Current through Register Vol. 49, No. 27, December 30, 2024
Subpart 1.
Construction quality
assurance program.
A construction quality assurance program is required for all
surface impoundment, waste pile, and landfill units that are required to comply
with parts
7045.0532, subpart
3, items C and H; 7045.0534,
subpart
3, items C and D; and
7045.0538, subpart
3, items C and K. 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.
The construction quality assurance program must address the
following physical components, where applicable:
A. foundations;
B. dikes;
C. low-permeability soil liners;
D. geomembranes (flexible membrane
liners);
E. leachate collection and
removal systems and leak detection systems; and
F. final cover systems.
Subp. 2.
Written construction quality
assurance plan.
The owner or operator of units subject to the construction
quality assurance program under subpart
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
subpart
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 part
7045.0478.
Subp. 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 subpart
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 (e.g. pipes) according to
design specifications; and
(3)
conformity of all materials used with design and other material specifications
under parts
7045.0532,
7045.0534, and
7045.0538.
B. The construction quality assurance program
shall 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 parts
7045.0532, subpart
3, item C, subitem (1), unit
(a), subunit ii; 7045.0534, subpart
3, item C, subitem (1), unit
(a), subunit ii; and 7045.0538, subpart
3, item C, subitem (1), unit
(a), subunit ii, in the field. Compliance with the hydraulic conductivity
requirements must be verified by using in-situ testing on the constructed test
fill. The commissioner 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 parts
7045.0532, subpart
3, item C, subitem (1), unit
(a), subunit ii; 7045.0534, subpart
3, item C, subitem (1), unit
(a), subunit ii; and 7045.0538, subpart
3, item C, subitem (1), unit
(a), subunit ii, in the field.
Subp.
4.
Certification.
Waste shall not be received in a unit subject to part
7045.0461 until the owner or
operator has submitted to the commissioner 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 parts
7045.0532, subpart
3, items C and H; 7045.0534,
subpart
3, items C and D; and
7045.0538, subpart
3, items C and K; and the
procedure in part
7001.0150, subpart
3, item M, has been
completed. Documentation supporting the construction quality assurance
officer's certification must be furnished to the commissioner upon
request.
Statutory Authority: MS s
116.07;
116.37
