All piping at a surface facility shall be routed above the ground and kept within the secondary containment area where practicable. Piping that cannot be routed above the ground shall have its location marked with posts or with other location-identifying markers approved by the director so that the buried piping can be easily located.
N.D. Admin Code 43-02-02.4-36
General Authority: NDCC 38-12-02
Law Implemented: NDCC 38-12-02