Mrs. Groundhog...aka Henry

Mrs. Groundhogs home away from home...
This is Henry... also known to us as Mrs. Groundhog. She has taken up residence under our storage shed and has decided that the best food for her and her babies (which we assume are under the storage shed, being that according to the internet groundhogs give birth in April and May to 4-6 babies at a time) is our brand new grass. Any helpful information to rid ourselves of this particularly friendly varmit would be appreciated.