2017-01-16 General Committee Meeting Notes

RECOMMENDATIONS ONLY – NOT THE FINAL DECISION OF COUNCIL
GENERAL COMMITTEE MEETING                                                  16 JANUARY 2017


                   Any repair work which proposes to alter the alignment or level of existing
                   services and assets must first be referred to the relevant service authority
                   for approval.
              Stormwater Drainage
        27.   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 and the Queensland Urban Drainage Manual, and
              must include in particular:
              a.   No adverse impact on other properties and the road’s footpath and grassed
                   verge (e.g. by diverting flows and/or blocking flows and causing additional
                   ponding)
              b.   The use of gravity stormwater drainage only and not surcharge pits or
                   pumps.
              c.   collection and discharge of stormwater to Taylor Court.
              d.   A stormwater detention system to manage peak flows for all storms up to
                   and including 1 in 100 years storm event
              e.   A stormwater quality treatment system. The stormwater treatment must
                   generally be in accordance with the Stormwater Management Plan For
                   Highway Service Centre Cooroy, project number 161968 by Covey
                   Associates, dated October 2016 except where alteration to impervious area
                   and water quality treatment dimensions are necessary to achieve the
                   following objectives as predicted in MUSIC modelling in accordance with
                   the Water by Design MUSIC modelling guidelines.

                                  State      Planning Environmental      Approved Plan of
                                  Policy              Protection Water Development
                                                      Policy       Water Water    Quality
                                                      Quality Objectives Criteria

                    Total         90%         reduction <6mg/L               90th%ile 15mg/L
                    Suspended     compared to an
                    Solids        unmitigated
                                  development

                    Total       60%         reduction Maximum 50ug/L         Maximum 0.03mg/L
                    Phosphorous compared to an
                                unmitigated
                                development

                    Total         45%         reduction Maximum 500 ug/L     Maximum 0.3mg/L
                    Nitrogen      compared to an
                                  unmitigated
                                  development

              f.   The development must include bins with educational signage material to
                   encourage patrons who purchase items that generate gross pollutants to
                   dispose of such items appropriately, and not where they may enter
                   stormwater systems.



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