technical assistance consultant’s report€¦ · "japanese atrocities on nauru during the...

Technical Assistance Consultant’s Report

This consultant’s report does not necessarily reflect the views of ADB or the Government concerned, and ADB and the Government cannot be held liable for its contents. (For project preparatory technical assistance: All the views expressed herein may not be incorporated into the proposed project’s design.

Project Number: 48480 December 2017

Nauru: Sustainable and Climate-Resilient Connectivity Project Financed by the Asian Development Fund

Prepared by Cardno Emerging Markets

Fortitude Valley, QLD, Australia

For Ministry of Finance Implementing agency

31

Jap Type 94 50kg HE NEQ: 18.6kg

Length: 1.04m

Body diameter: 177mm

Page 54 of 64

32

Jap Type 97 No6 60kg Land bomb NEQ: 21.1kg

Length: 1.02m


Page 55 of 64

33

Jap Type 99 No6 60kg Ordinary Bomb NEQ: 29.6kg

Length: 1.07m


Page 56 of 64

34

US AN-M43 500 lb (227kg) HE NEQ: 145 kg

Length: 1.14 m

Body diameter: 360 mm

7 of 64

35

US AN-M59 1000lb (454kg) SAP NEQ: 145 kg

Length: 1.45 m


Page 58 of 64

36

US AN-M34 2000lb (907kg) HE NEQ: 507kg

Length: 2.36m


Page 59 of 64

37

US MKV-VI 4000lb (1814kg) HE NEQ: 1400kg

Length: 2.2m


Page 60 of 64

39

Jap Type 23 Grenade HE

NEQ: 37gm

Height: 95mm Diameter: 51mm

Page 61 of 64

40

Jap Type 91 Grenade HE NEQ: 62gm

Total Length: 206mm Body diameter: 51mm

Page 62 of 64

41

Jap Type 97 Grenade HE NEQ: 62gm

Height: 104mm

Diameter: 51mm

Page 63 of 64

Milsearch Project Reference: NAU 53916

ANNEX D – Bibliography

BIBLIOGRAPHY

1. Gill, G. Hermon (1957). Royal Australian Navy 1939–1942. Australia in the War of 1939–1945. Series 2 –

Navy. Volume 1. Canberra: Australian War Memorial. OCLC 848228.

2. Yuki Tanaka. "Japanese Atrocities on Nauru during the Pacific War: The murder of Australians, the

massacre of lepers and the ethnocide of Nauruans

3. "MS Vinni's Story, Victim of Komet". Warsailors.com. Retrieved 2008-09-05

4. Mid-Pa ifi Outposts , Ellis, A. “ir , AWM ID

5. Waters, Sydney David (1956). The Royal New Zealand Navy. The Official History of New Zealand in the

Second World War 1939– 1945. Wellington: Historical Publications Branch.

6. Natio al Ar hi es of Australia, Atta k o Nauru and Nauru Shipping, NAA ID 102247

7. Wikipedia, WW Nauru : Garrett, Jemima (1996). Island exiles. Sydney: ABC books. ISBN 0-7333- 0485-0.

8. Stanley C. Jersey (2004-02-29). "The Battle for Betio Island, Tarawa Atoll"

9. National Archives of Australia, Defence – Recapture of Nauru and Ocean Island, NAA ID 102255 –

Interrogation records of Fukujuri NAMAMI and Hoichi HASHIMOTO

10. History of United States Naval Operations in World War II: Vol. 7 Aleutians, Gilberts, and Marshalls, AWM

ID 038495, S.E. Morison

11. The Ar y Air For es i World War , Vol , The Pa ifi – Guadal a al to “aipa , Edited y W.F. Cra e & J.L. Cate, AWM: R940.544973 A741v4,

