Aerial view of the Sandy wastewater treatment plant with Mount H
Aerial view of the Sandy wastewater treatment plant with Mount Hood in the backbround

The City of Sandy provides sanitary sewer service to City residents where service is available.  Most of the City is served by the system except for a small area on Langensand south of Dubarko Rd. and on Bluff Road north of Bell Street.

Sandy's sewage is treated at a plant off of Jarl Road. Treated effluent is discharged to Tickle Creek, a tributary of Deep Creek (and ultimately the Clackamas River) between November 1st and April 30th. As part of an innovative re-use program, a nearby nursery uses our treated wastewater to supplement their existing irrigation supplies between May 1st and October 30th.

The treatment plant was placed into service in 1998. It is capable of treating 1.25 million gallons per day during dry weather and up to 4 million gallons per day during wet weather. An activated sludge process is used followed by effluent filtration. Ultraviolet (UV) light is used to disinfect the treated wastewater eliminating chlorine disinfection, which tends to harm beneficial aquatic species.

Since chlorine disinfection ceased in 1998 salmon (primarily coho) have returned to Tickle Creek upstream of the treatment plant.