S.C. Code Ann. § 39-55-100 – Depth requirements for funeral vaults

(A) Where the excavation can be accomplished without drilling or the use of equipment other than a shovel, funeral vaults must be at least ten inches below the earth's surface. As used in this section, "funeral vaults" means caskets, grave liners, or other outer burial containers. It does not include markers, monuments, or crypts constructed in a mausoleum or columbarium.
(B) This section does not apply to cemeteries located in the coastal/lowland areas which are subject to tidal or surface flooding or have a high-level water table, except that vaults may be placed level with the ground in coastal/lowland cemeteries where the water table is at least two feet below ground level and which cemeteries are not subject to tidal or surface water flooding.
(C) Any person violating the provisions of this section is guilty of a misdemeanor and, upon conviction, must be fined not more than two hundred dollars or imprisoned for not more than thirty days.