Stratigraphy

Start Depth
End Depth
Stratigraphic Unit
Start Depth: 0.00 ft
End Depth: 35.00 ft
Unit: Quaternary 
System
Quaternary 
Series
 
Group
 
Formation
 
Member
 
Submember
 
Start Depth
0.00 ft
End Depth
35.00 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
90 
Secondary Lithology
Loess 
Percent
10 
Tertiary Lithology
 
Percent
Comments
Start Depth: 35.00 ft
End Depth: 50.00 ft
Unit: Unknown 
System
Unknown 
Series
 
Group
 
Formation
 
Member
 
Submember
 
Start Depth
35.00 ft
End Depth
50.00 ft
Contact Accuracy
Contacts Poorly Defined Or Complete Gap 
Penetration
Complete Gap 
Primary Lithology
Unknown 
Percent
100 
Secondary Lithology
 
Percent
Tertiary Lithology
 
Percent
Comments
Start Depth: 50.00 ft
End Depth: 125.00 ft
Unit: Maquoketa 
System
Ordovician 
Series
 
Group
 
Formation
Maquoketa 
Member
 
Submember
 
Start Depth
50.00 ft
End Depth
125.00 ft
Contact Accuracy
Base Accurate, Top Less Accurate - (Poor Samples, Gap At Contact) 
Penetration
Bedrock Surface - Complete Penetration, Gap At Top 
Primary Lithology
Shale 
Percent
95 
Secondary Lithology
Dolomite 
Percent
Tertiary Lithology
 
Percent
Comments
Start Depth: 125.00 ft
End Depth: 150.00 ft
Unit: Dubuque 
System
Ordovician 
Series
 
Group
Galena 
Formation
Dubuque 
Member
 
Submember
 
Start Depth
125.00 ft
End Depth
150.00 ft
Contact Accuracy
Top & Base Accurate For Sample 
Penetration
Complete Penetration, No Gaps 
Primary Lithology
Dolomite 
Percent
100 
Secondary Lithology
 
Percent
Tertiary Lithology
 
Percent
Comments
Start Depth: 150.00 ft
End Depth: 235.00 ft
Unit: Wise Lake 
System
Ordovician 
Series
 
Group
Galena 
Formation
Wise Lake 
Member
 
Submember
 
Start Depth
150.00 ft
End Depth
235.00 ft
Contact Accuracy
Top & Base Accurate For Sample 
Penetration
Complete Penetration, No Gaps 
Primary Lithology
Dolomite 
Percent
95 
Secondary Lithology
Limestone 
Percent
Tertiary Lithology
 
Percent
Comments
Start Depth: 235.00 ft
End Depth: 325.00 ft
Unit: Dunleith 
System
Ordovician 
Series
 
Group
Galena 
Formation
Dunleith 
Member
 
Submember
 
Start Depth
235.00 ft
End Depth
325.00 ft
Contact Accuracy
Top & Base Accurate For Sample 
Penetration
Complete Penetration, No Gaps 
Primary Lithology
Dolomite 
Percent
65 
Secondary Lithology
Limestone 
Percent
25 
Tertiary Lithology
Chert/Chalcedony 
Percent
10 
Comments
Start Depth: 325.00 ft
End Depth: 385.00 ft
Unit: Decorah 
System
Ordovician 
Series
 
Group
Galena 
Formation
Decorah 
Member
 
Submember
 
Start Depth
325.00 ft
End Depth
385.00 ft
Contact Accuracy
Top & Base Accurate For Sample 
Penetration
Complete Penetration, No Gaps 
Primary Lithology
Limestone 
Percent
85 
Secondary Lithology
Shale 
Percent
15 
Tertiary Lithology
 
Percent
Comments
Start Depth: 385.00 ft
End Depth: 440.00 ft
Unit: Platteville 
System
Ordovician 
Series
 
Group
Galena 
Formation
Platteville 
Member
 
Submember
 
Start Depth
385.00 ft
End Depth
440.00 ft
Contact Accuracy
Top & Base Accurate For Sample 
Penetration
Complete Penetration, No Gaps 
Primary Lithology
Limestone 
Percent
60 
Secondary Lithology
Dolomite 
Percent
35 
Tertiary Lithology
Shale 
Percent
Comments
Start Depth: 440.00 ft
End Depth: 495.00 ft
Unit: St. Peter Sandstone 
System
Ordovician 
Series
 
Group
Ancell 
Formation
St. Peter Sandstone 
Member
 
Submember
 
Start Depth
440.00 ft
End Depth
495.00 ft
Contact Accuracy
Top & Base Accurate For Sample 
Penetration
Complete Penetration, No Gaps 
Primary Lithology
Sandstone 
Percent
80 
Secondary Lithology
Shale 
Percent
15 
Tertiary Lithology
Dolomite 
Percent
Comments
Start Depth: 495.00 ft
End Depth: 643.00 ft
Unit: Prairie Du Chien 
System
Ordovician 
Series
 
Group
Prairie Du Chien 
Formation
 
Member
 
Submember
 
Start Depth
495.00 ft
End Depth
643.00 ft
Contact Accuracy
Top & Base Accurate For Sample 
Penetration
Partial Penetration (Base Not Met), Gap At Top 
Primary Lithology
Dolomite 
Percent
70 
Secondary Lithology
Shale 
Percent
20 
Tertiary Lithology
Chert/Chalcedony 
Percent
10 
Comments