cairns shipping development projecteisdocs.dsdip.qld.gov.au/cairns shipping development/revised...

CAIRNS SHIPPING DEVELOPMENT PROJECT

Revised Draft Environmental Impact Statement

APPENDIX J: Assessment of Materials Proposed for Dredging Report (2016)

16 January 2017

ADDITIONAL STUDIES - DREDGED MATERIALS

Cairns Shipping Development Project

RE

PO

RT

Report Number. 1546223-008-R-Rev2

Distribution:

1 Electronic Copy - Flanagan Consulting Group

16 January 2017 Report No. 1546223-008-R-Rev2 i

Table of Contents

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

2.0 GROUND MODEL ..................................................................................................................................................... 1

3.0 VOLUMES AND DISTRIBUTION OF MATERIALS .................................................................................................. 2

4.0 ACID SULFATE SOILS (ASS) .................................................................................................................................. 3

5.0 STIFF CLAYS ............................................................................................................................................................ 3

6.0 SANDS....................................................................................................................................................................... 3

7.0 IMPORTANT INFORMATION .................................................................................................................................... 4

FIGURES

Figure F001 – Plan of Channel - Sheet 1

Figure F002 – Plan of Channel - Sheet 2

Figures F003 to F012 – Channel Cross Sections

APPENDICES

APPENDIX A Important information relating to this report

16 January 2017 Report No. 1546223-008-R-Rev2 1

1.0 INTRODUCTION

Flanagan Consulting Group (FCG) previously commissioned Golder Associates Pty Ltd (Golder) to provide

geotechnical advice as part of the Revised Draft Environmental Impact Statement for the Cairns Shipping

Development (CSD) Project. Geotechnical input related to the assessment of the values and constraints

associated with the materials proposed to be dredged included the following:

Assessment of subsurface conditions likely to be encountered in the proposed dredging;

Assessment of the geotechnical properties of the materials to be dredged;

Assessment of the ASS properties of the materials to be dredged.

Preparation of a 3D model of ground conditions relevant to the proposed dredging.

The results of the previous studies were presented in Golder report 1546223-006-R-Rev1 in October 2016.

Subsequent to the studies Golder was commissioned to re-assess the materials likely to be encountered

during dredging based on revised channel design information provided by Ports North.

This report presents the results of our assessment. Note that this report should be read in conjunction with

our previous report, and that where relevant this report supersedes the previous report.

2.0 GROUND MODEL

As outlined in our previous report an interpreted 3-dimensional (3D) model of ground conditions was

developed using the VulcanTM geological modelling software. The main feature of the model was the top of

stiff clay, with this boundary surface being equivalent to the base of soft clay where a soft clay layer is

present or, coincident with the sea bed where stiff clay occurs at sea bed level.

The modelled surface of the stiff clay was used in combination with the bathymetric survey information and

channel design information provided to estimate the expected volumes of different materials for maintenance

and capital dredging.

The initial model was based on the following:

Bathymetric survey – “Composite survey data.dxf” provided by email to Golder by BMT JFA on 2

August 2016;

Capital Channel design – “Rev B Revised Draft EIS Channel design Model.dxf” provided by email to

Golder by BMT JFA on 2 August 2016;

Maintenance Channel design – “Existing channel design 2016-08-02.dxf” provided to Golder by BMT

JFA on 2 August 2016;

The model has been revised based on the following:

Post 2016 bathymetry – provided by email from Ports North on 27 October 2016; and

Ports North mark up of channel cross sections prepared by Golder at 250 m intervals along the channel

– provided in emails from Ports North on 28 November, 30 November and 12 December, 2016.

Based on the revised model, plans showing where dredging is proposed and the materials expected to be

encountered in the proposed capital dredging are shown on Figures F001 to F002.

Cross sections of the channel showing the design dredging profiles and the materials expected to be

encountered in the dredging are shown on Figures F003 to F012.


3.0 VOLUMES AND DISTRIBUTION OF MATERIALS

Based on the revised model the re-calculated volumes of materials to be dredged are summarised below.

Table 1: Volumes of Materials to be Dredged

Material Type Volume (m3)

Soft clays 698,755

Stiff clays 92,309

Total 791,064

The distribution of materials within the capital dredging was also calculated by chainage and is summarised below.

