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

Current through Supplement No. 393, July, 2024
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.