The Fish Guide is a useful tool to help anglers make informed decisions about eating caught fish. The guide collects fish consumption advisories from the states of Virginia, Maryland, and the District of Columbia that focus on fish caught in the Potomac River and its tributaries. Advisories are a recommendation to limit or avoid eating … Read More


CSO Outfall 29 Dry Weather Events

Imagine you are out paddling along the shores of the Lower Potomac River, enjoying a crisp but sunny fall day. You can feel the warmth of the sun on your shoulders as you paddle your kayak or SUP, and are admiring the sounds of the Canada Geese flying overhead signifying the arrival of fall. Suddenly … Read More

Chesapeake Dolphin Watch

The work of the Potomac Riverkeeper Network doesn’t just benefit the 6 million people within the watershed, it also benefits the wildlife! One of the most iconic species our work impacts is the Chesapeake Bottlenose Dolphin. Dolphins are an important indicator species because they are an apex predator, indicating a healthy ecosystem. Dolphins are also … Read More

After the Storm

After the Storm — Pollution in the Potomac

Whenever it rains in Washington, D.C., raw sewage spills into the Potomac River. These Combined Sewer Overflows release pollutants like fecal coliform bacteria and e. coli into the waterway that can sicken animals, fish, and humans, and deplete oxygen levels causing harmful algal blooms. An outdated sewer system is to blame. “After the Storm: Pollution … Read More

Potomac Riverkeeper Dean Naujoks out patrolling with the newly donated Yamaha Motor.

To Our Citizen Science Volunteers

I sincerely want to thank all of you for the amazing work you have done collecting samples every single week and helping to operate our lab on the Sea Dog! The first week in October is the last week we will be sampling in VA and Maryland! We have come a long way since we … Read More

A Tale of Two Rivers

Water Wednesday: A Tale of Two Rivers (Video)

The Potomac River is a haven for many of us. It provides a space for recreation including kayaking, fishing, paddleboarding, and even open water swimming, but is it safe? Urban stormwater, sewage overflows, agricultural runoff, and industrial pollution all threaten the ecology of the River, and the safety of those who recreate on it. We … Read More

sailor soundcloud

Sailor Turns Sleuth in Battle for Nation’s River

You’ll enjoy this feature story by Tom Pelton of Environmental Integrity Project on Upper Potomac Riverkeeper Brent Walls and his battle to save the Upper Potomac River: “Sailor Turns Sleuth in Battle for Nation’s River This 18 minute audo recording will be of interest because goes into more depth about the town of Luke, Maryland, … Read More

Press Release

Trash-Free Potomac Campaign Launch

POTOMAC RIVERKEEPER NETWORK LAUNCHES TRASH-FREE POTOMAC CAMPAIGN Raising Awareness about Plastic Pollution in the River Washington, D.C. – August 25 – Potomac Riverkeeper Network today announced the Trash-Free Potomac Campaign to inform everyone in the Washington area about trash and plastic pollution in the Potomac River, so that they can better appreciate the seriousness of … Read More

Watr Quality Monitoring at Mallows Bay

Water Testing at Mallows Bay

We are really proud to include the National Marine Sanctuary at Mallows Bay as one of our new water testing sites this year. Mallows Bay, the nation’s newest marine sanctuary, is home to the famous Ghost Fleet, the sunken ships from WWI; a favorite spot for kayakers and canoers, it features a unique opportunity to … Read More

Press Release

1st Annual Swimmable Potomac Report Issued by PRKN

POTOMAC RIVERKEEPER NETWORK ISSUES SWIMMABLE POTOMAC REPORT Identifies Where and When The Potomac is Safe For Human Contact Washington, D.C. – July 23 – Potomac Riverkeeper Network (PRKN) today released its first annual Water Quality Monitoring Report for the Potomac River, which analyzes the data and results of water sampling at 10 sites along the Potomac … Read More