Well Yield, Water Demand, and Storage. Well yield is a sustainable rate of water flow, usually expressed in gallons per minute (gpm), that a well can draw continuously over an extended period.
From Wikipedia, the free encyclopedia. A lifestyle business is a business set up and run by its founders primarily with the aim of sustaining a particular level of income and no more; or to provide a foundation from which to enjoy a particular lifestyle.
While there is no single standardized definition, there are many opinions and beliefs as to what it means for a business to be sustainable. While the study of sustainability evolves, The Evergreen Group has decided to use the following definition: A sustainable business is one that operates in an environmentally responsible way. Its products and business processes are such that no negative environmental impact is felt as a result of their existence. The details of sustainable business lie in chemistry and material science, ecology and environmental science.