Wastewater Treatment
Wastewater Treatment
The City of Sheridan has operated a municipal sewer system since the 1950s.
Treatment Plant & Process
The Wastewater Treatment Plant processes approximately 500,000 gallons of
wastewater each day using a lagoon system for treatment and storage.
Treated water is discharged into the South Yamhill River only from November through May. Before discharge, the water is carefully tested to ensure it meets quality and temperature standards that protect the river’s ecosystem.
During the summer months, the City is not permitted to discharge into the river. Instead, treated water is stored in the lagoons. The City partners with local farmers to use this treated water for irrigating non-food crops, which helps reduce the volume that must be stored.
Collection System
The City maintains roughly 20 miles of sanitary sewer mains and two pump
stations that convey wastewater to the treatment plant. Property owners are
responsible for the sewer lines on their private property; the City maintains
the public main lines.
Planning Documents
- The Wastewater Facility Plan was updated in 2003 (executive summary available below).
- The Plan was further updated in 2013 (full document available below).
Sanitary & Storm Water Drains
City drains are designed solely for wastewater and street runoff. Never
dispose of oil, grease, paint, or other pollutants in these drains—doing so can
damage the system and private property.
For proper disposal of hazardous waste, contact Recology Western Oregon at 503-472-3176.
Sewer Backups
Most backups inside homes or businesses are caused by blockages in the
private plumbing. Cleaning up after a sewer backup is similar to recovering
from a flood. A helpful guide, Cleaning Your Home After a Flood, is
available below and includes information on mold prevention and drying out
affected areas.