ABC Annual Environmental Noise Audit - EPA · 23 . Adelaide Brighton Cement -Birkenhead Mark Carlstrom . ABC Birkenhead -May 2012 Noise . ABC Annual Environmental Noise Audit . Document

23

Adelaide Brighton Cement - Birkenhead

Mark Carlstrom

ABC Birkenhead - May 2012 Noise

ABC Annual Environmental Noise Audit

Document No.: 508-12-0021-TRP-778549-0 24 May 2012

\11poo E"g;ooora & Sciom;,,, Ltd ~i'ACI 17-19 King William Street

Kent Town SA 5067 Phone: (+61 8) 8362 5445

Fax: (+61 8) 8362 0793

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delaide Brighton Cement - Birkenhead

BC Birkenhead - May 2012 Noise OB-12-0021-TRP-778549-0 Pa e 2of14

ABC Birkenhead - May 2012 Noise

ABC Annual Environmental Noise Audit

DOCUMENT NO: 508-12-0021-TRP-778549-0

PREPARED FOR:

REPORT CODE: TRP

PREPARED BY: Adelaide Brighton Cement - Birkenhead

PO Box 77 . Vipac Engineers & Scientists Ltd 17 19 King William Street, KENT TOWN SA 5067 Port Adelaide SA 5015

Contact: a Fax:

Mark Carlstrom 61 8 83000300 61883000431

ii Fax :

(08) 8362 5445 (08) 8362 0793

PREPARED BY: Project Engineer:

Andrew Leonard Date: 24 May 2012

REVIEWED BY: Reviewing Engineer: .............~.~~......

Ivailo Dimitrov Date: 24 May 2012

RELEASED BY: QA Representative:

Eileen Draper Date: 24 May 2012

REVISION HISTORY Revision No. Date Issued Reason/Comments

0 24 May 2012 Initial Issue

DISTRIBUTION Copy No. ___ Location

1 Vipac - Project/Client File

2 Copy - Vipac Melbourne Library

3 Original Adelaide Brighton Cement - Birkenhead

KEYWORDS: ABC Birkenhead, Environmental Noise

NOTE: This is a controlled document within the document control system. Ifrevised, it must be marked SUPERSEDED and returned to the Vipac QA Representative.

This document contains commercial, conceptual and engineering information which is proprietary to VIPAC Engineers & Scientists Ltd. We specifically state that inclusion of this information does not grant the Client any license to use the information without VIPAC's written permission. We further require that the information not be divulged to a third party without our written consent.

Ref: SOB-12-0021 Commercial-in-Confidence

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BC Birkenhead - May 2012 Noise 08-12-0021-TRP-778549-0 Pa e 3of14

EXECUTIVE SUMMARY Vipac Engineers were requested by Adelaide Brighton Cement (ABC) to perform an environmental noise survey at local residential locations near their Birkenhead plant. The measurements were conducted on the 161h April and 301h April 2012.

Summary and discussion

• EPA night-time criterion has been exceeded at 6 receiver locations (including all automatic noise logger data).

• EPA day-time criterion has been met at all receiver locations (including all automatic noise logger data)

• The amount exceeded at the 6 receiver locations is approximately 1-7 dB.

• The noise from the plant dominates the noise of the surrounding residential area, especially in low wind speed events, as well as in worst case wind direction events.

• Noise from the plant is generally broadband fan-type noise, with no specific noise source standing out from the 'hum' of the plant.

Recommendations

• Continue cleaning regime for airslide blowers.

• Conduct an investigation into general noise breakout from the plant. As noise from the plant is of a general nature, it is difficult to identify one or two key noise sources to target. Additional investigation (including possible staged shutdowns, where key components are switched off, to see their effect on the noise) is recommended to help successfully identify major noise contributors within the plant and help mitigate excessive noise.

• Investigate options to enclose blowers completely as per Vipac recommendation in previous report (ref [7]).


de!aide Brighton Cement - Birkenhead


TABLE OF CONTENTS 1. INTRODUCTION.................................................................................................................. 5

2. REFERENCES .....................................................................................................................5

3. EQUIPMENT........................................................................................................................ 5

4. ASSESSMENT CRITERIA ...................................................................................................5 4.1. Excerpt from the current EPA policy 2007 (ref [2]) .................................................. ........ 5

4.2. Indicative noise factors...................................................................................................... 6 4.3. Adjustment for characteristics .......................................................................................... 6

5. METHODOLOGY.................................................................................................................7

5.1. Measurement Locations .................................................................................................... 7 6. NOISE RESULTS ................................................................................................................ 8

6.1. Automatic Noise Logging ..................................................................................................8

6.2. Attended Measurements .................................................................................................... 8 6.3. Tonality .................................................................................... Error! Bookmark not defined.

