
Under the cover of early-morning darkness in South Texas last March, a tanker truck ferrying fluids from an oil and gas drilling site rumbled down a country road spewing its toxic load all over the place.
The concoction of drilling fluid, which typically includes undisclosed and dangerous chemicals, oil, metals shavings and naturally occurring radioactive materials, coated eight miles of roadway, according to a Karnes County Sheriff's Department report obtained by InsideClimate News.
The spill has prompted an investigation by the sheriff's department, the Texas Commission on Environmental Quality (TCEQ) and the state Railroad Commission.
If not for surveillance video given to the sheriff's department, the trucker responsible for the dumping may have disappeared into the night. But the video caught the distinctive flash from the reflective stripes on the tanker. It was the telltale clue detectives needed.
Although sheriff's investigators couldn't determine whether the illegal dumping was intentional, it highlights the growing problem of how to dispose of billions of gallons of contaminated fluids left over from both the drilling and production phases of oil and gas development using hydraulic fracturing, or fracking.
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