(A) The Mayor or his or her designee shall monitor water supply and/or demand conditions on a daily basis and shall determine when conditions warrant initiation or termination of each stage of the plan, that is, when the specified “triggers” are reached.
(B) The triggering criteria described below are based on daily consumption in relation to the total water production capacity of the wells in service at any time or in relation to the total firm high service (booster) pump capacity in the system. The well capacity shall mean the rate of production from all wells over a 24-hour period and the total firm booster pump capacity shall mean the total volume of water that can be pumped in a 24-hour period assuming the largest pump is out of service. The city has a master water meter on each well, which monitors the total daily water demand.
(C) Utilization of alternative water sources and/or alternative delivery mechanisms. There are no alternative water source(s) available to the city.
(D) Stages.
(1) Stage 1 triggers; mild water shortage conditions.
(a) Requirements for initiation. Customers shall be requested to voluntarily conserve water and adhere to the prescribed restrictions on certain water uses, defined in § 52.07, when total daily water demand equals or exceeds 40% of the total well capacity or firm booster pump capacity for seven consecutive days.
(b) Requirements for termination. Stage 1 of the plan may be rescinded when all of the conditions listed as triggering events have ceased to exist for a period of seven consecutive days.
(2) Stage 2 triggers; moderate water shortage conditions.
(a) Requirements for initiation. Customers shall be required to comply with the requirements and restrictions on certain nonessential water uses provided in § 52.09 of this plan when total daily water demand equals or exceeds 50% of the total well capacity or firm booster pump capacity for seven consecutive days.
(b) Requirements for termination. Stage 2 of the plan may be rescinded when all of the conditions listed as triggering events have ceased to exist for a period of seven consecutive days. Upon termination of Stage 2, Stage 1, or the applicable drought response stage based on the triggering criteria, becomes operative.
(3) Stage 3 triggers; severe water shortage conditions.
(a) Requirements for initiation. Customers shall be required to comply with the requirements and restrictions on certain nonessential water uses for Stage 3 of this plan when total daily water demand equals or exceeds 60% of the total well capacity or firm booster pump capacity for three consecutive days.
(b) Requirements for termination. Stage 3 of the plan may be rescinded when all of the conditions listed as triggering events have ceased to exist for a period of three consecutive days. Upon termination of Stage 3, Stage 2, or the applicable drought response stage based on the triggering criteria, becomes operative.
(4) Stage 4 triggers; critical water shortage conditions.
(a) Requirements for initiation. Customers shall be required to comply with the requirements and restrictions on certain nonessential water uses for Stage 4 of this plan when total daily water demand equals or exceeds 70% of the total well capacity or firm booster pump capacity for three consecutive days.
(b) Requirements for termination. Stage 4 of the plan may be rescinded when all of the conditions listed as triggering events have ceased to exist for a period of three consecutive days. Upon termination of Stage 4, Stage 3, or the applicable drought response stage based on the triggering criteria, becomes operative.
(5) Stage 5 triggers; emergency water shortage conditions.
(a) Requirements for initiation. Customers shall be required to comply with the requirements and restrictions for Stage 5 of this plan when the Mayor, or his or her designee, determines that a water supply emergency exists based on:
1. Major water line breaks, or pump or system failures occur, which cause unprecedented loss of capability to provide water service; or
2. Natural or man-made contamination of the water supply source(s).
(b) Requirements for termination. Stage 5 of the plan may be rescinded when all of the conditions listed as triggering events have ceased to exist for a period of three consecutive days.
(Ord. 24-103, passed 6-18-24)