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All 2023 recreational advisories expired on October 31. There are no current advisories posted by the Virginia department of health (vdh) for lake Anna.

HAB monitoring will begin in May 2024 during regular Virginia Department of Environmental Quality (DEQ) sampling sessions.

To submit a HAB report or scum sighting, utilize the online report form located at the VDH website.

The Google Earth polygons used by the VDH to issue advisory areas are included in the .kmz file linked below:

VDH Google Earth Polygons

The Lake Anna Bloom status report has been updated on the website under the quick links page of the HAB website.

Please bookmark site, and use this page to stay up to date on HAB updates.

You can view the current status of HAB events throughout Virginia on VDA's HAB map.

Report suspected HAB-related HEALTH complaint to the HAB Hotline 1-888-238-6154. All requests for HAB sampling updates received on the HAB hotline will be referred to the website.

A few reminders on reporting and resources:

To submit a HAB report or scum sighting, utilize the online report form.

VDH has many HAB resources available via the HAB resources list on their website, including talking points, signage, and brochures. If you are contacted for information, please point citizens to these resources.

Citizen reports called “Crowd-Sourced Reports” are displayed on the VDH HAB Map online, represented by blue dots on the map. 

If you see what you suspect to be an algae bloom, please report it to the Virginia Department of Health, even if a Recreational Advisory is already in place near your property.  Use the HAB Online Report Form and submit weekly updates with images to keep VDH up to date.   A report must be based on current conditions - a report that documents a past condition (defined as greater than 48 hours in the past) will be rejected by VDH.  Submit reports to VDH using the online reporting form within 24-48 hours of the algae bloom condition. 

Geographic coordinates are required when you submit a report.  You can use Google Maps, or other mapping tools, to provide the latitude and longitude of the location. 

Also - and this is essential - include a picture of the algae/scum condition with your report.

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