Anacostia River - Yards Park Marina Education Dock


The education dock at Yards Park Marina

The Anacostia River is designated as a Class A waterway, which means primary contact, however the DC Department of Health (DOH) bans swimming in the Anacostia due to sewage overflows. The risk of high bacteria levels after a heavy rain storm is the only reason it is considered “unsafe” to swim in the river. The activation of the Clean Rivers Project on the Anacostia River is expected to prevent 80% of sewer overflow volume, getting us significantly closer to a swimmable river 365 days a year.

WATER QUALITY
  • Passed water quality tests 60-95% of the time
  • Historical Status
  • This status is based on the latest sample, taken on . Anacostia Riverkeeper, Inc. updates the status of this beach as soon as test results become available. These results were posted to Swim Guide on at
For water quality icon legend, click:   
MONITORING FREQUENCY

is sampled weekly from 1 April to 31 October

SOURCE INFORMATION

Anacostia Riverkeeper staff, interns, and volunteers test water quality at several access points along the river. We also partner with Gallaudet University and Anne Arundel Community College to collect and test water samples.

Testing occurs bimonthly at 4 sites along the Anacostia River: Bladensburg Waterfront Park, between the North end of Kingman Island/Langston Golf Course and Kenilworth Park very near the National Arboretum, the South end of Kingman Island near RFK Stadium just North of CSX Bridge, and at the Yards Park Marina Education Dock.

The Anacostia River is a tidal freshwater river.

Water is tested for Enterococci, a fecal coliform. Enterococci is measured as colony-forming units/ 100 ml and are indicators of fecal contamination by warm-blooded animals including birds and mammals. The bacteria that fall into this group are not themselves, typically infectious, but their presence is strongly correlated with the presence of other bacteria that can cause both gastrointestinal and skin infections. The high limit for water that is regularly used for swimming is 104 cfu/ 100 ml. In addition, the District and county agencies recommend not swimming in the water for 48 hours after a rain event of 0.5 inches or more, especially for those that are immunosuppressed and those with open wounds.

Water samples are taken weekly May through October at the Yards Park Marina Education Dock. The other locations are sampled bi-monthly.

Weekly sampling occurs either Wednesday or Thursday and is reported the next day.

Results are posted on our website, on SwimGuide, and results are distributed weekly to a mailing list of interested groups and individuals. Anacostia Riverkeeper reports results to the DC Department of Energy and Environment. Anyone may request to be added to our distribution email list.

A “No Direct Water Contact” advisory will be issued when either
1) when the count is above 104 cfu/100mL
2) a CSO warning light is triggered, indicating an active sewage overflow and/or
3) a half inch of rain or more has fallen in the span of 2 hours or less as this is a high probability that a sewage overflow has occurred even if the warning light has not activated. This Advisory is lifted 72 hours after triggering event.

Samples recording less than 104 cfu Enterococci /100ml are therefore considered "green", having met water quality standards. Samples recording 104 cfu/100ml or greater are considered "red" due to their failure to meet criteria, and the increased risk of illness.

The Anacostia River is designated as a Class A waterway, which means primary contact, however the DC Department of Health (DOH) bans swimming in the Anacostia due to sewage overflows. The risk of high bacteria levels after a heavy rain storm is the only reason it is considered “unsafe” to swim in the river. The activation of the Clean Rivers Project on the Anacostia River is expected to prevent 80% of sewer overflow volume, getting us significantly closer to a swimmable river 365 days a year.

WATER QUALITY GRAPH

Anacostia River - Yards Park Marina Education Dock


WATER QUALITY
  • Passed water quality tests 60-95% of the time
  • Historical Status
  • This status is based on the latest sample, taken on . Anacostia Riverkeeper, Inc. updates the status of this beach as soon as test results become available. These results were posted to Swim Guide on at
For water quality icon legend, click:   

The education dock at Yards Park Marina

The Anacostia River is designated as a Class A waterway, which means primary contact, however the DC Department of Health (DOH) bans swimming in the Anacostia due to sewage overflows. The risk of high bacteria levels after a heavy rain storm is the only reason it is considered “unsafe” to swim in the river. The activation of the Clean Rivers Project on the Anacostia River is expected to prevent 80% of sewer overflow volume, getting us significantly closer to a swimmable river 365 days a year.

MONITORING FREQUENCY

is sampled weekly from 1 April to 31 October

SOURCE INFORMATION

Anacostia Riverkeeper staff, interns, and volunteers test water quality at several access points along the river. We also partner with Gallaudet University and Anne Arundel Community College to collect and test water samples.

Testing occurs bimonthly at 4 sites along the Anacostia River: Bladensburg Waterfront Park, between the North end of Kingman Island/Langston Golf Course and Kenilworth Park very near the National Arboretum, the South end of Kingman Island near RFK Stadium just North of CSX Bridge, and at the Yards Park Marina Education Dock.

The Anacostia River is a tidal freshwater river.

Water is tested for Enterococci, a fecal coliform. Enterococci is measured as colony-forming units/ 100 ml and are indicators of fecal contamination by warm-blooded animals including birds and mammals. The bacteria that fall into this group are not themselves, typically infectious, but their presence is strongly correlated with the presence of other bacteria that can cause both gastrointestinal and skin infections. The high limit for water that is regularly used for swimming is 104 cfu/ 100 ml. In addition, the District and county agencies recommend not swimming in the water for 48 hours after a rain event of 0.5 inches or more, especially for those that are immunosuppressed and those with open wounds.

Water samples are taken weekly May through October at the Yards Park Marina Education Dock. The other locations are sampled bi-monthly.

Weekly sampling occurs either Wednesday or Thursday and is reported the next day.

Results are posted on our website, on SwimGuide, and results are distributed weekly to a mailing list of interested groups and individuals. Anacostia Riverkeeper reports results to the DC Department of Energy and Environment. Anyone may request to be added to our distribution email list.

A “No Direct Water Contact” advisory will be issued when either
1) when the count is above 104 cfu/100mL
2) a CSO warning light is triggered, indicating an active sewage overflow and/or
3) a half inch of rain or more has fallen in the span of 2 hours or less as this is a high probability that a sewage overflow has occurred even if the warning light has not activated. This Advisory is lifted 72 hours after triggering event.

Samples recording less than 104 cfu Enterococci /100ml are therefore considered "green", having met water quality standards. Samples recording 104 cfu/100ml or greater are considered "red" due to their failure to meet criteria, and the increased risk of illness.

The Anacostia River is designated as a Class A waterway, which means primary contact, however the DC Department of Health (DOH) bans swimming in the Anacostia due to sewage overflows. The risk of high bacteria levels after a heavy rain storm is the only reason it is considered “unsafe” to swim in the river. The activation of the Clean Rivers Project on the Anacostia River is expected to prevent 80% of sewer overflow volume, getting us significantly closer to a swimmable river 365 days a year.

WATER QUALITY GRAPH



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