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SUSTAINABLE WATER MANAGEMENT PROJECT OVERVIEW
ACF STAKEHOLDERSa diverse group representing sectors in all three
states – working together for the first time to achieve a common goal
achieve equitable water-sharing solutions among stakeholders that balance economic, ecological and social values, while ensuring sustainability for current and future generations. After developing a strong organizational
infrastructure and completing a forward-thinking strategic planning process, ACFS is now ready to move forward with the critical next steps, centered around developing a Sustainable Water Management Plan for the Basin.
Through scientific modeling and a shared vision process, ACFS will work to achieve a sustainable solution that works for everyone in the ACF Basin.
ACF BASIN
WHAT IS THE SWMP?Sustainable Water Management Plan
Use of hydrologic modeling of the ACF basin to allow informed decision making
Includes an evaluation of Apalachicola Bay
2011 consensus on a science based approach
Developed specifications and executed RFQ Process
Initiated fundraising campaign Chose contractors and started fall 2011
PROJECT HISTORY
16 March 2011
PROJECT TEAM
Gail Bingham
RESOLVE
TOCWG
FUNDINGInternal contributions
Grants
Task
1:
Work
Pla
n
Task 6: SWMP Model Runs
Sub-Task 6.1: Baseline/Current Conditions Model Runs
Sub-Task 6.2: Model Runs to Evaluate WMA’s
Task 4: Model Inputs – Unimpaired Flows Dataset and Water Balance
Task 3: Model Development
Task 5: Water Management AlternativesTask 5: Water Management Alternatives
Task 2: Performance Metrics: Evaluate Model Results Tasks 7 & 8: Develop
consensus on SWMP
In-stream Flow Analysis
In-stream Flow Analysis
Modeling performed by GWRI Scenarios are be performed using
both ResSim and ACF-DSS.
16 March 2011
Modeling
PERFORMANCE METRICS
Desired lake levelsNavigation windowsEnvironmental flows Flows needed for industry or thermal power
PERFORMANCE METRICS EXAMPLES
NODE Water Supply
ENVIRONMENTAL RECREATION NAVIGATION
Lake Lanier % time ramp rate < .5 ft per day Apr-Jun
% time < 1061 ft
NA
Columbus % time 7-day avg < 1850cfs
% time daily avg < 1350 cfs
% time 7-day avg < 1850cfs
NA
Bainbridge None specified
% time flow is < 15% of UIF avg daily flow
% time > 900 cfs
Jan-May 9 ft channel
Sumatra NA Hi, med,low flow hydrographs
Covered by navigation
Jan-May 9ft channel
ENVIRONMENTAL METRICSPerformed Instream Flow AnalysisUtilized USFWS informationUtilized river keeper’s judgment
HABITAT-BASED APPROACH
Unimpaired inflow (UIF) series represent the natural inflows that would occur if no human development were present
Using latest USACE UIF
UNIMPAIRED FLOWS
WATER BALANCE
1. Water Withdrawals – Tabulation of existing and growth based (future) water users in the basin; includes municipal, industrial, agricultural, and thermoelectric users
2. Water Returns – Tabulation of existing and future returns from municipal and industrial NPDES permit holders
Withdrawals
Returns
Net Consumption = Net Consumption = SSWithdrawals - Withdrawals - SSReturnsReturns
Utilized a panel of experts to review to receive briefing.
Stakeholder meetings to develop WMAs Screening process of WMAs during iterative
model runs.
WATER MANAGEMENT ALTERNATIVES PROCESS
Potential changes to RIOPInterbasin transfersMunicipal conservationAdditional storageAgricultural conservation/limits
WMA EXAMPLES
Baseline runs
Alternative WMA Scenarios (iterative)
MODELING SCENARIO PROGRESSION
19
BASELINE RUNSNo reservoirs, no controls, no consumptionReservoirs with run of river, no consumptionReservoirs with UASCE controls, no
consumptionCurrent conditions including net consumption
FIRST ITERATION RUNSChange consumption in range of +/- 30%Drop all IBT’sRaise Lanier by 2 ft
SECOND ITERATION RUNSTo focus on insights from round one and changes to RIOP
APALACHICOLA BAY IMPACT
Running hydrodynamic bay model to evaluate saline changes
Performing an ecological evaluation of impact to oysters based on salinity changes
2. Problem Definition/Performance Indicators
1. Work Plan
8. Report and Study Dissemination
3. Tailoring of Models to Indicators (ACF-DSS and ResSim)
NOVNOV DECDEC JANJAN FEBFEB MARMAR APRAPR MAYMAY JUNJUN JULJUL AUGAUG SEPSEP OCTOCT NOVNOV DECDEC
4. Data and Information
5. Development of Water Management Alternatives
6. Conduct Iterative Basin Assessments
7. Seek Consensus
OVERALL SUSTAINABLE WATER MANAGEMENT PLAN TASKSOVERALL SUSTAINABLE WATER MANAGEMENT PLAN TASKS
JANJAN FEBFEB
Where are we now?
REPORT DISSEMINATION
25
ACFS WILL CARRY
RECOMMENDATIONS
TO STATES AND
USACE
ANY QUESTIONS ?