Triennial Review of Surface Water Quality Standards

David Waterstreet, Program ManagerWatershed Program307-777-6709
Clean Water Act (CWA) Section 401 Certification and Turbidity Waivers  
Eric Hargett (Cheyenne)CWA Section 401 Certification, Turbidity Waivers307-777-6701
Data Quality Assurance and Quality Control (QA/QC)  
Jillian Scott (Cheyenne)Data QA/QC307-777-6372
Nonpoint Source Pollution Program  
Alexandria Jeffers (Cheyenne)Nonpoint Source Program307-777-6733
Surface Water Monitoring Program  
Jeremy Zumberge, Program Supervisor (Sheridan)Surface Water Monitoring Program307-675-5638
Tavis Eddy (Lander)Surface Water Monitoring Program307-335-6957
Eric Hargett (Cheyenne)Surface Water Monitoring Program307-777-6701
Jason Martineau (Sheridan)Surface Water Monitoring Program307-675-5632
Triston Rice (Cheyenne)Surface Water Monitoring Program307-777-6353
Chad Rieger (Sheridan)Surface Water Monitoring Program307-675-5637
Michael Wachtendonk (Lander)Surface Water Monitoring Program307-335-6751
Surface Water Quality Standards  
Lindsay Patterson, Program Supervisor (Cheyenne)Surface Water Quality Standards307-777-7079
Kelsee Hurschman (Cheyenne)Surface Water Quality Standards, Harmful Cyanobacterial Blooms307-777-2073
Madeleine Hamel (Cheyenne)Surface Water Quality Standards, National Environmental Policy Act (NEPA)307-777-7050
Total Maximum Daily Load (TMDL) Program  
Ron Steg, Program Lead (Lander)Total Maximum Daily Load (TMDL)307-335-6980
Bret Callaway (Cheyenne)Total Maximum Daily Load (TMDL)307-777-5802
Water Quality Lab  
Steve Vien, Lab Supervisor (Cheyenne)Water Quality Lab307-777-7654
Alexandra Cook (Cheyenne)Water Quality Lab307-777-7151
Marisa Latady (Cheyenne)Water Quality Lab307-777-6783
Vacant (Cheyenne)Water Quality Lab307-777-3770
Rules and Regulations

All official Wyoming State Rules and Regulations are kept at the Wyoming Secretary of State's Office. Click here to view all current Rules and Regulations. 


Guidance Documents

This page contains a variety of downloadable Guidance documents that explain Surface Water Quality Standards procedures. 

Triennial Review Working Group

Related Programs

Wyoming’s surface water quality standards (Water Quality Rules and Regulations, Chapter 1) are intended to implement relevant sections of the Wyoming Environmental Quality Act and the federal Clean Water Act (CWA).

The Water Quality Division initiated scoping, outlined below, for a triennial review of Wyoming’s surface water quality standards in August 2018. At that time, DEQ released a public notice and scoping document. The public was invited to provide comments at public hearings on September 24, 2018 in Casper or September 28, 2018 in Cheyenne or submit written comments by 5 PM on October 12, 2018. DEQ is currently in the process of developing proposed revisions and responding to comments received during the scoping phase, described below. 


Scoping is the process of soliciting input from the public on any aspects of Wyoming’s surface water quality standards that should potentially be modified during the upcoming revision.

Once a draft of proposed changes and a statement of reasons has been developed, the proposed rules will be considered by the Water and Waste Advisory Board (board), along with any comments received on the proposed changes.  

Once recommended by the board, the Environmental Quality Council (council) will consider the proposed changes to Chapter 1, along with any comments received on the proposed changes. 

Once adopted by the council, the Governor may approve the revisions or require modifications. Once signed by the Governor, the rules are filed with the Secretary of State and become effective.

Once approved by the Governor, revisions to Wyoming’s surface water quality standards are submitted to the United States Environmental Protection Agency pursuant to the CWA. 

Wyoming’s current surface water quality standards are described here

Lindsay Patterson, Program Supervisor (Cheyenne)
Surface Water Quality Standards