Source: UNIVERSITY OF ARKANSAS submitted to NRP
DEVELOPMENT AND EVALUATION OF TMDL PLANNING AND ASSESSMENT TOOLS AND PROCESSES
Sponsoring Institution
National Institute of Food and Agriculture
Project Status
COMPLETE
Funding Source
HATCH
Reporting Frequency
Annual
Accession No.
0191231
Grant No.
(N/A)
Cumulative Award Amt.
(N/A)
Proposal No.
(N/A)
Multistate No.
(N/A)
Project Start Date
Oct 1, 2001
Project End Date
Sep 30, 2008
Grant Year
(N/A)
Program Code
[(N/A)]- (N/A)
Recipient Organization
UNIVERSITY OF ARKANSAS
(N/A)
FAYETTEVILLE,AR 72703
Performing Department
BIOLOGICAL & AGRICULTURAL ENGINEERING
Non Technical Summary
Efforts will focus on evaluation of currently available water quality models for TMDL development, developing new components/models, and collecting new data to facilitate model developments. Also fundamental understanding of processes affecting TMDL recommendation will be stressed.
Animal Health Component
50%
Research Effort Categories
Basic
50%
Applied
50%
Developmental
(N/A)
Classification

Knowledge Area (KA)Subject of Investigation (SOI)Field of Science (FOS)Percent
1120210202010%
1120320202020%
1120399202020%
1330399202050%
Knowledge Area
133 - Pollution Prevention and Mitigation; 112 - Watershed Protection and Management;

Subject Of Investigation
0320 - Watersheds; 0210 - Water resources; 0399 - Watersheds and river basins, general;

Field Of Science
2020 - Engineering;
Goals / Objectives
1. Develop, improve, and evaluate watershed models and other approaches for TMDL development and implementation. 2. Assess potential/likely economic benefits and costs and equity issues associated with TMDL implementation at the watershed and individual landowner scale. 3. Assess the potential ecological benefits/implications of TMDL implementation at watershed level.
Project Methods
Evaluate NPS models for their applicability for TMDL development in agricultural watersheds in Arkansas. Collect and assemble comprehensive databases to facilitate development and evaluation of models used for TMDL development. Perform BMP effectiveness studies applicable to TMDL development. Develop linkages among TMDL implementation and physical, chemical and biological response of waterbodies. Evaluate impact of TMDL implementation on ecological services. Estimate the value of ecological services provided by the aquatic ecosystem. Estimate the impact of pollutant load on those services. Estimate the value of the TMDL in terms of ecological services.

Progress 10/01/01 to 09/30/08

Outputs
OUTPUTS: A modeling project titled "Watershed Response Modeling for 12-digit Hydrologic Unit Code "HUC" in L'Anguille River Watershed" was funded by the Arkansas Natural Resources Commission (ANRC) during 2007-08. The current version of Soil & Water Assessment Tool (SWAT) model and latest spatial data was used to perform watershed modeling for L'Anguille River watershed. The model was calibrated and validated for flow, sediments, and total phosphorus (TP) loadings for the years 2003-2007. Annual and monthly simulated flow, sediment, and TP were compared with measured values at Colt and Palestine monitoring stations. The simulated flow, sediment, and TP were largely found to be satisfactorily close to the observed values based on model performance criteria proposed by Moriasi et al. (2007). The calibrated monthly results for sediment and TP were then used to identify critical 12-digit Hydrologic Unit Code (HUC) subwatersheds. The 12-digit HUC subwatersheds were identified as critical based on the rankings assigned using three approaches. The approaches used were, percentile ranking based on calibrated and validated SWAT model outputs, ranking based on Natural Resources Conservation Service (NRCS) average soil loss value reported for Arkansas, and a Geographic Information System (GIS) based index modeling. These rankings served to identify those subwatersheds that require closer monitoring and follow up actions. The methodology and outcomes of this modeling study were used to educate 45 stakeholders during the recently concluded 2008 ANRC Non Point Source (NPS) Management Program Task Force meeting. PARTICIPANTS: Scientists, Extension Specialists, and graduate students from University of Arkansas-Division of Agriculture,Department of Biological and Agricultural Engineering; in collaboration with research scientists and extension specialists from Purdue University and Oklahoma State University TARGET AUDIENCES: Watershed stakeholders (poultry producers, community leaders, and regional policy makers) and other water resource professionals and volunteers PROJECT MODIFICATIONS: Not relevant to this project.

