answers from Chicago on. Very tiny bugs coming up the drain that hop a little are probably springtales...I goggled tiny little bugs that hop when I first encountered them and that's what came up.
Detention basin. A detention basin or retarding basin is an excavated area installed on, or adjacent to, tributaries of rivers, streams, lakes or bays to protect against flooding and, in some cases, downstream erosion by storing water for a limited period of time.
1 Most dry detention ponds do not have a permanent pool of water. They are. designed only to be wet for short periods after a storm. If water persists, then. the pond is not functioning properly. Some dry detention ponds do contain a. small permanent pool of water to incorporate a wetland marsh area. A wetland.