GROUND WATER ATLAS of the UNITED STATES
Alabama, Florida, Georgia, and South Carolina
HA 730-G

Biscayne aquifer

(figures 26-41)

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Introduction (Click to view thumbnails and download figures)

• Figure 26 Map showing the location of the Biscayne aquifer in Florida

Hydrogeologic Units (Click to view thumbnails and download figures)

• Figure 27 Correlation chart showing the composition of the Biscayne aquifer
• Figure 28 Map showing the rock types that comprise the top of the Biscayne aquifer

Base and Thickness (Click to view thumbnails and download figures)

• Figure 29 Map showing base-of-aquifer contour and direction of ground-water flow in the Biscayne aquifer

Hydrologic System (Click to view thumbnails and download figures)

Freshwater Controls

• Figure 30 Map showing the canal system and water-conservation areas in southern Florida

Ground-water Flow

• Figure 31 Map showing water-table contours and the water movement in the Biscayne aquifer in southern Florida
• Figure 32 Map showing municipal pumpage from the Biscayne aquifer in southern Florida

Water-Table Fluctuations

• Figure 33 Map showing water-table contours and the general direction of water movement in the Biscayne aquifer
• Figure 34 Map showing water-table contours in the Biscayne aquifer during October, 1947

Response to Recharge

• Figure 35 Graph showing the rise of the water level after intense rainfall in well G-86 located in Miami, Florida

Canal-Aquifer Connection

• Figure 36 Diagram showing the hydraulic connection between the Biscayne aquifer and the canals that cross it
• Figure 37 Photograph showing the large-scale canal control structures that prevent inland movement of saltwater up the canals

Saltwater Encroachment (Click to view thumbnails and download figures)

• Figure 38 Series of diagrams explaining control of saltwater encroachment in drainage canals
• Figure 39 Diagram showing the location of the saltwater body in the Biscayne aquifer
• Figure 40 Sequence of maps showing the inland movement of saltwater in the Biscayne aquifer in response to development

Fresh Ground-water Withdrawals (Click to view thumbnails and download figures)

• Figure 41 Pie chart showing use of fresh ground-water withdrawals from the Biscayne aquifer during 1985

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