North Dakota Administrative Code
Title 33.1 - Department of Environmental Quality
Article 33.1-20 - Solid Waste Management and Land Protection
Chapter 33.1-20-07.1 - Small Volume Industrial Waste Landfills and Special Waste Landfills
Section 33.1-20-07.1-01 - Performance and design criteria

Universal Citation: ND Admin Code ยง 33.1-20-07.1-01

Current through Supplement No. 395, January, 2025

In addition to the requirements of section 33.1-20-01.1-11 and chapter 33.1-20-04.1, the owner or operator of an industrial waste landfill or a special waste landfill, excluding CCR landfills subject to chapter 33.1-20-08, shall comply with the design, construction, and operating standards as follows:

1. On all areas of the landfill where final cover or additional solid waste will not be placed within six months, eight inches [20.3 centimeters] or more of compacted clay-rich soil material, similar material, or a synthetic cover must be placed to prevent ponding of surface water, to minimize infiltration of surface water, and to control windblown dust.

2. Solid waste disposal in industrial waste landfills and special waste landfills must be limited to those wastes identified in the permit application or permit. Regulated infectious waste, used oil as a free liquid, and hazardous waste may not be accepted for disposal at the landfill. TENORM waste may only be accepted under the provisions of chapter 33.1-20-11.

3. All solid wastes deposited at the landfill must be spread and compacted as densely as practicable to minimize waste volume and promote drainage of surface water.

4. Any new or lateral expansion of an industrial waste landfill or special waste landfill must be designed with an appropriate hydraulic barrier and leachate management system capable of collecting and removing leachate and contaminated surface water within the disposal unit.

a. The liner and leachate removal system must be compatible with the waste and leachate.

b. The liner and leachate removal system must maintain its integrity during the operating period and through the postclosure period.

c. The system must have a collection efficiency of ninety percent or better and must be capable of maintaining a hydraulic head of twelve inches [30.5 centimeters] or less above the liner.

d. For landfills that receive wastes containing water soluble constituents, the liner must consist of at least four feet [1.2 meters] of compacted natural soil having a hydraulic conductivity not to exceed 1 x 10-7 centimeters per second.

e. A composite liner is required for landfills receiving TENORM waste or wastes which may contain leachable organic constituents. The liner must consist of at least three feet [91.4 centimeters] of recompacted clay with a hydraulic conductivity not to exceed 1 x 10-7 centimeters per second overlain with at least a sixty mil flexible membrane liner.

f. The drainage layer must have a hydraulic conductivity of 1 x 10-3 centimeters per second or greater throughout. The drainage layer must have a sufficient thickness to provide a transmissivity of 3 x 10-2 centimeters squared per second or greater.

g. The liner and leachate removal system in combination with the final cover must achieve a site efficiency of at least ninety-eight and one-half percent or better for collection or rejection of the precipitation that falls on the site.

h. The requirements of this subsection for a liner, leachate collection system, or both liner and leachate collection system may be modified by the department if the permit applicant demonstrates that, based on factors such as geology and hydrology of the site, characteristics of the waste, and engineering design, any leachate migration can be prevented or controlled.

General Authority: NDCC 23.1-03-04, 23.1-08-03; S.L. 2017, ch. 199, § 1

Law Implemented: NDCC 23.1-03-03, 23.1-03-04, 23.1-08-03, 23.1-08-09; S.L. 2017, ch. 199, §§ 18, 23

Disclaimer: These regulations may not be the most recent version. North Dakota may have more current or accurate information. We make no warranties or guarantees about the accuracy, completeness, or adequacy of the information contained on this site or the information linked to on the state site. Please check official sources.
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