spud, page-6

**app three weeks -

As a result of the upper sections being carried out by a smaller drilling rig Cydonia will be able to confine the
necessary 24 hour operation of coring to approximately one week. It is important, from a safety perspective,
to provide continuous drilling operations when ?in coal ?. Gas is anticipated and it is critical that fluid
circulation and full well control is maintained throughout the coring cycle.
Overall the drilling program at a single location is not expected to exceed three weeks accumulated time.



Cydonia Resources Pty Ltd
ABN 68 137 806 181
Postal Address: P.O. Box 329, Kippa‐Ring, QLD, 4021, Australia
Phone (m) +61 (0) 407 508 791, Email: [email protected]
24 August 2010
Mr Michael Lloyd
Regional Environmental Officer
Environmental Sustainability Branch
Minerals & Energy Division
Industry & Investment NSW
PO Box 344
Hunter Region Mail Centre
NSW 2310
[email protected]
Dear Sir,
Reference: REF ? Clarence Moreton Resources P/L ? PEL 457 and PEL 479 ? Noise Control
Further to your communication with Mr Gillespie regarding the submission of noise control information as part
of the REF document I would like to provided the following information.
Noise Survey Results of Mindrill #7 Rig ? TDC Drilling Company
Date of Survey 06 August 2010
Survey Equipment: Digitech Sound Level Meter Model QM1592 complies with IEC 942 Class 2
Results: Results in dB (A weighted) and based on standard operating conditions. Primary noise
source is the rig motor. All measurements are based on distance from that source.
Location Results (dBA)
Rig Deck 97.6
End of pipe rack ‐ @ 5m 83.6
Far side of Mud Pump ‐ @ 200m 55.7
Open ground @ 200m 60.1
Back side of rig @ 500m 40.8
Pipe deck side of rig ‐ @ 500m 39.7
Off side pipe rack @ 500m 39.4
Well side of pipe rack @ 500m 40.3
These results are graphically illustrated over the page (Figure 1).
Figure 1;
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at 400 m
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ress: P.O. Box
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ydonia has en
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online.com.au
Guideline the
s a result the
premised on
e REF are at a
s to attenuate
g installations
n the noise s
ractice for thi
aller drilling c
s work will be
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e calculated n
re is an absen
the nearest
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e the noise thr
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is type of act
company to u
e done on a s
noise level
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undertake
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Cydonia Resources Pty Ltd
ABN 68 137 806 181
Postal Address: P.O. Box 329, Kippa‐Ring, QLD, 4021, Australia
Phone (m) +61 (0) 407 508 791, Email: [email protected]
As a result of the upper sections being carried out by a smaller drilling rig Cydonia will be able to confine the
necessary 24 hour operation of coring to approximately one week. It is important, from a safety perspective,
to provide continuous drilling operations when ?in coal ?. Gas is anticipated and it is critical that fluid
circulation and full well control is maintained throughout the coring cycle.
Overall the drilling program at a single location is not expected to exceed three weeks accumulated time.
I trust this information is adequate for the completion of the REF. Should you have any queries please contact
the undersigned on 0407 508 791.
Yours faithfully
PHILIP JACKSON
General Manager
CC ? R Gillespie, D Thomson, TDC