This memorandum summarizes major state and federal water quality control policies pertaining to nutrients; describes the major provisions of the new Section 17 of Regulation 31 that establishes interim numeric values for phosphorus, nitrogen and chlorophyll; describes the new Regulation 85 that establishes numerical effluent limitations for domestic wastewater treatment plants and other wastewater dischargers; summarizes the rule review process of the Colorado General Assembly; and describes the U.S. Environmental Protection Agency's (EPA) review process for new water quality standards.
This memorandum provides an executive summary of the various Executive Orders issued during the declared disaster emergency related to the presence of COVID-19 in Colorado.