Formula
for Approval Fee Calculation:
Approval Fee = Base Fee + Variable
Fee
Components of Fee Calculation
Base Fee: $100.00
Variable Fee: = annual loading (tonnes)
x cost/tonne
Annual Loading: (Contaminant Concentration) X (Discharge
Rate) X (Frequency) = Tonnes of Contaminant per year.
Cost per Tonne: Selected from the appropriate section
of the above tables.
Examples of Variable Fee Calculation:
(Annual Loading expressed as tonnes/year) X (Cost per
tonne of contaminant) = Variable Fee
a) Approval request: 4000 tonnes of
refuse to landfill per year
Annual loading = 4000 tonnes
Cost/tonne of refuse = $0.70
Variable fee = (loading) x (cost) = (4000 tonnes) x
($0.70/tonne) = $2800.00
b) Approval request for a sewage effluent discharge:
BOD at a concentration of 45 mg/L; Flow = 1000 m3/d;
Frequency = 365 days/year
Loading = (45 mg/L) (1 g/1000 mg) (1 kg/1000 g) (1 tonne/1000
kg) (1000 L/1 m3) (1000 m3/d) (365
d/y)
Loading = 16.425 tonnes/year
Cost/tonne of BOD = $19.36
Variable fee = (concentration) x (flow) x (frequency)
x (cost)
Variable fee = (16.425 tonnes/year) x ($19.36) = $317.99
A Variable Fee should be calculated for EACH parameter
from each discharge source. The TOTAL variable fee is the
SUM of all fees for each parameter. Please include all
written calculations with the payment. This will be used
for verification purposes. Written calculations should
identify discharge source, concentration parameters, frequency,
any conversion factors and cost per tonne, the total variable
fee and a total fee summary.
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