[Code of Federal Regulations]
[Title 40, Volume 13]
[Revised as of January 1, 2003]
From the U.S. Government Printing Office via GPO Access
[CITE: 40CFR65.107]
[Page 78-80]
TITLE 40 - PROTECTION OF ENVIRONMENT
CHAPTER I - ENVIRONMENTAL PROTECTION AGENCY (CONTINUED)
PART 65 - CONSOLIDATED FEDERAL AIR RULE--Table of Contents
Subpart F - Equipment Leaks
Sec. 65.107 Standards: Pumps in light liquid service.
(a) Compliance schedule. The owner or operator shall comply with
this section no later than the implementation date specified in
Sec. 65.1(f).
(b) Leak detection. Unless otherwise specified in Sec.
65.102(b) or paragraph (e) of this section, the owner or operator shall
monitor each pump to detect leaks and shall comply with all other
provisions of this section.
(1) Monitoring method. The pumps shall be monitored monthly to
detect leaks by the method specified in Sec. 65.104(b) and
(c).
(2) Instrument reading that defines a leak. The following leak
definitions determined through instrument readings apply:
(i) 5,000 parts per million or greater for pumps handling
polymerizing monomers;
(ii) 2,000 parts per million or greater for pumps in food/medical
service; and
(iii) 1,000 parts per million or greater for all other pumps.
(3) Leak repair exception. For pumps to which a 1,000 parts per
million leak definition applies, repair is not required unless an
instrument reading of 2,000 parts per million or greater is detected.
(4) Visual inspection. Each pump shall be checked by visual
inspection each calendar week for indications of liquids dripping from
the pump seal. The owner or operator shall document that the inspection
was conducted and the date of the inspection. If there are indications
of liquids dripping from the pump seal at the time of the weekly
inspection, the owner or operator shall comply with either of the
following procedures:
(i) The owner or operator shall monitor the pump as specified in
Sec. 65.104(b) and (c) unless the pump has already been
monitored since the last routine monthly monitoring required by
paragraph (b)(1) of this section. If monitoring is performed and the
instrument reading indicates a leak as specified in paragraph (b)(2) of
this section, a leak is detected and the leak shall be repaired using
the procedures in Sec. 65.105, except as specified in
paragraph (b)(3) of this section; or
(ii) The owner or operator shall eliminate the visual indications of
liquids dripping.
(c) Percent leaking pumps calculation. (1) The owner or operator
shall decide
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no later than the implementation date of this part or upon revision of
an operating permit whether to calculate percent leaking pumps on a
process unit basis or group of process units basis. Once the owner or
operator has decided, all subsequent percentage calculations shall be
made on the same basis.
(2) If, when calculated on a 6-month rolling average, at least the
greater of either 10 percent of the pumps in a process unit or three
pumps in a process unit leak, the owner or operator shall implement a
quality improvement program for pumps that complies with the
requirements of Sec. 65.116.
(3) The number of pumps at a process unit shall be the sum of all
the pumps in regulated material service, except that pumps found leaking
in a continuous process unit within 1 month after startup of the pump
shall not count in the percent leaking pumps calculation for that one
monitoring period only.
(4) Percent leaking pumps shall be determined by Equation 107-1 of
this section:
[GRAPHIC] [TIFF OMITTED] TR14DE00.021
Where:
%PL = Percent leaking pumps.
PL = Number of pumps found leaking as determined through
monthly monitoring as required in paragraph (b)(1) of this section.
PS = Number of pumps leaking within 1 month of startup during
the current monitoring period.
PT = Total pumps in regulated material service, including
those meeting the criteria in paragraphs (e)(1), (e)(2), (e)(3), and
(e)(6) of this section.
(d) Leak repair. If a leak is detected pursuant to paragraph (b) of
this section, then the leak shall be repaired using the procedures in
Sec. 65.105, as applicable.
