(a) A by-product coke oven battery must be equipped with coke pushing and transport to quench tower control equipment to limit particulate emissions to the atmosphere during pushing and transport to the quench tower unless exempted under section 214.10(b) of this Part. The stack discharge from this system to the outdoor atmosphere shall be limited to particulate emissions of either 0.05 grains per dry standard cubic foot of exhaust gas or 0.05 pounds per ton of coal charged into the oven, whichever is less stringent. Pushing emission control sheds must be limited to a particulate emission of 0.07 lb/ton of coal charged.

(b) The average opacity of emissions from coke pushing and from any transport of coke to the quench tower must be less than 20 percent opacity, as measured in accordance with the procedures set forth in subdivision (c) this section. If uncontrolled quench cars are used to transport coke from a pushing control device to a quench tower, the average opacity of emissions from the uncontrolled car must not exceed 20 percent when measured by the method of subdivision (c) of this section.

(c) Compliance with the opacity standards of subdivision (b) of this section will be determined by observing and timing any visible emission discharged during the pushing of coke from the oven into the transport car and during the transport of coke to the quench tower. The observer must stand at a distance sufficient to provide a clear view of the pushing and transport operations with the sun oriented in the 140° sector of his back. The opacity of emissions will be computed by averaging the results of 24 consecutive opacity observations made at 15-second intervals. Observations must be made only during the pushing and transport period. A sufficient number of consecutive pushing and transport operations must be observed to accumulate the minimum of 24 consecutive opacity readings.