Impacts
Impact Statements: 1. These projects showcase the utility of high spatial resolution land use/land cover, soils (SSURGO), digital elevation model (DEM), and crop management data in identifying critical subwatersheds at 12-digit HUC level for implementing NPS programs. 2. The quantification of benefits by using various best management practices (BMPs) will help stakeholders in selecting effective practices for reducing NPS loadings in their rivers and streams.

Publications

  • No publications reported this period


Progress 01/01/07 to 12/31/07

Outputs
OUTPUTS: Several projects were completed during 2007 as part of the TMDL Planning Project: The Eucha Basin Decision Support System (DSS), the Arkansas Nonpoint Source Management Plan, and the first stage of the Beaver Water District DSS. The second phase of the Beaver Water District DSS was initiated during late 2007, with the goal of developing land use impact scenarios for the Upper White River in order to better manage water quality in Beaver Lake. Beaver Lake is the principle water supply for Northwest Arkansas, and Beaver Water District serves more than 400,000 people. PARTICIPANTS: Indrajeet Chaubey, Purdue University Brian Haggard, University of Arkansas Robert Morgan, Beaver Water District Kati Magliaccio, University of Florida Dan Storm, Oklahoma State University Mike Smolen, Oklahoma State University Will Focht, Oklahoma State University TARGET AUDIENCES: Public Policy Makers Regulatory Agencies School Children PROJECT MODIFICATIONS: None

Impacts
The outcomes of the projects completed in 2007 include: 1. Education of poultry producers, community leaders, and regional policy makers on the impacts of poultry production in Northwest Arkansas and Northeast Oklahoma. 2. Development of a DSS for educators and policy makers to use in analyzing scenarios for land use management in the Eucha Basin. 3. Developed a framework for analyzing land use scenarios for NPS loads to the Upper White River Basin using complex watershed models. 4. Developed a process for engaging the public in developing and analyzing scenarios in the Upper White River Basin.

Publications

  • Chaubey, I., D. Sahoo, B. Haggard, M. Matlock, and T. Costello. 2007. Nutrient-Retention, Nutrient-Limitation, and Sediment-Nutrient Interactions in a Pasture Dominated Stream. Transactions of the ASABE. 50(1):35-44.
  • Chaubey, I., and M. Matlock. 2007. Teaching Undergraduate Students to Manage Aquatic Ecosystems at the Watershed Level. International Journal of Engineering Education. 23(4) 1957-1959.
  • Migliaccio, K., B. Haggard, I. Chaubey, and M. Matlock. 2007. Water quality monitoring at the War Eagle Creek Watershed, Beaver Reservoir, Arkansas. Transactions of the ASABE. 50(6):2007-2016.
  • Osborn, G. S., D. A. Charbonnet, P. K. Haan, M. D. Matlock. 2007. A Spreadsheet Method for Determining SOD from Simple Field Measurements. Transactions of the ASABE. In Press.
  • Sen, S., B.E. Haggard, I. Chaubey, K.R. Brye, T.A. Costello, and M.D. Matlock. 2006. Preliminary investigation into sediment phosphorus release at Beaver Reservoir, Northwest Arkansas, 2002-3. Water, Air, & Soil Pollution, 179:67-77.
  • Sharpley, A., M. Matlock, L. Heathwaite, and T. Simpson, 2007. Managing agricultural catchments to sustain production and water quality. HANDBOOK OF CATCHMENT MANAGEMENT, Blackwell Publishing, 2008.
  • Rodriguez, A. and M. Matlock. 2008. Measuring Temporal Variability in Algal Nutrient Response in the Lake Waco/Bosque River Watershed. Journal of Biological Engineering. 2:1 (11Jan2008).
  • Ludwig, A., M. D. Matlock, B. Haggard, M. E. Matlock, E. Cummings. 2008. Identification and evaluation of nutrient limitation of periphyton growth in headwater streams in the Pawnee Nation, Oklahoma. Journal of Ecological Engineering. 32(2008):178-186.
  • Charbonnet, D. A., Osborn, G. S., P. K. Haan, M. D. Matlock. 2007. Application and Validation of the Spreadsheet Method for Determining SOD. Transactions of the ASABE. 49(6):2039-2050.


