1 introduction - boral · location r2 is situated adjacent to 496 wingham road, taree, nsw,...

PO Box 262Newcastle NSW 2300ABN: 36 602 225 132

P: +61 2 4920 1833www.mulleracoustic.com

[email protected]

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24 October 2017

MAC160343_Boral Kolodong

Attention: Ronnie LawtonEnvironmental Advisor – NSW/ACTBoral OHS Functional GroupGap RoadAlstonville NSW 2477

Dear Ronnie,

Noise Assessment Summary – Boral Asphalt Plant, Kolodong, NSW.

1 Introduction

Muller Acoustic Consulting Pty Ltd (MAC) has been commissioned by Boral (NSW) Pty Limited to

complete a Noise Monitoring Assessment (NMA) for the Taree Asphalt Plant, Kolodong NSW (the

“Plant”). The NMA has been completed to quantify operational noise emissions of the plant within the

surrounding community.

The assessment has been conducted in accordance with the following documents:

NSW Environment Protection Authority (EPA) 2000, Industrial Noise Policy (INP); and

Standards Australia AS 1055.1:1997 - Acoustics - Description and measurement ofenvironmental noise - General Procedures;

A glossary of terms, definitions and abbreviations used in this report is provided in Appendix A.

Page | 2

2 Site Details

The plant is located on Arkwright Crescent in the Kolodong Industrial Area, Kolodong NSW and is

surrounded by a variety of both light and heavy industrial sites. Other industrial sources operating along

Arkwright Crescent include the Greater Taree Council Depot, several smash repair facilities, a haulage

company and a kitchen joinery. Additionally, the Jamestrong Cannery (the “Cannery”), located on

Hargreaves Drive operates 24 hours a day and is a key noise source of the area. The Cannery is

approximately 400m west of the Boral site and 200m away from Kolodong Road catchment area. Outside

the industrial area, the locality is predominantly urban/residential with traffic noise from Wingham Road

dominant, and local wildlife noise also present.

The plant is used to batch asphalt for use in construction sites within the Greater Taree area. The process

uses raw materials stored onsite and utilises an asphalt burner and bitumen kettles to produce asphalt

which is exported from site via road trucks.

Three representative residential catchment areas were selected for this assessment. Location R1 is

situated at 412 Kolodong Road, Taree, NSW, approximately 500m north-west of the plant. R1 is

representative of the Kolodong Road catchment area.

Location R2 is situated adjacent to 496 Wingham Road, Taree, NSW, approximately 300m north of the

plant and is representative of the Wingham Road catchment area.

Location R3 is situated near the nature reserve at the rear of 53 Potoroo Drive, Taree NSW. This location

is approximately 375m east of the site and representative of all receivers in the Potoroo catchment area.

The plant, receivers/catchment areas and other notable industrial sources are presented in Figure 1.

JAMESTRONG CANNERY

BLACKTOWN ROAD

TAREE COUNCIL DEPOT

SMASH REPAIRS

KITCHEN JOINERY

FIGURE 1

LOCALITY PLANREF: MAC160343

100m0

N

*Imagery Source : nearmap

KEY

RECEIVER AND MONITORING LOCATIONSR1

INDUSTRIAL SITES

PROJECT SITE

HAULAGE FIRM

R2WINGHAM ROAD

R1

R3

HARGREA

VES

DRIVE

ARKWRIGHT CRESCENT

Page | 4

3 Background Noise Environment

3.1 Unattended Noise Monitoring

To quantify the existing background noise environment of the area during the day, evening and night-

time periods, unattended noise logging was conducted at each of the receptors (R1 – R3).

The measurements were carried out from Monday 5 December 2016 to Monday 12 December 2016.

Observations on-site identified that the surrounding locality was typical of an urban/residential

environment, with noise from the Kolodong Industrial area sources and traffic from Wingham Road being

dominant sources. Noise from local wildlife and birds, and wind rustling in trees was also audible during

the surveys. The results of long-term unattended noise monitoring are provided in Table 1 with logging

charts presented in Appendix B.

Table 1 Background Noise Monitoring Summary

Monitoring Location Period1

Measured Background

Noise Level (LA90),

RBL, dBA

Measured LAeq,

dBA

R1

(412 Kolodong Road)

Day 39 56

Evening 43 52

Night 41 46

R2

(496 Wingham Road)

Day 47 67

Evening 40 63

Night 36 58

R3

(53 Potoroo Drive)

Day 43 58

Evening 41 54

Night 39 50

Note 1: Day Period is 7am to 6pm, Evening Period is 6pm to 10pm, Night Period is 10pm to 7am.

