Any person who willfully or knowingly violates paragraph (1), (3), (5), or (6) of subsection (a) of section 4909 of this title shall be punished by a fine of not more than $25,000 per day of violation, or by imprisonment for not more than one year, or by both. If the conviction is for a violation committed after a first conviction of such person under this subsection, punishment shall be by a fine of not more than $50,000 per day of violation, or by imprisonment for not more than two years, or by both.

Any person who violates paragraph (1), (3), (5), or (6) of subsection (a) of section 4909 of this title shall be subject to a civil penalty not to exceed $10,000 per day of such violation.

Whenever any person is in violation of section 4909(a) of this title, the Administrator may issue an order specifying such relief as he determines is necessary to protect the public health and welfare.

Any order under this subsection shall be issued only after notice and opportunity for a hearing in accordance with section 554 of title 5.