Energy and utility operations
Water treatment operating cost
Allocate measured treatment expense over delivered water volume.
Your inputs
Complete the fields for your selected method. Zero means intentionally zero, not unknown. Currency selection labels amounts; it does not convert exchange rates.
How this calculation works
cost/1000USgal = (energy + chemicals + labor + other)/(delivered USgal/1000)
Volume and cost must cover the same treatment boundary and period. This does not calculate chemical dosage, treatment effectiveness, water quality or regulatory compliance. Capital replacement and distribution costs are excluded unless entered. Use your own records for the same scope and period. Example figures are illustrative, not industry benchmarks. Results exclude income taxes and any cost you have not entered. Check the result before pricing work or committing resources.
What information do I need?
Use records for the same job, equipment or accounting period. Only the fields for your selected entry method are required. An unknown amount is not zero.
Input definitions and where to find them
- Water delivered after treatment (US gal): Use the matching measured quantity, time log, schedule or clearly stated estimate. Zero means intentionally none; an unknown amount is not zero.
- Period treatment energy expense (selected currency): Use a supplier quote, invoice, payroll record or allocated cost for the exact job or period named here. Include this amount only once.
- Actual chemical purchase cost (selected currency): Use a supplier quote, invoice, payroll record or allocated cost for the exact job or period named here. Include this amount only once.
- Period treatment labor cost (selected currency): Use a supplier quote, invoice, payroll record or allocated cost for the exact job or period named here. Include this amount only once.
- Other treatment operating expense (selected currency): Use a supplier quote, invoice, payroll record or allocated cost for the exact job or period named here. Include this amount only once.
Use the Where to find this value controls beside the inputs for available work-it-out helpers. Estimates remain your assumptions; a helper does not verify the source figures.
Worked example
Example amounts use US dollars (USD).
Example answer: Operating cost per1000USgallons is $4.00 for the illustrative inputs below.
Example inputs
- Water delivered after treatment: 1,000,000.00 US gal
- Period treatment energy expense: $1,000.00
- Actual chemical purchase cost: $500.00
- Period treatment labor cost: $2,000.00
- Other treatment operating expense: $500.00
- Operating cost per1000USgallons
- $4.00
- Treatment operating cost
- $4,000.00
These illustrative values are not recommended rates or industry averages. Replace every example input with your own figures.
Use the result well
Allocate measured treatment expense over delivered water volume. Inputs come from your own records and stated assumptions; no rates or legal limits are looked up.
Keep inputs on the same scope and time basis. Calculations retain precision internally; displayed values generally round to two decimal places, with extra precision for very small values and whole-unit rounding where required. Economic comparisons describe your supplied assumptions and do not guarantee future results.
This tool provides business arithmetic. It does not approve engineering designs, establish legal or tax treatment, select equipment or certify safe operating conditions.