Is there a de minimus level for reporting actual emissions (i.e., a level below which emissions do not need to be reported)?
Emissions that are 500 pounds or more per year from any emissions unit should be reported. Emissions that are less than 500 pounds per year from any emissions unit do not need to be reported, unless the total emissions from similar units at the stationary source equal or exceed 2,000 pounds per year. An exception to this is for facilities with total HAP emissions greater than or equal to 25 tons/year; these facilities must report all HAP emissions including those below 500 pounds per year, for the HAPs on this list: • 1,3 – Butadiene • Arsenic and arsenic compounds • Benzene • Chromium and chromium compounds • Coke oven emissions • Nickel and nickel compounds • Vinyl chloride • Lead and lead compounds • Mercury and mercury compounds • Dioxins Other HAPs must be reported if the emissions are more than 500 pounds per year from any emissions unit.
