Appendix C- Civil Engineering Report · MCU23/0135

WATER QUALITY & DRAINAGE CODE
Performance Criteria and Acceptable Solution
Noosa Civic Stage 2 Retail Development
29 September 2023

               PERFORMANCE OUTCOMES                                                ACCEPTABLE OUTCOMES                                                       RESPONSE

quality objectives are prescribed in Schedule 1 of the                 2. transferred off-site for treatment/disposal to an
Environmental Protection (Water) Policy 2009.                             appropriately licenced facility;
                                                                       3. reused on-site in a closed-cycle irrigation scheme,
                                                                          industrial processes, washing or cleaning or other
                                                                          purpose; or
                                                                       4. treated to meet the drinking water supply
                                                                          environmental values prior to release.

                                                                   Editor’s Note—The Plumbing and Drainage Act 2003 sets
                                                                   out requirements for wastewater management.

PO16                                                               AO16                                                               No onsite treatment systems are proposed as part of the
On-site effluent treatment and disposal systems are                                                                                   development.
designed, constructed and managed to not compromise the            An onsite effluent system and disposal area is:
environmental values of waters and water quality objectives.
                                                                      1.   not located on a slope greater than 1 in (10%);
                                                                      2.   not located at or below the 1% annual exceedance
                                                                           probability (AEP flood event);
                                                                      3.   not located within a riparian buffer area mapped on
                                                                           a Biodiversity, Waterways and Wetlands Overlay
                                                                           Map; and
                                                                      4.   setback 400 metres minimum from the full supply
                                                                           level of Lake Macdonald.

                                                                   Editor’s Note—The Plumbing and Drainage Act 2003 sets
                                                                   out requirements for on-site effluent treatment and
                                                                   disposal. The Queensland Plumbing and Wastewater Code
                                                                   and associated guidelines are used to confirm the suitability
                                                                   of each site to accommodate an on-site sewerage facility; or
                                                                   where a centrally located group collection treatment system
                                                                   is proposed, confirmation as to the suitability of the
                                                                   designated site to accommodate the on-site sewerage
                                                                   facility. Additionally, where the combined total peak design
                                                                   capacity of effluent treatment is less than 21 equivalent
                                                                   persons, the design of the system achieves a low to medium
                                                                   risk classification in accordance with Seqwater’s Land Use
                                                                   Risk Tool for onsite sewerage facilities.


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