New Waves January 2009

Breaking news about water resources research and education in Texas

New Publications/Papers

Bacteria Total Maximum Daily Load Task Force Final Report, C. A. Jones, K. Wagner, G. Di Giovanni, L. Hauck, J. Mott, H. Rifai, R. Srinivasan, G. Ward, Texas Water Resources Institute Report TR-341, 2009 A Task Force report describes the characteristics, strengths, and weaknesses of several models that have been used and/or are under development to assist bacteria TMDL and I-Plan analysis, and further recommends a three-tier approach to implementing bacteria TMDLs and I-Plans.

Extending and Condensing the Brazos River Basin Water Availability Model, R. Wurbs, T. Kim, Texas Water Resources Institute Report TR-340, 2008 This report documents an investigation that consisted of developing, testing, and applying procedures for extending WAM hydrology datasets to cover a longer period-of-analysis and condensing WAM water right datasets to focus on a particular water management system while reflecting the effects of all other water rights in the stream flow inflows.

Goal Seek Pamphlet II for VIDRA© – HCID#1 (version 2.6 / December 18, 2008), A. Sturdivant, M. Rister, R. Lacewell, C. Rogers, Texas Water Resources Institute Report TR-339, 2008 VIDRA© (Valley Irrigation District Rate Analyzer) is a work-in-process and is being developed with collaboration from Hidalgo County Irrigation District No. 1 and other Lower Rio Grande Valley irrigation districts. The primary function of VIDRA© is to provide an irrigation district a means of ‘what-if’ analysis for an upcoming year’s potential estimated financial data with simultaneous changes in rates, expenses, or other water-delivery related parameters for the irrigation district.

Effects of Brush Management on Water Resources, C. A. Jones and L. Gregory, Texas Water Resources Institute Report TR-338, 2008 For several decades, land managers have cleared brush species, such as mesquite and juniper (cedar), and observed increases in spring and stream flows. Scientists have also conducted numerous studies in which they have measured the effects of brush removal on different aspects of rangeland hydrology.

Priority Groundwater Management Areas: Overview and Frequently Asked Questions, Valeen Silvy, Bruce J. Lesikar, Russell A. Persyn, Texas AgriLife Extension Service publication, B-6191, Reprint November 7, 2008 Water shortages and water quality problems in Texas are prompting the state to address the security of its water supplies. One approach being taken is to create priority groundwater management areas (PGMAs) in critical regions. This publication explains the process for creating a PGMA in Texas.

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