the millions of liteters of polluted water mixid wiwith f fracking lewis returnso the surface where the liquid must be didisposed of. often near this with the liquids and volatile compounds can evaporate into the air. for the 8-day year life of the well, trucks must take away the polluted mixixtu. this can be 50% of everything coming up the well, mostly volatile organic compounds. potentntial pommells with this process are nonot just relegated to the fracking of the well but every aspect of reduction. the main is whwhen they leak out ofhehe sides of the shshaft into the water table through cracked cases. also, the chemicals are mixed and sofas and stored in a large pond and a must be insulated from the college which is sometimes not done. once it is drilleded and production, it can still be invisibly polluted.. as much as 9% of f the methane d out of theay leak well. most shale basins are even flat and mainin a fairly regular deep layer with you a hard rock contractions that would allow water to move upward. dog did from the university of the free state supported natural gas extraction