| SUMMARY
OF DOI RESPONSIBILITIES AND SCIENCE NEEDS RELATED TO WATER PROJECTS IN EVERGLADES
NATIONAL PARK, BISCAYNE BAY, AND THE FLORIDA KEYS
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| Major DOI Responsibilities and Interests
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Major Unanswered Questions
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Needed Science
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Timeline
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| Help ensure that hydrologic performance
targets accurately reflect the natural predrainage hydrology and ecology (DOI
CERP partnership responsibility)
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Water Conservation Area 3
Decompartmentalization and Sheetflow Enhancement
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What were the physical and ecological conditions
in the Greater Everglades prior to drainage and modification, including
- Current and historic hydrologic, geologic,
ecological, and water quality conditions
- physical, chemical, and biological processes
responsible for development and persistence of soils and geomorphological
patterns in the historical Everglades landscape
What are the
hydrologic targets needed to mimic historic flows, including water depths,
timing, and distribution?
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Additional research to understand the linkages
among the geologic, hydrologic, chemical, climatologically, and biological
processes that shaped the predrainage Everglades
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NEPA
Scoping
Phase
1: TBD
Phase
2: 2010
(NOTE - schedule under revision)
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| Combined Structural and Operational Plan (CSOP),
Including the C-111 Spreader Canal
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| What are the operating protocols needed to
mimic natural flows through Everglades National Park?
What impact will increased freshwater flows
have on coastal communities?
What water quality
hazards are associated with using water derived from agricultural basins to
augment flows into natural areas?
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Research and possible model refinement to
support the refinement of hydrologic targets and operating protocols
Information on evapotranspiration (ET) and how
it is regulated in the Greater Everglades is necessary to determine overall
hydrologic budgets and to predict how hydrologic changes will affect the
natural systems.
Modeling to predict salinity in the mangrove
community and northeast Florida Bay
Environmental risk assessments of water
quality contaminants
|
NEPA Scoping
CSOP
March
2004
C-111 Spreader Canal
August
2004
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| Biscayne Bay Coastal
Wetlands
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| How much freshwater, and in what seasonal
patterns, was delivered historically to Biscayne Bay?
What are the water quality performance targets
for estuarine systems?
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Additional research to understand predrainage
hydrology
Biscayne Bay
hydrologic model
Research to
determine the sensitivity of marine organisms and potential -biomagnification
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NEPA Scoping
June
2006
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| Additional Water for
Everglades National Park and Biscayne Bay Feasibility Study
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| The science needs listed above under Water
Conservation Area 3 Decompartmentalization and Sheetflow Enhancement and
Combined Structural and Operational Plan (CSOP), Including the C111 Spreader
Canal also meet needs for this project. Therefore any unanswered questions
would have to be timed to meet the needs of the first of these 3 projects
that come on line. (reference the 2 project above).
What were the physical and ecological conditions
in Shark River and Taylor Sloughs and Biscayne Bay prior to drainage and
modification, including
- historic hydrologic, geologic, ecological, and water
quality conditions
- physical, chemical, and biological processes
responsible for development and persistence of soils and geomorphological
patterns in the historic landscape
- what were the historic salinity patterns in Biscayne Bay
What are the hydrologic targets needed to
mimic historic flows, including water depths, timing, and distribution, in
the Everglades and the Biscayne Bay coastal wetlands?
How will natural flows in Taylor Slough change
the quantity, quality, timing, and distribution of flows into Barnes and Card
Sounds?
How much additional water is needed to mimic
the predrainage hydrology in Everglades and Biscayne Bay National Parks?
What are the water
quality hazards and how can they be avoided?
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Analysis of historic conditions in Everglades
National Park and southern Biscayne Bay
Environmental risk
assessment of water quality contaminants
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NEPA Scoping
TBD
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| Wastewater Reuse Pilot
Project
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| What constituents of wastewater pose a
potentially significant risk to the ecosystems in which they are introduced?
What is the risk
of these constituents to downstream ecosystems?
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Environmental risk assessments of water
quality contaminants
Criteria for site selection of pilot.
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NEPA Scoping
TBD
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| Florida Bay and Florida Keys
Feasibility Study
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| What are the links between the impediment to
circulation created by the causeway and the ecology of Florida Bay, and
particularly the coral reefs that have grown up around the causeway?
What are the water quality hazards associated
with wastewater disposal in the bay and how can they be avoided?
