Below are some clips that can't be categorized under the other video sections, but are important to observe because they can have an impact on the quality of the groundwater extracted from your well.
The above video shows a phenomenon called upwelling. You can see the black plume rising from the bottom of the well on the upper right of the video, this is water coming from a lower point into the well. The pressure from this lower source of water is higher than that of the well.
In this video suspended solids are present in the well water.  Suspended solids are typically not a health concern, but can indicate bacteria growth which may lead to staining of sinks, toilets, and clothes. Turbid (cloudy) water occurring after a heavy rain is an indication of increased suspended solids in your well water.  Increased turbidity indicates that surface water is entering your well through cracks or holes in the well casing.
The above video shows cloudy well water, which could be a sign of bacterial contamination or some other nuisance in the well.
In this video you can see the infiltration of a color causing substance, possibly iron, into the well. If it is iron that is infiltrating the well, that could cause problems for the well if iron bacteria are present.
This video shows a large horizontal fracture that has a strong flow of groundwater infiltrating the well.
 The above video shows a large verticle fracture on the upper left of the video, and you can discern a light flow of water from an above fracture coming down the right side of the well in the video.
In this video you can see a cave that the well borehole has intersected.
The above video shows a well in operation. You can see the water level dropping as the pump is turned on, and water flowing into the well, possibly from fractures in the surrounding bedrock.