This presentation was delivered as an On Demand session at the Tribal Lands and Environment Forum: Virtual Gathering in August 2020 by Ryan Haerer, USEPA Office of Underground Storage Tanks.
About 15 years ago, industry started reporting regular incidences of corrosion problems. We see corrosion in both gasoline and diesel systems, but in completely different ways. Corrosion is aggressive and can cause release prevention equipment to not work properly, tanks to corrode to failure from the inside, or require premature servicing and equipment replacement of still functioning equipment. New concerns with compatibility are emerging as the industry faces a new push to store E15 nationwide due to policy changes, even though 95% of UST systems can’t compatibly store the fuel now. This session will highlight examples of equipment problems from corrosion, challenges with demonstrating compatibility with E15, updated compliance assistance tools, and what UST stakeholders should look for on these issues when inspecting UST systems.
