Stratigraphy

Start Depth
End Depth
Stratigraphic Unit
Start Depth: 0.00 ft
End Depth: 45.00 ft
Unit: Pleistocene Series 
System
Quaternary 
Series
Pleistocene Series 
Group
 
Formation
 
Member
 
Submember
 
Start Depth
0.00 ft
End Depth
45.00 ft
Contact Accuracy
Unknown 
Penetration
Unknown 
Primary Lithology
 
Percent
Secondary Lithology
 
Percent
Tertiary Lithology
 
Percent
Comments
Start Depth: 45.00 ft
End Depth: 102.00 ft
Unit: Little Cedar 
System
Devonian 
Series
 
Group
Cedar Valley 
Formation
Little Cedar 
Member
 
Submember
 
Start Depth
45.00 ft
End Depth
102.00 ft
Contact Accuracy
Unknown 
Penetration
Unknown 
Primary Lithology
 
Percent
Secondary Lithology
 
Percent
Tertiary Lithology
 
Percent
Comments
Start Depth: 102.00 ft
End Depth: 125.00 ft
Unit: Davenport 
System
Devonian 
Series
 
Group
Wapsipinicon 
Formation
Pinicon Ridge 
Member
Davenport 
Submember
 
Start Depth
102.00 ft
End Depth
125.00 ft
Contact Accuracy
Unknown 
Penetration
Unknown 
Primary Lithology
 
Percent
Secondary Lithology
 
Percent
Tertiary Lithology
 
Percent
Comments
Start Depth: 125.00 ft
End Depth: 143.00 ft
Unit: Spring Grove 
System
Devonian 
Series
 
Group
Wapsipinicon 
Formation
Pinicon Ridge 
Member
Spring Grove 
Submember
 
Start Depth
125.00 ft
End Depth
143.00 ft
Contact Accuracy
Unknown 
Penetration
Unknown 
Primary Lithology
Unknown 
Percent
Secondary Lithology
Unknown 
Percent
Tertiary Lithology
Unknown 
Percent
Comments
Start Depth: 143.00 ft
End Depth: 153.00 ft
Unit: Kenwood 
System
Devonian 
Series
 
Group
Wapsipinicon 
Formation
Pinicon Ridge 
Member
Kenwood 
Submember
 
Start Depth
143.00 ft
End Depth
153.00 ft
Contact Accuracy
Unknown 
Penetration
Unknown 
Primary Lithology
 
Percent
Secondary Lithology
 
Percent
Tertiary Lithology
 
Percent
Comments
Start Depth: 153.00 ft
End Depth: 320.00 ft
Unit: Scotch Grove 
System
Silurian 
Series
 
Group
 
Formation
Scotch Grove 
Member
 
Submember
 
Start Depth
153.00 ft
End Depth
320.00 ft
Contact Accuracy
Unknown 
Penetration
Unknown 
Primary Lithology
 
Percent
Secondary Lithology
 
Percent
Tertiary Lithology
 
Percent
Comments
Start Depth: 320.00 ft
End Depth: 375.00 ft
Unit: Hopkinton 
System
Silurian 
Series
 
Group
 
Formation
Hopkinton 
Member
 
Submember
 
Start Depth
320.00 ft
End Depth
375.00 ft
Contact Accuracy
Unknown 
Penetration
Unknown 
Primary Lithology
 
Percent
Secondary Lithology
 
Percent
Tertiary Lithology
 
Percent
Comments
Start Depth: 375.00 ft
End Depth: 406.00 ft
Unit: Blanding 
System
Silurian 
Series
 
Group
 
Formation
Blanding 
Member
 
Submember
 
Start Depth
375.00 ft
End Depth
406.00 ft
Contact Accuracy
Unknown 
Penetration
Unknown 
Primary Lithology
 
Percent
Secondary Lithology
 
Percent
Tertiary Lithology
 
Percent
Comments
Start Depth: 406.00 ft
End Depth: 415.00 ft
Unit: Maquoketa 
System
Ordovician 
Series
 
Group
 
Formation
Maquoketa 
Member
 
Submember
 
Start Depth
406.00 ft
End Depth
415.00 ft
Contact Accuracy
Unknown 
Penetration
Unknown 
Primary Lithology
 
Percent
Secondary Lithology
 
Percent
Tertiary Lithology
 
Percent
Comments