Acoustic Assessment - Original

HUGH WILLIAMSON ASSOCIATES INC. Ottawa, Ontario, Canada

Postal Address: PO Box 74056, RPO Beechwood, Ottawa, Ontario, K1M 2H9, Canada

Phone/Fax: (613) 747 0983, Email: [email protected]

http://www.hwacoustics.ca

ACOUSTIC ASSESSMENT OF THE PROPOSED

DEWDNEY MOUNTAIN FARMS QUARRY

Township of Galway Cavendish and Harvey

Prepared for

Dewdney Mountain Farms Limited

1503 Flos Road 8 East

Elmvale, Ontario L0L 1P0

Prepared by

Hugh Williamson Associates Inc

13 September 2011

Acoustic Assessment of the Dewdney Mountain Farms Quarry REPORT

Township of Galway, Cavendish and Harvey 13 September 2011

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HUGH WILLIAMSON ASSOCIATES INC.

ACOUSTIC ASSESSMENT OF THE PROPOSED

DEWDNEY MOUNTAIN FARMS QUARRY

Table of Contents

Section Page Table of Contents i 1.0 Introduction 1

2.0 Detailed Facility Description 5

3.0 Noise Source Summary 6

4.0 Point of Reception Summary 8 5.0 Recommended Mitigation Measures 9

(Site Plan Recommendations)

6.0 Assessment Criteria, Performance Limits 13

7.0 Impact Assessment 14

8.0 Conclusions and Recommendations 19

References 20

Appendix 1 Figures 21 Appendix 2 Acoustic Modeling Details 37 Resumé Dr. Hugh Williamson



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ACOUSTIC ASSESSMENT OF THE PROPOSED DEWDNEY MOUNTAIN FARMS QUARRY

1.0 Introduction

Dewdney Mountain Farms Limited wishes to apply for a Class A Licence, Category 4, under

the Aggregate Resources Act to establish and operated a quarry, located in the Township of

Galway, Cavendish and Harvey. This acoustic study, carried out by Hugh Williamson

Associates, assesses the potential impact of noise from the Dewdney Mountain Farms quarry

operations on nearby receptors in accordance with Ontario Ministry of Environment (MoE)

guidelines. It is intended that this report will form part of the application for a licence under

the Aggregate Resources Act.

This report has been prepared in accordance with the MoE Document NPC-233, Information

to be Submitted for Approval of Stationary Sources of Sound, October 19951. Noise from the

facility is to be assessed according to MoE Documents: NPC-232, Sound Level Limits for

Stationary Sources in Class 3 (Rural) Areas, October 19952 and NPC-205, Sound Level Limits

for Stationary Sources in Class 1 & 2 (Urban) Areas, October 19953. The report follows the

recommended format contained in, Sample Application Package, Basic Comprehensive

Certificate of Approval (Air and Noise), July 20094.

This report assesses the impact of all noise sources occurring on-site, within the proposed

license boundaries, except for noise and vibration due to blasting. The impacts of noise and

vibration from blasting will be assessed by other studies.

The noise assessment methodology is summarised below.

Identification of noise sensitive receptors in the vicinity of the quarry. Potential noise

sensitive receptors include residences, motels, places of worship, schools and hospitals.

Determination of the MoE sound level limits which will apply at each of the noise

sensitive receptors.

Identification of the sources of noise that will arise from quarry operations. In the

current study, the strengths of the various noise sources were obtained from

measurement of similar operations at other Ontario quarries.

Based on the strengths of the individual noise sources, noise levels due to quarry

operations are predicted at nearby noise sensitive receptors. The MoE methodology

requires that compliance be assessed under predictable “worst case” conditions for

normal operations.



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Assessment of compliance of the noise due to quarry operations with MoE sound level

limits. Where appropriate, mitigation measures are recommended such that compliance

with MoE sound level limits is achieved at all receptors.

Surrounding Lands, Acoustic Environment and Critical Receptors

Directions in this report are in reference to site north as shown in the Area Plan, Figure A1.1,

Appendix 1. The current zoning for the surrounding area is shown in Figure A1.3.

The Dewdney Mountain Farms quarry is located north-east of Bobcaygeon, Ontario, adjacent

to Ledge Road, north of the intersection of County Road 36 and Quarry Road in the Township

of Galway, Cavendish and Harvey as shown in Figure A1.1.

The legal description of the land occupied by the Dewdney Mountain Farms quarry site is as

follows.

Part Lots 28, 29 & 30, Concession 15

Township of Galway, Cavendish and Harvey

County of Peterborough

The Municipal Zoning of land surrounding the Dewdney Mountain Farms quarry is Rural

(RU) and Wilderness (WS) as shown in the Zoning Plan, Figure A1.3. The quarry site itself is

zoned Rural, (RU).

The quarry site is located at the northern extremity of a broad ridge, running approximately

north-south. To the west and east of the site, the surrounding land falls away with some natural

sharp changes in elevation. To the north, the land falls away to a series of small lakes. To the

south, the ridge narrows and slopes towards County Road 36. In all directions, the land is

forested.

Critical Receptors

Ledge Road forms the eastern boundary of the Dewdney Mountain Farms quarry. A number

of receptors are located along Ledge Road. There are also receptors along Tully Road to the

south and Bass Lake Road to the west.

Twelve noise sensitive receptors are shown in Figure A1.1 and listed in Table 1. Of these, six

critical receptors (R1, R2, R3, R5, R10 and R12), were selected as being the receptors, most

likely to be impacted by noise from the Dewdney Mountain Farms quarry. Other noise

sensitive receptors are at greater distances from the quarry and will be less affected by noise.

With the possible exception of R8 (# 789 Tully Road), all receptors are Seasonal Residences

(generally hunting camps).



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In order to consider the worst case for each receptor, points of reception are taken as an

outdoor living area located 30 m towards the quarry from each residence as per MoE

Guidelines2. Note that the closest residences are 1-story, so that second storey window points

of reception are not relevant in these cases.

Table 1: Points of Reception

Point of

Reception

Description

Distance from the Extraction Limit to

the Nearest Point of Reception*

(metres)

Elevation

(metres above sea level)

R1

Critical

Seasonal Residence, single storey (closest to the north); # 2416 Ledge Road. This is the quarry owner’s property.

910

290

R2

Critical

Seasonal Residence, single storey (closest to the northeast); Ledge Road

580

293

R3

Critical

Seasonal Residence, single storey (closest to the east); # 2423 Ledge Road

155

314

R4

Seasonal Residence, single storey (to the east); # 2373 Ledge Road

995

315

R5

Critical

Seasonal Residence, single storey (closest to the east at the south end of the quarry ); # 2287 Ledge Road

270

305

R6

Seasonal Residence, single storey (closest to the south-east on eastern side of Ledge Road); # 2183 Ledge Road

1225

300

R7

Seasonal Residence, single storey (closest to the south-east on western side of Ledge Road); # 2184 Ledge Road

1250

300

R8

Residence, single storey; # 789 Tully Road

1500

255



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Point of

Reception

Description

Distance from the Extraction Limit to

the Nearest Point of Reception*

(metres)

Elevation

(metres above sea level)

R9

Seasonal Residence, single storey; in forest, access possibly from Tully Road or Bass Lake Road

940

265

R10

Critical

Seasonal Residence, single storey (closest to the southwest); in forest, access possibly from Tully Road or Bass Lake Road

840

255

R11

Seasonal Residence, single storey (closest to the north-west); access possibly from Bass Lake Road or White Valley Road

2170

273

R12

Critical

Seasonal Residence, single storey (closest to the north-west corner of the quarry); near the Twin Mountains Snowmobile Club at # 2600 Bass Lake Road

1760

260

Notes:

A point of reception for the Outdoor Living Area, OLA, of a rural residence is defined as a ‘point on the premise of a person within 30 m of a dwelling’, see MoE Document NPC 232

2.

