| Name or Facility | Type of Notice/Event | Publication Dates | Public Comment? | Additional Information |
|---|---|---|---|---|
| Multi-County Notices | ||||
| No current public notices. | ||||
| Jasper | ||||
| NIPSCO R.M. Schahfer Generating Station | 09/04/2026 - 10/04/2026 | Yes | Permit Number: IN0053201 Project Manager: Etter, Heidi E Virtual Public Hearing: Wednesday, October 7, 2026 5:00 p.m. ET/4:00 p.m. CT (See Public Hearing Notice for connection details) |
|
| EM Materials, LLC | Notice of 30-Day Public Comment Period for Draft Air Permit [PDF] | 09/02/2026 - 10/02/2026 | Yes | Permit Number: 073-50318-00040 |
| Windy Ridge Dairy, LLC | Notice of 30-Day Public Comment Period for Draft Air Permit [PDF] | 08/27/2026 - 09/26/2026 | Yes | Permit Number: 073-50482-00044 |
| Riverbox Wastewater Treatment Plant | NPDES Final Permit Public Notice [PDF] | 08/27/2026 - 09/14/2026 | No | Permit Number: IN0058823 Project Manager: Hanko, Jay |
| Smith Ready Mix Inc. | Notice of 30-Day Public Comment Period for Draft Air Permit [PDF] | 08/10/2026 - 09/09/2026 | Yes | Permit Number: S777-50395-05624 |
| Lake | ||||
| Unilever Manufacturing (US), Inc. | Notice of 30-Day Public Comment Period for Draft Air Permit [PDF] | 09/09/2026 - 10/09/2026 | Yes | Permit Number: 089-50437-00229 |
| Lake George Canal - East | 401 Water Quality Permit Public Notice [PDF] | 08/28/2026 - 09/18/2026 | Yes | IDEM ID Number: WQC001511 Project Manager: Wrin, Graham C |
| Hammond Sanitary District | Notice of 30-Day Public Comment Period for Draft Air Permit [PDF] | 08/26/2026 - 09/25/2026 | Yes | Permit Number: 089-50349-00502 |
| Midwest Aerospace, LLC | Notice of 30-Day Public Comment Period for Draft Air Permit [PDF] | 08/25/2026 - 09/24/2026 | Yes | Permit Number: 089-49982-00713 |
| Indiana American Water Lowell/RTE 2 Commercial Subdivision | Drinking Water Construction Permit Public Notice [PDF] | 08/13/2026 - 09/14/2026 | No | Permit Number: 13137 IDEM ID Number: 5245029 Corps of Engineers ID Number: 11100293 Project Manager: Prater, Matthew |
| Indiana American Water - Lowell/Ironwood Phase 1 | Drinking Water Construction Permit Public Notice [PDF] | 08/12/2026 - 09/11/2026 | No | Permit Number: 13138 IDEM ID Number: 5245029 Corps of Engineers ID Number: 12100681 Project Manager: Prater, Matthew |
| Lakeshore Terminal Railroad, LLC | Notice of 30-Day Public Comment Period for Draft Air Permit [PDF] | 08/10/2026 - 09/09/2026 | Yes | Permit Number: 089-50463-00732 |
| La Porte | ||||
| Bluhm County Park Stream and Wetland Restoration Site | Section 401 Water Quality Certification Public Notice [PDF] | 08/31/2026 - 09/21/2026 | Yes | IDEM ID Number: WQC001508 Corps of Engineers ID Number: LRE-2023-00699-146 Project Manager: Cohen, L David |
| Kingsbury Utility Corp. | 08/21/2026 - 09/20/2026 | Yes | Permit Number: IN LA 000732 Project Manager: O'Connell, Morrighan |
|
| EZ Liquid Solutions | 08/18/2026 - 09/17/2026 | Yes | Permit Number: IN LA 000934 Project Manager: O'Connell, Morrighan |
|
| Newton | ||||
| No current public notices. | ||||
| Porter | ||||
| Valparaiso Dept. of Water Works VCU Water System Upgrades |
Drinking Water Construction Permit Public Notice [PDF] | 09/03/2026 - 10/02/2026 | No | Permit Number: 13163 IDEM ID Number: 5264029 Corps of Engineers ID Number: 12600872 Project Manager: Prater, Matthew |
| Great Lakes Stevedoring, LLC dba Metro Ports | Notice of 30-Day Period of Public Comment for Draft Air Permit [PDF] | 08/28/2026 - 09/27/2026 | Yes | Permit Number: 127-49208-00156 |
| Valparaiso Dept. of Water Works Raw Water Main Project |
Drinking Water Construction Permit Public Notice [PDF] | 08/18/2026 - 09/17/2026 | No | Permit Number: 13158 IDEM ID Number: 5264029 Corps of Engineers ID Number: 10000097 Project Manager: Prater, Matthew |
| Jet Corr, Inc./Pratt Paper (IN), LLC | Notice of 30-Day Public Comment Period for Draft Air Permit [PDF] | 08/17/2026 - 09/16/2026 | Yes | Permit Number: 127-50396-00094 & 127-50401-00094 |
| Beemsterboer Slag Corp., contractor of Cleveland-Cliffs Burns Harbor, LLC | Notice of 30-Day Public Comment Period for Draft Air Permit [PDF] | 08/10/2026 - 09/09/2026 | Yes | Permit Number: 127-50184-00116 & 127-50498-00116 |
| Valparaiso Dept. of Water Works Well Construction |
Drinking Water Construction Permit Public Notice [PDF] | 08/06/2026 - 09/07/2026 | No | Permit Number: 13155 IDEM ID Number: 5264029 Corps of Engineers ID Number: 10100303 Project Manager: Prater, Matthew |
This page is designed to provide public access to all agency public notices for this region as required by statute or rule including: permitting, rulemaking, meeting and hearing notices. Click highlighted links to view additional information related to the notice. Unless otherwise noted, contact information is included on the notices.
The IN.gov News and Events Calendar provides information on public meetings that do not require public notice.
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A nonrule policy document (NPD) is intended to clarify for the public IDEM's interpretation of an environmental statute or rule. IDEM Nonrule Policies are not intended by the agency to have the effect of law, however, per Indiana Code 13-14-1-11.5, they are made available for public comment on the agency internet website for at least 45 days. After the comment period ends, the appropriate state environmental board(s) are briefed, and 30 days later the NPD(s) become effective and are sent for publication in the Indiana Register.
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The Citizens’ Guide to IDEM describes the agency’s permitting and environmental cleanup programs. The guide details how citizens can participate when IDEM makes decisions about issuing permits, conducting cleanup actions, preparing environmental reports and plans, and writing environmental rules.