Harmful Algal Blooms and Cyanotoxin Health Advisories: An EPA Public Meeting and Webinar

Hazen and Sawyer recently authored a white paper that discusses the implications and causes of harmful algal blooms, such as the 2011 bloom in Lake Erie that impacted over half of the lake shore. (Photo Credit: MERIS/ESA, processed by NOAA/NOS/NCCOS).

Beaufort-Jasper Water and Sewer Authority hired Hazen and Sawyer to develop a comprehensive algae and T&O management plan centered on managing algae and cyanobacteria populations in the water supply and on treatment options for T&O at the system’s water treatment plants.

(NEW YORK, NY – May 7, 2015) – The Environmental Protection Agency (EPA) is hosting a day-long stakeholder meeting on Monday, May 11 in Arlington (VA) to discuss harmful algal blooms and their intent to issue Cyanotoxin Health Advisories.

Cyanobacteria are naturally occurring organisms similar to algae. These organisms can occur in fresh water and may rapidly multiply causing “blooms” under favorable conditions. Conditions that enhance bloom formation and persistence include light intensity and duration, nutrient availability (such as nitrogen and phosphorus), water temperature, pH and water column stability. Some blooms produce cyanotoxins such as microcystin, cylindrospermopsin and anatoxin-a, which can be a health concern.

The EPA is developing health advisories for two cyanotoxins: microcystin and cylindrospermopsin. A health advisory is an estimate of acceptable drinking water levels for a contaminant based on health effects and other information, and also provides recommended analytical and treatment techniques. Health advisories are intended to assist federal, state, and local officials and public water system managers in achieving public health goals.

The focus of this public meeting is to gather input on additional information the Agency can provide to states and public water systems to help them prepare for and respond to potential cyanotoxin health concerns in drinking water.

For more information or to register for the meeting, visit the Federal Register.

Since our founding in 1951, Hazen and Sawyer has focused on two things: providing safe drinking water and controlling water pollution. Our range of services encompasses “all things water” including the planning, design, and construction management of water and wastewater-related projects – from clean water treatment, storage, and distribution to wastewater and stormwater collection, treatment, and reuse.

Hear about new publications with our email newsletter

We will never share your details with anyone else.