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