Monitoring system with thermal probe for detection of layers in stratified media

A septic tank monitoring system for distinguishing between and identifying the location of a sedimentary layer, a scum layer, and any intervening liquid zone in a septic tank, the septic tank monitoring system comprising:

• an elongate sensing probe with a first end and a second end for being disposed in the septic tank;
• a plurality of sensors disposed along the sensing probe, the plurality of sensors each including a means for providing a signal that enables a determination of whether the sensor is disposed proximal to the sedimentary layer, the scum layer, or any intervening liquid zone in the septic tank wherein at least one of the plurality of sensors comprises a temperature transducer;
• and
• a remote monitor for being operably associated with the plurality of sensors wherein the remote monitor has a means for providing a remote indication to a septic tank operator of the location of the sedimentary layer, the scum layer, and any intervening liquid zone in the septic tank based on the signals from the plurality of sensors;
• whereby the septic tank operator can monitor the contents and condition of the septic tank without a need for excavating and physically inspecting the septic tank.