(original negative is property of the Central Connecticut Regional Water Authority and preserved in their archives at 90 Sargent Drive, New Haven, Connecticut 06511-5966), photographer and date unknown. Sand and gravel screening equipment used during the construction of the slow sand filter circa 1903. - Lake Whitney Water Filtration Plant, Filtration Plant, South side of Armory Street between Edgehill Road and Whitney Avenue, Hamden, New Haven County, CT

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