Water and sewer charge calculator
Water and sewer charge
Combined water charge is calculated as V × (r_water + r_sewer). Use the stated system boundary and matching input units.
Units
C=V×(rwater+rsewer)
C=V×(rwater+rsewer)
Calculator
Enter the values you know and leave one box empty. Calculate finds the empty one, the result or any input.
Worked example
Given
- V = 850 1000 gal
- rwater = 4.5 $/1000 gal
- rsewer = 6.2 $/1000 gal
C=850×(4.5+6.2)=9,095
Given
- V = 2,400 m³
- rwater = 0.9 $/m³
- rsewer = 1.2 $/m³
C=2400×(0.9+1.2)=5,040
Symbols and units
| Symbol | Meaning | Unit |
| C | combined water charge | $ |
| V | billable water volume | 1000 gal |
| rwater | water supply price | $/1000 gal |
| rsewer | sewer price | $/1000 gal |
| Symbol | Meaning | Unit |
| C | combined water charge | $ |
| V | billable water volume | m³ |
| rwater | water supply price | $/m³ |
| rsewer | sewer price | $/m³ |
Results are estimates for study and screening. Check the inputs, units and assumptions before you use them for design, billing or contract decisions.