The District’s drought management program is based on the drought trigger methodology that was adopted and implemented in February of 2006. Upon drought declaration by the Board, each District permittee is required to implement the measures of their adopted UDCPs (see below) to obtain the mandatory pumpage reductions. Pumpage reductions are determined by the permit type and the prevailing drought stage as outlined in the following table.
In accordance with District Rules, non-exempt well owners must develop both a User Conservation Plan (UCP) and User Drought Contingency Plan (UDCP). The UCP outlines daily usage guidelines that, when followed, will maximize the utility of water withdrawn from the aquifer. The guidelines are to be implemented at all times and may only be replaced by more restrictive requirements as outlined in the UDCP.
While it is the District's hope that conservation measures will help prevent drought, it is imperative to plan for adverse conditions. The intent of the UDCP is to set forth daily usage guidelines for the voluntary Water Conservation Period and the three drought severity stages: Stage II Alarm Drought, Stage III Critical Drought, and Stage IV Exceptional Drought. The UDCP contains a description of activities outlined for each drought stage and a chart of target monthly pumpage amounts based on seasonal trends of usage and authorized withdrawal amounts. Permittees with Conditional Production permits must also develop a UDCP to set forth additional demand reduction measures and identify alternative water sources to achieve further reductions if necessary. Notification of drought will occur through direct notice from the District, press releases, and the District website.
These plans are not designed to punish, stigmatize, or criticize anyone about their usage of water. Their sole intent is to maintain an adequate supply of water, especially during District-declared drought stages that occur periodically.
Template plans are available below. Pumpage charts are available upon request. Please contact the Distict for more information.
How to Use the Pumpage Charts
The primary component of your user drought contingency plans (UDCP) for managing your pumpage while in drought is the monthly pumpage chart. This chart tells you everything you need to know about how much pumpage is allowed for each month and for each drought stage. It works by establishing a baseline pumpage volume for each month based on the typical usage distribution for specific types of wells (e.g. public water supply, irrigation, industrial). The 20%, 30%, and 40% curtailments are calculated from this baseline for Stage II Alarm, Stage III Critical, and Stage IV Exceptions Drought respectively. For each month of the year, look at the corresponding column for the prevailing drought stage and the volume indicated is the maximum allowable pumpage for that month.
See the sample chart below. It represents a fictitious public water supply system (Water-Mart WSC) with historical permitted pumpage of 10,000,000 gallons per year. In this example, the cell highlighted indicates the maximum amount of monthly pumpage for May during Stage II Alarm Drought. Please feel free to contact District staff if you need any assistance with your pumpage chart or any other component of your UDCP.