ELDS / Electrical Leak Detection Survey

At Terra Firma we provide ELDS / Electronic Leak Detection survey

Terra Firma Logo

The geomembrane you use in your project undergoes extensive quality assurance during the manufacturing stage to verify the physical and chemical properties against the project specifications and internationally accepted best practice guidelines. However, there are several factors that can damage the geomembrane and cause it to leak. Therefore, the leak detection of your installed geomembrane prior to use is extremely important and mandatory within most jurisdictions around the world.

A leak can be an invisible 0.5mm pinhole or a 2-meter tear under the cover material placed on top of the geomembrane. Our team uses internationally recognized electrical leak detection methods to find the defects on your geomembrane to give you the confidence of a leak free liner system and to help you obtain the licences and approvals.

Who, when, and where would require this knowledge?

  • During construction of a new landfill, tailings dam, storage pond
  • Mining operations
  • Design engineers who need information on how to make your design better suited for a leak detection survey.
  • Installers of waterproof roofing or floor/ base covers
Leak Detection Survey

Terra Firma Labs have been involved in construction quality assurance (C.Q.A) of all types of containment structures that includes landfills, water and leachate dams, and chemical storage ponds. We have a deep understanding of the structure from the earthen material used in the subgrade or clay liner to the geosynthetic barriers. So when we detect a leak, we also consider the whole liner system for possible cause and effect.

The ultimate purpose of a containment liner or a waterproof cover is to make sure you have 0% leaks in your system. Electrical Leak Detection survey is the best way you can check and assure this is achieved.

You may have a leak in your dam or landfill you need to find where it is to repair. A leaking liner can cause a whole lot of structural and environmental issues for your operations.

Survey duration depends on few factors,

  • Area of the liner system – A survey can take few hours to few weeks
  • Type of the survey required

ASTM D 7953 – Electrical Arc Testing

ASTM D 7007 – Dipole Testing

ASTM D 8265 – Dipole with Voltage Maps

ASTM D 7703 – Water Lance

ASTM D 7240 – Spark Testing

ASTM D 7002 – Water Puddle

Get In Touch

Contact us to find out more about our testing services that can meet the requirements for any construction project across Australia and the globe.

NATA - Accredited for Technical Competence

NATA Accredited

Terra Firma Laboratories has a broad scope of testing under our NATA accreditation, ensuring compliance to the highest standards of testing integrity