Indiana Code Title 13. Environment § 13-18-16-3

Sec. 3. The commissioner may initiate action under IC 4-21.5-3 to assess a civil penalty against a permit holder who fails to take action to correct or prevent contamination of the sanitary or chemical quality of the water supply after the permit holder knew or should have known that the action should be taken.  The civil penalty assessed under this section may not exceed one thousand dollars ($1,000) for each day of violation.