DC Water CEO David Gaddis resolved to do everything possible to reclaim the Potomac River after last month’s disastrous sewer pipe break, he said in an open letter to the community Wednesday.
D.C. Water CEO David Gaddis resolved to do everything possible to reclaim the Potomac River after last month’s disastrous sewer pipe break, he said in an open letter to the community Wednesday.
The failure in a section of a 72-inch sewer pipe, known as the Potomac Interceptor, resulted in the release of hundreds of millions of gallons of raw sewage into the river just inside the Beltway along the C&O Canal in Montgomery County, Maryland. It’s considered the largest spill of wastewater in U.S. history.
“The Potomac River is a shared natural treasure, and any event that threatens its health understandably causes concern, frustration, and a sense of loss. Those feelings are not only valid — but they are also shared by all of us at DC Water,” Gaddis said in the letter.
The letter went onto explain that on Jan. 19, crews noticed unusual activity in security cameras monitoring an odor control facility along the C&O Canal. Upon inspection, crews discovered the break.
In the days since the discovery, D.C. Water personnel and contractors worked to “contain the overflow, protect public safety, and begin repairs.”
A bypass system was constructed to pump waste around the damaged area of the pipe and reinsert it into a section of the structure downstream.
Complicating the repairs was the discovery last week of a large rock dam blocking a significant section of the pipe about 30 feet south of the break. D.C. Water is waiting for five large capacity pumps to arrive from Texas and Florida to increase pumping capacity. They then plan to build a bulkhead near the break to divert more water so workers can safely remove the boulders.
D.C. Water expects this to take up to an extra six weeks to accomplish.
Gaddis noted that DC Water will be dedicating resources not only to the repairs but also to an environmental restoration program to mitigate the damage that’s already been done.
The letter detailed a $625 million investment to rehabilitate the Potomac Interceptor as part of a 10-year, $10 billion Capital Improvement Program.
Gaddis pointed out that several tunnels they’ve built along the Northeast Boundary, and are currently building along the Potomac, have resulted in billions of gallons of combined sewage being prevented from entering the Anacostia and Potomac Rivers through the utility’s Clean Rivers Project.
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