===Arsenic===
Arsenic is the most common cause of acute heavy metal poisoning in adults, and does not leave the body once it enters.<ref name="toxic"/>
==Arsenic limits lifted at Wateree Station==
On March 8, 2010 it was announced that the South Carolina Department of Health and Environmental Control agreed to eliminate arsenic limits in a wastewater discharge permit for [[South Carolina Electric & Gas Company]]'s (SCE&G) [[Wateree Station]]. SCE&G needs State approval for its coal ash ponds because wastewater from the site runs directly into the Wateree River. The ponds take waste from the company's 40-year-old coal-fired plant. Since the 1990s, high levels of arsenic, a carcinogen, have been found in groundwater and in seepage to the Wateree River from coal ash ponds at the power plant. Sierra Club and other environmental groups are posing to fight the permit on the grounds that arsenic ought not be eliminated.<ref>[http://www.renewablesbiz.com/article/10/03/dhec-loosens-arsenic-limit-sceandg-discharge-utilitys-plant-feeds-wateree-river "DHEC loosens arsenic limit for SCEandG: Discharge from utility's plant feeds into Wateree River"] Sammy Fretwell, RenewableBiz.com, March 8, 2010</ref>
==Resources==