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Disposal Requirements for
Asbestos-Containing Waste Material

What you need to know about disposing of material that may contain asbestos

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Acrobat Format

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Hillsboro Landfill
3205 SE Minter Bridge Road
Hillsboro, OR 97123

503 640-9427
FAX 503 648-3942

Operation Hours:

6:00 am - 4:00 pm | Monday – Friday
Closed Saturday and Sunday

8:00 am - 4:00 pm | Monday - Friday


New Years Eve - 6:00 am to 12 noon
New Years Day - Closed
Memorial Day - Closed
July 4th - Closed
Labor Day - Closed
Thanksgiving Day - Closed
December 24 - 6:00 am to 12 noon
December 25 - Closed

Hillsboro Landfill Rates

Payment Methods:

Cash, Business Checks (No Personal Checks), Visa, Mastercard and Debit Cards (with Visa and Mastercard logos)

Pay your Hillsboro Landfill Disposal Account On-Line with the WM ezPay Program! All you have to do is click this icon:

EZ Pay - Click Here


TSC Portland
7227 NE 55th Avenue
Portland, OR 97218

800 685 8001 or
800 963 4776

Community Relations

Jackie Lang
503 493 7848 or

Communities Served

Aloha, Beaverton, Cornelius,
Forest Grove, Gaston, Hillsboro,
North Plains, Portland, Sherwood,
Tigard, Unincorporated Washington County

Download the brochure

Hillsboro Landfill

Serving the western Portland metro area, Hillsboro Landfill provides area businesses and industries with professional disposal services that are safe and convenient. The landfill is engineered with overlapping environmental protection systems that meet or exceed rigorous government regulations and are subject to highly regulated monitoring and reporting requirements. Systems include engineered liners and covers, leachate collection and removal, and landfill gas collection and control. This “special purpose” landfill accepts special waste only; it does not accept municipal solid waste or hazardous waste.

Acceptable Material

  • Asbestos - Friable & Non-Friable
  • Dry Waste
  • Auto Shredder Residue (Non-Hazardous)
  • Industrial & Special Waste
  • CERCLA Wastes (Non-Hazardous)
Unacceptable Wastes
  • Batteries
  • Explosives
  • NORM
  • Biosolids
  • Hazardous Waste
  • Tires
  • CERCLA Wastes (Hazardous)
  • Medical Waste Waste Containing Free Liquids
  • E&P Wastes
  • Municipal Solid Waste
  • Yard Waste
Additional Services Provided

For information about Hazardous Waste Disposal Click Here.

If you have questions or need more information, please e-mail us at

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 thirdparty engineering firms and subjected to review and approval by the Oregon Department of Environmental Quality (DEQ).

Groundwater Monitoring

Groundwater is monitored by a total of 26 wells, which monitor both upgradient and downgradient groundwater surrounding the landfill. Monitoring results are submitted to DEQ.

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 & 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.

Promoting Wetlands and Wildlife

This site includes 120 acres of wetlands and wildlife habitat. It is home to 100 bird species and mammals including the Great Blue Heron. 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 stormwater and for floodwaters from the Tualatin River.

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.

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

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. With 100 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.

Year Opened

Projected Life Remaining
43 years

Facility Acreage
395 acres

Permitted Footprint
152 acres

Remaining Permitted Capacity
13,750,400 cubic yards

Tons Processed Annually
350,000 tons

Waste Management of Oregon

Permit Type & Permit #
DEQ Solid Waste
Permit #112

Number of Employees

Landfill project provides more room for debris -
Site not expected to reach capacity for 35 years

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