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MRWA Water Tools

Welcome to MRWA’s Water Tools! Select a calculator you would like to use, enter your numbers and get the result.

A Note About Browsers: If you find that a calculator is not providing you with immediate results, try clearing your browser cache or simply close the calculator and reopen it. As well, if you use Internet Explorer, you may need to click the Compatibility View buttons.

Download the MRWA Calculators App

Open this webpage on your smartphone and click the image below.

Water Loss Tracking Tools

Circular Break Around Pipe
Hole In Pipe
Rectangular Break Along Pipe

Special Calculators

Monthly Water Loss
Annual Water Loss Average
Well Drawdown and Specific Capacity Calculator
Percent Efficiency Calculator
Sizing A Chemical Feed Pump
Hydrant or Pipe Flush Flow Calculator
Solution Strength Mix Calculation
NPDES Permit Design Flow Exceedence

Disinfection Formula Calculators

Pipe Disinfection Formula
Tank Disinfection Formula
Well Casing Disinfection Formula

Wastewater Infiltration Calculators

Wastewater Inflow Calculator
Wastewater Infiltration Calculator – Circular Break
Wastewater Infiltration Calculator – Circular Hole
Wastewater Infiltration Calculator – Rectangular Break

Legislative Watch: Stay up to date on the latest bills of interest MRWA is tracking.