Iowa Admin. Code r. 567-62.6 - Effluent limitations and pretreatment requirements for sources for which there are no federal effluent or pretreatment standards
(1)
Definitions. As used in
this rule:
a.
"Average "
means the sum of the total daily discharges by weight, volume or concentration
during the reporting period (as specified in the operation permit) divided by
the total number of days during the reporting period when the facility was in
operation. With respect to the monitoring requirements, the "daily average"
discharge shall be determined by the summation of all the measured daily
discharges by weight, volume or concentration divided by the number of days
during the reporting period when the measurements were made.
b.
"Maximum " means the
total discharge by weight, volume or concentration which cannot be exceeded
during a 24-hour period.
c.
"Best engineering judgment" means a judgment that considers
any or all of the following:
(1) Known
state-of-the-art (i.e., demonstrated treatment that is being done or can be
done);
(2) Published technical
articles and research results;
(3)
Engineering reference books;
(4)
Consultation with acknowledged experts in the field;
(5) Availability of equipment;
(6) Known or suspected toxicity of the
pollutants;
(7) Safety, welfare and
aesthetic effects on persons who may come in contact with the discharge;
and
(8) Standards and rules of
other regulatory agencies and states.
(2)
Time of compliance.
Effluent limitations and pretreatment limitations established pursuant to this
rule shall be achieved within a reasonable time after receipt of notice from
the department of the applicability of these limitations.
(3)
Effluent limitations.
This subrule establishes effluent limitations on the discharge of pollutants
from sources other than publicly owned treatment works and semipublic sewage
disposal systems that are not subject to the federal effluent standards adopted
by reference in 62.4(1) and 62.4(3) to 62.4(71).
a. There shall be established an effluent
limitation that represents the best engineering judgment of the department of
the degree of effluent reduction consistent with the Act and Iowa Code chapter
455B.
b. The following wastes shall
not be introduced into privately owned treatment works subject to this subrule:
(1) Wastes that create a fire or explosion
hazard in the treatment works.
(2)
Wastes at a flow rate or pollutant discharge rate, or both, which is excessive
over relatively short time periods so that there is a treatment process upset
and subsequent loss of treatment efficiency such that the effluent limitations
in the permit of the treatment works are violated.
(4)
Pretreatment
requirements for incompatible wastes. This subrule establishes
pretreatment requirements for incompatible pollutants that apply to sources
other than significant industrial users as defined in
567-602. (455B), and
to sources that are new or existing significant industrial users for which
there is no federal pretreatment standard (i.e., sources which do not fall
within a point source category or, if they do fall within a point source
category, sources for which the administrator has not yet promulgated a
pretreatment standard).
a. For sources that
are within a point source category adopted by reference in
567-624.
(455B) for which there are promulgated effluent limitation guidelines, but no
promulgated pretreatment standards, the pretreatment standard for incompatible
pollutants shall be the promulgated effluent limitation guideline.
b. For sources that are not subject to
paragraph"a, " the department shall establish an effluent
limitation that represents the best professional judgment for effluent
reduction that is consistent with the Act and Iowa Code chapter 455B.
Notes
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