Bloomingdale in Northwest Washington in Washington, District of Columbia — The American Northeast (Mid-Atlantic)

Filter Bed

McMillan Sand Filtration Plant

— 1905-1986 —

Filter Bed Marker image. Click for full size.

Photographed by Shirley A Stirling, April 8, 2026

1. Filter Bed Marker

Inscription.
This site once included 29 concrete filter beds. Water entered from the top, then seeped through 50 inches of sand and gravel. Clean water collected in an iron drain below the filter bed, ready for distribution.

Topics. This historical marker is listed in these topic lists: Charity & Public Work • Industry & Commerce • Natural Resources. A significant historical year for this entry is 1904.

Location. 38° 55.37′ N, 77° 0.6′ W. Marker is in Northwest Washington in Washington, District of Columbia. It is in Bloomingdale. It is on North Capitol Street Northwest north of Channing Street Northwest, on the right when traveling south. Touch for map. Marker is at or near this postal address: 10 Lower Service Ct NW, Washington DC 20001, United States of America. Touch for directions.

Regionally, this marker is in the Washington Metropolitan Area.

It is also in the American Northeast,

in the Upper South,

in the Mid-Atlantic,

in the Tidewater,

and in the Chesapeake Bay Region.

Globally, it is in North America,

the Western Hemisphere,

the Western World,

and the Anglosphere.

Other nearby markers. At least 8 other

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markers are within walking distance of this marker: Central to the System / How It Worked (here, next to this marker); Sand Washer (about 400 feet away, measured in a direct line); Regulator House (about 500 feet away); Sand Bin (about 500 feet away); Green Space / Sustaining the City (about 500 feet away); Iconic Landmark / Fitting Tribute (about 500 feet away); Court Nullifies Racial Covenants (approx. 0.2 miles away); The Glenwood Cemetery Chapel (approx. ¼ mile away). Touch for a list and map of all markers in Northwest Washington.

Photographed by Shirley A Stirling, April 8, 2026

2. Filter Bed Marker

Photographed by Shirley A Stirling, April 8, 2026

3. Filter Bed Marker

Area next to the Filter Bed Marker image. Click for full size.

Photographed by Shirley A Stirling, April 8, 2026

4. Area next to the Filter Bed Marker

Credits. This page was last revised on April 10, 2026. It was originally submitted on April 10, 2026, by Shirley A Stirling of Lacey, Washington. This page has been viewed 15 times since then. Photos: 1, 2, 3, 4. submitted on April 10, 2026, by Shirley A Stirling of Lacey, Washington. • Devry Becker Jones was the editor who published this page.