Solid Waste Disposal Site Permits

Application Process

The following documentation must be submitted in writing in order for DEQ to conduct a risk screening and for the permit application to be complete. A complete application should include the following items.

Composting facility/ Anaerobic digester application items

The following items are requested to be submitted as part of the solid waste permit application form.

  • Permit Application (completed and signed)                   
  • Land Use Compatibility Statement (completed and signed) Submit a Land Use Compatibility Statement which acknowledges a composting facility of a specified, proposed size is an allowed use on the specific property covered by the LUCS; attach any findings of fact.
  • Disposal Site Compatibility with Solid Waste Management Plan -(contact DEQ to determine if necessary). A written recommendation from the local solid waste planning authority.
  • Certificate of Business Registry (contact DEQ to determine if necessary). This certificate can be obtained from the Oregon Secretary of State office.
  • Identification of any other known or anticipated permits.
  • Composting facility screening fee of $150.

Environmental Risk Screening information

The following facility operational and physical information is necessary in order for DEQ to conduct an environmental risk screening. DEQ can help obtain some of the required information. If you have any questions, please contact a regional DEQ composting facility representative to discuss.

Operational information:

  • A description of the composting or anaerobic digestion operation including feedstock types, volumes and sources, feedstock receiving area prectices, methods of feedstock preparation such as grinding, feedstock or digestate storage area practices, composting or digestion methods, and uses of composted material or digestates;
  • A description of all existing or planned structures and features for managing leachate and stormwater, including but not limited to information about any detention or infiltration basins, and any infiltration structures such as filter strips and bioswales;
  • If the facility is subject to the pathogen reduction requirements of OAR 340-096-0070(5), a description of the methods the facility will use to achieve such pathogen reduction;
  • A description of Odor control measures including site design features and operational practices;
  • A description of the methods the facility will use to achieve vector control;
  • Any seasonal variations in the operation of the facility;
  • For anaerobic digesters:
    • A description of digestate retention structures and practices.
    • A description of uses for liquid and solid digestate including a description of agronomic use if land application of material.
  • Contact information including the composting facility operator, composting facility owner, and property owner; and
  • Operational and compliance history of the facility.

Physical information:

  • The location and site schematic, including areas for management of leachate and stormwater, of the existing or proposed facility by latitude and longitude, identified on a map;
  • The location of the facility on a tax lot map;
  • The location of and distance to surface water in the drainage area of the composting facility, and all drainage channels, ditches and any other water conveyances leading from the composting facility to surface water, identified on a map;
  • The locations of all commercial and residential structures within a one mile radius of the composting facility, identified on a map or photograph (aerial photograph);
  • A description of any leachate and stormwater produced at the facility, including information about the chemical composition of leachate;
  • For anaerobic digesters
    • Facility plans identifying leachate storage areas and biogas collection and storage facilities.

Note: DEQ will collect the following information if you have difficulty obtaining it.

  • Distance to the uppermost groundwater aquifer and other known aquifers at the location of the composting facility and in any areas proposed for infiltration of leachate or stormwater from the composting facility;
  • Soil type or types, and permeability if known or available, at the location of the composting facility and in any areas proposed for infiltration of leachate or stormwater;
  • The location and well logs of all wells on the property where the composting facility is located; the location and well logs of any wells within ¼ mile of the composting facility; and, if known, the location of any proposed wells within ¼ mile of the composting facility;
  • The prevailing wind direction, by season, identified on a map, and any other climactic information related to wind and air movement.

What to expect:

At the conclusion of the Environmental Screening, DEQ will notify applicants of the results of the screening. Composting facilities and anaerobic digesters that DEQ determines present a low environmental risk will be issued a Registration Permit. Composting facilities and anaerobic digesters that present a potential risk to the environment will be required to submit a Site Operations Plan (with fees) for DEQ approval and will receive an Individual Composting Facility Permit or Anaerobic Digester Permit once the Operations Plan is approved.