Wyoming Department of Environmental Quality · [email protected]

January 22, 2026 at 3:01 PM

Public Notice: Categorical Exclusion Determination, City of Buffalo, WY, Microfiltration System Module Replacement Project

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January 22, 2026 at 3:01 PM

Public Meeting, City of Laramie, WY, Lead Service Line Project-Phase I

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January 22, 2026 at 3:01 PM

Public Notice: Categorical Exclusion Determination, City of Buffalo, WY, Burritt Avenue Water & Sewer Main Replacement Project

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January 21, 2026 at 5:51 PM

PUBLIC NOTICE OF AMENDMENT REQUEST TO THE DEQ INDUSTRIAL SITING PERMIT FOR THE PROJECT WEST SOLUTION MINE AND SODA ASH PLANT ("PROJECT"); DEQ/ISC 23-02

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January 16, 2026 at 3:01 PM

WYPDES January PN

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January 16, 2026 at 3:01 PM

Public Notice: Public Meeting, Town of LaGrange, WY, LaGrange Water Project

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January 15, 2026 at 3:01 PM

Public Notice: Categorical Exclusion Determination, Town of Kaycee, Wyoming, Tank Rehabilitation & Meter Replacement Project

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January 15, 2026 at 3:01 PM

Public Notice: Categorical Exclusion Determination, Town of Thermopolis, WY, Lead Service Line Investigation & Replacement

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January 14, 2026 at 8:43 PM

PUBLIC NOTICE: Additional Public Comment Opportunity--Section 401 Water Quality Certification Request for the Seminoe Pumped Storage Project

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January 14, 2026 at 5:10 PM

Findings from the Lonesome Lake and Big Sandy Lake Fecal Bacteria Evaluation

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January 14, 2026 at 3:01 PM

Proposed Permit - Basin Electric Power Cooperative Laramie River Station

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January 8, 2026 at 11:01 PM

Public Notice: Public Meeting, Squaw Creek Water District, WY, SCWD Transmission Line Replacement Project

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January 8, 2026 at 3:01 PM

Kemmerer Operations, LLC, Area Bond Release, PT0379, TFN 7 2/293

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January 8, 2026 at 3:01 PM

Public Notice: Public Meeting, City of Green River, WY, Teton Water Tank Rehabilitation Project

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January 7, 2026 at 9:01 PM

Public Notice: Public Meeting, Squaw Creek Water District, WY, SCWD Transmission Line Replacement Project

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January 7, 2026 at 3:02 PM

Public Notice: Categorical Exclusion Determination, Town of Afton, WY, South Highway 89 Waterline Replacement Project

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January 7, 2026 at 3:01 PM

Rocky Mountain Coal Co LLC, Permit Renewal, PT0264, TFN 7 6/289

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January 6, 2026 at 3:02 PM

Reminder: Public Water System Notice--Lead Service Line Policy Update

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January 5, 2026 at 10:33 PM

PUBLIC NOTICE OF AMENDMENT REQUEST TO THE WDEQ INDUSTRIAL SITING PERMIT FOR THE SETTLER WIND FARM PROJECT; DEQ/ISC 23-04

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January 2, 2026 at 6:35 PM

Correction: Public Notice: Section 401 Water Quality Certification Request for the Seminoe Pumped Storage Project

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January 2, 2026 at 4:55 PM

Correction: Public Notice: Section 401 Water Quality Certification Request for the Seminoe Pumped Storage Project

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January 2, 2026 at 3:01 PM

Public Notice: Section 401 Water Quality Certification Request for the Seminoe Pumped Storage Project

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December 29, 2025 at 3:01 PM

Categorical Exclusion Determination, Deike Estates Improvement & Service District, Water System Improvement Project

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December 25, 2025 at 3:01 PM

Public Notice: Public Meeting, Town of Dubois, WY, Lead Service Line Investigation Project

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December 23, 2025 at 6:01 PM

Public Notice: Categorical Exclusion Determination, City of Riverton, WY, West Main Street Waterline Replacement Project

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December 22, 2025 at 10:48 PM

Public Notice of Approved Amendment to the WDEQ Industrial Siting Permit for the CK Gold Project; Wyoming Industrial Siting Council; DEQ/ISC 22-07

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December 22, 2025 at 10:42 PM

Public Water System Notice: Lead Service Line Policy Update

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December 22, 2025 at 9:31 PM

Public Notice of Approved Amendment to the WDEQ Industrial Siting Permit for the Cowboy Solar I and II Project; DEQ/ISC 23-03

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December 20, 2025 at 3:01 PM

Air Quality Advisory Board Meeting - January 27, 2026

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December 19, 2025 at 3:01 PM

2026 Solid Waste Training Series

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December 18, 2025 at 3:29 PM

Notice of Revised Guidelines Available for Bond Calculations - 12 and 12A

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December 18, 2025 at 3:02 PM

Public Notice: Public Meeting, Town of Encampment, WY, Wildfire Risk Reduction for the Town of Encampment’s Municipal Watershed Project

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December 18, 2025 at 3:01 PM

Wyoming Environmental Quality Council Notice of Intent to Adopt Rules

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December 17, 2025 at 3:01 PM

Proposed Discharge of Dredged or Fill Material to Fremont Lake

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December 17, 2025 at 3:01 PM

Public Notice: Reclassification of Groundwater, Lost Creek ISR Project

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December 16, 2025 at 7:55 PM

Public Notice of Permit Approval of the Dry Piney Helium and Carbon Sequestration Project

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December 15, 2025 at 6:43 PM

Reminder of Opportunity to Observe the Continued Contested Case Proceedings of the Chugwater Energy Project Before the Wyoming Industrial Siting Council - Docket Number DEQ/ISC 25-01

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December 13, 2025 at 3:01 PM

Contura Coal West, LLC, Permit Renewal for Eagle Butte Mine, PT0428, TFN 7 6/290

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December 13, 2025 at 3:01 PM

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December 13, 2025 at 3:01 PM

Wyodak Resources Development Corp., Permit Renewal for Wyodak Mine, PT0232, TFN 7 5/280

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December 10, 2025 at 3:01 PM

Proposed Discharge of Dredged or Fill Material to Waters in the Fish Creek Drainage

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December 6, 2025 at 3:01 PM

Notice of Phase 3 Bond Release - Peabody Caballo Mining, LLC, PT0433, TFN 7 2/288

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December 4, 2025 at 11:31 PM

Notice of Land Quality Division Advisory Board Meeting - December 17, 2025, 10:00 am (MST)

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December 4, 2025 at 3:16 PM

Elk Basin #2 Renewal Application

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December 4, 2025 at 3:05 PM

American Colloid Company, Mine Permit Amendment, PT0620, TFN 6 2/152

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December 4, 2025 at 3:01 PM

Public Notice: Public Meeting, Town of Kaycee, WY, Lead Service Line Investigation Project, Tank Rehabilitation Project, and Meter Replacement Project

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December 4, 2025 at 3:01 PM

10.036 North Big Horn #2 Landfill Lifetime Permit Application Technically Adequate

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December 3, 2025 at 5:49 PM

Wyoming DEQ adds mobile air quality monitor to Rawlins

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December 3, 2025 at 3:03 PM

Public Notice: Categorical Exclusion Determination, Deike Estates Improvement & Service District, Water System Improvement Project

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December 2, 2025 at 7:20 PM

Air Quality Advisory Board Meeting - December 15, 2025 - CANCELLED

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