3.2 Attended Noise Monitoring

Attended noise measurements were conducted at each of the receptor locations when the plant was not

operational. The results of the attended noise measurements are presented in Table 2 to Table 4.

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Table 2 Operator-Attended Background Noise Survey Results – R1 (412 Kolodong Road)

Time (hrs)Primary Noise Descriptor (dBA re 20 µPa)

Meteorology Description and SPL, dBALA10 LAeq

13:55

(Day)56 49

Wind: 4.2m/s

Dir: South East

Rain: Nil

Birds & Insects 41 - 49

Jamestrong Cannery 40 - 42

Children in School 40 - 43

20:02

(Evening)56 55

Wind: 2.0m/s

Dir: South East

Rain: Nil

Birds & insects 50 - 55


Distant Traffic 30 - 40

22:01

(Night)46 44

Wind: 1.4m/s

Dir: South

Rain: Nil



Distant Traffic 30 - 40


Table 3 Operator-Attended Background Noise Survey Results – R2 (496 Wingham Road)



14:33

(Day)68 66

Wind: 3.8m/s

Dir: South

Rain: Nil

Passing Traffic 61 - 74

Insects 64 - 66

20:24

(Evening)67 66

Wind: 2.2m/s

Dir: South East

Rain: Nil


Insects 59 - 65

Industrial Hum 60- 62

22:22

(Night)61 59

Wind: 1.5m/s

Dir: South

Rain: Nil


Insects 44 - 46


Table 4 Operator-Attended Background Noise Survey Results – R3 (53 Potoroo Drive)



15:10

(Day)53 51

Wind: 3.5m/s

Dir: South East

Rain: Nil

Traffic 44 - 50


Industrial Noise 42 - 49

21:16

(Evening)49 48

Wind: 2.2m/s

Dir: South East

Rain: Nil

Traffic 47 - 56



22:42

(Night)49 47

Wind: 1.4m/s

Dir: South

Rain: Nil

Traffic 45 - 50




Page | 6

4 Noise Criteria and Compliance Assessment

It is noted that the existing criteria for the Plant was established using currently outdated noise policy

(the Environmental Noise Control Manual) and set criteria based on the LA10 metric. To establish criteria

that are in line with contemporary policy (ie LAeq under the Industrial Noise Policy (INP)), analysis of

measured ambient noise levels from unattended and attended noise monitoring data has been

undertaken. To determine compliance with criteria, noise monitoring was completed at all three

monitoring locations during the early hours of the morning (6.30am) on 6 December 2016. Time trace

charts for each of the attended measurements are presented in Appendix C.

Both historic criteria and those derived under the INP are presented in Table 5 along with the Plant’s

compliance using the sites contribution determined from noise monitoring. It is noted that both criteria

are identical as they are based on the LA90 +5dB. It is noted that generally, an LA10 noise metric is

between 1 to 3dB(A) higher than the LAeq metric. Hence, using the LAeq metric to determine compliance

should be considered as overly conservative.

Notwithstanding, based on the attended noise monitoring survey when the Plant was operational, the

Plant was found to satisfy both criteria established via the Conditions of Consent or INP.

Table 5 Compliance Summary

Monitoring Location Period1

Criteria as per

Conditions of

Consent

LA10(15min)

INP Criteria

LAeq(15min)

PSNL dBA

Boral

Contribution,

LAeq, dBA

Compliant

R1

(412 Kolodong Road)

Day 44 44 39

Evening 44 44 39

Night 44 44 39

R2

(496 Wingham Road)

Day 52 52 N/A

Evening 45 45 N/A

Night 41 41 N/A

R3

(53 Potoroo Drive)

Day 48 48 N/A

Evening 46 46 N/A

Night 44 44 N/A Note 1: Day Period is 7am to 6pm, Evening Period is 6pm to 10pm, Night Period is 10pm to 7am.

Page | 7

5 Discussion

In summary, monitoring identified the following with respect to noise emissions from the Plant site:

The site was monitored during the late night/early morning period at a time when the operations

onsite would be considered worst case scenario. The noise emanating from the site, whilst in

asphalt production is also a predominantly steady state and thus the monitored results at each

of the receivers would be representative for all periods, day, evening and night as the general

emissions do not fluctuate significantly.

