duck test and the USGS
If it looks like a duck, swims like a duck and quacks like a duck, then it probably is a duck.
There is a stream in my neighborhood that I've crossed weekly for 22 years, I've never seen it run dry. When reorienting a public facility near the creek our City took care to avoid environmental damage to this body of water (the creek flows into the Rivanna-James-Chesapeake Bay). The curious thing. USGS doesn't recognize the existence of Meade Creek. It is an unrecognized perennial stream. USGS recognized it back in 1935. Any USGS employees out there? Please explain.