In the past decade, climate change-exacerbated landscape disturbances such as wildfires and floods have threatened water security by altering not only water availability, but also source water quality and consequently treatability. An international panel convened by the Canadian Water Network and the Water Research Foundation in 2014 concluded that sole reliance on in-plant treatment technologies for mitigating such risks is inadequate.
Algae blooms—especially cyanobacteria—pose some of the greatest associated challenges to drinking water treatment. Cyanobacteria blooms can reduce drinking water treatment process efficiency, leading to service disruptions, inability to meet community demands, and even outages. Moreover, they can produce toxins that expensive advanced treatment not found in most conventional treatment plants.
Traditional source water protection approaches are alarmingly inadequate for managing these threats, especially in a changing climate. These…