The fee formula for each assessable pollutant can be represented as
Pollutant load fee = (AL x PW x CZ x PFU) / 10,000
or, where AL is greater than the FRT
Pollutant load fee = ((2AL - FRT) x PW x CZ x PFU) / 10,000
- with the portion of the load in excess of the FRT (fee rate threshold) charged at double the rate.