12. The History Place –Timeline of the Pacific War

http://www.historyplace.com/unitedstates/pacificwar/timeline.htm

Page 64 of 64

https://www.awm.gov.au/histories/second_world_war/AWMOHWW2/Navy/Vol1/

https://en.wikipedia.org/wiki/Australia_in_the_War_of_1939%E2%80%931945

https://en.wikipedia.org/wiki/Australia_in_the_War_of_1939%E2%80%931945

https://en.wikipedia.org/wiki/OCLC

https://www.worldcat.org/oclc/848228

http://warsailors.com/raidervictims/vinni.html

http://www.nzetc.org/tm/scholarly/tei-WH2Navy.html

https://en.wikipedia.org/wiki/International_Standard_Book_Number

https://en.wikipedia.org/wiki/Special:BookSources/0-7333-0485-0

http://www.tarawaontheweb.org/stanjersy1.htm

Reliability Achieved Through Knowledge, Safety, and Quality

SECTION 2 - FOCUSED HISTORICAL REVIEW

Documentation History and Status

Version Issue Date Changes Approved By Signature

1 23 August 2016 Alan McKeown

Distribution of Copies

Copy Date Issued Issued To Format Quantity

1 23 August 2016 Cardno Pty Ltd PDF/Word 1

2

3

Document Details

Project Reference: NAU 53916

Document Title: NAU 53916 Republic Of Nauru ADB Port Development Project (Stage1)

Geophysical ERW Survey

Client: Cardno Pty Ltd

Project Manager: Alan McKeown, Senior Operations Manager

Last Saved: 01 Aug 2016

Author: Torbjorn von Strokirch

Document Version: 1

Copy 1

Page 1 of 24


DISCLAIMER

DISCLAIMER

This Document is an important legal document. The use of this report is governed by and subject to this

disclaimer.

Milsearch Client

The e tity that co issio ed this report, a d ho is Milsearch Australia Pty Li ited’s Milsearch client

is Cardno Pty Ltd the Clie t .

Purpose of This Report

This report was commissioned for the purpose of detailing the activities undertaken by Milsearch on the

Clie t’s “ite a d the results of those acti ities The Purpose .

Disclaimer

Milsearch accepts no responsibility or liability for any use of this report or any reliance upon this report

by any person, other than the use of the whole report by the Client consistent with the Purpose. Milsearch

accepts no responsibility or liability to any person who relies upon a part of this report. This report must

at all times be considered in its entirety.


LIST OF ACRONYMS AND DEFINITIONS

Acronyms and Definitions that may be used in this report:

Area of Interest (AoI): The geographic area encompassed by this study – i.e., the study area.

Armour Piercing (AP): Describes weapons specifically designed to penetrate armour.

Bottom or Ground Sea Mines: Mines which lay on the seabed. Generally these mines are influence

operated but may be contact in shallow water used to target landing craft.

Contact Sea Mine: An explosive device which requires the target to contact it in order to function. This

is as opposed to influence mines which function when influenced by the target.

Desk Top Review (DTR) An Historical Review of military activities focussed on ordnance types and likely

remaining contamination.

Explosive Ordnance (EO): All munitions containing explosives or chemical agents. This includes bombs

and warheads; guided and ballistic missiles; artillery shells, mortars, rockets and small arms

ammunition; all mines, torpedoes, depth charges and demolition charges; pyrotechnics, clusters and

dispensers; cartridge and propellant actuated devices; electro-explosive devices; clandestine and

improvised explosive devices; and all similar or related items or components explosive in nature.

Explosive Ordnance Disposal: The detection, identification, field evaluation, rendering safe and final

disposal of unexploded ordnance. It may also include the rendering safe and/or disposal of explosive

ordnance, which may have become hazardous by damage or deterioration.

Explosive Ordnance Disposal Book (EODB): US military publications dealing with Explosive Ordnance

Disposal procedures.

Explosive Ordnance Waste (EOW): Inert material remnant from the initiation or functioning of

explosive ordnance.

Explosive Remnants of War (ERW): Unexploded Ordnance (UXO) and Abandoned Explosive Ordnance

(AXO). (CCW protocol V). (IMAS-04-10 Glossary of mine action terms, Second Edition, Clause 3.100.)

