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Trinity River Authority of Texas
Denton County, TX
Using the Water Quality Analysis Simulation Program (WASP), Plummer developed and calibrated a water quality model of Grapevine Lake. As a first step in developing the model, we acquired and managed historical water quality data from several sources, including rainfall, evaporation, reservoir water surface elevation, and nutrient, BOD, dissolved oxygen, and chlorophyll-a concentrations. Then, we analyzed lake bathymetry, created model segments, and constructed the WASP model. During model calibration, we identified relationships between the water quality data and biological and chemical processes operating in the lake. Finally, we used the model to assess eutrophication trends, investigate the potential impacts of wastewater discharges and urban development, and develop recommendations for future management strategies.
A client operates an ongoing Watershed Protection Program (WPP) to protect its water supply. Plummer assisted in developing and incorporating a spill response plan into the WPP.
Plummer updated the TCEQ’s regulatory model for the Upper Trinity River to a newer version and incorporated revised background flows.
Using the EPA’s Water Quality Assessment Simulation Program (WASP), Plummer developed an advanced water quality model of Lewisville Lake to support a TPDES permit renewal for the Lakeview Regional Water Reclamation Plant.
Plummer developed a CE-QUAL-W2 model of Lavon Lake to evaluate impacts on dissolved oxygen, nutrients and chlorophyll-a levels in the lake.
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