Progress 01/01/06 to 12/31/06

Outputs
Research is ongoing to determine the critical nutrient and organic carbon loading in headwater and midland streams that result in ecological degradation and water quality impairment. Stream samples are being collected in the Illinois and Upper White River basins. Sites are being monitored for sediment oxygen demand, algal growth response, dissolved oxygen diel cycling, and watershed-scale loading. In addition, ecological and chemical processes are being modeled at the watershed level to determine the impact of urban land use on water quality. Geomorphologic processes are being measured (sediment size, stream bed slope, cross-sectional area, etc) to determine the degree of impact to streams from hydrologic regime alteration. These data are being analyzed in the context of watershed management plans and Total Maximum Daily Loads to determine the threshold of impact from these point and nonpoint sources that result in water quality impairment.

Impacts
The impact of the State of Arkansas' decision not to conduct TMDLs is that state municipalities and industries are left to negotiate water quality issues with USEPA and its contractors.

Publications

  • No publications reported this period


Progress 01/01/05 to 12/31/05

Outputs
A decision support system was developed for the Beaver Lake watershed located in northwest Arkansas. The Beaver Lake is a multi-use reservoir and supplies drinking water to more than 300,000 residents in northwest Arkansas. The DSS can be used to make watershed management decisions to protect long term quality of the lake while ensuring economic development in the watershed. In addition, development of two other DSS in Eucha-Spavinaw watershed and in L'Anguille watershed is currently in progress. Help was provided to the Arkansas Natural Resources Commission to perform watershed modeling for identifying `hot spots' for flow, sediment, nutrients and pesticides in priority watersheds. The ANRC is using the modeling results to target implementation of BMPs in the watershed. In addition, the ANRC has also used the modeling results to identify priority watersheds for 2004-2008. Three training sessions for using Soil and Water Assessment Tool (SWAT) model have been have been attended by more than 60 people from various state and local agencies in Arkansas. At least six field days and educational tours of experimental watersheds have been conducted to educate stakeholder on linkages among farm level activities and their impact on watershed scale water quality. More than 300 people have attended the field trips.

Impacts
1. This project is increasing the knowledge concerning the appropriateness of various TMDL development tools for application in agricultural watersheds. 2. The utility of current models used for TMDL development in agricultural watersheds is being improved, and biotic and economic factors are being incorporated into several models that do not currently include them. 3. Methods for modeling key TMDL parameters, including sediments, biological indicators, and dissolved oxygen are being synthesized to aid decision-makers in improving TMDLs. 4. Committee members served in organizational roles and participated in the ASAE 2005 TMDL Conference "Third Conference on Watershed Management to Meet Water Quality Standards and Emerging TMDL (Total Maximum Daily Loads)"

Publications

  • Chaubey, I., and K.L. White. 2005. Influence of hydrologic response unit (HRU) distribution on SWAT model flow and sediment predictions. Proc. Watershed Management to Meet Water Quality Standards and Emerging TMDL. ASAE, St. Joseph, MI. pp. 283-289.
  • Chaubey, I., D. Sahoo, B.E. Haggard, M. Matlock, T.A. Costello, and K.L. White. 2005. Integrated assessment of BMPs, nutrient transport, and water quality in an agriculturally dominated stream. First International Conference on Environmental Science and Technology. American Academy of Sciences. New Orleans, LA.
  • Chaubey, I., S. Panda, K.L. White, and M. Matlock. 2005. Decision Support System Development for Beaver Lake Watershed management - an environmental informatics approach. ASAE paper No. 052199. 2005 Annual International Conference, Tampa, Florida.
  • Garg, V. and I. Chaubey. 2005. Optical modeling of hyperspectral remote sensing signals to assess water quality. ASAE paper No. 052003. 2005 Annual International Conference, Tampa, Florida.
  • White, K.L., I. Chaubey, and B.E. Haggard. 2005. Coupling of CE QUAL-W2 and SWAT to simulate watershed reservoir management. First International Conference on Environmental Science and Technology. American Academy of Sciences. New Orleans, LA.


