Transcript LNAPL Trial - Transpacific

Tullamarine
Rehabilitated
Landfill
> 27 November 2013
Tullamarine Landfill Rehabilitation
Task Progress Update
> Light Non Aqueous Phase Liquid (LNAPL) Trial
Update on Progress
> Flare Update on Progress
> Buffer Land Environmental Audit Progress
> Landscaping Plans
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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
Prepared by URS, 2013
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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
Sealed
Area
Enclosed
Well Head
Assembly
Vapour
Flared
Tank (1 m3)
Cap
GACs 2x
Leachate
Well
Leachate
Well
Perforations
LNAPL
LNAPL thicker in well
Leachate
Pump (intake
positioned in
LNAPL)
Wellhead Assembly
Pump
Winch
Assembly
LNAPL
Return
Enclosure
Containment line
Prepared by URS, 2013
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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)
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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 Control
Noise
> 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
Outline
Design
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 Audit
Four 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
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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
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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1.
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2.
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Thank you
for your time