Ill. Admin. Code tit. 35, § 840.146 - Construction Quality Assurance Program
a) The following components must be
constructed according to a construction quality assurance program:
1) Installation of the groundwater collection
trench and discharge system required by Sections
840.120
and
840.122
of this Subpart;
2) Compaction of
the final cover system subgrade and foundation to design parameters;
3) Application of final cover, including
installation of the geomembrane; and
4) Construction of ponds, ditches, lagoons
and berms.
b) The
construction quality assurance program must meet the following requirements:
1) The operator must designate a construction
quality assurance (CQA) officer who is an Illinois licensed professional
engineer (LPE).
2) At the end of
each week of construction of the final cover system until construction is
complete, a summary report must be either prepared by the CQA officer or under
the supervision of the CQA officer. The report must include descriptions of the
weather, locations where construction occurred during the previous week,
materials used, results of testing, inspection reports, and procedures used to
perform the inspections. The CQA officer must certify the report. The owner or
operator of the Hutsonville Power Station shall retain all weekly summary
reports certified by the CQA officer until the completion of the post-closure
care period and must make those reports available at reasonable times for
inspection and photocopying by the Agency.
3) The CQA officer must exercise judgment to
certify the following:
A) That the bedding
material contains no undesirable objects;
B) That the closure plan has been
followed;
C) That the anchor trench
and backfill are constructed to prevent damage to the geosynthetic
membrane;
D) That all tears, rips,
punctures, and other damage are repaired;
E) That all geosynthetic membrane seams are
properly constructed and tested in accordance with manufacturer's
specifications;
F) That the
groundwater trench is constructed to intersect the water table;
G) That the groundwater trench is properly
constructed to slope toward extraction points, and the extraction equipment is
properly designed and installed;
H)
That an appropriate operations and maintenance plan for the trench and
extraction and discharge equipment is provided;
I) That proper filter material consisting of
uniform granular fill, to avoid clogging, is used in construction;
and
J) That the filter material as
placed must possess structural strength adequate to support the maximum loads
imposed by the overlying materials and equipment used at the
facility.
4) The CQA
officer must supervise and be responsible for all inspections, testing and
other activities required to be implemented as part of the CQA program under
this Section.
5) The CQA officer
must be present to provide supervision and assume responsibility for performing
all inspections of the following activities:
A) Compaction of the subgrade and foundation
to design parameters;
B)
Application of final cover, including installation of the
geomembrane;
C) Installation of the
groundwater collection trench and discharge system required by Sections
840.120
and
840.122
of this Subpart;
and
D)
Construction of ponds, ditches, lagoons and berms.
6) If the CQA officer is unable to be present
to perform, as required by subsection (b)(5) of this Section, the CQA officer
must provide, in writing, the reasons for his or her absence, a designation of
a person who must exercise professional judgment in carrying out the duties of
the CQA officer-in-absentia, and a signed statement that the CQA officer
assumes full responsibility for all inspections performed and reports prepared
by the designated CQA officer-in-absentia during the absence of the CQA
officer.
7) The sampling program
must be implemented as part of the CQA plan for all construction activities in
order to ensure, at a minimum, that construction materials and operations meet
design specifications.
A) The sampling
program must be designed prior to construction.
B) The sampling program must be based upon
statistical sampling techniques and must establish and specify criteria for
acceptance or rejection of materials and operations.
Notes
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