Table 2: Distribution of Materials to be Dredged by Chainage

Chainage Volume of Soft

Clays (m3) Volume of Stiff

Clays (m3) Total Volume

(m3)

11000-11500 42558 2783 45340

11500-12000 356 0 356

12000-12500 880 2316 3196

12500-13000 21346 2160 23506

13000-13500 13812 579 14391

13500-14000 3337 1923 5260

14000-14500 6419 9541 15960

14500-15000 12923 30687 43610

15000-15500 31136 1280 32416

15500-16000 44424 15965 60390

16000-16500 47187 2997 50184

16500-17000 34641 380 35021

17000-17500 43571 6213 49784

17500-18000 57749 12499 70248

18000-18500 89979 2382 92361

18500-19000 77999 43 78041

19000-19500 71070 485 71555

19500-20000 34862 1 34863

20000-20500 16182 16 16198

20500-21000 18504 57 18562

21000-21500 10539 2 10541

21500-22000 8018 0 8018

22000-22500 4516 0 4516

22500-23000 1192 0 1192

23000-23500 1478 0 1478

23500-24000 3007 0 3007

24000-24500 1071 0 1071

Totals 698755 92309 791064


4.0 ACID SULFATE SOILS (ASS)

Our previous report indicated the following with regards to ASS materials that may be encountered in the

capital dredging:

The soft clays have potential acidity (chromium reducible sulfur) levels which would classify them as

PASS. The total volume of these materials has been re-calculated as 698,755 m3.

Most of the PASS materials have sufficient neutralising capacity to classify them as self-neutralising

PASS (SNP). The volume of these SNP materials has been re-calculated as 450,863 m3.

The locations where PASS materials (without sufficient neutralising capacity) have been identified are

summarised below. The volume of these materials has been re-calculated as 247,892 m3 made up as

follows:

Main Swing Basin – 42,914 m3

Crystal Swing Basin – 8,456 m3

CH14750-CH15250 - 31,136 m3

CH15250-CH16250 - 91,611 m3

CH17500-CH18000 - 73,775 m3

PASS was also detected at isolated investigation locations beyond CH19250 but at depths of 2m to 3m

below the base of the channel. These results have not been considered further as these materials will not

be disturbed by the proposed capital dredging. The stiff clays have been confirmed as non-ASS.

5.0 STIFF CLAYS

As indicated in Figures F001 to F002 and in Table 2, the locations where more significant volumes of stiff

clays are likely to be encountered in the capital dredging are summarised below:

CH14000-CH14500 – 9,541 m3

CH14500-CH15000 – 30,687 m3

CH15500-CH16000 – 15,965 m3

CH17000-CH17500 – 6,213 m3

CH17500-CH18000 – 12,499 m3

The volume of stiff clays encountered during capital dredging in the outer channel beyond CH18500 is likely

to be ~600m3.

6.0 SANDS

As outlined in our previous report, sands were encountered at a number of inner harbour investigation

locations (i.e. G1, G3, G4, G5 and G21), plus at CH 17500 (i.e. G10). The depth of the sands ranged from

about 0.2 to 0.75 m, however the extent of the sands has not been assessed. It is noted that shell contents

within the sands were inferred to range from about 20 to 40 % of the total mass based on visual

observations.


7.0 IMPORTANT INFORMATION

Your attention is drawn to the document – “Important information relating to this report” which is included as

an Appendix to this report. The statements presented in this document are intended to advise you of what

your realistic expectations of this report should be. The document is not intended to reduce the level of

responsibility accepted by Golder Associates, but rather to ensure that all parties who may rely on this report

are aware of the responsibilities each assumes in so doing. We would be pleased to answer any questions

about this important information from the reader of this report.

GOLDER ASSOCIATES PTY LTD

Malcolm Cook

Principal Geotechnical Engineer

MSC/PKS/ow

A.B.N. 64 006 107 857

Golder, Golder Associates and the GA globe design are trademarks of Golder Associates Corporation.

