Dade County, Florida, features a geospatial map showing 10-foot contour intervals for the top elevation of a highly permeable gray limestone aquifer. The U.S. Geological Survey produced this dataset in cooperation with the South Florida Water Management District as part of a regional hydrogeologic study. The data was published in 1987.
Use Cases
- Model groundwater flow paths using the aquifer top elevation contours.
- Define the lateral extent of the highly permeable gray limestone unit based on mapped thickness and hydraulic conductivity criteria.
- Identify potential connectivity between limestone and contiguous shelly sand beds for regional aquifer system analysis.
Strengths
- Contour data is based on specific geologic criteria: intervals at least 10 ft. thick with estimated hydraulic conductivity of at least 100 ft/d.
- Map delineates a critical component of the surficial aquifer system, the primary water source for southeastern Florida.
Limitations
- Data is from 1987 and may not reflect current aquifer conditions due to land use or climate changes.
- The original study notes insufficient information on western/deeper parts of the aquifer system at the time.
Provenance
- Source
- U.S. Geological Survey, Water-Resources Investigations Report 90-4108.
- Collection Method
- Geologic mapping and hydrogeologic study, likely incorporating drilling and monitoring data.
- Time Range
- null
- Freshness
- null
- Geography
- Dade County, Florida, USA.