IRWD’s Water Shortage Contingency Plan (WSCP) , adopted in June 2021, allows the District to strategically reduce water use through a number of potential actions that are staged dependent upon the severity of water shortages. The WSCP incorporates six standard water shortage levels beginning with Level 1 and corresponding to progressive ranges of up to 10%, 20%, 30%, 40%, 50%, and greater shortages (Level 6).

Please note: This calculator is for estimating only. Your actual bill will vary based on the number of days in the billing cycle. If you need assistance or have specific questions about your water bill, please contact an IRWD Customer Service Specialist at or call 949-453-5300.