J:\Geo\2015\1546223 - FCG - EIS Stage 1 - Port Development\CORR OUT\Stage 1B Marine\1546223-008-R-Rev2-Additional Studies

Dredged Materials.docx

16 January 2017 Report No. 1546223-008-R-Rev2

FIGURES

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SUR

EMEN

T D

OES

NO

T M

ATC

H W

HAT

IS S

HO

WN

, TH

E SH

EET

SIZE

HAS

BEE

N M

OD

IFIE

D F

RO

M: I

SO A

3

1:2,000

1000

METRES

50

VERT.

HORIZ.

0

1:400

10 20

METRES

ELEV

ATIO

N (m

)

CH 14250.0

-25

-20

-15

-10

-5

0

5

-25

-20

-15

-10

-5

0

50 50 1000-50-100-150

0.0 50.0 100.00.0-50.0-100.0-150.0

ELEV

ATIO

N (m

)

CH 14000.0

-20

-15

-10

-5

0

5

10

-20

-15

-10

-5

0

5

100 50 1000-50-100-150

0.0 50.0 100.00.0-50.0-100.0-150.0

ELEV

ATIO

N (m

)

CH 13750.0

-25

-20

-15

-10

-5

0

5

-25

-20

-15

-10

-5

0

50 50 1000-50-100

0.0 50.0 100.00.0-50.0-100.0

ELEV

ATIO

N (m

)

CH 13500.0

-25

-20

-15

-10

-5

0

5

-25

-20

-15

-10

-5

0

50 50 1000-50-100

0.0 50.0 100.00.0-50.0-100.0

ELEV

ATIO

N (m

)

CH 13250.0

-25

-20

-15

-10

-5

0

5

-25

-20

-15

-10

-5

0

50 50 1000-50-100

0.0 50.0 100.00.0-50.0-100.0

ELEV

ATIO

N (m

)

CH 13000.0

-25

-20

-15

-10

-5

0

5

-25

-20

-15

-10

-5

0

50 50 1000-50-100

0.0 50.0 100.00.0-50.0-100.0


LEGEND


SOFT CLAY

STIFF CLAY




025

mm


FIGURE

F0052

2016-08-25

GPG

PB

MC

MC



PROJECT NO. REV.

PROJECTCLIENT

CONSULTANT

DESIGNED

PREPARED

REVIEWED

APPROVED

YYYY-MM-DD

Path

: \\g

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r.gds

\gap

\Bris

bane

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mat

ics\

FLAN

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File

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IF T

HIS

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T D

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NO

T M

ATC

H W

HAT

IS S

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, TH

E SH

EET

SIZE

HAS

BEE

N M

OD

IFIE

D F

RO

M: I

SO A

3

1:2,000

1000

METRES

50

VERT.

HORIZ.

0

1:400

10 20

METRES

ELEV

ATIO

N (m

)

CH 15250.0

-25

-20

-15

-10

-5

0

5

-25

-20

-15

-10

-5

0

50 50 1000-50-100-150

0.0 50.0 100.00.0-50.0-100.0-150.0

ELEV

ATIO

N (m

)

CH 15000.0

-25

-20

-15

-10

-5

0

5

-25

-20

-15

-10

-5

0

50 50 1000-50-100-150

0.0 50.0 100.00.0-50.0-100.0-150.0

ELEV

ATIO

N (m

)

CH 14750.0

-25

-20

-15

-10

-5

0

5

-25

-20

-15

-10

-5

0

50 50 1000-50-100-150

0.0 50.0 100.00.0-50.0-100.0-150.0

ELEV

ATIO

N (m

)

CH 14500.0

-20

-15

-10

-5

0

5

10

-20

-15

-10

-5

0

5

100 50 1000-50-100-150

0.0 50.0 100.00.0-50.0-100.0-150.0

30.00 m

30.00 m


LEGEND


SOFT CLAY

STIFF CLAY




025

mm


FIGURE

F0062

2016-08-25

GPG

PB

MC

MC



PROJECT NO. REV.

PROJECTCLIENT

CONSULTANT

DESIGNED

PREPARED

REVIEWED

APPROVED

YYYY-MM-DD

Path

: \\g

olde

r.gds

\gap

\Bris

bane

\Geo

mat

ics\

FLAN

AGAN

CO

NSU

LTIN

G G

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S_PO

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\ |

File

Nam

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IF T

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T D

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NO

T M

ATC

H W

HAT

IS S

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WN

, TH

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EET

SIZE

HAS

BEE

N M

OD

IFIE

D F

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M: I

SO A

3

1:2,000

1000

METRES

50

VERT.

