04/07/2008 Council Packet - Laserfiche WebLink

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• • • WS — Item X. 5 WORK SESSION STAFF REPORT Work Session Item 4. Date: April 7, 2008 To: City Council From: James E. Studenski, City Engineer Re: Water Emergency and Conservation Plan (Amendment of Water Use Restriction Ordinance) Background This is a follow -up to the March 24, 2008 City Council Meeting discussion regarding the water use restrictions amendment to the Lino Lakes City Code. To gain a better understanding of water use restrictions around the twin city area, we reviewed water use restrictions of approximately fifty other cities. Of those cities reviewed, we found that the odd / even restriction was the only method used for reducing peak demand. Attached is a breakdown of our search for the north metro cities sprinkling restrictions. The majority of cities that do not restrict the amount of days residents can water are first ring suburbs and the core cities of the metro area, which have established lawns, smaller lot sizes, mature trees and meet DNR benchmarks. Our search for water use restrictions found that other states have some more stringent water use restrictions, for example allowing only one to three days a week for watering. The odd / even water use restrictions are instituted to reduce the peak day production, as well as to minimize the chance of shortfalls during those peak water use periods. Lino Lakes' peak day production averages a minimum of four times our average winter day production and has been as much as seven times our average winter day production. Attached is a graph which shows the Daily Peak Demand comparison of a week in March and a week in June last year. This demand can compromise the city's ability to provide adequate water pressure, storage capacity, reliable public water supply and fire protection reserves. If peak day production averages continue to increase, the City will have to invest in additional water system infrastructure and implement planned improvements ahead of schedule. The addition of Well #6 to the City's water system infrastructure is projected to cost $800,000 — a significant investment for equipment that may only be running a few weeks a year to aid the water system during peak production. 1