General Purpose (GP) Refers to general purpose high explosive bombs as opposed to specific purpose

bombs such as incendiary, propaganda leaflet etc.

Influence Sea Mines: Sea mines which function when influenced by the target. Influences used to

function sea mines can be:

1. Acoustic/Seismic;

2. Magnetic;

3. Pressure, and

4. Combination of above influences.

Moored Sea Mines: Floating mines which are moored in position.

Nautical Miles (nmi) 1,852 metres

Semi Armour Piercing (SAP): Describes a weapon which has a dual role of penetrating armour and a

general purpose function.

Page 3 of 24


Unexploded Ordnance (UXO): Explosive ordnance that has been primed, fused, armed, or otherwise

prepared for action, and have been fired, dropped, launched, projected or placed in such a manner as to

constitute a hazard to operations, installation, personnel, or materiel but remains unexploded either by

malfunction, design, or any other cause. UXO includes items of EO that have been removed from their

original resting place for any reason, including souveniring by members of the public.

Page 4 of 24


Part A – Section 2 Table of Contents

DISCLAIMER AND COPYRIGHT NOTICE ............................................................................................... 2

LIST OF ACRONYMS AND DEFINITIONS ............................................................................................... 3

1.0 SURVEY OBJECTIVES ................................................................................................................ 6

2.0 PRE-INVESTIGATION ASSESSMENT ........................................................................................... 6

3.0 POSITIONING .......................................................................................................................... 6

4.0 G858 MAGNETOMETER ........................................................................................................... 7

4.1 Instrument Calibration And Testing ......................................................................................... 7

4.2 Data Acquisition ...................................................................................................................... 8

4.3 G858 Data Processing ............................................................................................................ 11

4.4 Data Reduction And Pre-Processing ....................................................................................... 11

4.5 Data Organisation And Gridding ............................................................................................ 11

4.6 Data Interpretation ............................................................................................................... 11

5.0 MAGNETIC SURVEY LIMITATIONS (MAGNETICALLY HOSTILE AREAS) ....................................... 12

6.0 DATA ACQUISITION SUMMARY ............................................................................................. 15

ANNEX A - NORTH REEF DATA PLOT. ................................................................................................ 16

ANNEX B – SOUTH REEF DATA PLOT. ................................................................................................ 17

ANNEX C –ORDNANCE DETECTION & INTERPRETATION AND INVESTIGATION REPORT ...................... 18

ANNEX D – SURVEY BOUNDARY COORDINATES ................................................................................ 22

ANNEX E – SURVEY GAPS COORDINATES .......................................................................................... 24

List of Figures

FIGURE 1: DATA CAPTURED OVER TEST TARGET ...................................................................................................................... 8 FIGURE 2: LINE LOCATION PLOT.......................................................................................................................................... 10 FIGURE 3: PROCESSED MAGNETIC DATA PLOT ....................................................................................................................... 12 FIGURE 4: PROCESSED MAGNETIC DATA COVERAGE OVER BING PHOTO ..................................................................................... 14 FIGURE 5: SURVEY BOUNDARY PLOT ................................................................................................................................... 23

LIST OF PLATES PLATE 1: 20LB FRAGMENTATION BOMB TEST TARGET IN PLACE ................................................................................................. 7 PLATE 2: MAGNETIC SURVEY ON THE REEF AREA ..................................................................................................................... 9 PLATE 3: MAGNETICALLY HOSTILE AREA .............................................................................................................................. 13 PLATE 4: MAGNETIC SURVEY IN MAGNETICALLY HOSTILE AREA ................................................................................................ 13

Page 5 of 24


PART A - SECTION 2 - GEOPHYSICAL ERW SURVEY

1.0 SURVEY OBJECTIVES

To systematically acquire accurately positioned digital magnetic data over accessible areas of the site from

which the existence of each discrete ferrous object equal to or greater in magnetic signature to an Aircraft

20lb Frag Bomb or larger, would be located with high confidence to a depth beyond that likely through

normal kinetic penetration.

