Any person who violates any provision of this subchapter or any cooperative agreement entered into pursuant to this subchapter or any rule prescribed under this chapter concerning any designated processing site, disposition site, or remedial action shall be subject to an assessment by the Secretary of a civil penalty of not more than $1,000 per day per violation. Such assessment shall be made by order after notice and an opportunity for a public hearing, pursuant to section 554 of title 5.