International Commission on Irrigation & Drainage Commission Interationale des Irrigation et du Drainage
4146. Absorbing well, Drain well, Dead well, or Negative well : 1 - A shaft or well driven through an impermeable stratum to allow surface water to drain through to a permeable one. 2 - See 2559 (drain well). | ||
SEE: Drain well, Relief well, or Pressure relief well, | ||