 60

09/29/15 7:00 PM 47 59

09/29/15 8:00 PM 49 60

09/29/15 9:00 PM 50 60

09/29/15 10:00 PM 47 60

09/29/15 11:00 PM 49 60

09/30/15 12:00 AM 48 60

09/30/15 1:00 AM 49 60

09/30/15 2:00 AM 45 60

09/30/15 3:00 AM 56 60

09/30/15 4:00 AM 55 60

09/30/15 5:00 AM 51 60

09/30/15 6:00 AM 52 60

09/30/15 7:00 AM 55 60

09/30/15 8:00 AM 53 60

09/30/15 9:00 AM 51 60

09/30/15 10:00 AM 52 60

09/30/15 11:00 AM 49 60

09/30/15 12:00 PM 46 60

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09/30/15 1:00 PM 48 60

09/30/15 2:00 PM 48 60

09/30/15 3:00 PM 48 60

09/30/15 4:00 PM 49 60

09/30/15 5:00 PM 49 60

09/30/15 6:00 PM 47 60

09/30/15 7:00 PM 50 60

09/30/15 8:00 PM 47 60

09/30/15 9:00 PM 54 60

09/30/15 10:00 PM 52 60

09/30/15 11:00 PM 50 60

10/01/15 12:00 AM 49 60

10/01/15 1:00 AM 46 60

10/01/15 2:00 AM 49 31

10/01/15 3:00 AM 46 33

10/01/15 4:00 AM 46 60

10/01/15 5:00 AM 45 60

10/01/15 6:00 AM 51 60

10/01/15 7:00 AM 56 60

10/01/15 8:00 AM 55 60

10/01/15 9:00 AM 50 60

10/01/15 10:00 AM 58 60

10/01/15 11:00 AM 46 60

10/01/15 12:00 PM 44 60

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10/01/15 1:00 PM 50 60

10/01/15 2:00 PM 48 60

10/01/15 3:00 PM 49 55

10/01/15 4:00 PM 49 60

10/01/15 5:00 PM 53 60

10/01/15 6:00 PM 51 60

10/01/15 7:00 PM 50 60

10/01/15 8:00 PM 50 60

10/01/15 9:00 PM 49 60

10/01/15 10:00 PM 51 60

10/01/15 11:00 PM 51 60

10/02/15 12:00 AM 48 60

10/02/15 1:00 AM 47 60

10/02/15 2:00 AM 47 60

10/02/15 3:00 AM 50 60

10/02/15 4:00 AM 56 60

10/02/15 5:00 AM 47 60

10/02/15 6:00 AM 50 60

10/02/15 7:00 AM 51 60

10/02/15 8:00 AM 47 60

10/02/15 9:00 AM 51 49

10/02/15 10:00 AM 53 60

10/02/15 11:00 AM 49 60

10/02/15 12:00 PM 50 49

13 August 2018 1314220049-136-R-Rev0

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10/02/15 1:00 PM 45 60

10/02/15 2:00 PM 46 60

10/02/15 3:00 PM 54 57

10/02/15 4:00 PM 48 60

10/02/15 5:00 PM 48 60

10/02/15 6:00 PM 53 60

10/02/15 7:00 PM 50 60

10/02/15 8:00 PM 48 60

10/02/15 9:00 PM 50 60

10/02/15 10:00 PM 44 58

10/02/15 11:00 PM 47 60

10/03/15 12:00 AM 42 60

10/03/15 1:00 AM 45 60

10/03/15 2:00 AM 43 60

10/03/15 3:00 AM 38 60

10/03/15 4:00 AM 40 60

10/03/15 5:00 AM 38 60

10/03/15 6:00 AM 45 60

10/03/15 7:00 AM 55 60

10/03/15 8:00 AM 46 60

10/03/15 9:00 AM 44 60

10/03/15 10:00 AM 45 60

10/03/15 11:00 AM 50 60

10/03/15 12:00 PM 45 60

13 August 2018 1314220049-136-R-Rev0

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10/03/15 1:00 PM 46 60

10/03/15 2:00 PM 46 60

10/03/15 3:00 PM 47 60

10/03/15 4:00 PM 48 60

10/03/15 5:00 PM 43 60

10/03/15 6:00 PM 54 60

10/03/15 7:00 PM 46 58

10/03/15 8:00 PM 45 60

10/03/15 9:00 PM 46 60

10/03/15 10:00 PM 49 60

10/03/15 11:00 PM 49 60

10/04/15 12:00 AM 51 60

10/04/15 1:00 AM 43 60

10/04/15 2:00 AM 42 60

10/04/15 3:00 AM 44 59

10/04/15 4:00 AM 40 60

10/04/15 5:00 AM 56 60

10/04/15 6:00 AM 46 60

10/04/15 7:00 AM 51 60

10/04/15 8:00 AM 49 60

10/04/15 9:00 AM 46 60

10/04/15 10:00 AM 43 60

10/04/15 11:00 AM 42 60

10/04/15 12:00 PM 44 60

