Information Request OPW21 0315 · OPW21/0315

Officer: 	Laurie Schreck
Direct Telephone: 	07 53296290
Our Reference:	OPW21/0315
Your Reference:	02305P
22 November 2021
Franco De Pasquale
C/- Martoo Consulting
PO Box 1684
NOOSA HEADS QLD  4567
[email protected]
Dear Madam
Information Request
Planning Act 2016
I refer to your application and advise that Council requires further information to satisfactorily assess the proposal.
application details
Application No.	OPW21/0315
Street Address:	33 Wyuna Dr Noosaville Qld 4566
Real Property Description:	Lot 16 N 10576
Planning Scheme:	Noosa Plan 2020 (25 September 2020)
INFORMATION REQUIRED
The information requested is set out below:
Issue – Dewatering
The Dewatering Management Plan (DMP) has not considered and addressed all conditions provided by Council as concurrence agency for RAP21/0020.
Information Required
Update the DMP to fully reflect and address the requirements of the Council concurrence agency conditions for RAP21/0020. In particular:
Undertake additional soil and groundwater investigations and testing as required by Condition 22(a). Groundwater levels and soil profiles should be relative to m AHD;
Demonstrate, based on the additional testing, that actual or potential ASS will not be exposed as a result of the dewatering, as required by Condition 22(c) and (d);
Nominate project hold-points that will be attended by Council, as required by Condition 22(e). These should include the ‘initial pump-out’ and prior to commissioning the ultimate basement sump pump, at a minimum. It should be clearly stated that construction is not to proceed until all test results and recommendations have been provided to Council and agreement to proceed has been provided;
Provide a plan showing the estimated radius of the cone of depression and identify all property and infrastructure (public and private) located in this zone. Provide the dilapidation reports for this property and infrastructure as required by Condition 23;
Update the release criteria in Section 4.3 to comply with Condition 26; and
Nominate the proposed location for the groundwater monitoring bores, required to check for dewatering outside of the estimated cone of depression, as required by Condition 27.
Issue - Dewatering
Additional issues relating to the Dewatering Management Plan (DMP).
Information Required
Update the DMP to address the following:
Release point from the treatment system is to be over the revetment wall, not to the stormwater network;
Justify why a residence time of 32 minutes has been selected to size the secondary treatment tank;
Provide sizing for a tertiary treatment tank, given the high likelihood of fine metal precipitates needing to be removed prior to discharge;
Update the plan in Appendix C showing how the primary, secondary and tertiary treatment tanks can all be accommodated inside the property boundary;
Update the dewatering flowrate calculations based on the additional groundwater investigations and ensure that groundwater drawdown estimates are based on groundwater levels measured at high spring tide at the northern works extent (i.e. worst case). Update treatment system sizes accordingly; and
Given that the system may be operating for 24hr periods in a residential locality, provide specific noise criteria for the dewatering equipment and provide further management actions for how noise will be managed to prevent nuisance to adjacent residences. Noise criteria should be similar to that imposed for operational phase plant and equipment. The monitoring section of the DMP is to be updated to include daily noise monitoring, with results to be provided to Council.
Issue – SWMP
The Stormwater Management Plan does not include detail of downpipe connections from stormwater generated from the roof.
Information Required
Please include downpipe location/s and connections into the lawful point of discharge for the development.

due date for response to information request
The due date for providing the requested information is 02 March 2022. Email your response to [email protected]. Please advise Council of your response to this information request in accordance with section 13 of the Development Assessment Rules.
If you do not provide a response before the due date, it will be taken as if you have decided not to respond to the information request and Council will continue with the assessment of your application.
other details
You can follow the progress of this application online at www.noosa.qld.gov.au. The “Online Services” page can be accessed via "Quick Links" on the left hand side of the screen.
Should you have any further queries in relation to the above, please do not hesitate to contact me on the number above.
Yours faithfully,

Laurie Schreck
Development Engineer

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PO Box 141		P. (07) 5329 6500	[email protected]	
	TEWANTIN  QLD  4565	F. (07) 5329 6501	www.noosa.qld.gov.au
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