Section 69-05.2-20-02 - Performance standards - Dams and embankments constructed of or impounding coal processing waste - Site preparation Before coal processing waste is placed at a dam or embankment site:
1. All vegetative material must be cleared from the site, and suitable plant growth material removed and stockpiled according to this article; and 2. Surface drainage that may cause erosion to the embankment area or the embankment features, whether during construction or after completion, must be diverted by diversion ditches that comply with the requirements of section 69-05.2-16-06. Adequate outlets for discharge from these diversions must comply with section 69-05.2-16-10. Diversions to carry drainage from the upstream area away from the impoundment area and runoff from the surface of the impoundment facility must be designed to carry the peak runoff from a one hundred-year, six-hour precipitation event. The diversion must be maintained to prevent blockage, and the discharge must comply with section 69-05.2-16-10. Sediment control measures must be provided at the discharge of each diversion ditch before entry into natural watercourses according to 69-05.2-16. N.D. Admin Code 69-05.2-20-02
Effective August 1, 1980; amended effective May 1, 1990.General Authority: NDCC 38-14.1-03
Law Implemented: NDCC 38-14.1-24, 38-14.1-25