Critical denotes a point of reception selected for detailed analysis and for which predicted noise levels are presented in this report.



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2.0 Detailed Facility Description

Dewdney Mountain Farms quarry will produce both dimension stone and aggregate products.

Excavation will be carried out using excavators, loaders and, where necessary, drilling and

blasting. Dimension stone materials will be sorted and stored in stock piles using loaders or

skid steers. Aggregate materials may be further processed by crushing, screening and/or

washing. Product material, dimension stone or aggregates, are loaded onto trucks for delivery

off-site.

Extraction of material will take place above the water table. The depth of excavation varies

across the site and may be up to approximately 10 metres.

A concrete batch plant may also operate on the site. Raw materials for concrete, aggregate,

water and cement powder, are loaded into the rotating drums of concrete trucks from silos or

via conveyors. Each concrete truck rotates its drum for a brief period to mix the raw materials,

then the truck departs the site. Bulk cement powder is delivered by truck periodically. The

cement powder is pumped from the truck to a storage silo using a blower.

Generally, the aggregate processing equipment (crushing, screening and washing) will be

brought to the site only during periods of production.

Shipping of up to a maximum of 8 trucks loads / hour of dimension stone or aggregate is

expected during peak periods of operation. In addition, shipping of up to a maximum of 8

trucks loads / hour of concrete is also expected during the peak periods of operation.

The site has been divided up into 7 extraction areas as shown in Figure A1.2. Area 7 contains

the main entrance to the quarry and will be extracted last. Prior to extraction, Area 7 will be

used as the location for the scale house, maintenance facilities, storage and the concrete plant.

Main quarry operations will take place during day time hours 07:00 to 19:00. Limited truck

loading and shipping may take place outside day time hours, e.g. prior to 07:00.



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3.0 Noise Source Summary

Quarrying operations

Table 2 contains sound power data for all operations which are significant noise sources

during quarry operations, including excavators, rock drill, loaders, skid steers, crushing,

screening/washing, on-site truck movements and concrete production. This data comes from

noise measurements made by Hugh Williamson Associates at similar operations in quarries or

other locations in Ontario.

As actual models of equipment in use in the quarry will vary from time to time, it is

recommended that noise source data be evaluated if new types of equipment are brought on

site. Measurements should be compared with the levels shown in Table 2 to ensure that sound

level limits are met at receptors.

Portable equipment for site preparations and rehabilitation

Portable construction equipment will be used occasionally for site preparation (e.g. land

clearing and construction of berms) and rehabilitation. This equipment could typically include

excavators, hydraulic shovels and dozers. Site preparation and rehabilitation activities will

take place only during daytime hours (07:00 – 19:00).



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Table 2: Noise Source Summary Table

Source ID

Source

Description

Sound Power

(dBA)

Source

Location Ht. above ground

(m)

Sound

Character- istics

Noise

Control Measures

Excavator

Case CX210 or similar

115.2

3

Non-tonal, non-directional

Berms or lift faces when

needed

Loader

CAT 950G or similar

109.9

3



needed

Skid Steer

Case 95XT or similar

108.9

1.5



needed

Rock Drill

Hydraulic, top hammer or similar

118.6

2



needed

Crushing Plant

Portable crushing plant with diesel generator

120.5

3



needed

Screening/Washing

Plant

Vibrating screen plant, with or without washing, diesel generator and one loader

111.3

3


Not

Applicable

Truck Movements

on the Internal Haul Route

Single highway truck, slow moving

110.1

3


No Jake Brakes;

20 kph max

Concrete Plant

(mixing)

Concrete truck, high speed mix

112.3

3


Barriers or

berms

Cement Powder

Unloading

Pumping cement into silo

118.7*

2

Tonal*, non-directional

Barriers or

berms

* 5 dBA penalty to be applied to tonal noise sources in noise modelling5



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4.0 Point of Reception Summary

Noise levels have been predicted at the critical receptors using predictable “worst case”

assumptions under normal operations and using the ISO sound propagation methodology7, as

implemented in the sound prediction software Cadna-A, version 4.1.137. The ISO

methodology provides a conservative (i.e. high) estimate of the noise level at a receptor taking

into account adverse wind and meteorological conditions which favour noise propagation

towards the point of reception.

The estimation method includes the following.

Distance attenuation is based on spherical spreading.

Atmospheric attenuation.

Foliage and ground attenuations, as appropriate.

Barrier attenuation, as appropriate.

The MoE require that sound levels at points of reception be predicted using „worst case‟

assumptions for normal operations. The MoE also favour the ISO sound propagation

methodology. The “worst case” conditions are very conservative, particularly for mobile

equipment where “worst case” corresponds typically to the closest distance that the equipment

will ever get to individual receptors. Such a situation will occur for only brief periods over the

whole of the life of the quarry.

For the Dewdney Mountain Quarry, each extraction area has been analyzed separately. In all

instances, „worst case‟ corresponds to situations where the extraction equipment is on the

surface and located closest to critical receptors R3 and/or R5.

Details and results of sound level predictions are contained in Appendix 2. A summary of

point of reception worst case predictions at each critical receptor is provided for all extraction

areas in Tables A2.6.x in Appendix 2.



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5.0 Recommended Mitigation Measures (Site Plan Recommendations)

Mitigation measures to reduce noise emissions from quarry operations are are detailed below.

It is recommended that these measures be included on the site.

Note: Figures A1.6 to A1.15 illustrate examples of worst case mobile equipment locations for

particular extraction areas.

General noise mitigation requirements:

Quarry operations, including the concrete plant and crushing plant operations, can

take place only during the daytime hours of 07:00 to 19:00. (Some night loading

and shipping is allowed, see below.)

Except in extraction areas 4B, 5B, 6B and 7, where reduced operations are

specified, the maximum numbers of equipment to be operated are as follows.

o Two excavators and one rock drill, or, three excavators

o Two loaders

o One skid steer

o One screening/wash plant

o One crushing plant

o One concrete plant, including one cement powder unloading operation

The concrete plant is to be located in the south west corner of extraction area 7, as

shown in Figures A1.4 and A1.5. Concrete production can take place up to a

maximum of 8 truckloads per hour. Barriers or berms required for the concrete

plant are as follows.

o A 5 m high barrier, 20 m long and no more than 5 m from the center of

the concrete truck is to shield receptors to the west.

o A 5 m high barrier, 12 m long and no more than 3 m from the cement

powder blower, usually located on the cement powder truck, is to shield

receptors to the west.

o A 5 m high berm, 20 m long is to shield the concrete plant and the cement

powder unloading operation from Receptor R5 to the southeast. The berm

should be no more than 20 m from the locations of the centres of concrete

truck or the cement powder unloading blower.

Noise barriers or berms are to be solid, having no gaps, and have a surface density

of no less than 20 kg/m2. Examples of suitable barriers or berms are as follows.

o Earth, gravel or aggregate berms

o Concrete or brick walls

o Commercial noise barriers



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The crushing plant and the screening/washing plant are restricted the following two

locations

o Crushing/screening/washing in Area 1, (shown in Figure A1.6):

The crushing plant to be at least 1150 m from R3, and shielded from R3

by a 6 m high berm and/or lift face which is no more than 20 m from

the crushing plant.

