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 & Base Accurate For Sample 
Penetration
Complete Penetration, No Gaps 
Primary Lithology
Soil Or Fill 
Percent
100 
Secondary Lithology
 
Percent
Tertiary Lithology
 
Percent
Comments
Start Depth: 10.00 ft
End Depth: 50.00 ft
Unit: Hopkinton 
System
Silurian 
Series
 
Group
 
Formation
Hopkinton 
Member
 
Submember
 
Start Depth
10.00 ft
End Depth
50.00 ft
Contact Accuracy
Top & Base Accurate For Sample 
Penetration
Bedrock Surface - Complete Penetration, No Gaps 
Primary Lithology
Dolomite 
Percent
85 
Secondary Lithology
Chert/Chalcedony 
Percent
10 
Tertiary Lithology
Soil Or Fill 
Percent
Comments
Start Depth: 50.00 ft
End Depth: 95.00 ft
Unit: Blanding 
System
Silurian 
Series
 
Group
 
Formation
Blanding 
Member
 
Submember
 
Start Depth
50.00 ft
End Depth
95.00 ft
Contact Accuracy
Top & Base Accurate For Sample 
Penetration
Complete Penetration, No Gaps 
Primary Lithology
Dolomite 
Percent
60 
Secondary Lithology
Chert/Chalcedony 
Percent
40 
Tertiary Lithology
 
Percent
Comments
Start Depth: 95.00 ft
End Depth: 107.00 ft
Unit: Tete Des Morts/Mosalem Undiff. 
System
Silurian 
Series
 
Group
 
Formation
Tete Des Morts/Mosalem Undiff. 
Member
 
Submember
 
Start Depth
95.00 ft
End Depth
107.00 ft
Contact Accuracy
Top & Base Accurate For Sample 
Penetration
Complete Penetration, No Gaps 
Primary Lithology
Dolomite 
Percent
80 
Secondary Lithology
Shale 
Percent
15 
Tertiary Lithology
Chert/Chalcedony 
Percent
10 
Comments
Start Depth: 107.00 ft
End Depth: 115.00 ft
Unit: Neda 
System
Ordovician 
Series
 
Group
 
Formation
Maquoketa 
Member
Neda 
Submember
 
Start Depth
107.00 ft
End Depth
115.00 ft
Contact Accuracy
Top & Base Accurate For Sample 
Penetration
Complete Penetration, No Gaps 
Primary Lithology
Shale 
Percent
90 
Secondary Lithology
Dolomite 
Percent
10 
Tertiary Lithology
 
Percent
Comments
Start Depth: 115.00 ft
End Depth: 320.00 ft
Unit: Brainard Shale 
System
Ordovician 
Series
 
Group
 
Formation
Maquoketa 
Member
Brainard Shale 
Submember
 
Start Depth
115.00 ft
End Depth
320.00 ft
Contact Accuracy
Top & Base Accurate For Sample 
Penetration
Complete Penetration, No Gaps 
Primary Lithology
Shale 
Percent
100 
Secondary Lithology
 
Percent
Tertiary Lithology
 
Percent
Comments
Start Depth: 320.00 ft
End Depth: 365.00 ft
Unit: Elgin Limestone 
System
Ordovician 
Series
 
Group
 
Formation
Maquoketa 
Member
Elgin Limestone 
Submember
 
Start Depth
320.00 ft
End Depth
365.00 ft
Contact Accuracy
Top & Base Accurate For Sample 
Penetration
Complete Penetration, No Gaps 
Primary Lithology
Shale 
Percent
60 
Secondary Lithology
Dolomite 
Percent
40 
Tertiary Lithology
 
Percent
Comments
Start Depth: 365.00 ft
End Depth: 405.00 ft
Unit: Dubuque 
System
Ordovician 
Series
 
Group
Galena 
Formation
Dubuque 
Member
 
Submember
 
Start Depth
365.00 ft
End Depth
405.00 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: 405.00 ft
End Depth: 475.00 ft
Unit: Wise Lake 
System
Ordovician 
Series
 
Group
Galena 
Formation
Wise Lake 
Member
 
Submember
 
Start Depth
405.00 ft
End Depth
475.00 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: 475.00 ft
End Depth: 590.00 ft
Unit: Dunleith 
System
Ordovician 
Series
 
Group
Galena 
Formation
Dunleith 
Member
 
Submember
 
Start Depth
475.00 ft
End Depth
590.00 ft
Contact Accuracy
Top & Base Accurate For Sample 
Penetration
Complete Penetration, No Gaps 
Primary Lithology
Dolomite 
Percent
50 
Secondary Lithology
Limestone 
Percent
40 
Tertiary Lithology
Chert/Chalcedony 
Percent
10 
Comments
Start Depth: 590.00 ft
End Depth: 625.00 ft
Unit: Decorah 
System
Ordovician 
Series
 
Group
Galena 
Formation
Decorah 
Member
 
Submember
 
Start Depth
590.00 ft
End Depth
625.00 ft
Contact Accuracy
Top & Base Accurate For Sample 
Penetration
Complete Penetration, No Gaps 
Primary Lithology
Limestone 
Percent
50 
Secondary Lithology
Shale 
Percent
30 
Tertiary Lithology
Limestone 
Percent
20 
Comments
Start Depth: 625.00 ft
End Depth: 675.00 ft
Unit: Platteville 
System
Ordovician 
Series
 
Group
Galena 
Formation
Platteville 
Member
 
Submember
 
Start Depth
625.00 ft
End Depth
675.00 ft
Contact Accuracy
Top & Base Accurate For Sample 
Penetration
Complete Penetration, No Gaps 
Primary Lithology
Limestone 
Percent
50 
Secondary Lithology
Dolomite 
Percent
50 
Tertiary Lithology
 
Percent
Comments
Start Depth: 675.00 ft
End Depth: 680.00 ft
Unit: Glenwood 
System
Ordovician 
Series
 
Group
Ancell 
Formation
Glenwood 
Member
 
Submember
 
Start Depth
675.00 ft
End Depth
680.00 ft
Contact Accuracy
Top & Base Accurate For Sample 
Penetration
Complete Penetration, No Gaps 
Primary Lithology
Dolomite 
Percent
60 
Secondary Lithology
Limestone 
Percent
20 
Tertiary Lithology
Shale 
Percent
20 
Comments
Start Depth: 680.00 ft
End Depth: 775.00 ft
Unit: St. Peter Sandstone 
System
Ordovician 
Series
 
Group
Ancell 
Formation
St. Peter Sandstone 
Member
 
Submember
 
Start Depth
680.00 ft
End Depth
775.00 ft
Contact Accuracy
Top & Base Accurate For Sample 
Penetration
Partial Penetration (Base Not Met), No Gap At Top 
Primary Lithology
Sandstone 
Percent
90 
Secondary Lithology
Shale 
Percent
10 
Tertiary Lithology
 
Percent
Comments