The Winchell Reservoir in Granville was built in 1899. Its capacity is more than three million gallons. This reservoir was designed to supply water to the Sackett Distribution Reservoir, located in Southwick at the site of the Water Filtration Plant. It no longer is used to supply water.

Demand for water continued to grow over the next 30 years. By 1929 the capacity of the Winchell Reservoir was inadequate for the city’s needs and was abandoned, and a much larger dam and reservoir was constructed. The size of this dam and reservoir made this construction an amazing engineering achievement of its time. Water now flowed from this reservoir to the Sackett Reservoir in Southwick and then into Westfield. This system ran solely on gravity. From

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