Leak detection system and method

A package assembly, comprising:

• an elongated package material;
• a mat base member in a rolled configuration and positioned within the package material, the mat base member including a bottom side and an upper side, the upper side including a plurality of projecting portions separated by a plurality of recessed portions, wherein when the mat base member is in an unrolled configuration the projecting portions have top edges that lie in a substantially horizontal common plane;
• a sensor within the package material for positioning within a liquid collection zone of the upper side of the rolled mat base member;
• and
• an alert device within the package material and configured for connection with the sensor, the alert device comprising a device for producing one or more of (i) an audible alarm, (ii) a visual alert or (iii) an electrical or electronic communication signal responsive to the sensor.

A leak detection mat arrangement, comprising:

• a substrate that captures and holds liquid at its upper side;
• at least one sensor for detecting liquid captured by the substrate;
• a leak detection alert device connected to sensor;
• a power source connected to power the sensor and the alert device;
• a recessed surface at the upper side of the substrate to enable liquid flow toward the sensor;
• and
• a support surface at the upper side of the substrate and formed by multiple projections having upper sides in a common, substantially horizontal support plane to allow liquid to flow into the recessed surface from or through the support plane.