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Merimbula Sewage Treatment Plant Upgrade and Deep Ocean Outfall

Project Overview

Bega Valley Shire Council is taking action. Advice from the NSW Environment Protection Authority (EPA) and the community is the existing beach-face outfall and dunal exfiltration ponds at Merimbula Sewage Treatment Plant are not sustainable. Council is working with AECOM to develop a concept design and environmental assessment for a deep ocean outfall and upgrade of the STP.

Project Update - December 2018

We are continuing environmental investigations around Merimbula Bay to help our project team develop options for the deep ocean outfall and Sewage Treatment Plant upgrade. This will make our iconic beaches and lakes cleaner and improve public health. Click to read more.

Project update - February 2018

We are continuing our work on this long-term investment that will improve the water quality of our iconic coastal environment, from the beaches to the lakes.  

In November 2017, we introduced the project to the community to explain the project process and better understand your concerns. We did this through drop-in community information sessions and briefing sessions for key stakeholders. Thanks to everyone who gave us valuable feedback. We will use this to help develop the concept design.

Our community working group (CWG) is using your feedback to help select the location of the ocean outfall. The CWG first met in December and they will be visiting the STP site this month to better understand the plant’s current condition. They’ll meet again in March to continue assessing the possible location of the ocean outfall.

This month we’re doing our second dye dispersion test in the bay. We did our first test in August 2017. By testing at different times of year, we can get information on how currents behave in different water temperatures. To do this, we release a harmless, bright red fluorescent dye into the water at several locations. This shows our designers how waterborne materials travel and spread in the bay’s currents.

This March, we’ll have another round of drop-in community information sessions and briefing sessions for key stakeholders. At these sessions we’ll be able to give you more detail on the investigations we’ve done and the progress of the CWG.

We look forward to seeing you then!

View All
  • 2009

    Assessment of effluent disposal options

  • 2014

    Deep ocean outfall identified as preferred option

  • 2017

    AECOM starts working with Council

  • 2018

    Work continues with community and stakeholders to develop concept design

  • Next Steps

    Prepare an Environmental Impact Statement

  • Next Steps

    Project approval