Default 4 column, 10 row table

Hydrologic soil group Infiltration rate (inches/hour) Soil textures Corresponding Unified Soil Classification
A 1.6a
  • gravel
  • sandy gravel
  • silty gravels
  • GW - well-graded gravels, sandy gravels
  • GP - gap-graded or uniform gravels, sandy gravels
  • GM - silty gravels, silty sandy gravels
  • SW - well-graded gravelly sands
0.8
  • sand
  • loamy sand
  • sandy loam

SP - gap-graded or uniform sands, gravelly sands

B 0.6 silt loam SM - silty sands, silty gravelly sands
0.3 loam MH - micaceous silts, diatomaceous silts, volcanic ash
C 0.2 Sandy clay loam ML - silts, very fine sands, silty or clayey fine sands
D <0.2
  • clay loam
  • silty clay loam
  • sandy clay
  • silty clay
  • clay
  • GC - clayey gravels, clayey sandy gravels
  • SC - clayey sands, clayey gravelly sands
  • CL - low plasticity clays, sandy or silty clays
  • OL - organic silts and clays of low plasticity
  • CH - highly plastic clays and sandy clays
  • OH - organic silts and clays of high plasticity