Start Depth
End Depth
Stratigraphic Unit
Start Depth: 0.00 ft
End Depth: 7.00 ft
Unit: Quaternary
System
Quaternary
Series
Group
Formation
Member
Submember
Start Depth
0.00 ft
End Depth
7.00 ft
Contact Accuracy
Top & Base Accurate For Sample
Penetration
Complete Penetration, No Gaps
Primary Lithology
Soil Or Fill
Percent
100
Secondary Lithology
Percent
0
Tertiary Lithology
Percent
0
Comments
Start Depth: 7.00 ft
End Depth: 90.00 ft
Unit: Lithograph City
System
Devonian
Series
Group
Cedar Valley
Formation
Lithograph City
Member
Submember
Start Depth
7.00 ft
End Depth
90.00 ft
Contact Accuracy
Top & Base Accurate For Sample
Penetration
Bedrock Surface - Complete Penetration, No Gaps
Primary Lithology
Limestone
Percent
60
Secondary Lithology
Dolomite
Percent
40
Tertiary Lithology
Percent
0
Comments
Start Depth: 90.00 ft
End Depth: 145.00 ft
Unit: Coralville
System
Devonian
Series
Group
Cedar Valley
Formation
Coralville
Member
Submember
Start Depth
90.00 ft
End Depth
145.00 ft
Contact Accuracy
Top & Base Accurate For Sample
Penetration
Complete Penetration, No Gaps
Primary Lithology
Limestone
Percent
50
Secondary Lithology
Dolomite
Percent
40
Tertiary Lithology
Sandstone
Percent
10
Comments
Start Depth: 145.00 ft
End Depth: 250.00 ft
Unit: Little Cedar
System
Devonian
Series
Group
Cedar Valley
Formation
Little Cedar
Member
Submember
Start Depth
145.00 ft
End Depth
250.00 ft
Contact Accuracy
Top & Base Accurate For Sample
Penetration
Complete Penetration, No Gaps
Primary Lithology
Dolomite
Percent
60
Secondary Lithology
Shale
Percent
20
Tertiary Lithology
Limestone
Percent
20
Comments
Start Depth: 250.00 ft
End Depth: 280.00 ft
Unit: Pinicon Ridge
System
Devonian
Series
Group
Wapsipinicon
Formation
Pinicon Ridge
Member
Submember
Start Depth
250.00 ft
End Depth
280.00 ft
Contact Accuracy
Top & Base Accurate For Sample
Penetration
Complete Penetration, No Gaps
Primary Lithology
Dolomite
Percent
60
Secondary Lithology
Limestone
Percent
40
Tertiary Lithology
Percent
0
Comments
Start Depth: 280.00 ft
End Depth: 347.00 ft
Unit: Spillville
System
Devonian
Series
Group
Wapsipinicon
Formation
Spillville
Member
Submember
Start Depth
280.00 ft
End Depth
347.00 ft
Contact Accuracy
Top & Base Accurate For Sample
Penetration
Complete Penetration, No Gaps
Primary Lithology
Dolomite
Percent
100
Secondary Lithology
Percent
0
Tertiary Lithology
Percent
0
Comments
Start Depth: 347.00 ft
End Depth: 415.00 ft
Unit: Maquoketa
System
Ordovician
Series
Group
Formation
Maquoketa
Member
Submember
Start Depth
347.00 ft
End Depth
415.00 ft
Contact Accuracy
Top & Base Accurate For Sample
Penetration
Complete Penetration, No Gaps
Primary Lithology
Dolomite
Percent
70
Secondary Lithology
Chert/Chalcedony
Percent
30
Tertiary Lithology
Percent
0
Comments
Start Depth: 415.00 ft
End Depth: 640.00 ft
Unit: Galena
System
Ordovician
Series
Group
Galena
Formation
Member
Submember
Start Depth
415.00 ft
End Depth
640.00 ft
Contact Accuracy
Top & Base Accurate For Sample
Penetration
Complete Penetration, No Gaps
Primary Lithology
Dolomite
Percent
92
Secondary Lithology
Chert/Chalcedony
Percent
6
Tertiary Lithology
Limestone
Percent
2
Comments
Start Depth: 640.00 ft
End Depth: 720.00 ft
Unit: Decorah/Platteville/Glenwood Undiff.
System
Ordovician
Series
Group
Galena
Formation
Decorah/Platteville/Glenwood Undiff.
Member
Submember
Start Depth
640.00 ft
End Depth
720.00 ft
Contact Accuracy
Top & Base Accurate For Sample
Penetration
Complete Penetration, No Gaps
Primary Lithology
Shale
Percent
50
Secondary Lithology
Dolomite
Percent
35
Tertiary Lithology
Limestone
Percent
15
Comments
Start Depth: 720.00 ft
End Depth: 790.00 ft
Unit: St. Peter Sandstone
System
Ordovician
Series
Group
Ancell
Formation
St. Peter Sandstone
Member
Submember
Start Depth
720.00 ft
End Depth
790.00 ft
Contact Accuracy
Top & Base Accurate For Sample
Penetration
Complete Penetration, No Gaps
Primary Lithology
Sandstone
Percent
100
Secondary Lithology
Percent
0
Tertiary Lithology
Percent
0
Comments
Start Depth: 790.00 ft
End Depth: 1027.00 ft
Unit: Shakopee
System
Ordovician
Series
Group
Prairie Du Chien
Formation
Shakopee
Member
Submember
Start Depth
790.00 ft
End Depth
1027.00 ft
Contact Accuracy
Top & Base Accurate For Sample
Penetration
Complete Penetration, Gaps, Top & Base Defined
Primary Lithology
Dolomite
Percent
55
Secondary Lithology
Sandstone
Percent
43
Tertiary Lithology
Chert/Chalcedony
Percent
2
Comments
Start Depth: 1027.00 ft
End Depth: 1160.00 ft
Unit: Oneota
System
Ordovician
Series
Group
Prairie Du Chien
Formation
Oneota
Member
Submember
Start Depth
1027.00 ft
End Depth
1160.00 ft
Contact Accuracy
Top & Base Accurate For Sample
Penetration
Complete Penetration, Gaps, Top & Base Defined
Primary Lithology
Dolomite
Percent
98
Secondary Lithology
Chert/Chalcedony
Percent
2
Tertiary Lithology
Percent
0
Comments
Start Depth: 1160.00 ft
End Depth: 1230.00 ft
Unit: Jordan
System
Cambrian
Series
Group
Formation
Jordan
Member
Submember
Start Depth
1160.00 ft
End Depth
1230.00 ft
Contact Accuracy
Top Accurate, Base Less Accurate - (Poor Samples, Gap At Contact)
Penetration
Partial Penetration (Base Not Met), No Gap At Top
Primary Lithology
Sandstone
Percent
90
Secondary Lithology
Dolomite
Percent
10
Tertiary Lithology
Percent
0
Comments
well deepened to 1,265 in 1950.