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Special publications
1993 to 1997

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1997

PUB. NO.: SJ97-SP1

By: Subsurface Detection Investigations, Inc.

Title:
Time domain electromagnetic mapping of salt water in the Floridan aquifer in northeast and east-central Florida: St. Johns River Water Management District: November 1996

A time domain electromagnetic survey was performed at seven sites in the St. Johns River Water Management District during June 1996 as a way to measure the vertical distribution of electrical resistivity. The report documents soundings to determine thickness of groundwater sources.

PUB. NO.: SJ97-SP2

By: W. Hoffman

Title:
Survey of wading bird utilization of the upper St. Johns River: 1993–1995

This report documents a project to determine numbers of wading birds using the Upper Basin of the St. Johns River, both as foraging habitat and for nesting, and to use these data in assessing the success of the upper basin project in restoring productive wildlife habitat.

PUB. NO.: SJ97-SP3

By: Law Engineering and Environmental Services, Inc.

Title:
Water supply needs and sources assessment: Alternative water supply strategies investigation: Water supply and wastewater systems component cost information

To address the future needs for water resource caution areas, including all or portions of Volusia, Brevard, Orange, Seminole, Osceola, Lake, St. Johns, and Flagler counties, the St. Johns River Water Management District initiated an alternative water supply strategies investigation. Cost information for public water supply and wastewater system components is presented in this document as a tool for estimating costs during the conceptual planning stage of potential facility projects relating to alternative water supply strategies.

PUB. NO.: SJ97-SP4

By: CH2M Hill

Title:
Water supply needs and sources assessment: Alternative water supply strategies investigation: A tool for assessing the feasibility of aquifer storage recovery

The St. Johns River Water Management District initiated an investigation of the feasibility of alternative water supply strategies because increasing groundwater usage is not likely to occur without causing unacceptable environmental impacts. This document addresses the possible use of aquifer storage recovery.

PUB. NO.: SJ97-SP5

By: L. Motz and D. Strazimiri

Title:
Jacksonville Beach subregional flow and transport model

Groundwater flow and chloride concentrations were modeled by the St. Johns River Water Management District on a regional basis in northeast Florida, but subregional-scale models were required in specific areas to address conditions at individual wellfields.

PUB. NO.: SJ97-SP6

By: C. Ware

Title:
Initial plant list of land-based communities: St. Johns River Water Management District (May 1996)

This report includes an initial plant species list for 41 natural community types occurring in the St. Johns River Water Management District (SJRWMD), an initial checklist of plant species, and a list of plant specimens as an initial biological inventory of SJRWMD.

PUB. NO.: SJ97-SP7

By: CH2M Hill

Title:
Water supply needs and sources assessment: Alternative water supply strategies investigation: Surface water availability and yield analysis

This is the third in a series concerned with the feasibility of developing selected surface water sources to help meet municipal water supply needs within the St. Johns River Water Management District. This report presents the results of the quantitative water supply availability and yield analysis.

PUB. NO.: SJ97-SP8

By: C. Robison, G. Hall, C. Ware, and R. Hupalo

Title:
Water management alternatives: Effects on lake levels and wetlands in the Orange Creek Basin

This report documents the development of the biohydrologic criteria and methods used to evaluate the ecological effects of different surface water management alternatives on the Orange Creek Basin.

PUB. NO.: SJ97-SP9

By: F. Casey, P. Byrne, and R. Weldon

Title:
The economic feasibility of automated sub-drip irrigation for potato production in Florida: A synthesis report

This report investigates the costs and benefits associated with the conversion from semi-enclosed seep irrigation to either automated seep or automated sub-drip irrigation for potato production in northeast Florida. These costs and benefits are estimated at the level of the individual grower and for the public at large.

PUB. NO.: SJ97-SP10

By: H. Schramm Jr., and L. Pugh

Title:
Gizzard shad stock estimate for Lake Apopka, Florida, 1995

Gizzard shad, Dorosoma cepedianum, have achieved a large biomass in Lake Apopka, Florida. Removal of a large portion of this biomass will remove significant amounts of phosphorus in this highly eutrophic lake and help create conditions more conducive for establishing desirable sportfish populations. This report provides population estimates of gizzard shad prior to a 1995 harvest and evaluates methods used to produce population estimates.

