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Triennial Review Process

In 2001, the Commission adopted a new three-step triennial review process for surface water quality classifications and standards.  The following descriptions provide additional detail regarding each of the three steps in the process.  Questions or comments can be directed to Trisha Oeth, Commission Administrator, at 303-692-3468.


Descriptions of Water Quality Standards Hearings


Your opinion is important to us.  If you have comments regarding this information, or wish to have additional information included, please email us at cdphe.wqcc@state.co.us.