Gateway Aerated Lagoon Wastewater Treatment Plant

Project consisted of preliminary engineering and planning of a new wastewater collection and treatment system, through final design, Plans and Specifications and construction administration for a small community in Western Colorado along the Dolores River that utilizes private ISDS. Planning and design considered various alternative treatment plant sites and treatment technologies to meet Preliminary Effluent Limits established by the Colorado Department of Public Health and Environment (CDPHE).

Alternative alignments of the collection system, that includes a major River crossing and at least one sewage lift station were also developed. A 10-inch diameter interceptor sewer line from the selected treatment plant site to the River crossing has been designed and constructed.

The 13,750 gpd aerated lagoon treatment plant, including Site Application approval, Plans and Specifications and approximately 95% of construction is currently complete, with the Operations and Maintenance Manual under review of the CDPHE, and plant start-up scheduled in the near future.