Vance scraped the bottom of the creek bed with a stick, which appeared to show "chemicals coming out of the ground."
While a sheen can appear on water resulting from an oil spill or naturally occurring iron bacteria, thousands of dead fish and other wildlife have cropped up in East Palestine since the train derailment on Feb. 3.
FILE PHOTO: An environmental company is removing dead fish downstream from the site of the train derailment that forced people to be evacuated from their homes in East Palestine, Ohio, U.S., February 6, 2023. (REUTERS/Alan Freed)
More than 7 miles of streams and about 3,500 fish have died so far as a result of contaminants that leaked from the train, according to the Ohio Department of Natural Resources.
A Norfolk Southern train carrying hazardous chemicals derailed on the evening of Feb. 3, sending vinyl chloride, a human carcinogen, and other chemicals into the ground and air.
Water is rerouted near the site of a train derailment on February 14, 2023, in East Palestine, Ohio. (Angelo Merendino/Getty Images)
Three days later, officials decided to conduct a controlled release of chemicals to avoid an explosion after one of the train cars started overheating.
The release sent a fireball and thick plumes of black smoke over East Palestine, a town on the Ohio-Pennsylvania border that is home to about 4,700 people.
The Ohio Environmental Protection Agency has tested five wells in Palestine’s municipal water system and found "no detection of contaminants in raw water."
The EPA also said that "robust air-quality testing" has not "detected any levels of health concern that can be attributed to the incident."
Despite that, residents of East Palestine have been hesitant to return home.
"What we're experiencing – local fish in our creeks have died… oily sheens and coloration in our water… [the] constant smell of burning plastics and chemicals in the air…issues with our dog… vomiting, acting lethargic. It's scary stuff here," East Palestine resident Nathan Izotic previously told Fox News.
Aside from the chemical-ridden creek and dead wildlife, Vance also noted an off-putting smell in the air.
"Look, people say that the air is clean. I would like to believe that that’s true. I also have been here for all of three hours, and it doesn’t smell great to me. Especially, when we first arrived," Vance said Thursday. "This morning I was immediately struck by the smell of the air. Thankfully, the air problem is a much shorter-term problem than the water problem."
Fox News' Andrew Mark Miller and Adam Sabes contributed to this report.