The screening/washing plant is to be at least 1150 m from R3, no

shielding is required for the screening/washing plant.

o Crushing/screening/washing in Area 2 (shown in Figure A1.8):

The crushing plant to be at least 1200 m from R3 and R5, and shielded

from R3 and R5 by a 6 m high berm and/or lift face which is no more

than 20 m from the crushing plant.

The screening/washing plant is to be at least 1200 m from R3 and R5,

no shielding is required for the screening/washing plant.

Truck loading and shipping off site during the day, 07:00 to 19:00, is limited to 8

truckloads per hour of dimension stone or aggregate material.

Truck loading and shipping off site, using one loader and one skid steer, may occur

at night, 19:00 to 07:00, to a maximum of 4 truckloads per hour of dimension stone

or aggregate material.

Truck movements on-site are to be controlled as follows.

o Trucks are to enter and exit the site via the main Ledge Road entrance in

Area 7.

o Truck speeds are to be limited to 20 km/h.

o Compression brakes, i.e. Jake Brakes, are not to be used

Mitigation Requirements for Individual Extraction Areas:

Extraction Area 1 (see Figures A1.6 and A1.7):

Excavators, loaders, rock drill and skid steer may be used without the need for

noise mitigation

Extraction Area 2 (see Figures A1.8 and A1.9):

Excavators, loaders, rock drill and skid steer may be used without the need for

noise mitigation

Extraction Area 3 (see Figure A1.10):

Operations of the excavators and rock drill must be no more than 20 m from a 4 m

high berm and/or lift face which provides shielding for receptor R3.



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A 5 m high berm located in the eastern setback, along the eastern quarry boundary,

is also required to shield R3 from extraction operations. This berm can be built

progressively as the extraction operation proceeds.

Extraction Areas 4A - more than 550 m from R5 (see Figure A1.11):



Extraction Areas 4B - less than 550 m from R5 (see Figure A1.12):

Reduced numbers of extraction equipment required:

o one loader or one skid steer, plus one excavator and one rock drill; or,

o one loader or one skid steer, plus two excavators.



Extraction Areas 5A or 6A - more than 400 m from R3 (see Figure A1.13):






Extraction Areas 5B or 6B - less than 400 m from R3 (see Figure A1.14):


o one loader or one skid steer, plus one excavator; or,

o one loader or one skid steer, plus one rock drill.






Extraction Area 7 (see Figure A1.15):


o one loader and one skid steer, plus one excavator and one rock drill; or,

o one loader and one skid steer, plus two excavators.



Break in Boundary Berm (if needed):

A secondary entrance to the quarry from Ledge Road is shown near receptor R3. If a berm is

needed is needed for noise control at this location, then a break in the berm can be made such

as shown in Figure A1.16. The shape and extent of the berm break must be such that there is

no direct line of sight to any quarry operations from nearby receptor R3.



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Evaluation of Noise Sources

It is recommended that noise source data for the crushing plant, screening and

washing plant, rock drill, excavator, loader and concrete plant be re-evaluated

whenever a new type of equipment is brought on site. If the levels are found to be

significantly different to those given in Table 2, then the mitigation measures

should be reviewed by a qualified acoustical consultant to ensure noise levels at

receptors are in compliance with MoE Guidelines.

Portable equipment for site preparations and rehabilitation

Portable construction equipment will be used occasionally for site preparation (e.g.

land clearing and construction of berms) and rehabilitation. This equipment would

typically include excavators, hydraulic shovels and dozers. To minimize the

impact of noise during site preparation and rehabilitation, the construction

equipment used, excavators, bulldozers, etc., will comply with MoE Publication

NPC-1156, Construction Equipment, August 1978. This publication gives noise

standards to be met by construction equipment in Ontario.

Site preparation and rehabilitation activities will take place only during daytime

hours (07:00 – 19:00).



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6.0 Assessment Criteria, Performance Limits

Sound level limits in the MoE guidelines2 depend on the acoustical classification of the area as

Class 1, 2 or 3.

Class 1 Area (Urban) 'an area with an acoustical environment typical of a

major urban area, where the background noise is dominated by urban hum (primarily

road traffic noise)'

Class 2 Area (Urban) 'an area with an acoustical environment that has qualities

representative of both Class 1 and Class 3 Areas, and in which a low ambient sound

level, normally occurring between 23:00 and 07:00 hours in Class 1 areas, will

typically be realised as early as 19:00 hours.

Class 3 Area (Rural) 'acoustical environment that is dominated by natural

sounds having little or no road traffic ….'

In the vicinity of the Dewdney Mountain Farms quarry, the surrounding acoustical

environment is dominated by natural sounds, with little road traffic and, hence, is considered

as a Class 3 Area (Rural).

For a Class 3 Area (Rural), the applicable outdoor sound limits at noise sensitive receptors,

based on 1-hour equivalent sound levels, LEQ, are either the exclusion noise limits given in

Table 3, or higher limits if established by an assessment of background noise. Background

sound assessment was not carried out, hence the levels given in Table 3 for a Class 3 Area

(Rural) are taken as the sound level limits for the purpose of this assessment for all critical

receptors.

Table 3: Exclusion Sound Level Limits by Time of Day2

Time of Day Class 3 Area (Rural) LEQ (dBA)

07:00 – 19:00 45

19:00 – 23:00 40

23:00 – 07:00 40



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7.0 Impact Assessment

Tables 4.x (x = extraction area) compares the estimated sound levels at the selected critical

noise sensitive receptors with the sound level limits given in Table 3 for each extraction area.

These are “worst case” comparisons, comparing the sound level limits to the estimated sound

levels: (i) with all permitted equipment operating simultaneously, (ii) in locations where the

impact is a maximum, and, (iii) with the noise mitigation set out in Section 5.0. Both day and

night time operations are assessed in Tables 4.x.

From Tables 4.x it is concluded that with implementation of the noise mitigation measures

identified in Section 5, noise emissions from the Dewdney Mountain Farms quarry operations

are in compliance with MoE sound level limits. Once the Dewdney Mountain Farms quarry is

operational, however, it is recommended that a further assessment be carried out for

verification.

Table 4.1: Acoustic Assessment Summary Table, Extraction Area 1

Point of Reception

ID

Day 07:00 to 19:00 Full Operation

Night 19:00 to 07:00

Limited Loading and Shipping

Estimated Sound Level

at POR (worst case)

Sound Level Limit

07:00-19:00 (worst case)

Compliance With

Performance Limit


at POR (worst case)

Sound Level Limit

19:00-07:00 (worst case)

Compliance With

Performance Limit

R1

39

45 dBA

Yes 29

40 dBA

Yes

R2

39

45 dBA

Yes 29

40 dBA

Yes

R3

45

45 dBA

Yes 35

40 dBA

Yes

R5

42

45 dBA

Yes 32

40 dBA

Yes

R10

38

45 dBA

Yes 26

40 dBA

Yes

R12

35

45 dBA

Yes 22

40 dBA

Yes



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Point of Reception

ID


Night 19:00 to 07:00



at POR (worst case)

Sound Level Limit

07:00-19:00 (worst case)

Compliance With

Performance Limit


at POR (worst case)

Sound Level Limit

19:00-07:00 (worst case)

Compliance With

Performance Limit

R1

35

45 dBA

Yes 24

40 dBA

Yes

R2

36

45 dBA

Yes 25

40 dBA

Yes

R3

45

45 dBA

Yes 34

40 dBA

Yes

R5

44

45 dBA

Yes 34

40 dBA

Yes

R10

39

45 dBA

Yes 27

40 dBA

Yes

R12

31

45 dBA

Yes 19

40 dBA

Yes


Point of Reception

ID


Night 19:00 to 07:00



at POR (worst case)

