The average annual supply of a water development system over a long period. For a dedicated natural flow, it is the long-term average natural flow for wild and scenic rivers or it is Environmental Flows as required for an average year under specific agreements, water rights, court decisions, and congressional directives.
AVERAGE YEAR WATER SUPPLY
Meaning of AVERAGE YEAR WATER SUPPLY in English
Environmental engineering English vocabulary. Английский словарь экологического инжиниринга. 2012