Colorado Regulation #93 is comprised of Colorado’s Section 303(d) List of Impaired Waters and Monitoring and Evaluation List. The official 2024 Regulation #93 will be posted to the Secretary of State’s office website by October 2023, which can be assessed by clicking here.
An electronic version of Regulation #93 is provided below to simplify search and sorting functions. This is an unofficial version and therefore all information should be verified with the official version on the Secretary of State’s office website, as referenced above. Please see the Regulations #93 definitions link for detailed information about how to use this list.
To download an Excel version, right-click on a row in the table below, select export and follow the prompts.