327 IAC 5-2-13 - Monitoring
Authority: IC 13-14-8; IC 13-14-9; IC 13-15-1-2; IC 13-15-2-1; IC 13-18-3
Affected: IC 13-11-2; IC 13-18-4
Sec. 13.
(a) To
assure compliance with permit terms and conditions, all permittees shall
monitor, as required in the permit, the following:
(1) The mass, concentration, or other
measurement specified in sections 11, 11.1, and 11.6 of this rule for each
pollutant specified in the permit.
(2) The volume of wastewater flow at
monitoring points specified in the permit, including the final effluent flow
from each point source.
(3) Other
parameters and conditions as specifically required in the permit.
(b) A POTW shall monitor the mass,
concentration, or other units of specified pollutants in the raw influent, in
the discharge from intermediate unit treatment processes as specified in the
permit or the applicable report of operation form, and in the final effluent,
and the volume of effluent flow. For purposes of this section and sections 14
through 15 of this rule, a POTW includes a municipality or other political
subdivision, such as a regional sewer district, that owns or operates a
wastewater treatment plant or a water treatment plant, as defined in IC
13-11-2, or a private utility of a quasi-public nature that owns or operates a
treatment plant from which a permitted discharge occurs, including a mobile
home park or a residential development.
(c) For purposes of subsections (a) and (b),
the commissioner shall specify the following monitoring requirements in the
permit:
(1) Requirements concerning proper
installation, use, and maintenance of monitoring equipment or methods
(including biological monitoring methods where appropriate).
(2) Monitoring frequency, type, and intervals
sufficient to yield continuing data representative of the volume of effluent
flow and the quantity of pollutants discharged based on the impact of the
wastestream on the receiving water, in accordance with
40
CFR 122.44.
(3) Test procedures for the analysis of
pollutants meeting the requirements of subsection (d).
(d) Requirements for test procedures shall be
as follows:
(1) Test procedures identified in
40 CFR 136 shall be utilized for pollutants or parameters listed in that part,
unless an alternative test procedure has been approved under
40 CFR
136.5.
(2) Where no test procedure under 40 CFR 136
has been approved, analytical work shall be conducted in accordance with test
procedures approved by the commissioner.
(3) Notwithstanding subdivision (1), the
commissioner may specify in a permit the test procedure specified in a standard
or effluent limitations guideline.
(e) The sampling frequency and other
monitoring requirements specified by the commissioner under subsection (c)
shall, to the extent applicable, be consistent with monitoring requirements
specified in a standard or effluent limitations guideline on which the effluent
limitations in the permit are based. In no case shall the sampling frequency be
less than once per calendar year.
(f) Where composite samples are specified in
the permit, each fraction of the composite shall be weighted in proportion to
the flow corresponding to the time that sample fraction is taken unless the
permittee demonstrates that such flow-weighting of sample fractions is not
necessary to obtain representative monitoring results.
Notes
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