Informational Webinar Regarding Proposed Revisions to Water Quality Rules, Chapter 1 and Chapter 2

Wyoming Department of Environmental Quality  | view as a webpage

Wyoming Department of Environmental Quality

Public Notice: Informational Webinar Regarding Proposed Revisions to Water Quality Rules, Chapter 1 and Chapter 2

The Water Quality Division will host an informational webinar on Tuesday, April 30, 2024, from 10 AM to 11:30 AM to provide an overview and answer questions related to proposed revisions to Water Quality Rules, Chapter 1, Wyoming Surface Water Quality Standards, and Chapter 2, Permit Regulations for Discharges to Wyoming Surface Waters. Interested parties may contact Gina Thompson at or (307) 777-7343 for information on how to join the webinar via telephone or Zoom. Individuals may contact Lindsay Patterson at (307) 777-7079 for questions regarding the Water Quality Rules revisions.

The webinar relates to an April 11, 2024, public notice that announced a Water and Waste Advisory Board (WWAB) meeting to be held on June 13, 2024, at 9:00 a.m. virtually via Zoom and in person at the Department of Environmental Quality Casper Field Office Conference Room, 444 West Collins Dr., Suite 1400 Casper, WY 82601. Additional details are located at under the “Upcoming Meeting” tab.

The proposed Chapter 1 revisions (1) fulfill the federal requirements at 40 CFR § 131.20, (2) restructure and align requirements with state and federal law, regulations, and guidance; (3) revise designated uses and remove the designated use classification system; and (4) provide minor updates to specific water quality criteria. The proposed Chapter 2 revisions (1) update references to the designated use classification system to reflect proposed revisions to Chapter 1; and (2) incorporate provisions related to fish toxicants, aquatic pesticides, and short-term sediment disturbance that the Water Quality Division proposes to move from Chapter 1 to Chapter 2.

Para español, visite Americans with Disabilities Act: special assistance or alternative formats will be made available upon request for individuals with disabilities. Please contact Gina Thompson at the contact information above prior to the meeting date for such requests.