1. All data captured during the investigation would be interpreted by a Geophysicist experienced in

discrete UXO item interpretation utilising special purpose compiled software. Positioning of all

discrete ferrous anomalies during the investigation phase would be achieved with an integrated High

Precision Global Positioning System (HPGPS) accurate to 10 centimetres.

2. Acquired data is then presented as colour images showing the position of each anomaly in plan form.

Complementing the colour images are Investigation and Relocation lists also known as a Dig-“heet , listing the position of each anomaly detected.

2.0 PRE-INVESTIGATION ASSESSMENT

As a result of the pre-investigation assessment, it was considered that naturally occurring magnetic

background noise levels would not preclude the use of the magnetic method over the majority of the Site

though there clearly would be issues with any sort of metal detection system due to the large amount of

metal on the site. Accordingly, the Geometrics G858 magnetometer was selected as an appropriate

technology to locate those ferrous items matching the target specifications.

The G858 Magnetometer is a dual sensor caesium vapour total field magnetometer designed to measure

and record the magnetic field strength of the earth to a high level of accuracy. Ferrous metal objects

cause the earth’s ag etic field to cha ge directio a d a plitude. These ag etic pertur atio s are located by sensitive magnetometer sensors and the variations in field strength are used to model the

position, depth and theoretical mass of the buried ferrous item. Technical specifications for the G858 are

presented at Enclosure 2.

3.0 POSITIONING

The HPGPS system was integrated with the G858 magnetometer to provide accurate location of all

magnetometer traverses. Sensors on the dual system were spaced 100 centimetres apart and the system

was walked along lines paralleling the site boundaries (approximately 105 degrees and 15 degrees

bearing).


4.0 G858 MAGNETOMETER

4.1 Instrument Calibration and Testing

Prior to the commencement of the data acquisition phase the G858 magnetometer was

calibrated to ensure it functioned within the Original Equipment Manufacturer (OEM)

specifications.

When testing it is preferable to use a locally derived target to confirm that the magnetometer

system is working properly and to calibrate interpretation since the target response can be

dependent on local conditions and also on the deterioration of metal objects in the

environment.

A 20lb fragmentation bomb found in the area was chosen for the test. It proved impossible to

locate a clear, non-contaminated area on land and the target was therefore placed on the reef

in natural hollow.

Plate 1: 20lb Fragmentation Bomb Test Target in Place

A 5 x 10 metre area was surveyed over the target as shown in the following figure. Calculations

of the terminal velocity of a 20lb frag bomb suggest that the maximum speed this should

impact is approximately 160 m/s. This would result in a theoretical maximum penetration into

coral of around 10cm though in loose dune sand this penetration could be as much as a metre.

To provide a high level of confidence for interpretation within the reef area the target was

surveyed to simulate a burial depth of 30cm.


There is a clear response over the test target over some 40nT below background. A value of

½ this, namely 20nT is therefore selected for interpretation to again provide a confidence

buffer. Note that the target was actually located between two lines in order to give a

minimum response.

The large low to the west is a magnetic object that was not visible on the surface.

Figure 1: Data Captured Over Test Target

4.2 Data Acquisition

Where possible a 100% systematic magnetic survey utilizing the Geometrics G858

Magnetometer was conducted over the period 2nd August to 5 August 2016.

Page 8 of 24


During data acquisition the detector sensors were carried at an elevation as close to the

ground as was practical. This was usually around 20-30 centimetres above ground. This is

considered appropriate for locating 20lb frag bombs and larger items.

Integrity of the transect lanes was achieved by laying out measuring tapes at the start and

finish of each grid line placing string lines along the ground between these for the equipment

operator to follow.