7. SUMMARY AND DISCUSSION ................................... ........................................................ 9 8. RECOMMENDATIONS ...................................................................................................... 10

APPENDIX A GRAPHS FROM AUTOMAIC NOISE MONITORING .......................................... 11 APPENDIX B TONAL ANALYSIS GRAPHS .................... ERROR! BOOKMARK NOT DEFINED.

Ref: 508-12-0021 Commercial-in-Confidence



1. INTRODUCTION Vipac Engineers were requested by Adelaide Brighton Cement (ABC) to perform an environmental noise survey at local residential locations near their Birkenhead plant. The measurements were conducted on the 16th April and 30th April 2012.

2. REFERENCES [l] Environment Protection (Noise) Policy 2007, South Australian government;

[2] Guidelines for the use of the Environment Protection (Noise) Policy 2007, June 2009, Environment Protection Authority (EPA);

[3] Australian Standard AS2670. l-2001 (IS0263l-l:1997) - Evaluation of human exposure to whole-body vibration;

[4] Vipac report: 50H-07-0035-TRP-293141-0-ABC Birkenhead Environmental Noise Report;

[5] Vipac report: 50H-07-0035-TRP-293790-0 - Environmental Noise Acoustic Specification, 2007.

[6] Vipac report: 50H-10-0020-TRP-772498-2 - ABC Birkenhead - Env Noise and Vib Survey 2010.

[7] Vipac report: 50H-07-0035-TRP-383613-0 -ABC Birkenhead Environmental Noise; Concept Solutions.

[8] Map source -Atlas of South Australia, retrieved 21 51 June 2010 from http://www.atlas.sa.gov.au, ©Copyright Government of South Australia.

[9] IEC 61400-11: Wind Turbine Generator Systems - Part 11 Edition 2.1 "Acoustic noise measurement techniques".

[IO] Port Adelaide Enfield (City) Development Plan, Consolidated 16 February 2012, Development Act 1993.

3. EQUIPMENT • Unattended automatic noise logging was undertaken at one location using a Larson & Davis 831 Noise

Logger (SIN 2163), with Yz" free-field microphone (SIN 114405) and an approved windshield, last calibrated 7th December 2011

• The attended noise measurements were conducted using a Bruel & Kjaer Type 1 Hand-held Analyser model 2250 Sound Level Meter (Serial No. 2590542, calibrated on 11 August 2011), fitted with an approved windshield. The calibration of the sound level meter was checked before and after the measurements and was found to be consistent.

4. ASSESSMENT CRITERIA The Environment Protection (Noise) Policy 2007 (EPA) specifies the maximum allowable noise levels based on the time of day and land use, applicable at the most noise sensitive premises. These assessment criteria are determined based on the scheduled maximum noise levels for time of day and land use.

4.1. Excerpt from the current EPA policy 2007 (ref [2]) Part 1 - Section 5 - Indicative noise levels

(1) ... the indicative noise level for a noise source is to be determined as follows:

(a) where


http://www.atlas.sa.gov.au



i. the land uses principally promoted by the relevant Development Plan provisions for the noise source fall within a land use category specified in Table 1 in subclause (9); and

ii. the land uses principally promoted by the relevant Development Plan provisions for the noiseaffected premises fall within the same category as those principally promoted by the relevant Development Plan provisions for the noise source,

by reference to indicative noise factors set out in Table 1;

(b) in any other case - by reference to indicative noise factors set out in Table 2 in subclause (9).

(2) When measurements to determine the source noise level (continuous) are taken

(a) between 7:00am and lO:OOpm on the same day- an indicative noise factor used to determine the indicative noise level for the noise source is found in Table 1 or 2 in the column under the heading "day:; or

(b) between lO:OOpm on one day and 7:00am on the following day - an indicative noise factor used to determine the indicative noise level for the noise source is found in Table 1 or 2 in the column under the heading "Night" .

(5) .. . if the land uses principally promoted by the relevant Development Plan provisions for the noise source and those principally promoted by the relevant Development Plan provisions for the noise-affected premises do not all fall within a single land use category, the indicative noise level is the average of the indicative noise factors for the land use categories within which those land uses fall.

4.2. Indicative noise factors From the Port Adelaide Enfield Development Plan [ 10), the residential receivers are located within the zone designated as "Residential'', whereas the Adelaide Brighton Cement Birkenhead Plant is located in the zone designated "Industry

From the above excerpts from the Environment Protection (Noise) Policy 2007, the indicative noise levels for the residential locations are as follows (Average between 'General Industry' and 'Residential' land use category indicative noise levels):

Table 4.1: Indicative Noise Level.

