TMDL Modeling ToolboxTMDL Modeling Toolbox

TMDL Modeling WorkshopTMDL Modeling WorkshopUS EPA – Region 4US EPA – Region 4

Tetra Tech Inc.Tetra Tech Inc.

TMDL Modeling ToolboxTMDL Modeling Toolbox

WelcomeWelcome

• AgendaAgenda

• MaterialsMaterials– Printed Materials– CD ROM

• What to ExpectWhat to Expect– Toolbox Overview– Exposure to Tools– Working Examples

TMDL Modeling ToolboxTMDL Modeling Toolbox

Development TeamDevelopment Team

• Water Resources Database (WRDB)Water Resources Database (WRDB)• Watershed Characterization System (WCS)Watershed Characterization System (WCS)• Loading Simulation Program C (LSPC)Loading Simulation Program C (LSPC)• Environmental Fluid Dynamics Code (EFDC)Environmental Fluid Dynamics Code (EFDC)• Water Quality Analysis Simulation Program Water Quality Analysis Simulation Program

(WASP)(WASP)• Georgia Environmental Protection Division RIV1 Georgia Environmental Protection Division RIV1

(EPD-RIV1)(EPD-RIV1)

TMDL Modeling ToolboxTMDL Modeling Toolbox

Development TeamDevelopment Team

• Stormwater Management Model (SWMM)Stormwater Management Model (SWMM)

• Watershed Assessment Model Watershed Assessment Model (WAMView) (WAMView)

• Stream Water Quality Model (QUAL2K)Stream Water Quality Model (QUAL2K)

• Conservational Channel Evolution and Conservational Channel Evolution and Pollutant Transport System (CONCEPTS) Pollutant Transport System (CONCEPTS)

TMDL Modeling ToolboxTMDL Modeling Toolbox

Where to Find the ToolboxWhere to Find the Toolbox

• EPA ORD has established the Watershed/Water EPA ORD has established the Watershed/Water Quality Modeling Technical Support CenterQuality Modeling Technical Support Center– www.epa.gov/athens/wwqstc

• MissionMission– Technical Support– Tool Distribution– Training– Research into TMDL Development– Access to Technical Experts

TMDL Modeling ToolboxTMDL Modeling Toolbox

BackgroundBackground

• Why a TMDL Toolbox?Why a TMDL Toolbox?– Standardized Tools

• Used by EPA• Used by States• Used by Consultants

– Integrated but separate– Public Domain– Models with Proven Track Record– Training

TMDL Modeling ToolboxTMDL Modeling Toolbox

PresentersPresenters

• Jim Greenfield – EPA Region 4Jim Greenfield – EPA Region 4

• Tim Wool – EPA Region 4Tim Wool – EPA Region 4

• Steven Davie – Tetra Tech, AtlantaSteven Davie – Tetra Tech, Atlanta

• Brian Watson – Tetra Tech, AtlantaBrian Watson – Tetra Tech, Atlanta

• John Riverson – Tetra Tech, FairfaxJohn Riverson – Tetra Tech, Fairfax