As one reader points out, Wellesley’s diversified water supply strategy played a key role in keeping our water clean despite the main break. From a recent town report:
“In the year 2008 seventy percent (70%) of our water came from our local well supplies and thirty percent (30%) came from the Massachusetts Water Resources Authority (MWRA). The availability of both local and regional water supply sources provides diversity and reliability.
Wellesley’s local water supplies consist of seven wells located within the Town. Three wells tap into the Waban Brook alluvial aquifer and four wells tap into the Rosemary Brook alluvial aquifer. All the water pumped from the seven wells is treated at our three corrosion control and iron/manganese removal facilities.”