Buffalo River 



Sponsored by the Patagonia Foundation and BRWA

BRWA Brochure - What is C&H Hog Farms Inc?


BRWA Poster

KHBNR is an independent research project which assesses and documents the water quality of surface and groundwater as it flows across and through karst substrata to the Buffalo National River.

In early 2016, the Patagonia Foundation awarded a grant to the Buffalo River Watershed Alliance (BRWA) to help fund the KHBNR project. Funding was renewed for 2017.

KHBNR was initially designed and directed by eminent karst hydrogeologist Dr. Van Brahana, Ph.D., P.G., University of Arkansas Karst Hydrogeology Professor Emeritus; Research Scientist, U.S. Geological Survey (USGS), Retired  In 2017,  Teresa Turk, M. A., M.S. assumed position of principal investigator.


In response to a request from ADEQ for outside data to consider for its 2018 biennial Water Quality Monitoring and Assessment Report, the following was submitted by BRWA and others on July 31, 2017.

BRWA Cover Letter

KHBNR Data (in Excel format)

Sampling Protocols (QA/QC)

The following data was analyzed by Dr Joe Nix, Ouachita Baptist University during 2016.

Report of sampling project

Map of sampling locations

Sample locations by lat/long (in Excel format)

Data (in Excel format)

Explanation of Box-and-Whisker Graphs

Graphs by month

Graphs by station

Comprehensive data, collected 2014-2016 (in Excel format)

For more information and photos of karst features in the Buffalo National River watershed, see also:



KUAF Interview with Dr Brahana, April 12, 2016

Buffalo River Study Findings To Be Shared, Fayetteville Free Weekly, April 14, 2016

News clipping of presentation in Pine Bluff, AR, June 15, 2017

(Powerpoints must be opened from your Downloads folder)

Does Water Flow Uphill? Powerpoint by Dr Brahana (open from your Downloads folder)

Profits & Porkchops or Pollution? Powerpoint presentation by Dr Brahana and Mike Masterson

What Lies Beneath Powerpoint presentation by Dr Brahana

What's In The Water? Powerpoint by Teresa Turk, April, 2017


Karst Water Environment, Advances in Research, Management and Policy, 2018. See starting on page 91 for research done on the Buffalo National River.

Using Fluorescent Dyes to Indentify Meaningful Water Quality Sampling Locations and Enhance Understanding of Groundwater Flow Near a  Hog CAFO on Mantled Karst. By Van Brahana, Carol Bitting, Katerina Kosic-Ficco, Teresa Turk, John Murdoch, Brian Thompson, and Ray Quick. US Geological Survey Karst Interest Group Proceedings, San Antonio, Texas, 2016

Characterization of the karst hydrogeology of the Boone Formation in Big Creek Valley near Mt. Judea, Arkansas— documenting the close relation of groundwater and surface water. John Murdoch, Carol Bitting, John Van Brahana, Environmental Earth Science, August, 2016

Geochemical Processes and Controls Affecting Water Quality of the Karst Area of Big Creek near Mt. Judea, Arkansas

V. Brahana1, J. Nix, C. Kuyper, T. Turk, F. Usrey, S. Hodges, C. Bitting, K. Ficco, E. Pollock, R. Quick, B. Thompson, J. Murdoch Journal of Arkansas Academy of Science, 2016 

Results from E. coli and dye tracing investigations from selected tributaries of Big Creek, Newton Co. Arkansas 

Brahana, Van, Bitting, Carol, Kosic-Ficco, Katarina, Turk, Teresa, Murdoch, John, Thompson, Brian, and Quick, Ray, 2017, 

 Proceedings of the USGS Karst Interest Group, which includes Dr Brahana's dye trace study posted at top:  U.S. Geological Survey Karst Interest Group Proceedings, San Antonio, Texas, May 19-23, 2017, U.S. Geological Survey Scientific Investigations Report 2017-5023, p. 147-160. 2017


Grant Report submitted September 18, 2016

Index of media coverage of the KHBNR project as reported to the Patagonia Foundation, September 18, 2016. Note: Web links must be cut & pasted into your browser.

Please check this page regularly. Updates will be made as this project progresses.

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