Indicative noise level - dB(A)

Day

59

4.3. Adjustment for characteristics Note that for a noise containing a characteristic (tonal, impulsive, low frequency or modulating), the following adjustments are to be made to the source noise level :

• Noise containing 1 characteristic; a SdB(A) penalty must be added to the noise level (continuous).

• Noise containing 2 characteristics; and 8dB(A) penalty must be added to the noise level (continuous).

• Noise containing 3 or 4 characteristics, a 1 OdB(A) penalty must be added to the noise level (continuous).



BC Birkenhead - May 2012 Noise OB-1 2-0021-TRP-778549-0 Pa e 7of14

5. METHODOLOGY

5.1. Measurement Locations Vipac conducted attended night-time measurements at 7 residential locations in accordance with the Environment Protection (Noise) Policy 2007. These locations are shown below in Figure A-1 below, with measurements taken at locations R2, R3, RS, R8, Rl2, Rl3 and Rl5 . Please note that Rl5 is a new addition

Walton Street, Green Circle). Additionally unattended automatic noise logging at one residential location (R2) was conducted for the duration of three days.

men / Company

Figure A-1: Measurement Locations [8) .



BC Birkenhead - May 2012 Noise OB-12-0021-TRP-778549-0 Pa e 8of14

6. NOISE RESULTS

6.1. Automatic Noise Logging As has been noted during previous surveys, the noise levels at the receiver locations are heavily influenced by intermittent events, in particular traffic noise. As a result, the LAeq noise level has been shown to overestimate the noise contribution from the ABC plant.

Statistical noise measurements were acquired continuously and averaged over periods of 15 minutes (or over a different period of time equally representative of the impact of the noise from the noise source), providing LAio and LA9o levels. The LA10 and LA9o statistics relate to the noise level that is exceeded for 10% and 90% of the time respectively. L10 statistic can be used as a rough estimator of traffic noise.

A comparison of LAeq and LA10 indicators show similar levels (within 2dB during the day and ldB during the night), especially during the day, confirming that the measured LAeq levels are likely to be heavily influenced by traffic noise.

All noise measurements were conducted when the plant was running continuously and under normal operating and production conditions for both day and night periods. As such, the noise emitted from the plant is continuous and therefore would be captured by the L90 statistic. Subsequently, the LA9o noise levels have been used in the assessment of the contribution of the ABC Birkenhead plant at the resident receiver locations.

Table 6.1 below provides a summary of the noise measurements taken at R2 ( Hargrave Street).

Table 6.1: Automatic Noise Logger Measurements at Hargrave Street

Noise Level dB(A) Average Average

Wind Wind Resident Time Criteria Exceed a nee Speed Direction Number DatefTime Period dB(A) LAeq LA10 LA90 (dB) (m/s) (deg)

30/04/2012 56 58 55 - 3 55 1/05/2012

Day 59 58 60 55 - 6.9 216 2/05/2012 57 59 55 - 6.6 167

#2 3/05/2012 57 59 54 - 3.9 186 30/04/2012 56 57 54 4 7.5 45 1/05/2012

Night 50 56 57 54 4 6.0 56 2/05/2012 55 56 53 3 5.7 166 3/05/2012 55 57 54 4 2.3 105

Graphs representing results of the automatic noise monitoring have been given in Appendix A.

As it can be seen from the graphs, and the daily summaries, that the noise at R2 did not at any stage during the night-time, drop below the 50dB(A) criterion, and the average LA9o was 54dB(A), and the average LAeq was 56dB(A). Additionally, during attended noise measurements, the measured night-time noise levels from the plant agreed with these values.

It was found that noise levels during the daytime (including LAeq noise levels) meet the stipulated criterion.

6.2. Attended Measurements Attended noise measurements were undertaken to coincide with the automatic noise monitoring. We note that the automatic noise logging was re-scheduled to be conducted from the 30th April to the 3rd May, however a majority of the attended measurements were undertaken during the first, failed attended monitoring event. Attended night-time noise monitoring was undertaken during the second automatic noise monitoring period.



BC Birkenhead - May 2012 Noise 08-1 2-0021 -TRP-778549-0 Pa e 9of14

The results show that all but residential receiver 13 exceeded the EPA criterion during the night, from ldB up to 7dB

During the night-time noise surveys, it was noted that there was a tonal noise (approx 590Hz), and further narrowband analysis showed that although it was audible, was not considered a significant tone (when following the tonal audibility method outlined in IEC61400- l 1 (9) , we note that although this standard is specific to wind turbines, in general it provides a method as to assess the severity of spectral peaks).

