Do I have a coolant leak? on 1999 Chrysler Town & Country

I have a leak under the right rear of my van and it looks green, I think it is a coolant leak because I have to refill the coolant tank every few days. Is it expensive to repair it? Thank you.

DO NOT DRIVE THIS VECHICLE. Unless you want a new vehicle.
2 more answers
More then likely the rear heater core. It will be cheaper then the front unit.
pressure test cooling system for leaks