[Title 40 CFR 61.132]
[Code of Federal Regulations (annual edition) - July 1, 2002 Edition]
[Title 40 - PROTECTION OF ENVIRONMENT]
[Chapter I - ENVIRONMENTAL PROTECTION AGENCY]
[Subchapter C - AIR PROGRAMS (CONTINUED)]
[Part 61 - NATIONAL EMISSION STANDARDS FOR HAZARDOUS AIR POLLUTANTS]
[Subpart L - National Emission Standard for Benzene Emissions from Coke]
[Sec. 61.132 - Standard: Process vessels, storage tanks, and tar-intercepting sumps.]
[From the U.S. Government Printing Office]


40PROTECTION OF ENVIRONMENT82002-07-012002-07-01false61.132Sec. 61.132PROTECTION OF ENVIRONMENTENVIRONMENTAL PROTECTION AGENCYAIR PROGRAMS (CONTINUED)NATIONAL EMISSION STANDARDS FOR HAZARDOUS AIR POLLUTANTSNational Emission Standard for Benzene Emissions from Coke
Sec. 61.132  Standard: Process vessels, storage tanks, and tar-intercepting sumps.

    (a)(1) Each owner or operator of a furnace or a foundry coke 
byproduct recovery plant shall enclose and seal all openings on each 
process vessel, tar storage tank, and tar-intercepting sump.
    (2) The owner or operator shall duct gases from each process vessel, 
tar storage tank, and tar-intercepting sump to the gas collection 
system, gas distribution system, or other enclosed point in the by-
product recovery process where the benzene in the gas will be recovered 
or destroyed. This control system shall be designed and operated for no 
detectable emissions, as indicated by an instrument reading of less than 
500 ppm above background and visual inspections, as determined by the 
methods specified in Sec. 61.245(c). This system can be designed as a 
closed, positive pressure, gas blanketing system.
    (i) Except, the owner or operator may elect to install, operate, and 
maintain a pressure relief device, vacuum relief device, an access 
hatch, and a sampling port on each process vessel, tar storage tank, and 
tar-intercepting sump. Each access hatch and sampling port must be 
equipped with a gasket and a cover, seal, or lid that must be kept in a 
closed position at all times, unless in actual use.
    (ii) The owner or operator may elect to leave open to the atmosphere 
the portion of the liquid surface in each tar decanter necessary to 
permit operation of a sludge conveyor. If the owner or operator elects 
to maintain an opening on part of the liquid surface of the tar 
decanter, the owner or operator shall install, operate, and maintain a 
water leg seal on the tar decanter roof near the sludge discharge chute 
to ensure enclosure of the major portion of liquid surface not necessary 
for the operation of the sludge conveyor.
    (b) Following the installation of any control equipment used to meet 
the requirements of paragraph (a) of this section, the owner or operator 
shall monitor the connections and seals on each control system to 
determine if it is operating with no detectable emissions, using Method 
21 (40 CFR part 60, appendix A) and procedures specified in 
Sec. 61.245(c), and shall visually inspect each source (including 
sealing materials) and the ductwork of the control system for evidence 
of visible defects such as gaps or tears. This monitoring

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and inspection shall be conducted on a semiannual basis and at any other 
time after the control system is repressurized with blanketing gas 
following removal of the cover or opening of the access hatch.
    (1) If an instrument reading indicates an organic chemical 
concentration more than 500 ppm above a background concentration, as 
measured by Method 21, a leak is detected.
    (2) If visible defects such as gaps in sealing materials are 
observed during a visual inspection, a leak is detected.
    (3) When a leak is detected, it shall be repaired as soon as 
practicable, but not later than 15 calendar days after it is detected.
    (4) A first attempt at repair of any leak or visible defect shall be 
made no later than 5 calendar days after each leak is detected.
    (c) Following the installation of any control system used to meet 
the requirements of paragraph (a) of this section, the owner or operator 
shall conduct a maintenance inspection of the control system on an 
annual basis for evidence of system abnormalities, such as blocked or 
plugged lines, sticking valves, plugged condensate traps, and other 
maintenance defects that could result in abnormal system operation. The 
owner or operator shall make a first attempt at repair within 5 days, 
with repair within 15 days of detection.
    (d) Each owner or operator of a furnace coke by-product recovery 
plant also shall comply with the requirements of paragraphs (a)-(c) of 
this section for each benzene storage tank, BTX storage tank, light-oil 
storage tank, and excess ammonia-liquor storage tank.

[54 FR 38073, Sept. 14, 1989, as amended at 65 FR 62157, Oct. 17, 2000]