LAC 56:V.515. Surface Plug

A. A surface plug is a 30-foot or more in length cement plug that is placed in the upper 30 feet of the well casing. The plugging material shall be allowed to spill over the top of the casing and into the annular space to a depth of about 10 feet completely sealing the annular space between the hole and casing. To assure no movement of water into the annular space the ground slab, if any, shall be removed before plugging and sealing operations begin.