To OP:
As for what to expect to make in your first year under the current contract...
Started FT 10/14. $18.75/hr until 10/15, then $19.50
Many 2 & 3 day work weeks last winter until spring hit (Late March-Early April) Worked nearly every day the rest of the year except for 1 vacation week.
Grossed $48k for 2015. I think if you work the full year, your summer hours will help you make bank due to the overtime.
You should be well over $40k by the end of the year.