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Across Oklahoma, OWRB staff conduct stream, lake, and groundwater monitoring to collect water quality and quantity data for a variety of purposes. Through the Beneficial Use Monitoring Program (BUMP), lake sampling is conducted quarterly at approximately 130 lakes on a five-year rotation schedule. Stream sampling occurs on more than 100 river and stream sites annually. Groundwater sampling through the Groundwater Monitoring and Assessment Program (GMAP) is conducted on a network of approximately 750 wells on Oklahoma's 21 major aquifers (phased in by 2016 and sampled on a four-year rotation).
To supplement BUMP data, the OWRB conducts statistical survey monitoring throughout the state at sites selected randomly by computer. Lake and stream sites are sampled across the state. Any lakes greater than 50 surface acres in size and any stream segment can be selected for testing. A physical habitat assessment is conducted, chemistry is analyzed, and samples of algae and bacteria are collected at each waterbody. Fish and macroinvertrebrate collections are also made at each selected stream site.
Since 2001, the OWRB has been conducting groundwater monitoring for the Oklahoma Department of Agriculture, Food and Forestry (ODAFF) as part of its oversight of Licensed Managed Feeding Operations (LMFOs). OWRB staff collect groundwater samples from select LMFO monitoring wells and submit them to the ODAFF’s laboratory for analysis of potential contamination of groundwater, signaled through high nitrate-nitrogen concentrations, high ammonium-nitrogen concentrations, or sample analyses containing three or more fecal coliform colonies. Quarterly and annual reports of findings are submitted by OWRB staff.
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Page last updated: July 24, 2014