The Department of Environmental Quality, or DEQ, is the Oregon agency responsible for protecting and improving the state’s air, land, and water quality. The DEQ enforces environmental laws, manages hazardous waste, regulates emissions, and runs portions of the vehicle inspection program to ensure compliance with environmental standards.
What does the DEQ do?
While the primary responsibility of the DEQ is to enforce environmental laws to protect and enhance Oregon’s natural resources, the agency also manages the proper disposal of solid and hazardous wastes and assists in cleaning up contaminated properties. The DEQ fights climate change with policies that reduce greenhouse gas (GHG) emissions, prevent toxic chemical releases, and mitigate risks from toxins already in the environment.
The agency also has the authority to issue civil penalties for violations of pollution laws and standards. Several citizen advisory committees and government officials work together to guide these decisions.
What regulations does DEQ enforce?
The DEQ doesn’t have a tidy list of enforceable regulations; instead, its regulatory authority is spread across state statutes and a large body of administrative rules. Regulations are implemented through the Oregon Administrative Rules (OAR), primarily OAR Chapter 340, which contains the agency’s environmental standards, permitting requirements, and enforcement policies.
Regulatory examples
- Air quality regulations: Air contaminant discharge permits, emissions standards, Clean Fuels Program requirements, and Federal Clean Air Act programs delegated to Oregon.
- Water quality regulations: NPDES and WPCF discharge permits, water quality standards and beneficial uses, Total Maximum Daily Loads (TMDLs), and underground injection control and wastewater systems.
- Land quality, waste, and cleanup regulations: Solid waste and landfill standards, hazardous waste generation and treatment, environmental cleanup of contaminated sites, and chemical mining activities.
- Recycling, product stewardship, and materials management: Electronics recycling, drug take-back programs, recycling modernization and waste reduction, and materials management programs.
- Permitting, compliance, and enforcement: Issue, deny, modify, or revoke environmental permits; conduct inspections and investigations; issue enforcement actions and civil penalties; and maintain enforcement and compliance databases.\
How does DEQ regulate greenhouse gas (GHG) emissions?
The DEQ administers Oregon's Greenhouse Gas Reporting Program, which requires certain large facilities and energy suppliers to report emissions annually.
- Who reports: Large stationary sources e.g., permitted ACDP/Title V facilities, fuel suppliers and in-state producers, electricity and natural gas suppliers
- Reporting applicability: For permitted stationary sources, reporting is generally required at 2500 MT CO2e per year. Applicability thresholds vary by source category.
- Verification: Required for larger emitters, typically 25000 metric tons CO2e.
See our detailed guide on Oregon GHG reporting for more information.
How do DEQ responsibilities interact with federal regulations?
Many DEQ programs are federally delegated, meaning Oregon implements and enforces federal environmental laws such as the Clean Air Act, the Clean Water Act, and RCRA hazardous waste regulations.
While under Environmental Protection Agency (EPA) oversight, the DEQ enforces these programs at the state level.
How can developers utilize the DEQ in project planning?
The DEQ offers valuable information for developers, including public guidance and permitting resources, and an understanding of which environmental programs apply to their projects. By engaging with the DEQ early in the planning process, developers can gain technical insight, regulatory guidance, and permitting oversight related to air quality, water quality, waste management, and site cleanup.
Learn more about how a third-party consultant can help developers engage regulatory agencies.