Drilling mud, cuttings, treatment chemicals, and discharged water must be disposed of according to applicable federal, state, and local requirements. Drilling mud, cuttings, treatment chemicals, and discharged water must not be disposed of in a manner that creates a health or environmental hazard.
Oil or other hazardous materials must be removed from drilling fluid recirculation pits before backfilling. Pits must be backfilled with clean soil materials, leveled, and graded.
Minn. R. agency 144, ch. 4727, CONSTRUCTION AND USE OF EXPLORATORY BORINGS, pt. 4727.0940
Statutory Authority: MS s 103I.101