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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100 W e l l e s l e y W e s t o n M a g a z i n e | s u m m e r 2 0 1 6 Before we enter Wellesley's water supply, our sub will be scrubbed, filtered, and anointed with protective chemicals at one of the town's three treatment plants. owned water lines, by the way, are made out of iron, steel, or concrete; the only time the water may come into contact with lead is through pipes, soldered joints, or brass fixtures within your household plumbing system. The last leg of our sub's journey will be by one of two routes: the 1940s-era Hultman Aqueduct or the MetroWest Water Supply Tunnel, which opened in 2003. The Hultman runs closer to the surface; the MetroWest descends as deep as 500 feet. At the entrance of each tunnel, the water passes through storage tanks. Together, these tanks provide 44 mil- lion gallons of backup should the treatment plant temporarily shut down. Running parallel, roughly along the Mass Pike, the waterways meet 18 miles east at the Norumbega Covered Storage Tank in Weston. Located underground, the concrete-encased tank is 25 feet deep, covers 17 acres and holds 116 million gallons of water. From here, water mains fan out to serve Greater Boston. The Norumbega tank, supplemented by smaller storage facilities around the city, contains enough water to supply residents for one day. But communities west of Route 128, including Wellesley and Weston, tap into the sup- ply lines before they reach Norumbega. Wellesley: Let's Go to the Well If you live in Wellesley, where you get your water depends on the time of year. In summer, when demand more than doubles to as much as 5 million gallons a day, the town supple- ments its own supply with that of the MWRA. In winter, the town relies on two aquifers. They are tapped by a total of 10 wells, each consisting of a perforated pipe, 2 feet wide and 50-60 feet deep. The town owns the property immediately around the wells. People who live within the watersheds of the aquifers must abide by special land-use rules. An aquifer consists of gravel and stone permeated with water that originally fell as rain or seeped in from nearby brooks or ponds (Morses Pond is near one of the aquifers). If our

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