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<br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br /> <br />.. Chapter 3 <br />.. WATER RESOURCES <br /> <br />WATER REQUIREMENTS AND USE <br /> <br />The City of Trinidad water system supplies potable water <br />for municipal and industrial uses. The system currently <br />serves approximately 80 percent of the Las Animas County <br />population. About 70 percent of the county's residents <br />live within the City of Trinidad. The population now <br />served by the Trinidad water system is approximately <br />12,800. There are currently requests for another 700 taps <br />into the system. The City is waiting for approval of the <br />treatment plant expansion before granting any more taps; <br />the largest request for more taps originates from the City <br />of Starkville. <br /> <br />Population growth in the area will also increase the <br />demand for water from the City of Trinidad system. <br />Figure 2 shows a plot of the projected growth rate for Las <br />Animas County. It is assumed that this additional population <br />will be served by the water system. <br /> <br />Table 1 contains a summary of the peak daily, peak weekly, <br />and peak monthly water requirements for years 1980 through <br />2010. The peak hourly demands are not applicable to this <br />project, since they are handled by the treated-water <br />storage reservoirs in the City. The water treatment plant <br />should be designed to handle the peak daily flow in the <br />project design year 2010. This flow is shown as 8.1 mgd. <br /> <br />The average annual water consumption on a per-capita basis <br />is approximately 140 gallons per capita per day (gpcd). <br />This value is typical for a small city with some water <br />conservation measures implemented. The City of Trinidad <br />has installed water meters and has set up a rate schedule <br />to encourage conservation. It is therefore assumed that a <br />consumption rate of approximately 140 gpcd will be typical <br />throughout the life of this project. To decrease the <br />water consumption, more drastic conservation measures, <br />such as rationing, would have to be instituted. It is <br />assumed that these practices would only be implemented <br />during emergency situations or periods of drought and <br />therefore would not affect the design capacity of this <br />project. <br /> <br />The summer of 1980 was one of the driest on record. <br />During this period the treatment plant treated more water <br />than any other year on record. During the month of July <br />the treatment plant treated an average daily flow of <br />5.3 mgd, of which 0.3 mgd was estimated to be used for <br />inplant use. The peak daily flow rate for the month was <br />5.5 mgd. The North Lake transmission line's maximum flow <br />capacity is 5.9 mgd. This year's maximum left slightly <br /> <br />5 <br />