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Table 5-5.City of Pleasanton Water Shortage Contingency Plan Stages Stage Expected Voluntary or Reduction Mandatory l Up to 20% Voluntary 2 Up to 20% Voluntary or Mandatory 3 Up to 35% Mandatory _ 35%or more Mandatory 5.6.1.1 Stage 1—Minimal Reduction Stage 1 of the Water Shortage Contingency Plan is considered appropriate for declaration under conditions where there is sufficient uncertainty concerning water supplies for the year or the next few years that it would be prudent for water customers to conserve local water supplies so the supplies may be used to meet future year water demand. 5.6.1.2 Stage 2—.Moderate Reduction Stage 2 is considered appropriate for declaration under conditions where there are definable events that lead to a reasonable conclusion that in the current and/or upcoming water years, water supplies may not be adequate to meet all customer water demands. 5.6.1.3 Stage 3=Severe Reduction Stage 3 is considered appropriate for declaration under conditions where there are definable events that lead to a firm conclusion that in the current water year, water supplies will not be adequate to meet customers' water demand. 5.61.4 Stage 4—Critical Reduction Stage 4 is considered appropriate for declaration under conditions where a Stage 3 shortage had been in effect and the reduction goal is not being met or new definable events require increasing the reduction goal. 5.6.2 Catastrophic Water Supply Interruption The City's Emergency Water Plan(revised May 2010)specifies City Council,the Director of Emergency Services(City Manager), or the Director of Operations Services has the power to proclaim a Local Water Emergency. As defined in the City's Water Shortage Contingency Plan, if there were a major failure of supply, storage or facility distribution, a declaration of mandatory water use restrictions would be City of Pleasanton 5-9 June 2011 2010 Urban Water Management Plan