The US can offer lessons: Water pollution from drilling confirmed In at least 4 states casting huge doubt over safety of boom It has been reported that dead fish have been found lying scattered in the dry silt of Lake Arrowhead. One of the prime sources of water for the City of Wichita Falls Texas. Water is a crucial but controversial resource for the fracking industry which is booming in the US. Despite enormous media coverage on the topic, many factors remain badly understood by policymakers and even the business community itself. Water sourcing and pollution risks are deep concerns that could threaten not only the industry's viability but more importantly the environment itself. Extracting fuel requires pumping hundreds of thousands of gallons of water, several chemicals and sand into the ground to smash apart rock and free the gas. Some of that water however, along with large quantities of existing underground water, returns to the surface, which can contain high levels of drilling chemicals, heavy metals, salt and naturally occurring radiation.