(f) In determining the amount of a penalty assessed under (a) of this section, the commission shall consider
- (1) the extent to which the person committing the violation was acting in good faith in attempting to comply;
- (2) the extent to which the person committing the violation acted in a wilful or knowing manner;
- (3) the extent and seriousness of the violation and the actual or potential threat to public health or the environment;
- (4) the economic or environmental harm or injury to the public caused by the violation;
- (5) the economic value or other benefits derived by the person committing the violation from the commission of the violation;
- (6) any history of previous violations by the person committing the violation;
- (7) the need to deter similar behavior by the person committing the violation and others similarly situated at the time of the violation or in the future;
- (8) the effort made by the person committing the violation to correct the violation and prevent future violations; and
- (9) other matters justice requires.