R307-309-4. Fugitive Emissions

(1) Fugitive emissions from any source shall not exceed 15% opacity. (2) Opacity observations of fugitive emissions from stationary sources shall be conducted in accordance with EPA Method 9. (3) For intermittent sources and mobile sources, opacity observations shall be conducted using Method 9; however, the requirement for observations to be made at 15 second intervals over a six-minute period shall not apply. The number of observations and the time period shall be determined by the length of the intermittent or mobile source operation.