Maria Island from ground view with Darlington on the left hand side and water on the right hand side.
Darlington with water

Stage 3 - Maria Island Critical Infrastructure Upgrades

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​​​The Maria Island Rediscovered project is making progress, with the public now invited to have their say on Stage 3 of the project.

​The Stage 3 proposal consists of:​

  • Construction of a new centralised Wastewater Treatment Plant (WWTP) and effluent disposal system.
  • Decommissioning and site rehabilitation of the existing WWTP.
  • Service connections (including electricity, water and sewerage) to existing serviced buildings at Darlington.
  • Upgrades to the fire water main servicing the PWS houses.
  • Upgrades to the raw water supply pipeline.
  • Dredging of the Bernacchis Creek Reservoir to pre-flood capacity (which supplies raw water).
The site is located in Darlington, within the Maria Island National Park and the Darlington Probation Station – Australian Convict Sites World Heritage Area.  

Stages 1 and 2 of the project delivered a number of upgrades to the pressure sewer system infrastructure for the Darlington precinct and service corridors. Stage 2 also saw the completion of pressure sewer system reticulation works for the public amenities on the island, reopening of the jetty toilets, and completion of a new solar array and battery storage system to provide a sustainable energy supply for the island. Completion of Stage 3 works will see the final connections of critical infrastructure works completed in Stage 1 and 2. 

The Reserve Activity Assessment (RAA) document was prepared in accordance with PWS advice and specialist advice.  Natural and cultural values assessments were undertaken to avoid and limit potential impacts.  

Once complete, the critical infrastructure delivered through the Maria Island Rediscovered project will facilitate sustainable visitation to the Island into the future.

In 2021, the Tasmanian Government allocated funding to the Maria Island Rediscovered Project to complete necessary upgrades to the critical infrastructure on the Island.​

Project stages​​


​Stage 1 - Draft Reserve Activity Assessment (RAA) and supporting information accepted as suitable for public consultation.​

Stage 2 - Public consultation process advertised in three regional papers. Draft RAA and supporting information available on the ‘Have your say’ page of PWS website.


​Stage 3 – The period for making public submissions closed.  Final RAA prepared by the PWS, addressing comments received during the public consultation process.

​Stage 4 - Assessment of the final RAA completed. PWS prepares an Environmental Assessment Report (EAR) including the submission.


​Stage 5 - Final RAA, EAR and public submission published on the PWS website.

Key dates​

Public consultation open

  • ​Saturday, 4 ​March 2023

Close of consultation

  • Monday, 3 ​April 2023

Final RAA assessment completed

  • ​Monday, 22 April 2024

RAA, EAR and public submissions published

  • ​​Monday, 29 April 2024

​Environmental Assessment Report

 Environmental Assessment Report Maria Island Critical Infrastructure Upgrade Stage 3 RAA 4032  (PDF 632Kb)

​Reference documents