FLOOD02951 - Laserfiche WebLink

Home Browse Search

dt hOW water is treated at the Foothills Treatment Plant. Water from the South Platte River, stored at Strontia Springs Dam. is dIverted into a 3.4 mile tunnei and brought by conduit to the plant. The woter first brought to theheadc works where hydroelectric poweris generoted forplbl'lt operation and surplus sale. trom the headuuorks, UJOter enters the chemical building where alum, lime and chlorine may be added as required. In eightftocculation and sedimen- tbtion basins. particles of sus- pended materIal are agglo- meroted by chemicai flocculotion and removed through sedimentation. The basins feature three-stage mechanical fiacculatars and continuous mechanical sludge collectors. After the particles settle. the water enters f6 dual media rapid sand fiiters. which con treat 250 million gallons a day. Since 011 necessary under- ground piping was installed during the first phose of con- struction, the plant eventually will be able to treat 500 mil- iion gallons a day. Filter incre- ments con be added os popu- lation and need for treated .... ~ ~ 1'., , I foothills Control Aoom Ill' water increase. From the filter bedsUJOter flows by gravity to two 25 mil- lion gallon underground stor- age reservoirs or it is directed into 0 lOS-inch diameter con- duit more than nine miles iong. continuing in a 90-inch dia. meter conduit for the remainder of the nearlVl 6 miies to the Denver orea. Water con also be delivered from Foothills to the city through 0 conduIt connecting Foothills to the Kassler Filter Plant. in addition to the Foothills Treatment Plant. woteris treated at three other treat" ment plants operated by the Denver Water Deportment in a