Could SC Have a Coal Ash Problem?

Environmental advocacy group Earth Justice has released a new report citing South Carolina as one of the states with the least oversight of "coal ash" retention. For those not familiar with the term, coal ash is one by-product of burning coal to produce electricity. Coal ash is known to contain hazardous materials like arsenic, lead, and selenium, but is often stored around the producing plant in large reservoirs because the waste is classified as an inert material (Dewan, 2008).

If the claims made by Earth Justice are correct, then the reservoirs in question could pose a potential hazard to South Carolinians. For example, a major coal ash spill infamously destroyed homes and poisoned a river in Kingston, TN in 2008. With environmental protection's chronic under-funding in SC, could a situation like this happen to one of our rivers? Is this a legitimate concern, or a watchdog group seeking to churn up public concern over a non-issue?