What are the sources of nitrogen to Florida
Bay and what are the impacts of elevated nitrogen levels?
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Models to
simulate how restoration projects will alter the hydrology of Florida Bay
Water
quality studies
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NEPA Scoping
Completed
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| Major DOI Responsibilities and Interests
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Major Unanswered Questions
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Needed Science
|
Timeline
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| Help ensure that hydrologic performance
targets protect threatened and endangered species and promote fish, wildlife,
and park values (consultations on project design related to DOI stewardship
responsibilities) |
Water Conservation Area 3
Decompartmentalization and Sheetflow Enhancement
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| How are hydrologic changes expected to affect
tree islands, ridge and slough habitats, and marl prairies?
What are the effects of hydrologic barriers on
nutrient cycling and transport, and on the movement of invasive and exotic
species?
How will hydrologic changes affect the variety
of wildlife species that depend on the Everglades marshes?
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Research to understand the critical factors
for sustaining tree islands, ridge and slough habitats, and marl prairies
Methods to evaluate sheetflow patterns and
volumes are necessary in ridge and slough communities and near tree islands
in areas likely to be impacted by restoration projects.
Research to understand and reduce the effects
of hydrologic barriers on ecological connectivity
Research to understand and reduce the effects
of roads, levees, and canals on the spread of exotic species
Additional research to understand the effects
of different hydrologic regimes and ecological processes on restoring and
maintaining ecosystem composition and function.
Process-level investigations on the mechanisms
controlling the interaction between biological and hydrological indicators
are necessary.
Identification of
current stressors that are affecting the system
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EIS
Review, Section 7 Consultation, and CAR
Phase 1
Draft: TBD
Final: TBD
Phase 2:-TBD (Schedule under revision)
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| Combined Structural and
Operational Plan (CSOP), Including the C111 Spreader Canal
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| For a given set of hydrologic targets for the
CSOP, what floral and faunal responses can be expected? How close are they to
the predrainage ecology?
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Improvement of ecological models to make them
more suitable for application and analysis
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EIS Review, Section 7 Consultation, and CAR
CSOP
Draft: December 2006
Final: July 2007
C-111 Spreader Canal
Draft: July 2006
Final Feb 2007
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| Biscayne Bay Coastal
Wetlands
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| What are the links between hydrology and
ecology in the Biscayne Bay coastal wetlands?
What are the critical factors that contribute
to suitable habitat for manatees, crocodiles, smalltooth sawfish, sea
turtles, wood storks, bald eagles, and eastern indigo snakes?
How will the project alternatives affect
habitat for threatened and endangered species?
What is the "pollution clearing" capacity of
the wetlands and what is the potential for biomagnification
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Additional research to understand the links
between hydrology, coastal salinity, and ecology
Research of critical habitat factors for
threatened and endangered species
Research to determine the clearing and saturation
capacities of sawgrass and mangrove habitats
|
EIS Review, Section 7 Consultation, and CAR
Draft: Dec 2005
Final: May
2006
|
| Additional Water for
Everglades National Park and Biscayne Bay Feasibility Study
|
| The science needs listed above under Water
Conservation Area 3 Decompartmentalization and Sheetflow Enhancement and
Combined Structural and Operational Plan (CSOP), Including the C111 Spreader
Canal also meet needs for this project. Therefore any unanswered questions would have to be timed to meet the
needs of the first of these 3 projects that come on line. (reference the 2
project above).
|
|
TBD
|
| Wastewater Reuse Pilot
Project
|
| What are the effects of Waste Water Reuse on fish
and wildlife? |
An inventory of Waste Water Reuse constituents
and their biotic tolerances
|
|
| Florida Bay and Florida Keys
Feasibility Study
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| What are the links between freshwater inflows
to Florida Bay and the ecology of the bay?
What are the links between the impediment to
circulation created by the causeway and the coral reefs that have grown up
around the causeway?
