NDAC 33.1-24-05-10
Construction quality assurance program
Cite as N.D. Admin. Code ยง 33.1-24-05-10
1.
Construction quality assurance program.
a.
A construction quality assurance program is required for all surface impoundment, waste
pile, and landfill units that are required to comply with subsections 3 and 4 of section
33.1-24-05-119, subsections 2 and 3 of section 33.1-24-05-131, and subsections 3 and 4
of section 33.1-24-05-177. The program must ensure that the constructed unit meets or
exceeds all design criteria and specifications in the permit. The program must be
developed and implemented under the direction of a construction quality assurance
officer who is a registered professional engineer.
b.
The construction quality assurance program must address the following physical
components, where applicable:
(1)
Foundations;
(2)
Dikes;
(3)
Low-permeability soil liners;
(4)
Geomembranes (flexible membrane liners);
(5)
Leachate collection and removal systems and leak detection systems; and
(6)
Final cover systems.
2.
Written construction quality assurance plan. The owner or operator of units subject to the
construction quality assurance program under subsection 1 must develop and implement a
written construction quality assurance plan. The plan must identify steps that will be used to
monitor and document the quality of materials and the condition and manner of their
installation. The construction quality assurance plan must include:
a.
Identification of applicable units and a description of how they will be constructed.
b.
Identification of key personnel in the development and implementation of the construction
quality assurance plan and construction quality assurance officer qualifications.
c.
A description of inspection and sampling activities for all unit components identified in
subdivision b of subsection 1, including observations and tests that will be used before,
during, and after construction to ensure that the construction materials and the installed
unit components meet the design specifications. The description must cover sampling
size and locations, frequency of testing, data evaluation procedures, acceptance and
rejection criteria for construction materials, plans for implementing corrective measures,
and data or other information to be recorded and retained in the operating record under
section 33.1-24-05-40.
3.
Contents of program.
a.
The construction quality assurance program must include observations, inspections,
tests, and measurements sufficient to ensure:
(1)
Structural stability and integrity of all components of the unit identified in
subdivision b of subsection 1;
(2)
Proper construction of all components of the liners, leachate collection and removal
system, leak detection system, and final cover system, according to permit
specifications and good engineering practices, and proper installation of all
components (for example, pipes) according to design specifications; and
(3)
Conformity of all materials used with design and other material specifications under
sections 33.1-24-05-119, 33.1-24-05-131, and 33.1-24-05-177.
b.
The construction quality assurance program must include test fills for compacted soil
liners, using the same compaction methods as in the full scale unit, to ensure that the
liners are constructed to meet the hydraulic conductivity requirements of subparagraph b
of paragraph 1 of subdivision a of subsection 3 of section 33.1-24-05-119,
subparagraph b of paragraph 1 of subdivision a of subsection 2 of section
33.1-24-05-131, and subparagraph b of paragraph 1 of subdivision a of subsection 3 of
section 33.1-24-05-177 in the field. Compliance with the hydraulic conductivity
requirements must be verified by using in situ testing on the constructed test fill. The
department may accept an alternative demonstration, in lieu of a test fill, where data are
sufficient to show that a constructed soil liner will meet the hydraulic conductivity
requirements of subparagraph b of paragraph 1 of subdivision a of subsection 3 of
section 33.1-24-05-119, subparagraph b of paragraph 1 of subdivision a of subsection 2
of section 33.1-24-05-131, and subparagraph b of paragraph 1 of subdivision a of
subsection 3 of section 33.1-24-05-177 in the field.
4.
Certification. Waste shall not be received in a unit subject to section 33.1-24-05-10 until the
owner or operator has submitted to the department by certified mail or hand delivery a
certification signed by the construction quality assurance officer that the approved construction
quality assurance plan has been successfully carried out and that the unit meets the
requirements of subsection 3 or 4 of section 33.1-24-05-119, subsection 2 or 3 of section
33.1-24-05-131, or subsection 3 or 4 of section 33.1-24-05-177, and the procedure in
paragraph 2 of subdivision b of subsection 12 of section 33.1-24-06-04 has been completed.
Documentation supporting the construction quality assurance officer's certification must be
furnished to the department upon request.