(e) Special provisions for pumps. - (1) Dual mechanical
seal pumps. Each pump equipped with a dual mechanical seal system that
includes a barrier fluid system is exempt from the requirements of
paragraph (b) of this section, provided the requirements specified in
paragraphs (e)(1)(i) through (viii) of this section are met.
(i) The owner or operator determines, based on design considerations
and operating experience, criteria applicable to the presence and
frequency of drips and to the sensor that indicates failure of the seal
system, the barrier fluid system, or both. The owner or operator shall
keep records of the design criteria and an explanation of the design
criteria, and any changes to these criteria and the reasons for the
changes.
(ii) Each dual mechanical seal system shall meet the following three
requirements:
(A) Operated with the barrier fluid at a pressure that is at all
times (except periods of start-up, shutdown, or malfunction) greater
than the pump stuffing box pressure; or
(B) Equipped with a barrier fluid degassing reservoir that is routed
to a process or fuel gas system or connected by a closed vent system to
a control device that complies with the requirements of Sec.
65.115; or
(C) Equipped with a closed-loop system that purges the barrier fluid
into a process stream.
(iii) The barrier fluid is not in light liquid service.
(iv) Each barrier fluid system is equipped with a sensor that will
detect failure of the seal system, the barrier fluid system, or both.
(v) Each pump is checked by visual inspection each calendar week for
indications of liquids dripping from the pump seal. The owner or
operator shall document that the inspection was conducted and the date
of the inspection. If there are indications of liquids dripping from the
pump seal at the time of the weekly inspection, the owner or operator
shall follow either one of the following procedures prior to the next
required inspection:
(A) The owner or operator shall monitor the pump as specified in
Sec. 65.104(b) and (c) to determine if there is a leak of
regulated material in the barrier
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fluid. If an instrument reading of 1,000 parts per million or greater is
measured, a leak is detected and it shall be repaired using the
procedures in Sec. 65.105; or
(B) The owner or operator shall eliminate the visual indications of
liquids dripping.
(vi) If indications of liquids dripping from the pump seal exceed
the criteria established in paragraph (e)(1)(i) of this section, or if
based on the criteria established in paragraph (e)(1)(i) of this section
the sensor indicates failure of the seal system, the barrier fluid
system, or both, a leak is detected.
(vii) Each sensor as described in paragraph (e)(1)(iv) of this
section is observed daily or is equipped with an alarm unless the pump
is located within the boundary of an unmanned plant site.
(viii) When a leak is detected pursuant to paragraph (e)(1)(vi) of
this section, it shall be repaired as specified in Sec.
65.105.
(2) No external shaft. Any pump that is designed with no externally
actuated shaft penetrating the pump housing is exempt from the
requirements of paragraph (b) of this section.
(3) Routed to a process or fuel gas system or equipped with a closed
vent system. Any pump that is routed to a process or fuel gas system or
equipped with a closed vent system that captures and transports leakage
from the pump to a control device meeting the requirements of
Sec. 65.115 is exempt from the requirements of paragraph (b)
of this section.
(4) Unmanned plant site. Any pump that is located within the
boundary of an unmanned plant site is exempt from the weekly visual
inspection requirement of paragraphs (b)(4) and (e)(1)(v) of this
section and the daily requirements of paragraph (e)(1)(vii) of this
section provided that each pump is visually inspected as often as
practical and at least monthly.
(5) Ninety percent exemption. If more than 90 percent of the pumps
at a process unit meet the criteria in either paragraph (e)(1) or (2) of
this section, the process unit is exempt from the percent leaking
calculation in paragraph (c) of this section.
(6) Unsafe-to-monitor pumps. Any pump that is designated as
described in Sec. 65.103(c)(1) as an unsafe-to-monitor pump is
exempt from the requirements of paragraph (b) of this section, the
monitoring and inspection requirements of paragraphs (e)(1)(v) through
(viii) of this section, and the owner or operator shall monitor and
repair the pump according to the written plan specified in
Sec. 65.103(c)(4).