Current through Register Vol. 48, No. 38, September 20, 2024
a) Monitoring
1) Each pump in light liquid service must be
monitored monthly to detect leaks by the methods specified in Section
724.963(b),
except as provided in subsections (d), (e), and (f).
2) Each pump in light liquid service must be
checked by visual inspection each calendar week for indications of liquids
dripping from the pump seal.
b) Leaks
1)
If an instrument reading of 10,000 ppm or greater is measured, a leak is
detected.
2) If there are
indications of liquids dripping from the pump seal, a leak is
detected.
c) Repairs
1) When a leak is detected, it must be
repaired as soon as practicable, but not later than 15 calendar days after it
is detected, except as provided in Section
724.959.
2) A first attempt at repair (e.g.,
tightening the packing gland) must be made no later than five calendar days
after each leak is detected.
d) Each pump equipped with a dual mechanical
seal system that includes a barrier fluid system is exempt from the
requirements of subsection (a), provided the following requirements are met:
1) Each dual mechanical seal system must be
as follows:
A) Operated with the barrier
fluid at a pressure that is at all times greater than the pump stuffing box
pressures;
B) Equipped with a
barrier fluid degassing reservoir that is connected by a closed-vent system to
a control device that complies with the requirements of Section
724.960;
or
C) Equipped with a system that
purges the barrier fluid into a hazardous wastestream with no detectable
emissions to the atmosphere.
2) The barrier fluid system must not be a
hazardous waste with organic concentrations 10 percent or greater by
weight.
3) Each barrier fluid
system must be equipped with a sensor that will detect failure of the seal
system, the barrier fluid system, or both.
4) Each pump must be checked by visual
inspection, each calendar week, for indications of liquids dripping from the
pump seals.
5) Alarms
A) Each sensor as described in subsection
(d)(3) must be checked daily or be equipped with an audible alarm that must be
checked monthly to ensure that it is functioning properly.
B) The owner or operator must determine,
based on design considerations and operating experience, a criterion that
indicates failure of the seal system, the barrier fluid system, or
both.
6) Leaks
A) If there are indications of liquids
dripping from the pump seal or the sensor indicates failure of the seal system,
the barrier fluid system, or both based on the criterion determined in
subsection (d)(5)(B), a leak is detected.
B) When a leak is detected, it must be
repaired as soon as practicable, but not later than 15 calendar days after it
is detected, except as provided in Section 724.959.
C) A first attempt at repair (e.g., relapping
the seal) must be made no later than five calendar days after each leak is
detected.
e)
Any pump that is designated, as described in Section
724.964(g)(2),
for no detectable emissions, as indicated by an instrument reading of less than
500 ppm above background, is exempt from the requirements of subsections (a),
(c), and (d), if the pump meets the following requirements:
1) It must have no externally actuated shaft
penetrating the pump housing.
2) It
must operate with no detectable emissions as indicated by an instrument reading
of less than 500 ppm above background, as measured by the methods specified in
Section
724.963(c).
3) It must be tested for compliance with
subsection (e)(2) initially upon designation, annually and at other times, as
specified in the RCRA permit.
f) If any pump is equipped with a closed-vent
system capable of capturing and transporting any leakage from the seal or seals
to a control device that complies with the requirements of Section 724.960, it
is exempt from the requirements of subsections (a) through (e).