Case studies       Massachusetts Audobon         Figure 7   Figure 8       At the Massachusetts Audubon, in Wellfleet Cape Cod here in Figure 7 and 8 the requirement placed on the designers was a no-discharge system. The final design came back with composting toilets, which the fertilizer and compost created are used in the flowerbeds through out the property. The greywater system is for the irrigation of all the planting beds and the filtration system is within the building to create a very comfortable setting for the workers and the visitors.