HORIZ.

0

1:400

10 20

METRES

ELEV

ATIO

N (m

)

CH 16750.0

-25

-20

-15

-10

-5

0

5

-25

-20

-15

-10

-5

0

50 500-50-100

0.0 50.00.0-50.0-100.0

ELEV

ATIO

N (m

)

CH 16500.0

-25

-20

-15

-10

-5

0

5

-25

-20

-15

-10

-5

0

50 500-50-100

0.0 50.00.0-50.0-100.0

ELEV

ATIO

N (m

)

CH 16250.0

-25

-20

-15

-10

-5

0

5

-25

-20

-15

-10

-5

0

50 500-50-100

0.0 50.00.0-50.0-100.0

ELEV

ATIO

N (m

)

CH 16000.0

-25

-20

-15

-10

-5

0

5

-25

-20

-15

-10

-5

0

50 500-50-100

0.0 50.00.0-50.0-100.0

ELEV

ATIO

N (m

)

CH 15750.0

-25

-20

-15

-10

-5

0

5

-25

-20

-15

-10

-5

0

50 50 1000-50-100-150

0.0 50.0 100.00.0-50.0-100.0-150.0

ELEV

ATIO

N (m

)

CH 15500.0

-25

-20

-15

-10

-5

0

5

-25

-20

-15

-10

-5

0

50 50 1000-50-100-150

0.0 50.0 100.00.0-50.0-100.0-150.0

55.10 m 34.00 m

50.00 m 38.00 m

45.00 m45.00 m

30.00 m62.18 m

32.00 m65.21 m


LEGEND


SOFT CLAY

STIFF CLAY




025

mm


FIGURE

F0072

2016-08-25

GPG

PB

MC

MC



PROJECT NO. REV.

PROJECTCLIENT

CONSULTANT

DESIGNED

PREPARED

REVIEWED

APPROVED

YYYY-MM-DD

Path

: \\g

olde

r.gds

\gap

\Bris

bane

\Geo

mat

ics\

FLAN

AGAN

CO

NSU

LTIN

G G

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S_PO

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\ |

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Nam

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IF T

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T D

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NO

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H W

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IS S

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SIZE

HAS

BEE

N M

OD

IFIE

D F

RO

M: I

SO A

3

1:2,000

1000

METRES

50

VERT.

HORIZ.

0

1:400

10 20

METRES

ELEV

ATIO

N (m

)

CH 18250.0

-25

-20

-15

-10

-5

0

5

-25

-20

-15

-10

-5

0

50 500-50-100

0.0 50.00.0-50.0-100.0

ELEV

ATIO

N (m

)

CH 18000.0

-25

-20

-15

-10

-5

0

5

-25

-20

-15

-10

-5

0

50 500-50-100

0.0 50.00.0-50.0-100.0

ELEV

ATIO

N (m

)

CH 17750.0

-25

-20

-15

-10

-5

0

5

-25

-20

-15

-10

-5

0

50 500-50-100

0.0 50.00.0-50.0-100.0

ELEV

ATIO

N (m

)

CH 17500.0

-25

-20

-15

-10

-5

0

5

-25

-20

-15

-10

-5

0

50 500-50-100

0.0 50.00.0-50.0-100.0

ELEV

ATIO

N (m

)

CH 17250.0

-25

-20

-15

-10

-5

0

5

-25

-20

-15

-10

-5

0

50 500-50-100

0.0 50.00.0-50.0-100.0

ELEV

ATIO

N (m

)

CH 17000.0

-25

-20

-15

-10

-5

0

5

-25

-20

-15

-10

-5

0

50 500-50-100

0.0 50.00.0-50.0-100.0


LEGEND


SOFT CLAY

STIFF CLAY




025

mm


FIGURE

F0082

2016-08-25

GPG

PB

MC

MC



PROJECT NO. REV.

