Section 218.686  Control Requirements

a)         Every owner or operator of an aerosol can filling line that is filling cans with a propellant which contains propane, butane or other VOM subject to this Subpart shall comply with the following requirements:

1)         Emission capture and control techniques which achieve an overall reduction in uncontrolled VOM emission of at least 81% from the propellant filling area, also known as the gas house, on each line; or

2)         As an alternative to compliance with subsection (a)(1) of this Subpart, the owner or operator of an aerosol can filling line shall comply with the following requirements:

A)        Fill all cans, other than trial runs of cans to verify product quality, using through-the-valve fill or enhanced under-the-cup fill to minimize loss of VOM propellant; or use a reclamation system to recover surplus VOM propellant; or use another system approved in a federally enforceable permit which achieves at least 75% reduction of the emissions of under-the-cup fill;

B)        Fill on a monthly basis at least 90% of cans filled on such aerosol can filling lines that are capable of being filled by the through-the-valve method with through-the-valve fill. All cans shall be considered capable of being filled by the through-the-valve method unless, as demonstrated by the records required by Section 218.692(b)(2) of this Part, the valve assembly is not adaptable to the through-the-valve fill; through-the-valve fill cannot be accomplished with at least 85% of the under-the-cup operating rate in cans per minute of filling; or performance, that is the discharge of the can's contents to accomplish its intended function, is negatively affected by through-the-valve fill considering factors such as propellant solubility in the can's contents and the amount of turbulence which the contents may experience during propellant filling; and

C)        Verify proper filling of cans with a VOM monitoring system in the gas house.  This system may monitor VOM concentration as a percentage of the lower explosive limit.

b)         Every owner or operator of a propellant booster pump associated with an aerosol can filling line subject to this Subpart shall comply with one of the following requirements:

1)         Emission capture and control techniques which achieve an overall reduction in uncontrolled VOM emission of at least 81% from each pump.  If the pumps are located in the gas house of a filling line, compliance with this reduction may be achieved by the combination of the pumps located in the gas house and the propellant filling area; or

2)         Work practices to prevent leaks from a pump, meaning a loss of VOM from the pump above background levels.  Work practices shall include changing seals every four (4) weeks and plungers every 16 weeks unless a pump monitoring procedure approved in a federally enforceable permit establishes otherwise.

(Source:  Amended at 19 Ill. Reg. 6848, effective May 9, 1995)