Data was recorded at 0.1 second increments along each line which resulted in an

approximate data spacing of 10-12 centimetres. An audio monitor of the mixed, multi-

channel responses provides feedback to the operator on the functionality of the sensor and

the presence of targets. During data acquisition, the magnetic response is also displayed on

a screen.

Plate 2: Magnetic Survey on the Reef Area

As can be seen on the following plot there were occasional locations where the operator had

to deviate around obstacles, however, where clear lines are available, the lines in general are

straight.

Page 9 of 24


Each profile GPS plot was reviewed by the geophysicist for unacceptable occurrences of bad

divergence from the intended line or areas where the GPS status indicator showed that High

Precision GPS (HPGPS) had not been recorded. Coloured plots of GPS status were provided

to the field operators indicating where the GPS has recorded Differential GPS (DGPS) instead

of HPGPS. The red lines in Figure 2 below show an area which was resurveyed because of

unacceptable line spacing. In the more cluttered areas it was impossible to get a reliable GPS

signal and the lines were therefore accepted as they are.

Figure 2: Line Location Plot


It proved impossible to survey much of the southern and central parts of the area due to the

presence of buildings, shipping containers, vehicles and other large ferrous metal objects.

To the west part of the defined area was in deep water or too close to the edge of the reef to

survey safely.

4.3 G858 Data Processing

The multi-channel data files in a proprietary survey-line format were downloaded to a

personal computer from the G858 magnetometer at the e d of the ea h day’s data acquisition. Data transfer involved the use of the MagMap2000 data transfer and editing

program. This program also permits checking of the quality of the location information and

application of corrections for the offset between the HPGPS antenna and the magnetic

sensors. The data with positional coordinates is exported from MagMap2000 in an ASCII

format multi-channel file.

4.4 Data Reduction and Pre-Processing

The earth’s ag eti field has a significant diurnal variation that needs to be removed before

the data can be examined and before a composite picture can be produced. Broad geological

or cultural anomalies also may need filtering out. Both of these aims can be achieved using a

wide median filter, in this case a 101 point filter. This is applied to the data in the ASCII text

file using proprietary software.

4.5 Data Organisation and Gridding

This pro ess i ol ed utilised Golde “oft are’s “urfer pa kage, to apply Krigi g interpolation to the XYZ data files to generate regularly spaced grid files having a uniform cell

size of typically 20 centimetres.

The Surfer software is also used to generate plots of the data.

4.6 Data Interpretation

The data was processed as a whole a d a Dig-“heet produ ed do u e ti g the positio of each metallic object identified. The data was scanned for anomalies exceeding a predefined

amplitude threshold, in this case 20nT. The appropriate threshold value was determined by

analysing the results of the survey of the test block as mentioned previously.

All the data captured was assessed for suitability and accuracy. Sections of the data in the

east and southeast were not considered adequate for UXO detection because of interference

from buildings and metal rubbish. The data over the beach was also highly affected by

magnetic scrap and rubbish so that individual items of a response like that of a 20lb frag

bomb could not be identified with confidence.

Page 11 of 24


Figure 3: Processed Magnetic Data Plot

5.0 MAGNETIC SURVEY LIMITATIONS (Magnetically Hostile Areas)

At the conclusion of the G858 magnetometer investigation phase, all the captured data was assessed for

suitability and accuracy. Several areas were found to have much higher than acceptable magnetic levels

due to rubbish, shipping containers, buildings, and scrap metal. This meant that in those portions of the

site, confident discrimination of the 20lb fragmentation bomb anomaly was not possible.

Page 12 of 24


Plate 3: Magnetically Hostile Area

Plate 4: Magnetic Survey in Magnetically Hostile Area

Page 13 of 24


The following magnetic image shows the coverage over the Bing photo. Red areas are generally over

100nT in magnetic response and blue below -100nT. Remembering that the target is potentially

anything over 20nT we can see that large areas are so contaminated with metal that recognising a 20nT

response would be impossible.

