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(1 - 11 of 11)
- Title
- Case study - trichloroethylene groundwater contamination at Vero Beach, Florida.
- Creator
- Wang, Tsen C., Lenahan, Robert A., TenEyck, John
- Date Issued
- 1984-12
- PURL
- http://purl.flvc.org/fcla/dt/3358976
- Subject Headings
- Trichloroethylene, Water--Pollution, Estuarine pollution, Groundwater--Pollution--Florida
- Format
- Document (PDF)
- Title
- A ten-year study on the removal of contaminated groundwaterand its impact to a run-off canal and coastal environment.
- Creator
- Wang, Tsen C., Harbor Branch Oceanographic Institute
- Date Issued
- 1994
- PURL
- http://purl.flvc.org/fau/fd/FA00007335
- Subject Headings
- Groundwater, Groundwater--Pollution, Trichloroethylene, Groundwater--Purification--Trichloroethylene removal
- Format
- Document (PDF)
- Title
- Application of probabilistic analogy to groundwater contamination problems.
- Creator
- Qiu, Xin., Florida Atlantic University, Su, Tsung-Chow, College of Engineering and Computer Science, Department of Ocean and Mechanical Engineering
- Abstract/Description
-
This thesis addresses the groundwater contamination problem from a probabilistic point of view. The objective of this study is to obtain analytical solutions for the backward type Kolmogorov equations governing certain crucial variables in the case of a two-dimensional medium. These include the rate at which pollutants enter the protected zone and the length of time that a pollutant particle takes to travel from a given location to the boundary of the protected zone. It is assumed that the...
Show moreThis thesis addresses the groundwater contamination problem from a probabilistic point of view. The objective of this study is to obtain analytical solutions for the backward type Kolmogorov equations governing certain crucial variables in the case of a two-dimensional medium. These include the rate at which pollutants enter the protected zone and the length of time that a pollutant particle takes to travel from a given location to the boundary of the protected zone. It is assumed that the groundwater flow is horizontal and uniform, and that a protected zone is located downstream. Analytical solutions are obtained by using the techniques of Laplace transform and separation of variables. Numerical results are given for two cases, one with flow coming from a boundary which is imperious to the pollutant, and another with flow coming from infinity.
Show less - Date Issued
- 1993
- PURL
- http://purl.flvc.org/fcla/dt/14980
- Subject Headings
- Groundwater--Pollution--Mathematical models, Groundwater flow--Mathematical models, Pollutants
- Format
- Document (PDF)
- Title
- Groundwater solute transport models for simulating the effects of a wellfield protection zone on contaminant transport.
- Creator
- Rueckert, William A., Florida Atlantic University, Restrepo, Jorge I.
- Abstract/Description
-
The objective is to develop a groundwater flow model of the Surficial Aquifer System in the area of Plantation, Broward County, Florida, using the U.S. Geological Survey MODFLOW code and to make a comparison between the use of two supplementary contaminant transport models: MODPATH code and the MT3D code. The advantages and limitations of the two solute transport models are described and an evaluation is made of their accuracy with respect to delineation of traveltime related to capture zones...
Show moreThe objective is to develop a groundwater flow model of the Surficial Aquifer System in the area of Plantation, Broward County, Florida, using the U.S. Geological Survey MODFLOW code and to make a comparison between the use of two supplementary contaminant transport models: MODPATH code and the MT3D code. The advantages and limitations of the two solute transport models are described and an evaluation is made of their accuracy with respect to delineation of traveltime related to capture zones of wells. Final results of the computer simulations indicate that this study area is sensitive to river bed hydraulic conductivity and the stress of the continuous pumping at a nearby wellfield. Therefore, a critical factor in selecting an appropriate flow model for delineating the traveltime-related capture zone of a well is a model which simplifies the flow system while still preserving hydrogeologic characteristics of the flow system.
