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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 /> <br />NORTH FORK TO JUNIATA DIVERSION ALTERNATIVES <br /> <br />The City Ditch has been used to del iver North Fork water to Purdy Mesa <br />Reservoir since 1967. Originally constructed as an earthen ditch, a concrete <br />1 in i ng was 1 ater ins ta 11 ed because of bank ins tab il ity caused by seepage <br />through the ditch bank. In 1978, an 18" corrugated aluminum pipe was laid in <br />the bottom of the ditch and backfilled to minimize maintenance requirements; <br />(hereinafter, therefore, the City Ditch will be refered to as the City <br />Pipeline). The pipe was installed at an average grade of 1.4% and has an <br />estimated maximum capacity of 7 cfs. There are no air release valves over the <br />entire 3600 foot length of pipeline. Due to air entrapment and silting, the <br />present capacity is approximately 5-6 cfs. <br /> <br />3.1 DIVERSION RIGHTS <br /> <br />The City's diversion rights are those rights that legally enable the City to <br />remove a pre-detennined quantity of water from a watercourse, such water to be <br />ultimately delivered to the City for municipal use. <br /> <br />Of particular importance to the City are the snowmelt rights upstream of the <br />B,A & J Ditch. These waters would naturally flow to Kannah Creek but can be <br />diverted through the B,A & J Ditch into the North Fork drai nage. Although <br />originally decreed for irrigation purposes, the City's right to municipal use <br />of these waters is also documented by court decree as bei ng a matter "not <br />likely to be contested." The City's alternative is a costly one, in that the <br />same waters could be allowed to flow into the Kannah Creek and diverted to <br /> <br />3-1 <br />