This calculator allows you to enter your authorized amounts and calculate your current reduction. If you would like the ability to predict potential reductions please use the Interactive Calculator. For the Interactive Calculator Click Here

Stage % Reduction Days in DM/CPM  
I 20  
II 30  
III 35  
IV 40  
Enter your total authorized annual groundwater withdrawal rights here:
Your total adjusted authorized annual groundwater withdrawal rights available is:

For more information on how CPM reductions are calculated click here.

For information regarding trigger levels and CPM definitions click here.