PROJECTCLIENT

CONSULTANT

DESIGNED

PREPARED

REVIEWED

APPROVED

YYYY-MM-DD

Path

: \\g

olde

r.gds

\gap

\Bris

bane

\Geo

mat

ics\

FLAN

AGAN

CO

NSU

LTIN

G G

RO

UP\

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RN

S_PO

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PMEN

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AND

S\02

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N\D

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\ |

File

Nam

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IF T

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NO

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H W

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IS S

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SIZE

HAS

BEE

N M

OD

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D F

RO

M: I

SO A

3

1:2,000

1000

METRES

50

VERT.

HORIZ.

0

1:400

10 20

METRES

ELEV

ATIO

N (m

)

CH 19750.0

-25

-20

-15

-10

-5

0

5

-25

-20

-15

-10

-5

0

50 50 1000-50-100

0.0 50.0 100.00.0-50.0-100.0

ELEV

ATIO

N (m

)

CH 19500.0

-25

-20

-15

-10

-5

0

5

-25

-20

-15

-10

-5

0

50 50 1000-50-100

0.0 50.0 100.00.0-50.0-100.0

ELEV

ATIO

N (m

)

CH 19250.0

-25

-20

-15

-10

-5

0

5

-25

-20

-15

-10

-5

0

50 50 1000-50-100

0.0 50.0 100.00.0-50.0-100.0

ELEV

ATIO

N (m

)

CH 19000.0

-25

-20

-15

-10

-5

0

5

-25

-20

-15

-10

-5

0

50 500-50-100

0.0 50.00.0-50.0-100.0

ELEV

ATIO

N (m

)

CH 18750.0

-25

-20

-15

-10

-5

0

5

-25

-20

-15

-10

-5

0

50 500-50-100

0.0 50.00.0-50.0-100.0

ELEV

ATIO

N (m

)

CH 18500.0

-25

-20

-15

-10

-5

0

5

-25

-20

-15

-10

-5

0

50 500-50-100

0.0 50.00.0-50.0-100.0


LEGEND


SOFT CLAY

STIFF CLAY




025

mm


FIGURE

F0092

2016-08-25

GPG

PB

MC

MC



PROJECT NO. REV.

PROJECTCLIENT

CONSULTANT

DESIGNED

PREPARED

REVIEWED

APPROVED

YYYY-MM-DD

Path

: \\g

olde

r.gds

\gap

\Bris

bane

\Geo

mat

ics\

FLAN

AGAN

CO

NSU

LTIN

G G

RO

UP\

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RN

S_PO

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N_S

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ELO

PMEN

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N_S

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S\02

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N\D

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\ |

File

Nam

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5462

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IF T

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NO

T M

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H W

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IS S

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EET

SIZE

HAS

BEE

N M

OD

IFIE

D F

RO

M: I

SO A

3

1:2,000

1000

METRES

50

VERT.

HORIZ.

0

1:400

10 20

METRES

ELEV

ATIO

N (m

)

CH 21250.0

-25

-20

-15

-10

-5

0

5

-25

-20

-15

-10

-5

0

50 50 1000-50-100

0.0 50.0 100.00.0-50.0-100.0

ELEV

ATIO

N (m

)

CH 21000.0

-25

-20

-15

-10

-5

0

5

-25

-20

-15

-10

-5

0

50 50 1000-50-100

0.0 50.0 100.00.0-50.0-100.0

ELEV

ATIO

N (m

)

CH 20750.0

-25

-20

-15

-10

-5

0

5

-25

-20

-15

-10

-5

0

50 50 1000-50-100

0.0 50.0 100.00.0-50.0-100.0

ELEV

ATIO

N (m

)

CH 20500.0

-25

-20

-15

-10

-5

0

5

-25

-20

-15

-10

-5

0

50 50 1000-50-100

0.0 50.0 100.00.0-50.0-100.0

ELEV

ATIO

N (m

)

CH 20250.0

-25

-20

-15

-10

-5

0

5

-25

-20

-15

-10

-5

0

50 50 1000-50-100

0.0 50.0 100.00.0-50.0-100.0

ELEV

ATIO

N (m

)

CH 20000.0

-25

-20

-15

-10

-5

0

5

-25

-20

-15

-10

-5

0

50 50 1000-50-100

0.0 50.0 100.00.0-50.0-100.0


LEGEND


SOFT CLAY

STIFF CLAY




025

mm


FIGURE

F0102

2016-08-25

GPG

PB

MC

MC



PROJECT NO. REV.

