tullamarine rehabilitated landfill > 27 november 2013
TRANSCRIPT
Tullamarine Rehabilitated Landfill
> 27 November 2013
Tullamarine Landfill Rehabilitation
2
Task Progress Update> Light Non Aqueous Phase Liquid (LNAPL) Trial
Update on Progress> Flare Update on Progress> Buffer Land Environmental Audit Progress> Landscaping Plans
LNAPL Trial Update
Key Changes Resulting from Community Input>Options for disposal explored>System redesigned so there is extra vapour treatment and no onsite storage or reinjection>Trial has a consultation period following first round of field trials to allow for greater level of feedback from Tullamarine community and stakeholders
LNAPL Distribution
4
Prepared by URS, 2013
LNAPL Trial Commencing Early 2014
Stage 1 Testing>All wells tested by removing 100 to 200 litres of LNAPL>Recovery (recharge) in each well measured over a period of approximately 4 weeks >Results reported back to Tullamarine Community Feb & May 2014>LNAPL destruction (3 facilities trialled)
LNAPL Stage 1 Testing
VapourFlared
Cap
LNAPL
Sealed Area
Tank (1 m3)
GACs 2x
Enclosed Well Head Assembly
Leachate
Leachate Well
Leachate Well Perforations
LNAPL thicker in well
Pump (intake positioned in LNAPL)
Wellhead Assembly
7
Prepared by URS, 2013
Pump Winch Assembly
Enclosure
LNAPL Return
Contain-ment line
Stage 2 Detailed Testing
> Tullamarine Community will be engaged on the process> Wells will be selected based recovery / recharge> Repeat of Stage 1 testing except each well will be
pumped continuously for approximately a week> Monitoring of yield & levels similar to Stage 1> LNAPL disposal same as Stage 1 (no reinjection or
storage)
LNAPL Trial (Completed Tasks)
Waste Disposal Approval
Independent Panel Review
LNAPL Trial Design Review
LNAPL Trial (Upcoming Tasks)> Procurement & Fabrication (Dec / January 2014)> Factory Testing & Commissioning (Feb 2014)> Well Integrity Testing (Feb 2014)> Rebound Monitoring (Feb / Mar 2014)> Data Analysis & Reporting (Mar / Apr 2014)> On track to commence field trial February 2014> Will report to the Tullamarine community the results in May
2014
Environmental Control
Vapour/ landfill gas>Sealed well heads during extraction;>System connected to landfill gas system and GAC vessels, 2 in series.
Spillage control>Double walled LNAPL collection/storage tanks;>Sealed work area around well head;>Secondary contained transfer hosing;
Environmental ControlNoise>Operations during business hours so no change to current conditions.
Monitoring:>Portable Landfill Gas and Trace Gas monitors>Samples of LNAPL, leachate & vapour obtained & analysed by laboratories
LNAPL Trial Summary> Design changes were made incorporating Tullamarine
Community suggestions> Field Trials to commence in February 2014 testing all
wells> The results will be reported to the community in February
and May 2014> The project includes LNAPL destruction trials
Enclosed Flare Proposal
URS Design Report Complete
URS Flare Emissions Model Complete
> Auditor Reviewing
> Flare will be installed by March 2014
Flare Design Update
Flare design includes :Emission testing ports Emissions analysis (including VOCs, such as Benzene and VC, and Dioxins) as part of commissioning process
Ports and analysis not an EPA requirement however TPI will commission.
Flare OutlineDesign
Rezoning
Public Exhibition until 9 December (this application relates to land rezoning)
S53X Audit Nearing Completion (this process is running in parallel to land rezoning process )
> Anticipate Audit statement completed early 2014> Separate applications would be submitted for individual
buildings and subdivision works which will be available for residents to view
Rezoning
Prepared by TPG, 2012
Environmental AuditFour Studies completed by Golder and Kleinfelder. Soil (Golder, 2012a & Kleinfelder, 2013) Vapour (Golder, 2012b & Kleinfelder, 2013) Groundwater (Kleinfelder, 2013) Landfill Gas (Kleinfelder, 2013)
> Auditor reviewing.
Buffer Land Investigation
Over 60 trial pits completed Five soil vapour bores (V01-V05) Groundwater Sampling completed Landfill Gas Risk Assessment
completed Studies demonstrate low to
negligible risk to future site users from soil, landfill gas, vapour & groundwater
Western Ave
Freeway
Wrig
ht S
t
Trial Pit Locations
Prepared by Kleinfelder, 2013
Groundwater Sample Locations
Prepared by Kleinfelder, 2013
Future Landscaping (Arcadian and Western Plains Flora)
Prepared by Golder, 2012
Stormwater Landscaping
Prepared by Ian Taylor, 2012
Stormwater Landscaping
Prepared by Ian Taylor, 2012
Landscaping
Prepared by Ian Taylor, 2012
Landscaping
Prepared by Ian Taylor, 2012
Stormwater Landscaping
Prepared by Ian Taylor, 2012
Disclaimer
This document has been prepared by Transpacific Industries Pty Ltd (ABN 40 010 745 383) (“Transpacific”) for the purposes of providing the recipient with an update on the status of rehabilitation works at Tullamarine landfill site. This document has been prepared on the condition that it is for the exclusive information and use of the recipient.
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