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Title: Algal Conditions in the Caloosahatchee River (1975-79), Lake Okeechobee to Franklin Lock, Florida.
Creator: McPherson, Benjamin F., La Rose, Henry R., Geological Survey (U.S.)
Abstract / Description: This report compiles algae measurements between 1975 to 1979 in the Caloosahatchee River.
Date Issued: 1982
Identifier: fgcu_swfe_0516
Format: Document (PDF)

Title: Analysis of Selected Benthic Communities in the Florida Everglades with Reference to Their Physical and Chemical Environment.
Creator: Waller, Bradley G., United States, Geological Survey (U.S.)
Abstract / Description: The purpose of this investigation is to document the types of aquatic benthic organisms found within the Everglades and to determine the extent to which the chemical and physical character of surface water and bottom materials affect their distribution and community structure. The scope of this investigation included the collection of benthic organisms from October 1972 to April 1974. Two samplings were completed during the dry season (April 1973-74) and two during the wet season (October...
Show moreThe purpose of this investigation is to document the types of aquatic benthic organisms found within the Everglades and to determine the extent to which the chemical and physical character of surface water and bottom materials affect their distribution and community structure. The scope of this investigation included the collection of benthic organisms from October 1972 to April 1974. Two samplings were completed during the dry season (April 1973-74) and two during the wet season (October 1972-73). Of the 12 stations sampled, 10 were canals and 2 were in the open marsh. Comparison of species diversities calculated from similar investigations done in south Florida in recent years is made.
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Date Issued: [1976], 1976, 1976
Identifier: 02691964, fgcu_swfe_0389, AAA3914 QF
Format: Document (PDF)

Title: Appraisal of the Water Resources of Charlotte County, Florida.
Creator: Sutcliffe, Horace, Florida, Southwest Florida Water Management District, Floridiana Collection, Southwest Florida Water Management District (Fla.), Geological Survey (U.S.)
Abstract / Description: The U.S. Geological Survey began a 3-year investigation in 1967. Its purpose was to provide a general description of the hydrology of Charlotte County, and to identify the major hydrologic problems of the county, particularly with respect to the use of ground and surface water for public supply. Because most of the available surface-water resources in the county had already been developed, emphasis was placed on evaluating the ground-water resources. This report summarizes the findings of the...
Show moreThe U.S. Geological Survey began a 3-year investigation in 1967. Its purpose was to provide a general description of the hydrology of Charlotte County, and to identify the major hydrologic problems of the county, particularly with respect to the use of ground and surface water for public supply. Because most of the available surface-water resources in the county had already been developed, emphasis was placed on evaluating the ground-water resources. This report summarizes the findings of the investigation.
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Date Issued: 1975
Identifier: 76623490 //r83, fgcu_swfe_0050, 02799720, 000225884
Format: Document (PDF)

Title: Appraisal of the Water Resources of Charlotte County, Florida.
Creator: Sutcliffe, Horace., Geological Survey (U.S.), Southwest Florida Water Management District (Fla.), Florida
Abstract / Description: This 3-year cooperative investigation was begun in 1967 by the U.S. Geological Survey at the request of the Southwest Florida Water Management District as part of their continuing program of water-resources investigations within the Management District. The purpose of the investigation was to provide a generalized description of the hydrology of Charlotte County and to identify the major hydrologic problems of the county, particularly with respect to use of ground and surface water for public...
Show moreThis 3-year cooperative investigation was begun in 1967 by the U.S. Geological Survey at the request of the Southwest Florida Water Management District as part of their continuing program of water-resources investigations within the Management District. The purpose of the investigation was to provide a generalized description of the hydrology of Charlotte County and to identify the major hydrologic problems of the county, particularly with respect to use of ground and surface water for public supply. Because most of the available surface-water resources in the County had already been developed, emphasis was placed on evaluating the ground-water resources. This report summarizes the findings of the investigation.
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Date Issued: 1973
Identifier: 02470428, fgcu_swfe_0342, AAA3927 QF
Format: Document (PDF)

