NDAC 43-02-02-15.5
Reserve pit for drilling mud and drill cuttings from shallow wells
Cite as N.D. Admin. Code ยง 43-02-02-15.5
For wells drilled to a strata or formation, including lignite or coal strata or seam, located above the
depth of five thousand feet [1524 meters] below the surface, or located more than five thousand feet
[1524 meters] below the surface but above the top of the Rierdon formation, a container or reserve pit
of sufficient size to contain said material or fluid, and the accumulation of drill cuttings may be utilized to
contain solids and fluids used and generated during well drilling and completion operations, providing
the pit can be constructed, used, and reclaimed in a manner that will prevent pollution of the land
surface and freshwaters. A reserve pit may be allowed by an order of the commission after notice and
hearing for wells drilled within a specified field and pool more than five thousand feet [1524 meters]
below the surface and below the top of the Rierdon formation provided the proposed well or wells utilize
a low sodium content water-based mud system and the reserve pit can be constructed, used, and
reclaimed in a manner that will prevent pollution of the land surface and freshwaters. In special
circumstances, based on site conditions, the director or authorized representative may prohibit
construction of a reserve pit or may impose more stringent pit construction and reclamation
requirements, including reserve pits previously authorized by a commission order within a specified
field or pool. Under no circumstances shall reserve pits be used for disposal, dumping, or storage of
fluids, wastes, and debris other than drill cuttings and fluids used or recovered while drilling and
completing the well.
Reserved pits shall not be located in, or hazardously near, bodies of water, nor shall they block
natural drainages. No reserve pit shall be wholly or partially constructed in fill dirt unless approved by
the director.
Within thirty days after the completion of a shallow well, or prior to drilling below the surface casing
shoe on any other well, the reserve pit shall be reclaimed. The director may grant an extension of the
thirty-day time period of no more than one year for good cause. Prior to reclaiming the pit, the operator,
or the operator's agent, shall file a sundry notice (form 4-sm) with the director and obtain approval of a
pit reclamation plan. Verbal approval to reclaim the pit may be given. The notice must include:
1.
The name and address of the reclamation contractor;
2.
The name and address of the surface owner;
3.
The location and name of the disposal site for the pit water; and
4.
A description of the proposed work, including details on treatment and disposition of the
drilling waste.
All pit water must be removed prior to reclamation. Drilling waste should be encapsulated in the pit and
covered with at least four feet. [1.22 meters] of backfill and topsoil. The surface shall be sloped, when
practicable, to promote surface drainage away from the reclaimed pit area.