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.

Any person against whom a penalty is assessed under this section may, within sixty calendar days after the date of the order of the Secretary assessing such penalty, institute an action in the United States court of appeals for the appropriate judicial circuit for judicial review of such order in accordance with chapter 7 of title 5. The court shall have jurisdiction to enter a judgment affirming, modifying, or setting aside in whole or in part, the order of the Secretary, or the court may remand the proceeding to the Secretary for such further action as the court may direct.

If any person fails to pay an assessment of a civil penalty after it has become a final and unappealable order, the Secretary shall institute an action to recover the amount of such penalty in any appropriate district court of the United States. In such action, the validity and appropriateness of such final assessment order or judgment shall not be subject to review. Section 7172(d) of this title shall not apply with respect to the functions of the Secretary under this section.

No civil penalty may be assessed against the United States or any State or political subdivision of a State or any official or employee of the foregoing.

Nothing in this section shall prevent the Secretary from enforcing any provision of this subchapter or any cooperative agreement or any such rule by injunction or other equitable remedy.