Recreational Water Advisories/Closings

Last updated: May 17, 2022

Closings and advisories are listed below.

Lab results from collected water samples take at least two working days to process. Closings and advisories remain in effect until results meet acceptable levels for one or more days. Acceptable levels are determined by the State, U.S. Environmental Protection Agency and the Anne Arundel County Department of Health.

Warning: There is always an associated health risk from swimming in any natural body of water. Natural water bodies contain bacteria, viruses and other harmful microorganisms. Disease-causing microorganisms, such as Mycrobacterium marinum or Vibrio vulnificus can enter the body through open cuts, scrapes and wounds. Fact Sheets on Recreational Water Illnesses.

Preemptive AdvisoryPreemptive Rainfall Advisory
After rainfall of 1/2 inch or more, all Anne Arundel County beaches are under a no swimming/no direct water contact advisory for at least 48 hours due to predicted elevated bacteria levels from rainwater runoff and increased health risks. Do not swim in cloudy, murky water. During the summer swim season, the Recreational Water Quality Monitoring Program will resume its routine sampling following the 48-hour period.
Water Closed SignEmergency Closing
The Department of Health issues a closure when a sewage spill, leak or other problem indicates human waste has impacted the water.
Water Advisory SignHealth Advisory
The Department of Health issues advisories against direct water contact when routine sampling results exceed the EPA acceptable standard for enterococci bacteria or a harmful algae bloom has been identified.

The Department of Health has ordered recent closings, issued advisories or conducted assessments for the County waterways listed below:

8.6.21 – Water Advisory Lifted for North Branch of Cypress Creek (Advisory Issued 7.28.21)

August 6, 2021 — The Anne Arundel County Department of Health has lifted the closing of the North Branch of Cypress Creek off of the Magothy River in Severna Park due to a sewage spill that occurred on July 28, 2021.

It is estimated that 70,000 gallons of sewage was discharged from the Cape Arthur 5 pumping station and caused direct impact to the North Branch of Cypress Creek.

The closure was in effect for one week following the spill. There were no beaches located in the impacted area or water quality background history, therefore a sampling did not occur. The area was posted by the Anne Arundel County Department of Public Works.

Previous Closings and Advisories

Water Quality Alerts

Subscribers to the Department’s Recreational Water Quality E-mail Alerts receive an e-mail notifying them when county waterways are closed and reopened. Alerts can also be received via text messages by following the Department on Twitter. Furnace, Marley and Rock Creeks, click here for more information. For more information, call the Recreational Water Quality Monitoring Program at 410-222-7241.

For information on water quality and swimming or fish kills in Anne Arundel County rivers and creeks, see Emergency Numbers for Fish Kills, Algae Blooms and Pollution Issues.

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