Virginia Regulatory Town Hall
Agency
Virginia Department of Health
 
Board
State Board of Health
 
Guidance Document Change: The Virginia Department of Health (VDH)has developed the "Guidance for Cyanobacteria Bloom Advisory Management" document to provide public health protective thresholds for recreational swimming waters, recommendations on follow-up sampling and issuance of advisories when cyanobacteria cell counts and or toxins exceed protective thresholds, and recommendations on when advisories may be lifted. This guidance is not intended to serve as state regulation, rather, it is intended to provide science-based public health recommendations for waterbody managers in the commonwealth. Cyanobacteria blooms are more common in slow-moving freshwaters such as lakes and reservoirs, however, they may also occur in estuarine and marine environments. This guidance is the first formal guidance of its kind, but follows several iterations of provisional guidances for cyanobacteria. For prior versions of provisional guidance and for more information on cyanobacteria and the state's Harmful Algal Bloom Task Force, please visit www.SwimHealthyVa.com.
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4/14/21  6:34 am
Commenter: Harry Looney, Lake Anna Civic Association

VDH Document – Guidance for Cyanobacteria Bloom Recreational Advisory Management
 

The Water Quality Committee Chair for the Lake Anna Civic Association (LACA) has read and understands the proposed guidance and recommends that VDH approve the guidance and use it starting in 2021.  The guidance provides a detailed and structured approach to recreational advisory management when cyanobacteria blooms occur in the State.

LACA requests that VDH continue to consider protocols that could include the use of citizen water monitoring groups like LACA’s for cyanobacteria bloom monitoring and formalize the basic protocols in future iterations of this document.  A citizen monitoring group that has been certified by the Virginia Department of Environmental Quality (DEQ) to collect water samples and field parameters at level 3 quality of assurance levels should be able to collect water samples for cyanobacteria monitoring under approved VDH or DEQ protocols.  These samples could be sent to VDH laboratories for analysis using certified instruments to conduct the cell counts and toxin measurements.  The protocols could include limitations that would ensure limited lab resources (time and funding) are not overwhelmed by the addition of the citizen water sampling activities.

CommentID: 97707