EPA Approves In-Situ RDO Methods
The U.S. Environmental Protection Agency (EPA) has granted nationwide approval to three optical RDO® dissolved oxygen methods. For details, read the press release.
These 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. NPDES permit holders can use RDO methods for process, field, and laboratory applications.
For more information on the final Methods Update Rule published on May 18, 2012, visit EPA Regulatory Changes.
- In-Situ Method 1003-8-2009 Biochemical Oxygen Demand (BOD) Measurement by Optical Probe
- In-Situ Method 1004-8-2009 Carbonaceous Biochemical Oxygen Demand (CBOD) by Optical Probe
- In-Situ Method 1002-8-2009 Dissolved Oxygen (DO) Measurement by Optical Probe
- Alternate Test Procedure N09-0020 In-Situ Method 1003-8-2009 Biochemical Oxygen Demand (BOD) Measurement by Optical Probe
- Alternate Test Procedure N09-0021 In-Situ Method 1004-8-2009 Carbonaceous Biochemical Oxygen Demand (CBOD) by Optical Probe
- Alternate Test Procedure N05-0014 In-Situ Method 1002-8-2009 Dissolved Oxygen (DO) Measurement by Optical Probe
- Optical DO technology white paper
For more information, select your EPA region:
Region 1: Connecticut, Maine, Massachusetts, New Hampshire, Rhode Island, and Vermont
Region 2: New Jersey, New York, Puerto Rico, and U.S. Virgin Islands
Region 3: Delaware, Maryland, Pennsylvania, Virginia, West Virginia, and the District of Columbia
Region 4: Alabama, Florida, Georgia, Kentucky, Mississippi, North Carolina, South Carolina, and Tennessee
Region 5: Illinois, Indiana, Michigan, Minnesota, Ohio, and Wisconsin
Region 6: Arkansas, Louisiana, New Mexico, Oklahoma, and Texas
Region 7: Iowa, Kansas, Missouri, and Nebraska
Region 8: Colorado, Montana, North Dakota, South Dakota, Utah, and Wyoming
Region 9: Arizona, California, Hawaii, Nevada, and the territories of Guam and American Samoa
Region 10: Alaska, Idaho, Oregon, and Washington
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