03-09-15 Regular Meeting of La Porte City Council

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Revised 2014 E. TRIGGER CONDITIONS The Public Works Director or his/her designee shall monitor water supply and demand conditions on a weekly basis and shall determine when conditions warrant initiation or termination of each stage of the Plan. The trigger conditions described below reflect system capacity limits and are based on a seven (7) day average daily demand, and include the permitted withdrawal of groundwater. 1. Mild Conditions (Stage 1) a. Water demand approaching 6,665,000 gallons/day (70% of the pumping capacity owned by the Authority at the Southeast Water Purification Plant plus allowed groundwater withdrawal). Or, b. Production at the Southeast Water Purification Plant reduced to a point such that the aggregate surface water demand of the Authority is 70% of the reduced pumping capacity. c. Stage 1 may be rescinded when the trigger conditions have ceased to exist. Rescinding any level of the Plan is at the discretion of the Public Works Director. 2. Moderate Conditions (Stage 2) a. Water demand approaching 7,618,000 gallons/day (80% of the pumping capacity owned by the Authority at the Southeast Water Purification Plant plus allowed groundwater withdrawal). Or, b. Production at the Southeast Water Purification Plant reduced to a point that the aggregate demand of the Authority is 80% of the reduced pumping capacity. c. Stage 2 may be rescinded when the trigger conditions have ceased to exist. Upon termination of Stage 2, Stage 1 becomes operative. Rescinding any level of the Plan is at the discretion of the Public Works Director. 3. Severe Conditions (Stage 3) a. Water demand approaching 8,570,000 gallons/day (90% of the pumping capacity owned by the Authority at the Southeast Water Purification Plant plus allowed groundwater withdrawal). Or, b. Production at the Southeast Water Purification Plant reduced to a point such that the aggregate surface water demand of the Authority is 90% of the reduced pumping capacity. 4