13 August 2018 1314220049-136-R-Rev0

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10/04/15 1:00 PM 45 60

10/04/15 2:00 PM 50 59

10/04/15 3:00 PM 46 60

10/04/15 4:00 PM 44 59

10/04/15 5:00 PM 42 60

10/04/15 6:00 PM 50 60

10/04/15 7:00 PM 45 60

10/04/15 8:00 PM 48 60

10/04/15 9:00 PM 46 60

10/04/15 10:00 PM 49 60

10/04/15 11:00 PM 49 60

10/05/15 12:00 AM 48 60

10/05/15 1:00 AM 46 60

10/05/15 2:00 AM 43 60

10/05/15 3:00 AM 41 60

10/05/15 4:00 AM 42 60

10/05/15 5:00 AM 56 60

10/05/15 6:00 AM 52 60

10/05/15 7:00 AM 53 60

10/05/15 8:00 AM 52 60

10/05/15 9:00 AM 48 60

10/05/15 10:00 AM 49 47

Leq,day [dBA] 7 am to 10 pm 50 6,261

Leq,night [dBA] 10 pm to 7 am 50 3,720

13 August 2018 1314220049-136-R-Rev0

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Below 250 Hz

LFN

Issue



The difference between dBA and dBC is less than 20 dB during both the daytime and nighttime (Table 9).

Therefore, there are no LFN issues during the daytime or nighttime periods at the monitoring site R4.

4.0 SUMMARY The results presented in Section 3 of this report indicate that the noise levels within the noise LAA and RAA are

already elevated due to presence of industrial and transportation noise sources. Based on the results presented

in Table 10, daytime noise levels measured at four receptors varied between 50 dBA and 59 dBA (9 dB), whereas

nighttime noise levels varied between 49 dBA and 56 dBA (7 dB). The difference between daytime and nighttime

noise levels can be explained by decreased road traffic during the nighttime period, which is evident at all

receptors but especially at R1 and R2. In addition, the maximum difference of 9 dB (daytime) and 7 dB (nighttime)

was identified between receptors R1 and R4. This difference can be attributed to lesser influence of traffic noise at

receptor R4 when compared to receptor R1.

The results of the LFN analysis indicate that at all monitoring sites no LFN issues were identified based on criteria

described in Directive 038.

Table 10: Daytime and Nighttime Noise Levels at WesPac Monitoring Sites

Noise Monitoring Site Leq,day [dBA] Leq, night [dBA]

R1 59 56

R2 54 51

R3 54 51

R4 50 50

13 August 2018 1314220049-136-R-Rev0

17

5.0 CLOSURE We trust that this baseline report is sufficient to characterize existing baseline conditions for noise in the LAA and

RAA. For any queries on the contents of this report, please do not hesitate to contact the undersigned.

Golder Associates Ltd.

Shira Daltrop, MASc Andrew Faszer, BSc, INCE, PEng

Acoustical Scientist Senior Acoustical Engineer

SD/AF/asd

Golder and the G logo are trademarks of Golder Associates Corporation

o:\final\2013\1422\13-1422-0049\1314220049-136-r-rev0\1314220049-136-r-rev0-tilbury noise baseline 13aug_18.docx

13 August 2018 1314220049-136-R-Rev0

18

6.0 REFERENCES Alberta Energy and Utilities Board. (2007, February). Directive 038: Noise Control.

British Columbia Oil and Gas Commission. (2009, March). British Columbia Noise Control Best Practices

Guideline.

