[Code of Federal Regulations]
[Title 40, Volume 6]
[Revised as of July 1, 2006]
From the U.S. Government Printing Office via GPO Access
[CITE: 40CFR60.696]

[Page 595-596]
 
                   TITLE 40--PROTECTION OF ENVIRONMENT
 
         CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED)
 
PART 60_STANDARDS OF PERFORMANCE FOR NEW STATIONARY SOURCES--Table of 
Contents
 
 Subpart QQQ_Standards of Performance for VOC Emissions From Petroleum 
                       Refinery Wastewater Systems
 
Sec.  60.696  Performance test methods and procedures and compliance vprovisions.

    (a) Before using any equipment installed in compliance with the 
requirements of Sec.  60.692-2, Sec.  60.692-3, Sec.  60.692-4, Sec.  
60.692-5, or Sec.  60.693, the owner or operator shall inspect such 
equipment for indications of potential emissions, defects, or other 
problems that may cause the requirements of this subpart not to be met. 
Points of inspection shall include, but are not limited to, seals, 
flanges, joints, gaskets, hatches, caps, and plugs.
    (b) The owner or operator of each source that is equipped with a 
closed vent system and control device as required in Sec.  60.692-5 
(other than a flare) is exempt from Sec.  60.8 of the General Provisions 
and shall use Method 21 to measure the emission concentrations, using 
500 ppm as the no detectable emission limit. The instrument shall be 
calibrated each day before using. The calibration gases shall be:
    (1) Zero air (less than 10 ppm of hydrocarbon in air), and
    (2) A mixture of either methane or n-hexane and air at a 
concentration of approximately, but less than, 10,000 ppm methane or n-
hexane.
    (c) The owner or operator shall conduct a performance test 
initially, and at other times as requested by the Administrator, using 
the test methods and procedures in Sec.  60.18(f) to determine 
compliance of flares.
    (d) After installing the control equipment required to meet Sec.  
60.693-2(a) or whenever sources that have ceased to treat refinery 
wastewater for a period of 1 year or more are placed back into service, 
the owner or operator shall determine compliance with the standards in 
Sec.  60.693-2(a) as follows:
    (1) The maximum gap widths and maximum gap areas between the primary 
seal and the separator wall and between the secondary seal and the 
separator wall shall be determined individually within 60 calendar days 
of the initial installation of the floating roof and introduction of 
refinery wastewater or 60 calendar days after the equipment is placed 
back into service using the following procedure when the separator is 
filled to the design operating level and when the roof is floating off 
the roof supports.
    (i) Measure seal gaps around the entire perimeter of the separator 
in each place where a 0.32 cm (0.125 in.) diameter uniform probe passes 
freely (without forcing or binding against seal) between the seal and 
the wall of the separator and measure the gap width and perimetrical 
distance of each such location.
    (ii) The total surface area of each gap described in (d)(1)(i) of 
this section shall be determined by using probes of various widths to 
measure accurately the actual distance from the wall to the seal and 
multiplying each such width by its respective perimetrical distance.
    (iii) Add the gap surface area of each gap location for the primary 
seal and the secondary seal individually, divide

[[Page 596]]

the sum for each seal by the nominal perimeter of the separator basin 
and compare each to the maximum gap area as specified in Sec.  60.693-2.
    (2) The gap widths and total gap area shall be determined using the 
procedure in paragraph (d)(1) of this section according to the following 
frequency:
    (i) For primary seals, once every 5 years.
    (ii) For secondary seals, once every year.