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Water Supply Self-Certification
State Water Board Emergency Regulation 2016 Self-Certification
On May 18, 2016, the California State Water Resources Control Board adopted an emergency water conservation regulation that will be in effect through January 2017. The regulation requires local water agencies to develop conservation standards that ensure a three-year supply assuming three more dry years like the ones the state experienced from 2013 through 2015. The regulation also calls for agencies to self-certify and provide data regarding supply reliability.

The San José Municipal Water System self-certification analysis determined water demand by averaging the water it supplied in calendar years 2013 and 2014. Water supply through 2019 was based on data provided by our wholesalers, the Santa Clara Valley Water District and the San Francisco Public Utilities Commission, and assumes drought conditions similar to the last three years.

Based upon this calculation, if similar drought conditions were to continue for the next three years, San Jose Municipal Water System would have sufficient water supplies to meet the demand. The City of San José’s Municipal Code has water use restrictions that are in effect at all times, regardless of a drought declaration. These water use restrictions as well as ongoing water conservation programs are sufficient for continuing to meet California’s requirements for water use reductions. As a result, San Jose Municipal Water System is not required to further reduce water use at this time.

Potable Water Demand (acre feet)
2013: 21,754
2014: 19,340
Average: 20,547

Projected Water Supply (acre feet)
2017: 20,630
2018: 20,477
2019: 20,923

Projected delta between supply and demand

Surplus: 376 acre feet

Conservation Required: 0%

Conservation Target: 0%