Feds launch special air monitoring at Portland fuel storage terminal
The Environmental Protection Agency is investigating whether companies at Portland’s fuel storage hub on the Willamette River are following requirements to prevent the release of excess toxic vapors and hazardous air pollutants from storage tanks.The agency said nine facilities at the Critical Energy Infrastructure hub on the river, including the controversial Zenith Energy, are required to collect air monitoring data for concentrations of five volatile organic compounds. Air monitors will collect samples of benzene, ethylbenzene, toluene, xylenes and hexane at the property lines of the companies’ sites for one year.The air monitoring started earlier this fall, said EPA spokesperson Suzanne Skadowski. Companies must submit the data to the agency every two weeks.The focus on Portland’s fuel storage terminal is part of a federal initiative to reduce pollution in communities that suffer disproportionate impacts from higher levels or multiple sources of toxic air pollution. Earlier this year, the EPA identified Portland among 27 communities across the U.S. where air monitoring is to take place. The agency uses a screening tool that combines environmental and socioeconomic data to determine which communities are most overburdened by pollution.The Portland hub is a 6-mile stretch along U.S. 30 between the Fremont Bridge and the southern tip of Sauvie Island. More than 90% of Oregon’s supply of fuels – mostly gasoline, but also diesel, liquified natural gas and renewable fuels such as biodiesel and ethanol – comes through the hub.Eleven companies operate 400 active storage tanks with the capacity to hold at least 350 million gallons of fuels. The companies also load fuel onto barges and trucks for distribution at the hub.Both the storage and loading operations emit vapors containing volatile organic compounds which can increase ozone levels and create smog.The federal agency said it has conducted over 184 inspections, including at the Portland hub. The inspections have indicated that some companies may not be maintaining or operating storage tanks and other activities to adequately minimize or prevent emissions.The EPA declined to specify when it inspected the fuel terminals or how many times. The agency said it’s still evaluating the inspections’ results.Companies that must collect the new air monitoring data in Portland are: Chevron, Kinder Morgan (two terminal locations), McCall Oil, Phillips 66, Seaport Midstream Partners, NuStar Energy, Shell and Zenith Energy.These companies are regulated by the Clean Air Act and must secure air quality permits from the Oregon Department of Environmental Quality.The EPA said it will use the new air monitoring data, along with the on-site inspections and other information, to help determine compliance with federal clean air standards. The monitoring results will be provided to the public.The agency said the monitoring data will not show the concentrations of pollutants in the community, the concentrations that people are exposed to or the potential impacts to public health.— Gosia Wozniacka covers environmental justice, climate change, the clean energy transition and other environmental issues. Reach her at gwozniacka@oregonian.com or 971-421-3154.Our journalism needs your support. Subscribe today to OregonLive.com.
The Environmental Protection Agency is investigating whether companies at Portland’s fuel storage hub are following requirements to prevent the release of excess toxic vapors and hazardous air pollutants from storage tanks.
The Environmental Protection Agency is investigating whether companies at Portland’s fuel storage hub on the Willamette River are following requirements to prevent the release of excess toxic vapors and hazardous air pollutants from storage tanks.
The agency said nine facilities at the Critical Energy Infrastructure hub on the river, including the controversial Zenith Energy, are required to collect air monitoring data for concentrations of five volatile organic compounds. Air monitors will collect samples of benzene, ethylbenzene, toluene, xylenes and hexane at the property lines of the companies’ sites for one year.
The air monitoring started earlier this fall, said EPA spokesperson Suzanne Skadowski. Companies must submit the data to the agency every two weeks.
The focus on Portland’s fuel storage terminal is part of a federal initiative to reduce pollution in communities that suffer disproportionate impacts from higher levels or multiple sources of toxic air pollution. Earlier this year, the EPA identified Portland among 27 communities across the U.S. where air monitoring is to take place. The agency uses a screening tool that combines environmental and socioeconomic data to determine which communities are most overburdened by pollution.
The Portland hub is a 6-mile stretch along U.S. 30 between the Fremont Bridge and the southern tip of Sauvie Island. More than 90% of Oregon’s supply of fuels – mostly gasoline, but also diesel, liquified natural gas and renewable fuels such as biodiesel and ethanol – comes through the hub.
Eleven companies operate 400 active storage tanks with the capacity to hold at least 350 million gallons of fuels. The companies also load fuel onto barges and trucks for distribution at the hub.
Both the storage and loading operations emit vapors containing volatile organic compounds which can increase ozone levels and create smog.
The federal agency said it has conducted over 184 inspections, including at the Portland hub. The inspections have indicated that some companies may not be maintaining or operating storage tanks and other activities to adequately minimize or prevent emissions.
The EPA declined to specify when it inspected the fuel terminals or how many times. The agency said it’s still evaluating the inspections’ results.
Companies that must collect the new air monitoring data in Portland are: Chevron, Kinder Morgan (two terminal locations), McCall Oil, Phillips 66, Seaport Midstream Partners, NuStar Energy, Shell and Zenith Energy.
These companies are regulated by the Clean Air Act and must secure air quality permits from the Oregon Department of Environmental Quality.
The EPA said it will use the new air monitoring data, along with the on-site inspections and other information, to help determine compliance with federal clean air standards. The monitoring results will be provided to the public.
The agency said the monitoring data will not show the concentrations of pollutants in the community, the concentrations that people are exposed to or the potential impacts to public health.
— Gosia Wozniacka covers environmental justice, climate change, the clean energy transition and other environmental issues. Reach her at gwozniacka@oregonian.com or 971-421-3154.
Our journalism needs your support. Subscribe today to OregonLive.com.