PUB. NO.: SJ97-SP11

By: H. Schramm Jr., and L. Pugh

Title:
Gizzard shad stock estimate for Lake Apopka, Florida, 1996

Gizzard shad, Dorosoma cepedianum, have achieved a large biomass in Lake Apopka, Florida. Removal of a large portion of this biomass will remove significant amounts of phosphorus in this highly eutrophic lake and help create conditions more conducive for establishing desirable sportfish populations. Gizzard shad were harvested from Lake Apopka between March and May 1996. Evaluation of this restoration method requires determining the proportion of the total gizzard shad population harvested. This report provides population estimates of gizzard shad prior to the harvest and evaluates methods used to produce the population estimates.

PUB. NO.: SJ97-SP12

By: Post, Buckley, Schuh and Jernigan, Inc.

Title:
Water supply needs and sources assessment: Alternative water supply strategies investigation: Effects of water use restrictions on actual water use

This report documents findings of water conservation and reuse of reclaimed water within water resource caution areas identified in Water Supply Needs and Sources Assessment (Vergara 1994), specifically with assessing the effects of water use restrictions on actual water use within the Wekiva River Basin.

PUB. NO.: SJ97-SP13

By: CH2M Hill

Title:
Water supply needs and sources assessment: Alternative water supply strategies investigation: Conceptual design of wetland augmentation systems for recommendations for pilot augmentation projects

This report is a part of the overall scope of assessing the technical, environmental, and economic feasibility of mitigating or avoiding impacts to native wetland communities that could result from projected future (year 2010) groundwater withdrawals in water resource caution areas.

PUB. NO.: SJ97-SP14

By: CH2M Hill

Title:
Water supply needs and sources assessement: Alternative water supply strategies investigation: Artificial recharge of the Floridan aquifer through drainage or injection wells in Orange and Seminole counties

This report documents the use of drainage wells in Orange and Seminole counties since 1905, which are primarily to provide surface drainage and to prevent flooding in closed surface basins.

PUB. NO.: SJ97-SP15

By: CH2M Hill

Title:
Water supply needs and sources assessment: Alternative water supply strategies investigation: Planning level cost estimates: Development of surface water supply

This report is the fourth in a series concerned with the feasibility of developing selected surface water sources to help meet municipal water supply needs within the St. Johns River Water Management District. This report presents the results of the cost estimation for water supply development at withdrawal sites in Lake Griffin (Haynes Creek), the St. Johns River near Cocoa, the St. Johns River near Titusville, the St. Johns River at Sanford (Lake Monroe), and the St. Johns River near DeLand.

PUB. NO.: SJ97-SP16

By: CH2M Hill

Title:
Water supply needs and sources assessment: Alternative water supply strategies investigation: Planning level cost estimates: Aquifer storage and recovery utility evaluations

This report, the second in the aquifer storage recovery (ASR) series, applies an ASR feasibility tool to selected sites within the St. Johns River Water Management District as part of continuing investigations of alterative water supplies.

PUB. NO.: SJ97-SP17

By: Law Engineering and Environmental Services, Inc.

Title:
Water supply needs and sources assessment: Alternative water supply strategies investigation: Planning level assessment of the feasibility of a regionally interconnected reuse system in Brevard and Indian River counties

This study assessed the feasibility of a regionally interconnected reuse system in Brevard and Indian River counties to transport reclaimed water to locations in Brevard and Indian River counties for use in irrigating citrus or for other reasonable-beneficial uses.

PUB. NO.: SJ97-SP18

By: F. Morris IV and J. Miller

Title:
Bibliography of the Indian River Lagoon scientific information system, 2nd. ed.

This document is a bibliographic listing of references and information about the Indian River Lagoon.

PUB. NO.: SJ97-SP19

By: CH2M Hill

Title:
Water supply needs and sources assessment: Alternative water supply strategies: Brackish groundwater: Treatment technology assessment

This is the second of three reports that address the feasibility of developing brackish groundwater resources to help meet future public supply needs. This report reviews relevant information and technical literature on technologies available to treat brackish groundwater and disposal options available to manage the waste concentrate stream associated with brackish water treatment.

