Critical Period Management Tools

To better assist you in managing your groundwater withdrawal permit(s), the EAA has developed a full range of online critical period tools.

Critical Period Calculator

Critical Period Calculator

Our auto-fill Critical Period Calculator allows you to accurately determine the authorized groundwater withdrawal amount available for use during times of mandatory critical period management.

Use Calculator

Critical Period Forecast Calculator

Critical Period Forecast Calculator

Our Interactive Critical Period Calculator allows you to predict and plan your groundwater withdrawal amount available for use during times of mandatory critical period management.

Use Calculator

Critical Period Usage Online Reporting System

Critical Period Usage Online Reporting System

This online form is available for users to submit their Critical Period Monthly Use Reports, as well as Annual Use Reports.

Online Report Form

EAA Meter Matters Smartphone App

EAA Meter Matters Smartphone App

This app allows users to report meter readings, manage meters and view meter reading history.