John J. Carroll Water Treatment Plant
| John J. Carroll Water Treatment Plant | |
|---|---|
Main entrance | |
Interactive map of the John J. Carroll Water Treatment Plant area | |
| General information | |
| Status | In operation |
| Location | 84 D’Angelo Drive, Marlborough, Massachusetts, United States |
| Coordinates | 42°18′47″N 71°35′04″W / 42.313052°N 71.584402°W |
| Construction started | March 1999 |
| Completed | March 2005 |
| Opened | July 27, 2005 |
| Cost | US$340 million |
| Owner | Massachusetts Water Resources Authority |
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The John J. Carroll Water Treatment Plant (CWTP) is a water treatment plant operated since 2005 by the Massachusetts Water Resources Authority (MWRA) to treat water bound for Greater Boston. The plant is located at the town lines of Marlborough, Northborough, and Southborough, Massachusetts.