The only number I had was pump station #6 at 850 cuft/sec.Where did you get that unrealistically low number from anyway?
Pump station #6 shows to have:
a) seven (7) 14' 1000 CF/s A. B. Wood screw pumps and
b) two (2) 12' 550 CF/s A. B. Wood screw pumps;
that is 8100 CF/s right there ...
Internet article on the recent upgrades to pumping station #6. But I'd never find it again.
Sounds like there's plenty of pumping power available and people take their little bilge pumps home.