da acoustic report - blacktown.nsw.gov.au

File: PKA11241 R01v1 DA Acoustic Report.docm

Prepared For: Jack Skinner

Holbeche Pty Ltd 42 Alexander Avenue, North Willoughby NSW 2068

Email: [email protected]

DA ACOUSTIC REPORT Holbeche Road (19), Arndell Park

ID: 11241 R01 v1

29 May 2018

PKA Acoustic Consulting DA Acoustic Report

Holbeche Road (19), Arndell Park | 11241

Jack Skinner PKA11241 R01v1 DA Acoustic Report.docm — [v1] | 29-May-2018| of 12

DOCUMENT INFORMATION

Author: Sri Harsha Eati Checked By: Daniel Firth

Issue: R01

Version: 1

Date Version To Email

22/05/2018 A DRAFT Jack Skinner [email protected]

29/05/2018 1 Jack Skinner [email protected]

Prepared By: PJ Knowland Pty. Ltd. t/a PKA Acoustic Consulting

PO Box 345, Lane Cove NSW 1595

ABN 87 256 407 546, ACN 621 896 204

T (02) 9460 6824 · E [email protected]




CONTENTS

1.0 INTRODUCTION 4

2.0 SUMMARY 4

3.0 SITE DESCRIPTION 5

4.0 NOISE CRITERIA 6

4.1 Blacktown City Council DCP 2015 6

4.2 NSW EPA Noise Policy for Industry (NPfI) 6

5.0 NOISE SURVEY 7

5.1 Instrumentation 7

5.2 Project Noise Criteria 8

6.0 DISCUSSION 9

6.1 Noise impact from truck activity 9

6.2 Noise impact from warehouse area 10

7.0 RECOMMENDATIONS 10

APPENDIX A DRAWINGS USED TO PREPARE REPORT 11

LIST OF FIGURES

Figure 3-1 Site Location 5

LIST OF TABLES

Table 4-1 Noise Criteria - Amenity for receiver buildings 6

Table 5-1 NPfI Project Noise Trigger Levels 8

Table 6-1 Typical Time Frames and Sound Pressure Levels – Cars attending service 9

Table 6-2 Traffic Noise Impact from Truck activity 9

This firm is a member of the Association of Australian Acoustical Consultants.

The work reported herein has been carried out in accordance with the terms of membership. We stress that the advice given herein is for acoustic

purposes only, and that the relevant authorities should be consulted with regard to compliance with regulations governing areas other than acoustics.




1.0 INTRODUCTION

PKA Acoustic Consulting has been commissioned by Holbeche Pty Ltd to provide an acoustic report to assess the noise impact from the proposed industrial development at 19 Holbeche Road, Arndell Park upon the surrounding environment.

As part of the approval documentation, Blacktown Council requires an acoustic report to assess the environmental noise impact to provide recommendations if required.

2.0 SUMMARY

An acoustic assessment has been conducted in accordance with the acoustic requirements of Blacktown City Council and the NSW EPA Noise Policy for Industry 2017 to assess noise impact of the proposed industrial development.

Unattended noise monitoring was attempted at the nearest sensitive residential receivers but due to lack of access and no secure location available, attended noise measurements were performed to estimate the existing ambient noise levels.

The assessment indicates that noise emissions from the proposed industrial premises and operation will comply with the acoustic requirements of the NSW EPA Noise Policy for Industry and the Blacktown City Council.




3.0 SITE DESCRIPTION

The proposed industrial premises are to be located at 19 Holbeche Road, Arndell Park. The most sensitive residential receiver is located to the north at approximately 200 metres away. The site bound by other industrial premises on the remaining sides.

The site location is shown in Figure 3-1.

Figure 3-1 Site Location

The proposed hours of operation are from 7am to 6pm. The premises will be mainly used for warehousing with typical activities such as forklifts and trucks.

19 Holbeche Road,

Arndell Park

Nearest Sensitive

Residential

Receivers




4.0 NOISE CRITERIA

4.1 Blacktown City Council DCP 2015

For developments in industrial areas, the Blacktown City Council specifies the following requirements in Section 7.2.3 of DCP 2015.