PUB. NO.: SJ97-SP20

By: M. Brenner

Title:
Bulk sedimentation and nutrient accumulation rates in lakes of the Upper St. Johns River Basin: Final report

Paleolimnological techniques were used to examine historical bulk sediment accumulation and nutrient sequestering in Lake Hell ’n’ Blazes, Sawgrass Lake, and Lake Washington, within the upper St. Johns River drainage basin. At selected sites in each water body, soft-sediment depth was measured to ascertain the distribution of organic deposits.

PUB. NO.: SJ97-SP21

By: Department of Fisheries and Aquatic Sciences, University of Florida

Title:
Sediment and phosphorus deposition in Lake Apopka: Final report

Sediment studies in Lake Apopka were undertaken to characterize and determine the origins of the flocculent and consolidate sediment layers in the lake, and to estimate lake basin sedimentation of mass, organic matter, total phosphorus, and inorganic phosphorus.

PUB. NO.: SJ97-SP22

By: D. Rao, S. Jenab, and D. Clapp

Title:
Rainfall analysis for northeast Florida: Summary of monthly and annual rainfall data through 1995

This report documents how rainfall data are essential for many hydrologic and engineering studies, including the St. Johns River Water Management District’s consumptive use and environmental resource permitting activities. Data are also used in hydrologic and engineering studies related to management plans for surface water basins. This report is an update of one of the reports from the former series about the summary of monthly and annual rainfall data through 1985 and includes the 1961–90 rainfall normals. It replaces the former report.

PUB. NO.: SJ97-SP23

By: J. Crumpton and W. Godwin

Title:
Rough fish harvesting in Lake Apopka: Summary report: 1993–97

This report documents the St. Johns River Water Management District’s request to the Florida Fish and Wildlife Conservation Commission to allow the large-scale harvest of rough fish (gizzard shad, gar, and tilapia) from Lake Apopka to remove nitrogen and phosphorus from the lake as well as potentially change the lake food chain. It also lists the results of harvesting the rough fish.

1996

PUB. NO.: SJ96-SP1

By: CH2M Hill

Title:
Water supply needs and sources assessment: Alternative water supply strategies investigation: Surface water data acquisition and evaluation methodology

The St. Johns River Water Management District (SJRWMD) has determined that increased groundwater withdrawals could adversely impact area water resources, especially wetland systems located near existing water supply wellfields. Because of these adverse impacts, SJRWMD investigated the technical, environmental, and economic feasibility of alternative water supply strategies, including the development of additional surface water supplies.

PUB. NO.: SJ96-SP2

By: R. Bennetts, M. Steinkamp, and W. Kitchens

Title:
Numbers, distribution, and success of nesting snail kites in the Blue Cypress water management and conservation areas

This study comprised a systematic weekly search of the Blue Cypress Marsh Water Conservation Area and the Blue Cypress Water Management Area, Indian River County, for nesting snail kites.

PUB. NO.: SJ96-SP3

By: D. Rao and D. Clapp

Title:
Preliminary evaluation of the impacts of spring discharge reductions on the flows of receiving water bodies and natural systems, central Florida

Groundwater comprised about 70% of the 1990 total water use in the St. Johns River Water Management District. This use is expected to increase substantially by 2010. The resulting increase in groundwater withdrawals can lead to a reduction in spring discharges, among other impacts. This publication presents methods to quantify the impacts of reduced spring discharges that would occur because of the projected groundwater withdrawals for 2010. These methods were applied to evaluate the impacts of 31 springs in the central Florida area.

PUB. NO.: SJ96-SP4

By: CH2M Hill

Title:
Water supply needs and sources assessment: Alternative water supply strategies investigation: Surface water withdrawal sites

This report is the second in a series of three that address the feasibility of developing surface water for domestic water supply within the St. Johns River Water Management District. The objective of surface water withdrawal site selection is to identify candidate surface water supply source locations that are within reasonable proximity to centers of significant increases in regional domestic water supply demand.