Title: An Assessment of the Flow of Variable-Salinity Ground Water in the Middle Confining Unit of the Floridan Aquifer System, West-Central Florida.
Creator: Hickey, John J., Geological Survey (U.S.), Southwest Florida Water Management District (Fla.)
Abstract / Description: The objective of this report is to assess whether or not the moderately saline to briny ground water in the middle confining unit of the Floridan aquifer system is likely to move vertically into the overlying fresh ground water as a result of ground-water development in the Upper Floridan aquifer.
Date Issued: 1990
Identifier: 22694906, fgcu_swfe_0313, AAA3812 QF
Format: Document (PDF)

Title: The Benchmark Farm Program: a Method for Estimating Irrigation Water Use in Southwest Florida.
Creator: Duerr, A. D., Trommer, J. T., Geological Survey (U.S.), Southwest Florida Water Management District (Fla.)
Abstract / Description: The purpose of this report is to present irrigation water-use data for selected farms and to show how these data are used to estimate total water use for irrigating various crops in southwest Florida. The study area includes all of the Southwest Florida Water Management District.
Date Issued: 1982
Identifier: 09047425, fgcu_swfe_0312, AAA3888 QF
Format: Document (PDF)

Title: Bibliography of U.S. Geological Survey Reports on the Water Resources of Florida, 1886-1995.
Creator: Garcia, Carmen A., Hoy, N. D., Geological Survey (U.S.)
Abstract / Description: This bibliography lists U.S. Geological Survey reports of investigations of Florida water resources published from 1886 through March 1995. It is arranged alphabetically in three sections: senior author, geographic area, and selected special topics.
Date Issued: 1995
Identifier: 95169071, 32600224, fgcu_swfe_0057
Format: Document (PDF)

Title: Chemical Effects of Highway Runoff on the Surficial Aquifer, Broward County, Florida.
Creator: Howie, Barbara., Waller, Bradley G., Broward County (Fla.), Geological Survey (U.S.)
Abstract / Description: The purpose of this investigation was to determine the quality of highway runoff and to assess its effect on the distribution of selected chemical constituents contained in the water of the unsaturated and saturated zones of the surficial aquifer. These data provide insight into the relative magnitude of chemical attenuation which occurs in stormwater percolate (infiltrate) in unsaturated sand under a vegetated swale. The scope of the study included chemical analyses of lithologic material at...
Show moreThe purpose of this investigation was to determine the quality of highway runoff and to assess its effect on the distribution of selected chemical constituents contained in the water of the unsaturated and saturated zones of the surficial aquifer. These data provide insight into the relative magnitude of chemical attenuation which occurs in stormwater percolate (infiltrate) in unsaturated sand under a vegetated swale. The scope of the study included chemical analyses of lithologic material at two test sites and one control site, and chemical analyses of stormwater runoff collected from the swale, water from the unsaturated zone, and water from the saturated zone underneath the swale at two test sites. The period of study was May through November 1983. The chemical constituents selected as tracers were lead, zinc, iron, cadmium, chromium, nickel, mercury, nitrogen, and phosphorus. These constituents are ocmmonly used as gross indicators of urban contamination. This report presents the results of data primarly analyzed using analysis of variance techniques. A complete listing of the results of chemical analyses also is presented.
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Date Issued: 1986
Identifier: 15172161, fgcu_swfe_0370, AAA3847 QF
Format: Document (PDF)

