Governing Law and Regulations
Indiana Department of Environmental Management (IDEM) Office of Water Quality
Indiana Department of Natural Resources (DNR) Division of Water
Indiana State Department of Health (ISDH) Environmental Public Health Division Water Supply Program
U.S. Army Corps of Engineers (Corps)
U.S. Environmental Protection Agency (EPA) Region 5
See national section for basic information and federal regulations.
Comparison: State vs. Federal
• Rules. Indiana is authorized to administer the National Pollutant Discharge Elimination System (NPDES) permit program and to issue individual and general NPDES permits to specific dischargers. The state also has general permitting authority to cover stormwater discharges.
The state generally follows the federal regulations under the Safe Drinking Water Act (SDWA) in order to protect state potable water supplies. For additional information about the SDWA, see the national section DRINKING WATER.
• Administration and enforcement. The Indiana Department of Environmental Management's (IDEM) Office ...