PUB. NO.: SJ96-SP5

By: P. Burger, M. Holland, K. Hatfield, D. Hern, and W. Graham

Title:
Water resource allocation and quality optimization modeling: Final report

This report is in compliance with legislation that requires each water management district to completely evaluate their water needs and sources through the year 2010 and delineate critical areas identified as water resource problems. This report presents systematic modeling methods for determining optimum water supply strategies that satisfy various environmental and hydrological requirements.

PUB. NO.: SJ96-SP6

By: Law Engineering and Environmental Services, Inc.

Title:
Water supply needs and sources assessment: Alternative water supply strategies investigation: Systems interconnection methodology

The report outlines methodology for collection, development, presentation, and utilization of information concerning public water supply systems’ facilities and wastewater systems’ facilities in an effort to investigate potential alternative water supply strategies relative to systems interconnection.

PUB. NO.: SJ96-SP7

By: CH2M Hill

Title:
Water supply needs and sources assessment: Alternative water supply strategies investigation, wetlands impact, mitigation, and planning-level cost estimating procedure

The report documents the St. Johns River Water Management District’s evaluation of several potential consequences of possible water supply alternatives, such as changes to sensitive natural systems, particularly wetlands.

PUB. NO.: SJ96-SP8

By: E. Talton Jr., R. Morrell, and J. Jackson

Title:
Final report, phase I: Replacement of potable-quality water for landscape irrigation

This report assesses water conservation and reuse of reclaimed water as effective alternative water supply strategies as well as addresses replacement of potable-quality water for landscape irrigation.

PUB. NO.: SJ96-SP9

By: J. Jackson, R. Morrell., and D. MacIntyre

Title:
Final report, phase I: Assessment of the cost of supplying reclaimed water to areas of high agricultural withdrawals

This report investigates the use of reclaimed water in high agricultural areas, identified by the St. Johns River Water Management District as citrus-growing regions along the Lake Wales Ridge in Orange, Lake, and Seminole counties and the fern-growing areas of northwest Volusia County and southeast Putnam County.

PUB. NO.: SJ96-SP10

By: R. Lockridge and J. Jackson

Title:
Final report, phase I: Implementation of water conservation rate structures

The purpose of this report was to determine the potential impacts of water conservation rate structures on reducing potable water consumption and thereby extending the viability of current water supply sources as part of the St. Johns River Water Management District's ongoing efforts to manage water resources.

PUB. NO.: SJ96-SP11

By: A. Rowney, M. Hulley, and J. Jackson

Title:
Final report, phase I: Effects of water use restrictions on actual water use

This task deals with assessing the effects of water use restrictions on actual water use within the Wekiva River Basin as part of the St. Johns River Water Management District’s investigation of alternative water supply strategies.

PUB. NO.: SJ96-SP12

By: W. Schley, J. Jackson, and R. Morrell

Title:
Cost effectiveness of evaporative treatment processes

This report addresses the evaluation of the cost effectiveness of evaporative treatment processes, assessing water conservation and reuse of reclaimed water as effective alternative water supply strategies.

PUB. NO.: SJ96-SP13

By: D. Boniol

Title:
Summary of groundwater quality in the St. Johns River Water Management District: 1990–94

Accurate and reliable water quality data are required to characterize groundwater chemistry for use in groundwater resource management. This report summarizes the groundwater quality of the Floridan, intermediate, and surficial aquifer systems in the St. Johns River Water Management District.

PUB. NO.: SJ96-SP14

By: M. Annable, L. Motz, and W. Beddow

Title:
Investigation of lake and surficial aquifer interaction in the Upper Etonia Creek Basin: Interim report

Over a five- to 10-year period, many of the lakes in the Upper Etonia Creek Basin — in north-central Florida and comprising parts of Alachua, Bradford, Clay, and Putnam counties — experienced significant declines in lake stage, adversely affecting both recreational use and surrounding property values. Long-term hydrologic trends were investigated to help identify factors causing lake stage reductions.

PUB. NO.: SJ96-SP15

By: M. Annable, L. Motz, D. Knapp, G. Sousa, and W. Beddow II

Title:
Investigation of lake and surficial aquifer interaction in the Upper Etonia Creek Basin: Final report

The report addresses efforts to examine lake and surficial aquifer interactions for Lakes Lowry, Magnolia, Brooklyn, and Geneva, and to refine previously calculated water-budgets due to lake level declines in north-central Florida, and comprising parts of Alachua, Bradford, Clay, and Putnam counties.