Title: Chloride Concentrations in the Coastal Margin of the Floridan Aquifer, Southwest Florida.
Creator: Causseaux, K. W., Fretwell, J. D., Southwest Florida Water Management District (Fla.), Geological Survey (U.S.)
Abstract / Description: The purpose of the study was to design an effective network of wells for monitoring the location and movement of the saltwater-freshwater mixed zone in the Floridan aquifer in west-central Florida. This report presents proposed locations of wells for monitoring chloride concentrations in the coastal margin of the Southwest Florida Water Management District. Selection of well sites was based on ground-water movement, centers of ground-water withdrawals, areas of increasing chloride...
Show moreThe purpose of the study was to design an effective network of wells for monitoring the location and movement of the saltwater-freshwater mixed zone in the Floridan aquifer in west-central Florida. This report presents proposed locations of wells for monitoring chloride concentrations in the coastal margin of the Southwest Florida Water Management District. Selection of well sites was based on ground-water movement, centers of ground-water withdrawals, areas of increasing chloride concentrations, and the 1979 position of the 250-mg/L line of equal chloride concentration in the upper part of the Floridan aquifer.
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Date Issued: 1983
Identifier: 10478596, fgcu_swfe_0280
Format: Document (PDF)

Title: A Comparison of Drainage Basin Nutrient Inputs with Instream Nutrient Loads for Seven Rivers in Georgia and Florida, 1986-90.
Creator: Asbury, Clyde E. (Clyde Ellis), Oaksford, Edward T., Geological Survey (U.S.), National Water-Quality Assessment Program (U.S.)
Abstract / Description: Instream nutrient loads of the Altamaha, Suwannee, St. Johns, Satilla, Ogeechee, Withlacoochee, and Ochlockonee River basins were computed and compared with nutrient inputs for each basin for the period 1986-90. Nutrient constituents that were considered included nitrate, ammonia, organic nitrogen, and total phosphorus. Sources of nutrients considered for this analysis included atmospheric deposition, fertilizer, animal waste, wastewater-treatment plant discharge, and septic discharge.
Date Issued: 1997
Identifier: 37874495, fgcu_swfe_0375, AAA3751 QF
Format: Document (PDF)

Title: Comparison of Two Methods for Estimating Discharge and Nutrient Loads from Tidally Affected Reaches of the Myakka and Peace Rivers, West-Central Florida.
Creator: Levesque, Victor A., Hammett, K. M., Geological Survey (U.S.), Southwest Florida Water Management District (Fla.)
Abstract / Description: The purpose of this report is to describe and compare two methods (the tidal-estimation and basin-ratio methods) that were used for estimating discharge and nutrient loads for the tidal reaches of the Myakka and Peace River Basins. Data were collected during four separate 30-day periods during 1994 and 1995; two of the periods represented low-flow conditions and two represented high-flow conditions. Both methods were used to compute discharge and nutrient loads for the data-collection periods...
Show moreThe purpose of this report is to describe and compare two methods (the tidal-estimation and basin-ratio methods) that were used for estimating discharge and nutrient loads for the tidal reaches of the Myakka and Peace River Basins. Data were collected during four separate 30-day periods during 1994 and 1995; two of the periods represented low-flow conditions and two represented high-flow conditions. Both methods were used to compute discharge and nutrient loads for the data-collection periods, and the results were then compared.
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Date Issued: 1997
Identifier: 98114241, 37209316, fgcu_swfe_0475, AAA3753 QF
Format: Document (PDF)

Title: Deep Artesian Aquifers of Sanibel and Captiva Islands, Lee County, Florida.
Creator: Boggess, Durward H., O'Donnell, T., Sanibel (Fla.), Board of Commissioners of Lee County (Fla.), Geological Survey (U.S.)
Abstract / Description: During the time that the desalination plant has been in operation, questions have been raised by water-management agencies concerning the ability of the deep artesian aquifers underlying Sanibel and Captiva Islands to continue supplying the water needed to meet the increasing demand with a salinity low enough for the desalination plant to operate effectively. The purpose of this investigation was to evaluate the water-supply potential of the deeper aquifers. During the 24-month investigation ...
Show moreDuring the time that the desalination plant has been in operation, questions have been raised by water-management agencies concerning the ability of the deep artesian aquifers underlying Sanibel and Captiva Islands to continue supplying the water needed to meet the increasing demand with a salinity low enough for the desalination plant to operate effectively. The purpose of this investigation was to evaluate the water-supply potential of the deeper aquifers. During the 24-month investigation (October 1975-1977) an important objective was to locate and inventory all existing wells that tapped the deep artesian aquifers. Except for a few, all known wells were found. Water levels and water samples were obtained at the wells. No test wells were drilled as part of this investigation, although one observation well was drilled on Sanibel Island as part of a countywide monitoring network.
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Date Issued: 1982
Identifier: 08449580, fgcu_swfe_0479, AAA3889 QF
Format: Document (PDF)