Sound Level Limit

07:00-19:00 (worst case)

Compliance With

Performance Limit


at POR (worst case)

Sound Level Limit

19:00-07:00 (worst case)

Compliance With

Performance Limit

R1

36

45 dBA

Yes 25

40 dBA

Yes

R2

37

45 dBA

Yes 27

40 dBA

Yes

R3

45

45 dBA

Yes 37

40 dBA

Yes

R5

45

45 dBA

Yes 35

40 dBA

Yes

R10

39

45 dBA

Yes 24

40 dBA

Yes

R12

30

45 dBA

Yes 18

40 dBA

Yes



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Table 4.4A: Acoustic Assessment Summary Table, Extraction Area 4A

Point of Reception

ID


Night 19:00 to 07:00



at POR (worst case)

Sound Level Limit

07:00-19:00 (worst case)

Compliance With

Performance Limit


at POR (worst case)

Sound Level Limit

19:00-07:00 (worst case)

Compliance With

Performance Limit

R1

37

45 dBA

Yes 23

40 dBA

Yes

R2

37

45 dBA

Yes 25

40 dBA

Yes

R3

43

45 dBA

Yes 34

40 dBA

Yes

R5

45

45 dBA

Yes 38

40 dBA

Yes

R10

38

45 dBA

Yes 24

40 dBA

Yes

R12

34

45 dBA

Yes 17

40 dBA

Yes

Table 4.4B: Acoustic Assessment Summary Table, Extraction Area 4B

Point of Reception

ID


Night 19:00 to 07:00



at POR (worst case)

Sound Level Limit

07:00-19:00 (worst case)

Compliance With

Performance Limit


at POR (worst case)

Sound Level Limit

19:00-07:00 (worst case)

Compliance With

Performance Limit

R1

37

45 dBA

Yes 20

40 dBA

Yes

R2

37

45 dBA

Yes 22

40 dBA

Yes

R3

41

45 dBA

Yes 32

40 dBA

Yes

R5

45

45 dBA

Yes 38

40 dBA

Yes

R10

37

45 dBA

Yes 19

40 dBA

Yes

R12

34

45 dBA

Yes 15

40 dBA

Yes



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Table 4.5A/6A: Acoustic Assessment Summary Table, Extraction Areas 5A and 6A

Point of Reception

ID


Night 19:00 to 07:00



at POR (worst case)

Sound Level Limit

07:00-19:00 (worst case)

Compliance With

Performance Limit


at POR (worst case)

Sound Level Limit

19:00-07:00 (worst case)

Compliance With

Performance Limit

R1

40

45 dBA

Yes 31

40 dBA

Yes

R2

45

45 dBA

Yes 36

40 dBA

Yes

R3

45

45 dBA

Yes 38

40 dBA

Yes

R5

43

45 dBA

Yes 32

40 dBA

Yes

R10

38

45 dBA

Yes 22

40 dBA

Yes

R12

31

45 dBA

Yes 20

40 dBA

Yes

Table 4.5B/6B: Acoustic Assessment Summary Table,

Extraction Areas 5B and 6B

Point of Reception

ID


Night 19:00 to 07:00



at POR (worst case)

Sound Level Limit

07:00-19:00 (worst case)

Compliance With

Performance Limit


at POR (worst case)

Sound Level Limit

19:00-07:00 (worst case)

Compliance With

Performance Limit

R1

36

45 dBA

Yes 29

40 dBA

Yes

R2

39

45 dBA

Yes 33

40 dBA

Yes

R3

45

45 dBA

Yes 40

40 dBA

Yes

R5

43

45 dBA

Yes 33

40 dBA

Yes

R10

38

45 dBA

Yes 22

40 dBA

Yes

R12

30

45 dBA

Yes 19

40 dBA

Yes



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Point of Reception

ID


Night 19:00 to 07:00



at POR (worst case)

Sound Level Limit

07:00-19:00 (worst case)

Compliance With

Performance Limit


at POR (worst case)

Sound Level Limit

19:00-07:00 (worst case)

Compliance With

Performance Limit

R1

35

45 dBA

Yes 23

40 dBA

Yes

R2

36

45 dBA

Yes 25

40 dBA

Yes

R3

44

45 dBA

Yes 36

40 dBA

Yes

R5

45

45 dBA

Yes 38

40 dBA

Yes

R10

38

45 dBA

Yes 23

40 dBA

Yes

R12

30

45 dBA

Yes 17

40 dBA

Yes



P a g e | 19


8.0 Conclusions and Recommendations

An acoustic assessment of operations at the Dewdney Mountain Farms quarry has been

conducted. These operations include excavation using a loaders and excavators, rock drilling,

crushing, screening and/or washing, truck loading and truck movements.

Compliance has been assessed using conservative assumptions, both with respect to the noise

sources and with respect to the background sound levels at receptors. It is concluded that,

providing the mitigation measures identified in Section 5 are implemented as recommended,

on-site noise generated by quarry operations is in compliance with the MoE noise limits as set

out in Publication NPC-232, Sound Level Limits for Stationary Sources in Class 3 (Rural)

Areas, October 1995.

Hugh Williamson, Ph.D., P.Eng.

Member, Canadian Acoustical Society



P a g e | 20


References

1. Ministry of Environment Publication NPC-233, Information to be Submitted for

Approval of Stationary Sources of Sound, October 1995.

2. Ministry of Environment Publication NPC-232, Sound Level Limits for Stationary

Sources in Class 3 (Rural) Areas, October 1995.

3. Ministry of Environment Publication NPC-205, Sound Level Limits for Stationary

Sources in Class 1 & 2 (Urban) Areas, October 1995.

4. Ministry of Environment, Sample Application Package, Basic Comprehensive

Certificate of Approval (Air and Noise), July 2009.

5. Ministry of Environment Publication NPC-104, Sound Level Adjustments, August

1978.

6. Ministry of Environment Publication NPC-115, Construction Equipment, August

1978.

7. International Standards Organization, Acoustics - Attenuation of Sound During

Propagation Outdoors, Part 2: General Method of Calculation, ISO 9613-2: 1996(E).



P a g e | 21


Appendix 1

Figures

Contents

Figure A1.1 Area Plan Showing the Dewdney Mountain Farms Quarry Figure A1.2 Site Plan, Dewdney Mountain Farms Quarry Figure A1.3 Zoning Plan Figure A1.4 Area 7, Processing and Main Entry Figure A1.5 Mitigation for Concrete Plant Figure A1.6 Operations in Extraction Area 1 Figure A1.7 Operations in Extraction Area 1 - Detail Figure A1.8 Operations in Extraction Area 2 Figure A1.9 Operations in Extraction Area 2 – Detail Figure A1.10 Operations in Extraction Area 3 – Detail Figure A1.11 Operations in Extraction Area 4A – Detail Figure A1.12 Operations in Extraction Area 4B – Detail Figure A1.13 Operations in Extraction Area 5A – Detail Figure A1.14 Operations in Extraction Area 5B – Detail Figure A1.15 Operations in Extraction Area 7 – Detail Figure A1.16 Example of Break in Berm at Secondary Entrance near R3 (if needed)



P a g e | 22


Figure A1.1 Area Plan (1 km & 5 km grids shown)

Site

North

Proposed

Quarry

True

North

R1 R2

R3 R4

R5

R6 R7

R10

R9

R8

R12

R11

Ledge Rd.

Bass Lake Rd.

Quarry Rd.

County Rd. 36

Tully Rd.

White Valley Rd.