Figure 4: Processed Magnetic Data Coverage over Bing Photo

The reef area which is mostly coloured green is typical of a normal non-magnetic area with occasional

magnetic targets present. The southern linear anomaly in the reef zone is due to an anchor chain while

the larger linear reef anomaly is a band of reinforced concrete covering a pipe.

Page 14 of 24


There are other types of metal detection technology available with electromagnetics (EM) being

commonly used in areas where the magnetic method is inappropriate but the contaminated portions of

this site are considered so covered in metal that EM in not appropriate either.

6.0 DATA ACQUISITION SUMMARY

3.25 hectares of the 7.9 hectare site was surveyed. Of this approximately 2.5 hectares of the reef is

considered suitable for magnetic surveying and target recognition and 2 hectares is either on the edge

of the reef in the wave zone or in deep water. The remaining 3.4 hectares is either under buildings,

containers or simply too contaminated with metal for any ordnance to be detectable.

A total of 140 anomalies were interpreted in the reef area. Of these 81 are interpreted as at less than

50cm depth and, given the inaccuracy of magnetic depth estimates are probably close to the surface

and easily investigated. The remainder will include quite a few targets that will be buried under the coral

and challenging to recover.

List of Annexes:

Annex A. North Reef Data Plot.

Annex B. South Reef Data Plot

Annex C. NAU 53916 Ordnance Detection Survey - Interpretation and Investigation Report

Annex D. Survey Boundary Coordinates

Annex E. Survey Gaps Coordinates

Page 15 of 24

of 24

Annex A - North Reef Data Plot.

of 24

Annex B - South Reef Data Plot.

Milsearch Pty Ltd

Ordnance Detection Survey -

Interpretation and Investigation Report - F-155

Project Reference: MilS

Project Name:

Month Surveyed:

Date Reviewed:

E(m)

Coordinates

N(m)

Coordinates

Est

Depth

(m)

Description

Siz

e/Q

ty

De

pth

(m

m)

Disposal

Action

(See

Legend)

EOD

Tech

ID

Reef-1 712553.69 9941704 0

Reef-2 712546.69 9941695 0.25

Reef-3 712537.38 9941699 0.42

Reef-4 712535.81 9941694 0.59

Reef-5 712530.75 9941692 0.39

Reef-6 712529 9941698 0.88

Reef-7 712529.81 9941701 0.73

Reef-8 712531.81 9941706 0.23

Reef-9 712535.06 9941707 0.39

Reef-10 712529.94 9941710 0.46

Reef-11 712534.69 9941718 0.64

Reef-12 712535.69 9941720 2.13

Reef-13 712533.13 9941723 0.81

Reef-14 712535.25 9941731 0.23

Reef-15 712542.56 9941733 0.54

Reef-16 712553.13 9941719 0.47

Reef-17 712563.75 9941716 0.5

Reef-18 712571.88 9941710 0.47

Reef-19 712585.13 9941724 0.87

Reef-20 712578.5 9941732 0.31

Reef-21 712572.56 9941724 0.36

Reef-22 712570.31 9941731 0.61

Reef-23 712564.88 9941729 0.32

Reef-24 712555.56 9941732 0.9

Reef-25 712550.81 9941732 1.07

Reef-26 712545.81 9941731 0.4

Reef-27 712538.56 9941739 0.74

Reef-28 712538.38 9941744 0.55

Reef-29 712548.13 9941754 0.38

Reef-30 712546.06 9941755 0.88

Reef-31 712544.06 9941760 0.72

Reef-32 712544.5 9941761 0.51

Reef-33 712558.81 9941779 1.13

Reef-34 712558.81 9941785 0.51

Reef-35 712563.19 9941796 0.77

Reef-36 712572.13 9941783 0.48

Reef-37 712573.25 9941782 0.48

Reef-38 712567.69 9941777 0.3

Reef-39 712577.75 9941776 0.09

Reef-40 712582.44 9941766 0.62

Reef-41 712584.63 9941759 0.75

Reef-42 712576 9941745 0.43

Reef-43 712579.94 9941747 0.43

Reef-44 712595.69 9941752 0.24

Reef-45 712597.94 9941744 0.42

Coordinate System: WGS 84 Zone 58S

Nau53916

ADB Port Development Project

Aug-2016

Project Manager:

