Filamentous algae blooms can interfere with designated uses of a river - typically water contact recreation
and public water supply. The images display the extent of the problem in some impacted rivers.
If entities supplying public drinking water have an intake located in an area of a filamentous algae bloom,
they commonly receive complaints about the odor and/or taste of the water, requiring additional treatment
and expenditures. Recreational activities, such as swimming and fishing, can be impacted by the excessive
algae, and lessen one's ability to enjoy state rivers and streams.