New Waves October 2011

Breaking news about water resources research and education in Texas

New Publications/Papers and Training Courses

Evaluating the Economics of Best Management Practices for Tarrant Regional Water District's Eagle Mountain Lake Watershed, J.L. Johnson, Texas Water Resources Institute, TR-407, 2011.

The objective of this assessment was to identify the most cost-effective means of reducing (and/or preventing) total phosphorus (TP) inflows into the Eagle Mountain Lake from a comprehensive set of Best Management Practices (BMPs). Additionally, the reduced total nitrogen (TN), and sediment inflows resulting from adoption of these BMPs was also calculated. To achieve the desired water quality improvements, management consulting engineers indicated that the collective assortment of BMPs needed to reduce TP inflows by approximately 30 percent below current levels. During 2009-2011, Texas AgriLife Extension Service and Texas AgriLife Research scientists, in conjunction with Tarrant Regional Water District (TRWD) managers, NRCS professionals, and others worked to identify a portfolio of BMPs capable of contributing to such reductions. The economics component of this project consisted of integrating the simulation modeled results of nutrient and sediment inflow dynamics with the associated costs of BMP implementation. This BMP cost analysis provides a basis for the evaluation of a suite of BMPs that could be expected to result in meaningful TP inflow reduction. The final task was to identify the cost-effective combination of BMPs that could be expected to achieve the management target of a 30 percent reduction in TP inflow into the Eagle Mountain Lake over a 50-year project period.

Soil & Water Assessment Tool Theoretical Documentation Version 2009, S.L. Neitsch, J.G. Arnold, J.R. Kiniry, J.R. Williams, Texas Water Resources Institute, TR-406, 2011.

Provide Assistance to Improve Water Quality in Hood County Final Report, B. Lesikar, J. Mechell, B. Clayton, R. Gerlich, D. Kalisek, B.L. Harris, Texas Water Resources Institute, TR-404, 2011.

The overall goal for this project was to provide a mechanism to educate local stakeholders about water quality issues that affect Lake Granbury. This project provided an assessment of existing and potential water quality threats related to on-going non-point source (NPS) water pollution within the Lake Granbury Watershed. The Texas Water Resources Institute (TWRI) and Texas AgriLife Extension Service assisted the Brazos River Authority (BRA) and Texas Commission on Environmental Quality (TCEQ) to develop a Watershed Protection Plan (WPP) aimed to improve and protect water quality within the Brazos River Basin. Educational information developed during this project provided Federal, State and local decision makers with a variety of mechanisms that can be employed to prevent additional degradation of water quality in the watershed.

TWRI Water Resources Training Courses

ArcGIS Desktop II: Tools and Functionality Nov. 8–10
Texas Watershed Planning Short Course Nov. 14–18
SWAT for Beginners Dec. 5–6
Advanced Data Processing for ArcSWAT Dec. 7
SWAT for Advanced Users Dec. 8–9
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