Maintenance Responsibilities

Owners are responsible for the maintenance and repair of their private stormwater management facilities. Each spring, the City sends facility owners an annual notification letter as a reminder to maintain their facility. Responsibilities include: 

• Complete monthly inspections to ensure facilities are functioning properly.
• Follow the Clean Water Services list of maintenance activities by facility type.
  • Maintenance must not modify the facility or change the vegetation.
  • The use of herbicides, pesticides, or other forms of chemical treatment are prohibited.

Inspections

• The City’s goal is to inspect 50% of all private facilities each year.
• Owners will be notified of their upcoming inspection with a letter. 
• Contact information is included in the letter in case owners would prefer to be present for the inspection.
• Following the inspection, the City will provide details about any issues found and a rating of pass or fail.

Inventory

All private stormwater management facilities are inventoried at the time of initial construction and tracked in the City’s asset management system. New or annexed facilities are also added into the system periodically.

How Stormwater Management Facilities Work

Stormwater facilities remove pollutants before stormwater enters natural drainage systems and impacts the health of local rivers and streams.

Resources

• Washington County Recording Requirements
• City of Hillsboro Design and Construction Standards

Contact Us

For questions about your private stormwater management facility, inspection results, or maintenance, please email us or call 503-615-6146.