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(4221) Seepage surface
The portion of the well hole that is bounded on the lower edge by the water surface in the well and on the upper edge by the intersection of the aquifer free water surface with the well. Seepage surface, obviously, can exist only in non-artesian wells (illustrated).
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Irrigation
Drainage
Dictionary - Surface Drainage Systems Terms
- Surface water hydrology
- Subsurface ice, or Interstitial ice
- Drainage area, Drainage basin, River basin, Catchment area, Catchment basin, Catchment, Watershed
- Water parting, Drainage divide, Divide, Watershed divide, Watershed boundary, Topographic divide
- Yield of drainage basin, Annual yield of drainage basin
- Interflow, Subsurface runoff
- Subsurface flow, or Underground flow
- Drainage modulus, or Drainage coefficient
- Subsurface water, Underground water, or Subterranean water
- Isopiestic line, or Pressure surface contour
- Pressure surface map
- Piezometric surface, or Pressure surface
- Water surface (groundwater)
- Phreatic surface
- Potentiometric surface
- Water surface slope
- Surface float
- Subsurface float
- Surface water
- External drainage
- Surface acre
- Surface tension
- Surface tension
- Surface bend, or Free bend
- Topsoil, or Surface soil
- Internal drainage
- Bio-drainage
- Drainage head
- Endogenic drainage
- Allogenic drainage
- Endoreic drainage
- Areic drainage
- Exoreic drainage
- Surface curves
- Surface area of reservoir, or Maximum water surface area
- Water surface
- Normal water surface elevation, Normal water level, Conservation water level, Storage level, Normal pool level, or Conservation storage level
- Drainage gallery
- Drainage wells
- Horizontal drainage blanket, Pervious blanket, or Drainage filter
- Composite surface of failure
- Critical circle, or Critical surface
- Line of seepage, or Phreatic surface
- Soil classification systems
- Hydraulic rollers, Circular roller, Elliptical roller, Vertical roller, Horizontal roller, Inclined roller, Submerged roller, or Surface roller
- Surface type fixed-wheel gate
- Friction drag, Skin friction, or Surface drag
- Top width, or Surface width
- Natural surface line
- Natural surface level, or Ground levels
- Transition-curve length, Transition face length, Transition surface length, or Curved transition length
- Cross-drainage work, or Drainage crossing
- Level crossing, or Level drainage device
- Syphon aqueduct, Drainage syphon, Cross drainage culvert
- Drainage overpasses
- Venturi flume drainage crossing
- Straight (line, surface) sharp cut-water, Equilateral cut-water, or Sixty degree straight sharp cut-water
- Drainage culvert, or Supply culvert
- Integrated production systems
- Cross drainage
- Inverted drainage well, or Disposal well
- Free surface
- Equipotential surface
- Seepage surface
- Depleted pressure surface
- Depleted phreatic surface, or Depleted water table
- Isobath of the piezometric surface
- Fluctuation of the piezometric surface
- Cycle of the piezometric surface fluctuation
- Surface irrigation
- Irrigation through buried drains, Irrigation-drainage, or Vallenhove process
- Surface drip irrigation
- Surface filtration
- Surface runoff
- Drainage
- Drainage channel
- Artificial drainage
- Lowland drainage
- Agricultural land drainage
- Drainage system
- Closed-drainage area, Blind drainage area, or Non-contributing area
- Drainage benefit
- Degree of drainage
- Surface water
- Field drainage
- Field drainage system
- Land drainage
- Natural drainage system
- Seepage drainage
- Subsurface drainage system
- Open channel drainage
- Surface drainage
- Surface drains
- Main drainage system
- Drainage fittings
- Drainage pump sump
- Drainage trench
- Drainage head
- Horizontal subsurface drainage system
- Natural drainage or Natural drainage capacity
- Improved drainage or Artificial drainage
- Random drainage system
- Surface inlet
- Trenchless drainage
- Open-channel drainage
- Convergent drainage pattern
- Natural drainage systems, or Random drainage systems
- Cutoff drainage system, or Intercepting drainage system
- Herringbone drainage system
- Gridiron drainage system
- Double-main drainage system
- Composite drainage system
- Grouping drainage system
- Zigzag drainage system
- Surface-cum-seepage drains
- Cross-slope ditch system, or Drainage-type terraces
- Drainage-density
- Drainage pattern
- Superposed drainage, Super imposed drainage or Inherited drainage
- Subsurface drainage, Under drainage, Subsoil drainage, Underground drainage, or Covered drainage
- Relief drainage system
- Convergent drainage system
- Subsurface drain, Under drain, Covered drain, or Buried drain
- Elkington drainage system, Sink-hole drainage
- Rerolle drainage system
- Across-the-slope drainage system, or Keythrope drainage system
- Vertical drainage, or Inverted well
- Mole drainage
- Field surface drain
- Surface drainage system
- Drainage coefficient, Drainage modulus or Drainage design rate
- Drainage design rainfall
- Drainage efficiency
- Drainage season
- Free surface
- Phreatic surface
- Piezometric surface
- Subsurface run-off
- Surface flow
- Surface runoff
- Angular drainage pattern
- Arterial drainage
- Dendrite drainage
- Drainage boards (also called prefabricated drains)
- Slot drainage
- Radial drainage pattern
- Trellis drainage pattern
- Drainage density
- Vertical subsurface drainage system
- Drainage pumping station, Drainage pumping plant
- Surface retarders
- Surface moisture, or Free moisture
- Smoothing cement, or Surfacer paint
- Surface dressing, or Surface treatment
- Pneumatic butyl valve (for pipeline distribution systems)
- Surface erosion
- Surface sealing (of soil)
- Surface creep
- Drainage terrace, Drainage control terrace, Interception and diversion terrace, Runoff control terrace, or Channel terrace
- Biological systems
- Surface dump
- Surface irrigation
- Land drainage
- Design drainage rate
- Soil drainage status
- Excessive drainage
- Imperfect drainage
- Surface water problem
- Water‑gathering surface
- Water neutral surface
- Water‑spreading surface
- Underdrainage
- Singular layout drainage design
- Natural drainage layout
- Composite layout drainage system
- Mole drainage
- Free drainage
- Poor drainage
- Drainage basin
- Hydraulic effectiveness of flood control systems
- Systems analysis, Operational analysis, System engineering, Mathematical modeling, Management science
- Systems compatibility
- Systems engineering
- Systems integration
- Decision Support Systems
- Surface water body
- Subsurface geology
