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Collection and analyses of physical data for deep injection wells in Florida
Title
Collection and analyses of physical data for deep injection wells in Florida.
Creator
Gao, Jie., College of Engineering and Computer Science, Department of Civil, Environmental and Geomatics Engineering
Abstract/Description
Deep injection wells (DIW) in Florida are regulated by the U.S. Environmental Protection Agency (USEPA) and the state of Florida through the Underground Injection Control regulations contained within the Safe Drinking Water Act. Underground injection is defined as the injection of hazardous waste, nonhazardous waste, or municipal waste below the lowermost formation containing an underground source of drinking water within one-quarter mile of the wellbore. Municipalities in Florida have been...
Show moreDeep injection wells (DIW) in Florida are regulated by the U.S. Environmental Protection Agency (USEPA) and the state of Florida through the Underground Injection Control regulations contained within the Safe Drinking Water Act. Underground injection is defined as the injection of hazardous waste, nonhazardous waste, or municipal waste below the lowermost formation containing an underground source of drinking water within one-quarter mile of the wellbore. Municipalities in Florida have been using underground injection as an alternative to surface disposal of treated domestic wastewater for nearly 40 years. The research involved collecting data as of September, 2007 on all the Class I DIWs in the state of Florida and evaluating the differences between them. The analysis found regional differences in deep well practice and canonical correlation analyses concluded that depth below the USDW is the most significant factor to prevent upward migration of the injected fluid.
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Date Issued
2010
PURL
http://purl.flvc.org/FAU/2796085
Subject Headings
Groundwater flow, Mathematical models, Artificial groundwater recharge, Groundwater, Pollution, Management, Deep-well disposal
Format
Document (PDF)
Application of canal locations within grid cells to the study of surface water-groundwater interaction
Title
Application of canal locations within grid cells to the study of surface water-groundwater interaction.
Creator
Sosnowski, Robert Joseph., Florida Atlantic University, Restrepo, Jorge I.
Abstract/Description
Within St. Lucie County, Florida, a network of canals has been cut to provide flood protection, drainage, and irrigation. Many of these canals maintain a permanent to semi-permanent hydraulic connection with the surficial aquifer. MODFLOW code was used to simulate St. Lucie County groundwater levels. One of stresses that contributed to the solution of the groundwater levels, was the volume of water that flowed into or out of the aquifer through the canal system. In MODFLOW, the flow...
Show moreWithin St. Lucie County, Florida, a network of canals has been cut to provide flood protection, drainage, and irrigation. Many of these canals maintain a permanent to semi-permanent hydraulic connection with the surficial aquifer. MODFLOW code was used to simulate St. Lucie County groundwater levels. One of stresses that contributed to the solution of the groundwater levels, was the volume of water that flowed into or out of the aquifer through the canal system. In MODFLOW, the flow calculation between a canal and the aquifer is independent of the canal's location within the grid cell. The flow calculation was modified to incorporate canal location. Simulation results showed 34 percent of the model area realized groundwater levels that were plus or minus two-tenths to one-half foot when compared to the original levels. These results can be significant for model applications such as wetland protection and salt water intrusion.
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Date Issued
1999
PURL
http://purl.flvc.org/fcla/dt/15651
Subject Headings
Groundwater flow--Mathematical models, Canals--Florida--St Lucie County, Aquifers
Format
Document (PDF)
Methodology for Estimating the Magnitude, and Spatial and Temporal Variation of Irrigation Demand on the Floridan Aquifer System within the Upper East Coast Planning Area, Florida
Title
Methodology for Estimating the Magnitude, and Spatial and Temporal Variation of Irrigation Demand on the Floridan Aquifer System within the Upper East Coast Planning Area, Florida.
