Rules
- Indiana Wellhead Protection Rule (327 IAC 8.4-1)
- Ground Water Quality Standards (327 IAC 2-11)
- Wellhead Protection Provisions in Other Rules [PDF]
Wellhead Protection Program
- IDEM Wellhead Protection Program Guidance Document [PDF]
- Phase I
- Phase II
- Phase II Five Year Update
Local Ordinances
- U.S. EPA Methods for Local Source Water Protection
- U.S. EPA Groundwater Protection Overlay District Example Ordinance [PDF]
- U.S. EPA Model Surface Water Ordinance [PDF]
Hoosier Water Guardian
Source Water Proximity Determination
Drinking Water Information
- Drinking Water Viewer
- IDEM Fact Sheets
- Arsenic
- Lead in Drinking Water: Information for Customers
- Follow-up Steps for Schools with Lead and/or Copper Sampling Results above the Action Level
- Well Disinfection
- Methane Gas and Your Water Well [PDF]
- Smart Lawn Care. Safer Drinking Water. From the Grass to the Tap. [PDF]
- IDEM Per- and Polyfluoroalkyl Substances (PFAS)