RESPONSE TO FURTHER ADVICE - ADG1808.25 Dewatering Management Plan_Rev0_07.05.25 · MCU25/0054

                                                                                         ADG Consulting Pty Ltd


4        Water quality objectives
4.1      Receiving environment
         It is proposed to discharge extracted groundwater to a stormwater gully pit on William Street, 32 m to
         the south of the site (based on NSC Property Recreation Utilities Map, accessed 1 May 2025). The
         stormwater network in this location terminates approximately 73 m to the southwest of the site into the
         Noosa River off Noosa Parade (to be confirmed upon commissioning to site). The waterway in this
         location is mapped as a tidal canal, harbour or marina (DES, 2022). The receiving environment is
         connected to the Noosa River which ultimately connects to the Pacific Ocean. The following section
         establishes water quality objectives (WQOs) to ensure that the environmental values of the receiving
         waters are protected and maintained.
4.2      Development of water quality objectives
         WQOs have been developed to support and protect the designated environmental values (EVs) for the
         receiving environment. The WQOs are based on a moderately disturbed level of protection for estuarine
         (marine) waters in tidal canals, constructed estuaries, marinas and boat harbours. The WQOs have been
         developed with reference to the following guideline documents:

              Australian and New Zealand Guidelines for Fresh and Marine Water Quality 2018 (ANZG, 2018).
               Australian and New Zealand Governments and Australian state and territory governments, Canberra
               ACT, Australia, which supersedes Australian and New Zealand Guidelines for Fresh and Marine
               Water Quality, Australian and New Zealand Environment and Conservation Council and Agriculture
               and Resource Management Council of Australia and New Zealand (ANZECC/ARMCANZ). 2000.

              Environmental Protection (Water & Wetland Biodiversity) Policy 2019. Queensland Government.
               2019.

              Guidelines for Managing Risks in Recreational Water. Australian Government, National Health and
               Medical Research Council (NHMRC). 2008.

              Noosa River environmental values and water quality objectives. Department of Environment and
               Science (DES). 2022.

              Queensland Water Quality Guidelines, Version 3, September 2009. 2013. DEHP.

         The Australian and New Zealand Guidelines for Fresh and Marine Water Quality by the Australian and
         New Zealand Environment and Conservation Council and Agriculture and Resource Management Council
         of Australia and New Zealand (ANZECC/ARMCANZ, 2000), has undergone review, with the publication of
         the 2018 version. The revised Australian and New Zealand Guidelines for Fresh and Marine Water Quality
         2018 is a joint initiative between the Australian and New Zealand Governments and Australian state and
         territory governments (ANZG, 2018) and supersedes the ANZECC/ARMCANZ 2000 publication. Where
         ANZECC/ARMCANZ (2000) is referenced, the relevant sections are still relevant and consistent with the
         updated ANZG 2018 publication, as referenced in the ANZG 2018 publication.

         The Queensland Water Quality Guidelines 2009 (DEHP, 2013) was made pursuant to the provisions of the
         Environmental Protection (Water) Policy 1999 (the EPP(Water)), which is a subordinate legislation under
         the Environmental Protection Act 1994 and was developed as the State response to the
         ANZECC/ARMCANZ (2000) Guidelines. This has been further superseded by EPP (Water and Wetland
         Biodiversity) 2019 which provides a framework for:
             Identifying environmental values for Queensland waters, and deciding the water quality objectives
              to protect or enhance those environmental values; and

             Including the identified environmental values and water quality objectives under Schedule 1 of the
              EPP (Water).
         WQOs are long term goals for surface water quality management. They are indicators established for
         receiving waters to support and protect the designated Environmental Values (EVs) for those waters. DES

    ADG1808.25 Dewatering Management Plan_Rev0_07.05.25                                                   Page 6