East Canyon Wastewater Treatment Plant

Snyderville Basin Water Reclamation District, 
Utah

East Canyon Wastewater Treatment Plant

Project Highlights: 
  • Evaluation of chemical phosphorus removal and seasonal and year-round reuse alternatives as a means to meet stringent phosphorus discharge limits.
  • Design of raw water equalization and biological and chemical phosphorus removal facilities.
  • Design of odor control facilities. Provided a solution that achieved SBWRD’s goals and significantly reduced capital costs.
Wastewater treatment facility expansion
Carollo provided facility planning and design for a wastewater treatment facility expansion to provide additional treatment capacity for the 2002 Winter Olympic Games.

Carollo provided wastewater treatment facility planning and design services for the Snyderville Basin Sewer Water Reclamation District (SBWRD), which serves Park City, Utah and the surrounding area. Carollo evaluated biological and chemical phosphorus removal alternatives and seasonal and year-round reuse alternatives to determine the most cost-effective means of meeting new stringent phosphorus discharge limits.

Carollo subsequently designed an expansion of SBWRD’s East Canyon Wastewater Treatment Plant to 4 mgd in order to provide additional treatment capacity for the 2002 Winter Olympic Games, and to handle future growth in the area. The expansion design included:

  • Raw wastewater equalization to increase the capacity of SBWRD’s existing treatment facilities, enhance the biological phosphorus removal, and reduce the cost of tertiary chemical phosphorus polishing facilities.
  • A new 4-mgd headworks facility including two 6-mm step screens with completely-redundant screening conveyors and screening washers/compactors, two vortex grit removal units, and a grit washer/classifier.
  • Chemical phosphorus removal facilities, consisting of chemical addition, solids contact clarification, and tertiary filtration designed to reduce phosphorus to below 0.10 mg/L.
  • Odor control facilities for the headworks, equalization basin, influent pump station, and anaerobic zone of the biological phosphorus removal process consisting of foul air fans and two dual-bed granular activated carbon (GAC) adsorption columns.
  • Completely enclosed screens and covered wastewater channels in the headworks. This reduced the volume of foul air requiring treatment by 10 fold and significantly reduced capital costs.

Construction of this $14 million project was complete in 2003, eight months ahead of schedule.