Trinity Waters, a Waterkeeper Alliance Affiliate


Cynthia Cook
[email protected]
(214) 542-5806

The Trinity River watershed provides water to greater than 40% of the Texas human population - a population expected to double by the year 2050. The watershed drains approximately 18,000 square miles across 37 state counties, stretching from the headwaters of the Four Forks Region (Clear Fork, West Fork, Elm Fork and East Fork) in North Texas to its terminus into the Trinity Bay at Galveston Bay, a valuable ecosystem and estuary, that adjoins the Gulf of Mexico. Along the way, the river passes through and serves the domestic water needs of the two largest populaces in the state, Dallas-Fort Worth metroplex in North Central Texas, and Houston in Southeast Texas. Between these two urban areas, the majority of the watershed is comprised of rural communities, where an estimated 95% of the land is privately owned.

Cynthia Cook joined Trinity Waters in 2015 as the new Executive Director, after sixteen years experience in landscape architecture and urban planning. Ms. Cook comes from the private sector with a background in Landscape Architecture and Urban Planning, and owner of BlueGreen Synergy, a consulting firm focused on integrated water management, low impact development (LID), green infrastructure and alternative water sourcing. Prior experience includes owner of Site Effects, LLC, a design build firm in Austin, Texas as well as former employment with SEC Planning of Austin, Texas and Conoyer Hedrick Architects in Phoenix, Arizona. Cynthia has served on the U.S. Water Alliance Urban Water Sustainability Council, the Board of Directors for Henderson County United Way, Central Business Association of Athens and The Cain Center.Cynthia has a life long passion for the health and well-being of our natural streams and rivers and is committed to making a difference in the underserved and neglected impaired waters in the Trinity River Basin.


P.O. Box 600190
Dallas, Texas 75360