How to replace Wind Shield washer Reservoir

I have a 2000 malibu and the battery leaked acid onto the wind shield washer reservoir. I am looking for the best way to get to it and how much trouble is it to replace? Thanks for any help.

I haven't taken it off but you have to remove the plastic cover under the fender jack up the car and remove the battery also the battery plate (where the battery sits). in order to remove it.