1. Reporting. The immediate reporting of a discharge or threatened discharge by the responsible party or by the person causing the discharge may be considered in mitigation of any criminal or civil penalties assessed under this subchapter.
2. Removal. If the responsible party or person causing the discharge immediately reports and removes the discharge in accordance with this subchapter, a plan submitted under section 1318‑C and the rules and orders of the board or commissioner, the party or person is not subject to criminal or civil penalties under this subchapter.