P a g e | 23


Figure A1.2 Site Plan, Dewdney Mountain Farms Quarry – Showing Extraction Areas

290

285

285

285

305

exca

vatio

n lim

it pi

t bot

tom

inte

rmitt

ent s

tream

interm

ittent s

tream

dry

old beaver dam

old beaver dam

pond

pond

inte

rmitt

ent s

tream

inte

rmitte

nt s

tream

steel gate

steel gate

C15

C15

L29

L30

C16

L29

Crown

Crown

Crown

private

private

unopened R

A

private

L27

lotline

lotline

lotline

lotlin

e

C14

L29

L28

C14

L28

C16

C14

L30

open area

open area

open area

open area

open area

open area

open area

open area

intermittent pond

intermittent pond

C

exca vation limit pit b

ot tom

exca vation lim

it pit b

ot tom

Ledge R

oad

Ledge R

oad

exca

vatio

n lim

it pit b

ottom

exca

vatio

n lim

it pit b

otto

m

exca

vatio

n lim

it pit b

otto

m

exca

vatio

n lim

it pi

t bot

tom

exca vation lim

it pit b

ot tom

exca

vatio

n lim

it pi

t bot

tom

exca

vation lim

it pit b

otto

m

exca vation limit pit bot tom

excavation lim

it pit bot tom

298 296

294 292

290 288




exca

vatio

n lim

it pit b

otto

m

exca

vatio

n lim

it pit b

otto

m

29

0

300

298 296

294

302

292

294

298 296

300 302

298 296

304

300 302

300

302

298

300

302

304

306

310

30

8

30

8

31

0

31

0

31

0

31

2

31

4

31

0

31

2

298

296

300

302

304

296 298

292

290

290

292 2

90

288

290

288

294

hunting camp

hunting camp

License Boundary

License Boundary

Lice

nse

Boundary

License Boundary

Lice

nse

Bou

ndar

y

Lice

nse

Boundary

1

3

5

processing/storage area

scale

fuel storage

office/maint shop

scrap storage

unopened R

A

lotline

lotline

lotline

lotlin

e

28

8

290

2

4

6

1A

dug well with wooden walls

308

drainage outlet with silt fence

water drainage way

water drainage way







water drainage way

water drainage way

water drainage way

water drainage way

water drainage way

water drainage way


existing culvert

culvert

water drainage way

water drainage way

drainage outlet with

silt fence

scale house

Note: building locations conceptual only

7processing/storage area

end of township maintained road

UTM coord's

697948.7E

4945906.6N

UTM coord's

697790.8E

4945789.1N

UTM coord's

697230.7E

4945122.6N

UTM coord's

697324.5E

4944874.0N

UTM coord's

UTM coord's

698190.7E

4944497.9N

UTM coord's

698222.6E

4944409.5N

UTM coord's

698582.8E

4944508.5N

UTM coord's

698875.4E

4944590.2N

UTM coord's

698643.1E

4945147.0N

UTM coord's

698464.4E

4945726.3N

seepage

seepage

300

292

BM

BM

BM

285

290

295

300

305

295

285

300

285

290

285

285

exca vation lim

its

exca

vatio

n lim

its

exca

vatio

n lim

its

exca vation lim

its

exca vation limits

exca

vatio

n lim

its

exca vation lim

its

exca

vatio

n lim

its

excavation lim

its

exca vation limits

exca vation limits

exca vation limits

exca vation limits

exca

vatio

n lim

its

exca

vation lim

its

exca

vatio

n lim

its

exca

vatio

n lim

its

exca

vatio

n lim

its

294

294

292

298

296

300

294

30

8

30

8

secondary entrance

primary entrance

dug well with

stone walls

4A

> 550 m

from R5

4B

< 550 m

from R5

6 A

> 400 m

from R3

6 B

< 400 m

from R3

Concrete

Plant

R3

R5

5 A

> 400 m

from R3

5 B

< 400 m

from R3

697200

697200

697400

697400

697600

697600

697800

697800

698000

698000

698200

698200

698400

698400

698600

698600

698800

698800

699000

699000

699200

699200

4944400

4944400

4944600

4944600

4944800

4944800

4945000

4945000

4945200

4945200

4945400

4945400

4945600

4945600

4945800

4945800



P a g e | 24


Figure A1.3 Zoning Plan, Harvey Legend: RU = Rural, HL = Hazard Land, WS = Wilderness

Proposed Dewdney Mountain Farms Quarry



P a g e | 25


Figure A1.4 Area 7, Processing and Main Entry

Figure A1.5 Mitigation for Concrete Plant

Concrete Truck, spinning drum

Cement Powder Unloading

Blower

Cement Powder Barrier

5 m high, 12 m long

< or = 3 m from blower

Barrier for truck loading

5 m high, 20 m long

< or = 5 m from centre of truck

Concrete Plant Berm

5 m high, 20 m long

698490

698490

698500

698500

698510

698510

698520

698520

698530

698530

698540

698540

698550

698550

698560

698560

698570

698570

698580

698580

4944740

4944740

4944750

4944750

4944760

4944760

4944770

4944770

4944780

4944780

4944790

4944790

4944800

4944800

4944810

4944810

Acoustic Assessment of the Dewdney Mountain Farms Quarry REPORT Township of Galway, Cavendish and Harvey 13 September 2011

