DC Water: "a peak inside one of the sand filtration tanks at McMillan, with the sand removed. This will be used to store stormwater to prevent flooding"

See this tweet and pic from DC Water regarding Bloomingdale's McMillan:

(okay, I can't see to save the DC Water pic taken with Instagram, so I can't copy it here. Click on the link below to see the filtration cell pic.)

                 

DC Water ‏@dcwater 1h

A peak inside one of the sand filtration tanks at McMillan, with the sand removed. This will be used to store stormwater to prevent flooding. http://instagram.com/p/dUz74wBwn5/

 

2:18 PM - 22 Aug 13