wellpoint

/ˈwɛlˌpɔɪnt/
noun
  1. A pipe or tube with a pointed end and small holes, driven into the ground to collect water from underground sources, often used in construction or dewatering.
    • The construction crew installed a wellpoint to lower the groundwater level before digging the foundation.
    • Farmers sometimes use a wellpoint to access shallow groundwater for irrigation.
    • The engineer checked the wellpoint system to ensure it was pumping water away from the excavation site.