Backflow Prevention Program

The City operates a state-mandated backflow prevention program to prevent drinking water contamination. 

Backflow is a health issue when drinking water is connected directly to a non-drinking water source. This is commonly called a cross connection.  

Cross connection sources  

• Lawn sprinkler systems
• Swimming pools, hot tubs and spas
• Cooling and heating systems
• Portable pressure washers
• Sprayer hose attachments
• Garden hoses
• Radiator flush kits
• Fire sprinklers
• Utility sinks
• Solar systems

City requirements 

Without a required valve installed to prevent backflows, contaminants could taint drinking water.

• Backflow assemblies must be installed on all water-using systems and equipment.
• Each assembly is required to be tested first upon installation, then once a year.

Resources

• Find a backflow testing resource, visit the Oregon Health Authority 
• Get a City permit before installing a backflow prevention assembly. Contact Permit Services at 503-618-2845.

Additional information

• Backflow prevention brochure
• Oregon Health Authority