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<br />. <br /> <br />SECTION V <br />REVIEW AND EVALUATION OF EXISTING FACILITIES <br /> <br />GENERAL <br />The present Carbondale water system is quite simple. The water supply, <br />which is provioed by a number of springs in the Nettle Creek Basin, is <br />collected in rough buxes and tied into a transmission line. The trans- <br />mission line carries the water by gravity to the dist.ibution system and a <br />present 250,000 gallon storage tank. A chlorinator meter and pressure re- <br />ducing station are located at approximately the mid-point of the transmission <br />line. This station provide, the only water treatment in the system, which is <br />disinfection. The system pressure is governed by the storage tank elevation. <br />The supply springs operate Lnrestricted and the storage tank 'Jverflows to <br />waste when the supply exceecs demand. <br /> <br />. <br /> <br />SUPPLY FACILITIES <br />The Nettle Creek Basin source is presently captured at a number of springs. <br />Three of these springs are on the old system and three have been collected <br />only recently. The principal structure is actually a headwall constructed <br />across the South Fork of Nettle Creek just at the point where the South <br />Fork surfaces. This is a concrete structure and is very efficient. Most <br />of the water in the system is collected at this point. <br /> <br />Two smaller spring boxes are located downstream of the main headwall that <br /> <br /> <br />collects seeps on the side hill. These structures are concrete and consist <br /> <br /> <br />of a spring box with a collecting pipe extending from the box into the hill- <br /> <br /> <br />side. Each of these springs produces in the range of 30 gallons per minute. <br /> <br />In 1974, three new spring boxes were constructed on the main stem of Nettle <br /> <br /> <br />Creek using steel tanks as collectors. These springs produce in the range <br /> <br /> <br />of 50 gallons per minute. <br /> <br />. <br />