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Are the In-Situ Inc. Rugged Dissolved Oxygen (RDO®) optical DO methods EPA approved?

April 26, 2017Approved EPA in-situ methods optical

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Are the In-Situ Inc. Rugged Dissolved Oxygen (RDO®) optical DO methods EPA approved?

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On November 3, 2009, three In-Situ RDO methods received nationwide U.S. Environmental Protection Agency (EPA) approval under the Alternate Test Procedure (ATP) process. The In-Situ RDO methods have been recommended by the EPA Office of Science and Technology for inclusion at 40 CFR Part 136.3. National Pollution Discharge and Elimination System (NPDES) permit holders may begin monitoring with the In-Situ RDO methods after seeking approval from their regional EPA authority. These optical (luminescence) methods can be used in the measurement of Biochemical Oxygen Demand (BOD), Carbonaceous Biochemical Oxygen Demand (CBOD), and Dissolved Oxygen (DO) under the Clean Water Act.