Approximately 108,100 acres of this watershed fall within the Edwards Aquifer recharge zone. The site is reported to have contaminated soil and water with lead and asbestos. Additional sampling is needed to identify the sources of many of the concerns throughout the watershed. In the 1994 data analyses, this watershed was listed as having the second highest number of fish kills reported within the Brazos River Basin. The data analyses identify nutrients and cadmium as concerns in the classified and unclassified segments of the watershed.
Possible concerns are determined to be selenium, lead, silver, copper, and zinc.
Mining activities, septic systems, oil production, and old landfills are identified through the CRP assessment process as potential sources of contamination in this watershed. Due to elevated levels of fecal coliform bacteria, a portion of the river in this segment does not support contact recreation use.