Additionally, analysis of all night-time third octave noise data showed that there were no tones present where the measured sound level in one third octave band was greater than 5dB than the sound level in the adjacent third octave bands.

We noted that during the day-time noise measurements, some of the measured noise levels were lower than the noise levels measured during the night-time. We note that this is likely due to the fact that the day time noise measurements were conducted where the wind was blowing from a westerly direction and therefore away from the plant.

Table 6.2 below provides a summary of the attended noise measurements taken at the selected 7 residential locations.

Table 6.2: May 2012 environmental noise survey summary data.

Time Noise Wind Wind Resident Perio Criteria Level Exceed a nee Speed Direction Number Date/Time d dB(A) dB(A) (dBA) (mis) (deg)

20/04/2012 12:03 Day 59 58 - 0.6 180 #2 16/04/2012 23:45 Night 50 54 4 1.7 157.5

2/05/2012 23:01 Night 50 56 6 4.2 157.5 20/04/2012 13:55 Day 59 52 - 1.1 225

#3 16/04/2012 23:58 Night 50 52 2 1.7 157.5

#5 20/04/2012 12:13 Day 59 52 - 0.6 180 16/04/2012 23:30 Night 50 53 3 1.9 135 20/04/2012 12:30 Day 59 47 - 1.7 225

#8 23/05/2012 3:18 Day 59 49 - 10.8 292.5 16/04/2012 22:42 Night 50 51 1 4.2 90 20/04/2012 12:45 Day 59 57 - 1.7 247.5

#12 16/04/2012 23:15 Night 50 56 6 1.9 135 2/05/2012 22:46 Night 50 54 4 4.2 157.5

20/04/2012 11 :55 Day 59 44 - 0.6 180#13

16/04/2012 22:26 Night 50 49 - 4.2 90

#15 20/04/2012 11 :55 Day 59 54 - 0.6 180 16/04/2012 22:56 Night 50 57 7 1.7 135

(*)Note that the 'Noise Level' is determined from the L90 statistic as discussed in the preceding section.

7. SUMMARY AND DISCUSSION • EPA night-time criterion has been exceeded at 6 receiver locations (including all automatic noise

logger data).

• EPA day-time criterion has been met at all receiver locations (including all automatic noise logger data)

• The amount exceeded at the 6 receiver locations is approximately 1-7dB.



BC Birkenhead - May 2012 Noise 08-12-0021-TRP-778549-0 Pa e 10 of 14

• The noise from the plant dominates the noise of the surrounding residential area, especially in low wind speed events, as well as in worst case wind direction events.

• Noise from the plant is general broadband fan-type noise, with no specific noise source standing out from the 'hum' of the plant.

8. RECOMMENDATIONS

• Continue cleaning regime for airslide blowers.

• Conduct an investigation into general noise breakout from the plant. As noise from the plant is of a general nature, it is difficult to identify one or two key noise sources to target. Additional investigation (including possible staged shutdowns, where key components are switched off, to see their effect on the noise) is recommended to help successfully identify major noise contributors within the plant and help mitigate excessive noise.

• Investigate options to enclose blowers completely as per Vipac recommendation in previous report (ref [7]).


.delaide Brighton Cement - Birkenhead

BC Birkenhead - May 2012 Noise !508-12-0021 -TRP-778549-0 Paae 11of14

APPENDIX A GRAPHS FROM AUTOMAIC NOISE MONITORING

110

105

100

95

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40

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30

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Datcrrimc

Ref: 508-12-0021 Commercial-in-Confidence 24 May 2012


BC Birkenhead - May 2012 Noise 508-12-0021-TRP-778549-0 Paae 12of14

Measured Noise Levels at Hargrave Street- Location 2 (01 May 2012) llOr-----------~------------,---------~------;::::======~

105

100

95

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Date/Time


delaide Brighton Cement - Birkenhead BC Birkenhead - May 2012 Noise

lsOB-12-<l021-TRP-n 8549-0 Paae 13of14

Measured Noise Levels at Hargrave Street- Location 2 (02 May 2012) llOr-----------,------------i------------r------;::::::;::::::;::::::;::::::~

--LAeq

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delaide Brighton Cement - Birkenhead BC Birkenhead - May 2012 Noise 08-12-0021-TRP-778549-0 Paae 14of14

Measured Noise Levels at Hargrave Street- Location 2 (03 May 2012) llOr------~-------,------r--------,---------,---;:::======~

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Documents

ABC Annual Environmental Noise Audit - EPA · 23 . Adelaide Brighton Cement -Birkenhead Mark Carlstrom . ABC Birkenhead -May 2012 Noise . ABC Annual Environmental Noise Audit . Document