Wastewater Treatment

What's New

• Dec. 7, 2012 - City using new ultraviolet light technology to safely treat Boulder's wastewater before sending it downstream

Current project construction is wrapping up with a final completion date of May 2013 for:

• an ultraviolet (UV) disinfection system that will replace
the chlorine / sulfur dioxide disinfection system;
• digester modifications; and
• headworks modifications.

The Nutrient Compliance Study was finalized earlier this year. Read the executive summary here.

• The Nutrient Compliance Study looks ahead to determine how the City of Boulder may comply with more stringent future wastewater discharge regulations, including:
• daily maximum nitrate and ammonia limits (effective December 2017);
• Colorado Regulation 85: Technology-based nutrient limits (effective approximately 2022); and
• Colorado Regulation 31: Water quality-based nutrient limits (effective approximately 2030).

• The one-megawatt solar electric system at the Wastewater Treatment Facility has generated more than three million kilowatt-hours of energy, saving city ratepayers more than $75,000. 

Last Updated on Friday, 26 April 2013 10:08