The loss of water in transit from a reservoir, point of diversion, or ground water pump (if not on farm) to the point of use, whether in natural channels or in artificial ones, such as canals, ditches, and laterals.
IRRIGATION CONVEYANCE LOSS AND WASTE
Meaning of IRRIGATION CONVEYANCE LOSS AND WASTE in English
Environmental engineering English vocabulary. Английский словарь экологического инжиниринга. 2012