Show less - Date Issued
- 1994
- PURL
- http://purl.flvc.org/fcla/dt/15073
- Subject Headings
- Pollutants, Groundwater flow--Computer simulation, Groundwater--Pollution, Aquifers--Florida--Broward County, Groundwater flow--Florida--Broward County
- Format
- Document (PDF)
- Title
- The relative importance of nutrient enrichment and herbivory on macroalgal communities near Norman’s Pond Cay, Exumas Cays, Bahamas: a ‘‘natural’’ enrichment experiment.
- Creator
- Lapointe, Brian E., Barile, Peter J., Yentsch, Charles S., Littler, Mark M., Littler, Diane S., Kakuk, Brian
- Date Issued
- 2003
- PURL
- http://purl.flvc.org/FCLA/DT/2848311
- Subject Headings
- Nitrogen, Phosphorus, Herbivores, Marine algae --Bahamas --Grand Bahama, Groundwater --Pollution
- Format
- Document (PDF)
- Title
- The correlations between OSTDS sites and the pollution of the surface water bodies in Broward County.
- Creator
- Rocher, Yvel, Bloetscher, Frederick, Florida Atlantic University, College of Engineering and Computer Science, Department of Civil, Environmental and Geomatics Engineering
- Abstract/Description
-
Sampling data of many surface water bodies in Broward County tend to reveal abnormal levels of bacterial concentrations for total coliform, Escherichia coli and Enterococcus. Given the presence of septic systems in geohydrologically sensitive areas throughout the County, several studies (Morin 2005 and Bocca 2007) suggested a correlation in the high bacterial densities and the septic sites.
- Date Issued
- 2014
- PURL
- http://purl.flvc.org/fau/fd/FA00004324, http://purl.flvc.org/fau/fd/FA00004324
- Subject Headings
- Bacterial pollution of water, Groundwater -- Pollution, Pathogenic microorganisms -- Detection, Sewage disposal, Sewerage, Water -- Pollution -- Point source identification, Water quality -- Management
- Format
- Document (PDF)
- 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.
Show less - 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)
- Title
- Nutrient couplings between on-site sewage disposal systems, groundwaters, and nearshore surface waters of the Florida Keys.
- Creator
- Lapointe, Brian E., O'Connell, Julie D., Garrett, G. S.
- Date Issued
- 1990
- PURL
- http://purl.flvc.org/FCLA/DT/3333152
- Subject Headings
- Groundwater, Sewage disposal, Ammonium, Florida Keys (Fla.), Nutrient pollution of water, Eutrophication
- Format
- Document (PDF)
- Title
- Risk of injection using reclaimed water for aquifer recharge using rotavirus as surrogate contaminant.
- Creator
- Phonpornwithoon, Pollop, Bloetscher, Frederick, Florida Atlantic University, College of Engineering and Computer Science, Department of Civil, Environmental and Geomatics Engineering
- Abstract/Description
-
Groundwater aquifers are precious resources that has been serving human consumption for many centuries. This resource is pristine in comparison with surface waters such as lakes and canals, however, as population grows exponentially so does the demand for groundwater and the need to study the potential of groundwater replenishment programs. The injection of treated water or wastewater into an aquifer is a method to protect this resource for current and future generations. Health concerns...
Show moreGroundwater aquifers are precious resources that has been serving human consumption for many centuries. This resource is pristine in comparison with surface waters such as lakes and canals, however, as population grows exponentially so does the demand for groundwater and the need to study the potential of groundwater replenishment programs. The injection of treated water or wastewater into an aquifer is a method to protect this resource for current and future generations. Health concerns would be expected since migration of water of “impaired quality” can affect the drinking water by contamination. Regulatory barriers resulting from the perceived risks of adverse health effects from pathogens such as viruses have limited the concept of this impaired water resources from being used for groundwater replenishment programs. The objective of this study is to examine the risk assessment using computational modeling with MODFLOW and MT3D groundwater transport simulation. The results from the simulation showed that after two years, the risk of contamination based on concentration contours from the injection well to the production wellfields for the City of Hollywood stabilized below 10- 6. The risk assessment provided important aspect to demonstrate the concept of using injection of treated water as an option for groundwater replenishment.
