Aeration basin panorama view.

Sedona's wastewater system

A lab technician collects samples at the facility.The wastewater system comprises wastewater collection, treatment and management of the effluents and solids resulting from the treatment process. Pumps, manholes, and pipes are the components of the collection system used to transport wastewater from homes and businesses to the facility located about five miles west of the city.

The facility uses basins, pumps, pipes and ultraviolet lights in its treatment process, which is called an activated sludge process. This is a biological process that speeds decomposition of wastes using natural means instead of chemicals, producing effluent (liquid) and sludge (solids). Management of these products involves the use of drying beds, centrifuges, reservoirs, wetlands, and spray irrigation to return the water to the environment.

Aquifer recharge

The city returns high quality effluent to the aquifer via injection wells.  The treated wastewater that the city injects is A+ quality. The city conducts daily tests on the treated wastewater to ensure it meets the standards for A+quality. Learn more about the why and how of aquifer recharge (PDF).

Inspection and maintenance

To reduce the possibility of spills or overflows of untreated sewerage, the city cleans and inspects 150,000 feet of sewer lines on an annual basis, and examines the cleaned lines using a small TV camera.