Analysis of the unattended and attended noise monitoring data demonstrates that the Boral

plant satisfies Condition 33 of the Conditions of Consent.

The plant is considered to satisfy criteria derived in accordance with the INP for all assessment

periods during generally calm meteorological conditions.

Measurements conducted at R1 (Kolodong Road) were dominated by the noise emanating from

the James Strong Cannery and the noise from Boral was a low frequency hum intermittently

audible.

6 Recommendations and Conclusion

Results demonstrate the Plant satisfies relevant noise criteria, and that ambient levels are predominantly

influenced by adjoining industrial sites, some additional noise controls could be implemented at the Plant

site to further reduce emissions.

The following items could be considered to reduce audibility of the Plant at surrounding receivers:

Investigate replacing or upgrading the burner; and/or

Implementation of physical noise barriers around the burner (where feasible); and/or

Reorientate the direction of the burner so that its outlet is facing away from residential receivers.

We trust this letter is sufficient for your requirements at this time, although if you have any further

questions or wish to discuss in more detail please contact our office.

Yours sincerely

Oliver MullerPrincipal Acoustic ScientistBSc(REM & HGeog)|[email protected]: Appendix A – Glossary of Terms

Appendix A – Glossary of Terms

Table A1 provides a number of technical terms have been used in this report.

Table 1A Glossary of TermsTerm Description

1/3 Octave Single octave bands divided into three parts

Octave A division of the frequency range into bands, the upper frequency limit of each band being twice

the lower frequency limit.

ABL Assessment Background Level (ABL) is defined in the INP as a single figure background level for

each assessment period (day, evening and night). It is the tenth percentile of the measured LA90

statistical noise levels.

Adverse Weather Weather effects that enhance noise (that is, wind and temperature inversions) that occur at a site

for a significant period of time (that is, wind occurring more than 30% of the time in any

assessment period in any season and/or temperature inversions occurring more than 30% of the

nights in winter).

Ambient Noise The noise associated with a given environment. Typically a composite of sounds from many

sources located both near and far where no particular sound is dominant.

A Weighting A standard weighting of the audible frequencies designed to reflect the response of the human

ear to noise.

dBA Noise is measured in units called decibels (dB). There are several scales for describing noise, the

most common being the ‘A-weighted’ scale. This attempts to closely approximate the frequency

response of the human ear.

dB(Z), dB(L) Decibels Linear or decibels Z-weighted.

Hertz (Hz) The measure of frequency of sound wave oscillations per second - 1 oscillation per second

equals 1 hertz.

LA10 A noise level which is exceeded 10 % of the time. It is approximately equivalent to the average of

maximum noise levels.

LA90 Commonly referred to as the background noise, this is the level exceeded 90 % of the time.

LAeq The summation of noise over a selected period of time. It is the energy average noise from a

source, and is the equivalent continuous sound pressure level over a given period.

LAmax The maximum root mean squared (rms) sound pressure level received at the microphone during a

measuring interval.

RBL The Rating Background Level (RBL) is an overall single figure background level representing

each assessment period over the whole monitoring period. The RBL is used to determine the

intrusiveness criteria for noise assessment purposes and is the median of the ABL’s.

Sound power level (LW) This is a measure of the total power radiated by a source. The sound power of a source is a

fundamental location of the source and is independent of the surrounding environment. Or a

measure of the energy emitted from a source as sound and is given by :

= 10.log10 (W/Wo)

Where : W is the sound power in watts and Wo is the sound reference power at 10-12 watts.

Table A2 provides a list of common noise sources and their typical sound level.

Table A2 Common Noise Sources and Their Typical Sound Pressure Levels (SPL), dBASource Typical Sound Level

Threshold of pain 140

Jet engine 130

Hydraulic hammer 120

Chainsaw 110

Industrial workshop 100

Lawn-mower (operator position) 90

Heavy traffic (footpath) 80

Elevated speech 70

Typical conversation 60

Ambient suburban environment 40

Ambient rural environment 30

Bedroom (night with windows closed) 20

Threshold of hearing 0

Figure A1 – Human Perception of Sound

Appendix B – Logging Charts

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Noise

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Background Noise Levels

412 Kolodong Road - Monday 5 December 2016

Rain >= 0.5mm Lmax L90 Leq Mean Wind Speed m/s

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412 Kolodong Road - Tuesday 6 December 2016


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412 Kolodong Road - Wednesday 7 December 2016


