Iowa's Major Water Sources
- Surface Water
- Rivers, Streams
- Lakes, Ponds, Quarries
- lowa aquifers, from bottom to top:
- Alluvial Aquifer
- Buried Sand and Gravel Aquifer
- Dakota Aquifer
- Mississippiian Aquifer
- Silurian-Devonian Aquifer
- Upper Ordovician Aquifer
- “Jordan” or Cambrian-Ordovician Aquifer
“Unconsolidated” aquifers (glaciers and rivers)
Bedrock aquifers (shallow seas)