P a g e | 26


Figure A1.6 Operations in Extraction Area 1

285

285

excava

tion l

imit

pit botto

m

interm

ittent s

tream

dry

old beaver dam

steel gate

steel gate

C15

L29

private

lotline

C14

L29

open area

open area

intermittent pond

C

excava

tion l

imit p

it botto

m

Ledge R

oad

exc

ava

tion lim

it pit b

otto

m

exca

vatio

n lim

it pi

t bot

tom

excava

tion l

imit p

it botto

m

exc

ava

tion

limit p

it bottom

exc

ava

tion lim

it pit b

otto

m

290

310

308

308

310

310

312

310

312

296

292

290

290

292

290

288

290

288

294

hunting camp

Lice

nse B

oundary

Lice

nse

Bou

ndar

y

1

3

5

scale

fuel storage

office/maint shop

scrap storage

lotline

2

6






water drainage way

water drainage way

water drainage way

water drainage way

water drainage way

scale house



UTM coord's

698643.1E

4945147.0N

292

BM

BM

285

285

excava

tion l

imits

exca

vatio

n lim

its

excava

tion lim

its

excava

tion l

imits

exc

ava

tion lim

its

exc

ava

tion

limits

excava

tion l

imits

294

294

292

298

296

300

294

308

308

secondary entrance

R3

Day 45 dBA

Night 33 dBA


Loader

Loader

Excavator

Excavator

Rock Drill

Crusher in 1

Concrete Trucks Haul Rte

Skid Steer

Screen/Wash Plant in 1

5/6 A

> 400 m

from R3

5/6 B

< 400 m

from R3

Concrete

Plant



5 m high


5 m high

Concrete Plant Berm

5 m high

Crusher Barrier in 1

697500

697500

697600

697600

697700

697700

697800

697800

697900

697900

698000

698000

698100

698100

698200

698200

698300

698300

698400

698400

698500

698500

698600

698600

4944800

4944800

4944900

4944900

4945000

4945000

4945100

4945100

4945200

4945200

4945300

4945300

4945400

4945400

4945500

4945500

4945600

4945600


P a g e | 27


Figure A1.7 Operations in Extraction Area 1 - Detail

inte

rmitt

ent stre

am

dry

old beaver damC15

L29

open area

exca

vatio

n lim

it pi

t bo

ttom

excava

tion lim

it pit b

ottom

exca

vation li

mit

pit

bottom

290

290

288Li

cens

e Bou

ndar

y

1drainage outlet with silt fence


water drainage way

water drainage way

292

285

exca

vatio

n lim

its

exca

vation li

mits

excava

tion lim

its

294

Loader

Loader

Excavator

Excavator

Rock Drill

Crusher in 1

Skid Steer


Crusher Barrier in 1

697450

697450

697500

697500

697550

697550

697600

697600

697650

697650

697700

697700

697750

697750

697800

697800

697850

697850

697900

697900

697950

697950

698000

698000

4945000

4945000

4945050

4945050

4945100

4945100

4945150

4945150

4945200

4945200

4945250

4945250

4945300

4945300

4945350

4945350


P a g e | 28


Figure A1.8 Operations in Extraction Area 2

290

285

285

305

C15

private

private

L27

C15

lotline

lotline

lotlin

e

L28

C14

open area

open area

intermittent pond

Ledge R

oad

Ledge R

oad

excavation l imit pit bottom

298 296

294 292

290 288




exca

vatio

n l im

it pit b

otto

m

exca

vatio

n l im

it pit b

otto

m

29

0

300

298 296

294

302

292

294

298 296

300 302

298 296

304

300 302

300

302

298

300

302

304

306

310

310

290

288

License Boundary

License Boundary

Lice

nse

Boundary

1

3

scale

fuel storage

office/maint shop

scrap storage

lotline

lotline

lotlin

e

2

4

6

308

water drainage way

water drainage way

water drainage way

scale house



UTM coord's

698190.7E

4944497.9N

UTM coord's

698222.6E

4944409.5N

UTM coord's

698582.8E

4944508.5N

UTM coord's

698875.4E

4944590.2N

UTM coord's

698643.1E

4945147.0N

300

292

BM

BM

295

28

5

300

excavation

l imits

excavation l imits

excavation l imits

excavation l imits

excavation l imits

exca

vatio

n l im

its

308

primary entrance


Crusher in 2

Crusher Barrier in 2Rock Drill

Loader

Loader

Excavator

Excavator

Concrete Trucks Haul Rte

Skid Steer

R5

Day 44 dBA

Night 32 dBA

4A

> 550 m

from R5

4B

< 550 m

from R5Screen/Wash Plant in 2

5/6 A

> 400 m

from R3

5/6 B

< 400 m

from R3

Concrete

Plant



5 m high


5 m high

Concrete Plant Berm

5 m high

697600

697600

697800

697800

698000

698000

698200

698200

698400

698400

698600

698600

698800

698800

4944400

4944400

4944600

4944600

4944800

4944800

4945000

4945000

4945200

4945200


P a g e | 29



285

intermittent pond

excavation limit pit bottom


300

298 296

294

302

292

2

water drainage way

UTM coord's

698222.6E

4944409.5N

excavation limits

Crusher in 2

Crusher Barrier in 2Rock Drill

Loader

Loader

Excavator

Excavator

Skid Steer


697600

697600

697650

697650

697700

697700

697750

697750

697800

697800

697850

697850

697900

697900

697950

697950

698000

698000

698050

698050

698100

698100

698150

698150

4944400

4944400

4944450

4944450

4944500

4944500

4944550

4944550

4944600

4944600

4944650

4944650

4944700

4944700

4944750

4944750

4944800

4944800


P a g e | 30



305

lotline

306

310

Lice

nse

Boundary

scale

fuel storage

office/maint shop

scrap storage

lotline

6 3

08

scale house



BM

300

exca

vatio

n lim

its

Concrete Truck, spinning drumConcrete Trucks Haul Rte

4B

< 550 m

from R5

5/6 A

> 400 m

from R3

Concrete

Plant



5 m high


5 m high

Concrete Plant Berm

5 m high

Skid Steer

Rock Drill

Loader

Excavator

Loader Excavator

Berm or Lift face

698150

698150

698200

698200

698250

698250

698300

698300

698350

698350

698400

698400

698450

698450

698500

698500

698550

698550

698600

698600

698650

698650

698700

698700

4944700

4944700

4944750

4944750

4944800

4944800

4944850

4944850

4944900

4944900

4944950

4944950

4945000

4945000

4945050

4945050

4945100

4945100Boundary Berm

5 m high

3


P a g e | 31


Figure A1.11 Operations in Extraction Area 4A - Detail

290

305


exca

vatio

n lim

it pit b

otto

m

298 296

300 302

300

302

298

300

302

304

306

scale

fuel storage

office/maint shop

scrap storage

4

308

water drainage way

scale house



UTM coord's

698190.7E

4944497.9N

UTM coord's

698875.4E

4944590.2N

295

300

exca

vatio

n lim

its

excavation limits

exca

vatio

n lim

its

primary entrance


R5

Day 45 dBA

Night 38 dBA

4A

> 550 m

from R5

4B

< 550 m

from R5

Concrete

Plant


Blower


5 m high, 12 m long

< or = 3 m from blower


5 m high, 20 m long


Skid SteerRock Drill

Loader

Excavator

Loader

Excavator Berm or Lift face

Concrete Plant Berm

5 m high, 20 m long

698250

698250

698300

698300

698350

698350

698400

698400

698450

698450

698500

698500

698550

698550

698600

698600

698650

698650

698700

698700

698750

698750

698800

698800

4944500

4944500

4944550

4944550

4944600

4944600

4944650

4944650

4944700

4944700

4944750

4944750

4944800

4944800

4944850

4944850

4944900

4944900


P a g e | 32


Figure A1.12 Operations in Extraction Area 4B - Detail

lotlineopen area

Ledge R

oad


300

302

298

300

302

lotline

UTM coord's

698875.4E

4944590.2N

295

300

excavation limits

R5

Day 45 dBA

Night 37 dBA

4B

< 550 m

from R5

Berm or Lift face

Loader

Rock Drill

Excavator

698650

698650

698700

698700

698750

698750

698800

698800

698850

698850

698900

698900

4944550

4944550

4944600

4944600

4944650

4944650

4944700

4944700


P a g e | 33


Figure A1.13 Operations in Extraction Area 5A - Detail

excavation limit p

it bottom

exca

vatio

n lim

it pi

t bot

tom

exc

ava

tion lim

it pit b

otto

m

exc

ava

tion lim

it pit b

otto

m

308

310

312

314

296 298


culvert

water drainage way


UTM coord's

BM

300

excavation limits

exc

ava

tion lim

its

dug well with

stone walls

5 A

> 400 m

from R3

5 B

< 400 m

from R3

Excavator

Loader

Excavator

Loader

Skid Steer

Rock Drill

Berm or Lift face

698100

698100

698150

698150

698200

698200

698250

698250

698300

698300

698350

698350

698400

698400

698450

698450

4945550

4945550

4945600

4945600

4945650

4945650

4945700

4945700

4945750

4945750

4945800

4945800

Boundary Berm 5 m high


P a g e | 34


Figure A1.14 Operations in Extraction Area 5B – Detail

steel gate

steel gate

private

C14

L29

open area

intermittent pond

Ledge R

oad

exc

ava

tion lim

it pit b

otto

m

308

310

312

314

310

312 hunting camp5



exc

ava

tion lim

its

308

secondary entrance

R3

Day 45 dBA

Night 41 dBA

5 A

> 400 m

from R3

5 B

< 400 m

from R3

Loader

Excavator

Skid Steer

Berm or Lift face

698300

698300

698350

698350

698400

698400

698450

698450

698500

698500

698550

698550

698600

698600

698650

698650

4945450

4945450

4945500

4945500

4945550

4945550

4945600

4945600

4945650

4945650

Boundary Berm 5 m high


P a g e | 35


Figure A1.15 Operations in Extraction Area 7 – Detail

305

exca

vatio

n lim

it pit b

otto

m

304

306

308

7exca

vatio

n lim

its


Concrete

Plant


Blower


5 m high, 12 m long

< or = 3 m from blowerBarrier for truck loading

5 m high, 20 m long


Concrete Plant Berm

5 m high, 20 m long

Rock Drill

Excavator

Loader

Skid Steer

Berm or Lift face

6 m high

698500

698500

698550

698550

698600

698600

698650

698650

698700

698700

698750

698750

4944750

4944750

4944800

4944800

4944850

4944850

4944900

4944900


P a g e | 36


Figure A1.16 Example of Break in Berm at Secondary Entrance near R3 (if needed)