Progress 01/01/04 to 12/30/04

Outputs
The following projects related to S-1004 were initiated in 2004. Chaubey, I., M.D. Matlock, and R.A. Morgan. GIS database development and watershed modeling in the Arkansas priority watersheds. Arkansas Soil and Water Conservation Commission. 2004 - 2005. $60,671. Chaubey, I., M.D. Matlock, and R.A. Morgan. SWAT modeling in the Illinois River watershed. Arkansas Soil and Water Conservation Commission. 2004 - 2005. $30,500. Matlock, M.D., I. Chaubey, and R.A. Morgan. Update of Arkansas Nonpoint Source Pollution Management Program. Arkansas Soil and Water Conservation Commission. 2004 - 2005. $151,906. In addition, work is in progress on the following projects Chaubey, I., M.D. Matlock, E.D. Vories, and J. Popp. Development of an integrated water quality - water conservation program in the Arkansas Delta. USDA, National Integrated Water Quality Program. 2003 - 2006. $550,000. Chaubey, I., M.D. Matlock, T.A. Costello, and B.E. Haggard. Sustainable Agriculture and water resource in Arkansas: A bioenvironmental engineering solution. EPA Region 6. 2003 - 2006. $446,100. Chaubey, I., B.E. Haggard, and P. Srivastava. Differentiating runoff contributing areas for effective water quality management. USDA-NRI. 2003 - 2005. $75,000. Chaubey, I., M.D. Matlock, T.A. Costello, and B.E. Haggard. GIS database development and watershed modeling in Arkansas Priority Watersheds. 2003 - 2004. Arkansas Soil and Water Conservation Commission. 2003- 2004. $85,184. Bajwa, S.G., I. Chaubey, and D.R. Gardisser. Pesticide pollution risk assessment and mitigation training in Arkansas Delta. EPA Region 6. 2003- 2005. $41,995. Chaubey, I., M. Matlock, T.A. Costello, and B.E. Haggard. Development of a Decision Support System and Data Needs for the Beaver Lake Watershed. EPA/Arkansas Soil and Water Conservation Commission. 2002 - 2005. $269,973. Chaubey, I., M.A. Nelson, T.A. Costello, and K. Teague, and K. VanDevender . Optimizing BMPs, Water Quality and Sustained Agriculture in the Lincoln Lake Watershed. EPA/Arkansas Soil and Water Conservation Commission. 2001 - 2004. $272,713.

Impacts
Data collected from this project will lead to identify models suitable for TMDL development, identification of runoff source areas in a watershed, and quantification of in-stream processes controlling nutrient transport and dynamics in agricultural watersheds.