PROJECTCLIENT

CONSULTANT

DESIGNED

PREPARED

REVIEWED

APPROVED

YYYY-MM-DD

Path

: \\g

olde

r.gds

\gap

\Bris

bane

\Geo

mat

ics\

FLAN

AGAN

CO

NSU

LTIN

G G

RO

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S_PO

RT_

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N_S

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6223

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RT_

DEV

ELO

PMEN

T_N

OR

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N_S

AND

S\02

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N\D

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\ |

File

Nam

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5462

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IF T

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T D

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NO

T M

ATC

H W

HAT

IS S

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EET

SIZE

HAS

BEE

N M

OD

IFIE

D F

RO

M: I

SO A

3

1:2,000

1000

METRES

50

VERT.

HORIZ.

0

1:400

10 20

METRES

ELEV

ATIO

N (m

)

CH 22750.0

-25

-20

-15

-10

-5

0

5

-25

-20

-15

-10

-5

0

50 50 1000-50-100

0.0 50.0 100.00.0-50.0-100.0

ELEV

ATIO

N (m

)

CH 22500.0

-25

-20

-15

-10

-5

0

5

-25

-20

-15

-10

-5

0

50 50 1000-50-100

0.0 50.0 100.00.0-50.0-100.0

ELEV

ATIO

N (m

)

CH 22250.0

-25

-20

-15

-10

-5

0

5

-25

-20

-15

-10

-5

0

50 50 1000-50-100

0.0 50.0 100.00.0-50.0-100.0

ELEV

ATIO

N (m

)

CH 22000.0

-25

-20

-15

-10

-5

0

5

-25

-20

-15

-10

-5

0

50 50 1000-50-100

0.0 50.0 100.00.0-50.0-100.0

ELEV

ATIO

N (m

)

CH 21750.0

-25

-20

-15

-10

-5

0

5

-25

-20

-15

-10

-5

0

50 50 1000-50-100

0.0 50.0 100.00.0-50.0-100.0

ELEV

ATIO

N (m

)

CH 21500.0

-25

-20

-15

-10

-5

0

5

-25

-20

-15

-10

-5

0

50 50 1000-50-100

0.0 50.0 100.00.0-50.0-100.0


LEGEND


SOFT CLAY

STIFF CLAY




025

mm


FIGURE

F0112

2016-08-25

GPG

PB

MC

MC



PROJECT NO. REV.

PROJECTCLIENT

CONSULTANT

DESIGNED

PREPARED

REVIEWED

APPROVED

YYYY-MM-DD

Path

: \\g

olde

r.gds

\gap

\Bris

bane

\Geo

mat

ics\

FLAN

AGAN

CO

NSU

LTIN

G G

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RN

S_PO

RT_

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PMEN

T_N

OR

THER

N_S

AND

S\99

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\154

6223

_CAI

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S_PO

RT_

DEV

ELO

PMEN

T_N

OR

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N_S

AND

S\02

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UC

TIO

N\D

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\ |

File

Nam

e: 1

5462

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06-R

-F00

1.dw

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IF T

HIS

MEA

SUR

EMEN

T D

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NO

T M

ATC

H W

HAT

IS S

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, TH

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EET

SIZE

HAS

BEE

N M

OD

IFIE

D F

RO

M: I

SO A

3

1:2,000

1000

METRES

50

VERT.

HORIZ.

0

1:400

10 20

METRES

ELEV

ATIO

N (m

)

CH 24200.8

-25

-20

-15

-10

-5

0

5

-25

-20

-15

-10

-5

0

50 50 1000-50-100

0.0 50.0 100.00.0-50.0-100.0

ELEV

ATIO

N (m

)

CH 24000.0

-25

-20

-15

-10

-5

0

5

-25

-20

-15

-10

-5

0

50 50 1000-50-100

0.0 50.0 100.00.0-50.0-100.0

ELEV

ATIO

N (m

)

CH 23750.0

-25

-20

-15

-10

-5

0

5

-25

-20

-15

-10

-5

0

50 50 1000-50-100

0.0 50.0 100.00.0-50.0-100.0

ELEV

ATIO

N (m

)

