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The Walnut Bayou Watershed is located in southern Oklahoma and is impaired for Non-Point Source (NPS) pollution according to the 2016 Integrated Water Quality Report (ODEQb, 2016). NPS pollution is one of the leading causes of water quality problems in many of the US states that lead to harmful effects on drinking water supplies, recreation, fisheries and wildlife (EPA, nd). The Water Quality Division of the Oklahoma Conservation Commission (OCC) addresses NPS in the State of Oklahoma (OCC, 2014).

The Walnut Bayou Watershed is impaired for turbidity, Enterococcus and dissolved oxygen (DO) and is listed on the 303 (d) Impaired Waters List of the 305 (b) Integrated Water Quality Report (ODEQ, 2016). The objective of this Watershed Based Plan (WBP) is to improve water quality standards for all designated beneficial uses. This WBP consists of several management practices to take place within the Walnut Bayou Watershed in order to address these NPS impairments.