Two maps of Dade County, Florida, showing approximate position of the 1,000-ppm isochlor as of 1951 and approximate area of potential salt-water penetration under 1945 conditions

Hoy, N.D.

doi:10.3133/ofr5278

Cited by 5 publications

(5 citation statements)

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“…This cooperative effort was expanded to Broward County in 1940. Brown and Parker (1945), Parker (1945), Hoy (1952), Parker and others (1955), and Klein (1957) evaluated the causes of saltwater encroachment and its extent in Miami-Dade County. Leach and Grantham (1966) evaluated the relation of saltwater encroachment to discharge in the Miami River and its tributaries.…”

Section: Previous Studiesmentioning

confidence: 99%

“…The USGS mapped the extent of saltwater in the Biscayne aquifer in Miami-Dade County in 1951, 1978, 1984, and 1995(Hoy, 1952Swayze, 1980;Klein and Waller, 1985;Sonenshein, 1997) and in Broward County in 1990 (Koszalka, 1994). Klein and Ratzlaff (1989) and Sonenshein and Koszalka (1996) evaluated changes in the extent of saltwater intrusion in the Biscayne aquifer.…”

Section: Previous Studiesmentioning

confidence: 99%

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Results of time-domain electromagnetic soundings in Miami-Dade and southern Broward Counties, Florida

Fitterman¹,

Prinos²

2011

Open-File Report

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Time-domain electromagnetic (TEM) soundings were made in Miami-Dade and southern Broward Counties to aid in mapping the landward extent of saltwater in the Biscayne aquifer. A total of 79 soundings were collected in settings ranging from urban to undeveloped land, with some of the former posing problems of land access and interference from anthropogenic features. TEM soundings combined with monitoring-well data were used to determine if the saltwater front had moved since the last time it was mapped, to provide additional spatial coverage where existing monitoring wells were insufficient, and to help interpret a previously collected helicopter electromagnetic (HEM) survey flown in the southernmost portion of the study area. TEM soundings were interpreted as layered resistivity-depth models. Using information from well logs and water-quality data, the resistivity of the freshwater saturated Biscayne aquifer is expected to be above 30 ohm-meters, and the saltwater-saturated aquifer will have resistivities of less than 10 ohm-meters allowing determination of water quality from the TEM interpretations. TEM models from 29 soundings were compared to electromagnetic induction logs collected in nearby monitoring wells. In general, the agreement of these results was very good, giving confidence in the use of the TEM data for mapping saltwater encroachment. Sounding Easting [m] Northing [m]

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Section: Previous Studiesmentioning

confidence: 99%

Section: Previous Studiesmentioning

confidence: 99%

Results of time-domain electromagnetic soundings in Miami-Dade and southern Broward Counties, Florida

Fitterman¹,

Prinos²

2011

Open-File Report

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“…The extent and causes of saltwater encroachment in MiamiDade County have been the subject of numerous reports (Brown and Parker, 1945;Parker, 1945;Hoy, 1952;Parker and others, 1955;Klein, 1957;Leach and Grantham, 1966). Later work focused on the extent of seawater intrusion in the Biscayne aquifer in Miami-Dade County in 1951 (Hoy, 1952), 1978(Swayze, 1980), 1984(Klein and Waller, 1985, and 1995 (Sonenshein, 1997). Klein and Ratzlaff (1989) and Sonenshein and Koszalka (1996) evaluated changes in the extent of saltwater intrusion in the Biscayne aquifer.…”

Section: Previous Studiesmentioning

confidence: 99%

Helicopter electromagnetic survey of the Model Land Area, Southeastern Miami-Dade County, Florida

Fitterman¹,

Deszcz-Pan²,

Prinos³

2012

Open-File Report

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“…The USGS mapped the approximate inland extent of saltwater in the Biscayne aquifer in Miami-Dade County in 1951 (Hoy, 1952), 1978(Swayze, 1980(Klein and Waller, 1985, and 1995 and in Broward County in 1990 (Koszalka, 1995). Parker and others (1955) also published a map showing the inland extent of saltwater in the Biscayne aquifer in Miami-Dade County that differs from the map created in 1951 (Hoy, 1952), but the date that this map was created is not provided. Klein and Ratzlaff (1989) and Sonenshein and Koszalka (1996) evaluated changes in the extent of saltwater intrusion in the Biscayne aquifer in Miami-Dade County.…”

Section: Lithostratigraphic Boundarymentioning

confidence: 99%

Origins and delineation of saltwater intrusion in the Biscayne aquifer and changes in the distribution of saltwater in Miami-Dade County, Florida

Prinos¹,

Wacker²,

Cunningham³

et al. 2014

Scientific Investigations Report

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FreshwaterFreshwater inflow S O4 M g Cover. Conceptual diagram of sources and mechanisms of the saltwater that has intruded parts of aquifers in southeast Florida, and changes in water chemistry that may result from this intrusion.For more information on the USGS-the Federal source for science about the Earth, its natural and living resources, natural hazards, and the environment, visit http://www.usgs.gov or call 1-888-ASK-USGS.For an overview of USGS information products, including maps, imagery, and publications, visit http://www.usgs.gov/pubprodTo order this and other USGS information products, visit

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Two maps of Dade County, Florida, showing approximate position of the 1,000-ppm isochlor as of 1951 and approximate area of potential salt-water penetration under 1945 conditions

Cited by 5 publications

References 0 publications

Results of time-domain electromagnetic soundings in Miami-Dade and southern Broward Counties, Florida

Results of time-domain electromagnetic soundings in Miami-Dade and southern Broward Counties, Florida

Helicopter electromagnetic survey of the Model Land Area, Southeastern Miami-Dade County, Florida

Origins and delineation of saltwater intrusion in the Biscayne aquifer and changes in the distribution of saltwater in Miami-Dade County, Florida

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