CH 23500.0

-25

-20

-15

-10

-5

0

5

-25

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-15

-10

-5

0

50 50 1000-50-100

0.0 50.0 100.00.0-50.0-100.0

ELEV

ATIO

N (m

)

CH 23250.0

-25

-20

-15

-10

-5

0

5

-25

-20

-15

-10

-5

0

50 50 1000-50-100

0.0 50.0 100.00.0-50.0-100.0

ELEV

ATIO

N (m

)

CH 23000.0

-25

-20

-15

-10

-5

0

5

-25

-20

-15

-10

-5

0

50 50 1000-50-100

0.0 50.0 100.00.0-50.0-100.0


LEGEND


SOFT CLAY

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PROJECT NO. REV.

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16 January 2017 Report No. 1546223-008-R-Rev2

APPENDIX A Important information relating to this report

IMPORTANT INFORMATION RELATING TO THIS REPORT

The document (“Report”) to which this page is attached and which this page forms a part of, has been issued by Golder Associates Pty Ltd (“Golder”) subject to the important limitations and other qualifications set out below.

This Report constitutes or is part of services (“Services”) provided by Golder to its client (“Client”) under and subject to a contract between Golder and its Client (“Contract”). The contents of this page are not intended to and do not alter Golder’s obligations (including any limits on those obligations) to its Client under the Contract.

This Report is provided for use solely by Golder’s Client and persons acting on the Client’s behalf, such as its professional advisers. Golder is responsible only to its Client for this Report. Golder has no responsibility to any other person who relies or makes decisions based upon this Report or who makes any other use of this Report. Golder accepts no responsibility for any loss or damage suffered by any person other than its Client as a result of any reliance upon any part of this Report, decisions made based upon this Report or any other use of it.

This Report has been prepared in the context of the circumstances and purposes referred to in, or derived from, the Contract and Golder accepts no responsibility for use of the Report, in whole or in part, in any other context or circumstance or for any other purpose.

The scope of Golder’s Services and the period of time they relate to are determined by the Contract and are subject to restrictions and limitations set out in the Contract. If a service or other work is not expressly referred to in this Report, do not assume that it has been provided or performed. If a matter is not addressed in this Report, do not assume that any determination has been made by Golder in regards to it.

At any location relevant to the Services conditions may exist which were not detected by Golder, in particular due to the specific scope of the investigation Golder has been engaged to undertake. Conditions can only be verified at the exact location of any tests undertaken. Variations in conditions may occur between tested locations and there may be conditions which have not been revealed by the investigation and which have not therefore been taken into account in this Report.

Golder accepts no responsibility for and makes no representation as to the accuracy or completeness of the information provided to it by or on behalf of the Client or sourced from any third party. Golder has assumed that such information is correct unless otherwise stated and no responsibility is accepted by Golder for incomplete or inaccurate data supplied by its Client or any other person for whom Golder is not responsible. Golder has not taken account of matters that may have existed when the Report was prepared but which were only later disclosed to Golder.

Having regard to the matters referred to in the previous paragraphs on this page in particular, carrying out the Services has allowed Golder to form no more than an opinion as to the actual conditions at any relevant location. That opinion is necessarily constrained by the extent of the information collected by Golder or otherwise made available to Golder. Further, the passage of time may affect the accuracy, applicability or usefulness of the opinions, assessments or other information in this Report. This Report is based upon the information and other circumstances that existed and were known to Golder when the Services were performed and this Report was prepared. Golder has not considered the effect of any possible future developments including physical changes to any relevant location or changes to any laws or regulations relevant to such location.

Where permitted by the Contract, Golder may have retained subconsultants affiliated with Golder to provide some or all of the Services. However, it is Golder which remains solely responsible for the Services and there is no legal recourse against any of Golder’s affiliated companies or the employees, officers or directors of any of them.

By date, or revision, the Report supersedes any prior report or other document issued by Golder dealing with any matter that is addressed in the Report.

Any uncertainty as to the extent to which this Report can be used or relied upon in any respect should be referred to Golder for clarification.

GAP Form No. LEG04 RL2 July 2015 1/1

Golder Associates Pty Ltd

216 Draper Street

Cairns, Queensland 4870

Australia

T: +61 7 4054 8200

Caption Text

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