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Safeguarding our Water Source, the Potomac River
Safeguarding our Water Source, the Potomac River
High-quality drinking water begins with healthy waterways. This year’s Drinking Water Week reminds us that it is important we “Protect the Source” of our water.
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April 24, 2023

Monday 9:00 AM

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Tunnel Boring Machine named Mary undergoing Factory Acceptance Testing
Factory Testing Complete on DC Water’s first tunnel boring machine for the Potomac River Tunnel

Her name is Mary and she’s a tunnel boring machine (TBM) capable of cutting through hard rock and boring a tunnel 21 feet in width.

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A helicopter lowers a drill rig to workers on the Potomac River.
DC Water begins drilling in Potomac River to explore options to rehab underwater sewer line
When one of your major sewer lines runs through the Potomac River, a backhoe and trencher won't do. That's why we've got helicopters carrying a 14-ton drill and workers suspended midair over the Potomac.
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319th Meeting of the Board of Directors
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May 1, 2025
Thursday, 9:30 AM
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