Office of Water Quality

IDEM's Office of Water Quality's mission is to monitor, protect and improve Indiana's water quality to ensure its continued use as a drinking water source, habitat for wildlife, recreational resource and economic asset. The Office achieves this by assessing surface and ground water quality, regulating drinking water supplies and wastewater treatment facilities, protecting watersheds and wetlands and providing outreach and assistance to the regulated community and the public while supporting environmentally responsible economic development.

• 303(d) Impaired Waterbodies
• 401 Water Quality Certification
• Compliance
• Integrated Water Monitoring and Assessment - formerly 305(b)
• Operator Certification
  • Drinking Water
  • Wastewater
• Permitting
• Source Water/Wellhead Protection
• Total Maximum Daily Load Program
• Water Quality Assessment
• Watershed Planning
• Wet Weather - CSO & Storm Water

What's New

• Antidegradation Stakeholder Meeting: 10 am to 5 pm, April 29th, 2008
  • Meeting Agenda - 04/29/2008 [PDF]
  • Meeting Summary - 04/29/2008 [PDF]
  • IDEM Overview of March 14, 2008 Draft Antidegradation Rule [PPT]
  • Antidegradation Implementation: Federal Framework -and-Indiana Process [PPT]
  • Key Antidegradation Issue for Regulated Community [PPT]
  • Antidegradation Rule: Major Issues of Concern [PPT]
  • The "Necessary Test" (Draft Sections 8-10) [PPT]
  • Designing De Minimis [PPT]
  • Antideg and OSRWs [PPT]
  • Antidegradation Implementation Conceptual Flowchart [PDF]
• April 9, 2008: Natural Resources Commission's Advisory Council will to discuss creek rock mining, cumulative effects under the flood control act, amendments to the definition of 'lake,' amendments to pier and marina regulations
• In the Matter of the Formation of the Lakeland Regional Sewer District: Findings of Fact and Recommended Order of the Hearing Officer [PDF]
• IDEM has released a new fact sheet concerning the regulation of Culverts and Stream Crossings
• Amended Petition of Morgan Co., IN to Establish the Morgan Co. Regional Sewer District
• New Indiana Storm Water Quality Manual for Rule 5 (Construction) available online
• The Hoosier Water Guardian program is voluntary for communities that have an approved Phase I Wellhead Protection Plan. Based upon a set of evaluation criteria, IDEM staff evaluate communities to determine qualification for the Hoosier Water Guardian Award.
• New Watersheds Public Service Announcement viewable online
• Wastewater Operators can now renew their certification license online at http://extranet.in.gov/mylicense. Online renewal is available 24 hours a day, 7 days a week. Please visit the certification homepage

Contact: (317) 232-8670

Apr 21 2008
State provides assistance to local wastewater treatment plant (view)

Apr 11 2008
State provides assistance to local wastewater treatment plant (view)

Jun 02 2008
NPDES - Public Notice No. 2008 - 5A - RD (view)

May 30 2008
NPDES - Public Notice No. 2008 - 4I - RD (view)

May 27 8:00 AM
NPDES - Public Notice No. 2008 - 4G - RD (view)

May 21 2008
401 Water Quality Certification Program - Public Notice No. 2008-181-84-MTM-A (view)

May 21 2008
401 Water Quality Certification Program - Public Notice No. 2008-184-12-EMP-A (view)

May 20 2008
401 Water Quality Certification Program - Public Notice No. 2008-114-82-JWR-A (view)

May 20 2008
401 Water Quality Certification Program - Public Notice No. 2008-196-51-JWR-A (view)

May 16 2008
NPDES - Public Notice No. 2008 - 4E – RD (view)

May 12 2008
401 Water Quality Certification Program - Public Notice No. 2008-165-45-MTM-A (view)

May 12 2008
401 Water Quality Certification Program - Public Notice No. 2008-127-64-MTM-A (view)

May 07 2008
401 Water Quality Certification Program - Public Notice No. 2008-099-57-BCB-A (view)

May 07 2008
NPDES - Public Notice No. 2008 - 4A – RD (view)

May 14 2008 1:30 PM
Water Pollution Control Board Meeting (view)