1995

PUB. NO.: SJ95-SP1

By: J. Davis

Title:
Annual report on abandoned artesian wells 1993 (October 1992 through September 1993)

This document was prepared to comply with the requirements of Section 373.207, Florida Statutes. It is the 11th annual report on the St. Johns River Water Management District's abandoned artesian well inventory and work plan for controlling or plugging inventoried wells.

PUB. NO.: SJ95-SP2

By: Subsurface Detection Investigations, Inc.

Title:
Time domain electromagnetic mapping of salt water in the Floridan aquifer in northeast and east-central Florida: St. Johns River Water Management District: October 1995

A time domain electromagnetic survey was performed at 24 sites in the St. Johns River Water Management District in May 1995. This report details field procedures and data quality control and analyses procedures.

PUB. NO.: SJ95-SP3

By: M. Brenner and C. Schelske

Title:
Historical sedimentation and nutrient storage rates in the Blue Cypress Marsh Conservation Area

Sixteen sediment/water interface cores from the area in and around the Blue Cypress Marsh Conservation Area, Upper St. Johns River Basin, were studied to assess the recent environmental history of the region. The sediment profiles were used to measure recent rates of bulk sediment accumulation, nutrient sequestering rates, rates of mercury deposition, and recent changes in the marsh flora.

PUB. NO.: SJ95-SP4

By: J. Davis

Title:
Annual report on abandoned artesian wells 1994 (October 1993 through September 1994)

This document was prepared to comply with the requirements of Section 373.207, Florida Statutes (1991). This the 12th annual report on the inventory of abandoned artesian wells in the St. Johns River Water Management District and on the work plan for controlling or plugging inventoried wells.

PUB. NO.: SJ95-SP5

By: A. Trippensee, P. Byrne, W. Boggess, and A. Smajstrla

Title:
Management effect on irrigation water use for potato farms of north Florida

The purpose of this study was to determine key factors that influence water usage among potato farms in the tri-county area of St. Johns, Putnam, and Flagler counties. Previous efforts have been limited to analyzing physical characteristics, such as soil type and plant age. This research effort also analyzes management and production techniques.

PUB. NO.: SJ95-SP6

By: G. Schultz and S. Orzell

Title:
A natural areas inventory of the Tiger Bay area in Flagler, St. Johns, and Volusia counties, Florida

The Florida Natural Areas Inventory conducted this survey to locate, evaluate, and describe the natural communities of statewide and countywide significance within the Tiger Bay Study Area (TBSA), and particularly to provide information and descriptions of the most ecologically significant natural areas in the TBSA.

PUB. NO.: SJ95-SP7

By: L. Motz, W. Beddow II, M. Caprara, J. Gay, and S. Sheaffer

Title:
North-central Florida regional groundwater investigation and flow mode (final report)

A north-central Florida regional groundwater flow model was developed to determine the magnitude and causes of the regional decline in groundwater levels in the Upper Floridan aquifer in an area extending westward from Duval County to Alachua County.

1994

PUB. NO.: SJ94-SP1

By: E. Estevez and M. Marshall

Title:
Sebastian River salinity regime: Report of a study: Part 1 — Review of goals, policies, and objectives; Part II — Segmentation; Parts III and IV — Recommended targets

This is the final report of a project to determine desirable salinity conditions in the Sebastian River and the adjacent Indian River Lagoon. The St. Johns River Water Management District wanted to learn the nature of an “environmentally desirable and acceptable salinity regime” for these water bodies to calculate discharges needed to produce the desired salinity regime, or conclude that optimal discharges are beyond its control.

PUB. NO.: SJ94-SP2

By: Subsurface Detection Investigations, Inc.

Title:
Time domain electromagnetic soundings and analysis: St. Johns River Water Management District: Northeast Florida/southeast Georgia: November 1993

A time domain electromagnetic survey was performed at 19 sites in the St. Johns River Water Management District and one site in Georgia to provide a description of the vertical distribution (one-dimensional depth layering) of formation electrical resistivity and to verify water quality information obtained from wells in the test area.