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412 Kolodong Road - Thursday 8 December 2016


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412 Kolodong Road - Friday 9 December 2016


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412 Kolodong Road - Saturday 10 December 2016


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412 Kolodong Road - Sunday 11 December 2016


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412 Kolodong Road - Monday 12 December 2016


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496 Wingham Road - Monday 5 December 2016


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496 Wingham Road - Tuesday 6 December 2016


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496 Wingham Road - Wednesday 7 December 2016


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496 Wingham Road - Thursday 8 December 2016


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496 Wingham Road - Friday 9 December 2016


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496 Wingham Road - Saturday 10 December 2016


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496 Wingham Road - Sunday 11 December 2016


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496 Wingham Road - Monday 12 December 2016


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53 Potoroo Drive - Monday 5 December 2016


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53 Potoroo Drive - Tuesday 6 December 2016


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53 Potoroo Drive - Wednesday 7 December 2016


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53 Potoroo Drive - Thursday 8 December 2016


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53 Potoroo Drive - Friday 9 December 2016


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53 Potoroo Drive - Saturday 10 December 2016


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53 Potoroo Drive - Sunday 11 December 2016


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53 Potoroo Drive - Monday 12 December 2016


Appendix C – Time Trace Charts

Site: R1, 412 Kolodong Road - Boral Operation - Batching

6/12/16 6:30C

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35

45

55

65

75

85

95

00:00 01:00 02:00 03:00 04:00 05:00 06:00 07:00 08:00 09:00 10:00 11:00 12:00 13:00 14:00 15:00

dB

(A)

Time (min:sec)

LA1-Total LA10-Total L Aeq- Total LA90-Total 1.25 kHz Noise Filter 1 Second Leq

SourceContibution

44 (inclusive 5dBmodify factor)

44.4

Overall - Leq

dBA

Overall - L1 dBA

48.4

Overall - L10

dBA

45.4

Overall - L90

dBA

43.0

Site: R2, 496 Wingham Road - Boral Operation - Batching

6/12/16 6:57

Pas

sin

gC

ars

Extr

acto

rFa

nat

Join

ery

Pas

sin

gC

ars

Pas

sin

gC

ars

Extr

acto

rFa

nat

Join

ery

Inse

cts

and

Bir

ds

Pss

sin

gTr

affi

c

Pas

sin

gC

ars

Pas

sin

g4X

4

Pas

sin

gtr

affi

c

Pas

sin

gC

ars

Dis

tan

ttr

affi

ch

um

Tru

ckP

assi

ng

Pas

sin

gC

ars

Tru

ckP

assi

ng

Pas

sin

gC

ars

75.171.3

66.2

48.7

25

35

45

55

65

75

85

95

00:00 01:00 02:00 03:00 04:00 05:00 06:00 07:00 08:00 09:00 10:00 11:00 12:00 13:00 14:00 15:00

dB

(A)

Time (min:sec)


Source

Contibution

Nil

66.2

Overall - Leq

dBA

Overall - L1 dBA

75.1

Overall - L10

dBA

71.3

Site: R3, 53 Potoroo Drive - Boral Operation - Batching

6/12/16 7:25P

assi

ng

Traf

fic

No

ise

Tru

ckin

Ind

ust

rial

Are

a

Traf

fic

and

Ind

ust

rial

Site

Hu

m

Pas

sin

gTr

affi

cN

ois

e

Traf

fic

and

Ind

ust

rial

Site

Hu

m

Car

Exh

aust

Hu

m

Ban

gin

gat

Ho

use

s

Tru

cko

nW

ingh

amR

oad

Pas

sin

gU

te

Tru

ckin

Ind

ust

rial

Are

a

Traf

fic

No

ise

Fork

lift

inin

du

stri

alA

rea

Tru

ckin

ind

ust

rial

area

Air

bra

kes

on

Tru

ck

58.2

53.6

51.6

48.0

25

35

45

55

65

75

85

95

00:00 01:00 02:00 03:00 04:00 05:00 06:00 07:00 08:00 09:00 10:00 11:00 12:00 13:00 14:00 15:00

dB

(A)

Time (min:sec)


SourceContibution

51.6

Overall - Leq

dBA

Overall - L1 dBA

58.2

Overall - L10

dBA

53.6

Overall - L90

dBA

48.0

Nil

1 introduction - boral · location r2 is situated adjacent to 496 wingham road, taree, nsw,...

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