Stratigraphy

Start Depth
End Depth
Stratigraphic Unit
Start Depth: 0.00 ft
End Depth: 55.00 ft
Unit: Pleistocene Series 
System
Quaternary 
Series
Pleistocene Series 
Group
 
Formation
 
Member
 
Submember
 
Start Depth
0.00 ft
End Depth
55.00 ft
Contact Accuracy
Unknown 
Penetration
Unknown 
Primary Lithology
 
Percent
Secondary Lithology
 
Percent
Tertiary Lithology
 
Percent
Comments
Start Depth: 55.00 ft
End Depth: 93.00 ft
Unit: Little Cedar 
System
Devonian 
Series
 
Group
Cedar Valley 
Formation
Little Cedar 
Member
 
Submember
 
Start Depth
55.00 ft
End Depth
93.00 ft
Contact Accuracy
Unknown 
Penetration
Unknown 
Primary Lithology
 
Percent
Secondary Lithology
 
Percent
Tertiary Lithology
 
Percent
Comments
Start Depth: 93.00 ft
End Depth: 125.00 ft
Unit: Davenport 
System
Devonian 
Series
 
Group
Wapsipinicon 
Formation
Pinicon Ridge 
Member
Davenport 
Submember
 
Start Depth
93.00 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: 145.00 ft
Unit: Spring Grove 
System
Devonian 
Series
 
Group
Wapsipinicon 
Formation
Pinicon Ridge 
Member
Spring Grove 
Submember
 
Start Depth
125.00 ft
End Depth
145.00 ft
Contact Accuracy
Unknown 
Penetration
Unknown 
Primary Lithology
 
Percent
Secondary Lithology
 
Percent
Tertiary Lithology
 
Percent
Comments
Start Depth: 145.00 ft
End Depth: 160.00 ft
Unit: Kenwood 
System
Devonian 
Series
 
Group
Wapsipinicon 
Formation
Pinicon Ridge 
Member
Kenwood 
Submember
 
Start Depth
145.00 ft
End Depth
160.00 ft
Contact Accuracy
Unknown 
Penetration
Unknown 
Primary Lithology
 
Percent
Secondary Lithology
 
Percent
Tertiary Lithology
 
Percent
Comments
Start Depth: 160.00 ft
End Depth: 190.00 ft
Unit: Otis 
System
Devonian 
Series
 
Group
Wapsipinicon 
Formation
Otis 
Member
 
Submember
 
Start Depth
160.00 ft
End Depth
190.00 ft
Contact Accuracy
Unknown 
Penetration
Unknown 
Primary Lithology
 
Percent
Secondary Lithology
 
Percent
Tertiary Lithology
 
Percent
Comments
Start Depth: 190.00 ft
End Depth: 315.00 ft
Unit: Scotch Grove 
System
Silurian 
Series
 
Group
 
Formation
Scotch Grove 
Member
 
Submember
 
Start Depth
190.00 ft
End Depth
315.00 ft
Contact Accuracy
Unknown 
Penetration
Unknown 
Primary Lithology
 
Percent
Secondary Lithology
 
Percent
Tertiary Lithology
 
Percent
Comments
Start Depth: 315.00 ft
End Depth: 360.00 ft
Unit: Hopkinton 
System
Silurian 
Series
 
Group
 
Formation
Hopkinton 
Member
 
Submember
 
Start Depth
315.00 ft
End Depth
360.00 ft
Contact Accuracy
Unknown 
Penetration
Unknown 
Primary Lithology
 
Percent
Secondary Lithology
 
Percent
Tertiary Lithology
 
Percent
Comments
Start Depth: 360.00 ft
End Depth: 376.00 ft
Unit: Blanding 
System
Silurian 
Series
 
Group
 
Formation
Blanding 
Member
 
Submember
 
Start Depth
360.00 ft
End Depth
376.00 ft
Contact Accuracy
Unknown 
Penetration
Unknown 
Primary Lithology
 
Percent
Secondary Lithology
 
Percent
Tertiary Lithology
 
Percent
Comments
Start Depth: 376.00 ft
End Depth: 385.00 ft
Unit: Maquoketa 
System
Ordovician 
Series
 
Group
 
Formation
Maquoketa 
Member
 
Submember
 
Start Depth
376.00 ft
End Depth
385.00 ft
Contact Accuracy
Unknown 
Penetration
Unknown 
Primary Lithology
 
Percent
Secondary Lithology
 
Percent
Tertiary Lithology
 
Percent
Comments