Current through Register Vol. 48, No. 9, September 27, 2024
(a) CQA program.
(1) A construction quality assurance (CQA)
program is required for all surface impoundment, waste pile, and landfill units
that are required to comply with 264.221 (c) and (d), 264.251 (c) and (d), and
264.301 (c) and (d). 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 CQA officer who is a
registered professional engineer.
(2) The CQA program must address the
following physical components, where applicable:
(i) Foundations;
(ii) Dikes;
(iii) Low-permeability soil liners;
(iv) Geomembranes (flexible membrane
liners);
(v) Leachate collection
and removal systems and leak detection systems; and
(vi) Final cover systems.
(b) Written CQA plan.
The owner or operator of units subject to the CQA program under paragraph (a)
of this section must develop and implement a written CQA 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 CQA plan must
include:
(1) Identification of applicable
units, and a description of how they will be constructed.
(2) Identification of key personnel in the
development and implementation of the CQA plan, and CQA officer
qualifications.
(3) A description
of inspection and sampling activities for all unit components identified in
paragraph (a)(2) of this section, 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
264.73.
(c) Contents of
program.
(1) The CQA program must include
observations, inspections, tests, and measurements sufficient to ensure:
(i) Structural stability and integrity of all
components of the unit identified in paragraph (a)(2) of this
section;
(ii) 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;
(iii) Conformity of all materials used with
design and other material specifications under 264.221, 264.251, and
264.301.
(2) The CQA
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
264.221(c)(1)(i)(B), 264.251(c)(1)(i)(B), and 264.301(c)(1)(i)(B) 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 264.221(c)(1)(i)(B), 264.251(c)(1)(i)(B), and
264.301(c)(1)(i)(B) in the field.
(d) Certification. Waste shall not be
received in a unit subject to 264.19 until the owner or operator has submitted
to the Department by certified mail or hand delivery a certification signed by
the CQA officer that the approved CQA plan has been successfully carried out
and that the unit meets the requirements of 264.221 (c) or (d), 264.251 (c) or
(d), or 264.301 (c) or (d); and the procedure in 270.30(l)(2)(ii) of this
chapter has been completed. Documentation supporting the CQA officers
certification must be furnished to the Department upon request.