Title: Drought of 1980-82 in southeast Florida with comparison to the 1961-62 and 1970-71 droughts.
Creator: Waller, Bradley G., South Florida Water Management District (Fla.), Geological Survey (U.S.)
Abstract / Description: The purpose of this investigation was to evaluate effects of the 1980-1982 drought on the hydrologic system in southeast Florida and compare it with the previous droughts of 1961-1962 and 1970-1971. The droughts were analyzed from the standpoint of antecedent and transient hydrologic conditions and the effect of management practices by the South Florida Water Management District to alleviate extreme hydrologic conditions and minimize saltwater intrusion. Graphical and statistical analyses of...
Show moreThe purpose of this investigation was to evaluate effects of the 1980-1982 drought on the hydrologic system in southeast Florida and compare it with the previous droughts of 1961-1962 and 1970-1971. The droughts were analyzed from the standpoint of antecedent and transient hydrologic conditions and the effect of management practices by the South Florida Water Management District to alleviate extreme hydrologic conditions and minimize saltwater intrusion. Graphical and statistical analyses of rainfall, water levels, discharge, and chloride concentrations for selected stations are presented.
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Date Issued: 1985
Identifier: 12848514, fgcu_swfe_0285
Format: Document (PDF)

Title: Effect of Spray Irrigation of Treated Wastewater on Water Quality of the Surficial Aquifer System, Reedy Creek Improvement District, Central Florida.
Creator: German, E. R., Reedy Creek Improvement District (Fla.), Geological Survey (U.S.)
Abstract / Description: This report describes results of a study of the hydrology of the Reedy Creek Improvement District tree farm area where treated wastewater is used for irrigation. Included in this report are descriptions of: direction of movement and destination of the wastewater and constituents in the surficial aquifer system underlying the tree farm area; rate of movement of the wastewater front; effect of the wastewater application on water quality of the underlying aquifer and the areal extent of the...
Show moreThis report describes results of a study of the hydrology of the Reedy Creek Improvement District tree farm area where treated wastewater is used for irrigation. Included in this report are descriptions of: direction of movement and destination of the wastewater and constituents in the surficial aquifer system underlying the tree farm area; rate of movement of the wastewater front; effect of the wastewater application on water quality of the underlying aquifer and the areal extent of the wastewater plume in the surficial aquifer system; the nature of the processes affecting assimilation of the wastewater-related constituents in the ground-water system; and hydraulic characteristics of the surficial aquifer system. The area studied includes the entire tree farm area located to the north of Canal L-410. This investigation was conducted from October 1981 through September 1985. The work included installation of a monitoring well network in the surficial aquifer system, determination of lithology of the aquifer material, determination of transmissivity of the surfical aquifer system and sampling of the well network to characterize water quality of the surficial aquifer system underlying the tree farm and the surrounding area. The water-quality sampling was done four times between May 1983 and October 1984.
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Date Issued: 1990
Identifier: 22788208, fgcu_swfe_0392, AAA3816 QF
Format: Document (PDF)

