To ensure protection of the sanitary sewer system and the two (2) Advanced Wastewater Treatment (AWT) plants in Indianapolis, CWA Authority, Inc. (Authority) regulates the discharge of industrial wastewater into the collection system. The Authority is responsible for the implementation of the federal Industrial Pretreatment Program (IPP) in Indianapolis. The following documents provide the legal authority and background for the program.
To report a spill into the sewer system, please call (317) 402-8636.
EPA Approval of CWA Authority Pretreatment Program letter
Enforcement Response Plan 2017
Indianapolis NPDES Permit IN0023183 Final 2018
Wastewater rates
CWA Resolution 1-2011
CWA Resolution 2-2011
CWA Resolution 3-2011
Dental Amalgam Compliance Report
Emergency Discharge Application
Industrial Discharge Permit Application
Wastewater Survey
Liquid Waste Hauler Permit Application
Special Discharge Application
CWA Authority Pretreatment Delegation application_26 November 2012 (with Local Limits Evaluation)
CWA Authority Pretreatment Delegation Request Cover Letter
Indianapolis NPDES Permit IN0023183 Final 2007
Local Limits 2012
Indianapolis NPDES Permit IN0023183 Final 2013
NPDES modification to CWA Authority IN0028183
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