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.
End of the Year Critical Period Calculator
Our interactive Critical Period Calculator allows you to determine how much water you need to have authorized to cover your total use and total critical period reductions for the year.
Please note, that this calculator is only available from December 31 to January 31, when we know the reductions for the year.
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.
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.
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.
EAA Meter Matters Smartphone App
This app allows users to report meter readings, manage meters and view meter reading history.
Critical Period
Notice of Intent to Finish a Crop Form
Attention irrigation permit holders, please download the Notice of Intent to Finish a Crop form here and submit no later than December 1st. Forms can be emailed to imartinez@edwardsaquifer.org or can be submitted electronically via the EAA’s Online Reporting System that can be found at https://www.edwardsaquifer.org/edwsoftware/other_user/login.