Title: Effects of Nitrogen and Phosphorus dditions on Phytoplankton Productivity and Chlorophyll in a Subtropical Estuary, Charlotte Harbor, Florida.
Creator: Montgomery, Ralph T., McPherson, Benjamin F., Emmons, Edward E., Geological Survey (U.S.), Florida
Abstract / Description: This report presents the results of a study to evaluate the effects of inorganic nitrogen and phosphorus additions on phytoplankton productivity and chlorophyll-a concentrations in a subtropical Florida coastal plain estuary and assesses the potential effects of increased nutrient concentrations on future phytoplankton production within the Charlotte Harbor system. The results of this estuarine phytoplankton productivity study are discussed in terms of the seasonal and areal variations in...
Show moreThis report presents the results of a study to evaluate the effects of inorganic nitrogen and phosphorus additions on phytoplankton productivity and chlorophyll-a concentrations in a subtropical Florida coastal plain estuary and assesses the potential effects of increased nutrient concentrations on future phytoplankton production within the Charlotte Harbor system. The results of this estuarine phytoplankton productivity study are discussed in terms of the seasonal and areal variations in ambient-nutrient concentrations and hydrologic conditions. The potential implications that increased anthropogenic-nutrient inputs may have on primary productivity within specific hydrologically defined areas of the harbor are also examined.
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Date Issued: 1991
Identifier: 25103603, fgcu_swfe_0467, AAA3971 QF
Format: Document (PDF)

Title: The Effects of Plugging a Deep Artesian Well on the Concentration of Chloride in Water in the Water-Table Aquifer at Highland Estates, Lee County, Florida.
Creator: Boggess, Durward H., Geological Survey (U.S.), Florida, Lee County (Fla.)
Abstract / Description: Upward leakage of saline water from deep artesian wells has caused widespread deterioration in quality of water in the shallow artesian aquifers underlying Lee County, Florida. The water-table aquifer has been affected similarly when saline water from the deep artesian wells has been allowed to discharge at the surface, or when corroded well casings have developed leaks at shallow depth. A program is underway (1972) in Lee County and adjacent areas to minimize or eliminate these problems by...
Show moreUpward leakage of saline water from deep artesian wells has caused widespread deterioration in quality of water in the shallow artesian aquifers underlying Lee County, Florida. The water-table aquifer has been affected similarly when saline water from the deep artesian wells has been allowed to discharge at the surface, or when corroded well casings have developed leaks at shallow depth. A program is underway (1972) in Lee County and adjacent areas to minimize or eliminate these problems by plugging deep artesian wells. Although a large number of wells has been plugged in Lee County as well as in other areas, little documentation has been obtained concerning the residual effects on quality of the water in the intruded aquifers after elimination of the discharge or leakage. The purpose of this report is to present the results of an investigation wherein the quality of water in the water-table aquifer improved after a deep artesian well was plugged.
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Date Issued: 1973
Identifier: 02482996, fgcu_swfe_0369, AAA3930 QF
Format: Document (PDF)

Title: Effects on Water Quality in the Shallow Aquifer due to the Operation of the Cross State Dump, Palm Beach County, Florida.
Creator: Schneider, James J., Geological Survey (U.S.), Palm Beach County (Fla.)
Abstract / Description: The Cross State Dump, 7 miles west of West Palm Beach has been used a solid waste disposal site since the late 1940's. The Palm Beach County Engineering Department and the Department of Health have been concerned about the effect that the accumulation of wastes in the landfill might have on the ground-water supplies in the vicinity. The U.S. Geological Survey made a study, in cooperation with those agencies, to evaluate the quality of ground water beneath and adjacent to the dump. This report...
Show moreThe Cross State Dump, 7 miles west of West Palm Beach has been used a solid waste disposal site since the late 1940's. The Palm Beach County Engineering Department and the Department of Health have been concerned about the effect that the accumulation of wastes in the landfill might have on the ground-water supplies in the vicinity. The U.S. Geological Survey made a study, in cooperation with those agencies, to evaluate the quality of ground water beneath and adjacent to the dump. This report is based on information obtained from 22 wells and 10 canal sites from August 1970 through March 1972.
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Date Issued: 1973
Identifier: 02473168, fgcu_swfe_0374, AAA3929 QF
Format: Document (PDF)

