With the growing responsibilities that wastwater processing plants are obtaining a good idea for these plants is to include community resources in their physical plants.  As explained in this article a great example of this new idea is in Olympia, Washington.  This sewage treatment plant, built LEED platinum certified, teaches visitors a mini-lesson in water conservation with every trip.  The use of recycled water from the roof and pond operates the toilets in all of the bathrooms in the facility.  Other examples include nature walks into water processing plants in New York.  These processing plants not only bring community interest with their structure design, they also bring a bit of education to the public on the imporantance of water waste and purification and recylcing. 

http://cleantechnica.com/2010/08/23/meet-your-friendly-neighborhood-sewage-treatment-plant/