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Public Notices: Northwest Indiana

The Public Notices for the Northwest Region cover the counties of Jasper, Lake, LaPorte, Newton, and Porter.

Updated: 11/13/2025

Name or Facility Type of Notice/Event Publication Dates Public Comment? Additional Information
Multi-County Notices
No current public notices.
Jasper
Trail Tree Inn Wastewater Treatment PlantNPDES Final Permit Public Notice [PDF]11/07/2025 - 11/25/2025NoPermit Number: IN0041904

Project Manager: Eilerman, Nicholas
Talbert Manufacturing, Inc.Drinking Water Construction Permit Public Notice [PDF]10/09/2025 - 11/08/2025YesPermit Number: 12994
 
IDEM ID Number: 2370834
 
Corps of Engineers ID Number: 60018369
 
Project Manager: Prater, Matthew
Lake
Indiana American Water NorthwestDrinking Water Construction Permit Public Notice [PDF]11/13/2025 - 12/13/2025YesPermit Number: 13014
 
IDEM ID Number: 5245015
 
Corps of Engineers ID Number: 12400144
 
Project Manager: Prater, Matthew
Jupiter Aluminum CorporationNotice of 30-Day Period of Public Comment for Draft Air Permit [PDF]11/12/2025 - 12/12/2025YesPermit Number: 089-48927-00201
Silgan Containers Manufacturing Corp.Notice of 30-Day Period of Public Comment for Draft Air Permit [PDF]11/10/2025 - 12/10/2025YesPermit Number: 089-49456-00202
Town of Winfield Wastewater Treatment PlantNPDES Draft Permit Public Notice [PDF]11/04/2025 - 12/04/2025YesPermit Number: IN0058343

Project Manager: Daniels, Kendall E
Town of Lowell Wastewater Treatment PlantNPDES Final Permit Public Notice [PDF]10/31/2025 - 11/18/2025NoPermit Number: IN0023621

Project Manager: Gates, Alexandra K
Cargill, Inc.Notice of 30-Day Period of Public Comment for Draft Air Permit [PDF]10/30/2025 - 11/29/2025YesPermit Number: 089-49254-00203
Deep River Park – Big Maple Lake Drinking Water Construction Permit Public Notice [PDF]10/29/2025 - 11/28/2025YesPermit Number: 13008
 
IDEM ID Number: 2450086
 
Corps of Engineers ID Number: 1641
 
Project Manager: Prater, Matthew
Carmeuse Lime, Inc.Notice of 30-Day Period of Public Comment for Draft Air Permit [PDF]10/21/2025 - 11/20/2025YesPermit Number: 089-49275-00112 & 089-49334-001112
Indiana Harbor and Canal Confined Disposal FacilityNPDES Final Permit Public Notice [PDF]10/21/2025 - 11/20/2025YesPermit Number: IN0062511

Project Manager: Warrener, Matt
Enbridge Energy, Limited Partnership - Griffith TerminalNotice of 30-Day Period of Public Comment for Draft Air Permit [PDF]10/17/2025 - 11/16/2025YesPermit Number: 089-49257-00497
Providence at Summer TreeState Isolated Wetland Individual Permit Public Notice [PDF]10/09/2025 - 10/30/2025YesIDEM ID Number: 2025-795-45-MTM-IWIP

Project Manager: MAUPIN, MARTY
W.R. Grace – Conn. Grace DivisionNotice of 30-Day Period of Public Comment for Draft Air Permit [PDF]10/08/2025 - 11/07/2025YesPermit Number: IN0000329

Project Manager: Wray, Jodi M
La Porte
Lavender Fields Holdings LLCNotice of 30-Day Period of Public Comment for Draft Air Permit [PDF]11/13/2025 - 12/13/2025YesPermit Number: 091-49561-00195
Westville Water DepartmentDrinking Water Construction Permit Public Notice [PDF]10/29/2025 - 11/28/2025YesPermit Number: 13007
 
IDEM ID Number: 5246029
 
Corps of Engineers ID Number: 10302417
 
Project Manager: Prater, Matthew
INDOT 1900029 US 421 over UNT to West Branch Trail Creek Small Structure Project Section 401 Water Quality Certification Public Notice [PDF]10/28/2025 - 11/18/2025YesIDEM ID Number: 2025-852-46-GCW-WQC

Project Manager: Wrin, Graham C
INDOT 1900028 US 421 over East Arm Little Calumet River Structure ProjectSection 401 Water Quality Certification Public Notice [PDF]10/28/2025 - 11/18/2025YesIDEM ID Number: 2025-851-46-GCW-WQC

Project Manager: Wrin, Graham C
La Porte Water WorksDrinking Water Construction Permit Public Notice [PDF]10/28/2025 - 11/27/2025YesPermit Number: 13006
 
IDEM ID Number: 5246017
 
Corps of Engineers ID Number: 11500308
 
Project Manager: Prater, Matthew
Hitachi Global Air Power US, LLCNotice of 30-Day Period of Public Comment for Draft Air Permit [PDF]10/24/2025 - 11/23/2025YesPermit Number: 091-49378-00017
Newton
Lincoln Elementary School Wastewater Treatment PlantNPDES Final Permit Public Notice [PDF]11/13/2025 - 12/01/2025NoPermit Number: IN0030503

Project Manager: Daniels, Kendall E
North Newton Jr. Sr. High School Wastewater Treatment PlantNPDES Final Permit Public Notice [PDF]11/07/2025 - 11/25/2025NoPermit Number: IN0031143

Project Manager: Daniels, Kendall E
Porter
Town of Burns Harbor and Cleveland-Cliffs Burns Harbor LLC Sanitary Treatment PlantNPDES Draft Permit Public Notice [PDF]11/13/2025 - 12/15/2025YesPermit Number: INJ060801

Project Manager: Eilerman, Nicholas
MonoSol LLC – Duneland PlantNPDES Final Permit Public Notice [PDF]10/14/2025 - 11/03/2025NoPermit Number: INP000651

Project Manager: Marshall, Riley E

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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Rules and Regulatory Notices

IDEM regularly notifies the public about rulemaking activities via official public notices in the Indiana Register. Relevant information, public hearing dates, and agency points of contact are included in the notices.

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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.