GROUND WATER ATLAS of the UNITED STATES
Illinois, Indiana, Kentucky, Ohio, Tennessee
HA 730-K

Central Lowland aquifers

(figures 11-65)

---

Introduction (Click to view thumbnails and download figures)

• Figure 11 Map of surficial aquifer system
• Figure 12 Map of aquifer in consolidated rocks
• Figure 13 Correlation chart showing Surficial aquifer system and consolidated rocks

Surficial aquifer system (Click to view thumbnails and download figures)

• Figure 14 Map showing thickness of Quaternary deposits

Hydrogeologic setting

• Figure 15 Cross section of central Illinois
• Figure 16 Cross section of Lagrange County in northern Indiana
• Figure 17 Cross sectionof Butler County Ohio
• Figure 18 Cross section East of St. Louis Illinois

Generalized ground-water movement

• Figure 19 Map showing altitude of potetiometric surface

Aquifer hydraulic characteristics and well yields

• Figure 20 Map showing estimated trasmissivity of glacial deposits
• Figure 21 Map showing potential yield to individual wells
• Figure 22 Cross section showing changes in water table due to pumpage from nearby well

Ground water quality

• Figure 23 Water quality chart for Morgan County, Indiana and Dayton area, Ohio
• Figure 24 Graph showing concentrations of dissolved solids, hardness-causing constituents and iron

Fresh ground-water withdrawals

• Figure 25 Chart showing use of fresh ground-water withdrawals during 1985

Pennsylvanian aquifers (Click to view thumbnails and download figures)

Hydrogeologic setting

• Figure 26 Map of Pennsylvanian aquifers
• Figure 27 Cross section showing a typical sequence of beds deposited during a sedimentary cycle
• Figure 28 Map showing depth to top of Pennsylvanian rocks
• Figure 29 Map showing estimated thickness of Pennsylvanian rocks that contain freshwater
• Figure 30 Cross section showing thickness of rocks and the thickness of freshwater
• Figure 31 Correlation chart

Ground-water quality

• Figure 32 Water quality chart for Clay and Vigo Counties, Indiana

Well Yields and fresh ground-water withdrawals

Mississippian aquifers (Click to view thumbnails and download figures)

Hydrogeologic setting

• Figure 33 Map showing Mississippian aquifers
• Figure 34 Correlation chart
• Figure 35 Cross section showing Mississippian rocks that contain freshwater

Ground-water quality

• Figure 36 Water quality chart for Greene County, Indiana
• Figure 37 Graph of dissolved-solids concentrations in water from wells

Well yields and fresh ground-water withdrawals

• Figure 38 Graph showing specific capacities of wells completed in the Keokuk and Burlington Limestones

Silurian-Devonian aquifer (Click to view thumbnails and download figures)

Hydrogeologic setting

• Figure 39 Map showing the Silurian-Devonian aquifer
• Figure 40 Correlation chart
• Figure 41 Cross section showing Silurian and Devonian rocks that contain freshwater

Well yields

• Figure 42 Map showing area of large well yield
• Figure 43 Map showing probable yield of water

Ground-water quality

• Figure 44 Graph showing concentrations of dissolved solids
• Figure 45 Water quality chart for Southwestern Ohio
• Figure 46 Graph of chemical constituent concentration

Fresh ground-water withdrawals

• Figure 47 Chart showing use of fresh ground-water withdrawals during 1985

Cambrian-Ordovician aquifer system (Click to view thumbnails and download figures)

• Figure 48 Map showing Cambrian-Ordovician aquifer system
• Figure 49 Correlation chart
• Figure 50 Diagrammatic hydrogeologic section of northern Illinois and Indiana

St. Peter-Prairie du Chien-Jordan aquifer

• Figure 51 Map showing St. Peter-Prairie du Chien-Jordan aquifer
• Figure 52 Map showing the altitude of the St. Peter-Prairie du Chien-Jordan aquifer
• Figure 53 Potentiometric surface map of the St. Peter-Prairie du Chien-Jordan aquifer

Ironton-Galesville aquifer

• Figure 54 Map showing the Inonton-Galesville aquifer
• Figure 55 Map showing the altitude of the Inonton-Galesville aquifer
• Figure 56 Potentiometric surface map of the Inonton-Galesville aquifer

Mount Simon aquifer

• Figure 57 Map showing the Mount Simon aquifer
• Figure 58 Map showing the altitude of the Mount Simon aquifer
• Figure 59 Potentiometric surface map of the Mount Simon aquifer

Ground-water quality

• Figure 60 Graph showing concentrations of dissolved solids
• Figure 61 Map showing water type

Fresh ground-water withdrawals

• Figure 62 Map showing average fresh ground-water withdrawals during 1980
• Figure 63 Graph of Average withdrawals from the Cambrian-Ordovician aquifer system
• Figure 64 Map of water level decline in the Cambrian-Ordovician aquifer system
• Figure 65 Chart showing the use of fresh ground-water withdrawals during 1985

Return to HA 730-K table of contents
Return to Ground Water Atlas home page