Application Rate Calculator   

Tools and Apps


A spreadsheet program that performs monthly water balance to see if application rate will exceed available soil moisture storage of a site planted in grass.


Guy Fipps 

Extension Ag Engineer  


207B Scoates Hall
College Station, TX 77840

The Application Rate Calculator was developed to assist the Wastewater Permitting Section at Texas Commission on Environmental Quality (TCEQ) in reviewing wastewater application permits. The calculator creates a 12 month water balance to determine if a specified amount of wastewater can be applied over an area each month without creating an over-saturated field or runoff.

The tool is available for anyone to download to assist in completing a wastewater application permit. In depth training on the calculators use can be provided by attending the Permitting of Alternative Water for Irrigation short course through the Texas A&M School of Irrigation Short Course Program.

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