Illinois Administrative Code › Title 35 - ENVIRONMENTAL PROTECTION › Part 310 - PRETREATMENT PROGRAMS › Subpart F - REPORTING REQUIREMENTS › Section 310.605 - Periodic Reports on Compliance

Current through Register Vol. 48, No. 28, July 12, 2024
a) After the compliance date of a
				pretreatment standard, or, in the case of a new source, after commencement of
				the discharge into the POTW, any industrial user subject to a categorical
				pretreatment standard (except a non-significant categorical user, as defined in
				Section 310.110) must submit to the
				Control Authority a report indicating the nature and concentration of
				pollutants in the effluent that are limited by the categorical pretreatment
				standards. The industrial user must submit the report in June and December
				unless the Control Authority or the pretreatment standard requires more
				frequent reporting. In addition, this report must include a record of measured
				or estimated average and maximum daily flows for the reporting period for the
				discharge reported in Section
				310.602(d),
				except that the Control Authority may require more detailed reporting of flows.
				If the pretreatment standard requires compliance with a best management
				practice (or pollution prevention alternative), the industrial user must submit
				documentation required by the Control Authority or the pretreatment standard
				necessary to determine the compliance status of the industrial user. In
				consideration of such factors as local high or low flow rates, holidays, budget
				cycles, etc., the Control Authority may alter the months during which the
				reports required by this subsection (a) are to be submitted. For an industrial
				user for which USEPA or the Agency is the Control Authority, as of December 21,
				2025 or a USEPA-approved alternative date (see
				40 CFR
				127.24(e) or (f)), all
				reports submitted in compliance with this Subpart F must be submitted
				electronically by the industrial user to the Control Authority or initial
				recipient, as defined in Section
				310.106(b)(2),
				in compliance with this Subpart F and Section 310.106.
b) The Control Authority must authorize the
				industrial user subject to a categorical pretreatment standard to forego
				sampling of a pollutant regulated by a categorical pretreatment standard if it
				determines that the industrial user has demonstrated through sampling and other
				technical factors that the pollutant is neither present nor expected to be
				present in the discharge or that the pollutant is present only at background
				levels from intake water and without any increase in the pollutant due to
				activities of the industrial user. This authorization is subject to the
				following conditions:
1) The Control Authority
				may authorize a waiver only if it determines that a pollutant is present solely
				due to sanitary wastewater discharged from the facility, the sanitary
				wastewater is not regulated by an applicable categorical standard, and the
				sanitary wastewater otherwise includes no process wastewater;
2) The monitoring waiver is valid only for
				the duration of the effective period of the permit or other equivalent
				individual control mechanism, but in no case longer than five years. The
				industrial user must submit a new request for the waiver before the waiver can
				be granted for each subsequent control mechanism;
3) In making a demonstration that a pollutant
				is not present, the industrial user must provide data from at least one
				sampling of the facility's process wastewater prior to any treatment present at
				the facility that is representative of all wastewater from all processes. The
				request for a monitoring waiver must be signed in accordance with Section
				310.631 and include the
				certification statement in Section
				310.221(b)(2).
				Non-detectable sample results may only be used as a demonstration that a
				pollutant is not present only if the USEPA-approved method from
				40 CFR
				136, incorporated by reference in Section
				310.107, with the lowest minimum
				detection level for that pollutant was used in the analysis;
4) Any grant of a monitoring waiver by the
				Control Authority must be included as a condition in the industrial user's
				control mechanism. The reasons supporting the waiver and any information
				submitted by the industrial user in its request for the waiver must be
				maintained by the Control Authority for three years after the expiration of the
				waiver;
5) Upon approval of the
				monitoring waiver and revision of the industrial user's control mechanism by
				the Control Authority, the industrial user must certify on each report with the
				statement below, that there has been no increase in the pollutant in its
				wastestream due to activities of the industrial user:
Based on my inquiry of the person or persons directly
				  responsible for managing compliance with the pretreatment standard for Subpart
				  [Subpart number of the applicable national pretreatment standard] of 35 Ill.
				  Adm. Code 307, I certify that, to the best of my knowledge and belief, there
				  has been no increase in the level of [list pollutants] in the wastewaters due
				  to the activities at the facility since filing of the last periodic report
				  under 35 Ill. Adm. Code
				  310.605(a);
6) If a waived pollutant is found to be
				present or is expected to be present based on changes that occur in the
				industrial user's operations, the industrial user must immediately comply with
				the monitoring requirements of subsection (a) or other more frequent monitoring
				requirements imposed by the Control Authority, and the industrial user must
				notify the Control Authority; and
7) This subsection (b) does not supersede
				certification processes and requirements established in categorical
				pretreatment standards, except as otherwise specified in the categorical
				pretreatment standard.