Algae and Cyanotoxins Resources
- Erik Rosenfeldt, Bill Becker, Mark Bishop - Hazen and Sawyer
Water utilities are facing increased threats of harmful algal blooms (HABs) and cyanotoxins in their drinking water supplies, particularly in the summer months. Algae-related toxins may cause taste and odor issues, and more importantly, can result in shutdowns of the water system to protect public health.
A holistic approach for reducing risk from HABs and cyanotoxins considers monitoring and managing HABs in source water, and treatment barriers for algal toxins in the plant. The resources at this link can help guide your utility through the monitoring process and help you develop a response should you face an algal event.
These resources include:
A 11×17 Printable Wall Poster
This wall poster walks you through the steps involved in monitoring for – and responding to – algae events of varying severity.
This fact sheet covers the EPA guidance recommendations issued in May 2015.
Hazen-Adams CyanoTOX Model
This model, available to AWWA subscribers, calculates how various oxidants at a water treatment plant impact cyanotoxin concentrations.
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