Publications

  • White, K.L., and I. Chaubey. 2004. Multi-site and multi-variable calibration of the SWAT model. J. American Water Resources Association. In Print.
  • Chaubey, I., Cotter, A.S., T.A. Costello, and T. Soerens. 2004. Effect of DEM data resolution on SWAT output uncertainty. Journal of Hydrologic Processes 18: In Press.
  • Haggard, B.E., S.A. Ekka, M.D. Matlock, and I. Chaubey. 2004. Phosphate equilibrium between stream sediments and water: potential effects of chemical amendments. Transactions of the ASAE 47(4):1113-1118.
  • Panda, S., V. Garg, and I. Chaubey. 2004. Artificial neural networks application in lake water quality estimation using satellite imagery. Journal of Environmental Informatics. In Review.
  • Chaubey, I. and M. Matlock. 2004. Teaching undergraduate students to manage aquatic ecosystems at the watershed level: an ecological engineering approach. International Journal of Engineering Education. In Review.
  • White, K.L. and I. Chaubey. 2004. Comparison of two methods for modeling nutrient yields from a watershed. Journal of Hydrology. Accepted for publication.
  • Chaubey, I. and K.L. White. 2004. Stochastic validation of SWAT model. Presented at the AWRA Annual International Conference, Orlando, FL. Mutlu, E., I. Chaubey, M. Matlock, R. Morgan, B. Haggard, and D.E. Storm. 2004. NMDESS: A GIS based decision support system for nutrient management. Presented at the AWRA Annual International Conference, Orlando, FL.
  • White, K.L., I. Chaubey, B.E. Haggard, and M. Matlock. 2004. Evaluation of reservoir water quality response to watershed management using computer modeling. Presented at the AWRA Annual International Conference, Orlando, FL.
  • DeLaune, P.B., I. Chaubey, B.E. Haggard, M.J. Cochran, T.C. Daniel, and V. Garg. 2004. Development of the Eucha-Spavinaw phosphorus Index within a court settlement agreement. Poster Presented at the Annual International Conference of the ASA/SSSA/CSA. Seattle, WA.
  • Garg, V., and I. Chaubey. 2004. Remote sensing of chlorophyll and suspended sediment concentrations. ASAE Paper No. 042016. 2004 Annual International Conference, Ottawa, Canada. 12 pp.
  • Panda, S.S., I. Chaubey, and V. Garg. 2004. Artificial neural networks application in lake water quality estimation using satellite imagery. ASAE Paper No. 042073. 2004 Annual International Conference, Ottawa, Canada. 13 pp.
  • Sen, S., B.E. Haggard, I. Chaubey, K.R. Brye, M.D. Matlock, and T.A. Costello. 2004. Preliminary estimation of sediment phosphorus flux in Beaver Lake, Northwest Arkansas. ASAE Paper No. 042269. 2004 Annual International Conference, Ottawa, Canada. 17 pp.
  • White, K.L., I. Chaubey, B.E. Haggard, and M.D. Matlock. 2004. Comparison of two methods for modeling monthly TP yield from a watershed. ASAE Paper No. 042075. 2004 Annual International Conference, Ottawa, Canada. 11 pp.
  • White, K.L. I. Chaubey, and B.E. Haggard. 2004. Linking watershed and reservoir models. ASAE Paper No. 042075. 2004 Annual International Conference, Ottawa, Canada. 12 pp.
  • Garg, V., and I. Chaubey. 2004. A model for predicting spectral signature of suspended sediments. Annual Conference of the American Ecological Engineering Society. Fayetteville, AR. June 7- 10.
  • Panda, S.S., I. Chaubey, and M.D. Matlock. 2004. Using interactive GIS mapping in a watershed management DSS design. Annual Conference of the American Ecological Engineering Society. Fayetteville, AR. June 7- 10.
  • Mutlu, E., I. Chaubey, M.D. Matlock, B.E. Haggard, D.E. Storm, and M. White. 2004. NMDESS: A decision support system for nutrient management. Annual Conference of the American Ecological Engineering Society. Fayetteville, AR. June 7- 10.
  • White, K.L., I. Chaubey, B.E. Haggard, and M. Matlock. 2004. Comparison of two methods for modeling monthly TP yield from a watershed. Annual Conference of the American Ecological Engineering Society. Fayetteville, AR. June 7- 10.
  • Sen, S., B.E. Haggard, I. Chaubey, T.A. Costello, M. Matlock, and K. Brye. 2004. Quantification of internal phosphorus load in Beaver Lake, northwest Arkansas under aerobic and anaerobic conditions. Annual Conference of the American Ecological Engineering Society. Fayetteville, AR. June 7- 10.
  • Garg, V., and I. Chaubey. 2004. Hyperspectral remote sensing of chlorophyll-a for Beaver Reservoir, Arkansas. ASPRS Annual Conference. Denver, CO. May 23 - 28.
  • Panda, S., I. Chaubey, M.D. Matlock, B.E. Haggard, and K.L. White. 2004. Development of GIS-based decision support system for Beaver lake watershed management. 2004 Spring Specialty Conference on GIS and Water Resources III. Nashville, TN. May 17 - 19.
  • Chaubey, I., D. Sahoo, M.D. Matlock, B.E. Haggard, and T.A. Costello. 2004. Quantifying stream nutrient retention in an agriculturally dominated stream. Annual Conference of the Institute of Biological Engineering. Fayetteville, AR. January 9 - 11.


