Memorial Day closure

Most City of Portland offices will be closed Monday, May 27, in observance of Memorial Day.

Preventing Pollution

Environmental Services works with businesses and industries to prevent pollution and protect our rivers. Learn about City requirements, programs, and good business practices that can help you conduct business in ways that protect public health, the environment, and the sewer and stormwater systems.
Photo show tanks of bubbly water that are part of an on-site pretreatment facility for treating wastewater.



Pollution Prevention General Information

Environmental Services