Wife found water on the floor in the kitchen, adjacent to the sink.
After accusing her of splashing water out of the sink, upon further examination it was the dishwasher.
And it was coming from the dead center underneath, where the main sump pump lives. Fairly inaccessible short of moving the unit out, and it's hard wired to the circuit. Not sure there's even enough electric cord. I think I'm going to pay someone to fix this one rather than tackle myself.