Drainage area ~25 square miles.

This is a rather odd situation. Besides the immediately surrounding topography, the only inflow to Sunday Lake is the upper part of the Little Black River, which also flows out of the West end of the lake. However, at the NorthEast corner of the lake, there is a spillway into an culvert which tunnels underground 0.3 miles, where it emerges from the hillside along Hwy.28 immediately before passing under the highway.

Because of this 'dual outlet' to Sunday Lake, it is extremely difficult to predict the conditions under which to find adequate flow in Planter Creek. Suffice to say, there has to be a LOT of water around!