In all cases, the users should be paying all of the costs.
Aviation ..... Aircraft owners should pay those costs.
Dams ....... Power companies should pay the costs based on electricity generated in hydro-electric dams.
Hazardous Waste ..... Companies and individuals who produce waste should pay for its disposal .
Schools ...... That's big can of worms. Maybe a barrel of snakes. Students (or their parents) of all ages should pay a tuition.
Transit. ..... Riders should pay full costs.