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Proposed Discharge of Dredged or Fill Material to Cottonwood Creek

Due: 4/15/2026 @ 05:00 PM (US/Mountain)

Additional Information Comment Now

Type: Permit Status: Open for Comment Division: Water Quality County: Teton

Black Butte Coal Company, Area Bond Release, PT0467, TFN 7 4/295

Due: 4/17/2026 @ 05:00 PM (US/Mountain)

View Public Notice Comment Now

Type: Permit Status: Open for Comment Division: Land Quality County: N/A

Black Butte Coal Company, Area Bond Release for 382 Ac, PT0467, TFN 7 1/295

Due: 4/17/2026 @ 05:00 PM (US/Mountain)

View Public Notice Comment Now

Type: N/A Status: Open for Comment Division: Land Quality County: N/A

Guernsey Tank Terminal (F000300/A0019196)

Due: 4/17/2026 @ 05:00 PM (US/Mountain)

Comment Now

Type: Permit Status: Open for Comment Division: Air Quality County: Platte

Guernsey Station (F000662/A0018744)

Due: 4/17/2026 @ 05:00 PM (US/Mountain)

Comment Now

Type: Permit Status: Open for Comment Division: Air Quality County: Platte

Dillon Billings Pad (F032469/A0019279)

Due: 4/17/2026 @ 05:00 PM (US/Mountain)

Comment Now

Type: Permit Status: Open for Comment Division: Air Quality County: Converse

Public Notice of Voluntary Cleanup - Spic and Span Laundromat, Laramie, Albany County, WY

Due: 4/18/2026 @ 05:00 PM (US/Mountain)

Public Notice Comment Now

Type: Permit Status: Open for Comment Division: Solid & Hazardous Waste County: Albany

Call Freedom Pit (F032429/A0019081)

Due: 4/20/2026 @ 05:00 PM (US/Mountain)

Comment Now

Type: Permit Status: Open for Comment Division: Air Quality County: Lincoln

Draft Renewal Operating Permit Tallgrass Interstate Gas Transmission LLC, Casper Compressor Station

Due: 4/20/2026 @ 05:00 PM (US/Mountain)

Comment Now

Type: Permit Status: Open for Comment Division: Air Quality County: Natrona

Casper Station (F000663/A0018742)

Due: 4/20/2026 @ 05:00 PM (US/Mountain)

Comment Now

Type: Permit Status: Open for Comment Division: Air Quality County: Natrona

Draft UIC Permit: The Restaurant at Remington Ranch, Class V, UIC-2025-0050v1.0

Due: 4/20/2026 @ 05:00 PM (US/Mountain)

Additional Information Comment Now

Type: Permit Status: Open for Comment Division: Water Quality County: Park

UIC General Permit Termination: General Permits 5C5-1, 5C5-2, and 5C5-3, Coalbed Methane Injection Facilities

Due: 4/20/2026 @ 05:00 PM (US/Mountain)

Additional Information Comment Now

Type: Permit Status: Open for Comment Division: Water Quality County: Statewide

Draft WYPDES Permit: AMVC Wyoming Site 40, AMVC Production, WY0096431

Due: 4/20/2026 @ 11:59 PM (US/Mountain)

Draft Permit Comment Now

Type: Permit Status: Open for Comment Division: Water Quality County: Sweetwater

Draft WYPDES Permit: Simon Oil, East Tisdale Field, Morton Lease, WY0095877

Due: 4/20/2026 @ 11:59 PM (US/Mountain)

Draft Permit Comment Now

Type: Permit Status: Open for Comment Division: Water Quality County: Sweetwater

Draft WYPDES Permit: East Tisdale Field-Morton Lease, Green River-Rock Springs JPB WP, WY0000027

Due: 4/20/2026 @ 11:59 PM (US/Mountain)

Draft Permit Comment Now

Type: Permit Status: Open for Comment Division: Water Quality County: Sweetwater

Draft WYPDES Permit: Town of Pine Haven, Pinehaven WWTP, WY0095907

Due: 4/20/2026 @ 11:59 PM (US/Mountain)

Draft Permit Comment Now

Type: Permit Status: Open for Comment Division: Water Quality County: Sweetwater

Draft WYPDES Permit: US SFR Owner, Kemmerer Training Center, WY0097036

Due: 4/20/2026 @ 11:59 PM (US/Mountain)

Draft Permit Comment Now

Type: Permit Status: Open for Comment Division: Water Quality County: Sweetwater

Draft WYPDES Permit: Wright Water & Sewer District, Wright Wastewater Treatment, WY0025992

Due: 4/20/2026 @ 11:59 PM (US/Mountain)

Draft Permit Comment Now

Type: Permit Status: Open for Comment Division: Water Quality County: Sweetwater

Draft WYPDES Permit: Silver Eagle Refining, Silver Eagle Refinery, WYS000014

Due: 4/20/2026 @ 11:59 PM (US/Mountain)

Draft Permit Comment Now

Type: Permit Status: Open for Comment Division: Water Quality County: Uinta

Caballo CB9 EE Demo

Due: 4/23/2026 @ 05:00 PM (US/Mountain)

Comment Now

Type: Special Project Status: Open for Comment Division: Air Quality County: Statewide

Public Comment Period for Methods for Determining Attainment of Surface Water Quality Standards: Basis and Overall Approach

Due: 4/24/2026 @ 05:00 PM (US/Mountain)

Additional Information Comment Now

Type: Special Project Status: Open for Comment Division: Water Quality County: Statewide

Air Quality Advisory Board Meeting - April 28, 2026

Due: 4/28/2026 @ 05:00 PM (US/Mountain)

Comment Now

Type: Rulemaking Status: Open for Comment Division: Air Quality County: Statewide

Lizzy (F031376/A0018973)