Creator
Quinn, Elizabeth, Restrepo, Jorge I., Florida Atlantic University
Abstract/Description
A method was developed to estimate the magnitude and spatio-temporal variation of agricultural demand from the Floridan Aquifer System (F AS) in the Upper East Coast (UEC) planning area, Florida. The Irrigation Program (IP) is designed to compute total irrigation requirements and model demand from permitted water sources. Historical Natural Resources Conservation Service well-flow data are used in calibration. The IP is most sensitive to spatio-temporal variation of water levels in major...
Show moreA method was developed to estimate the magnitude and spatio-temporal variation of agricultural demand from the Floridan Aquifer System (F AS) in the Upper East Coast (UEC) planning area, Florida. The Irrigation Program (IP) is designed to compute total irrigation requirements and model demand from permitted water sources. Historical Natural Resources Conservation Service well-flow data are used in calibration. The IP is most sensitive to spatio-temporal variation of water levels in major canals and the range of days for the wet and dry season. The magnitude of deficit in simulated and historical withdrawal from the FAS is 199,000 fe/day. This is within 7% of historical data. A correction factor should be introduced when the IP is linked to a groundwater flow model.
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Date Issued
2007
PURL
http://purl.flvc.org/fau/fd/FA00000816
Subject Headings
Groundwater flow--Florida--Upper East Coast--Mathematical models, Hydrogeology--Florida--Upper East Coast, Irrigation water--Mathematical models
Format
Document (PDF)
Three-dimensional geomodeling to identify spatial relations between lithostratigraphy and porosity in the karst carbonate biscayne aquifer, southeastern Florida
Title
Three-dimensional geomodeling to identify spatial relations between lithostratigraphy and porosity in the karst carbonate biscayne aquifer, southeastern Florida.
Creator
Westcott, Richard, Root, Tara L., Florida Atlantic University, Charles E. Schmidt College of Science, Department of Geosciences
Abstract/Description
In southeastern Florida, the majority of drinking water comes from the Biscayne aquifer. This aquifer is comprised of heterogeneous limestones, sandstones, sand, shell and clayey sand with zones of very high permeability. Visualizing the spatial variations in lithology, porosity and permeability of heterogeneous aquifers, like the Biscayne, can be difficult using traditional methods of investigation. Using the Roxar IRAP RMS software multi-layered 3D conceptual geomodels of the lithology,...
Show moreIn southeastern Florida, the majority of drinking water comes from the Biscayne aquifer. This aquifer is comprised of heterogeneous limestones, sandstones, sand, shell and clayey sand with zones of very high permeability. Visualizing the spatial variations in lithology, porosity and permeability of heterogeneous aquifers, like the Biscayne, can be difficult using traditional methods of investigation. Using the Roxar IRAP RMS software multi-layered 3D conceptual geomodels of the lithology, cyclostratigraphy and porosity were created in a portion of the Biscayne aquifer. The models were built using published data from borehole geophysical measurements, core samples, and thin sections. Spatial relations between lithology, cyclostratigraphy, porosity, and preferential flow zones were compared and contrasted to better understand how these geologic features were inter-related. The models show local areas of differing porosity within and cross-cutting different cycles and lithologies. Porosity in the Biscayne aquifer study area follows a hierarchy attributed to lithofacies with a pattern of increasing porosity for the high frequency cycles. This modeling improves understanding of the distribution and interconnectedness of preferential flow zones, and is thus an invaluable tool for future studies of groundwater flow and groundwater contamination in the Biscayne aquifer.
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Date Issued
2014
PURL
http://purl.flvc.org/fau/fd/FA00004337, http://purl.flvc.org/fau/fd/FA00004337
Subject Headings
Biscayne Aquifer (Fla.), Geophysics -- Florida -- Miami Dade County, Groundwater flow -- Florida -- Miami Dade County -- Mathematical models, Hydrology, Karst -- Florida -- Miami Dade County, Porosity, Sedimentary basins -- Florida -- Biscayne Aquifer, Sedimentology -- Statistical methods, Soil permeability
Format
Document (PDF)