Progress 01/01/03 to 12/31/03

Outputs
The following projects related to S/1004 were initiated in 2003. Chaubey, I., M.D. Matlock, E.D. Vories, and J. Popp. Development of an integrated water quality / water conservation program in the Arkansas Delta. USDA, National Integrated Water Quality Program. 2003 / 2006. $550,000. Chaubey, I., M.D. Matlock, T.A. Costello, and B.E. Haggard. Sustainable Agriculture and water resource in Arkansas: A bioenvironmental engineering solution. EPA Region 6. 2003 / 2006. $446,100. Chaubey, I., B.E. Haggard, and P. Srivastava. Differentiating runoff contributing areas for effective water quality management. USDA/NRI. 2003 / 2005. $75,000. Chaubey, I., M.D. Matlock, T.A. Costello, and B.E. Haggard. GIS database development and watershed modeling in Arkansas Priority Watersheds. 2003 / 2004. Arkansas Soil and Water Conservation Commission. 2003/ 2004. $85,184. Chaubey, I. and V. Garg. Use of hyperspectral remote sensing in lake water quality modeling. NASA/Arkansas Space Grant Consortium. 2003 / 2004. $5,500. Bajwa, S.G., I. Chaubey, and D.R. Gardisser. Pesticide pollution risk assessment and mitigation training in Arkansas Delta. EPA Region 6. 2003/ 2005. $41,995. Chaubey, I., K. White, T.A. Costello, and B. Haggard.. Development of techniques for identifying and linking physical characteristics to surface runoff source areas. USGS/AWRC. 2003/2004. $14,838. In addition, work is in progress on the following projects 1. A USDA funded project titled "A nutrient management decision support system for the Lake Eucha basin" started September 1. Co/PIs on this project are Marty Matlock (PI), Indrajeet Chabuey and Brian Haggard from the University of Arkansas and D. Storm, M. Smolen, and W. Focht from the Oklahoma State University. 2. An EPA funded project titled "Development of a decision support system and data needs for the Beaver Lake watershed" started July 1, 2002. This project is expected to directly help TMDL development in the Beaver Lake watershed. The Co/PI on this project are Indrajeet Chubey (P.I.), M. Matlock, T.Costello, and B. Haggard. 3. An USGS funded project titled "Phosphorus Concentrations and Sediment Phosphorus Flux in Streams and Reservoirs: Effect of Chemical Amendments" is in progress. This project will improve the instream component of water quality models to develop phosphorus TMDLs.

Impacts
Data collected from this project will lead to identify models suitable for TMDL development, identification of runoff source areas in a watershed, and quantification of in/stream processes controlling nutrient transport and dynamics in agricultural watersheds.

