The Water Permitting Branch serves residents and businesses located in Indiana by issuing NPDES and construction permits to sources that discharge wastewater to stream, lakes, and other water bodies. The Municipal Permits Section, including the Combined Sewer Overflow (CSO) Program, and Industrial Permits Section issue NPDES permits to point source discharges in accordance with the federal Clean Water Act (CWA), federal laws, and state laws and regulations. The Permits Administration Section administers the non-storm water NPDES general permits program. The Facility Construction and Engineering Support Section issues construction permits related to wastewater treatment plant and sewer construction. The Drinking Water Permit Section issues construction permits for drinking water wells and treatment.
Applicable State Forms are available on the IDEM Agency Forms page.
National Pollutant Discharge Elimination System (NPDES) Permits
- NPDES Program Overview
- Permits on Notice and Draft Permit Information
- IDEM Permit Appeal Procedures
- Wastewater Compliance
- Monthly Reporting State Forms (See: IDEM Agency Forms)
Operational Permit for Industrial Facilities
Streamlined Mercury Variance (SMV)
- Municipal SMV Application Form, Overview, and Instructions - State Form 52112 (See: IDEM Agency Forms)
- Industrial SMV Application Form, Overview, and Instructions - State Form 52111 (See: IDEM Agency Forms)
- SMV FAQs [DOC]
List of NPDES Permits (Updated Quarterly)
The NPDES permits are tracked within the U.S. EPA ICIS database. This is a list in Excel format of all NPDES permit records within the ICIS system for Indiana. It is broken into multiple tabs (22) with the first tab containing all records, then the subsequent tabs containing subsets of specific groups of records commonly of interest. Detailed information including maps, inspections, compliance, and reported effluent data is available on the U.S. EPA site.