Application of the Volumetric Water Benefit Accounting (VWBA) Withdrawal Method to Incorporate Precipitation Variability for Agricultural Activities that Reduce Water Applied to Crops

This guidance document provides an example application of the withdrawal method to explicitly account for precipitation in Volumetric Water Benefit (VWB) estimates to isolate the additionality
of activities and reduce the risk of overclaiming VWBs in the context of agricultural activities.

This application of the withdrawal method reduces variability by considering average historical precipitation trends to improve consistency in VWB estimates year to year.