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
Electronic Documents Submittal

In response to the Governor's request to limit contact and the move toward staff working remotely for the near future, the WDEQ Water Quality Division (WQD) has made electronic document submittal available. This includes permit applications, response to comments, reports, and other communications. Forms have been set up for individual WQD Sections (Watershed, WYPDES, Groundwater, Water/Wastewater), and a form is also available for general WQD submittals. Please choose the appropriate form from the list of links below to upload your documents. If submitted electronically, no hardcopy is required to be submitted unless you are contacted by a WQD Section Manager with a request to submit the hard copy. Please note that the Water Quality Division is unable to accept comments on documents in public notice via these forms. Please refer to the public notice for instructions on how to submit comments.

Groundwater Section:Click Here
Watershed Section: Click Here
Water and Waste Water Section: Click Here
WYPDES Section:Click Here
General WQD:Click Here

NOTICE: Effective November 23, 2021, all permits to be submitted for water distribution systems and/or sewage collection systems that are within the Cheyenne Board of Public Utilities (BOPU) district shall be submitted to the BOPU for approval.  BOPU contacts are Frank Strong or Bryce Dorr at (307) 637-6460,, or for additional information.

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. 


Completed Projects

This page contains a list of TMDL project documents that have been completed – including the project name, previous impediment and EPA approval date.

Integrated Report

The 305(b) Integrated Report and the 303(d) List of Impaired Waterbodies

Section 303(d) of the Clean Water Act requires states to:

  1. Identify all waters of the state which are impaired--i.e. they contain pollutants which adversely affect the water quality (and associated designated uses) of the water.
  2. Prioritize all impaired waterbodies for development of TMDLs. Prioritization is to take into consideration public health and environmental risk.
  3. Establish and adopt TMDLs for all impaired waterbodies or for waterbodies which would be impaired if a TMDL was not established.

If a state does not comply with Section 303(d), the Environmental Protection Agency is required to perform these activities.

Every two years, the state must evaluate it's water quality data, and submit an updated impaired waterbody list to the Environmental Protection Agency (EPA) for approval. This list is generated from the Statewide Water Quality Assessment (also known as the 305(b) Report) which also must be submitted every two years.

The interactive map below provides facts sheets and shape files for download.

Watershed-Based Plans

This page contains a variety of downloadable documents pertaining to Watershed-Based Plans in Wyoming.

Related Programs

States are required to develop total maximum daily load (TMDL) pollutant levels for waterways that are not adequately meeting federal Clean Water Act water quality standards. 

Evaluating TMDL Projects
Our team evaluates TMDL projects based upon the calculation of the total allowable pollutant load for a surface water area in order for it to meet the state’s water quality standards (this is also referred to as the “assimilative capacity” of the water body), taking into consideration the load from both point sources and nonpoint sources of pollution while incorporating a margin of safety.

We use these allocations to evaluate point source permits and to determine critical areas for implementation of best management practices for nonpoint sources. 

Stakeholder Participation
We value and seek out participation from stakeholders throughout the watershed to help restore the surface water so that it meets water quality standards and fully-supports its designated uses. 

To achieve this, local stakeholders are asked to participate throughout the project so that assumptions, calculations, and restoration measures are reasonable and accurate. Public involvement and outreach are critical components for a TMDL project’s success.

Additional Resources
Visit the US Environmental Protection Agency’s website for additional information on impaired surface waters and TMDLs. 

To find out which watershed you live in, click here