Storm & Flood Damage Recovery in Bloomington, IN

That pattern points at a solution feature rather than seepage. Karst drainage moves quickly, so when a channel in the rock is running it can deliver a substantial flow into an excavation that intersects it, and then stop just as fast when the pulse passes. Seepage from saturated soil behaves the opposite way, arriving slowly and continuing for days. The timing tells you which one you have and therefore what remedy makes sense.

That is the highest-risk configuration in this city and it is straightforward to manage. A supply failure in an empty house runs until someone arrives, and a summer break is long. Shutting off the water when a unit is vacant costs nothing, and a flow-based automatic shutoff is worth the money across several properties. Neither prevents the failure; both cap the volume, which is what determines the size of the loss.

Not from the surface, which is the difficulty. Karst is irregular by nature, and neighboring lots can be completely different with no visible sign. What is informative is history: whether the basement has taken water before, how quickly it arrived, and whether any depressions have appeared in the yard. Where the question really matters, a geotechnical investigation is the only way to answer it properly.