Almost certainly too low. Likely under 100 cfs.
Most likley too low for whitewater.
At our listed put-in, drainage is about 22.7 square miles (as calculated by USGS StreamStats 4.0 Beta software). By our take-out, it is 27.4 sq.mi. (an increase of 21%).
Our 'reference gauge' is Plum Creek near Wrightstown (about 28 miles SW), with drainage at gauge of 21.2 square miles. Thus, *IF* watersheds are similar, and are hit fairly similarly by rains, flow on School Creek *could* be very near the reading on that gauge.