Stratigraphy

Start Depth
End Depth
Stratigraphic Unit
Start Depth: 0.00 ft
End Depth: 10.00 ft
Unit: Quaternary 
System
Quaternary 
Series
 
Group
 
Formation
 
Member
 
Submember
 
Start Depth
0.00 ft
End Depth
10.00 ft
Contact Accuracy
Top Accurate, Base Less Accurate - (Poor Samples, Gap At Contact) 
Penetration
Complete Penetration, Gap At Base 
Primary Lithology
Soil Or Fill 
Percent
100 
Secondary Lithology
 
Percent
Tertiary Lithology
 
Percent
Comments
Start Depth: 10.00 ft
End Depth: 15.00 ft
Unit: Pre-Illinoian 
System
Quaternary 
Series
Pleistocene Series 
Group
Pre-Illinoian 
Formation
 
Member
 
Submember
 
Start Depth
10.00 ft
End Depth
15.00 ft
Contact Accuracy
Contacts Poorly Defined Or Complete Gap 
Penetration
Complete Gap 
Primary Lithology
 
Percent
Secondary Lithology
 
Percent
Tertiary Lithology
 
Percent
Comments
Start Depth: 15.00 ft
End Depth: 20.00 ft
Unit: Peoria 
System
Quaternary 
Series
Pleistocene Series 
Group
Wisconsinan Episode 
Formation
Peoria 
Member
 
Submember
 
Start Depth
15.00 ft
End Depth
20.00 ft
Contact Accuracy
Top & Base Accurate For Sample 
Penetration
Complete Penetration, No Gaps 
Primary Lithology
Loess 
Percent
100 
Secondary Lithology
 
Percent
Tertiary Lithology
 
Percent
Comments
Start Depth: 20.00 ft
End Depth: 35.00 ft
Unit: Pleistocene Series 
System
Quaternary 
Series
Pleistocene Series 
Group
 
Formation
 
Member
 
Submember
 
Start Depth
20.00 ft
End Depth
35.00 ft
Contact Accuracy
Top & Base Accurate For Sample 
Penetration
Complete Penetration, No Gaps 
Primary Lithology
Sand And Gravel 
Percent
100 
Secondary Lithology
 
Percent
Tertiary Lithology
 
Percent
Comments
Start Depth: 35.00 ft
End Depth: 45.00 ft
Unit: Pre-Illinoian 
System
Quaternary 
Series
Pleistocene Series 
Group
Pre-Illinoian 
Formation
 
Member
 
Submember
 
Start Depth
35.00 ft
End Depth
45.00 ft
Contact Accuracy
Top & Base Accurate For Sample 
Penetration
Complete Penetration, No Gaps 
Primary Lithology
Till - Unoxidized And Unleached 
Percent
100 
Secondary Lithology
 
Percent
Tertiary Lithology
 
Percent
Comments