Show less - Date Issued
- 2014
- PURL
- http://purl.flvc.org/fau/fd/FA00004317, http://purl.flvc.org/fau/fd/FA00004317
- Subject Headings
- Aquifer storage recovery, Artificial grounddwater recharge, Drinking water -- Contamination, Environmental health -- Mathematical models, Groundwater -- Pollution -- Mathematical models, Health risk assessment, Viral pollution of water
- Format
- Document (PDF)
- Title
- A study of the relationships between historical land use and petroleum contamination in southeastern Palm Beach County, Florida.
- Creator
- Peterson, Andrew Brian., Florida Atlantic University, Finkl, Charles W.
- Abstract/Description
-
Protection of groundwater resources in southeastern Florida is essential because of increasing demands on water quality and supply. Because water is furnished to public and private water systems from production wells that tap the non-artesian surficial aquifer, contamination of groundwater from leaking petroleum storage tanks must be curtailed. In the study, a series of land use maps is developed based on aerial photographs (1970, 1984, and 1991) for a 40 square mile area in southeastern Palm...
Show moreProtection of groundwater resources in southeastern Florida is essential because of increasing demands on water quality and supply. Because water is furnished to public and private water systems from production wells that tap the non-artesian surficial aquifer, contamination of groundwater from leaking petroleum storage tanks must be curtailed. In the study, a series of land use maps is developed based on aerial photographs (1970, 1984, and 1991) for a 40 square mile area in southeastern Palm Beach County, Florida. The locations of petroleum storage tank systems and contaminated sites are mapped. The point biserial correlation coefficient is used to examine the strength of the relationships between historical land use, storage tank system capacity, and the presence of petroleum. contamination. The results indicate no correlation between the intensity of urbanization (historical land use) and petroleum contamination and positive correlation between petroleum storage system capacity and petroleum contamination.
Show less - Date Issued
- 1995
- PURL
- http://purl.flvc.org/fcla/dt/15162
- Subject Headings
- Land use--Florida--Palm Beach County, Groundwater, Petroleum products--Underground storage--Environmental aspects, Oil pollution of soils
- Format
- Document (PDF)
- Title
- The effects of on-site sewage treatment and disposal systems on the relief canals of Indian River County, the St. Sebastian River, and the central Indian River lagoon.
- Creator
- Tarnowski, Marie E., Lapointe, Brian E., Florida Atlantic University, Charles E. Schmidt College of Science, Center for Environmental Studies
- Abstract/Description
-
Effluent from on-site sewage treatment and disposal systems (OSTDS) is generally known to impact groundwaters and surface waters with nitrogen (N) and phosphorus (P) and other contaminants. Little research has quantified this problem along the Indian River Lagoon (IRL), especially in Indian River County (IRC) where there are 26,660 active systems. This study assessed the effects of OSTDS on contamination of surface and groundwaters along three urbanized canals and the St. Sebastian River in...
Show moreEffluent from on-site sewage treatment and disposal systems (OSTDS) is generally known to impact groundwaters and surface waters with nitrogen (N) and phosphorus (P) and other contaminants. Little research has quantified this problem along the Indian River Lagoon (IRL), especially in Indian River County (IRC) where there are 26,660 active systems. This study assessed the effects of OSTDS on contamination of surface and groundwaters along three urbanized canals and the St. Sebastian River in IRC, all of which flow into the Central IRL. Multiple lines of evidence were used to define the source of the nutrient loadings including the novel approach of using the artificial sweetener, sucralose, as an indicator of human sewage impact. Results indicate that areas with high densities of OSTDS are contributing N to surface waters and elevating N:P ratios through submarine groundwater discharge and promoting eutrophication in the Central IRL.
Show less - Date Issued
- 2014
- PURL
- http://purl.flvc.org/fau/fd/FA00004335, http://purl.flvc.org/fau/fd/FA00004335
- Subject Headings
- Groundwater -- Pollution, Indian River (Lagoon) -- Environmental aspects, Indian River County (Fla.) -- Environmental aspects, Nutrient pollution of water, Saint Sebastian River (Fla.) -- Environmental aspects, Sewage disposal, Sewerage, Water -- Pollution -- Point source identification, Water quality -- Management
- Format
- Document (PDF)
