SurchargeB = [(B-175)
x .00834 x Vu] x Bc
| |
SurchargeS = [(S-360)
x .00834 x Vu] x Sc
| |
SurchargeP = [(P-4) x
.00834 x Vu] x Pc
| |
SurchargeB = Surcharge
for BOD
| |
SurchargeS = Surcharge
for Suspended Solids
| |
SurchargeP = Surcharge
for Total-P
| |
Bc = Costs for treatment of a unit (pound) of
biochemical oxygen demand (BOD)
| |
B = Concentration of BOD (mg/l)
| |
Sc = Costs for treatment of a unit (pound) of
suspended solids
| |
S = Concentration of suspended solids (mg/l)
| |
Pc = Costs for treatment of a unit (pound) of
total phosphorous
| |
P = Concentration of total phosphorous (mg/l)
| |
Vu = Billable flow volume in thousands of gallons
|