303(d) and integrated reporting
The 303(d) List of Water-Quality-Limited Segments Requiring TMDLs — 303(d) List and Colorado’s Monitoring and Evaluation List (M&E List) are included in Regulation 93.
This list fulfills Section 303(d) of the federal Clean Water Act, which requires states to submit to the U.S. Environmental Protection Agency (EPA) a list of waters for which technology-based effluent limitations and other required controls aren’t stringent enough to implement water quality standards.
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305(b): Integrated Water Quality Monitoring and Assessment Report.