Remediation works

Remediation works

The NSW Environment Protection Authority (EPA) has declared the site as being significantly contaminated under Section 11 of the Contaminated Land Management Act 1997. Jemena are currently managing the contamination through implementation of a Voluntary Management Proposal (VMP). The VMP is an agreement between Jemena and the EPA which requires the site be remediated in accordance with the Remediation Action Plan (RAP).

The RAP governs the remediation works for the site. Broadly these works will consist of:

  • excavation of buried former gasworks infrastructure where required in order to remediate contamination;
  • ex-situ or in-situ treatment/stabilisation of contaminated soil;
  • excavation and removal of contaminated soil for treatment from the foreshore of Mulwaree River (along a portion of Council owned land); and,
  • construction of a low permeability barrier to reduce groundwater flow through residual contamination towards the Mulwaree River.

An important component of the project planning was consulting with the community. Jemena is committed to continue communications with the local community as we proceed with the remediation works,  now that the required project approvals have been met and work has commenced (as at November 2018).

 

Project Timeline to Date

Year

Details

1985

Goulburn gasworks ceased operation

1995

Preliminary Site Assessment of AGL Gas Company (NSW) Goulburn, Showroom and Depot Site

2000

Groundwater Investigation of the former gasworks site (EES)

2012

Environmental Site Assessment (Coffey)

2012

Review of Supplementary Desktop Information (Coffey)

2013

Site Declared as significantly contaminated land under CLM Act, 1997

2014

Detailed Site Investigation (Coffey)

2014

Voluntary Management Proposal (VMP) entered into between Jemena and EPA

2014

Additional Detailed Site Investigation (Coffey)

2015

Building Footprint Investigation and Sediment Sampling Mulwaree River (Coffey)

2016

Detailed Site Investigation, (GHD)

2016

Draft RAP

2016

Update presentation to Local Council (remediation project direction and likely technologies)

2016

Update presentation to EPA (remediation project direction and likely technologies)

2017

Revised RAP & review by Auditor

2017

Meeting with Local Council – update on progress

2017

Remediation Action Plan (RAP) complete

2018

 

Statement of Environmental Effects (SEE) submitted

SEE on public exhibition

2018

Development Consent received from Goulburn Mulwaree Council (November 2018)

2018

Remediation works commenced on site (November 2018)

 

 

 

Moving forward, the following timeline is expected:

Timing

Details

Late 2019

Completion of remediation works

Late 2020

Completion of Validation Report, Site Audit Report and Site Audit Statement

Late 2020

Completion of VMP 3 and removal of Declaration over the Site