|
Stratigraphic unit
|
Hydrogeologic unit
|
Conceptual hydrogeologic model
|
|---|---|---|
|
Upper alluvium/loess
|
Confining unit
|
Shallow aquifer system
|
|
Lower alluvium-fluvial deposits
|
A1 aquifer (southwest of
erosional scarp)
|
|
|
Cockfield Formation
|
A1 aquifer (northeast of
erosional scarp)
|
|
|
Confining unit
|
||
|
Cockfield aquifer
|
||
|
Cook Mountain Formation
|
Confining unit
|
Base of shallow aquifer
system
|
|
Memphis Sand
|
Memphis aquifer
|
Deep aquifer system
|