Title: Factors Controlling Elevated Lead Concentrations in Water Samples from Aquifer Systems in Florida.
Creator: Katz, Brian G., Florida, Geological Survey (U.S.)
Abstract / Description: This report presents results of detailed statistical analyses of total and dissolved lead concentrations in water samples collected from major aquifer systems in Florida for the Florida Ground Water Quality Monitoring Network to determine the influence of anthropogenic factors on elevated lead concentrations. In addition, lead isotopic data are presented for water samples collected from a subset of 13 wells in the monitoring network, samples of aquifer material, rainfall, and lead...
Show moreThis report presents results of detailed statistical analyses of total and dissolved lead concentrations in water samples collected from major aquifer systems in Florida for the Florida Ground Water Quality Monitoring Network to determine the influence of anthropogenic factors on elevated lead concentrations. In addition, lead isotopic data are presented for water samples collected from a subset of 13 wells in the monitoring network, samples of aquifer material, rainfall, and lead counterweights. The lead-isotope data provide a better understanding of the relative contributions of anthropogenic and natural sources of lead in ground water samples from Florida's major aquifer systems.
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Date Issued: 1999
Identifier: 41248146, fgcu_swfe_0371, AAA4769 QF
Format: Document (PDF)

Title: Feasibility of Water-Supply Development from the Unconfined Aquifer in Charlotte County, Florida.
Creator: Wolansky, R. M. (Richard M.), Southwest Florida Water Management District (Fla.), Geological Survey (U.S.)
Abstract / Description: This report presents the results of a 2-year study undertaken by the U.S. Geological Survey in cooperation with the Southwest Florida Water Management District. It describes the geology and hydrology of the unconfined aquifer in Charlotte County, and the most feasible methods for reasonably developing the water-supply potential of the aquifer, so that there will not be a long-term decrease in the quantity of water remaining in storage each year. The investigation is based upon information...
Show moreThis report presents the results of a 2-year study undertaken by the U.S. Geological Survey in cooperation with the Southwest Florida Water Management District. It describes the geology and hydrology of the unconfined aquifer in Charlotte County, and the most feasible methods for reasonably developing the water-supply potential of the aquifer, so that there will not be a long-term decrease in the quantity of water remaining in storage each year. The investigation is based upon information obtained from test holes, observation wells, private wells and excavations into the unconfined aquifer. Some sites outside the county were also investigated to broaden the information base. The overall intent of the investigation is to describe the unconfined aquifer system and to assess the water-supply potential of the aquifer to aid in planning for development and future growth of the county.
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Date Issued: 1978
Identifier: 04544495, fgcu_swfe_0394, AAA3906 QF
Format: Document (PDF)

Title: Flood of September 20-23, l969, in the Gadsden County area, Florida.
Creator: Bridges, W. C., Davis, D. R., Geological Survey (U.S.)
Abstract / Description: A small tropical disturbance moved northward from the Gulf of Mexico on September 20, 1969, and became quasi-stationary for about 48 hours in the coastal area between Port St. Joe and Panama City, Florida. Rainfall associated with the disturbance was in excess of 20 inches over an area bounded by the towns of Attapulgus, Georgia and Quincy and Havana, Florida. This report documents the magnitude and extent of flooding for September 20-23, 1969. The report describes flood damage, rainfall...
Show moreA small tropical disturbance moved northward from the Gulf of Mexico on September 20, 1969, and became quasi-stationary for about 48 hours in the coastal area between Port St. Joe and Panama City, Florida. Rainfall associated with the disturbance was in excess of 20 inches over an area bounded by the towns of Attapulgus, Georgia and Quincy and Havana, Florida. This report documents the magnitude and extent of flooding for September 20-23, 1969. The report describes flood damage, rainfall intensities, and storm characterization. It gives peak discharges at selected sites and flood profiles of selected reaches of three streams, and makes comparisons with previous flood peaks.
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Date Issued: 1972
Identifier: 02012098, fgcu_swfe_0463, AAA3939 QF
Format: Document (PDF)

Charlotte Harbor Information Resource Center documents (55)	+ -
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Water quality (16)	+ -
Water-supply (15)	+ -
Geological Survey (U.S.) (13)	+ -

Geological surveys -- Florida (11)	+ -
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