steel gate

private

C14

L29

open area

intermittent pond

Ledge R

oad

excavatio

n lim

it pit b

otto

m

308

310

310

312 hunting camp


excavatio

n lim

its

308

Secondary Entrance

R3

Day 44 dBA

Night 37 dBA

6 B

< 400 m

from R3

5 B

< 400 m

from R3

Boundary Berm

Boundary Berm

698350

698350

698400

698400

698450

698450

698500

698500

698550

698550

698600

698600

698650

698650

4945350

4945350

4945400

4945400

4945450

4945450

4945500

4945500

4945550

4945550


P a g e | 37


Appendix 2

Acoustic Modeling Details

Modeling Notes:

1. Acoustic model developed uses Cadna-A software, Version 4.1.137.

2. Sound propagation is modeled according to ISO 9613-2: 1996(E).

3. So that worst case is represented in the modelling, all operations are assumed to take place at the original surface elevation.

4. The only significant receptors in terms of any need for mitigation are R3 and R5. The worst cases shown for each phase are situations where the equipment is closest to either R3 or R5.


P a g e | 38


Appendix 2 Table A2.1 Calculation Configuration


P a g e | 39


Appendix 2 Table A2.2 Point of Reception Location Table

Name ID Height Coordinates, ground

Above Ground

X Y Z

(m) (m) (m) (m)

#2413 Hunting Camp, Ritchie R1* 1.5 697672 4946558 292.0

Hunting Camp, Ledge Rd. R2* 1.5 698335 4946466 296.1

#2423 Hunting Camp R3* 1.5 698666 4945500 315.0

#2373 Hunting Camp, isolated R4 1.5 699666 4945194 317.0

#2287 Hunting Camp R5* 1.5 699083 4944477 306.0

#2183 Ledge Rd., Hunting Camp R6 1.5 699433 4943532 302.0

#2184 Ledge Rd., Hunting Camp R7 1.5 699316 4943440 301.7

Residence, Tully Rd. R8 1.5 697364 4942835 259.9

Hunting Camp, isolated R9 1.5 697085 4943509 267.0

Hunting Camp, isolated R10* 1.5 696887 4943804 257.0

Hunting Camp, White Valley Rd. R11 1.5 695101 4944779 273.7

Hunting Camp, Bass Lake Rd. R12* 1.5 695589 4945757 262.0

* Indicates a critical receptor for analysis purposes.

Acoustic Assessment of the Dewdney Mountain Farms Quarry ACOUSTIC ASSESSMENT REPORT


P a g e | 40


Appendix 2

Table A2.3 Point Sources

Name Result. PWL Lw / Li Tonal Operating Time Direct. Height

Day Evening

Night Type Correction Day Special Night

(dBA) (dBA) (dBA) (dBA) (min/Hr) (min/Hr) (min/Hr) (m)

Excavator 1 115.2 115.2 115.2 Lw 0 60 0 0 (none) 3.0

Excavator 2 115.2 115.2 115.2 Lw 0 60 0 0 (none) 3.0

Loader 1 109.9 109.9 109.9 Lw 0 60 0 60 (none) 3.0

Loader 2 109.9 109.9 109.9 Lw 0 60 0 0 (none) 3.0

Skid Steer 108.9 108.9 108.9 Lw 0 60 0 60 (none) 1.5

Rock Drill 118.6 118.6 118.6 Lw 0 60 0 0 (none) 2.0

Crushing plant 120.5 120.5 120.5 Lw 0 60 0 0 (none) 3.0

Screen/Wash Plant 111.3 111.3 111.3 Lw 0 60 0 0 (none) 3.0

Concrete Truck, mixing 112.3 112.3 112.3 Lw 0 40 0 0 (none) 3.0

Cement Powder Unloading 123.7* 123.7* 123.7* Lw 5 20 0 0 (none) 2.0 * Includes tonal correction

Table A2.4 Line Sources

Name Point Source PWL Numbers of vehicles per hour Modelling Speed

Day Evening Night Day Evening Night

(dBA) (dBA) (dBA) (km/h)

Concrete Trucks Haul Rte 110.1 110.1 110.1 8 - 0 moving point source 20

Trucks Haul Rte 110.1 110.1 110.1 8 - 4 moving point source 20



P a g e | 41


Appendix 2

Table A2.5 Noise Source Library

ID Type Spectra (dB) Source*

31.5 63 125 250 500 1000 2000 4000 8000 A lin

Loader Lw 103.4 110.4 114.1 113.6 107.1 104.1 97.2 91.2 83.6 109.9 118.5 Measured by HWA

Excavator_Dim_St Lw 106.4 115.6 114.4 114.8 109.8 109.9 109.1 103.1 93.7 115.2 121.1 Measured by HWA

Skid_steer Lw 103.6 119.4 108.1 109.3 106.7 103.2 100.3 95.7 86.3 108.9 120.5 Measured by HWA

Rockdrill_TH Lw 111.2 110.6 112.4 108.9 108.7 109.3 113.6 112.2 109.9 118.6 120.6 Measured by HWA

Crusher_73 Lw 114.4 118.3 120 117.5 117.9 116.2 113.1 105.3 94.9 120.5 125.8 Measured by HWA

Screening_Plant_2 Lw 109.6 115.3 118.4 108.8 107.4 106.2 103.7 96.7 90.6 111.3 121.2 Measured by HWA

HWYTruck_Slow58 Lw 115.9 112.7 110.2 101.6 101.4 105.0 104.2 97.6 103.5 110.1 119.0 Measured by HWA

Ready_Mix_High Lw 115.5 124.0 117.8 106.2 109.9 106.2 105.0 100.1 89.3 112.3 125.7 Measured by HWA

P_Cement_Unload Lw 104.1 107.9 120.3 116.2 109.5 110.2 111.8 113.6 104.6 118.7 123.4 Measured by HWA

* Measured by Hugh Williamson Associates at a similar facility or in similar circumstances in Ontario.



