Leonard Bruce

Senior Planner & Policy Analyst 

Gila River Indian Community, Arizona


The Exchange Network is the foundation of the E-Enterprise for the Environment initiative, which is jointly governed by tribes, states, and EPA representatives. See more information onE-Enterprise

Lisa Gover


Campo Band of Mission Indians Environmental Protection Agency, California

If you have trouble accessing resources or pages linked to Dropbox, please contact Natasha.Fulton [at] nau.edu

Non-Employee Discrimination Complaints:
ITEP does not discriminate on the basis of race, color, national origin, disability, age or sex in the administration of its programs or activities. To learn more, or file a complaint, go to the ITEP Non-Employee Discrimination Complaint Page.
Quejas por discriminación cometida contra personas que no trabajan para ITEP:
ITEP no discrimina por motivos de raza, color, país de origen, discapacidad, edad o sexo en la administración de sus programas o actividades. Para saber más al respecto o presentar una queja, vaya a la página de quejas por discriminación cometida contra personas que no trabajan para ITEP.


The TXG is always looking for new members.

See Membership for more information.

The Exchange Network

The EN is a partnership among Tribes, States, Territories, and the U.S. EPA that is improving and expanding the exchange of environmental information. The TXG provides input to the EN on matters pertaining to tribal participation in the Exchange Network.

The Tribal Exchange Network Group (TXG) is comprised of tribal professionals working on various aspects of the EN whose primary purpose is to ensure representation of tribal perspectives and issues in the overall Exchange Network governance structure, and to foster and enhance tribal participation in the Network. Current TXG members have over 40 years cumulative experience on Exchange Network topics and many of them have been directly involved in implementing EN projects for tribes. 
​If you are interested in more information on the activities and experiences of the TXG members, please
contact us!

THE Institute for Tribal Environmental Professionals (ITEP)

In 2014, ITEP began a cooperative agreement with EPA's Office of Environmental Information to provide tribal support for the NEIEN. In this capacity, ITEP works with TXG and tribes, offering technical and programmatic support on Exchange Network topics.

TXG members


Air Quality Program Manager

Pala Band of Mission Indians

Pala, California

Frank Harjo

GIS Manager

Muscogee Nation

Okmulgee, Oklahoma

Bryanna Vaughan

Water Quality Coordinator

Bishop Paiute Tribe

Bishop, California

Angie Reed

Water Resource Planner

Penobscot Indian Nation

Bangor, Maine

bruce Jones

SSHIAP Section Manager

Northwest Indian Fisheries Commission (NWIFC)

Olympia, Washington

APril Hathcoat

Environmental Director

Cherokee Nation 

Tahlequah, Oklahoma

Needs Assessment

Conducted to better understand current tribal capacity, needs, and challenges related to environmental data management, collection, and use. View the Executive Summary and Full Report.


To support tribes’ management, analysis, and sharing of their environmental data, so they can use this data to advocate for their interests to preserve tribal lifeways, and maintain cultural integrity. View the current TXG Charter.