Mike, the "unsupported romex" is actually UF -underground feeder - a continuation of the run to the well pump.

I confess that I did not look too closely at the A/C ... I was there on a sewage pump problem. My work did not involve anything 'outside the pit.'

A curious detail in the pit was that the pump was powered by the panel that you see. The alarm, however, was powered from another panel, on an entirely different service (meter), on a different building.

Rumor has it - I don't know this for a fact - that this was actually the home of the head of one of the local contractors' groups (We have at least four).