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t Water used for human needs at hospitals, nursing homes, and similar types of facilities are high priority to be maintained in an emergency. Local water allocation will need to address water used for other human needs at other types of facUities such as hotels, office buildings, and manufacturing plants. Domestic use must have priority over economic needs. Triggers for implementing Plan Components The current average day demand is 265,700 gallons and the average peak day demand for the past eight years is approximately 2.7 time the current day demand, or 715,000 gallons. The 500,000 gallons available storage capacity in the City's elevated storage tank can provide almost two days of average demand and slightly more than a half day at peak demand. Tower level is critical to maintain pressure in the distribution system. The most critical component of the Centerville system is the pumping capacity from its wells. Centerville's firm capacity is 550 gpm (0.675 MGD) with its largest well (650 gpm) out of service. Triggers for implementing plan components are based on firm capacity. The triggers (shown in the table below) are guidelines for the Emergency Evaluation Team in the event of a water supply emergency that warrants short-term demand reduction. Eliminate 5th through 2nd priority water use. Triggers to Reduce Short-Term Demand Tri erin Mechanisms When it is anticipated that demand will exceed 90% of well firm ca c' 0.608 MGD When it is anticipated that demand will exceed 100% of well firm ca c' 0.675 MGD When mandatory sprinkling ban does not keep demand below 100 % of firm ca c' . When firm pumping capacity decreases due to an emergency condition such as well contamination, er outa e brownout or natural disaster. (1) (1) Allocating water use based on the priorities stipulated in Minnesota Statute is not possible with the City's available water use data. Therefore, it is not possible to determine how much water will be saved by various demand reduction measures. Enforcement Centerville has established provisions in its City Code that allow it to place restrictions on water use and enforce any such provisions as necessary. City Code Chapter 51 regulates use of the Municipal Water System, reads, "... the Administrator is authorized to implement water use restrictions and demand reduction measures as identified' in the City's Water Supply and Emergency Conservation Plan.n As detailed in Section 51.05(C), "service may be discontinued whenever.. . the owner or occupant of the premises served.. .has violated any requirement of the city code relative thereton [NOTe Centerville has established a sprinkling restriction to odd-even days and between 10:00 a.m. and 6:00 p.m. July 3, 2007 DRAFT Centerville Wellhead Protection Plan (Part 2) Page 29