Below are examples of exhaust stack configurations to help complete
the application form.
Exhaust Vertical: Yes / Raincap: None
Exhaust Vertical: Yes / Raincap: Flapper
Exhaust Vertical: No / Raincap: Raincap
Exhaust Vertical: No / Raincap: None
Note that non-vertical exhaust configurations and fixed raincaps
interfere with pollutant dispersion and may negatively impact health
risk assessment results.