Indira gandhi water treatment plant - palta established year
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Hooghly River is the main source of potable surface water for the city of Kolkata supplied from the age-old Palta Water Works now rechristened as Indira Gandhi Water Treatment Plant. The Palta Water Works ,spreading over a sprawling strechh of 480 acres,was the first intake point constructed during 1864-1870 for generation and supply of water . Initiated with a humble capacity of 6 mgd (million gallon per day),filtered water was generated through sedimentation in pre and final settling tanks and slow sand filteration in the Old Series of 12 filter beds. Further addition of 24 beds with a capacity of 1 mgd per bed,was made during the period 1888-1893. In 1905,filter beds with 2 mgd capacity ,called New Series was started . Further addition took place in between 1920 and 1936 when 17 nos.of 3mgd capacity and 1 no.of 2mgd capacity filter beds,called Extension Series were introduced.
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