Jordan Macha

Executive Director & Waterkeeper

Jordan Macha is the Executive Director and your Bayou City Waterkeeper. A Houston native, Jordan advocates for healthy waters throughout the Galveston Bay watershed, working on wetland protection and urban water management, promoting nature-based systems, and supporting community efforts to improve water quality.

Prior to joining Bayou City Waterkeeper, Jordan advanced coastal restoration and clean energy priorities across the Gulf region while working for the Gulf Restoration Network and the Sierra Club. She received her Master’s of Public Administration with an emphasis on Urban Water Management and Policy from Texas State University, and graduated from the University of the South in Sewanee, TN with degrees in Russian and Political Science.

Jordan currently serves as the Harris County representative for the H-GAC Natural Resources Advisory Committee, and is a 2019 fellow for WEA’s Women Environmental Leadership Accelerator. Jordan and her husband live near Brays Bayou, spending their weekends enjoying the bayous and coastal prairies across our region.

You can reach her at:, 713 309 6683 (direct)

Kristen Schlemmer

Legal Director

Kristen Schlemmer joined Bayou City Waterkeeper in July 2018 as its first Legal Director. Kristen uses the law to fight for cleaner water, protect wetlands, and make Houston, Galveston, and the communities in between more resilient to climate change.

Before joining Bayou City Waterkeeper, Kristen learned how to try cases at Susman Godfrey, focused on environmental and wildlife law at Irvine & Conner, and clerked for two federal judges in Texas and Louisiana. Kristen received a JD from Tulane Law School and BA from UT-Austin and grew up in the northernmost pocket of Houston in Kingwood after spending her early childhood in Rio de Janeiro, Brazil.

Kristen is a Texas Gulf Coast Master Naturalist and member of New Leaders Council’s 2018 class. Kristen and her family live a short walk from Buffalo Bayou in one of Houston’s oldest houses.

You can reach her at,
281 501 9630 (direct)

Board of Directors

sharron stewart

Sharron Stewart

Sharron, our current Board Chair, began serving on the Board in 2009.  She is a coastal advocate and educator based in Lake Jackson, and has worked with many national, state, and local agencies to preserve and protect the coastal environment, including the U.S. Fish and Wildlife Service in its effort to protect the Columbia Bottoms hardwood forests in Texas.

Popken Passport Photo

David Popken

David, an avid sailor and fisherman, serves as Vice Board Chair and Treasurer. He and his wife, Kris, live on Galveston Bay in Seabrook, where he serves as a member of the City of Seabrook’s Open Spaces and Parks Committee, Galveston Bay Cruising Association, Galveston Bay Foundation, and Audubon Society.

Jorge Bustamante

Jorge, currently serving as Board Secretary, joined the board in 2019. As Project Manager for the Greater Northside Management District, he lives in the Near Northside and utilizes his e-bike and public transit to move around town. Prior to joining BCWK, Jorge was foundational member of the Houston Department of Transformation.

Joe Liggio

Joe joined the board in 2015. After a career working for state agencies and corporations, he utilizes his educational and professional experience to compile and analyze data to assist in our programmatic goals. Joe is the author of Wild Orchids of Texas.


Rachel Powers

Rachel began serving on the board in 2019. A long-time Houstonian, Rachel currently serves as Executive Director of Citizens Environmental Coalition, working to foster dialogue and collaboration on environmental issues.

Jen Powis

Jen currently serves as general counsel to the organization, having joined the board in 2014. Founder of The Powis Firm, she specializes in environmental advocacy services and provides strategic direction for campaigns and programs for a variety of Gulf Coast nonprofits.

Advisory Board

Dr. John Jacob  •  Martin Hamilton  •  Vaness Hamilton