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Bare Line Surveys

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  To avoid the logistics of flooding the geomembrane with water, the exposed geomembrane can be tested for leaks using a water puddle test. The bare liner test is to detect electrical current flowing through a hole in the geomembrane liner using a small amount of water that is temporarily placed in contact with the liner using a squeegee. Bare Line Surveys

Soil Surveys

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  The electrical leak location method is a powerful tool used to detect electrical paths through leaks in a geomembrane liner.Electrical measurements are then made on the soil or in the water to locate these points of current flow through the leaks. ASTM D6747 describes the various implementations of the method.Electrical leak location surveys are conducted on the primary or secondary geomembrane liners with water or soil covering the liner. Soil Surveys

ELIM System

  The ELIM system uses a series of electrodes placed on top of or underneath the geomembrane liner during liner installation. The electrodes are connected to an instrument panel used to make the electrical measurements. A data acquisition system collects and stores the data. The data is processed using advanced mathematical computer algorithms to calculate and display the positions of the leaks. ELIM System

Leak Location Services

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  The electrical leak location method is a powerful tool used to detect electrical paths through leaks in a geomembrane liner. A voltage is applied to an electrode placed in the soil or water covering the liner and to an electrode placed in the leak detection zone for double-lined systems or connected to earth ground for single-lined systems. Because the geomembrane liner is an electrical insulator, current will flow only through leaks in the liner. This current produces localized anomalous areas of high current density near the leaks. Leak Location Services

Leak Location Services

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The electrical leak location method is a powerful tool used to detect electrical paths through leaks in a geomembrane liner.Electrical measurements are then made on the soil or in the water to locate these points of current flow through the leaks. ASTM D6747 describes the various implementations of the method.Electrical leak location surveys are conducted on the primary or secondary geomembrane liners with water or soil covering the liner.   Leak Location Services

ASTM D6747

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  The electrical leak location method is a powerful tool used to detect electrical paths through leaks in a geomembrane liner.Electrical measurements are then made on the soil or in the water to locate these points of current flow through the leaks. ASTM D6747 describes the various implementations of the method.Electrical leak location surveys are conducted on the primary or secondary geomembrane liners with water or soil covering the liner. ASTM D6747

Bare Liner Surveys

  One output of an LLSI power supply is connected to earth ground or the GCL and the second output is connected to the scanning sensor through an LLSI electronic leak detection unit. When the water in the leak contacts earth ground or the GCL, a circuit is established and the electrical current will increase. Bare Liner Surveys