Wastewater Treatment

water treatment plantThe City of Delphi’s Wastewater Department is responsible for the effective treatment of wastewater transported from residences and businesses through distribution lines to the city’s wastewater treatment plant on the southwest edge of town. Included in the duties of department employees are the maintenance of the wastewater plant itself, maintenance on seven lift stations, upkeep and repair of several miles of sewer lines.

The department also monitors the wastewater treatment system and bio-solids disposal, and makes regular reports to Indiana Department of Environmental Management and U.S. Environmental Protection Agency. Department employees handle all situations that arise when major rain events or breakdowns occur that adversely affect the system.

Once waste arrives at the treatment plant, it is handled according to Indiana Department of Environmental Management and Environmental Protection Agency guidelines. Safe, treated effluent is then discharged. Delphi's plant is a Class III major facility and requires the main operator to possess a Class III State of Indiana certification license. Twenty continuing education units are required every two years to keep the license valid.

To contact the City of Delphi Wastewater Office, call 765-564-2313 or e-mail This email address is being protected from spambots. You need JavaScript enabled to view it..

Paying Water and Wastewater Bills

Water and Wastewater bills may be paid in person during office hours:
7:30 am - 4:30 pm Monday, Tuesday, Thursday, Friday; Wednesday 7:30 am - 12:00 noon; closed Saturday, Sunday, and holidays.
An after-hours depository is located at the City Building for your convenience.

Water, wastewater, and sanitation payments are due by the 15th of the month. Penalties are added after the 15th as follows:
  • Water: 10% of first $3.00, 3% of balance over $3.00
  • Wastewater: 10% of total wastewater charge
Note: If water and wastewater bills are not paid by the 25th of the month, water will be disconnected. A $50 charge will be assessed for reconnection.
    • Mayor's Office

      City Building
      201 S. Union St.
      Delphi, Indiana 46923

      Anita Werling, Mayor
      Marilyn McKnight, Assistant
      Phone: (765)-564-2097

      Clerk/Treasurer's Office

      City Building
      201 S. Union St.
      Delphi, Indiana 46923

      Leanne Aldrich, Clerk/Treasurer
      Phone: (765)-564-2097
    • Departments

      EMERGENCY 9-1-1
      Fire:  (765) 564-0034
      Parks:  (765) 564-2353
      Police:  (765) 564-2345
      Streets:  (765) 564-2353
      Wastewater:  (765) 564-2313
      Water Works: (574) 564-3944
  • Location

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