P a g e | 42


Appendix 2

Table A2.6.1 Point of Reception Impacts by Source for Worst Cases, Day, Extraction Area 2

R1 R2 R3 R5 R10 R12

dBA dBA dBA dBA dBA dBA

Extraction Area 1

Concrete Truck, spinning drum 22.2 24.1 34.3 34.7 14.6 16.1

Cement Powder Unloading 25.0 27.1 36.0 31.6 25.2 18.4

Crusher 35.2 34.3 38.7 34.5 35.7 32.5

Screen/Wash Plant 24.4 25.0 29.4 25.7 26.4 23.5

Loader 27.4 27.3 31.3 24.6 22.7 19.8

Loader 27.6 27.4 31.2 24.5 22.6 20.0

Skid Steer 22.3 22.7 28.9 23.4 20.5 15.7

Excavator 30.7 30.6 35.6 28.8 26.6 22.9

Excavator 30.3 30.6 36.1 29.2 26.6 22.6

Rock Drill 28.6 29.1 36.3 28.9 25.4 20.1

Concrete Trucks Haul Rte 11.6 14.1 29.6 32.2 10.5 4.3

Trucks Haul Rte 21.5 22.3 34.1 33.5 20.4 14.5

Total 39 39 45 42 38 35



P a g e | 43


Appendix 2


R1 R2 R3 R5 R10 R12


Extraction Area 2



Crusher 31.6 31.9 38.3 38.1 36.9 27.7


Loader 21.1 21.9 30.7 29.9 25.1 17.0

Loader 21.3 22.1 30.9 29.7 25.1 17.1

Skid Steer 18.9 19.7 27.2 26.3 19.9 14.2

Excavator 24.3 25.2 35.8 34.4 28.5 19.9

Excavator 24.4 25.3 36.0 34.7 28.3 19.8

Rock Drill 23.0 24.1 36.8 33.9 26.9 17.6


Trucks Haul Rte 17.2 18.9 32.6 33.7 19.3 11.2

Total 35 36 45 44 39 31



P a g e | 44


Appendix 2


R1 R2 R3 R5 R10 R12


Extraction Area 3



Crusher 31.6 31.9 35.0 38.1 36.9 27.7


Loader 22.5 24.3 34.0 32.3 22.2 16.3

Loader 22.7 24.4 34.0 31.7 22.1 16.4

Skid Steer 20.0 21.7 31.6 28.2 19.3 13.5

Excavator 26.0 28.2 38.4 36.2 25.2 19.3

Excavator 25.9 28.0 38.3 37.0 25.6 19.2

Rock Drill 24.9 26.7 35.8 35.8 23.3 16.9


Trucks Haul Rte 16.2 18.3 30.0 33.4 15.5 8.9

Total 36 37 45 45 39 30



P a g e | 45


Appendix 2

Table A2.6.4A Point of Reception Impacts by Source for Worst Cases, Day, Extraction Area 4A

R1 R2 R3 R5 R10 R12


Extraction Area 4A



Crusher 35.2 34.3 33.6 33.5 35.7 32.5


Loader 20.6 22.4 31.2 34.4 22.1 15.2

Loader 20.7 22.6 31.5 34.5 21.9 15.2

Skid Steer 17.7 19.6 29.2 32.8 18.7 12.0

Excavator 24.0 26.0 35.7 37.5 25.4 18.0

Excavator 23.9 25.8 35.3 38.0 25.6 18.0

Rock Drill 22.2 24.5 36.1 34.7 23.3 15.3


Trucks Haul Rte 12.6 15.0 27.5 33.4 12.7 5.6

Total 37 37 43 45 38 34



P a g e | 46


Appendix 2

Table A2.6.4B Point of Reception Impacts by Source for Worst Cases, Day, Extraction Area 4B

R1 R2 R3 R5 R10 R12


Extraction Area 4B



Crusher 35.2 34.3 33.6 33.3 35.7 32.5


Loader 19.9 22.0 30.8 36.2 19.0 14.2

Loader - - - - - -

Skid Steer - - - - - -

Excavator 23.1 25.4 35.2 39.0 21.6 17.0

Excavator - - - - - -

Rock Drill 21.1 23.7 35.2 37.5 19.2 14.1


Trucks Haul Rte 12.4 14.9 27.5 34.6 12.3 5.3

Total 37 37 41 45 37 34

Note: Reduced operation in this area



P a g e | 47


Appendix 2

Table A2.6.5A/6A Point of Reception Impacts by Source for Worst Cases, Day, Extraction Areas 5A & 6A

R1 R2 R3 R5 R10 R12


Extraction Areas 5A and 6A



Crusher 31.6 31.9 35.0 38.1 36.9 27.7


Loader 29.1 33.5 34.9 25.1 19.0 17.3

Loader 29.3 34.8 34.6 24.9 18.8 17.2

Skid Steer 26.3 30.2 30.9 21.6 15.9 14.1

Excavator 33.2 38.6 36.4 28.3 22.1 20.2

Excavator 33.3 39.5 36.3 28.3 21.9 20.1

Rock Drill 32.6 37.3 34.3 26.0 20.2 17.9


Trucks Haul Rte 23.1 27.0 36.9 33.5 17.2 12.6

Total 40 45 45 43 38 31



P a g e | 48


Appendix 2

Table A2.6.5B/6B Point of Reception Impacts by Source for Worst Cases, Day, Extraction Areas 5B & 6B

R1 R2 R3 R5 R10 R12


Extraction Areas 5B and 6B



Crusher 31.6 31.9 35.0 38.1 36.9 27.7


Loader 27.1 30.9 36.4 26.1 19.2 16.6

Loader - - - - - -

Skid Steer 23.8 27.6 35.5 24.4 16.2 13.3

Excavator 30.9 34.9 41.3 30.9 22.5 19.6


Rock Drill - - - - - -


Trucks Haul Rte 21.2 24.7 37.0 33.4 16.6 11.5

Total 36 39 45 43 38 30




P a g e | 49


Appendix 2


R1 R2 R3 R5 R10 R12


Extraction Area 7



Crusher 31.6 31.9 35.0 38.1 36.9 27.7


Loader 21.4 23.6 33.8 36.1 21.0 15.0

Loader - - - - - -

Skid Steer 18.2 20.4 31.1 33.1 18.0 11.9


Excavator 24.6 27.0 38.1 38.4 24.3 17.8

Rock Drill 22.7 25.6 38.9 36.5 14.6 14.9


Trucks Haul Rte 8.9 11.5 25.5 29.1 6.0 1.5

Total 35 36 44 45 38 30


HUGH WILLIAMSON ASSOCIATES INC. Ottawa, Ontario, Canada

Postal Address: PO Box 74056, RPO Beechwood, Ottawa, Ontario, K1M 2H9, Canada

Phone/Fax: (613) 747 0983, Email: [email protected]

http://www.hwacoustics.ca

RESUMÉ: Dr. HUGH WILLIAMSON, P.Eng.

QUALIFICATIONS: Ph.D. Mechanical Engineering, University of New South Wales, 1972

B.Sc. Mechanical Engineering, (with Distinction), University of Alberta, 1967

Member, Professional Engineers, Ontario

Member, Canadian Acoustical Association

KEY

COMPETENCIES: Environmental noise and vibration assessments, Certificates of Approval. Noise

assessment for land use planning

Architectural and building acoustics, acoustics of office spaces, meeting rooms,

auditoriums and studios, noise and vibration control of building mechanical

services.

Industrial noise and vibration assessment and control.

Transportation noise and vibration.

PROFESSIONAL EXPERIENCE:

Hugh Williamson is a professional engineer with many years of experience in the measurement,

analysis and control of noise and vibration. Hugh Williamson Associates was incorporated in 1997 and

provides consulting services in architectural, building, industrial, transportation and environmental

acoustics and vibration. Clients include architects, engineering firms, industrial firms and government

departments. Prior to establishing Hugh Williamson Associates, his career included extensive periods

in industry as well as university level research and teaching. He is a former Director of the Acoustics

and Vibration Unit at the Australian Defence Force Academy. He has published over 50 engineering

and scientific papers and has been an invited speaker on noise and vibration at national and

international conferences. He has more than 20 years of experience as a consultant.

CLIENT LIST:

Hugh Williamson Associates provides consulting services to large and small clients including: National

Research Council, National Capital Commission, J. L. Richards & Associates, Trow Associates, HOK

Urbana Architects, Genivar, Nasittuq Corporation, PWGSC, R. W. Tomlinson, Bot Construction and

Miller Paving.