Harmful algal blooms (HABs) can have a negative impact on the ecosystem and human health. Satellite remote sensing is able to collect data frequently and over a large area to identify impaired water quality from HABs. This data can inform decision-makers on where best to put their resources for taking water samples, determine what toxins are in the water, whether they need to change or move drinking water intakes, and whether a fishery needs to be closed. Remote sensing data enables individuals and organizations to have more flexible plans for water sampling. It also leads to a more efficient and appropriate allocation of resources for protecting human health.