This indicator relates to the water discharged and is used as 1 of 30 environment indicators from the Global Reporting Initiative (GRI) to measure sustainability. The Global Reporting Initiative provides a framework for organisations to report on sustainability. The framework is seperated in to 6 key areas; Economic, Environment, Labor Practice, Human Rights, Society and Product Responsibility. Further details relating to Global Reporting Initiative can be found here: https://www.globalreporting.org/information/sustainability-reporting/Pages/default.aspxhttp://www.ophi.org.uk/wp-content/uploads/MPI-2013-Brief-Methodological-Note-and-Results1.pdf?0a8fd7. This indicator is one out of the environment set of indicators producted by the Global Reporting Initiative used to provide a reporting framework for organisations to following when reporting on sustainability. This indicator should be used in connection with the other related environment indictors to create full picture of the environmental sustainability of an organisation.