2020-12-17 Ordinary Meeting Minutes

ORDINARY MEETING MINUTES                                                  17 DECEMBER 2020


              HYDROLOGY
              Stormwater Drainage
        54.   The site must be provided with a stormwater drainage system connecting to a
              lawful point of discharge. The works must be undertaken in accordance with an
              Operational Works approval.
        55.   A primary stormwater quality treatment system must be provided for the
              development for the effective removal of gross pollutants. The works must be
              undertaken in accordance with an Operational Works approval.
        56.   All primary stormwater quality treatment devices must be routinely checked,
              serviced and cleaned in accordance with the manufacturer’s recommendations.
              Records of all maintenance activities undertaken must be kept and made available
              to Council upon request.
        57.   A stormwater quality treatment system must be provided for the development. The
              works must be undertaken in accordance with an Operational Works approval and
              the Bioretention Technical Design Guidelines (Water by Design, 2012), and must
              include in particular stormwater quality treatment devices of a size and location
              generally in accordance with the approved Stormwater quality management plan
              ver 0, prepared by Callahan and Toth, with the exception of the following:
              a.   The Operational Works application must include an amended drainage
                   design, consistent with an updated MUSIC model that demonstrates that
                   drainage from Catchment A1, C and B1 are filtered through a vegetated
                   system, in lieu of the proposed GPT, to achieve the overall same reduction
                   in pollutants prior to release to stormwater; and
              b.   Demonstrate required amendments to the Stormwater Quality treatment train
                   continues to achieve overall development pollution reduction targets of 80%
                   reduction in Total Suspended Solids, 60% Reduction in Total Phosphorous
                   and 45% reduction in Total Nitrogen compared to pre-development scenario,
                   and that the peak 1-year ARI event discharge remains within pre-
                   development peak 1-year ARI discharge.
        58.   All stormwater quality treatment devices must be maintained in accordance with
              the Water by Design (2009) - Maintaining Vegetated Stormwater Assets (Version
              1). A copy of this document must be retained on the site together with the approved
              Operational Works drawings for the stormwater quality treatment system and a
              detailed life cycle costing of the system attached as an addendum. Records of all
              maintenance activities undertaken must be kept and made available to Council
              upon request.
        59.   Any proposed Community Management Statement required for the development
              must include the Water by Design (2009) – Maintaining Vegetated Stormwater
              Assets (Version 1) document and must include the full cost of maintaining the
              system in accordance with that document.
        60.   All water quality treatment features must include signage that states “This
              stormwater Quality Feature reduces nutrients flowing to Mary River, which drains
              to the Great Barrier Reef.” The application for Operational Works must include
              signage design and demonstrates how it is consistent with Noosa Design
              Principles.
              Stormwater Harvesting
        61.   Operating rainwater collection and harvesting tanks must be provided as shown in
              Section 4.2.2 and Section 5 of the Stormwater Quality Management Plan version
              0 prepared by Callahan and Toth and dated August 2019. The tanks must be
              provided in accordance with a Building Works approval.

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