New to Green

I have not worked with landscaping much before so, I have been looking into ideas that I could use in my project since I have the issue of the site being mostly 'hardscape' which makes grey water an issue for the users. I am interested in making my project as healthy as possible for the users/visitors as well as the environment. Designing ways for the grey water to be useful is one way of completing that task. The following images are examples I pulled to teach myself more about 'green' design. Moving forward as I develop my project, I will revisit these and apply them to my site and buildings.

http://www.phillywatersheds.org/what_were_doing/gsdm