New data confirms that the Anacostia River is getting cleaner

Improvements seen in two major water quality measurements

By Alexander R Gunnerson |
A woman leaps into a river from a wooden dock, joining more than a dozen swimmers who are already in the water.
Roughly 50 swimmers attend a Wave One Swimming "Sunday Sunrise" practice along a 500-yard course on the Potomac River in National Harbor, Maryland. (Photo by Caroline Grass/Chesapeake Bay Program)
A man uses a long-handled grabber to dip a plastic bottle in and out of a river, as part of his work to take a water quality sample.
Masaya Maeda of the Anacostia Watershed Society collects a water sample from the Anacostia River in Washington in 2017. (Photo by Will Parson/Chesapeake Bay Program)
Figure 1. Short-term flow-adjusted spring and summer chlorophyll-a trends show improvements in the tidal Anacostia. Source: Chesapeake Bay Program Integrated Trends Analysis Team.
A map overlaid with pie charts that show bacteria levels at various monitoring stations along the Anacostia River.
Figure 2. Citizen science monitoring results for bacteria in the Anacostia. Kingman Island corresponds to station AR-3, Buzzard Point corresponds to station AR-6 and the Washington Channel corresponds to station AR-7. Source: 2022 DC Citizen Science Water Quality Monitoring Report.

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