Sanitary and Stormwater


The health and sanitation of our City and local environment depend on the underground Sanitary Sewer and Stormwater Systems. Although they are out-of-sight, these separate utility systems provide essential services to both residents and businesses to help keep the City running smoothly.

The Public Works Department manages both utilities by actively inspecting, assessing, cleaning, and repairing the Sanitary Sewer and Stormwater Systems to ensure they are performing at optimum capacity. 

Stormwater System and Sanitary Sewer System

Sanitary Sewer System

The Sanitary Sewer System is designed to carry wastewater from sinks, showers, and toilets toward regional wastewater treatment plants. Public Works manages the underground Sanitary Sewer System to ensure the City's infrastructure remains in good working order.

Read more about the Sanitary Sewer System.

Stormwater System

The Stormwater System is designed to provide drainage and imrpove the City's natural environment. The system also provides stormwater management, flood control, erosion prevention, and pollution reduction throughout the City. Public Works manages the City's Stormwater System to meet all regulatory requirements and to improve the health of the Tualatin River.

Get more information about Hillsboro's Stormwater System.