25 tons of natural gas boilers require several operators
What kind of pollution does a biomass burner emit? - PFPI
EPA further identifies two categories of emission sources under the boiler rule major and area sources. A major source is one which emits 25 tons or more of total HAPs and 10 tons or more of any single HAP (for biomass the HAP usually emitted in the greatest quantities is hydrochloric acid or HCl).
It is possible although unlikely for a commercial boiler to be considered a major source under the CAA (major source thresholds for HAPs are 10 tons per year or more for a single HAP or 25 tons per year or more for any combination of HAPs). Building Renovations Several federal regulations govern asbestos removal especially in public spaces.