PUB. NO.: SJ94-SP3

By: R. Turner

Title:
The effects of hydrology on the population dynamics of the Florida apple snail (Pomacea paludosa)

The objective of this study was to investigate the effects of hydrology on certain aspects of the life history of the Florida apple snail (Pomacea paludosa), an important component of the marsh food chain and nearly the sole food source for the Florida snail kite (Rostrhamus sociabilis plumbeus). The study results assisted the St. Johns River Water Management District in writing a management plan for public property in the upper basin of the St. Johns River, which is an area of historical habitat for the species.

PUB. NO.: SJ94-SP4

By: Environmental Science and Engineering, Inc.

Title:
Upper St. Johns River marsh controlled burn study: Response of vegetation to a controlled burn in sawgrass and maidencane plant communities in the Upper St. Johns River Basin: Final report

This study describes the effect of prescribed fire on the natural marsh communities within the Upper St. Johns River Basin. The objective of the study was to measure aboveground biomass and species composition prior to and following controlled burns in two marsh communities, one dominated by sawgrass (Cladium jamaicense) and the other dominated by maidencane (Panicum hemitomon).

PUB. NO.: SJ94-SP5

By: J. Benton, D. Douglas, and R. Watson

Title:
Ichthyofaunal studies as part of the trophic structure manipulation project: Final report for segments I-III for the St. Johns River Water Management District

Lakes Denham, Apopka, and Beauclair were sampled from January 1989 through June 1992 to assess the fish community of each lake and evaluate the response of gizzard shad removal on gamefish populations.

PUB. NO.: SJ94-SP6

By: T. Birdie and T. Blandford

Title:
Groundwater flow and solute transport modeling study for Seminole County, Florida, and adjoining regions

The study is part of an ongoing program to address the need for a long-term, environmentally sound water resources management policy. The primary purpose of this study is to provide a quantitative tool to assist with groundwater resources planning and management efforts in Seminole County.

PUB. NO.: SJ94-SP7

By: D. Haman, A. Smajstrla, and F. Zazueta

Title:
Water use and irrigation scheduling of young blueberries

This study was undertaken (1) to determine evapotranspiration and irrigation requirements of Florida blueberries, (2) to develop crop water use coefficients and to estimate crop water use from climate factors, and (3) to evaluate three irrigation scheduling methods.

PUB. NO.: SJ94-SP8

By: Subsurface Detection Investigations, Inc.

Title:
Time domain electromagnetic mapping of salt water in the Floridan aquifer in northeast and east-central Florida: St. Johns River Water Management District: October 1994

A time domain electromagnetic survey was performed at 30 sites in the St. Johns River Water Management District to provide a description of the vertical distribution (one-dimensional depth layering) of formation electrical resistivity and to verify water quality information obtained from wells in the test area.

PUB. NO.: SJ94-SP9

By: F. Davies and D. Graetz

Title:
Final report: Microsprinkler irrigation of grapefruit in the flatwoods using reclaimed wastewater

In 1989, a joint project was initiated between the St. Johns River Water Management District, Indian River County, and the University of Florida to study the effects of reclaimed wastewater on growth and development of citrus trees, yields, fruit quality, and soil nutrient levels and movement in flatwoods-type soils.

PUB. NO.: SJ94-SP10

By: R. Stamps

Title:
Evapotranspiration and nitrogen leaching during leatherleaf fern production in shadehouses

A geographic information system computer database was created containing the locations of each soil type in the main leatherleaf fern-producing counties (Lake, Putnam, Volusia) in Florida to determine the range of water-holding and nitrogen-leaching characteristics for the soils on which leatherleaf fern was being produced.

PUB. NO.: SJ94-SP11

By: St. Johns River Water Management District

Title:
Index of hydrologic stations: October 1993

This report presents a compilation of data collected from all stations by the St. Johns River Water Management District as of the end of October 1993. These stations represent sites where rainfall, groundwater level, surface water level, lake stage, surface water discharge, groundwater quality, or spring water quality data are collected either electronically or manually.