13 August 2018 1314220049-136-R-Rev0

APPENDIX A

Calibration Data

APPENDIX A Calibration Record

1314220049-136-R-Rev013 August 2018

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This Appendix presents the calibration results for the sound level meters used at the monitoring sites for the

baseline noise measurements. The Brüel and Kjær Type 4231 calibrator emits a 1,000 Hz tone at a sound

pressure level of 94 dB. For a calibration to be valid, the sound level meter must read 94 ± 1 dB.

At each monitoring site, an initial calibration is performed before the start of the sound level measurements and a

final calibration is performed after the sound level measurements are finished.

1.0 MONITORING SITE R1 Each of the sound level meter initial and final calibration measurements was at 94 ± 1 dB, as indicated on

Figure A-1 and Figure A-2, respectively, at the noise monitoring site R1.

Figure A-1: Monitoring Site R1: Initial Calibration

93

93.5

94

94.5

95

95.5

[dB]

WesPacR1001

11:22:40 AM2/1/2016

11:23:00 AM 11:23:20 AM 11:23:40 AM 11:24:00 AM 11:24:20 AM

Sound


1314220049-136-R-Rev013 August 2018

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Figure A-2: Monitoring Site R1: Final Calibration




93

93.5

94

94.5

95

95.5[dB]

WesPacR1004

11:37:10 AM2/2/2016

11:37:20 AM 11:37:30 AM 11:37:40 AM 11:37:50 AM 11:38:00 AM

Sound

93

93.5

94

94.5

95

95.5

[dB]

WesPacR2001

2:42:10 PM10/1/2015

2:42:20 PM 2:42:30 PM 2:42:40 PM 2:42:50 PM 2:43:00 PM

Sound


1314220049-136-R-Rev013 August 2018

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93

93.5

94

94.5

95

95.5

[dB]

WesPacR2004

2:49:40 PM10/2/2015

2:49:50 PM 2:50:00 PM 2:50:10 PM 2:50:20 PM 2:50:30 PM

Sound

93

93.5

94

94.5

95

95.5

[dB]

WesPacR3001

3:54:10 PM10/1/2015

3:54:20 PM 3:54:30 PM 3:54:40 PM 3:54:50 PM 3:55:00 PM

Sound


1314220049-136-R-Rev013 August 2018

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93

93.5

94

94.5

95

95.5

[dB]

WesPacR3004

4:05:30 PM10/2/2015

4:05:40 PM 4:05:50 PM 4:06:00 PM 4:06:10 PM 4:06:20 PM

Sound

93

93.5

94

94.5

95

95.5

[dB]

WesPacR4001

10:32:24 AM9/28/2015

10:32:36 AM 10:32:48 AM 10:33:00 AM 10:33:12 AM 10:33:24 AM 10:33:36 AM

Sound


1314220049-136-R-Rev013 August 2018

5


93

93.5

94

94.5

95

95.5

[dB]

WesPacR4006

3:24:45 PM10/1/2015

3:24:50 PM 3:24:55 PM 3:25:00 PM 3:25:05 PM 3:25:10 PM 3:25:15 PM

Sound

13 August 2018 1314220049-136-R-Rev0

APPENDIX B

Weather Data


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Appendix B provides information regarding weather conditions observed during the noise baseline measurements

for the Project.

1.0 WEATHER DATA

1.1 Monitoring Site R1

Figure B-1: Wind Speed Recorded at Monitoring Site R1. Note the wind direction sensor malfunctioned during the monitoring period and therefore reliable wind direction was not measured.


1314220049-136-R-Rev013 August 2018

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Figure B-2: Temperature and Humidity Measured at Monitoring Site R1


1314220049-136-R-Rev013 August 2018

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1.2 Monitoring Site R4

Figure B-3: Wind Speed and Direction Recorded at Monitoring Site R4


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Figure B-4: Temperature and Humidity Measured at Monitoring Site R4

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