In 2010 City leaders began working with a team of experts and citizens to determine how Nampa can best meet regulatory requirements for discharging treated wastewater into Indian Creek. This process resulted in a recommendation to improve Nampa’s wastewater treatment facility in multiple phases.
The first set of upgrades (Phase I) are currently under construction. These include building a new pump station, a new aeration basin, retrofits to the existing aeration basins, a new anaerobic digester and a new solids handling facility. Phase I will allow Nampa to reduce phosphorus to intermediate levels until 2020. Phase I was funded through a loan from the Department of Environmental Quality and a sewer rate increase. The next phase of upgrades to the facility will require additional long-term improvements.