Leadership

DOUBLE SAND FILTRATION OF WATER AT SOUTH NORWALK

Issue 16 and Volume 58.

DOUBLE SAND FILTRATION OF WATER AT SOUTH NORWALK South Norwalk, Conn., is a city of about 10,500 people, situated on Long Island Sound, forty-two miles from New York. A public water supply was introduced in 1876 and this supply has been enlarged from time to time by the acquirement of various new sources and the construction of new reservoirs. The total population supplied is about 18,000, other communities than South Norwalk receiving this water. The water system includes ten square miles of watershed, 500 acres of land and four reservoirs with a capacity of 700,000,000 gallons. The two principal reservoirs are City Lake Reservoir and Rock Lake Reservoir. The consumption of water is large for the population supplied, averaging about 2,500,000 gallons daily or about 200 gallons per capita. Few meters are installed. The water of the South Norwalk reservoirs has through many years been subject at times to enormous…

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