Current through Register Vol. 48, No. 38, September 20, 2024
a)
The effectiveness of the treatment unit is verified by the Periodic
Verification Tests. The manufacturer, owner, or operator of a treatment unit
must perform Periodic Verification Tests that satisfy at least one of the
following:
1) Passing the Initial Efficacy
Test by using Option 1, 2, or 3 (see Appendix A) (whichever is applicable). The
three challenge loads described in Appendix A, Table C do not need to be used.
The test microorganisms or indicator microorganisms must be placed in a
representative load in compliance with Section
1422.124(e)(1).
For example, an autoclave may use Option 3 (e.g., demonstrate the destruction
of 1,000,000 Bacillus stearothermophilus spores) to meet the Periodic
Verification Test requirement. In the case of an incinerator, a stainless steel
pipe with threaded ends and removable caps lined with a ceramic insulation may
be used to contain a glass culture vial with Bacillus subtilis spore strips.
The pipe with the spore strips may be placed in a load of PIMW for the Periodic
Verification Test. After the treatment, the pipe with the spore strips may be
recovered and the spores may be cultured to assess whether 1,000,000 spores
have been destroyed to meet the Periodic Verification Test
requirement.
2) Correlating the log
kill of the test microorganisms in the Initial Efficacy Test to an equivalent
log kill of the indicator microorganism spores in compliance with Appendix B.
The equivalent log kill of the indicator microorganism spores must be used for
all subsequent Periodic Verification Tests. The correlation must be done with
the three challenge loads identified in Appendix A, Table C. (See subsection
(b) for further requirements.); or
3) Submitting and obtaining written approval
by the Agency for a procedure that is equivalent to subsection (a)(2).
A) Examples of alternatives include use of
another indicator microorganism or measurement of disinfectant concentrations
in the treated residue.
B) For
incinerators only, an example of an alternative is visually inspecting the ash
from each load of treated PIMW to ensure that all PIMW within the load is
completely combusted.
C) The
approval of an alternative by the Agency may require more frequent testing and
monitoring of the treatment unit.
b) For the Correlating Periodic Verification
Test, which provides the correlation of log kill of the test microorganisms
with the equivalent log kill of the indicator microorganisms, the following
procedures apply:
1) Use an initial
population of 1,000,000 indicator microorganism spores per gram of waste solids
in each challenge load;
2) Use the
fraction of surviving indicator microorganisms that correlates to a log kill of
six for each test microorganism in future Periodic Verification Tests.
A) For example, if a log kill of four for the
indicator microorganism spores per gram of waste solids is achieved during this
demonstration, then a population of 10,000 of the indicator microorganism must
be used in all future Periodic Verification Tests.
B) For future Periodic Verification Tests,
the three challenge loads described in Appendix A, Table C do not need to be
used.
C) The test microorganisms or
indicator microorganism spores must be placed in a representative load in
compliance with Section
1422.124(e)(1);
3) The minimum threshold death rate is an
equivalent log kill of three for the indicator microorganism spores to ensure
that all test microorganisms are destroyed;
4) Test microorganisms or indicator
microorganisms must be cultured and enumerated compliant with instructions
provided by the supplier of the microorganisms and Standard Methods for the
Examination of Water and Wastewater (see 35 Ill. Adm. Code
1420.103
); and
5) The Periodic Verification
Test and the Initial Efficacy Test may be run concurrently to verify the
correlation.
c) If a load
of PIMW fails a Periodic Verification Test, the Periodic Verification Test must
be repeated.
1) The operator must implement
the quality assurance program (see Section
1422.122(a)(4)
) and contact the manufacturer, if applicable, to identify and correct the
problem or problems until the unit can eliminate the infectious potential of
the PIMW.
2) If the operating
parameters are altered, another Initial Efficacy Test must be performed to
demonstrate the effectiveness of the unit and, if applicable, another Periodic
Verification Test correlation, under subsection (a), must also be
repeated.
3) Loads of PIMW that
were first processed prior to receiving results showing a failure of the
Periodic Verification Tests are considered treated.
4) A second Periodic Verification Test must
be run immediately after the first Periodic Verification Test indicates a
failure. The second Periodic Verification Test is to determine whether the
treatment unit is eliminating the infectious potential of the waste.
5) After the second Periodic Verification
Test shows a failure of the treatment unit, the processed waste is considered
PIMW and must be managed in compliance with this Subtitle.
d) Results of the Period Verification Tests
must be received, verified, and made available for inspection by the Agency
within two weeks of when the test was conducted. When a Periodic Verification
Test is used to confirm the failure of a treatment unit, the results of the
Periodic Verification Test must be received, verified, and made available for
inspection by the Agency within one week of when the test was conducted.
Results of Periodic Verification Tests must be made available in compliance
with the requirements of subsection (g).
e) Periodic Verification Tests must be
conducted monthly or more frequently if required by the permit or recommended
by the manufacturer.
f) A Document
of Correlating Periodic Verification Demonstration must be prepared by and kept
at the treatment facility, and must be available at the treatment facility
during normal business hours for inspection and photocopying by the Agency. The
Document of Periodic Verification Demonstration must include:
1) A detailed description of the test
procedures used and documentation showing the correlation between the log kill
of the test microorganisms and the equivalent kill of the indicator
microorganism spores. An evaluation of the test results must include: All test
data generated, with description of data handling, and a presentation and
interpretation of final test results;
2) A detailed description of the operating
parameters (e.g., temperatures, pressures, retention times, chemical
concentrations, irradiation dose, and feed rates);
3) A description of quality assurance and
quality control procedures and practices for the culture, storage, and
preparation of test or indicator microorganisms (including organism history,
source, stock culture maintenance, and enumeration procedures). The purity of
the test microorganisms or indicator microorganism spores must be certified by
a commercial or clinical laboratory;
4) A description of microorganism preparation
and packaging, challenge load weight and composition, unit testing scheme
(numbers of test rows), and sampling strategy (e.g., number and weight of solid
and liquid samples);
5) A
description and demonstration of microorganism recovery including sample
processing, incubation, and effective neutralization, and absence of toxic
compounds due to neutralization;
6)
Appendices containing raw data and assumptions in tabular form;
7) The name, date, signature, title, and
qualifications of the person or persons conducting the Periodic Verification
Test; and
8) A list of references
used to evaluate the data and obtain the conclusion.
g) Records of Periodic Verification Tests
must be prepared by and kept at the treatment facility, and made available at
the treatment facility during normal business hours for inspection and
photocopying by the Agency. These records must include:
1) The dates the Periodic Verification Tests
were performed;
2) Operating
parameters (e.g., temperatures, pressures, retention times, chemical
concentrations, irradiation dose, and feed rates);
3) Test protocols;
4) Evaluation of test results; and
5) The name, date, signature, title, and
qualifications of the person or persons conducting the Periodic Verification
Tests.
h) Periodic
Verification Tests must be conducted under the same operating conditions the
treatment unit operates on a day-to-day basis. The feed rate for the treatment
unit is the maximum feed rate at which the unit operates on a day-to-day basis.
The feed rate must remain constant throughout the Periodic Verification Test.
This feed rate must never be exceeded during the operation of the treatment
unit.