Any machinery or activity considered to create a noise nuisance must be adequately soundproofed in accordance with the provisions of the Protection of the Environment Operations Act 1997. The Environment Protection Authority may require certain premises to be licensed under the Protection of the Environment Operations Act 1997. The use of mechanical plant and equipment may be restricted where sites are located near a residential area. Developments located near residential areas should be designed so that the development does not cause a noise nuisance.

4.2 NSW EPA Noise Policy for Industry (NPfI)

Noise generated from commercial and industrial premises and from mechanical noise is generally assessed against the requirements of Industrial Noise Policy (2000), which has been reviewed and superseded by the current NSW EPA Noise Policy for Industry 2017 (NPfI). The policy sets out two separate criteria to ensure environmental noise objectives are met.

The first criterion considers intrusive noise to residential properties and the second is set to ensure the amenity of the land use is protected. The lower value of both criteria is considered to be the Project noise trigger level, which is the limit of the LAeq 15min noise level that must not be exceeded for the corresponding period of the day.

Amenity Criterion

To limit continuing increases in noise levels, the maximum ambient noise level within an area from commercial noise sources should not normally exceed the levels as specified in Table 2.2 of the policy for the specified time of the day. The NPfI recommends the following Amenity Noise Levels for various receiver premises.

Table 4-1 Noise Criteria - Amenity for receiver buildings

All values in dB(A)

Type of receiver Time of day Recommended

Amenity Noise Level LAeq (period)

Residential (Suburban)

Day 55

Evening 45

Night 40

Industrial When in use 75




To ensure that industrial noise levels (existing plus new) remain within the recommended amenity noise levels for an area, a project amenity noise level applies for each new source of industrial noise as follows:

Project amenity noise level for development = recommended amenity noise level minus 5 dB(A).

To standardise the time periods for the intrusiveness and amenity noise levels, this policy assumes that the Amenity LAeq,15min will be taken to be equal to the LAeq, period + 3 decibels (dB).

Intrusiveness Criterion

The intrusiveness of a stationary noise source may be considered acceptable if the average of the maximum A-weighted levels of noise, LAeq 15 minute from the source do not exceed by more than 5dB the Rating Background Level (RBL) measured in the absence of the source. This applies during all times of the day and night. There also exists an adjustment factor to be applied as per the character of the noise source. This includes factors such as tonal, fluctuating, low frequency, impulsive, intermittent etc. qualities of noise. The RBL is determined in accordance with Section 2.3 of the NSW EPA NPfI. The intrusiveness criterion is LAeq 15 minute < RBL+5.

5.0 NOISE SURVEY

PKA visited the site on 8th May, 2018 to conduct a noise survey of the existing ambient noise on site. A noise monitor was to be deployed on the north of the proposed premises at the residential properties 200m way. However, access or a secure location was not available and therefore attended measurements of the ambient noise levels were conducted during the evening period at 19 Shelley Crescent, Blacktown. The lowest 15-minute ambient noise measurement was used to set the noise criteria (below) to assess the worst-case and most sensitive scenario.

5.1 Instrumentation

Noise measurements were conducted using the following equipment:

- Sound analyser NTI XL2 Type Approved, Serial number A2A-09351-E0.

- Sound calibrator B&K 4230, Serial number 11419.

The instruments were calibrated before and after the noise measurements and there were no adverse deviations between the two.

The analysers are Type 1 and comply with AS IEC 61672.2-2004. The instruments carry traceable calibration certificates.




5.2 Project Noise Criteria

The tables below present the results of the ambient noise monitor measurements.

