State updates hazardous substances list to include harmful forever chemicals, begins rulemaking
Firefighting foam 'unintentionally released' in an aircraft hangar at Travis Air Force Base in California on Sept. 24, 2013. Firefighting foam contains PFAS or "forever chemicals" that have gotten into the environment and groundwater. Oregon and other states are required to test for the contaminants during the next two years under guidance from the U.S. Environmental Protection Agency. (Ken Wright/U.S. Air Force)
Oregon's list of regulated hazardous substances is getting its first update in nearly two decades with the addition of six 'forever chemicals' known to harm human health.
The Oregon Department of Environmental Quality on Tuesday announced it would add six perfluoroalkyl and polyfluoroalkyl substances, or PFAS, to the state's list of more than 800 regulated contaminants and begin creating regulations to limit Oregonians' exposure to them.
'We need this rulemaking to hold parties responsible for contamination and to address that contamination,' said Sarah Van Glubt, a manager in DEQ's environmental cleanup program who is leading the rulemaking. 'Otherwise, right now, everything is voluntary. We can't require parties to test and treat for these chemicals.'.
The Environmental Quality Commission is expected to vote on adding the chemicals to the state's list and adopting new regulations on or after May 21.
Email comments to: PFAS2025@deq.oregon.gov
Join a public hearing on April 22 at 11 a.m. here or 6 p.m. here
PFAS are human-made chemical chains used in products such as flame retardants, nonstick cookware and waterproof clothing that do not break down or go away naturally but instead have for decades leached into rivers and streams and contaminated soil, water and even air.
They are thought to now be in the blood of everyone in the U.S., according to research and testing from the federal Centers for Disease Control and Prevention and can lead to increased risks for cancers, heart damage, high cholesterol and birth defects, among other adverse health effects.
Suspected sources of past or ongoing PFAS pollution in Oregon include 139 commercial airports that are or were required to maintain PFAS-containing firefighting foam on site, as well as 18 municipal fire training facilities near 20 of the most populous cities in the state, according to rulemaking documents from DEQ.
Officials at Portland International Airport began testing for PFAS in 2017 in and around a firefighter training ground there used by the Air National Guard. They identified PFAS contamination adjacent to the nearby Columbia Slough and found PFAS-impaired fish and aquatic species. They've since switched to using PFAS-free firefighting foam and have begun initial stages of cleanup.
Oregon lawmakers are considering a bill — Senate Bill 91 — that would ban PFAS from firefighting foam used on the ground by firefighters. The Oregon Senate voted to pass the bill nearly unanimously in February, but a vote in the House has not yet been scheduled.
Other sites to potentially test for PFAS contamination include 22 bulk fuel facilities and 93 metal plating facilities in Oregon.
In 2024, the U.S. Envionmental Protection Agency added several PFAS to the federal list of regulated hazardous substances, and mandated states begin testing for them in drinking water systems.
The Oregon Health Authority has identified PFAS in 35 Oregon public drinking water systems, with 24 of those exceeding the EPA's new drinking water standards for the compounds. The state has until April 2026 to adopt the federal agency's new PFAS standards and public water systems have until April 2029 to comply with those standards.
DEQ's new regulations would apply to PFAS pollution in rivers, lakes, soil and groundwater but would not address potential contamination released through the air, such as when biosolids and sewage sludge containing PFAS are burned, releasing PFAS into the air, or potential PFAS contamination from those biosolids being spread on farm fields as fertilizer.
Biosolids filtered from Portland's sewer and wastewater get heated and dried out in anaerobic digestors and sent to farms in eastern Oregon as fertilizer. The department doesn't test those biosolids, which likely contain PFAS.
Department spokesman Antony Sparrow said the EPA is developing a risk assessment for sewage sludge that will inform future state regulations.
Van Glubt said the department is working on a strategic plan that would combine the work of DEQ's air, water, biosolids and other teams, as well as work being done at other agencies, to deal with ongoing PFAS issues.
'This rule making really is just addressing one piece of the puzzle,' she said. 'There are other issues at play with PFAS that will need to be addressed.'.
Oregon's hazardous substances list was last updated in 2006, when environmental regulators added methane to the list.
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