Publications

  • Sahoo1, D., I. Chaubey, B.E. Haggard, and M. Matlock. Nutrient retention and limitation in an agriculturally dominated stream in Northwest Arkansas. Poster presented in the 2003 Arkansas Water Resources Conference Center Conference on Quality Water Resources to Meet Our Competing Needs. Fayetteville, AR. April 22 / 23.
  • Ekka, S.A., B.E. Haggard, M.D. Matlock, and I. Chaubey. Impact of wastewater treatment plants on sediment phosphorus concentration. Poster presented in the 2003 Arkansas Water Resources Conference Center Conference on Quality Water Resources to Meet Our Competing Needs. Fayetteville, AR. April 22 / 23.
  • Garg1, V., I. Chaubey, and B.E. Haggard. 2003. Quantification of model output uncertainty due to calibrating watershed characteristics. Transactions of the ASAE 46(5):1347/1353.
  • Cotter1, A.S., I. Chaubey, T.A. Costello, T.S. Soerens, and M.A. Nelson. 2003. Water quality model output uncertainty as affected by spatial resolution of input data. Journal of American Water Resour. Association 39(4): 977/986.
  • Chaubey, I., T.A. Costello, K.L. White, and A.S. Cotter. 2003. Stochastic validation of SWAT model. Proc. Total Maximum Daily Load: Environmental Regulations II. ASAE, St. Joseph, MI. pp. 168/176.
  • White1, K.L., I. Chaubey, and T.A. Costello. 2003. Stakeholder involvement in watershed management: lessons learned. Proc. Total Maximum Daily Load: Environmental Regulations II. ASAE, St. Joseph, MI. pp. 46/50.
  • Sahoo1, D., I. Chaubey, B.E. Haggard, M.D. Matlock, and T.A. Costello. 2003. Stream nutrient dynamics and sediment nutrient interactions in an agricultural watershed. ASAE Paper No. 03/2281, ASAE, St. Joseph, MI.
  • White1, K.L., B.E. Haggard, I. Chaubey, W.R. Green, and J.C. Peterson. 2003. Water quality during base flow and surface runoff conditions at the Buffalo National river near St. Joe, Arkansas. Transactions of the ASAE. In presss.
  • Chaubey, I., Cotter1, A.S., T.A. Costello, and T. Soerens. 2003. Effect of DEM data resolution on SWAT output uncertainty. J. Hydrologic Processes. In Press.
  • Dillahunty, W.H., I. Chaubey, and M.D. Matlock. 2003. Watershed scale agricultural land use impact on instream physicochemical parameters. Discovery 4:21/25.
  • Haggard, B.E., P.A. Moore, Jr., I. Chaubey, and E.H. Stanley. 2003. Nitrogen and phosphorus concentrations and export from Ozark Plateau watersheds: possible effect of land use on reservoir nutrient loading. J. Biosystems Engineering 86(1): 75 / 85.
  • Ekka1, S.A., B.E. Haggard, M.D. Matlock, and I. Chaubey. 2003. Impact of point sources on nutrient interactions in Ozark streams. ASAE Paper No. 03/2282, ASAE, St. Joseph, MI.
  • White1, K.L., B.E. Haggard, and I. Chaubey. 2003. Changes in water quality at Buffalo National River, Arkansas, 1991 / 2001. Poster Presented at the AWRA Spring Specialty Conference on Agricultural Hydrology and Water Quality. Kansas City, MO. May 12 / 14.
  • Ekka1, S.A., B.E. Haggard, M. Matlock, and I. Chaubey. 2003. Impact of wastewater treatment plants in streams of Illinois River Basin. Poster Presented at the AWRA Spring Specialty Conference on Agricultural Hydrology and Water Quality. Kansas City, MO. May 12 / 14.
  • Sahoo1, D., I. Chaubey, B.E. Haggard, and M. Matlock. 2003. Stream nutrient retention and limitation in Moores Creek, Northwest Arkansas. Poster Presented at the AWRA Spring Specialty Conference on Agricultural Hydrology and Water Quality. Kansas City, MO. May 12 / 14.
  • Garg1, V., S.G. Bajwa, and I. Chaubey. 2003. Effect of suspended sediment distribution on spectral reflectance. Poster Presented at the AWRA Spring Specialty Conference on Agricultural Hydrology and Water Quality. Kansas City, MO. May 12 / 14. Sahoo1, D., I. Chaubey, M. Matlock, and B.E. Haggard. 2003. Sediment, nutrient interaction in an agricultural watershed in Northwest Arkansas. Poster presented at the 2003 Annual International Meeting of the Institute of Biological Engineering. Athens, GA. January 17 / 19.
  • White1, K.L, B.E. Haggard, and I. Chaubey. Water quality during base flow and surface runoff conditions at the Buffalo National River near St. Joe, Arkansas from 1991 to 2001. Poster presented at the 2003 Arkansas Water Resources Conference Center Conference on Quality Water Resources to Meet Our Competing Needs. Fayetteville, AR. April 22 / 23.