PUB. NO.: SJ94-SP12

By: Author(s) not listed

Title:
St. Johns River, Florida: Water quality feasibility study: Phase I interim report, vol. I: Executive summary

This study was conducted to assess and quantify water quality-related conditions and to develop evaluation tools for assessing water quality problems of the lower St. Johns River. Volume 1 is an overall executive summary. Subsequent reports present the results of investigations.

PUB. NO.: SJ94-SP13

By: Author(s) not listed

Title:
St. Johns River, Florida: Water quality feasibility study: Phase I interim report, vol. II: Tide control and tidal characteristics

Volume 2 of this study provides specialized analyses of the data collected from tide stations operated on the river during the federal/state cooperative effort in the late 1970s, for stations occupied more recently for National Ocean Service hydrographic surveys, and for a long-term historical dataset from the Long Branch, USE-DDP station in Jacksonville.

PUB. NO.: SJ94-SP14

By: Author(s) not listed

Title:
St. Johns River, Florida water quality feasibility study: Phase I interim report, vol. III: Vertical/horizontal control surveys and water measurement station

Volume 3 of this study was prepared to assist staff in decision making in use of existing control points or performing extension surveys of the geodetic networks. The manual is designed for the scientist or engineer responsible for hydrology studies of the lower St. Johns River and its tributaries.

PUB. NO.: SJ94-SP16

By: Author(s) not listed

Title:
St. Johns River, Florida: Water quality feasibility study:Phase I interim report, vol. V: A review of sediment analysis, management techniques, and sediment quality data for the Lower St. Johns River Basin

Volume 5 of this study was prepared to provide a better understanding of sediment properties and dynamics and to document their importance in environmental degradation, to identify problems and data needs, and to develop guidelines for establishment of future detailed studies and management procedures.

PUB. NO.: SJ94-SP17

By: Author(s) not listed

Title:
St. Johns River, Florida: Water quality feasibility study: Phase I interim report, vol. VI: review and evaluation of hydrodynamic modeling for the lower St. Johns River estuary and review of water quality monitoring and recommendations for water quality modeling of the lower St. Johns River

Volume 6 of this study documents reviews of state-of-the-art hydrodynamic/salinity modeling of estuaries. An approach for developing a system of models and monitoring programs for the lower St. Johns River estuary is recommended.

PUB. NO.: SJ94-SP18

By: Author(s) not listed

Title:
St. Johns River, Florida: Water quality feasibility study: Phase I interim report, vol. VII: Summary of workshop

Volume 7 of this study is an overview of the workshop held asthe final task: “A Lower St. Johns River Workshop — Sediments, Hydrodynamics, Water Quality, and Related Issues.”

1993

PUB. NO.: SJ93-SP1

By: CEES-Blackhawk Geosciences Division

Title:
Time domain electromagnetic soundings: St. Johns River Water Management District in northeast Florida, July 1992

This report covers the data acquisition, processing, interpretation, and results of a time domain electromagnetic survey performed at 17 sites in the St. Johns River Water Management District and one site in southeast Georgia.

PUB. NO.: SJ93-SP2

By: CEES-Blackhawk Geosciences Division

Title:
Updated time domain electromagnetic survey data: Seminole County, Florida

This report covers the integration of time domain electromagnetic soundings, made in Seminole County, Florida, during July 1992 to update depth contour maps of the 5,000-milligrams per liter (mg/L) and 250-mg/L isochlors previously constructed for the St. Johns River Water Management District.

PUB. NO.: SJ93-SP3

By: K. Clough, G. Best, and S. Schmid

Title:
Hydrology, plant community structure and nutrient dynamics of Hopkins Prairie, Ocala National Forest, Florida: May 1990-December 1991: Final report

This study examines the effects of water level fluctuations on above- and below-ground plant community structure and soil and plant tissue nutrients at Hopkins Prairie, a wet prairie in the Ocala National Forest, Fla.

PUB. NO.: SJ93-SP4

By: T. Blandford and T. Birdie

Title:
Groundwater flow and solute transport modeling study for eastern Orange County, Florida, and adjoining regions

The primary purpose of this study was to provide the means for regional analysis of groundwater resources in eastern Orange County to guide planning and management efforts, with major emphasis on the Floridan aquifer system.

