This article concern the possibilities of using quality management principles prescribed by the ISO 9000 for industrial wastewater management, with potential customers ecosystem receptors. The consideration of ecosystems as customers nevertheless raises sensitive issues such as the assessment of their needs. The territory is considered in terms of ecosystem services to identify human targets able to express their needs concerning their environment. These needs are then converted, according to local and regulatory data, in qualitative requirements for liquid emissions. This approach was materialized as a tool for industrials