11 (1) The owner or operator of a wastewater system that — during the previous calendar year in respect of the calendar year, quarter or month in question — deposited via the system’s final discharge point an average daily volume of effluent set out in column 1 of the table to this subsection must, for that calendar year, quarter or month, take at the final discharge point a grab sample of effluent at the minimum frequency set out in column 2.

The BAT-associated emission levels for dust, determined as the average over the sampling period (discontinuous measurement, spot samples for at least half an hour), are:

where G EDFW ,i = instantaneous equivalent diluted exhaust mass flow rate (kg/s) G EXHW ,i = instantaneous exhaust mass flow rate (kg/s) q i = instantaneous dilution ratio G TOTW ,I = instantaneous diluted exhaust mass flow rate through dilution tunnel (kg/s) G DILW ,i = instantaneous dilution air mass flow rate (kg/s) f = data sampling rate (Hz) n = number of measurements (b) where M f = particulate mass sampled over the cycle (mg) r s = average sample ratio over the test cycle where where M SE = sampled exhaust mass over the cycle (kg) M EXHW = total exhaust mass flow over the cycle (kg) M SAM = mass of diluted exhaust gas passing the ...[+++]particulate collection filters (kg) M TOTW = mass of diluted exhaust gas passing the dilution tunnel (kg) NOTE: In case of the total sampling type system, M SAM and M TOTW are identical.