WellesleyWeston Magazine

SUMMER 2016

Launched in 2005, WellesleyWeston Magazine is a quarterly publication tailored to Wellesley and Weston residents and edited to enrich the experience of living in two of Massachusetts' most desirable communities.

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sub starts out in the aquifer, we'll eventually be drawn through a hole in the well shaft and then pumped to the surface. You would think that coming from under- ground, the water would be safe for use. But while untainted by infectious agents like those that the MWRA eradicates at its Carroll treatment plant, the well water does contain minerals such as iron and manganese that it picks up as it seeps through the ground. These minerals are the ingredients of hard water, which can taste foul and stain sinks, toilets, and laundry. Before we enter Wellesley's water sup - ply, our sub will be scrubbed, filtered, and anointed with protective chemicals at one of the town's three treatment plants. At the first stage, the water is prepped with bleaching agents that promote distillation of the miner- als. Then it enters a vertical steel tank, trick- ling down through layers of anthracite, green sand, and garnet sand that absorb 95 percent of the minerals. Next, the water is doused with fluoride (must keep those teeth healthy!) and plunged into an aeration tank. The turbulence removes carbon dioxide, which otherwise would com- bine with the water to form carbonic acid. As you may recall, acidic water is corrosive, and corrosion can cause dangerous stuff like 101 s u m m e r 2 0 1 6 | W e l l e s l e y W e s t o n M a g a z i n e P H O T O S B Y M E D I A B A K E R Y A Fantastic Voyage

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