You have been commissioned by your local Water Authority to develop a survey instrument that will assess previously unmeasured values of the services that the Water Authority provides to the households within the community in which it serves. The Water Authority hopes to develop an understanding of its "value" beyond the rates that are defined by the provision of potable water and the removal of waste-water (from households). The Water Authority intends to use the results of your survey to assist in the identification of economic impacts associated with things that generally, are not defined economically, and are not yet clearly understood, and the development of strategies to then formally measure those values. (Things like the value that society might place on having clean water).