Senate Enrolled Act 421 Summary

• Repeals IC 13-18-5.5 (above ground storage tank reporting requirements) effective July 1, 2017, eliminating the requirement for owners to register tanks with the Department of Environmental Management.

• Repeals related definitions in IC 13-11-2 for "above ground storage tank," "agribusiness," "critical zone of concern," "disruption," and "liquid" that were specific to the above ground storage tank reporting law.

• Authorizes public water system operators to gather information from potential contamination sources for developing surface water quality threat minimization and response plans, with limited public records exceptions depending on circumstances.

• Requires public water system operators to develop, maintain, and update surface water quality threat minimization and response plans identifying critical intake facilities, potential threats, risk assessments, communication plans, and incident response procedures, with plans submitted to the department upon development and every five years thereafter.

• Directs the legislative council to assign an interim study to the environmental affairs committee during 2017 to examine above ground storage tank information availability, a potential central repository for tank data, and whether current information is sufficient to protect public water supplies.