SENSOR DDS^® - Technology Trusted by the Whole World

Sensor is one of the global leaders in the field of detection and precise location of geomembrane leaks. Since 1990, it has been developing and deploying advanced SENSOR DDS^® systems that protect the environment, water resources and critical infrastructure in demanding industries - from landfills, hydraulic structures and the mining industry to the oil, gas, energy, agricultural and construction sectors. The company’s technologies have been used in more than 49 countries worldwide, on more than 1,700 projects, and protect more than 17 million m² of geomembranes.

Sensor is a global leader in the field of detection and precise location of geomembrane leaks. For more than 35 years, it has been developing and deploying SENSOR DDS® technology, which helps protect the environment in industries such as water management, mining, landfills and construction. The company’s solutions have been implemented in countries around the world.

World leader in leak detection for geomembranes and waterproofing - ELL since 1990

Sensor DDS® since 1990

Pregnant Pond

SENSOR DDS® MIT Exposed Liner Integrity Testing on a Pregnant Pond at a Gold Mine

Pregnant ponds are among the most critical ponds in the mining process. They are used to store chemical solutions containing gold and copper. Due to the aggressive nature of the stored chemicals, no leakage is acceptable in these ponds. A pregnant pond usually consists of two layers of HDPE or LDPE geomembrane. The lower layer is called the secondary geomembrane, while the upper layer is the primary geomembrane.

A SENSOR DDS® leak detection system should always be installed between the primary and secondary geomembrane liners to ensure that no chemicals can escape through either liner into the subgrade. Immediate leak notification is required for this type of structure, which is why the continuous monitoring system SENSOR DDS® RMS or SENSOR DDS® CMS is suitable for pregnant pond applications.

For a one-time integrity inspection of the primary and secondary geomembrane liners, we can use our portable SENSOR DDS® MIT Arc Tester systems for exposed geomembrane testing. To test the primary liner, Sensor conductive geotextile must be installed between the primary and secondary geomembrane liners.

Global Leader Since

Arc Tester – SENSOR DDS® MIT

General project information:

Total pond area: 120,000 m²
Two layers of 1.5 mm HDPE geomembrane liner
SENSOR DDS® MIT Arc Tester was used for exposed liner testing of both the primary and secondary geomembrane liners
42 defects identified

During the exposed geomembrane inspection on the Pregnant Pond project, a total of 42 defects were identified and precisely located. On the secondary liner, 23 defects were diagnosed, consisting mainly of mechanical cuts and poor-quality extrusion welds. The primary liner showed 19 defects of similar character and origin.

After successful verification of all completed repairs and the final inspection of the entire area, an integrity certificate was issued, confirming the watertightness and full integrity of both liner layers.

Project summary for Arc Tester SENSOR DDS MIT geomembrane integrity inspection with 42 identified defects

Showing Slide 1 of 2: Detailed geomembrane defect analysis report with seam damage example and SENSOR DDS inspection data

Pregnant Pond

SENSOR DDS® MIT Exposed Liner Integrity Testing on a Pregnant Pond at a Gold Mine

Arc Tester – SENSOR DDS® MIT

Comprehensive Services by SensorGroup

Periodic Waterproofing Monitoring

Continuous Waterproofing Monitoring

Covered Geomembrane Testing

Exposed Geomembrane Arc Testing