PUB. NO.: SJ93-SP5

By: L. Duever, S. Baird, and D. Heuberger

Title:
Nassau River and Lower St. Johns River basins land acquisition study: Final report

The purpose of this study was to assess the possibility of buying land in the Nassau River and Lower St. Johns River basins as a means of protecting lands of high hydrologic and ecological value. KBN developed a ranking system, then ranked based on its value for protecting water resources.

PUB. NO.: SJ93-SP6

By: M. Wanielista, R. Eaglin, R. Bennett, and S. Underwood

Title:
Econlockhatchee hydrologic balance: Maintaining the balance

In April 1990, the St. Johns River Water Management District Governing Board directed staff to begin rulemaking to develop Econlockhatchee Basin-specific stormwater management rule criteria consistent with River Task Force recommendations. From these recommendations, two (II.B and II.E) specifically address water quantity/quality issues and require an estimate of the overall water budget for the entire basin.

PUB. NO.: SJ93-SP7

By: KBN Engineering and Applied Sciences, Inc.

Title:
A wetland management strategy for the St. Marys River Basin

KBN Engineering and Applied Sciences developed a wetlands management strategy for the St. Marys River Basin to provide background information about the physical and biological character of the region, examine existing regulatory and management programs in place, assess land use trends, and propose recommendations for more effective long-term management.

PUB. NO.: SJ93-SP8

By: M. Brown and R. Tighe

Title:
Vegetation composition and cover at Sunnyhill Farm

The purpose of this vegetation study was to document natural recruitment and successional patterns over the Sunnyhill Farm site and relate environmental variables with vegetation and succession.

PUB. NO.: SJ93-SP9

By: A. Fox, W. Haller, J. Joyce, W. Dunn, and R. Yorton

Title:
Assessment of the potential for hydrilla verticillata to affect the use of Lake Washington as a potable water supply source

This report documents the evaluation of the impact of hydrilla on the water supply potential of Lake Washington. Hydrilla verticillata is the most troublesome aquatic weed in the St. Johns River Water Management District in terms of acres of surface water infested, rate of expansion, environmental and economic impacts, and financial resources necessary to manage this exotic aquatic weed at the city of Melbourne’s water supply source, Lake Washington.

PUB. NO.: SJ93-SP10

By: Professional Service Industries, Inc., Jammal and Associates Division

Title:
Full-scale hydrologic monitoring of stormwater retention ponds and recommended hydro-geotechnical design methodologies: Indian River Lagoon Basin, St. Johns River Water Management District: Volume 1

Water management districts require that new developments have a comprehensive stormwater management system to ensure that stormwater runoff is being effectively treated. The focus of this study is on retention systems. Field data were used to evaluate and recommend hydrogeologic characterization techniques and design methodologies for computing the time of percolation of impounded stormwater runoff.

PUB. NO.: SJ93-SP11

By: Continental Shelf Associates, Inc.

Title:
Fish assemblages inhabiting an oligohaline segment of the lower St. Johns River, Florida

A pilot program was initiated to determine the usefulness of an Index of Biological Integrity (IBI) in the lower St. Johns River. The IBI is a numerical index, based on numbers and varieties of fish present in an area, employed as a biological complement to chemistry measurements for assessing water quality.

PUB. NO.: SJ93-SP12

By: H. Harper and J. Herr

Title:
Treatment efficiencies of detention with filtration systems: Final report

Field and laboratory investigations were conducted in DeBary, Florida, to evaluate the hydraulic and water quality characteristics of a detention pond with filtration system. Pilot scale experiments were conducted to evaluate the effects of filer media, filter configurations, and sod cover on hydraulic performance and pollutant attenuation of filter systems.

PUB. NO.: SJ93-SP13

By: L. Morris and D. Tomasko

Title:
Proceedings and conclusions of workshops on submerged aquatic vegetation initiative and photosynthetically active radiation

The proceedings of a 1992 workshop are incorporated into this publication, outlining consensus on how to maintain and enhance critical submerged aquatic vegetation in the Indian River Lagoon system.

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