Big Spring, Big Spring Preserve, Great Trinity Forest, Dallas. Above photo courtesy of Ben Sandifer.

SAN MARCOS, TEXAS – September 16, 2019 Texas Stream Team is excited to announce citizen scientist Ben Sandifer as the 2019 Citizen Scientist of the Year. Sandifer monitors one of the last free flowing springs in Dallas County, Big Spring, and has never missed a month of monitoring since joining Texas Stream Team in June 2013.

Before becoming a citizen scientist, Sandifer, whose profession is in accounting, spent a great amount of volunteer time working to conserve and preserve Big Spring, which, at the time, was in danger of being turned into a water station for livestock. Sandifer said there was an immediate need to find out what the water quality looked like for the spring.

Ben Sandifer

“There is a deep human history to the site that dates back many thousands of years to Native American history and European pioneers,” Sandifer said “A lot of that and the free flowing springs would have likely been destroyed if the area around the spring was developed.”

Sunset at Big Spring. Photo courtesy of Ben Sandifer.

“I kind of threw the kitchen sink, broadcasting far and wide to friends, and friends of friends, and friends of friends of friends who might know anyone in the conversation community who could bring some tools to bear in protecting Big Spring,” he said. “That’s when I met Richard Grayson from Aquatic Alliance.”

From there, Sandifer received the Core Water Quality Citizen Scientist Training and a year later received the Advanced Water Quality Citizen Scientist Training from Aquatic Alliance, a fellow Texas Stream Team partner.  Sandifer monitors Big Spring on a monthly basis for pH, dissolved oxygen, conductivity, field observations, air and water temperature, E. coli, and stream flow.  

Richard Grayson from Aquatic Alliance looking at the water at Big Spring. Photo courtesy of Ben Sandifer.

Sandifer said data collection is very important to him because it allows the decision makers – the policy makers at city hall- to see his water quality data and make informed decisions about what’s best for water quality and the spring.

“I leave out my own opinion about the data I gather at Big Spring, because I think my data – which I make sure is collected as professionally as possible – is good enough to be an advocate on its own with the merits it’s collected,” he said. “That data has proven very useful with city council people, in the mayor’s office, and some of the head management in Dallas at city hall regarding efforts to preserve Big Spring.”

Great Trinity Forest. Photo courtesy of Ben Sandifer.

Big Spring is located in the Dallas Great Trinity Forest in Dallas County, which is the largest urban hardwood bottomland in North America. Data shows that the water is the cleanest in town, with zero E.coli at the source. Numerous volunteers, including Sandifer, privately funded carbon-14 dating at Big Spring, and the water dates back 600 years as it comes out of the ground. It hasn’t seen the light of day since then. 

Aquatic Alliance and Texas Stream Team aren’t the only organizations collecting scientific data from Big Spring’s resources. UT Southwestern Medical Center Medical researchers are working with parasitic flatworms found at Big Spring that are similar to those found in subsaharan Africa, the Middle East, Southeast Asia, and the Caribbean. The flatworm found in these countries causes a disease known as Schistosomiasis, also known as bilharzia or snail fever, which has diseased and killed hundreds of millions of people in just the last decade. Schistosomiasis is just one of a group of diseases known as Neglected Tropical Diseases (NTDs).

“UT Southwestern researchers were able to take these parasitic flatworms, from Big Spring – my test site – which are similar to those in Africa to study their stem cells and work on a cure,” Sandifer said. “It made me really proud because it’s been a long, hard road to keep Big Spring intact and keep entities like developers away from it.”

Milkweed at Big Spring. Photo courtesy of Ben Sandifer.

In addition to his monthly monitoring, Sandifer has helped lead several Texas Stream Team citizen scientist trainings for various groups. One group was able to take the knowledge they learned to address a water issue in another part of the world.

“We trained some folks from Engineers Without Borders at Southern Methodist University at Big Spring,” he said, “and they went off to bring fresh water to people in Equatorial Africa for the first time!”

Sandifer said he is deeply honored to receive the 2019 Citizen Scientist of the Year Award and feels as though this is an award that a great many people share a part in.

“Without the support from a lot of people, I wouldn’t be able to do the work that I do,” Sandifer said. “For that, I want to thank those people who are the supporting cast for people like me who are just a cog in the wheel with Texas Stream Team.”

Trail at Big Spring. Photo courtesy of Ben Sandifer.

On top of being a volunteering as a citizen scientist with Texas Stream Team, Sandifer is an Honorary Lifetime North Texas Master Naturalist and has performed multiple educational and outreach events for Big Spring. In his community, Sandifer has been awarded the 2015 DFW Sustainable Leadership Volunteer of the Year and was nominated for the 2016 Texan of the Year by the Dallas Morning News for his volunteer efforts throughout the years. 

To read more about Big Spring, check out the Springs of Texas Mini-Series with Alexander Neal: Big Spring, Dallas. To learn more about Texas Stream Team, visit or email

Valerie Villarreal

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