Geomembrane Liner Projects
Design, Supply, Installation & Testing

Dam Liner  & Floating Cover

Portland

​Jan 2021 – Jul 2022
​Pond Size: 8,000 m2​

Construction Quality Control:

Geotest are currently engaged by Wannon Water to carry out design, supply and installation of a new floating cover and dam liner at Portland, Victoria. This included removal of the existing cover and dam liner.

Design Constultant:

Geotest also acted as a design consultant for the installation and material.

Bituminous Geomembrane (BGM) Liner

Ravenswood Goldmine

​Apr 2021 – Feb 2022
​Mine Size: 750,000 m2​

Queensland

Installation:

Geotest were engaged by Ravenswood to carry out Level 1 CQA supervision over the client supplied bituminous geomembrane (BGM)  liner. Installation crew worked under the careful supervision for safely installing the liner. They are using specialist hydraulic BGM deployment equipment.

HDPE Geomembrane Liner

Kalimna Dam

​Feb 2021 – Apr 2021
​Pond Size: 44,000 m2​

South Australia

Supply and Installation of dam liner:

Geotest were engaged by Hunter Brothers to carry out supply and installation of 60,000 m2 of HDPE geomembrane liner. Electrical leak detection test of liner for HDPE liner.

Talinga – Pond D

​Oct 2016 – Dec 2016
​Pond Size: 150,000 m2​

Queensland

Construction Quality Assurance:

Geotest were engaged by Origin Energy to carry out level 1 CQA supervision over the installation of the triple layer geomembrane installation.

Third Party Testing:

Geotest were engaged by the installer to carry out the third party leak detection survey of the secondary and the primary liner in accordance with ASTM D 7703 ‘Water lance method’.

Research & Development:

Geotest were engaged by Origin Energy to carry out R&D on the alternative non-destructive testing (NDT) available. Ultra-sonic testing and development of the technology was carried out onsite on the installed geomembranes.

HDPE Geomembrane Liner

Phillip Pond

Phase II – Surat North
Jun-Dec 2016
Pond Size 28,000 m2

Queensland

Independent Testing Authority:

Geotest were engaged by the installer to carry out the level 1 CQA/CQC supervisor of the single layer 2.00 mm HDPE liner.

Construction Quality Assurance:

Geotest were engaged by the installer to compile and review the final material data reports (MDR). Including As-built drawings and all installation QA/QC reports.

Third Party testing:

Geotest were engaged by the installer to carry out the ‘Liner Integrity Testing’ (LIT) of the installed liner.

HDPE Geomembrane Liner

Phase II – Surat North
Charlie Pond

Jun-Dec 2016​
Pond Size: 40,000 m2

Queensland

Independent Testing Authority:

Geotest were engaged by the installer to carry out the level 1 CQA/CQC supervisor of the single layer 2.00 mm HDPE liner.

Construction Quality Assurance:

Geotest were engaged by the installer to compile and review the final material data reports (MDR). Including As-built drawings and all installation QA/QC reports.

Third Party testing:

Geotest were engaged by the installer to carry out the ‘Liner Integrity Testing’ (LIT) of the installed liner.

HDPE Geomembrane Liner

Hill Dam
Gawler Re-use scheme

Apr – Jul 2016​
Pond Size 130,000 m2

South Australia

CQA/Design Consultant:

Geotest provided level 1 CQA supervisor for the single layer 2.00 mm HDPE liner installed to the ‘Hill Dam’ project for Bunyips Waters’ ‘Gawler Re-use scheme’ (GWRS). Geotest also acted as a design consultant for the installation and material expert.

Third Party Testing:

Geotest were engaged by the installer to carry out the ‘Electrical Leak Detection Testing’ (ELDT) in accordance with the technical specification to detect any defects missed during the contractors’ defect identification process.

HDPE Geomembrane Liner

Wingate Dam
Gawler Re-use scheme

Apr – May 2016​
Pond Size 5,000 m2

South Australia

CQA/Design Consultant:

Geotest provided level 1 CQA supervisor for the single layer 2.00 mm EPDM liner installed to the ‘Wingate Dam’ project for Bunyips Waters’ ‘Gawler Re-use scheme’ (GWRS).​

Geotest also acted as a design consultant for the installation and material expert.

Talinga – Pond C

​Oct 2015 – Jan 2016​
Pond Size 130,000 m2

Queensland

Construction Quality Assurance:

Geotest were engaged by Origin Energy to carry out level 1 CQA supervision over the installation of the triple layer geomebrane.

Third Party testing:

Geotest were engaged by the installer to carry out the third-party leak detection survey of the secondary and the primary liner in accordance with ASTM D 7703 ‘Water lance method’.

HDPE Geomembrane Liner

Spring Gully Water Treatment

Facility Feed Dam West/East/Effluent-Pond A
Jun 2014 – Sep 2014

Queensland

Construction Quality Assurance:

Geotest was engaged for CQA by the installing contractor for Origin to install the triple liner on the three cell pond.

Third Party Testing:

Geotest was engaged to conduct the electrical leak detection of the single liner pond using the Water Lance Method, in accordance with ASTM D 7703.

Commissioning:

Geotest was engaged to assist in commissioning of all three cells, which included: Sump read outs to two sumps, water sampling and testing sump water and reporting any potential leaks for rectification.

HDPE Geomembrane Liner

Spring Gully Water Treatment Facility-Pond C

May 2014 – Feb 2015

Queensland

Construction Quality Assurance:

Geotest was engaged for the CQA from the installing contractor regarding the secondary liner, geonet leak detection system and the primary liner installation on the four cell pond.

Third Party Testing:

Geotest was engaged to conduct the electrical leak detection of the triple liner pond using the Water Lance Method, in accordance with ASTM D 7703 for the secondary liner and the Dipole Probe method, in accordance with ASTM D 7007 for the Primary Liner.

Commissioning:

Geotest was engaged to assist in commissioning of all four cells, which included: Sump read outs to all 16 sumps, water sampling and testing sump water and reporting any potential leaks for rectification.

Talinga Transfer Station

Nov 2014 – Dec 2014

Queensland

Construction Quality Assurance:

Geotest was engaged for the CQA on the installing contractor regarding the primary liner installation for the single liner system pond.

Third Party Testing:

Geotest was engaged to conduct the electrical leak detection of the single liner pond using the Water Lance Method, in accordance with ASTM D 7703.

HDPE Geomembrane Liner

Condabri – Brine Pond 2

Feb 2015 – May 2015

Queensland

Construction Quality Assurance:

Geotest was engaged by civil contractor for CQA on the installation for the secondary, geonet leak detection system and primary liner installation.

Third Party Testing:

Geotest was engaged for electrical leak detection of the secondary and primary liner using the Water Lance Method, in accordance with ASTM D 7703.

HDPE Geomembrane Liner

Condabri – Brine Pond 5 & 6

Jun 2015 – Oct 2015

Queensland

Electrical Leak Detection:

Geotest was engaged to conduct the electrical leak detection of the triple liner pond using the Water Lance Method, in accordance with ASTM D 7703 for the secondary liner and the Water Probe method, in accordance with ASTM D 7007 for the Primary Liner.