It sounds like the creek might exist solely because of your pond, not as a pre-existing body of water. Perhaps more of a drainage ditch, than a creek?

Somewhere down the line it may empty into another BOW, or it may just runoff and dissipate.

This thread has given me a lot to think about. I'll post my thoughts in a new thread so I don't hijack yours!

"Forget pounds and ounces, I'm figuring displacement!"

If we accept that: MBG(+)FGSF(=)HBG(F1)
And we surmise that: BG(>)HBG(F1) while GSF(<)HBG(F1)
Would it hold true that: HBG(F1)(+)AM500(x)q.d.(=)1.5lbGRWT?
PB answer: It depends.