Stratigraphy

Start Depth
End Depth
Stratigraphic Unit
Start Depth: 0.00 ft
End Depth: 7.00 ft
Unit: Peoria 
System
Quaternary 
Series
Pleistocene Series 
Group
Wisconsinan Episode 
Formation
Peoria 
Member
 
Submember
 
Start Depth
0.00 ft
End Depth
7.00 ft
Contact Accuracy
Contacts From Driller's Log - Accurate 
Penetration
Complete Penetration, No Gaps 
Primary Lithology
Loess 
Percent
70 
Secondary Lithology
Sand 
Percent
30 
Tertiary Lithology
 
Percent
Comments
Start Depth: 7.00 ft
End Depth: 10.00 ft
Unit: Hickory Hills 
System
Quaternary 
Series
Pleistocene Series 
Group
Pre-Illinoian 
Formation
Wolf Creek 
Member
Hickory Hills 
Submember
 
Start Depth
7.00 ft
End Depth
10.00 ft
Contact Accuracy
Contacts From Driller's Log - Accurate 
Penetration
Complete Penetration, No Gaps 
Primary Lithology
Till - Oxidized And Leached 
Percent
100 
Secondary Lithology
 
Percent
Tertiary Lithology
 
Percent
Comments
Start Depth: 10.00 ft
End Depth: 11.00 ft
Unit: Hickory Hills 
System
Quaternary 
Series
Pleistocene Series 
Group
Pre-Illinoian 
Formation
Wolf Creek 
Member
Hickory Hills 
Submember
 
Start Depth
10.00 ft
End Depth
11.00 ft
Contact Accuracy
Contacts From Driller's Log - Accurate 
Penetration
Complete Penetration, No Gaps 
Primary Lithology
Till - Oxidized And Unleached 
Percent
100 
Secondary Lithology
 
Percent
Tertiary Lithology
 
Percent
Comments
Start Depth: 11.00 ft
End Depth: 13.00 ft
Unit: Hickory Hills 
System
Quaternary 
Series
Pleistocene Series 
Group
Pre-Illinoian 
Formation
Wolf Creek 
Member
Hickory Hills 
Submember
 
Start Depth
11.00 ft
End Depth
13.00 ft
Contact Accuracy
Contacts From Driller's Log - Accurate 
Penetration
Complete Penetration, No Gaps 
Primary Lithology
Till - Reduced And Unleached 
Percent
100 
Secondary Lithology
 
Percent
Tertiary Lithology
 
Percent
Comments
Start Depth: 13.00 ft
End Depth: 20.00 ft
Unit: Aurora 
System
Quaternary 
Series
Pleistocene Series 
Group
Pre-Illinoian 
Formation
Wolf Creek 
Member
Aurora 
Submember
 
Start Depth
13.00 ft
End Depth
20.00 ft
Contact Accuracy
Contacts From Driller's Log - Accurate 
Penetration
Complete Penetration, No Gaps 
Primary Lithology
Paleosol 
Percent
100 
Secondary Lithology
 
Percent
Tertiary Lithology
 
Percent
Comments
Start Depth: 20.00 ft
End Depth: 29.00 ft
Unit: Aurora 
System
Quaternary 
Series
Pleistocene Series 
Group
Pre-Illinoian 
Formation
Wolf Creek 
Member
Aurora 
Submember
 
Start Depth
20.00 ft
End Depth
29.00 ft
Contact Accuracy
Contacts From Driller's Log - Accurate 
Penetration
Complete Penetration, No Gaps 
Primary Lithology
Till - Oxidized And Leached 
Percent
100 
Secondary Lithology
Unknown 
Percent
Tertiary Lithology
Unknown 
Percent
Comments
Start Depth: 29.00 ft
End Depth: 44.00 ft
Unit: Aurora 
System
Quaternary 
Series
Pleistocene Series 
Group
Pre-Illinoian 
Formation
Wolf Creek 
Member
Aurora 
Submember
 
Start Depth
29.00 ft
End Depth
44.00 ft
Contact Accuracy
Contacts From Driller's Log - Accurate 
Penetration
Partial Penetration (Base Not Met), No Gap At Top 
Primary Lithology
Till - Oxidized And Unleached 
Percent
100 
Secondary Lithology
 
Percent
Tertiary Lithology
 
Percent
Comments