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<br />4-.:-,. ~.. <br /> <br />."." <br /> <br />publication of notice of the City COllncil'sorder once in a daily newspaper published in <br />the city." <br /> <br />A time-of-day lawn watering restriction has been imposed at other times in other cities, <br />including Greeley. This type of restriction can have one or both of the following <br />objectives; (1) improving the efficiency of the public's irrigation practices, or (2) <br />managing the peak demand on the water system. In general, lawn watering restrictions <br />to improve irrigation efficiency would prohibit watering during the hotter, windier, and <br />less humid times of day; that is, the afternoon hours. On the other hand, lawn watering <br />restrictions with the intention of flattening out the peak daily demand would prohibit <br />watering during the highest demand time, typically the mid-evening hours. <br /> <br />An afternoon watering restriction would force more people to water in the evening or the <br />morning. This would result in more efficient irrigation, thus a lowered total demand. <br />There would also be a second reason that this measure would result in a lowered total <br />demand. As a result of more lawn watering during the evening, the water pressure would <br />decrease somewhat. A likely result would be less water used for lawn watering. <br /> <br />An every-third-day watering restriction would likely be successful in flattening the daily <br />demand peak, since only one third of the landscapes would be irrigated on anyone day. <br />However, it may not necessarily result in decreased total water use, since the landscape's <br />total water requirements remain the same. In fact, the total water use in this case may <br />actually increase, if people over-compensate by irrigating more than necessary to allow for <br />the increased duration between irrigations. <br /> <br />14. Enact mandatory lawn watering restrictions in the form of (a) a time-of-day restriction, or <br />(b) an every-third-day restriction. <br /> <br />The same lawn watering restrictions presented to the public as being voluntary, can be <br />mandated by ordinance. Mandatory restrictions would have the same type of effects as <br />described above for vol~..restrictionsJw.we.v.e~eegree-of-the~lS--wom.oDe-. <br />- - ,. - greaterfOfllie ease- of mandatory restrictions. ' <br />15. Reduce the pressure in the high-pressure areas of the city. <br /> <br />The objective of lowering high delivery pressures (greater than 80 p.s.L) is to decrease <br />the amount of water used from showers, faucets, and sprinkler systems while, hopefully, <br />still providing equivalent performance. This pressure-reduction could not be accomplished <br />on a system-wide basis; it would have to be done with pressure regulators on individual <br />homes. <br /> <br />Several studies have been performed to assess the water conservation benefits of pressure <br />reduction. They have concluded that a 30 to 40 p.s.L decrease in water pressure results <br />in about a 5 % decrease in water use by the population affected. There are very few <br />locations in Fort Collins where the existing water pressure is high enough to be able to <br /> <br />11 <br />