S.C. Code Ann. § 47-20-60 – Promulgation of regulations relating to waste lagoons and alternative technologies for the treatment of animal waste

(A) The department shall promulgate regulations governing maximum lagoon size and minimum lagoon size, based on the permitted number of animal units to be maintained at the animal feeding operation. However, no single lagoon may exceed four acres.
(B) Lagoons and waste storage ponds for animal feeding operations with a capacity for more than 420,000 pounds of normal production animal live weight at any one time must be lined with a combination of natural and synthetic material which results in a permeability rating equal to or more protective than that required for human waste lagoons.
(C) The owner or operator of an animal feeding operation shall obtain certification from a licensed engineer or an appropriate Natural Resource Conservation Service employee that the operation's lagoon and waste storage pond were designed, constructed, and installed in accordance with regulatory specifications.
(D) Before the construction of a lagoon and a waste storage pond, the owner or operator shall remove all under-drains that exist from previous agricultural operations.
(E) Waste must not be placed directly in or allowed to come into contact with groundwater. Additionally, the minimum separation distance between the lowest point of the lagoon and a waste storage pond and the highest point of the water table beneath the lagoon is 2 feet, unless adequate provisions have been taken and meet the standards established in regulations promulgated by the department.
(F) The department shall conduct a study of alternative technologies for the treatment of animal waste from animal feeding operations and promulgate regulations governing the use of these alternative treatment technologies. Every five years the department shall review changing technologies relating to the treatment of animal waste and promulgate appropriate regulations as needed. The department shall determine which animal feeding operations are required to use aerobic lagoons or other treatment technology.
(G) The department shall consider the cumulative impacts including, but not limited to, impacts from evaporation, storm water, and other potential and actual point and nonpoint sources of pollution runoff, levels of nutrients or other elements in the soils and nearby waterways, ground-water or aquifer contamination, pathogens or other elements, and the pollution assimilative capacity of the receiving water body before permitting new or expanded animal feeding operations. The department may require alternative waste treatment in watersheds which are nutrient-sensitive.
(H) Disposal of animal carcasses or body parts into waste lagoons is prohibited.