Gravity, engineering and planning: Construction begins on $300 million water treatment plant - masslive.com

WESTFIELD — The Springfield Water and Sewer Commission celebrated Wednesday the beginning of construction for its $298.2 million West Parish Water Treatment Plant, calling it the most significant public infrastructure project in the Pioneer Valley of the last 25 years.

The plant will replace 50-year-old filters and eliminate chemicals created as a byproduct of the current disinfection process in water piped to a quarter million customers in Springfield and surrounding communities. The water comes from Cobble Mountain Reservoir, which straddles the town lines of Blandford, Granville and Russell in the wooded hill towns, with the filters first built in 1909 on Granville Road in Westfield, 12 miles west from Springfield.

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