Will the increased flow of fresh water flowing
through the Everglades into Florida Bay have any measurable chemical effect
on off shore waters?
|
Modeling
of ecological responses to hydrologic change. Indicator groups that should be
represented in these evaluations include
- coral reef
species
- estuarine fish
(coastal marshes and streams)
- wading birds
(e.g., spoonbills, egrets),
- marine fish (e.g.
spotted sea trout, mangrove snapper)
- submerged aquatic
vegetation (sea grasses)
- mangrove forest
species
- federally listed
species (American crocodiles)
Dilution studies combined with hydrodynamic models for
Florida Bay that extend onto the offshore platform
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EIS Review, Section 7 Consultation, and CAR
Draft : July 2008
Final: March
2009
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| Major DOI Responsibilities and Interests
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Major Unanswered Questions
|
Needed Science
|
Timeline
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| Assess the responses of ecological communities
and species as a basis for adaptive management (continuation of DOI
responsibilities outlined above)
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Water Conservation Area 3
Decompartmentalization and Sheetflow Enhancement
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| What are the effects of hydrologic changes on
the Everglades natural system?
|
Baseline studies and monitoring:
MAP components:
- plant community species composition, cover, and
density in marl prairie and ridge and slough habitats in the southern
Everglades
- wading bird nesting colony location, size, and timing
in freshwater marshes
- American alligator population recovery and the role
of alligator holes as aquatic refugia in major Everglades slough habitats
- fish and invertebrate sampling studies
- wood stork nesting and population monitoring
- American crocodile population monitoring
- habitat conditions on tree islands and conditions for
restoration of historic tree island distribution and abundance
Additional DOI monitoring needs:
- species composition, cover, and density in tree
islands
- eastern indigo snakes
- West Indian manatee use of canals
- migratory bird occurrence and abundance
- exotic fish species
- snail kite habitat condition, nesting, and
productivity
- Cape Sable seaside sparrow population monitoring
- wood stork habitat use, productivity, and survival
- processes affecting soil accretion, tree island
restoration, and maintenance of the ridge and slough landscape pattern
- response of coastal communities to simultaneous
effects of increased freshwater flows and sea-level rise
- Vegetation community monitoring in Taylor Slough and
the Rocky Glades
- Freshwater marsh fish and invertebrate monitoring in
the southern Everglades
- Mangrove landbirds
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Post-implementation monitoring and assessment
Phase 1 Completion: October 2010
Phase 2
Completion: April 2015
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| Combined Structural and
Operational Plan (CSOP), Including the C111 Spreader Canal
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| Is the CSOP achieving the anticipated results?
What are the effects on the Cape Sable seaside
sparrow and Everglade snail kite?
How will alterations in water deliveries
through the C-111 and Model Lands affect the macro and micro biotic
communities in Barnes and Card Sounds?
|
Development of methodology to quantify ecological
connectivity especially across major potential barriers of flow such as
Tamiami Trail and Alligator Alley
Monitoring of ecological communities and
threatened and endangered species:
- vegetation, periphyton, and aquatic communities in
the vicinity of the proposed C-111 buffers
- Everglade snail kite
- Cape Sable seaside sparrow
Detailed community descriptions for Barnes And Card Sounds
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Post-implementation monitoring and assessment
CSOP
Project Completion: February 2008
C-111 Spreader Canal
Project
Completion: March 2009
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| Biscayne Bay Coastal
Wetlands
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| What are the key indicators of a natural
ecological response in the Biscayne Bay coastal wetlands?
What are the baseline conditions of the
indicators?
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Baseline ecological data:
- vegetation coverage
- West Indian manatee
- American crocodile
- roseate spoonbill
|
Post-implementation monitoring and assessment
Project
Completion: December 2015
|
| Additional Water for
Everglades National Park and Biscayne Bay Feasibility Study
|
| Refer to the questions and science needs
listed above under Water Conservation Area 3 Decompartmentalization and
Sheetflow Enhancement and Combined Structural and Operational Plan (CSOP),
Including the C111 Spreader Canal
|
|
|
| Wastewater Reuse Pilot
Project
|
| What concentrations of known and EPOC's start
to affect the primary trophic levels of marine and estuarine communities
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Research to document the sensitivity of marine
organisms and quantify the potential magnitude of biomagnifications that
might occur in juvenile and nursery habitats |
|
| Florida Bay and Florida Keys
Feasibility Study
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| What is the ecological response to hydrologic
change?
|
Monitoring to assess ecological responses to
hydrologic change:
- estuarine fish (coastal marshes and streams)
- wading birds (e.g., spoonbills, egrets)
- marine fish (e.g. spotted sea trout, mangrove
snapper)
- submerged aquatic vegetation (sea grasses)
- mangrove forest species
- federally listed species (American crocodiles)
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Post-implementation monitoring and assessment
Project
completion: TBD
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