As a guide, the noise criteria defined in the Noise Policy for Industry (NPfI) is listed below. The assessment periods are defined by the NSW NPfI are as follows:

- Daytime: 7 am to 6 pm

- Evening: 6pm to 10 pm

- Night: 10pm to 7 am

Table 5-1 NPfI Project Noise Trigger Levels

All values in dB(A)

Receiver

Type Period

Measured

RBL

(LA90)

Acceptable

Noise

Levels

LAeq(period)

NSW Noise Policy for Industry

Criteria

Project

Noise

Trigger

Levels

LAeq15min

Amenity

LAeq15min

Intrusiveness

LAeq15min

Residential (Sub-

Urban)

Day 46 55 53 51 51

Evening N/A* 45 - - -

Night N/A* 40 - - -

Industrial When in use

As above

75 73 73

*The site is not proposed to be used during the evening and night hours as per information provided to PKA.




6.0 DISCUSSION

6.1 Noise impact from truck activity

PKA reviewed the car park and vehicle activity plan (listed in Appendix A). Typical time frames for events and their corresponding sound pressure levels were considered. The assumptions made for the event are listed below in Table 6-1. The values are based on extensive measurements conducted by PKA.

Table 6-1 Typical Time Frames and Sound Pressure Levels – Cars attending service

Event Description Sound Pressure Levels (10m) Duration of each Event

(15-minute period – 900 sec)

Truck entering or exiting the driveway on Contaplas Street

61 dB(A) 45 seconds

Truck idling while waiting to enter/exit on premises

55 dB(A) 855 seconds

Based on the above information, PKA performed calculations the estimate the maximum number of truck entries/exits in a minute period so that the noise impact from the activity does not exceed the noise criteria listed in Table 5-1.

Table 6-2 Traffic Noise Impact from Truck activity

Calculated noise at sensitive receivers

Period of Day

NPfI Project Trigger Levels – Noise Criteria

(Leq 15min)

Complies?

Vehicles Arriving into Car Park

Residential receivers to the north

Maximum of 8 truck movements in a 15-

minute period

Leq 15min: dB(A)

Day

7am to 6pm 49 dB(A) Yes

Other industrial receivers

Maximum of 8 truck movements in a 15-

minute period

Leq 15min: 72 dB(A)

When in use 75 dB(A) Yes




6.2 Noise impact from warehouse area

PKA has been advised that the proposed industrial premises will be used as a warehouse area which will include activities such as forklifts, storage and other typical activities from a premise of this nature. Based on extensive measurements conducted at similar venues, the following spectrum was used in the calculations.

Description dB(A)

Induct Sound Power Level

Octave Band Centre Frequency (Hz)

63 125 250 500 1k 2k 4k 8k

Warehouse Internal– Spatial Sound Pressure

Levels 76 74 72 70 71 58 59 58 59

When calculated to the residential premises or other industrial premises, the noise impact is not significant and is substantially below the noise criteria. This is in part to the large distance to the from the warehouse to the residential receiver on the north.

7.0 RECOMMENDATIONS

The following recommendations need to be employed to ensure that acoustic compliance is achieved and maintained during operation. The recommendations have been based on data provided to PKA for the preparation of this report and assumptions made in calculations.

Car Park Activity

1. The number of vehicle movements per 15 minutes must be limited to the following:

Period Number of movements per 15 minutes

(Both arriving and departing)

Daytime

(7am to 6pm) 8 movements per 15 minutes

2. The selection of any future outdoor mechanical and plant equipment must be checked so that the rated sound power/pressure levels will comply at the boundary of the sensitive residences (existing and proposed) with the criteria listed in Table 5-1.




APPENDIX A DRAWINGS USED TO PREPARE REPORT

This report was prepared using drawings prepared by Nordon Jago Architects for the proposed industrial development at 19 Holbeche Road, Arndell Park, Job No. ORL00118.

No. Title Date

DN.001 B Plan 29-01-2018

DN.002 B Sections 29-01-2018

DN.003 B Elevations 29-01-2018

DN.004 B Carpark Access Study 29-01-2018

DN.005 B Carpark Sections 29-01-2018

DN.006 B Carpark Plan 29-01-2018

PKA ACOUSTIC CONSULTING PO Box 345, Lane Cove 1595

+612 9460 6824 — [email protected]

da acoustic report - blacktown.nsw.gov.au

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