TMDL Modeling Toolbox TMDL Modeling Toolbox WAM - Flow and Nutrient Load WAM - Flow and Nutrient Load Modeling Tool for TMDL Modeling Tool for TMDL Development Development Del Bottcher, Ph.D., P.E. Del Bottcher, Ph.D., P.E. Barry Jacobson, Ph.D., P.E. Barry Jacobson, Ph.D., P.E. Soil & Water Engineering Technology, Soil & Water Engineering Technology, Inc. Inc. Jeff Hiscock Jeff Hiscock JGH Engineering JGH Engineering
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TMDL Modeling Toolbox WAM - Flow and Nutrient Load Modeling Tool for TMDL Development Del Bottcher, Ph.D., P.E. Barry Jacobson, Ph.D., P.E. Soil & Water.
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TMDL Modeling ToolboxTMDL Modeling Toolbox
WAM - Flow and Nutrient Load WAM - Flow and Nutrient Load Modeling Tool for TMDL Modeling Tool for TMDL
• What is WAM good for?What is WAM good for?• Conceptual DesignConceptual Design• User InterfaceUser Interface• ImplementationsImplementations• Recent & Future EnhancementsRecent & Future Enhancements
What is it good for?What is it good for?• Help develop pollutant load allocations for TMDLsHelp develop pollutant load allocations for TMDLs• Identify “hot spots”Identify “hot spots”• Rank pollution by sources & sub-basinsRank pollution by sources & sub-basins• Assess growth directions and individual Assess growth directions and individual
development projectsdevelopment projects• Assess abatement strategies (BMPs)Assess abatement strategies (BMPs)• Develop STA and RASTA design parametersDevelop STA and RASTA design parameters• Analyze effectiveness of STAs and RASTAsAnalyze effectiveness of STAs and RASTAs
• Florida Department of Environmental ProtectionFlorida Department of Environmental Protection• Natural Resources Conservation ServiceNatural Resources Conservation Service• Department of Agriculture and Consumer ServicesDepartment of Agriculture and Consumer Services• Environmental Protection AgencyEnvironmental Protection Agency• St Johns Water Management DistrictSt Johns Water Management District• Suwannee River Water Management DistrictSuwannee River Water Management District• South Florida Water Management DistrictSouth Florida Water Management District• NIWA – New Zealand National WQ CenterNIWA – New Zealand National WQ Center• Florida Department of Agriculture & Consumer ServicesFlorida Department of Agriculture & Consumer Services
Depression
Overland
Wetland
Stream
Flow Routing
Grid Cell
Basin Outlet
GW
Wetland
(1 ha)
Spatial Definition and Mapping
Detailed Land Use and Soils Interactions
Customized SourceCell Submodels
Individual Reach Routing
Wetland and Depression Handling
How WAM WorksHow WAM WorksHow WAM WorksHow WAM Works
• Verified that model could be used for Verified that model could be used for ungaged basins by use of two gaged ungaged basins by use of two gaged basinsbasins
St. Johns River ApplicationSt. Johns River Application
Farm-Version of WAMFarm-Version of WAMFarm-Version of WAMFarm-Version of WAM
• Generation of Typical FarmsGeneration of Typical Farms• BMPs Build In and Easily ModifiedBMPs Build In and Easily Modified• Rain zones built into unique cellsRain zones built into unique cells• Full erosion/deposition in stream routing - pond/reservoirsFull erosion/deposition in stream routing - pond/reservoirs• Closed basins/depressions handledClosed basins/depressions handled• Vegetative areas in residential/urban simulated separatelyVegetative areas in residential/urban simulated separately• Point Sources with Service AreasPoint Sources with Service Areas• Urban / Agricultural Retention PondsUrban / Agricultural Retention Ponds• Impervious Sediment Buildup/Wash offImpervious Sediment Buildup/Wash off• Shoreline reaches for more precise delivery to rivers/lakes/estuariesShoreline reaches for more precise delivery to rivers/lakes/estuaries• Hydraulic Structures Hydraulic Structures