Progress 01/01/02 to 12/31/02

Outputs
A USGS funded project to assess GIS data requirements for TMDL development in agricultural watersheds. The GIS data analyzed were soils, land use, and DEM. A USDA funded project titled "A nutrient management decision support system for the Lake Eucha basin" started September 1. Co-PIs on this project are Marty Matlock (PI), Indrajeet Chabuey and Brian Haggard from the University of Arkansas and D. Storm, M. Smolen, and W. Focht from the Oklahoma State University. An EPA funded project titled "Development of a decision support system and data needs for the Beaver Lake watershed" started July 1, 2002. This project is expected to directly help TMDL development in the Beaver Lake watershed. The Co-PI on this project are Indrajeet Chubey (P.I.), M. Matlock, T.Costello, and B. Haggard. An USGS funded project titled "Phosphorus Concentrations and Sediment Phosphorus Flux in Streams and Reservoirs: Effect of Chemical Amendments" is in progress. This project will improve the instream component of water quality models to develop phosphorus TMDLs.

Impacts
The results from this project will help develop TMDL methodology, and TMDL plans for the impaired watershed.

Publications

  • Dennis, S., I. Chaubey, and B.E. Haggard. 2002. Quantification of land use impact on stream water quality. Discovery 3: 35-39.
  • Chaubey, I., A.S. Cotter, T.A. Costello, M.A. Nelson, and T.S. Soerens. 2002. Quantification of runoff and nutrient load prediction uncertainty due to GIS data resolution. Proc. AWRC Conference on "Adequate Quality Water Supplies to Meet Our Growing Needs: Scientific, Regulatory, and Public Perspectives". In press
  • White, K.L., I. Chaubey, and M.A. Nelson. 2002. Phosphorus SWAT modeling in the Arkansas Portion of the Illinois River drainage Area. Proc. AWRC Conference on "Adequate Quality Water Supplies to Meet Our Growing Needs: Scientific, Regulatory, and Public Perspectives". In Press.
  • Garg, V., I. Chaubey, and B.E. Haggard. 2002. Quantification of model output uncertainty due to watershed size. Proc. AWRC Conference on "Adequate Quality Water Supplies to Meet Our Growing Needs: Scientific, Regulatory, and Public Perspectives". In Press. Cotter, A.S., I. Chaubey, T.A. Costello, M.A. Nelson, and T. Soerens. 2002. Effect of spatial data resolution on SWAT output uncertainty. ASAE Paper No. 02-2012, ASAE, St. Joseph, MI.
  • Garg. V., I. Chaubey, and B.E. Haggard. 2002. Quantification of model output uncertainty due to watershed size. ASAE Paper No. 022227. ASAE, St. Joseph, MI.
  • Cotter, A.S., I. Chaubey, T.A. Costello, M.A. Nelson, and T. Soerens. 2002. TMDL Data Requirements for Agricultural Watersheds. Proc. Total Maximum Daily Load (TMDL): Environmental Regulations Conference. ASAE, St. Joseph, MI. Pg. 408-415.
  • Chaubey, I., K.A. Warner, G.M. Ward, and E.E. Roden. 2001. Statistical analysis of land use effect on in-stream nutrient concentrations. Proc. Mini-Symposium on Statistical Methods in Hydrology. P.K. Haan and R.D. Harmel (Eds.). ASAE, St. Joseph, MI. pp. 33-38.
  • Chaubey, I. and J.M. Beck. 2001. Long-term nutrient transport assessment of animal manure from agricultural watersheds. In John J. Warwick (ed.), AWRA Annual Spring Specialty Confernce Proceedings. "Water Quality Monitoring and Modeling." American Water Resources Association, Middleburg, VA. TPS-01-1. p. 211-216.
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