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LPPD000384
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Last modified
3/9/2011 11:23:36 AM
Creation date
3/26/2007 10:33:24 PM
Metadata
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Template:
Loan Projects
Contract/PO #
C150180
Contractor Name
Pinewood Springs Water District
Contract Type
Loan
Water District
4
County
Larimer
Loan Projects - Doc Type
Feasibility Study
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<br />.~.~ <br /> <br />.. '. <br />. , <br /> <br />,,~-"-.. <br />,:, <br />',,;. , <br /> <br />.: <br /> <br />. <br /> <br />nario was assumed in the Planning Document whereby the River would be <br />running for four months and would be dry for eight months. During the four <br />month period, 50 gpm would he conveyed to the plant via the infiltration <br />gallery for ultimate delivery to the distribution system, with an additional 100 <br />gpm to be pumped from the River with the new station to the reservoir. <br /> <br />It is planned that the pUIIip station will be constructed of reinforced concrete, <br />and the pumps could either be short shaft turbines, or sublp.ersibles. <br /> <br />At present, the existing water treatment facility operates on single phase pow- <br />er. However, in anticipation of the higher horsepower requirements related to <br />the proposed exp-ansion, three phase power will be extended to the plant from <br />its present routing along Highway 36. ' <br /> <br />5) Raw Water Fill and Draw~ransmission System <br />/ ' . ' . <br />Approximately 6000' of@,' A WW A C-900 PVC transmission line will be used <br />to convey the ~ 00 gpm of'/raw water to the reservoir while the River is running. <br />Under the above scenario, this same line would then return raw water to the <br />treatment plant by gravity from the reservoir, approximately 200' higher than <br />the plant, at a rate of 50 gpm during the eight month period of drought for <br />treatment and delivery to the distribution system to ensure an uninterrupted <br />supply to the cOmlnunity during the drought. <br /> <br />At this point such assumed duration of drought and related flow rates are strict- <br />ly conceptual, consistent with the intended level of accuracy of the Planning , <br />Document, and would be subject to adjustments for considerations such as <br />evaporation, and the actual time available to the District to withdraw the high- <br />er rate from the River, as well as the right to do so, with these issues currently <br />being investigated. In this regard, a recently completed Water Availability <br />Study done by McGlaughlin Water Engineers has determined that there is a <br />positive rate of withdrawal available from the River to fill the reservoir. <br /> <br />6) Surge Tank <br /> <br />As part of the raw water fill and draw system will be a surge tank located at <br />the site of the treatment plant to stabilize the return flow from the reservoir <br />before it is sent to the micro-filtration units. It is planned that it, too, will be <br />constructed of reinforced concrete. <br /> <br />33 <br />
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