Interpreter:

Port Reef area

Mark Reynish

Torbjorn von Strokirch

Block ID:

* Note: EM61 surveys followed up with Minelab F3 18 inch coil and G858 surveys with Foerster 4.032 magnetometer unless otherwise advised

Se

ria

l

Geophysical Investigation

Printed on 23/08/2016

L = Left in situ, D = Destroyed in situ, R = Removed - See F-160Version 5 Page 1 of 4Page 18 of 24

ANNEX C -Ordnance Detection &

Interpretation and Investigation Report

Milsearch Pty Ltd

Ordnance Detection Survey -

Interpretation and Investigation Report - F-155

Project Reference: MilS

Project Name:

Month Surveyed:

Date Reviewed:

E(m)

Coordinates

N(m)

Coordinates

Est

Depth

(m)

Description

Siz

e/Q

ty

De

pth

(m

m)

Disposal

Action

(See

Legend)

EOD

Tech

ID

Coordinate System: WGS 84 Zone 58S

Nau53916

ADB Port Development Project

Aug-2016

Project Manager:

Interpreter:

Port Reef area

Mark Reynish

Torbjorn von Strokirch

Block ID:

* Note: EM61 surveys followed up with Minelab F3 18 inch coil and G858 surveys with Foerster 4.032 magnetometer unless otherwise advised

Se

ria

l

Geophysical Investigation

Reef-46 712601.06 9941739 0.46

Reef-47 712608 9941739 0.15

Reef-48 712604.38 9941729 0.21

Reef-49 712606.69 9941724 0.36

Reef-50 712605.69 9941715 0.47

Reef-51 712584.06 9941702 0.32

Reef-52 712584.5 9941698 0.46

Reef-53 712572.13 9941692 0.44

Reef-54 712566.69 9941696 0.42

Reef-55 712560.44 9941692 0.21

Reef-56 712524.75 9941684 0.5

Reef-57 712524.81 9941676 0.5

Reef-58 712521 9941670 0.5

Reef-59 712515.63 9941667 0.61

Reef-60 712519.06 9941660 1

Reef-61 712512.63 9941637 0.52

Reef-62 712504.56 9941593 0.49

Reef-63 712502.44 9941574 0.73

Reef-64 712498.31 9941578 1.29

Reef-65 712495.19 9941577 0.49

Reef-66 712502.13 9941558 1.14

Reef-67 712513.44 9941584 0.55

Reef-68 712518.81 9941583 0.63

Reef-69 712523 9941580 0.49

Reef-70 712519.06 9941570 0.39

Reef-71 712529.5 9941571 0.36

Reef-72 712535.88 9941569 0.69

Reef-73 712542.38 9941564 0.46

Reef-74 712584.06 9941600 0.34

Reef-75 712589.5 9941598 0.28

Reef-76 712589.75 9941603 0.56

Reef-77 712602.19 9941612 0.53

Reef-78 712595.81 9941619 0.44

Reef-79 712611.5 9941634 0.43

Reef-80 712616.31 9941643 0.46

Reef-81 712618.75 9941651 0.31

Reef-82 712610.75 9941659 0.7

Reef-83 712604.75 9941663 0.93

Reef-84 712602.94 9941654 0.41

Reef-85 712606.31 9941649 0.35

Reef-86 712598.19 9941646 0.34

Reef-87 712576.31 9941653 0.24

Reef-88 712572.19 9941656 1.8

Reef-89 712573.13 9941647 0.41

Reef-90 712573.44 9941626 0.67

Printed on 23/08/2016

L = Left in situ, D = Destroyed in situ, R = Removed - See F-160Version 5 Page 2 of 4Page 19 of 24

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