Municipal NPDES Permits

Permit Information

Permit Applications and Instructions

  • Municipal Application Standard Form A [PDF] (Contact the Municipal NPDES Permits section at 317-232-8670)
    • This form is required from municipally-owned facilities with a design flow of greater than 1 MGD and/or a PE of greater than 10,000.
    • Standard Form A Supplement [DOC] (Currently Unavailable)
  • Semi-Public and Minor Municipal Application Forms (available on the IDEM Forms page)
    • For all municipally owned facilities with a design flow of less than 1 MGD and/or a PE of less than 10,000; Any facility not municipally, state or federally owned (i.e. mobile home parks, schools, restaurants, etc.); or a facility owned by a federal agency (military-owned installation, national park, federal penitentiary, etc.
  • Application for Preliminary Effluent Limitations [DOC] (now available on the IDEM Forms page)
  • Application Fee Information
  • Potentially Affected Persons Form (available on the IDEM Forms page)

Permit Public Notices

Permit Guidance Documents