Stratigraphy

Start Depth
End Depth
Stratigraphic Unit
Start Depth: 0.00 ft
End Depth: 171.00 ft
Unit: Pleistocene Series 
System
Quaternary 
Series
Pleistocene Series 
Group
 
Formation
 
Member
 
Submember
 
Start Depth
0.00 ft
End Depth
171.00 ft
Contact Accuracy
Unknown 
Penetration
Complete Penetration, No Gaps 
Primary Lithology
Unknown 
Percent
100 
Secondary Lithology
 
Percent
Tertiary Lithology
 
Percent
Comments
Stratigraphic calls based on w#30000
Start Depth: 171.00 ft
End Depth: 182.00 ft
Unit: Cou Falls 
System
Devonian 
Series
 
Group
Cedar Valley 
Formation
Coralville 
Member
Cou Falls 
Submember
 
Start Depth
171.00 ft
End Depth
182.00 ft
Contact Accuracy
Unknown 
Penetration
Bedrock Surface - Complete Penetration, No Gaps 
Primary Lithology
Unknown 
Percent
100 
Secondary Lithology
 
Percent
Tertiary Lithology
 
Percent
Comments
Stratigraphic calls based on w#30000
Start Depth: 182.00 ft
End Depth: 236.00 ft
Unit: Rapid 
System
Devonian 
Series
 
Group
Cedar Valley 
Formation
Little Cedar 
Member
Rapid 
Submember
 
Start Depth
182.00 ft
End Depth
236.00 ft
Contact Accuracy
Unknown 
Penetration
Complete Penetration, No Gaps 
Primary Lithology
Unknown 
Percent
100 
Secondary Lithology
 
Percent
Tertiary Lithology
 
Percent
Comments
Stratigraphic calls based on w#30000
Start Depth: 236.00 ft
End Depth: 255.00 ft
Unit: Solon 
System
Devonian 
Series
 
Group
Cedar Valley 
Formation
Little Cedar 
Member
Solon 
Submember
 
Start Depth
236.00 ft
End Depth
255.00 ft
Contact Accuracy
Unknown 
Penetration
Complete Penetration, No Gaps 
Primary Lithology
Unknown 
Percent
100 
Secondary Lithology
 
Percent
Tertiary Lithology
 
Percent
Comments
Stratigraphic calls based on w#30000
Start Depth: 255.00 ft
End Depth: 280.00 ft
Unit: Davenport 
System
Devonian 
Series
 
Group
Wapsipinicon 
Formation
Pinicon Ridge 
Member
Davenport 
Submember
 
Start Depth
255.00 ft
End Depth
280.00 ft
Contact Accuracy
Unknown 
Penetration
Complete Penetration, No Gaps 
Primary Lithology
Unknown 
Percent
100 
Secondary Lithology
 
Percent
Tertiary Lithology
 
Percent
Comments
Stratigraphic calls based on w#30000
Start Depth: 280.00 ft
End Depth: 300.00 ft
Unit: Spring Grove 
System
Devonian 
Series
 
Group
Wapsipinicon 
Formation
Pinicon Ridge 
Member
Spring Grove 
Submember
 
Start Depth
280.00 ft
End Depth
300.00 ft
Contact Accuracy
Unknown 
Penetration
Complete Penetration, No Gaps 
Primary Lithology
Unknown 
Percent
100 
Secondary Lithology
 
Percent
Tertiary Lithology
 
Percent
Comments
Stratigraphic calls based on w#30000
Start Depth: 300.00 ft
End Depth: 301.00 ft
Unit: Kenwood 
System
Devonian 
Series
 
Group
Wapsipinicon 
Formation
Pinicon Ridge 
Member
Kenwood 
Submember
 
Start Depth
300.00 ft
End Depth
301.00 ft
Contact Accuracy
Unknown 
Penetration
Complete Penetration, No Gaps 
Primary Lithology
Unknown 
Percent
100 
Secondary Lithology
 
Percent
Tertiary Lithology
 
Percent
Comments
Stratigraphic calls based on w#30000