How do we treat Flashing Losses from hydrocarbon storage tanks?
There are three processes involved when considering VOC emissions from hydrocarbon storage tanks: working, breathing and flashing losses. Each of these processes should normally be entered separately, with different SCC codes. Working and breathing losses have their own SSC codes and EPA added a new SCC for flashing losses in 2007 (40400300 – Petroleum Liquids Storage (Non-Refinery), Fixed Roof Tank, Flashing Losses). Working, breathing and flashing losses from condensate tanks maybe grouped into the all inclusive code of 40400311- Condensate, working+breathing+flashing losses if combined emissions are less than 5.0 tpy.
