![]() ![]() We encourage users to explore the sample data in addition to checking the swim guide status. Water quality standards as well as the methods used to determine pass or fail status vary widely across jurisdictions and monitoring programs. Recreational activity also includes walking, jogging, hiking, bike riding, and dog walking in the marina and along trails in Dyke Marsh. Belle Haven Marina is located directly down river from Hunting Creek where Alexandria discharges three of its four major CSO outfalls (Outfall 002, 003 and 004). People also swim, kayak and sail in this part of the Potomac River. The sampling site is located at the very end of the marina, past the kayak and sailing rentals, where the road abruptly ends at two concrete pilings. Grey means there is no current water quality information, the beach is under construction, there has been an event that has rendered water quality information unreliable or unavailable.īelle Haven Marina is located off the George Washington Memorial Parkway behind the Mount Vernon Trail adjacent to the 480-acre Dyke Marsh Wildlife Preserve. Red means the water at the site has water quality issues or there is an emergency. This status does not indicate current water quality. This means that this site has been issued a Blue Flag status for the current swimming season. We may manually set the status for a specific beach if we have concerns about the sampling protocol, if there is an emergency, if monitoring practices don't exist or have recently changed, or other reasons that render this site "special." Red means the beach failed water quality tests 40% of the time or more. Yellow means the beach passed water quality tests 60-95% of the time. Green means the beach passed water quality tests 95% of the time or more. This means that rather than displaying current data it displays the beach's average water quality for that year. When swimming season is over or when a beach's water quality data has not been updated frequently enough (weekly) it goes into historical status. Grey means water quality information for the beach is too old (more than 7 days old) to be considered current, or that info is unavailable, or unreliable. Red means the beach’s most recent test results failed to meet water quality standards. Our 2022 trail events are sponsored by the National Landing Business Improvement District.Green means the beach’s most recent test results met relevant water quality standards. Donate to keep our volunteers equipped with tools and supplies at Donate to Friends of the Mount Vernon Trail.īy registering to volunteer, you're agreeing to our Photo Release and Liability Waiver. We're raising funds to continue to improve the Mount Vernon Trail.
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