Request to Amend Application and Response to Council's Information Request · MCU14/0009

Technical Note
1 Factory Street Pomona

Application No: MCU14/0009

Response to Council Information Request
Following the submission of a Material Change of Use application (reference: MCU14/0009) Noosa
Council issued an Information Request on 27 February 2014.

This Technical Note has been prepared to provide a response to Items 3, 4, 5 and 6 of this
Information Request.

Item 3 – Flooding and Drainage

The proposed buildings are to be constructed on stumps. These elevated structures will avoid the
impedance of flood waters within the site, as stated in Section 1.1 of the Stormwater Management
Plan prepared by AquaIntel.

Tod Consulting understand the concrete block fire walls will be removed below the proposed floor
level.

Therefore no flood study was deemed necessary for the site.

Item 4 – Stormwater Plan

Our subconsultant AquaIntel has prepared the attached Stormwater Management Plan for the site.

This report has been used by Tod Consulting to prepare the preliminary stormwater drainage design
to address this item.

In summary the proposed system consists of:

        27m2 bio-basin provided along eastern boundary to treat and improve stormwater quality prior
         to discharge to existing piped stormwater system;
        proposed 300mm diameter piped connection to proposed pit constructed over existing
         300mm diameter pipe, adjacent to the south eastern corner of the site;
        Bio-basin has been increased in depth to provide on-site stormwater detention, avoiding the
         need for above ground or buried water detention tanks (please note this separate to any
         rainwater tanks for water re-use that may be proposed by others);
        Kerb and grated trench drain provided along southern boundary – this will capture and convey
         the majority of stormwater run-off from the paved areas to the bio-basin;
        Existing and proposed roof water to be directed to bio-basin for treatment.


Item 5 – Frontage Works

Provision of a kerb and channel along the full frontage would have serious impact on the existing
internal pavement levels, especially on the existing Hill Street access. A level on the property
boundary 250mm higher than existing bitumen, as required by the standard cross-over detail, would
actually be higher than the floor level of the existing building.

In addition, in order to provide a standard cross-over substantial areas of existing concrete pavement
would need to be reconstructed.


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