DERIVATION OF WATER RATIONING TRIGGERS
FOR THE MONTEREY PENINSULA WATER RESOURCES SYSTEM
FOR WATER YEAR 2003

(All Values are in Acre-Feet)
 
                       
   
   
   
   
   
   
   
                           
  MAY-SEPTEMBER CARRYOVER  TOTAL STORAGE  
  DEMAND STORAGE REQUIRED ON MAY 1  
   
  Percent of Annual Demand Water Rationing Stage   
  100% 67% 33% 0% 4 5 6 7  
  Imposed if storage is less than:  
                           
   
  CAL-AM 7,749 15,285 10,241 5,044 0 23,034 17,990 12,794 7,749  
   
  NON CAL-AM 2,055 3,216 2,155 1,061 0 5,271 4,210 3,116 2,055  
   
  TOTAL 9,805 18,501 12,396 6,105 0 28,306 22,200 15,910 9,805  
   
  Text Box: Notes: 1. The May-September period refers to the remainder of the current water year. 2. Carryover storage refers to the volume of usable surface and ground water that is in storage at the end of the current water year and is projected to be available for use at the beginning of the following water year. 3. Total storage refers to the combination of demand remaining from May 1 to the end of the current water year and carryover storage for the next water year that is required to avoid imposing various levels of water rationing. The values in bold type represent the storage triggers that would be used for the system in Water Year 2003. The values are based on the current production limit for Cal-Am set by the State Water Resources Control Board in Order No. WR 95-10, and the production that was reported for non Cal-Am users in Water Year 2002. 4. The rationing triggers are based on physical water availability and do not account for legal or environmental constraints on diversions from the Carmel River system.