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Hillsboro Landfill

Your service

We are proud to serve business and industrial customers in the Portland metro area.

Our safe and environmentally sound facility provides you with:

  • Safe, professional, and reliable disposal and recycling services
  • Wildlife habitat, which is certified by the Wildlife Habitat Council
  • Overlapping environmental protection systems that meet or exceed rigorous state and federal regulations

As a special purpose landfill, we accept special waste only. We do not accept municipal solid waste (MSW), residential household waste, or hazardous waste.

Visit us today. For more information, or with questions, please contact us (details in the contact box, above right).

We accept:

  • Asbestos (friable and non-friable)
  • Dry waste
  • Auto shredder residue (non-hazardous)
  • Industrial and special waste
  • CERCLA wastes (non-hazardous)

We do NOT accept:

  • Batteries
  • Explosives
  • NORM
  • Bio-solids
  • Hazardous waste
  • Tires
  • CERCLA wastes (hazardous)
  • Medical waste (containing free liquids)
  • E and P wastes
  • Municipal solid waste
  • Yard waste

We provide additional recycling services via:

  • Tualatin Valley Waste Recovery
  • Public recycling drop-off area

For information about hazardous waste disposal visit the Waste Management Chemical Waste Northwest page here.

Our community


Hillsboro Landfill is the recipient of two prestigious honors, the 2010 WM Environmental Excellence Award, and certification from the Wildlife Habitat Council. Both awards recognize Hillsboro Landfill's operational excellence and success in improving wildlife habitat and educating the community.

Certified wildlife habitat

With 120 acres of wildlife habitat, this Waste Management site is home to large populations of mammals and birds, and a world-class Blue Heron rookery. Hillsboro Landfill partners with Jackson Bottom Wetlands to protect wildlife through the development of wetlands and uplands habitats.

Our wildlife habitat and wetlands have earned prestigious certification from the Wildlife Habitat Council. These wetlands are also important to the community because they act as a relief valve for neighborhood storm water and floodwaters from the Tualatin River.

Community partnerships and involvement

Hillsboro Landfill is proud to be an active supporter of the following events, charities and service groups:

  • Earth Day
  • Hillsboro Chamber of Commerce
  • Hillsboro Public Library
  • Jackson Bottoms Wetland Preserve and their Annual "Tweet of Dreams"
  • Loaves and Fishes Center, Hillsboro
  • Oregon Refuse & Recycling Association
  • Solid Waste Association of North America
  • Stop Oregon Litter and Vandalism (SOLV) of Washington County
  • Tuality Healthcare Foundation "CAT Walk" for Cancer Awareness and Treatment
  • Washington County Solid Waste Advisory Committee

Facility details

Hillsboro Landfill is part of the Waste Management Landfill Group.

Containment design

Our double-liner system protects the environment by ensuring that all waste and wastewater (leachate) is contained and isolated from soil and groundwater. Hillsboro Landfill uses synthetic membrane and clay liners built to strict engineering standards. All construction is monitored and documented by independent third party engineering firms and subjected to review and approval by the Department of Environmental Quality (DEQ).

Groundwater monitoring

Groundwater is monitored by a total of 26 wells, which monitor both up-gradient and down-gradient groundwater surrounding the landfill. Monitoring results are submitted to the Department of Environmental Quality.

Landfill gas management

Hillsboro Landfill has an active gas collection system, which pulls landfill gas from a series of vertical and horizontal collectors from within the landfill. The gas system collects approximately 400 cubic feet per minute of landfill gas that is managed by a blower and flare system at the site.

Leachate collection and treatment

All waste cells have a leachate collection and removal system, which includes an automated pumping system that maintains sump levels below regulatory standards. Leachate is collected and pumped through a pipeline for treatment to the Rock Creek Treatment Plant owned by Clean Water Services.

Approval process

Waste Management has a defined waste screening protocol for each of its Subtitle D non-hazardous waste facilities, which protects both our employees and the environment. For all industrial and special waste streams, the generator or agent must complete a Generator's Non-Hazardous Waste Profile (available online at for review and approval by our technical staff.


Waste Management provides the highest level of services backed with a written indemnification that protects customers from fines, lawsuits, sanctions or other legal/regulatory actions.