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Toledo Zoo

PROJECT: Toledo Zoo Tunnel Resteration

TEST:  Electronic Leak Detection of Waterproofing

LOCATION: Toledo, Ohio

MATERIAL: Cold Fluid Applied Waterproofing

CHALLENGE:  Tested Large Entrance Areas


Concrete slab with waterproofing was tested.


The inside of the tunnel system during construction.

Electronic Leak Detection (ELD) may also be referred to as: Membrane Integrity Survey, Membrane Integrity Testing, Moisture Survey, EFVP, LV-ELD, Electronic Breach Detection, Low Voltage Testing, High Voltage Testing, Electrical Conductance Testing, Electronic Water Test, Electric Field Vector Mapping, EFVM, Spark Testing, Holiday Testing

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