Housatonic River PCB Study (MA, USA)

Services Rendered: EPA Peer Review EFDC Hydrodynamic Modeling EFDC Sediment Transport Modeling HEC-6 Sediment Transport Modeling HSPF Watershed Modeling PCB Fate and Transport Modeling Code Testing and Revision Development of Modeling Tools Sophisticated Data Analysis Sediment Stability Study Bank Erosion/Stability For decades, PCBs had been released onto the soil near and into the Housatonic River…

Evaluating Forced Evaporation with Comparisons to EPRI and USGS Approaches (AL, USA)

Services Rendered: EFDC Hydrodynamic Model Environmental Impacts Thermal modeling Client: Alabama Power Company Contact: Jon Ponstein Dates of Performance: Ongoing (2015) Electricity production accounts for one of the largest water usages in the United States and worldwide. Water for thermoelectric power is used in generating electricity with steam-driven turbine generators. Surface water was the source…

Real-time Thermal Hydrodynamic Model Decision Support Tool (AL, USA)

Services Rendered: EFDC Hydrodynamic Model Environmental Impacts Real-time Modeling Technical Training Client: Alabama Power Company Contact: Jon Ponstein Dates of Performance: Ongoing (2015) DSI developed a real-time three dimensional hydrothermal model for Coosa River, AL, between Logan Martin Dam and Lay Dam using Environmental Fluid Dynamics Code (EFDC) and pre/post processor EFDC_Explorer (EE). The model’s…

North Saskatchewan River WQ Modeling Report (Canada)

Services Rendered: EFDC Hydrodynamic Model Sediment Transport Study Water Quality Modeling Environmental Impacts Technical Training Client: Alberta Environment & Water, Canada Contact: Robert Magai Environment and Sustainable Resource Development, AEW Dates of Performance: Completed DSI provided calibration support to Alberta Environment and Sustainable Resource Development (ESRD) for the North Saskatchewan River (NSR) water quality model…

COE Barkely Reservoir CE-QUAL-W2 Hydrodynamic and Water Quality Model (TN, USA)

Services Rendered: Water Quality Modeling Hydrodynamic Modeling DSI developed and calibrated a CE-QUAL-W2 hydrodynamic and water quality model of Barkley Reservoir on the Cumberland River. Verified the calibrated model and used it to predict the effects on water quality of proposed changes in reservoir operations. The calibrated model has been used to evaluate impacts of…

FDEP Klosterman Bayou, Model Development, Watershed and WQ Modeling (FL, USA)

Services Rendered: TMDL Model Development TMDL Support EFDC 3D Water Quality Model HSPF/EFDC Linkage Waste Load Allocations A watershed pollutant loading model and a receiving water quality/ hydrodynamic model for dissolved oxygen and nutrients were setup, calibrated, and validated. These models were used to develop TMDLs for the tidally influenced and impaired segment of Klosterman…

Tenkiller Ferry Lake WQ Study (OK/IL, USA)

Client Oklahoma Department of Environmental Quality and UnitedStates Environmental Protection Agency Project From 2004 – To 2018 The final report was submitted to USEPA to support TMDL development. Services TMDL Water Quality Assessment Watershed Modeling Hydrodynamic Modeling Water Quality Modeling and Waste Load Allocation Key Staff Paul Craig, P.E. [email protected] Anurag Mishra, Ph.D, PE [email protected]

S65a Scour Investigation (FL, USA)

Services Rendered: Sediment Stability Study ADCP Data Collection ADCP Data Analysis Discharge and Velocity Profiles ADCP Sediment Discharge As a result of active 2004 and 2005 hurricane seasons, many SFWMD canals experienced bank and bed erosion. The erosion was more severe downstream of flow control structures, particularly spillways and weirs. Erosion on the discharge canal…