TR-537 Characterization of Middle Yegua, Davidson, and Deer Creeks Watersheds
Authors: Stephanie deVilleneuve, Luna Yang, Jacqueline Rambo, Michael Schramm, and Allen Berthold
Middle Yegua Creek, Davidson Creek, and Deer Creek have all been identified to be impaired for elevated concentrations of Escherichia coli (E. coli) in the 2020 Texas Integrated Report of Surface Water Quality for the Clean Water Act Sections 305(b) and 303(d). Davidson Creek was also listed in the 2020 Texas Integrated Report as impaired for depressed dissolved oxygen. Elevated levels of E. coli have been identified in the Middle Yegua Creek watershed since as early as 2010. For the Davidson Creek watershed, elevated bacteria levels were first identified in 2002, and depressed dissolved oxygen was first identified in 2010. For the Deer Creek watershed, the bacteria impairment was first identified in 2006. This characterization addresses the E. coli impairments in the Middle Yegua Creek, Davidson Creek, and Deer Creek watersheds with supplementary water quality monitoring and a review of the current demographic, climatic, physical, and hydrological conditions of the watersheds.