Additionally, the OWRB currently works with several partners, including the USGS, US Army Corps of Engineers, Grand River Dam Authority, and National Weather Service, to conduct flow monitoring on most fixed station sites that are not part of the Oklahoma/USGS Cooperative Gaging Network. To date, 88 stations have a working stage/discharge rating; 82 of those stations are collecting periodic stage data through a data collection platform (DCP). This cooperative effort will allow for loadings to be calculated and trends to be assessed statewide as well as providing much needed data for the Use Support Assessment Process (USAP). Along with the USGS cost share program, Oklahoma's 319 program, Oklahoma's 314 program, and the 303(d)-process drive sample site locations associated with this task.

The objective of the Lake Thunderbird TMDL is to reduce loads of sediments and nutrients so that the waterbody meets all applicable Water Quality Standards. Currently, Lake Thunderbird is not maintaining designated beneficial uses for Fish and Wildlife Propagation for both dissolved oxygen and turbidity, and Public and Private Water Supply for chlorophyll-a. In order to meet the requirements of the TMDL, the City of Norman developed a TMDL Compliance Plan to reduce nutrients to a level that achieves the wasteload allocation (WLA) established in the TMDL. If the TMDL is successful, Lake Thunderbird will be removed from the Oklahoma 303(d) list for impaired waterbodies.

Monitoring includes ten permanent stations and fourteen rotating stations in the Norman MS4 area. Water samples for parameters of interest are collected both during base flow periods and during runoff events. The OWRB installed stream gauges at the permanent stations in order to collect real-time stage data. This real-time data, combined with discharge measurements, is used to establish a rating curve for each station. Information collected by the OWRB is used by the City of Norman to determine where to implement best management practices (BMPs) for improving water quality, as well as to track TMDL compliance.

Monitoring Data by Site
Clear Creek
Jim Blue Creek
Lower Dave Blue Creek
Lower Rock Creek
Lake Laterals
Little River Tributary E
Little River Tributary G
Upper Dave Blue Creek
Upper Rock Creek
Woodcrest Creek