L-31N Levee Borehole Geophysics and Core Descriptions

Four coreholes and two monitor well clusters were drilled along the L-31N Levee in Miami-Dade County, Florida, to characterize the Surficial aquifer. The United States Geological Survey, South Florida Water Management District, and United States Army Corps of Engineers collaborated on this data acquisition project, which concluded in 2004. Downhole logging included gamma ray, fluid conductivity, temperature, EM-induction, caliper, sonic, flow meter, and optical video tools.

Use Cases

• Delineate lithology and hydrostratigraphy using gamma ray, EM-induction, and full wave form sonic logs from boreholes.
• Model groundwater movement and seepage rates by analyzing flow meter logging and fluid conductivity data.
• Characterize borehole conditions and sediment structure with 3-arm caliper measurements and Laval video tool footage.
• Assess aquifer properties by correlating core descriptions with downhole geophysical log signatures.

Strengths

• Data includes multiple downhole geophysical methods (gamma ray, fluid conductivity, temperature, EM-induction, sonic, flow meter, optical video).
• Covers a specific, targeted area with four coreholes and two clusters of monitor wells along the L-31N Levee.

Limitations

• Temporal coverage is limited to a single project ending in 2004, with no ongoing updates.
• Sample size is small, limited to the six drilled locations described.
• Specific row counts, column names, and data formats are not provided in the description.

Provenance

Source

Collaboration between the United States Geological Survey (USGS), South Florida Water Management District, and the United States Army Corps of Engineers.

Collection Method

On-site geologic expertise during drilling, core and sediment description, and downhole geophysical logging of constructed boreholes.

Time Range

Project concluded in 2004.

Freshness

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Geography

L-31N Levee in Miami-Dade County, Florida, USA, adjacent to Everglades National Park.