R307-209-10. Asphalt Plant Requirements

(1) An owner or operator of an asphalt plant shall comply with the following: (a) ensure opacity does not exceed 10% opacity and opacity observations shall be conducted in accordance with 40 CFR 60, Method 9; (b) use natural gas, propane, fuel oil, on-specification used oil as defined in Rule R315-15, or any combination thereof as fuel; (c) maintain records of fuel use; (d) control particulate emissions from each storage silo with a fabric filter, a baghouse, a bin vent, or a dust collector; (e) control particulate emissions from each asphalt mixer with a baghouse; (f) maintain the pressure drop of the asphalt plant baghouse between 3.0 and 7.0 inches of water during operation and additionally the owner or operator shall comply with the following: (i) install a pressure gauge on each baghouse; (ii) ensure the pressure gauge measures the pressure drop in 1-inch water column increments or less; (iii) calibrate the pressure gauge according to the manufacturer's instructions at least once every 12 months; and (iv) record the reading of the pressure gauge at least once per operating day. (2) The owner or operator shall: (a) ensure filterable PM2.5 emissions do not exceed 0.024 grains per dry standard cubic foot; (b) conduct an initial stack test on each asphalt plant within 180 days after startup; (c) conduct a stack test on each asphalt plant within three years after the date of the most recent stack test; (d) conduct stack testing according to Rule R307-165; and (e) determine PM2.5 emissions by 40 CFR 60, Appendix A, Method 5.